LI B R.AR.Y OF THE U N I VERSITY Of ILLINOIS no. 4^5-4-57 NOTICE: Return or renew all Library Materials! The Minimum Fee for each Lost Book Is $50.00. The person charging this material is responsible for its return to the library from which it was withdrawn on or before the Latest Date stamped below. Theft, mutilation, and underlining of books are reasons for discipli- nary action and may result in dismissal from the University. To renew call Telephone Center, 333-8400 UNIVERSITY OF ILLINOIS LIBRARY AT URBANA-CHAMPAIGN 986 L161 O-1096 ILLINOIS CORN PERFORMANCE TESTS . . . 1938 University of Illinois Agricultural Experiment Station Bulletin 450 In cooperation with the Division of Cereal Crops and Diseases, Bureau of Plant In- dustry, U. S. Department of Agriculture, and the Illinois State Natural History Survey CONTENTS (Text) Page* SCOPE OF THE TESTS 227 SOIL CHARACTERISTICS OF FIELDS 228 METHOD OF PLANTING 228 SEASONAL CONDITIONS 230 INSECT PROBLEMS 231 DISEASE LOSSES 232 DROPPED EARS 237 MEASURING PERFORMANCE OF ENTRIES 237 1938 RESULTS OF PERFORMANCE TESTS 239 THREE- YEAR AND TWO-YEAR SUMMARIES 241 CONTRIBUTORS OF SEED FOR THE 1938 TESTS 245 PEDIGREES OF ILLINOIS AND U.S. HYBRIDS 246 RESULTS IN SOIL ADAPTATION TESTS 266 SUMMARY 270 LOCATION OF 1938 TEST FIELDS 272 (Tables) GENERAL INFORMATION 228 TESTING FIELDS 229 DISEASE DAMAGE 234-235 NORTHEASTERN ILLINOIS: Libertyville 247, 249 NORTHERN ILLINOIS: Kings 248-249 WEST NORTH-CENTRAL ILLINOIS: Cambridge 250-251 EAST NORTH-CENTRAL ILLINOIS: Reddick 252-254 WEST-CENTRAL ILLINOIS: Littleton 255-257 EAST-CENTRAL ILLINOIS: Paxton 258-259 SOUTH-CENTRAL ILLINOIS: Sullivan 260-262 SOUTHERN ILLINOIS: Shobonier 262-263 SOUTHEASTERN ILLINOIS: Albion 264 EXTREME SOUTHERN ILLINOIS: Elizabethtown 265 SOIL ADAPTATION TEST: Central Illinois, Sibley 266, 268 SOIL ADAPTATION TEST: Central Illinois, Urbana .. . 269 Acknowledgment is due the following farm advisers for their collaboration in these tests: H. C. GILKERSON, Lake county; D. E. WARREN, Ogle county; H. K. DANFORTH, Henry county; G. T. SWAIM, Kankakee county; R. T. NICHOLAS, Schuyler county; H. D. TRIPLETT, Ford county; P. M. KROWS, Moultrie county; J. B. TURNER. Fayette county; W. D. MURPHY, Edwards county; and G. C. SMITH, Pope and Hardin counties. Urbana, Illinois January, 1939 Second printing, with corrections Illinois Corn Performance Tests 1938 By G. H. DUNCAN, A. L. LANG, J. H. BIGGER, BENJAMIN KOEHLER and OREN BOLIN* FULLY HALF the 8.4 million acres of Illinois land in corn in 1938 was planted with hybrid seed. In some counties fully 80 to 90 percent of the corn acreage was hybrid. This bulletin is the fifth annual report of the Illinois Station on the results obtained in performance tests of corn varieties and hybrids in Illinois. As in the previous four years, corn hybrids were submitted to competitive trials in various sections of the state in order to test their adaptation. The growing conditions of 1938 brought out the adaptational limits of the entries to an extent that none of the four previous seasons had done. This fact emphasizes the importance of conducting yield tests thru a period of years and of using long-term averages as a guide in choosing strains. Results of tests in any single year, taken by them- selves, indicate the suitability of entries to that one kind of season and to the kind of soil on which they happen to be grown. SCOPE OF THE TESTS In the 1938 corn-performance trials a total of 219 hybrids and 27 open-pollinated varieties were tested in ten fields located in different parts of Illinois. The number of entries per field was limited to sixty in the interest of accuracy of results. Consequently not all entries submitted could be accommodated. On each field five entries were adapted open-pollinated varieties selected to serve as a check. Twenty- one commercial producers entered hybrid seed corn, and twenty-six companies and individuals furnished the open-pollinated varieties. In order to get representative seed for the tests, the warehouses of the various producers were visited; and where enough seed was available, a sample of each variety or hybrid desired was made up by taking a small quantity from at least 5 different bushel lots. Entries which were obtained from less than 5 bushels of seed are marked in the tables with an asterisk. In most cases the grade sampled was that designated as the "regular flat." 1 G. H. DUNCAN, Chief in Crop Production, A. L. LANG, Assistant Chief in Soil Experi- ment Fields, Illinois Agricultural Experiment Station ; J. H. BIGGER, Associate Entomologist, Illinois State Natural History Survey; BENJAMIN KOEHLER, Chief in Crop Pathology; and OREN BOLIN, Associate in Plant Genetics, Illinois Agricultural Experiment Station. The authors are indebted to R. R. COPPER, formerly Assistant in Crop Production, for extensive assistance in conducting the field work, tabulating the results, and preparing this report. 227 228 BULLETIN No. 450 [January, SOIL CHARACTERISTICS OF FIELDS The fields chosen for the 1938 tests were, on the whole, medium high in productivity. In locating a field effort was made to select a soil type that occurs extensively in the region which the field was to represent. Furthermore, care was taken to have each field as nearly uniform as possible both in soil type and in drainage conditions. At Elizabethtown the field extended over a partially eroded slope and included some redeposited sediment along the base of the slope. (See page 272 for map showing location of fields.) General information on soil characteristics and soil-management practices are indicated in Table 2. 1 Drainage is described as "rapid," "moderate," and "slow." When applied to the surface, "rapid drainage" indicates a tendency to erode ; "moderate" indicates satisfactory runoff with minimum erosion ; while "slow" indicates practically no natural surface movement. When applied to underdrainage, "rapid" indicates the existence of a drouthy condition; "moderate" indicates relatively free movement of excess ground water to tile but retention of sufficient moisture for normal plant growth; and "slow" indicates a nearly impervious subsoil. Table 1. GENERAL INFORMATION: Illinois Cooperative Corn Performance Tests, 1938 Location of field County Cooperator Number of Date entries planted Date harvested Average yield all entries Total Sound NE Libertyville Lake 45 May 11 May 16 May 12 May 13 June 3 May 5 May 4 May 12 May 17 May 3 Oct. 28 Nov. 3 Nov. 5 Oct. 27 Nov. 10 Oct. 26 Oct. 7 Oct. 11 Oct. 13 Oct. 12 68.0 87.9 89.6 65.3 57.9 48.9 67.0 39.9 81.9 55.6 67.6 87.0 89.0 64.3 56.9 48.1 66.1 39.7 81.0 54 2 N-Kings WNC Cambridge.. ENC Reddick.... WC yttleton.... EC Paxton . Ogle . Henry Kankakee Elmer Hayes 58 EarlCollis 60 E. S. Boyer 60 . Schuyler... . Ford TraRnrnhftm ...... . 60 Axel Pahnberg 60 SC Sullivan Moultrie. . . S Shobonier. . . . Fayette SE Albion Edwards. . . SS Eliiabethtown Hardin . . Masonic Home Farm. . . . . . Art Reichmann . 60 . 56 Ernest Schmidt.. . 50 . . Escol Oxford , . 42 METHOD OF PLANTING Each test field was located within a larger cornfield. The test corn was planted by hand on the same day or soon after the rest of the field was planted. The rows were joined with those of the surrounding corn so that the test plots could be cultivated along with the rest of the field. 'HERMAN WASCHER, Assistant Chief in the Soil Survey, determined the soil type, uniformity, and physical characteristics of each field. H. J. SNIDER, Assist- ant Chief in Soil Experiment Fields, made the chemical analyses. 1939] ILLINOIS CORN PERFORMANCE TESTS 1938 229 Table 2. TESTING FIELDS: Soil Characteristics and Management Practices a Surface color and drainage b Subsoil texture, and underdrainage pH values Surface* Subsoilf Organic matter Total nitrogen Available Available phosphorus potassium Surface* Sulwoilt Surface* Subsoilt Previous crops and soil management Northeastern Liberty rilleSaybrook tilt loam pertt. Ibt. Ibt. Ibi. a Brown, moderate 5.0* 2.7* 3610* 5* 193* Corn 1935, oats 1936 bSilty clay loam, moderate 6.5f 1.2t 2 lOOt 4f 180t Wheat 1937; no treatment, fall-plowed Northern Kingt Tama tilt loam a Light brown, moderately rapid 5.2* 2.4* 2920* 40* 178* Corn 1935, oate 1936, soybean* b Clayey silt loam, moderate 5.4t 1.3t 1 700t 15f 250t (hay) 1937; manured 1938. limed 1925, spring-plowed West north-central Cambridge Muscatine tilt loam a Brown, moderate 5.5* 2.6* 3210* 33* 140* Oats 1935, sweet clover 1936. bSilty c!ay loam, moderate 5.8t 1.6t 1 820t 6t 140t corn 1937; limed, spring- plowed East north-central Rrddick Lisbon day loam a Black, slow 5.9* 5.6* 5760* 202* 150* Corn 1935, oats 1936, corn bSilty clay loam, moderate 7.4f .... 140t 150t 1937; manured 1937, rook phosphate 1923; spring- plowed West-central Littleton Harriton tilt loam a Grayish brown, moderate 5.3* 32* 3160* 35* 157* Wheat 1935, red clover 1936, b Clay loam, moderately slow 5.8f 2. Of 2 lOOt 6f 150t corn 1937; no treatment. spring-plowed East-central Paxton Elliot tilt loam a Brown, moderate 5.4* 2.3* 2 560* 33* 105* Corn 1935, com 1936, oate, sw. b Clay loam, slow 7.0t 1.2f 1 800t 4t 150t cl.l937;manuredl937.Umed 1933, fall-plowed South-central SvUinni Floyd tilt loam a Brown, moderate 5.7* 3.3* 3700* 12* 155* Alfalfa 5 years, cop 1936, com bSilty clay loam, moderate 6.5f ... 15t 166t 193 7: limed, spring-plowed Southern Skobonier Hoyleton tilt loam a Gray, moderate 5.3* 1.8* 2070* 7* 123* Wheat 1935, sweet clover 1936. b Clay, very slow 4.5t l.lt 1 800f 6t 260t wheat.sw.cl.l937;limel935. spring-plowed ^^^^ .Southeastern Albion F'atlon tiliy day loam ! a Brownish gray, slow 6.0* 2.7* 3640* 187* 147* Corn 1935, corn 1936, oats 1937: I bSilty clay loam, moderately slow 6.7f 1.8t 2 140f 190t 180t no treatment, spring-plowed I Extreme south Elizabfthtou-n A m tilt loam, immature phase i a Reddish yellow, moderate to rapid. ...5.4* ... 2 030* 14* 207* Corn 1935, red clover 1936 and bSilty clay loam, moderate ... ... ... 1937; no treatment; H fall- plowed. H spring-plowed *tThese symbols are used to remind the reader that the first figure in these columns refers to surface conditions, the second to subsur- face conditions. 'Soil samples analysed in 1937. 230 BULLETIN No. 450 [January, On all but the Albion field, each entry (variety or hybrid) occupied 10 plots, each plot being 12 hills long and 2 rows wide. At Albion 45 of the 50 entries were planted in 9 plots instead of 10. All plots were planted 3 kernels to a hill, and the only correction made for stand was for missing hills. All seed was treated with an organic mercury dust before planting. Entries were arranged in the controlled random order, as described in Bulletin 427 (1936). With the few exceptions indicated in the tables of results, all plots of each entry were harvested. SEASONAL CONDITIONS Temperatures during the growing season of 1938 were very favor- able for corn. The weather was not extremely hot at any time, and abnormally cool days were very rare. Warm weather continued well into the autumn, the first killing frost occurring on October 24. At this time practically all corn the seed as well as the commercial crop was exceptionally dry. Rainfall was plentiful and reasonably well distributed in 1938. Precipitation was moderately light during the last half of April on all test fields. At Cambridge and Littleton heavy rains the first week of May prevented early planting. Continued wet weather at Littleton prevented planting until early in June. All except the three southern fields received abundant moisture during the middle of May. Rainfall during the growing season was adequate for good growth of corn. At Libertyville, Kings, and Paxton heavy rains the last week in June supplied more moisture than was needed. No injury resulted, however, except on the Paxton field, where percolation into the sub- soil was slow. Except in northern Illinois, rainfall in late August and early September was light, and the dry warm weather hastened the final development and maturity. Continuation of the dry warm weather into October caused the corn to dry out unusually well. Har- vesting began early, and much of the corn contained so little moisture it could have been readily shelled and marketed direct from the field. In northern Illinois rainfall during September was relatively plenti- ful and well distributed. Consequently the extremely early maturity prevalent in the central and southern sections was not characteristic of corn in that area. However, comparatively dry weather during October resulted in the corn being reasonably dry when harvested. On July 11 the Sullivan field was struck by a wind and hail storm which riddled the blades badly and broke off a considerable number of plants, especially of those entries which were susceptible to stalk breaking. Later windstorms added to the damage, with the result that the entries in this field were badly stalk-broken. Thus a high general- performance rating could be earned only by entries that endured extreme punishment. 1939] ILLINOIS CORN PERFORMANCE TESTS 1938 231 High winds at Littleton in Aug'ust and September caused much lodging, indicating weak root anchorage. A windstorm the night before the Cambridge field was harvested resulted in severe lodging there. INSECT PROBLEMS 1 General Conditions. The Illinois corn crop was relatively free from insect damage during 1938. Because of rains during May and June the early-season threat of chinch bugs did not materialize. Grasshopper depredations were limited to local areas, principally in Macoupin, Christian, Madison, and Montgomery counties. Losses due to cutworms, army worms, and other pests of that type were slight. Over a wide area grape colaspis was more prevalent than during earlier tests ; but the damage caused is not definitely known, and that insect was not observed to affect the corn on the test fields. Corn rootworms were apparently the only insects which in 1938 deserved consideration as a factor in the relative condition of the test fields. Both the corn rootworm, Diabrotica longicornis (Say), and the southern corn rootworm, Diabrotica duodecimpunctata (Fab) were present in the state, the former being more abundant at Reddick than at the other fields. Records of lodging due to rootworm attack were made during September and again at harvest in the north-central, central, and south- central sections of the state. The data on lodging published here (pages 253, 256, and 261 ) are the records made at harvest. These records, on being correlated 2 with the September records, proved a reliable index of the comparative amount of lodging caused by rootworm injury earlier in the season. Evidently any factor influencing early season lodging tended to influence late-season lodging in the same manner. Measuring Lodging. The lodging data were taken so as to show: (1) plants leaning 30 degrees or more, as in previous years; and (2) plants leaning more than 45 degrees. The resistance rating takes both points into account. The lodging score was obtained by taking half the percentage of plants leaning 30 degrees or more and adding to that the percentage leaning more than 45 degrees. The scores ob- tained in this manner tended to lessen the importance of slight leaning and to emphasize the importance of severe leaning. The average lodging score for the field was then obtained; and finally the resistance rating was computed by dividing average lodging score for 'Researches on other phases of the insect problem are being conducted cooperatively by the Illinois Station, the U. S. Bureau of Plant Industry, the U. S. Bureau of Entomology and Plant Quarantine, and the Illinois State Natural History Survey. 2 The coefficient of correlation between the two sets of data was computed for each field. A coefficient of + .330 would have been highly significant under the conditions existing, but the values actually found for the data from the three fields were + .726, + .830, and + .736. 232 BULLETIN No. 450 [January, the field by the lodging score for each variety, and multiplying by 100. The resulting figures, expressed as percentages, are shown in Tables 8A, 9A, and 11 A, on pages 253, 256, and 261. The ratings in these tables represent resistance to lodging due primarily to rootworm attack. Amount of Lodging. Lodging was most severe at Littleton, and was more severe at Reddick than at Sullivan. The severity of lodging at Littleton, where the total amount increased from 54.3 percent on September 21 to 80.6 percent on November 7, was due partly to a rain and wind storm during October. The storm evidently caused lodging of those plants which had been weakened but had not previously lost their hold on the soil. On the Littleton field only 29 of the entries showed lodging resist- ance higher than the average of the field. At both Reddick and Sullivan there were 35 such entries. Because of the extreme conditions on the Littleton field the spread between the resistance ratings of the different entries there was smaller than at the other fields. Thus the 1938 corn performance tests again bring out the fact, emphasized in reports of previous tests, that while many of the hybrids on the market today are outstanding in resistance to rootworm lodging, there are also many that are susceptible. A hybrid's resistance to root- worm attack should always be taken into account in deciding which hybrid to plant. DISEASE LOSSES Over the State. Stewart's disease and Diplodia stalk rot caused injury to corn over a wide area in Illinois in 1938. Attack by Stewart's disease reduces a plant's resistance to Diplodia, and thus is responsible for some of the damage credited to Diplodia. Damage from these two diseases was very severe thruout south- central Illinois. Farm advisers reported up to 50 percent losses in yield in some farm fields, and losses of 40 percent were indicated in some hybrids in the performance tests in this area. In extreme southern Illinois little damage occurred in the performance test. In the eastern part of the northern half of the state, damage was more noticeable than in the western part of this area. The damage caused directly by Stewart's disease in field corn in 1938 was, on the whole, no greater than what had occurred in 1932 and 1933, and probably not so great. Certainly the damage to sweet corn was not so great as in the two earlier years. In field corn the infection was confined mainly to the leaves because it did not come early enough to attack the stalks. In regular commercial corn, except in restricted areas, only parts of the leaves were blighted. The bacterium causing Stewart's disease, Aplanobacter stewarti, is carried from one season to the next mainly within the bodies of flea 1939] ILLINOIS CORN PERFORMANCE TESTS 1938 233 beetles. Large numbers of these insects overwintered in south-central Illinois in 1937-38 because of a mild winter. Fortunately, however, Stewart's disease was scarce in 1937, and very few of these insects carried the infection. Consequently it took some time for the disease to gain momentum in 1938. The season brought the worst and most widespread occurrence of Diplodia stalk rot ever recorded in Illinois. By far the largest part of the complaints came from farmers growing hybrids. In previous years severe cases of Diplodia stalk rot had often been observed in open- pollinated corn and some hybrids, but never before on such an extensive scale. Beginning in mid- August in many fields in south-central Illinois, whole plants were observed to blanch suddenly as tho frosted. These plants were scattered. Additional plants capitulated from day to day. The shanks broke down at almost the same time, and the bases of the stalks appeared rotted. Two to four weeks later pycnidia of Diplodia zeae appeared on nearly all such stalks. By harvest time stalk rot was found thruout the state. Early-planted and early-maturing corn was usually attacked the worst by the Diplodia organism. This experience is similar to one which farmers in south-central Illinois had with Krug corn some years ago. When Krug corn was taken south of its original home to where the season is longer, trouble from stalk rot followed. As a result of the Diplodia infection some fields lodged badly, for the rot greatly reduced the breaking resistance of the stalks. For- tunately in most areas no strong winds occurred, and so in most fields the corn stood up satisfactorily in spite of stalk rot. Losses in the Tests. Extensive losses from Stewart's disease and Diplodia stalk rot, especially from the latter, occurred on five of the ten testing fields reported in this bulletin. About a 40-percent reduction in yield was calculated to have occurred in some hybrids on the Sullivan field. Fully as large a loss probably occurred on the Shobonier field, but as chinch bugs also caused serious damage there, no satisfactory data on disease could be obtained. At Albion the yields of some hybrids were reduced 30 percent by disease; at Reddick and Paxton the losses were considerably less. Data on disease damage in the various entries, taken September 10 to 24 are reported in Table 3 (page 234). Observation started in the south and proceeded north. Each plot was scored according to the extent of premature dying of the leaves and stalks, and later the replicates were averaged according to the planting and entry keys. Working from plot numbers, the observers had no knowledge of what hybrids were concerned. No attempt was made to record data for the two diseases separately, for the relative importance of each could not always be determined. 234 BULLETIN No. 450 [January, Table 3. DISEASE DAMAGE: Premature Dying of Corn Plants Caused by Combination of Stewart's Disease and Diplodia Stalk Rot, at Four Locations (Observed September 10-24, 1938) Extent of premature dying Extent of premature dying Hybrid Red- dick ENC Pax ton EC Sulli- van SC Albion SE Hybrid Red- dick ENC Paxton EC Sulli- van SC Albion SE Bear OK-30... perct. perct. 16 perct. 37 70 43 '63 43 '40 60 '60 70 43 30 70 perct. '32 64 '82 '70 68 62 '68 60 50 64 46 84 82 '36 26 28 32 '66 '70 '58 60 68 60 68 50 '82 30 54 58 Illinois 588 perct. .. 32 perct. 22 30 perct. 'i? 47 57 83 'so 70 80 '87 perct. '44 '84 '72 82 '84 Bear OK-35 Illinois 751 32 Bear OK-60 16 '24 16 40 Illinois 753 .. 38 48 Illinois 784 Illinois 863 Illinois 947 Crow 608 Illinois 960 .. 28 32 32 18 Crow 640 lowealth AQ 74 Crow 701W lowealthCI .. 30 Crow 804 12 lowealth 15 32 DeKalb 606. .. DeKalb628 DeKalb 639 32 48 ... 30 lowealth 16A lowealth 22 lowealth 30 42 DeKalb 701 (W) DeKalb 702(W) DeKalb 817 DeKalb 821B 8 36 16 22 'ii lowealth 52 lowealth 53 Moews-Lowe 14 28 28 34 '26 DeKalb 823 16 Moewa-Lowe 20 16 DeKalb 825 Moews-Lowe 120 DeKalb 827 Moews-Lowe 514 26 DeKalb 828 Moews-Lowe 523 .... .. 26 DeKalb 830 Moews-Lowe 524 20 '58 '84 86 72 '64 60 '72 76 '72 DeKalb 831 Moews-Lowe 850 DeKalb 832 17 73 Moews 10 54 42 "56 30 38 73 87 63 '73 '96 67 77 83 DeKalb 870 34 50 DeKalb 871 64 DeKalb 903(W) 18 22 14 '37 Morgan-Wai. 106 70 DeKalb 907(W) DeKalb 915(W) National 118 72 DeKalb 917(W) National 120 .. 48 DeKalb 918(W) 20 '33 60 50 '57 '57 National 124 DeKalb 922(W) 6 18 22 National 125E FunkG32... FunkG33 Funk G46 24 26 National 130 National 131 National 132 FunkG49 FunkGSO Funk G53 32 National 117 National 1192 Pf.-Stieg. 90. .. 54 40 26 20 Funk G55 48 Pf.-Stieg. 160 .. 40 Funk G56 Pf.-Stieg. 360 Funk G62 34 36 Pf.-Stieg. 360A Funk G65 Pf.-Stieg. 365 .. 52 42 Funk G66 26 Pf.-Stieg. 375R Funk G74 56 Pf.-Stieg. 378 ; 32 26 28 18 36 44 '46 16 '28 52 30 36 '63 '67 60 'so 87 'so '77 '63 Funk G85 Pf.-Stieg. 380 .. 28 Funk G86 Funk G90 Pioneer 304 FunkG92 73 40 40 23 '83 83 70 FunkG94 18 34 Funk G95 Pioneer 308D 40 FunkG125 '36 Pioneer 312 22 Funk G212 ... 40 Pioneer 313 16 FunkG235 50 FunkG244 32 38 FunkG244T 58 Funk G527W P S M 370(Mit ) Funk G528W Funk G532W 74 18 40 26 57 67 57 Tit-Miami 612 36 Funk G537W 8 Tiemann 613 . Tllini 211 TiemannSOO Illini 222 U.S. 5 22 10 40 Illini 233 76 78 U. S. 13 Illini 411 U. S. 35 ... 20 46 U.S. 44 .. 44 Illinois 570 50 U.S. 61 .. 52 Illinois 582 ... 34 Walter-Pfister374... .. 44 (Table is concluded on next page) 1939} ILLINOIS CORN PERFORMANCE TESTS 1938 235 Table 3. Concluded Extent of premature dying Extent of premature dying Open-pollinated Red- Sulli- dick Paxton van Albion ENC EC SC SE Open-pollinated Red- Sulli- dick Paxton van Albion ENC EC SC SE Beckerle Y.D perct. perct. perct. pcrct. 52 Rice W.D. perct. perct. perct. perct. 53 Bunning W.D. 27 Roeschley Y.D . 46 Canterbury Y.D. 23 Sh. Golden Beauty. .. 43 Doubet Y.D. 20 24 Sommer Y.D 22 Hunt W.D. 52 St. Chas. White 28 Learning 20 Station Y.D . ... 22 34 Waddell W.D 42 30 20 Wilson Y.D. 43 56 Mountioy Y.D 26 A recheck of the Sullivan field at harvest time showed that those hybrids which had received a high score for disease infection bore Diplodia pycnidia near the base of 95 to 98 percent of the stalks. Only on the Sullivan field were data on broken stalks obtained. Here the correlation between stalk breaking and disease infection was found to be significant. For data taken on September 12, the correla- tion coefficient was .65, whereas .50 would have been significant. A correlation of 1.00 is perfect and is perhaps never obtained in biological data. Yields and Disease Resistance. Severity of disease was signifi- cantly correlated with low yield at Sullivan and Albion (Table 4). At Reddick and Paxton the correlation coefficients were too low to show significance. The least damage from disease occurred in the Paxton field. There were strong indications that disease susceptibility was asso- ciated to some extent with potentially high-yielding types. For instance, some hybrids in the tests and on farms contained a large number of plants bearing two ears. Usually it was the two-ear plants that died first from Diplodia infection. One-ear plants of the same hybrids lived longer. Stewart's disease did not appear to discriminate in this respect. The statistical data in Table 4 also show a trend in this direction. Table 4. DISEASE CORRELATIONS: Yield, Lateness of Silking, and Moisture in Grain at Harvest, Correlated With Resistance to a Com- bination of Stewart's Disease and Diplodia Stalk Rot, 1938 Correlation with disease complex Character considered Reddick Paxton Sullivan Albion Yield of grain, 1937 Yield of grain, 1938 Lateness of silking, 1938. . Moisture at harvest, 1937. .1309 -.1912 .0354 -.1263 .1921 .5891 .1576 .2479 -.3346 .6560 .5285 .7328 -.3635 .5714 .7396 .9128 236 BULLETIN No. 450 [January, Early Maturity and Disease Susceptibility. One fact stands out clearly from the disease ratings shown in Table 3, namely, that where a hybrid was entered in both northern and southern tests, it invariably was diseased much more severely in the southern tests. Obviously such hybrids would be full-season or late types in the central or north- central sections, but would be comparatively early when grown farther south. Illinois hybrid 960, about which there was so much complaint in the south-central area, behaved satisfactorily, for the most part, in the central and north-central parts of the state. Late Maturity and Disease Resistance. A statistical analysis was made of the relation between late maturity and resistance to the disease complex in which Diplodia stalk rot was the most injurious. Moisture in the grain at harvest is probably the best index of relative maturity, but the moisture data for 1938 could not be used because the disease caused premature dying and thus premature drying of the ears. The moisture data for 1937, a year in which these diseases caused no appreciable injury, were therefore used. Obviously only the hybrids that were entered both years could be used in the analysis. That the correlations were very high is shown in Table 4. Another less accurate measure of lateness of maturity is lateness of silking. The 1938 silking dates could be used because the diseases did not become serious until after that time. All the entries in the four fields could thus be used in the calculation. A significant correlation between lateness of silking and disease resistance was shown in two of the fields. Unquestionably some inbreds entering into given hybrids contribute directly to the resistance or susceptibility of the hybrids to the two diseases considered here ; but as the vast majority of the entries in these tests were hybrids of secret pedigree, no analysis of this matter could be undertaken. In view of the very high correlation between resistance to these diseases and lateness of maturity, the best general recommendation that can be given for a specific geographical location is to use those hybrids that require the entire growing season to reach maturity. A more specific recommendation is to consider the upper 10 or 20 entries in the field at the nearest latitude, and then compare the disease ratings of those entries in Table 3. Disease Outlook. Whether Stewart's disease will be a depressing factor in 1939 corn yields depends largely on winter temperatures and can be predicted fairly accurately by next April. Should a mild winter occur, the stage is set for greater losses next year, for most of the flea beetles that went into winter quarters carried the infection. Diplodia will overwinter without question, and the chances for trouble next year are above average. No satisfactory predictions can be made, however, because the degree of infection will depend consider- ably on weather conditions during the growing season. 1939] ILLINOIS CORN PERFORMANCE TESTS 1938 237 DROPPED EARS A count was made of the dropped ears on all the testing fields in 1938; but on only two of the fields (Reddick and Littleton) was there an appreciable number of ears on the ground. On these fields the percentage of dropped ears was computed by dividing the number of dropped ears by the number of plants, the assumption being that each plant had only one ear and that there were no barren stalks. At Reddick the average percentage of dropped ears for the sixty entries was .92 percent. The 55 hybrids averaged .84 percent, and the 5 open-pollinated varieties averaged 1.72 percent. The range among all entries was from to 3.39 percent. The following hybrids had more than 1 percent of dropped ears: M-L Hybrids 514 and 523; Pioneer Hi-Bred 307; DeKalb Hybrid 821B; Funk Hybrids G212, G532W, and G537W; lowealth Hybrid CI; National Hybrids 117 3 , 118, and 120; Pfister-Stiegelmeier Hybrid 90, and Moews Hybrid 12. At Littleton the average percentage of dropped ears for the sixty entries was .55 percent. The average of the 55 hybrids was .57 per- cent, and of the 5 open-pollinated varieties .33 percent. The range among all entries was from to 3.32 percent. More than 1 percent of dropped ears was found in the following hybrids: U. S. Hybrids 13 and 35; M-L Hybrid 514; Illini Hybrids 211 and 222; DeKalb Hybrids 827 and 823 ; Funk Hybrids G32 and G53 ; and lowealth Hybrid CI. MEASURING PERFORMANCE OF ENTRIES The entries in 1938 were rated, as they were each year from 1935 to 1937 inclusive, according to two measures of performance erect plants at harvest (lodging resistance), and yield of sound corn. Erect Plants. At the time of harvest each plot on the field was examined and the percentage of erect plants estimated. The per- centage of erect plants for a given entry was then computed from the estimates of all the replications of that entry. The rating for erect plants (relative lodging resistance) was calculated by dividing the percentage of erect plants for each entry by the average percentage of erect plants of all the entries in the field, and multiplying by 100. The best-standing hybrid thus shows the highest rating; the one with the most lodging, the lowest rating. A difference in lodging resistance of two hybrids is shown in the photograph on page 240. One of the hybrids pictured had an average of 73 percent erect plants for all replications ; the other had an average of only 48 percent. Sound Corn. To determine shelling percentage, the entire yield from one replication of each entry was shelled on the same day it was husked. All the shelled corn from a plot was poured thru an apparatus 238 BULLETIN No. 450 [January, called a divider, and a representative sample, consisting of one-eighth of the original quantity, was taken. This sample was divided into two lots, one of which was used for a moisture test and the other for a determination of damaged corn. The sample saved for the moisture test was preserved in a tight fruit jar. The moisture determinations were made with a Tag-Heppen- stall moisture meter within a few days after the samples were taken. The percentage of damaged corn was determined according to the Federal Grain Grade standards. The total acre-yield was calculated as shelled corn carrying 15.5 percent moisture, the upper limit allowable for No. 2 corn. The yield of sound corn was computed by deducting the amount of damaged corn from the total yield. The rating on sound yield of an entry is the ratio, expressed as percentage, of the yield of sound corn for that entry to the average yield of sound corn for all the entries on the field. General Performance Rating. In computing the general per- formance rating of an entry, the ratings for erect plants and sound corn were averaged, but the sound-corn rating was given three times the weight of the rating for erect plants. It was considered that this weighting is justified by the fact that altho a corn grower is primarily interested in high yields, the standing ability of the crop should at the same time receive consideration. When two or more entries tied in performance rating, the ties were given the same numerical ranking, but they are listed in the order of their descending yield of sound corn. Chance Differences. Too much emphasis must not be placed on the exact ranking of a hybrid in the following tables, for chance has played a part in determining the placing of many of them. Unmeasured differences in soil, in prevalence of insects and diseases, and unac- countable variability in stand will cause differences in yield that are not inherent in the hybrids or varieties. The part played by chance in the 1938 tests has been calculated by the mathematical procedure known as "analysis of variance." At the bottom of each table the approximate difference in yields needed to show a true difference between the entries is stated. On the Sullivan field, for example, unless the difference between two entries is at least 5.4 bushels an acre, there is no assurance that the one is inherently higher yielding than the other. Readers are urged to note the difference necessary for significance, as shown for each test field, and to keep that difference constantly in mind in all comparisons of entries on that field. 1939] ILLINOIS CORN PERFORMANCE TESTS 1938 239 1938 RESULTS OF PERFORMANCE TESTS Northeastern. On the Libertyville field the five best hybrids exceeded the five open-pollinated varieties by 14.0 bushels of sound corn an acre and by 10.4 points in percentage of erect plants. Thirty- eight hybrids had higher general-performance ratings and two had lower general-performance ratings than the five open-pollinated varieties. The five poorest hybrids yielded an average of 2.6 bushels of sound corn per acre less than the open-pollinated varieties ; but all the hybrids had higher percentages of erect plants than the open- pollinated varieties. Moisture content ranged from 24 to 34 percent. (See page 247.) Northern. On the Kings field all hybrids had higher general- performance ratings than the five open-pollinated varieties. The five best and the five poorest hybrids exceeded the average of the five open-pollinated varieties by 23.5 and 8.1 bushels, respectively, of sound corn per acre. In percentage of erect plants, the five best hybrids were 21.2 points better, and the five poorest hybrids 12.8 points better than the average of the open-pollinated varieties. (See page 248.) West North-Central. On the Cambridge field the 55 hybrids tested were better than the average of the five open-pollinated varieties. The five best and the five poorest hybrids were 19.3 bushels and 2.5 bushels of sound corn per acre, respectively, better than the average of the five open-pollinated varieties. In percentage of erect plants all the hybrids were better than the average of the open-pol- linated varieties, the range being 9.2 to 19.4 points. (See page 250.) East North-Central. On the Reddick field 54 of the 55 hybrids had higher general-performance ratings than the average of the five open-pollinated varieties. The five highest and five lowest hybrids were superior to the open-pollinated varieties by 22.2 bushels and 2.4 bushels of sound corn per acre, respectively. The five best hybrids exceeded the average of the open-pollinated varieties by 21.7 points in percent- age of erect plants, while the five poorest hybrids were only 11.8 points better. (See page 252.) West-Central. At Littleton all 55 hybrids had higher general- performance ratings than the five open-pollinated varieties. The five best hybrids were 23.3 bushels of sound corn per acre better than the average of the open-pollinated varieties, while the five poorest hybrids were only 4.3 bushels better. In percentage of erect plants the five best hybrids and the five poorest hybrids were better than the average of the open-pollinated varieties by 19 points and 8.8 points respectively. (See page 255.) East-Central. On the Paxton field all 55 hybrids were better than the average of the five open-pollinated varieties. In yield of sound corn the five best and the five poorest hybrids exceeded the average of BULLETIN No. 450 [January, A striking contrast in hybrids on the Sullivan field Left, a hybrid that had only 48 percent erect stalks as an average of all replications on this field. Right, a hybrid that stood 73 percent erect. Photo- graphs taken September 12, 1938. the five open-pollinated varieties by 20.7 bushels and 1.1 bushels per acre, respectively. The five best hybrids were 13.9 points better and the five poorest hybrids, 10.8 points better than the open-pollinated varieties in percentage of erect plants. (See page 258.) South-Central. On the Sullivan field 26 hybrids had higher general-performance ratings than the open-pollinated varieties, while 29 hybrids had lower ratings. The five best hybrids yielded 10.8 bushels more of sound corn per acre than the average of the open-pollinated varieties. The five poorest hybrids yielded 16.3 bushels less than the average of the five open-pollinated varieties. In percentage of erect plants the five best hybrids were 10.6 points higher than the open- pollinated varieties, while the five poorest hybrids were 18.9 points less. (See page 260.) Southern. On the Shobonier field only two hybrids were better than the average of the five open-pollinated varieties in general-per- formance rating, while 49 hybrids were below that average. Only one hybrid was superior to the best open-pollinated variety. The average of the five best hybrids was 1.3 bushels of sound corn per acre lower 1939] ILLINOIS CORN PERFORMANCE TESTS 1938 241 than the five open-pollinated varieties. The five poorest hybrids aver- aged 17.1 bushels sound corn per acre less than the average of the open-pollinated varieties. In percentage of erect plants, the five best hybrids exceeded the open-pollinated varieties by 9.3 points, while the five poorest hybrids were 8.5 points less than the average of the open- pollinated varieties. (See page 263.) Southeastern. At Albion 26 hybrids had higher general-per- formance ratings than the average of the open-pollinated varieties, while 19 hybrids had lower performance ratings. The leading hybrids on this field were white corn. The five best hybrids exceeded the average of the five open-pollinated varieties by 10.7 bushels of sound corn per acre. On the other hand, the open-pollinated varieties aver- aged 8.4 bushels per acre better than the five poorest hybrids. All the hybrids had slightly higher percentages of erect plants than the open- pollinated varieties. (Sec page 264.) Extreme Southern. On the field near Elizabethtown 28 of the 37 hybrids exceeded the average of the five open-pollinated varieties in general-performance rating. The five best hybrids averaged 11.8 bushels more of sound corn per acre than the five open-pollinated varieties, altho the open-pollinated varieties yielded 1.6 bushels more sound corn to the acre than the five poorest hybrids. In percentage of erect plants there was little difference between the hybrids and the open-pollinated varieties. (See page 265.) THREE-YEAR AND TWO-YEAR SUMMARIES The yield in a single year should never be taken as conclusive evidence of the relative value of a hybrid or variety. The importance of data covering several years can hardly be stressed too much. For seven of the ten fields in the test in 1938 three-year summaries are given. The year 1936 was dry, but both 1937 and 1938 were good corn years. The summaries were computed by using the sectional averages for 1936 and 1937, and data from the individual field in the corresponding section in 1938. For all fields included in the 1938 tests two-year summaries are now available. The two-year summaries for the north-central and the central sections were obtained by averaging the data on entries which were included in 1938 in the same part of the section as in 1937 tho not necessarily in the same field. For example, the results from entries on the Dwight field in 1937 were averaged with those of the same entries on the Reddick field in 1938. Northeastern. All 11 hybrids entered in 1937 and 1938 were superior to the open-pollinated varieties in yield of sound corn and in percentage of erect plants. The best hybrid produced 12.3 bushels more of sound corn per acre than the average of the five open-pollinated 242 BULLETIN No. 450 [January, -16 1927 '28 '29 '30 '32 '33 '34 '35 '36 '37 1938 Differences between yields of hybrids and open-pollinated varieties 1927-1938 The above bars show the amounts by which the yields of the five best hy- brids have exceeded (black) or have fallen below (crosshatch) the five best open-pollinated varieties, in three sections of Illinois. J939] ILLINOIS CORN PERFORMANCE TESTS 1938 243 varieties. In percentage of erect plants the best hybrid was 19.2 points better than the average of the five open-pollinated varieties. In moisture content there was only a slight difference between the hybrids and the open-pollinated varieties. (See pages 247 and 249.) Northern. The 8 hybrids in the test for three years were con- sistently better than the average of the five open-pollinated varieties. Both the highest and the lowest hybrids exceeded the average of the five open-pollinated varieties in sound yield by 16.5 bushels and 10.9 bushels an acre, respectively. In percentage of erect plants the best hybrid was 21.1 points better than the average of the five open-pol- linated varieties, and the poorest hybrid 9.3 points better. In moisture content the hybrids were about the same as the open-pollinated varieties. On the whole the hybrids had a smaller percentage of damaged corn. (See page 249.) West North-Central. All 8 hybrids in the three-year summary were better than the average of the five open-pollinated varieties. In sound yield the best hybrid was 17.4 bushels per acre higher, and the poorest hybrid 8.7 bushels per acre higher. The best hybrid exceeded the average of the open-pollinated varieties by 23.6 points in percentage of erect plants, and the poorest hybrid was superior by 11.6 points. (See page 251.) East North-Central. Nine hybrids had higher general-perform- ance ratings in the three-year summary than the open-pollinated varieties. The leading hybrid yielded 15.8 bushels more sound corn than the average of the five open-pollinated varieties, and the lowest- yielding hybrid gave 6.1 bushels more than that average. In percentage of erect plants, the best hybrid and the poorest hybrid were both superior to the average of the five open-pollinated varieties, exceeding them by 23.9 and 10.6 points respectively. (See page 254.) West-Central. All 7 hybrids that had been grown for three years had higher yields than the average of the five open-pollinated varieties. The best hybrid yielded 16.9 bushels more of sound corn per acre, and the poorest hybrid 8.3 bushels more than the open-pollinated varieties. In percentage of erect plants the best hybrid exceeded the average of the five open-pollinated varieties by 22.7 points, and the poorest hybrid exceeded that average by 10.8 points. (See page 257.) East-Central. Only 5 hybrids, all of which exceeded the average of the five open-pollinated varieties, were in the tests carried for three years. The highest and the lowest hybrid yielded 17.7 bushels and 11 bushels, respectively, more sound corn per acre than the average of the open-pollinated varieties. In percentage of erect plants the best hybrid was 23.6 and the poorest 'hybrid was 13.5 points better than the open-pollinated varieties. (See page 259.) South-Central. The three-year summary includes only two 244 BULLETIN No. 450 [January, hybrids, both of which exceeded the average of the five open-pollinated varieties in sound yield, altho only one exceeded the best open-pol- linated variety. Both hybrids were slightly better than the open- pollinated varieties in percentage of erect plants. These hybrids suffered particularly from the bad weather at the Sullivan field in 1938, while the open-pollinated varieties were able to withstand those adverse conditions more satisfactorily. The two-year summary for 1938 in south-central Illinois lists nearly twice as many hybrids as the two-year summary in 1937. The 15 hybrids listed in 1938 exceeded the average of the five open-pollinated varieties by amounts ranging from 8.8 bushels to .6 bushel of sound corn per acre. In percentage of erect plants the hybrids ranged from 28.3 to 3 points above the average of the open-pollinated varieties. (See page 262.) Southern. The two-year summary for the field in southern Illi- nois presents a different story from that of the other fields. At that field only 4 out of 13 hybrids had higher yields than the average of the five open-pollinated varieties. St. Charles White exceeded the highest yielding hybrid by 4.7 bushels an acre. The five best hybrids averaged 1 bushel less of sound corn per acre than the average of the five open-pollinated varieties. However, in percentage of erect plants, 12 of the 13 hybrids exceeded the average of the five open-pollinated varieties by amounts ranging from 14.6 to .6 points. The data in this summary, as well as the single-year results in 1938, show definitely that the tested commercial hybrids are not well adapted to southern Illinois. (See page 262.) Southeastern. The two-year summary shows results similar to those of the central and north-central sections, except that the differ- ence in favor of the hybrids is not so marked. Eight hybrids exceeded in general performance the average of the five open-pollinated varieties. The best hybrid yielded 7.9 bushels more sound corn per acre than the average of the five open-pollinated varieties, and the poorest hybrid 2.7 bushels less than that average. In percentage of erect plants, the best hybrid was 17.9 points and the poorest hybrid 10.1 points above the average of the open-pollinated varieties. (See page 264.) Extreme Southern. No average of open-pollinated varieties is given in the two-year summary to serve as a check, but six hybrids had higher general-performance ratings than Learning or St. Charles White, and two other hybrids had lower ratings. The best hybrid produced 12.5 bushels more and the poorest hybrid 1.6 bushels less sound corn per acre than Learning. Only one hybrid had a higher percentage of erect plants than St. Charles White, but this difference was only .2 point, while the poorest hybrid in this respect was 22.8 points less than St. Charles White. (See page 265.) 1939] ILLINOIS CORN PERFORMANCE TESTS 1938 245 CONTRIBUTORS OF SEED FOR THE 1938 TESTS Entry Contributor Address Bear Hybrids A. Linn Bear Decatur Beckerle Yellow Dent Elmer Beckerle Columbia Blackhawk Otto Kreutzberg Alhambra Banning White Dent Henry Banning Moweaqua Canterbury Yellow Dent C. E. Canterbury Cantrall Champion White Pearl F. V. Wilson & Son Edgewood Crow Hybrids Crow Hybrid Corn Co Milford DeKalb Hybrids DeKalb Agr. Assoc DeKalb Doubet Yellow Dent E. W. Doubet Hanna City Eckhardt Western Plowman W. G. Eckhardt DeKalb Funk Hybrids Funk Bros. Seed Co Bloomington Gunn Western Plowman DeKalb Agr. Assoc DeKalb Huebsch Murdock L. A. Huebsch & Son Mundelein Hunt White Dent Chester A. Hunt Morris Illini Hybrids Illini Corn Hybrids, Inc Pekin Illinois Hybrids 546, 751 L. L. Lowe Aroma Park Illinois Hybrids 546, 960 Morgan Bros Galva Illinois Hybrid 546 (McKeighan) J. L. McKeighan Yates City Illinois Hybrids 570, 586, 582, 784, 863, 877, 947 Illini Corn Hybrids, Inc Pekin Illinois Hybrids 588, 753 Sibley Estate Sibley Illinois Hybrid 960 Charles Holmes Edelstein Iowa Hybrids 939, 942 Behan and Helfert Sabula, Iowa lowealth Hybrids Michael-Leonard Seed Co. . . .Chicago Krug Krug Bros Minonk Learning H. C. Neville Harrisburg Maland Yellow Dent John Maland Leland Mangelsdorf Hybrid XX 1 Ed. Mangelsdorf & Bros., Inc.Atchison, Kans. McKeighan Yellow Dent J. L. McKeighan Yates City Moews Hybrids B. E. Moews Granville M-L Hybrids 15, 120, 514, 523, 850. ... B. E. Moews Granville M-L Hybrids 14, 20, 30 L. L. Lowe Aroma Park Moore Yellow Dent Illinois Station Urbana Morgan Hybrids Morgan Bros Galva Morgan-Wallace Hybrid 106 Morgan Bros Galva Mountjoy Utility Dent Oscar Mountjoy Atlanta National Hybrids National Hybrid Corn Co. . . . Anamosa, Iowa Pfister-Stiegelmeier Hybrids Lester Pfister El Paso and H. L. Stiegelmeier. . . Normal Pfister-Lazier Hybrids Lester Pfister El Paso and G. A. Lazier Rochelle Pioneer Hi-Breds Pioneer Hi-Bred Corn Co Princeton P.S.M. 370 (Mittendorf) O. F. Mittendorf Lincoln Rice White Dent J. R. Rice Blue Mound Roeschley Yellow Dent Leo Roeschley Graymont Sommer Yellow Dent Geo. Pfiefer, Jr Arcola St. Charles White E. H. Isenberg Kauffman Shuman Golden Beauty Charles Shuman Sullivan Station Yellow Dent Illinois Station Urbana U. S. Hybrid 5 Oscar Mountjoy Atlanta U. S. Hybrids 13, 35, 61 Illini Corn Hybrids, Inc Pekin U. S. Hybrid 35 Charles Holmes Edelstein U. S. Hybrid 44 B. E. Moews Granville U. S. Hybrid 44 Morgan Bros Galva Waddell Utility Dents Elmer Waddell Taylorville Webb Will County Favorite Russell Webb Plainfield Wilson Yellow Dent Edward Wilson Winchester Walter- Pfister Hybrids Arthur Walter Grand Ridge and Lester Pfister . . . . El Paso 246 BULLETIN No. 450 [January, PEDIGREES OF ILLINOIS AND U. S. HYBRIDS Following is a list of Illinois and U. S. hybrids. The performance of those that are starred is shown in this bulletin. Hybrid No. Pedigree Hybrid No. Pedigree 111. 66 (5678 x 5120) (R4 x 317) 111. 110 (38-11 x Kys) (Tr x317) 111. Ill (R4 x Kys) (Tr x 317) 111.115 (5120 x Kys) (Trx 317) 111. 126 (WF9 x 38-1 1) (Tr x 317) 111. 156 (Kys x 38-11) (Tr x R4) 111. 161 (R4 x Tr) (WF9 x 38-1 1) 111. 1 72 (R4 x Hy) (A x 540) 111. 193 (A x 90) (WF9 x K) 111. 200 (WF9 x 38-ll)(K4 x 317) 111. 201 (WF9 x 38-ll)(187 x 317) 111. 202 (WF9 x 38-ll)(Hy x 4-8) 111.203 (WF9x 38-1 l)(289x 317) 111. 204 (WF9 x 38-ll)(Hy x 289) 111. 205 (WF9 x 38-ll)(1 159 x 317) 111. 206 (WF9 x 38-ll)(5120 x 317) 111. 207 (WF9 x 4-8) (187 x 317) 111.208 (B2x 38-11) (K4x317) 111. 209 (187 x 426) (420 x 317) 111.210 (187x426) (Ax 90) 111. 211 (187 x 426) (WF9 x K) 111. 212 (WF9 x 38-11) (4-8 x 187) 111. 213 (4-8 x 38-11) (K4 x 317) 111.214 (4-8x317) (Kys x 38-11) 111.215 (5120x38-11) (187x317) 111. 216 (90 x 317) (187 x 426) 111.217 (4-8x1 87) (90x31 7) 111. 218 (Trx 38-11) (Hy x540) 111. 219 (CCS x CC7) (WF9 x Hv) 111.333 (CC2xCC7)(Ax90) 111. 374 (R4 x Hy) (187 x 317) 111. 384 (WF9 x R4) (A x Hy) 111. 387 (CCS x CC7) (R4 x Hy) 111.391 (AxHy)(Trx317) 111.407 (4-8 xHy) (Trx 317) 111. 427 (5120 x 317) (Hy x 540) 111.432 (5120x4211) (K4x317) 111. 435 (5120 x 5678) (K4 x 317) 111. 444 (5677 x R4) (K4 x 317) 111. 448 (38-11 x Kys) (K4 x 317) 111. 450 (R4 x Kys) (K4 x 317) 111. 467 (Hy x 5120) (R4 x Kys) 111. 468 (Pr x K4) (R4 x Kys) 111. 472 (CCS x CC7) (Hy x 90) 111. 473 (A x 4451) (Hy x 90) 111. 482 (5120 x 421 1) (Hy x Pr) 111. 487 (CCS x CC7) (CC2 x Hy) 111. 496 (CCS x CC7) (90 x 317) 111. 498 (5120 x 4211) (701 x 317) 111.499 (Hyx 5120) (701x317) 111. 538 (5120 x 421 1) (R4 x Tr) 111. 543 (90 x Hy) (R4 x Tr) *I11. 546 (WF9 x Hy) (R4 x Tr) *I11. 570 (A x 90) (Hy x 540) 111. 571 (Tr x 90) (Hy x 540) 111. 579 (Tr x 317) (Hy x 540) *I11. 582 (R4 x 317) (Hy x 540) "III. 586 (4226 x A) (Hy x 540) 111. 587 (5120 x 4211) (Hy x 540) 111. 650 (90 x 4226) (4451 x 5120) 111. 651 (5676 x 90) (4451 x 5120) 111. 653 (4226 x R4) (4451 x 5120) 111. 657 (4226 x A) (4451 x 4211) 111. 659 (Ax CCS) (4451 x4211) 111. 660 (CCS x CC7) (4451 x 4211) 111. 661 (CCS x CC7) (4226 x A) 111. 663 (4451 x 90) (4226 x A) 111.665 (90x4226)(AxK) 111.666 (4451 x 4211) (A x K) 111.677 (Hyx317)(PrxK4) 111. 678 (R4 x Kys) (Pr x K4) 111. 680 (1159 x 317) (Pr x K4) 111. 710 (R4 x Hy) (Tr x 317) *I11. 751 (A x 90) (WF9 x Hy) 111.754 (R4xHy)(90x3l7) 111.762 (AxHy)(R4x317) 111. 772 (R4 x Hy) (1159 x 317) *I11. 784 (Hy x 5120) (K4 x 317) 111.791 (Ax 90) (701x317) 111. 828 (K x WF9) (4451 x A) 111. 847 (WF9 x 4-8) (R4 x Hy) *I11.863 (R4xHy)(K4x3l7) "111. 877 (R4 x Pr) (K4 x 317) 111. 885A (R4 x 38-1 l)(K4x 317) 111.936 (A xHy) (90x317) 111.940 (5120x4211) (1159x317) 111. 944 (Hy x WF9) (R4 x 317) *I11. 947 (R4x Pr) (Trx 317) *I11. 960 (R4 x Hy) (317 x 701) 111. 1001 (5120 x Hy) (R4 x Pr) 111. 1010 (540 x 317) (R4 x Pr) 111. 1058 (5120 x R4) (Hyx 540) 111. 1073 (5120 xHy) (R4x317) 111. 1092 (A x 90) (WF9 x CC1) 111. 1094 (CC2 x 317) (A x 90) *U. S. 5 (R4 x 317) (WF9 x 38-11) *U. S. 13 (Hy x 317) (WF9 x 38-11) U. S. 14 (Hy x 31 7) (WF9 x R4) U. S. 15 (31 7 x Hy) (WF9 x Tr) *U. S. 35 (R4 x Hy) (WF9 x 38-1 1) *U. S. 44 (4-8 x 187-2) (Hy x 540) U.S. 45 (461-3x4-8) (Hyx 540) *U. S. 61 (R4 x 4-8) (Hy x 540) U. S. 65 (Ohio 51 x 4-8) (Hy x 540) 1939} ILLINOIS CORN PERFORMANCE TESTS 1938 247 Table 5. NORTHEASTERN ILLINOIS: Libertyville Acre-yield Damaged Mois- Rating for Total Sound shelled grain at plants Erect Sound General sample harvest plants yield perform. 1938 fa. bu. perct. perci. perct. perct. perct. 1 Pioneer Hi-Bred 349 . 79.9 78.9 1.26 29 96.5 100.7 116.7 112.7 2 'Funk Hybrid G114 . 76.8 76.5 .40 32 99.5 103.9 113 2 110.9 3 'DeKalb Hybrid 404A . 75 3 75.1 .26 29 98 102.3 111.1 108.9 4 'Pioneer Hi-Bred 321 . 74.9 74.5 .48 29 95.5 99.7 110.2 107.6 4 'Funk Hybrid G12 . 74.3 73.8 .66 29 98.5 102.8 109.2 107.6 6 DeKalb Hybrid 421 . 73.4 73.1 .47 28 97 101.3 108.1 106.4 7 Pioneer Hi-Bred 322 . 74.7 72.9 2.44 28 97 101.3 107.8 106.2 8 *Funk Hybrid G27 . 72.0 71.9 .20 28 99.5 103.9 106.4 105.8 9 *Funk Hybrid G26 . 72.9 72.1 1.03 31 98 102.3 106.7 105.6 10 DeKalb Hybrid 202 . 71.8 71.7 .17 27 98 102 3 106.1 105.2 11 Funk Hybrid 30 . 72.0 71.8 .25 30 97 101.3 106.2 105.0 12 DeKalb Hybrid 404 . 71.2 71.1 .09 29 99 103.3 105.2 104.7 13 Pioneer Hi-Bred 322A . 72.3 71.9 .58 29 94.5 98.6 106.4 104.5 14 Funk Hybrid G15 . 70.7 70.3 .60 29 98.5 102.8 104.0 103.7 15 Pioneer Hi-Bred 335 . 71.0 70.1 1.24 29 99 103.3 103.7 103.6 16 lowealth Hybrid AQF . 70.5 69.9 .87 30 99 103.3 103.4 103.4 17 DeKalb Hybrid 493 . 71.1 70.1 1.34 27 96.5 100.7 103.7 103.0 18 Funk Hybrid G8 . 69.7 69.2 .65 28 99.5 103.9 102.4 102.8 19 Pioneer Hi-Bred 315 . 70.3 70.0 .40 29 95 99.2 103 6 102.5 20 lowealth Hybrid 10 . 69.9 69.5 .58 25 95.5 99.7 102.8 102.0 21 Pioneer Hi-Bred 323 . 70.4 70.3 .11 28 91 95.0 104.0 101.8 22 DeKalb Hybrid 467 . 69.1 67.9 1.67 34 99.5 103.9 100.4 101.3 23 'Funk Hybrid G10 . 68.0 67.5 .76 28 99.5 103.9 99.9 100.9 24 Pioneer Hi-Bred 315A . 68.8 67.8 1.45 30 93 97.1 100.3 99.5 25 DeKalb Hybrid 204 . 66.7 66.5 .34 30 97.5 101.8 98.4 99.3 26 DeKalb Hybrid 203 . 66.8 66.7 .17 28 96 100.2 98.7 99.1 27 lowealth Hybrid 12 . 66.1 65.6 .76 28 99 103.3 97.0 98.6 28 'DeKalb Hybrid 206 . 66.0 66.0 26 94.5 98.6 97.6 97.9 28 'DeKalb Hybrid 433 . 66.3 65.9 .56 26 95 99 2 97.5 97.9 30 DeKalb Hybrid 498 . 65.4 65.0 .62 31 97.5 101.8 96.2 97.6 31 DeKalb Hybrid 435 . 64.9 64.9 27 97.5 101.8 96.0 97.5 32 National Hybrid 112 . 64.1 64.0 .20 28 98.5 102.8 94.7 96.7 33 DeKalb Hybrid 250 . 64.3 64.0 .42 25 97 101.3 94.7 96.4 34 DeKalb Hybrid 481 . 63.6 63.6 30 98.5 102.8 94.1 96.3 35 Maland Yellow Dent . 65.5 65.3 .38 29 90.5 94.5 96.6 96.1 36 National Hybrid 110 . 65.3 65.0 .40 24 91.5 95.5 96.2 96.0 37 Webb Will County Favorite . 65.2 65.2 29 86 89.8 96.4 94 8 38 lowealth Hybrid A . 64.0 63.4 .91 24 93 97.1 93.8 94.6 39 National Hybrid 114 . 62.4 62.1 .43 28 96 100.2 91.9 94.0 40 'Funk Hybrid G7 . 60.6 60.5 .10 28 98.5 102.8 89.5 92.8 Average of 5 open-pollinated varieties . . . 62.1 61.8 .58 27.6 87.2 91.0 91.4 91.3 41 Eckhardt Western Plowman . 61.9 61.7 .31 28 86.5 90.3 91.3 91.1 42 Pioneer Hi-Bred 357 . 60.2 59.9 .42 24 94 98.1 88.6 91.0 43 Gunn Western Plowman . 62.0 61.7 .48 27 85.5 89.2 91.3 90.8 44 DeKalb Hybrid 200 . 53.7 53.7 28 96 100.2 79.4 84.6 45 Huebsch-Murdock Yellow Dent . 55.8 55.1 1.32 25 87.5 91.3 81.5 84.0 Average of all entries . 68.0 67.6 .57 28.2 95.8 Average yield of entries grown in 1937 and 1938 1 Funk Hybrid 627 ... . 72.6 72.6 .10 25.2 89.3 104.9 113.8 111.6 2 DeKalb Hybrid 421 . 70.7 70.5 .36 25.6 90.5 106.3 110.5 109.5 3 DeKalb Hybrid 404 . 69.2 69.1 .05 26.7 92.5 108.7 108.3 108.4 4 DeKalb Hybrid 204 . 67.0 66.9 .17 26.6 92.8 109.0 104.9 105.9 6 DeKalb Hybrid 202 . 67.1 66.9 .41 25.5 91.0 106.9 104.9 105.4 6 Funk Hybrid G8 . 67.5 67.2 .50 27.0 88.8 104.3 105.3 105.1 7 DeKalb Hybrid 203 . 66.1 65.9 .34 25.6 89.0 104.6 103.3 103.6 8 Funk Hybrid G30 . 65.1 64.6 .72 27.8 92.0 108.1 101.3 103.0 9 DeKalb Hybrid 433 . 64.4 64.1 .55 24.6 87.0 102.2 100.5 100.9 10 DeKalb Hybrid 493 . 64.8 63.9 1.39 26.3 86.3 101.4 100.2 100.5 11 DeKalb Hybrid 498 . 62.2 61.9 .55 28.5 90.3 106.1 97.0 99.3 12 DeKalb Hybrid 435 . 60.8 60.8 26.5 85.8 100.8 95.3 96.7 13 Gunn Western Plowman . 60.3 60.1 .40 23.9 74.8 87.9 94.2 92.6 14 Maland Yellow Dent . 59.0 58.4 1.06 27.8 75.3 88.5 91.5 90.8 15 Webb Will County Favorite . 58.9 58.1 1.50 28.1 76.0 89.3 91.1 90.7 Average of 5 open-pollinated varieties . . 58.7 58.2 .82 25.6 73.6 86.5 91.2 90.0 16 Huebsch-Murdock Yellow Dent . 56.4 56.1 .67 22.6 70.8 83.2 87.9 86.7 Average of all entries . 64.1 63.8 .56 26.1 85.1 'Less than 5 bushels of seed sampled. (See page 249 for three-year summary.) Less than 4.8 bushels difference between total yields of any two entries in this table is not considered significant. 248 BULLETIN No. 450 [January, Table 6. NORTHERN ILLINOIS: Kings Acre-yield Damaged Mois- Rating for Total Sound shelled sample grain at harvest plants Erect plants Sound yield General perform. 1938 bu. bu. perct. perct. perct. perct. perct. 1 Moews Hybrid 10 97.6 96.1 1.55 18.5 81 107.1 110.3 109.5 2 lowealth Hybrid 15 97.7 97.4 .32 19.1 77 101.8 111.8 109.3 3 'M-L Hybrid 20 (Moews-Lowe) 96.6 95.5 1.09 22.4 81.5 107.8 109.6 109.2 4 *M-L Hybrid 14 (Moews-Lowe) 97.6 96.4 1.26 19.6 77.5 102.5 110.7 108.7 5 'Pfister-Lazier Hybrid 368 96.1 94.9 1.25 17.5 79 104.5 109.0 107.9 6 Morgan Hybrid 52 95.4 95.4 19.4 76.5 101.2 109.5 107.4 7 lowealth Hybrid AQF 93.4 93.0 .40 17.8 81 107.1 106.8 106.9 8 Pioneer Hi-Bred 322 93.1 92.6 .52 17.8 82 108.4 106.3 106.8 9 Pioneer Hi-Bred 308D 93.0 92.3 .76 18.5 80 105.8 106.0 106.0 10 Illinois Hybrid 586 (Illini) 91.7 90.6 1.20 17.5 84 111.1 104.0 105.8 11 *M-L Hybrid 15 (Moews-Lowe) 87.3 87.1 .22 18.8 91.5 121.0 100.0 105.3 12 DeKalb Hybrid 602 97.7 96.5 1.19 19.0 66.5 87.9 110.8 105.1 12 Pfister-Stiegelmeier Hybrid 366 92.3 92.2 .16 19.5 77.5 102.5 105.9 105.1 12 Pioneer Hi-Bred 314 92.8 91.7 1.23 18.0 79 104.5 105.3 105.1 15 National Hybrid 118 92.9 92.6 .32 19.5 76 100.5 106.3 104.9 16 lowealth Hybrid 16 93.3 92.7 .67 19.6 75 99.2 106.4 104.6 17 'M-L Hybrid 30 (Moews-Lowe) 90.0 89.3 .74 19.5 82.5 109.1 102.5 104.2 18 DeKalb Hybrid 467 90.9 90.0 1.01 17.8 79.5 105.1 103.3 103.8 19 DeKalb Hybrid 421 91.7 91.4 .29 18.0 74 97.9 104.9 103.2 20 'Funk Hybrid G104 86.2 85.8 .49 18.3 88.5 117.0 98.5 103.1 21 'Moews Hybrid 12 91.7 91.5 .17 17.8 72 95.2 105.1 102.6 22 Illinois Hybrid 751 (Lowe) 87.3 86.8 .55 20.7 83.5 110.4 99.7 102.4 23 DeKalb Hybrid 622 92.4 91.9 .53 19.0 70 92.6 105.5 102.3 23 'Pioneer Hi-Bred 321 92.0 91.9 .08 17.5 70 92.6 105.5 102.3 25 'National Hybrid 117 88.1 87.6 .61 18.8 81 107.1 100.6 102.2 26 Funk Hybrid G55 90.8 90.3 .52 19.8 73.5 97.2 103.7 102.1 27 'Illini Hybrid 11 88.2 87.2 1.10 20.1 81 107.1 100.1 101.9 28 Pfister-Stiegelmeier Hybrid 260C 90.7 90.7 18.3 71.5 94.6 104.1 101.7 28 National Hybrid 119 91.4 89.5 2.12 19.0 74.5 98.5 102.8 101.7 28 'DeKalb Hybrid 404A 86.8 86.6 .19 17.8 82 108.4 99.4 101.7 31 Pioneer Hi-Bred 311 91.3 89.4 2.10 15.8 74.5 98.5 102.6 101.6 31 Funk Hybrid G8 88.4 88.1 .29 18.3 78 103.2 101.1 101.6 31 Funk Hybrid G19 88.1 87.0 1.25 18.3 80.5 106.5 99.9 101.6 34 lowealth Hybrid 17 89.1 89.0 .16 19.6 74.5 98.5 102.2 101.3 34 Pioneer Hi-Bred 315 90.2 88.6 1.77 18.0 75.5 99.9 101.9 101.3 36 'DeKalb Hybrid 433 88.8 88.8 17.1 71.5 94.6 102.0 100.0 37 Pioneer Hi-Bred 322A 88.8 88.2 .64 20.4 70.5 93.2 101.3 99.3 37 lowealth Hybrid AQ 85.5 85.4 .14 19.6 78 103.2 98.0 99.3 39 Funk Hybrid G68 86.6 86.0 .74 19.8 75 99.2 98.7 98.8 40 DeKalb Hybrid 601 87.2 86.6 .64 18.9 73 96.5 99.4 98.7 41 National Hybrid 117s 84.0 82.7 1.52 18.2 82.5 109.1 94.9 98.5 41 Funk Hybrid G15 81.5 78.9 3.16 18.6 92.5 122.3 90.6 98.5 43 DeKalb Hybrid 600 84.7 84.0 .82 18.9 79 104.5 96.4 98.4 44 Funk Hybrid G30 83.5 81.5 2.39 17.0 85 112.4 93.6 98.3 45 DeKalb Hybrid 498 82.8 82.7 .14 17.5 79.5 105.1 94.9 97.5 46 Pioneer Hi-Bred 315A 90.1 90.0 .10 18.5 59 78.0 103.3 97.0 46 National Hybrid 116 81.9 81.7 .24 18.2 80.5 106.5 93.8 97.0 46 'Funk Hybrid G27 80.9 80.6 .31 17.8 83.5 110.4 92.5 97.0 49 Pioneer Hi-Bred 316 83.7 83.5 .26 19.6 74 97.9 95.9 96.4 50 Morgan-Wallace Hybrid 106 (Morgan) . . 87.3 86.1 1.32 17.5 64.5 85.3 98.9 95.5 51 Funk Hybrid G23 79.1 79.0 .15 19.6 79.5 105.1 90.7 94.3 52 'Iowa Hybrid 939 (Behan & Helfert) 79.6 78.9 .94 19.1 71 93.9 90.6 91.4 53 'Iowa Hybrid 942 (Behan & Helfert) 78.2 76.1 2.71 17.8 65 86.0 87.4 87.1 54 Gunn Western Plowman 76.7 76.3 .56 17.0 64.5 85.3 87.6 87.0 55 Maland Yellow Dent 75.3 74.9 .54 17.8 60 79.4 86.0 84.4 Average of 5 open-pollinated varieties . . . 73.8 72.6 1.76 17.7 58 76.8 83.4 81.8 56 Eckhardt Western Plowman 70.9 68.8 3.01 16.2 60.5 80.0 79.0 79.3 57 Hunt White Dent 72.1 70.6 2.09 19.6 55 72.7 81.1 79.0 58 Webb Will County Favorite 74.1 72.2 2.62 18.2 50.5 66.8 82.9 78.9 Average of all entries 87.9 87.1 .88 18.6 75.6 'Less than 5 bushels of seed sampled. Less than 7 bushels difference between total yields of any two entries in this table is not considered significant. 1939] ILLINOIS CORN PERFORMANCE TESTS 1938 Table 6A. TWO- AND THREE- YEAR SUMMARIES, NORTHERN ILLINOIS: Kings 249 Rank Entry Acre-yield Damage corn in shelled sample i Mois- ture in grain at ] harvest Rating for Total Sound plants Erect plants Sound yield General perform. Average yield of entries grown in 1936, 1937 , 1938 1 8 4 iff 6 7 8 9 10 < 11 DeKalb Hybrid 421 bu. 81.1 79.6 . 78 5 bu. 80.2 78.4 78.0 77.3 75.0 76.8 78.2 74.6 65.2 63.1 63.7 64.4 72.9 perct. 1.34 1.80 .82 3.14 1.68 1.72 1.75 .92 1.08 2.28 2.25 2.36 1.80 perct. 20.3 20.3 20.0 18.3 21.6 22.0 19.7 20.5 19.4 19.1 20.3 20.8 20.2 perct. 71.4 75.5 71.0 72.8 77.8 72.7 66.0 74.5 60.9 58.6 56.7 52.9 67.6 perct. 105.7 111.7 105.1 107.7 115.1 107.6 97.7 110.3 90.1 86.7 83.9 78.3 perct. 110.0 107.5 107.0 106.0 102.9 105.3 107.3 102.3 89.4 86.5 87.4 88.3 108.9 108.6 106.5 106.4 106.0 105.9 104.9 104.3 89.6 86.6 86.5 85.8 "Pfister-Lazier Hybrid 368 DeKalb Hybrid 433 Pioneer Hi-Bred 311 . 79.5 Illinois Hybrid 751 . 76.1 iPfister-Stiegelmeier Hybrid 366 77.8 79.5 . 75.8 Pioneer Hi-Bred 315 Illinois Hybrid 586 Gunn Western Plowman . 65 8 Eckhardt Western Plowman . 64.4 k Average of 5 open-pollinated varieties . . Webb Will County Favorite . 64.9 . 65.8 74 1 Average yield of entries grown in 1937 and 1938 1 2 8 4 5 6 7 8 9 10 11 12 13 14 U 16 17 18 19 20 21 22 23 24 25 < M 27 Moews Hybrid 10 . 92.4 91.7 94.2 89.7 89.4 88.8 83.8 89.6 90.7 87.5 88.9 90.1 87.2 88.1 88.5 89.7 83.6 81.1 81.1 84.5 86.5 87.6 84.1 83.2 76.8 75.3 72.4 68.7 70.2 84.8 .78 .36 .31 .26 .63 .37 .70 .83 .16 .08 .22 .60 1.40 .13 .90 .61 .26 1.20 .14 .32 .26 .33 .60 .31 .41 1.07 2.04 1.41 .58 22.1 19.0 21.1 20.5 19.7 20.6 20.2 19.9 19.1 21.4 21.1 19.0 17.9 19.7 19.7 22.5 22.1 18.8 20.4 20.0 22.7 21.2 23.6 18.4 19.9 20.2 20.1 21.3 21.2 67.0 61.5 68.5 68.5 65.8 73.8 59.5 56 5 62.8 59.3 56.0 60.5 57.3 54.3 51.8 64.0 68.8 67.0 59.3 54.5 50.3 55.0 55.0 51.3 48.0 47.0 48.8 41.3 58.3 114.9 105.5 117.5 117.5 112.8 126.6 102.0 96.9 107.6 101.6 96.0 103.8 98.2 93.0 88.7 109.8 117.9 114.9 101.6 93.5 86.2 94.3 94.3 87.9 82.3 80.6 83.6 70.7 108.1 111.1 105.8 105.4 104.7 98.8 105.7 107.0 103.2 104.8 106.2 102.8 103.9 104.4 105.8 98.6 95.6 95.6 99.6 102.0 103.3 99.2 98.1 90.6 88.8 85.4 81.0 82.8 109.8 109.7 108.7 108.4 106.7 105.8 104.8 104.5 104.3 104.0 103.7 103.1 102.5 101.6 101.5 101.4 101.2 100.4 100.1 99.9 99.0 98.0 97.2 89.9 87.2 84.2 81.7 79.8 Pioneer Hi-Bred 322 . 94.5 National Hybrid 117 . 89.9 lowealth Hybrid AQ . 89 6 Funk Hybrid G19 . 89.3 Illinois Hybrid 751 84 2 Pfister-Lazier Hybrid 368 . 90 2 Pioneer Hi-Bred 314 . 91.5 Funk Hybrid G27 87 6 Pfister-Stiegelmeier Hybrid 366 . 89 DeKalb Hybrid 421 . 90.3 Illinois Hybrid 586 87 7 Pioneer Hi-Bred 311 . 89 4 DeKalb Hybrid 433 88 6 Pioneer Hi-Bred 315 90 5 Pioneer Hi-Bred 316 . 84.1 Funk Hybrid G23 . 81.3 Funk Hybrid G30 . 82 1 DeKalb Hybrid 498 . 84.6 DeKalb Hybrid 601 86 8 Funk Hybrid G55 . 87 9 Funk Hybrid G8 . 84.4 DeKalb Hybrid 600 83 7 Gunn Western Plowman . 77 Maland Yellow Dent 75 6 Average of 5 open-pollinated varieties . . Eckhardt Western Plowman . 73.1 . 70.1 Webb Will County Favorite 71 2 85 7 Entered as Illinois hybrids in 1936. Table 5A. THREE- YEAR SUMMARY, NORTHEASTERN ILLINOIS: Libertyville, 1936, 1937, 1938 Rank Entry Acre-yield Damagec corn in shelled sample I Mois- ture in grain at harvest Erect plants Rating for Total Sound Erect plants Sound yield General perform. 1 . 2 8 4 1 6 7 8 DeKalb Hybrid 421 70 .1 .5 ,0 2 ,7 .9 .2 6 6 ,8 69.8 66.3 63.7 64.0 63.1 63.2 56.7 54.0 48.1 61.9 .47 .33 .42 .43 1.08 1.09 .90 1.18 1.01 .72 29.0 30.5 28.0 28.6 32.4 29.0 28.6 29.2 27.3 29.2 85.5 88.8 84.2 82.5 83.5 82.2 66.8 64.9 63.2 79.6 107.4 111.6 105.8 103.6 104.9 103.3 83.9 81.5 79.4 112 107 102 103 101 102 91 87 77 .8 .1 ,9 ,4 9 ,1 .6 2 7 111.5 108.2 103.6 103.5 102.7 102.4 89.7 85.8 78.1 DeKalb Hybrid 404 66 64 64 63 63 DeKalb Hybrid 203 DeKalb Hybrid 433 Funk Hybrid G30 DeKalb Hybrid 493 57 . 54, 48 62 Average of 5 open-pollinated varieties . . Huebsch-Murdock Yellow Dent Average of all entries 250 BULLETIN No. 450 [January, Table 7. WEST NORTH-CENTRAL ILLINOIS: Cambridge Rank Entry Acre-yield Damaged Mois- Rating for corn in ture in Erect Sound shelled grain at plants Erect Sound General sample harvest plants yield perform. Total 1938 bit. bu. perct. perct. perct. 1 *M-L Hybrid 514 (Moews-Lowe) 98.6 98.5 .06 15.1 72 2 *M-L Hybrid 523 (Moews-Lowe) 99.7 97.4 2.32 15.6 72.5 3 *U. S. Hybrid 44 (Morgan) 102.4 101.1 1.31 15.2 62 4 U. S. Hybrid 44 (Moews) 99.6 99.4 .21 15.3 61.5 5 DeKalb Hybrid 827 92.5 92.4 .06 15.7 75.5 6 *M-L Hybrid 120 (Moews-Lowe) 94.1 93.5 .61 15.6 72.5 7 *U. S. Hybrid 35 (Holmes) 92.2 92.0 .24 15.1 74 8 Pioneer Hi-Bred 307 100.4 98.3 2.14 15.7 58.5 9 Funk Hybrid G63 99.2 98.8 .36 14.6 56.5 10 Pioneer Hi-Bred 313 103.8 103.8 18.3 45 10 Illini Hybrid 122 97.5 95.6 2.00 15.4 62.5 12 *DeKalb Hybrid 825 90.2 90.2 .01 17.5 73.5 13 Pfister-Stiegelmeier Hybrid 365 98.9 98.7 .16 15.6 54.5 14 'Illim Hybrid 111 90.9 90.1 .83 16.2 72.5 15 Pioneer Hi-Bred 318 92.5 92.0 .52 14.4 68 16 DeKalb Hybrid 870 95.4 94.6 .87 15.0 61 17 Pioneer Hi-Bred 308D 96.3 95.7 .66 14.4 58.5 17 Morgan Hybrid 52 89.8 88.6 1.37 14.7 73.5 19 Funk Hybrid G53 89.3 88.0 1.43 15.7 74 20 Pfister-Stiegelmeier Hybrid 360 91.8 91.4 .47 16.4 66.5 21 DeKalb Hybrid 817 91.4 91.2 .22 16.9 66 21 National Hybrid 119a 90.3 90.1 .28 15.5 68.5 21 Moews Hybrid 10 89.7 88.2 1.62 14.4 72.5 24 Funk Hybrid G212 93.8 93.3 .50 15.9 61.5 25 Funk Hybrid G68 88.6 88.5 .06 14.4 71.5 26 Pfister-Stiegelmeier Hybrid 366 91.5 91.5 15.7 64 27 *M-L Hybrid 30 (Moews-Lowe) 91.4 90.9 .55 15.9 65 28 Pioneer Hi-Bred 314 95.0 93.1 1.99 14.7 60 29 tUlinois Hybrid 751 (Lowe) 86.5 86.5 15.8 73 30 *Tiemann Tested Hybrid 612 91.8 91.4 .46 16.4 61.5 30 Pioneer Hi-Bred 317 90.6 90.2 .44 15.9 64 32 lowealth Hybrid 15 90.9 90.5 .41 14.9 62.5 33 *M-L Hybrid 14 (Moews-Lowe) 93.6 93.4 .18 15.1 56 34 Pfister-Stiegelmeier Hybrid 360A 90.3 90.3 15.4 62 35 Funk Hybrid G55 90.9 90.9 14.9 60.5 36 Pfister-Stiegelmeier Hybrid 260 85 . 5 85 . 3 .22 15 . 4 69 37 Illinois Hybrid 960 (Morgan) 89.6 89.2 .40 14.7 59.5 38 Illinois Hybrid 960 (Holmes) 89.6 88.7 1.02 16.0 59.5 38 National Hybrid 117s 84.1 84.1 14.2 69 40 DeKalb Hybrid 600 86.8 86.0 .90 15.8 64.5 40 lowealth Hybrid CI 85.1 84.5 .73 15.9 67.5 42 Funk Hybrid G32 86.8 86.8 16.4 62.5 43 Illinois Hybrid 546 (Morgan) 85.1 85.0 .13 17.7 65 44 'Pioneer Hi-Bred 312 87.4 87.2 .26 15.9 58.5 44 DeKalb Hybrid 690 86.0 85.8 .29 14.9 61.5 46 DeKalb Hybrid 652 81.5 81.2 .40 15.7 70 47 Illinois Hybrid 546 (Lowe) 82.9 81.3 1.90 16.9 68.5 48 lowealth Hybrid 17 89.1 87.3 2.06 15.9 55 49 Funk Hybrid G33 89.3 89.1 .26 15.1 51 50 lowealth Hybrid AQ 82.1 82.0 .17 13.5 64 51 Tiemann Tested Hybrid 53 90.7 90.1 .62 17.0 45 52 Funk Hybrid G60 84.3 84.3 17.0 57 53 National Hybrid 116 78.9 78.0 1.11 15.3 64.5 54 Walter-Pfister Hybrid 274 73.0 72.9 .20 13.9 72 55 Roeschley Yellow Dent 84.2 83.9 .34 15.7 48 56 McKeighan Yellow Dent 80.6 80.4 .29 17.4 56 57 National Hybrid 119 81.7 79.5 2.69 15.7 54 Average of 5 open-pollinated varieties ... 78.8 78.5 .37 16.5 49.3 58 Krug 76.1 75.8 .34 16.2 51 59 Doubet Yellow Dent 75.0 74.9 .20 17.2 51 60 Hunt White Dent 77.9 77.4 .66 16.0 41.5 Average of all entries 89.6 89.0 .63 17.6 62.8 Less than 5 bushels of seed sampled, f Average of 9 plots instead of 10. Less than 5.6 bushels difference between total yields of any two entries in this table is not considered significant. perct. 114.7 115.5 98.8 98.0 120.3 115.5 117.9 93.2 90.0 71.7 99.5 117.1 86.8 115.5 108.3 97.2 93.2 117.1 117.9 105.9 105.1 109.1 115.5 98.0 113.9 101.9 103.5 95.6 116.3 98.0 101.9 99.5 89.2 98.8 96.4 109.9 94.8 94.8 109.9 102.7 107.5 99.5 103.5 93.2 98.0 111.5 109.1 87.6 81.2 101.9 71.7 90.8 102.7 114.7 76.5 87.6 86.0 78.5 81.2 81.2 66.1 perct. 110.7 109.4 113.6 111.7 103.8 105.0 103.4 110.4 111.0 116.6 107.4 101.3 110.9 101.2 103.4 106.3 107.5 99.5 98.9 102.7 102.5 101.2 99.1 104.8 99.4 102.8 102.1 104.6 97.2 102.7 101.3 101.7 104.9 101.4 102.1 95.8 100.2 99.6 94.5 96.6 94.9 97.5 95.5 98.0 96.4 91.2 91.3 98.1 100.1 92.1 101.2 94.7 87.6 81.9 94.3 90.3 89.3 88.2 85.2 84.1 87.0 111.7 110.9 109.9 108.3 107.9 107.6 107.0 106.1 105.8 105.4 105.4 105.3 104.9 104.8 104.6 104.0 103.9 103.9 103.7 103.5 103.2 103.2 103.2 103.1 103.0 102.6 102.5 102.4 102.0 101.5 101.5 101.2 101.0 100.8 100.7 99.3 98.9 98.4 98.4 98.1 98.1 98.0 97.5 96.8 96.8 96.3 95.8 95.5 95.4 94.6 93.8 93.7 91.4 90.1 89.9 89.6 88.5 85.8 84.2 83.4 81.8 1939] ILLINOIS CORN PERFORMANCE TESTS 1938 251 Table 7A. TWO- AND THREE- YEAR SUMMARIES, WEST NORTH-CENTRAL: Cambridge Rank Entry Acre-yield Damage corn in shelled sample d Mois- ture in Erect grain at plants harvest Rating for Total Sound Erect plants Sound yield General perform. Average yield of entries grown in 1936, 1937 . 1938 1 S 8 4 f 7 8 9 10 1 V. S. Hybrid 44. . . bu. 84.4 81.2 79.4 79.0 79.4 80.3 76.1 75.2 68.4 69.0 66.9 76.3 bu. 83.6 80.6 78.6 78.5 79.1 79.9 75.2 74.9 67.8 68.4 66.2 75.7 perct. .95 .89 1.00 .74 .50 .68 1.55 .45 1.18 1.13 1.40 .95 perct. 17.1 17.0 16.5 17.5 17.0 17.3 17.8 16.9 19.2 18.2 18.4 17.5 perct. 68.9 70.6 74.8 70.0 68.2 64.1 76.1 73.3 57.1 53.1 52.5 66.2 perct. 104.1 106.6 113.0 105.7 103.0 96.8 115.0 110.7 86.3 80.2 79.3 perct. 110.4 106.5 103.8 103.7 104.5 105.5 99.3 98.9 89.6 90.4 87.5 108.8 106.5 106.1 104.2 104.1 103.3 103.2 101.9 88.8 87.9 85.5 Funk Hybrid G212... . . Moews Hybrid 10 'Pfister-Stiegelmeier Hybrid 360 'Pfister-Stiegelmeier Hybrid 366 Illinois Hybrid 960 Illinois Hybrid 546 Illinois Hybrid 751 McKeighan Yellow Dent Roescmey Yellow Dent Average of 5 open-pollinated varieties . . . Average yield of entries grown in 1937 and 1938 1 1 8 4 8 7 ft ft 10 11 12 13 14 15 16 17 18 19 20 21 22 23 1 24 IB Pioneer Hi-Bred 307 113.3 103.6 106.6 111.2 108.6 108.4 107.1 103.1 100.4 105.1 108.4 104.8 100.4 104.7 103.6 104.8 101.9 103.9 101.8 105.3 99.7 92.3 94.5 91.7 91.9 88.4 102.5 89.4 111.9 103.3 105.7 110.9 108.3 108.4 106.4 103.0 99.8 104.5 107.8 104.7 100.4 104.2 102.4 104.5 101.9 103.6 101.7 105.0 99.6 92.1 93.9 91.3 91.4 88.0 102.1 88.8 1.36 .24 .92 .23 .26 .78 .15 .52 .51 .63 .07 .47 1.21 .27 .28 .10 .30 .14 .27 .62 .48 .41 .49 .47 .67 17.0 18.9 15.9 16.3 17.1 16.9 16.6 17.5 15.4 17.1 17.1 17.8 16.7 17.6 16.5 17.5 17.8 17.9 16.5 16.8 17.4 19.4 17.9 18.5 17.8 18.2 18.5 16.5 60.8 74.8 68.8 56.3 59.8 59.0 60.8 65.5 71.0 62.5 54.5 59.3 65.5 55.3 57.5 52.3 55.0 50.3 52.8 46.0 52.5 45.0 36.5 39.2 38.0 40.5 55.4 64.8 109.8 135.1 124.3 101.7 108.0 106.6 109.8 118.3 128.2 112.9 98.4 107.1 118.3 99.9 103.9 94.5 99.3 90.9 95.4 83.1 94.8 81.3 65.9 70.8 68.6 73.2 109.6 101.2 103.5 108.6 106.1 106.2 104.2 100.9 97.7 102.3 105.6 102.5 98.3 102.1 100.3 102.3 99.8 101.5 99.6 102.8 97.5 90.2 92.0 89.4 89.5 86.2 109.7 109.7 108.7 106.9 106.6 106.3 105.6 105.3 105.3 105.0 103.8 103.7 103.3 101.6 101.2 100.4 99.7 98.9 98.6 97.9 96.8 88.0 85.5 84.8 84.3 83.0 DeKalb Hybrid 825 Moews Hybrid 10 U. S. Hybrid 44 (Moews) Funk Hybrid G212 Pfister-Stiegelmeier Hybrid 3 60 A Morgan Hybrid 52 Illinois Hybrid 546 (Morgan) lowealth Hybrid AQ Pioneer Hi-Bred 317 DeKalb Hybrid 870 Funk Hybrid G32 Illinois Hybrid 751 Pfister-Stiegelmeier Hybrid 360 .... Pioneer Hi-Bred 314 Illinois Hybrid 960 (Morgan) Pfister-Stiegelmeier Hybrid 366 Pioneer Hi-Bred 312 Funk Hybrid G55 Funk Hybrid G33 Funk Hybrid G60 McKeighan Yellow Dent Roescbley Yellow Dent 1 Average of 5 open-pollinated varieties . . . Krug Doubet Yellow Dent 'DeKalb Hybrid 600 Entered as Illinois hybrids in 1936. 'Entered in Henry field in 1937. 252 BULLETIN No. 450 [January, Table 8. EAST NORTH-CENTRAL ILLINOIS: Reddick Acre-yield Damaged Mois- Rating for Total Sound shelled grain at plants Erect Sound General sample harvest plants yield perform. 1938 bu. bu. perct. perct. perct. perct. perct. 1 *M-L Hybrid 514 (Moews-Lowe) 78.2 77.9 .39 12.6 83 117.0 121.1 120.1 2 M-L Hybrid 20 (Moews-Lowe) 76.2 75.5 .95 14.6 82 115.6 117.3 116.9 3 Pioneer Hi-Bred 313 77.9 76.6 1.62 13.5 75 105.7 119.1 115.8 4 *M-L Hybrid 14 (Moews-Lowe) 76.1 74.8 1.76 13.7 75.5 106.5 116.3 113.9 5 Pioneer Hi-Bred 307 73.4 73.1 .47 13.3 74 104.3 113.6 111.3 6 lowealth Hybrid 15 71.7 70.9 1.10 12.6 81 114.2 110.2 111.2 7 Illinois Hybrid 960 (Holmes) 72.7 70.3 3.24 13.2 78 110.0 109.3 109.5 8 'Pioneer Hi-Bred 312 70.3 69.7 .79 13.5 77.5 109.3 108.3 108.6 9 Pfister-Stiegelmeier Hybrid 380 71.7 71.1 .82 15.3 72.5 102.2 110.5 108.4 10 *M-L Hybrid 523 (Moews-Lowe) 69.8 69.8 .04 13.9 73.5 103.6 108.5 107.3 11 DeKalb Hybrid 821B 70.0 69.5 .73 14.6 72.5 102.2 108.0 106.6 12 Funk Hybrid G32 67.6 67.3 .49 13.5 79.5 112.1 104.6 106.5 13 Funk Hybrid G212 71.2 68.5 3.79 12.4 75 105.7 106.5 106.3 14 Moews Hybrid 10 69.2 68.7 .73 12.4 72.5 102.2 106.8 105.7 15 DeKalb Hybrid 606 71.9 70.9 1.44 14.3 65 91.6 110.2 105.6 16 Illinois Hybrid 751 (Lowe) 68.9 68.6 .41 13.5 72.5 102.2 106.6 105.5 17 U. S. Hybrid 44 (Moews) 67.5 67.1 .54 13.7 73.5 103.6 104.3 104.1 18 lowealth Hybrid CI 66.2 65.4 1.24 13.7 78.5 110.7 101.6 103.9 19 Pfister-Stiegelmeier Hybrid 365 70.5 68.5 2.90 13.2 67.5 95.2 106.5 103.7 20 Illinois Hybrid 582 (Illini) 68.9 68.7 .32 13.2 66.5 93.8 106.8 103.6 21 Pioneer Hi-Bred 308D 68.4 66.5 2.75 12.6 73 102.9 103.4 103.3 22 DeKalb Hybrid 628 67.2 67.2 14.6 70.5 99.4 104.4 103.2 23 Funk Hybrid G33 67.4 67.2 .26 14.5 69.5 98.0 104.4 102.8 24 *Crow Hybrid 602 68.6 67.4 1.68 12.6 64.5 90.9 104.8 101.3 24 DeKalb Hybrid 639 67.6 66.8 1.19 14.3 66.5 93.8 103.8 101.3 26 'Funk Hybrid G532W 70.2 69.8 .52 11.9 56 79.0 108.5 101.1 27 Morgan Hybrid 52 65.3 64.5 1.18 13.0 73 102.9 100.2 100.9 28 Pfister-Stiegebneier Hybrid 160 64.5 64.0 .78 14.6 73.5 103.6 99.5 100.5 29 *Iowealth Hybrid 16A 65.5 62.9 4.04 11.7 76.5 107.9 97.8 100.3 29 National Hybrid 117j 62.7 61.7 1.57 11'. 5 80.5 113.5 95.9 100.3 29 Funk Hybrid G66 61.9 61.7 .30 12.9 80.5 113.5 95.9 100.3 32 U. S. Hybrid 61 (Illini) 67.1 64.9 3.24 11.5 69.5 98.0 100.9 100.2 33 Pioneer Hi-Bred 314 65.8 63.5 3.46 12.4 74 104.3 98.7 100.1 34 DeKalb Hybrid 823 64.5 63.8 1.06 13.5 72.5 102.2 99.2 100.0 35 Funk Hybrid G55 65.7 65.7 12.4 66 93.1 102.1 99.9 36 *U. S. Hybrid 35 (Holmes) 63.5 61.7 2.84 14.9 79 111.4 95.9 99.8 37 111. Hybrid 588 (Sibley Estate) 65.2 63.4 2.73 14.6 71.5 100.8 98.5 99.1 37 Funk Hybrid G74 62.2 61.9 .48 14.6 76.5 107.9 96.2 99.1 39 "Tiemann Tested Hybrid 612 65.1 63.4 2.68 14.6 70.5 99.4 98.5 98.7 40 'Pioneer Hi-Bred 318 64.5 62.4 3.28 12.2 73 102.9 97.0 98.5 41 *Funk Hybrid G537W 61.9 61.9 14.6 73 102.9 96.2 97.9 41 111. Hybrid 753 (Sibley Estate) 61.6 61.3 .54 14.1 75 105.7 95.3 97.9 43 Pfister-Stiegelmeier Hybrid 90 63.7 62.6 1.72 14.1 69 97.3 97.3 97.3 44 Pioneer Hi-Bred 317 62.2 61.9 .42 13.2 71 100.1 96.2 97.2 45 'Grow Hybrid 402 63.4 63.2 .38 13.5 65 91.6 98.2 96.6 46 Illinois Hybrid 570 (Lowe) 62.9 62.2 1.18 13.2 67.5 95.2 96.7 96.3 47 National Hybrid 118 61.5 60.9 .98 13.7 69.5 98.0 94.7 95.5 48'fMoews Hybrid 12 62.0 61.2 1.37 12.6 65.5 92.4 95.1 94.4 49 \Valter-Pfister Hybrid 374 57.0 56.8 .43 12.2 78.5 110.7 88.3 93.9 50 National Hybrid 120 59.7 59.5 .38 12.8 69 97.3 92.5 93.7 51 lowealth Hybrid AQ 61.1 60.8 .57 11.6 64 90.2 94.5 93.4 52 Illinois Hybrid 546 (Lowe) 60.4 57.5 4.83 14.3 74.5 105.0 89.4 93.3 53 Morgan- Wallace Hybrid 106 (Morgan) . . 62.3 59.3 4.89 13.0 65.5 92.4 92.2 92.3 54 Roeschley Yellow Dent 59.9 59.6 .53 16.0 57.5 81.1 92.6 89.7 55 McKeighan Yellow Dent 53.6 53.4 .43 17.4 64.5 90.9 83.0 85.0 56 'DeKalb Hybrid 922 (W) 51.4 51.0 .87 18.7 71.5 100.8 79.3 84.7 57 Krug 56.0 55.8 .35 15.8 49.5 69.8 86.7 82.5 Average of 5 open-pollinated varieties . . . 58 'DeKalb Hybrid 702(W) 54.2 50.7 53.4 50.3 1.67 .70 15.6 17.6 56.2 64.5 79.2 90.9 83.0 78.2 82.0 81.4 59 Hunt White Dent 52.5 50.5 3.79 14.7 50 70.5 78.5 76.5 59 Doubet Yellow Dent 49.2 47.6 3.27 14.3 59.5 83.9 74.0 76.5 Average of all entries 65.3 64.3 1.42 13.7 70.9 'Less than 5 bushels of seed sampled. tAverage of 9 plots instead of 10. Less than 4.5 bushels difference between total yields of any two entries in this table is not considered significant. 1939] ILLINOIS CORN PERFORMANCE TESTS 1938 253 Table 8A. RESISTANCE TO LODGING: E. North-Central, Reddick Lodging caused by feeding of southern corn rootworm 1 Rank Entry Plants leaning Plants leaning 30 degrees more than or more 45 degrees Resistance rating com- pared with average 2 1938 perct. 1 Funk Hybrid G32 20.1 2 M-L Hybrid 514 (Moews-Lowe) 19.8 3 lowealth Hybrid 15 17.5 4 Funk Hybrid G66 22.9 5 M-L Hybrid 14 (Moews-Lowe) 24.8 6 Illinois Hybrid 960 (Holmes) 21.6 7 DeKalb Hybrid 821B 23.3 8 M-L Hybrid 20 (Moews-Lowe) 27.5 9 DeKalb Hybrid 823 27.9 10 U. S. Hybrid 35 (Holmes) 29.6 11 Pioneer Hi-Bred 312 28.7 12 National Hybrid 117a 28.2 13 Pioneer Hi-Bred 308D . 31.2 14 M-L Hybrid 523 (Moews-Lowe) 29.1 15 Moews Hybrid 10 35.2 16 Walter-Pfister Hybrid 374 . 35.1 17 Illinois Hybrid 753 (Sibley) 32.6 18 Tiemann Tested Hybrid 612 38.0 19 Illinois Hybrid 546 (Lowe) 37.0 20 Funk Hybrid G537W 38.0 21 Morgan Hybrid 52 36.6 22 Pioneer Hi-Bred 317 36.9 23 lowealth Hybrid 16A 392 24 lowealth Hybrid CI 38.8 25 Pioneer Hi-Bred 313 46.2 26 Funk Hybrid G212 . 40 9 27 Illinois Hybrid 582 (Illini) 38. 1 28 Pioneer Hi-Bred 318 41.9 29 DeKalb Hybrid 922 (W) 45.8 30 Pfister-Stiegelmeier Hybrid 90 40.8 31 Pfister-Stiegelmeier Hybrid 380 47.1 32 Pioneer Hi-Bred 307 468 33 Funk Hybrid G74 49.8 34 DeKalb Hybrid 639 440 35 Pioneer Hi-Bred 314 44.0 36 Pfister-Stiegelmeier Hybrid 160 43.9 37 Illinois Hybrid 751 (Lowe) 489 38 National Hybrid 120 46.4 39 Illinois Hybrid 588 (Sibley) 52.3 40 DeKalb Hybrid 628 . 50.5 41 U. S. Hybrid 44 (Moews) . 56.0 42 Crow Hybrid 602 540 43 Morgan-Wallace Hybrid 106 55.7 44 Moews Hybrid 12 49 4 45 Funk Hybrid G33 58.2 46 Illinois Hybrid 570 (Lowe) . 56.2 47 Pfister-Stiegelmeier Hybrid 365 61.5 48 Funk Hybrid G55 . 60.7 49 National Hybrid 118 . 52.3 50 DeKalb Hybrid 606 . 64.4 51 U. S. Hybrid 61 (Illini) . 57.5 52 Crow Hybrid 402 66.0 53 lowealth Hybrid AQ . 51.4 54 Funk Hybrid G532W 62.6 55 Krug 66.2 56 McKeighan Yellow Dent 70.5 57 DeKalb Hybrid 702 (W) . 75.3 58 Doubet Yellow Dent 79.3 59 Roeschley Yellow Dent 81 8 60 Hunt White Dent 89.3 Average of all entries . 45 . 2 perct. .6 2.1 3.3 1.3 1.3 3.0 3.0 1.6 2.0 2.1 2.9 3.6 3.1 4.5 2.2 2.7 4.6 3.9 4.6 4.5 5.4 6.3 5.3 5.5 2.1 4.8 6.3 5.3 4.9 7.8 5.1 5.2 4.2 7.5 7.9 8.8 6.7 8.5 6.0 7.3 5.3 7.5 7.2 10.5 7.6 9.0 8.4 9.3 14 5 10.3 14.7 12.7 21.8 16.8 15.8 15.9 15.6 14.3 28.3 45.8 7.8 284 253 251 238 222 220 207 197 190 180 176 172 163 159 154 150 145 133 132 129 128 123 122 122 121 120 120 116 109 108 106 106 104 103 102 99 97 96 94 93 91 88 87 82 78 77 75 72 70 67 64 63 62 59 57 56 44 34 100 'Southern corn rootworm, Diabrotica duodecimpundata Fab. See also text, pages 231 and 232. 'Average resistance of all entries = 100. High rating indicates increased standing ability. 254 BULLETIN No. 450 [January, Table 8B. TWO- AND THREE- YEAR SUMMARIES, EAST NORTH-CENTRAL: Reddick Rank Entry Acre-yield Damaged Mois- corn in ture in shelled grain at sample harvest Erect plants Rating for Total Sound Erect plants Sound yield General perform. Average yield of entries grown in 1936, 1937, 1938 1 2 3 4 5 6 7 8 9 10 11 1 Funk Hybrid G212 6u. 73 .7 74.7 72.5 73.2 73.4 71.8 69.3 68.3 64.6 60.9 59.4 58.7 68.4 bu. 72.3 73.6 72.1 72.6 72.9 70.7 68.9 66 7 63.9 60.3 58.8 57.8 67.6 perct. 1.99 1.53 .70 .88 .74 1.68 .58 2.82 1.07 1.19 1.23 1.84 1.35 perct. 15.9 16.5 15.9 16.6 16.5 15 4 16.2 16.8 15.9 18.3 19.2 18.1 16.8 perct. 75.1 70.2 74.8 72.8 66.8 70.7 73.1 78.7 65.4 56.3 60.3 54.8 68.3 perct. 110.0 102.9 109.6 106.7 97.9 103.6 107.1 115.3 95.8 82.5 88.4 80.3 perct. 107.0 109.0 106.7 107.5 107.9 104.7 102.0 98.7 94.6 89.3 87.0 85.6 107.8 107.5 107.4 107.3 105.4 104.4 103.3 102.9 94.9 87.6 87.4 84.3 Illinois Hybrid 960 Moews Hybrid 10 . U. S. Hybrid 44 (Moews) Illinois Hybrid 582.. . U. S. Hybrid 61 Illinois Hybrid 751 Illinois Hybrid 546 Illinois Hybrid 570 McKeighan Yellow Dent I Average of 5 open-pollinated varieties . . . Average yield of entries grown in 1937 and 1938 1 2 3 3 5 6 7 8 9 10 11 12 12 14 15 15 17 18 19 20 21 22 23 24 25 26 27 28 29 4 30 Pioneer Hi-Bred 307. . . 73.6 70.9 70.5 70.0 68.0 69.4 69.8 68.0 67.3 69.1 70.0 69.7 68.4 68.1 68.2 67.5 66.4 65.0 64.7 65.0 66.0 66.8 65.1 66.9 63.8 61.1 61.0 56.9 60.6 57.1 54.1 66.4 73.3 69.5 70 1 69.8 67.9 69.1 68.6 67 8 67.0 67.9 69.1 69.2 68.1 67.8 68.0 67.4 65.0 64.6 64.5 64.8 65.8 66.8 63.9 66.4 62.3 60.9 60.6 56.8 60.5 56.7 53.1 65.6 .35 1.99 .42 .28 .25 .41 1.82 .37 .49 1.68 1.37 .73 .40 .42 .21 .13 2.42 .59 .27 .29 .27 1.87 .72 2.45 .39 .68 .22 .18 .93 1.86 .79 13.8 13.8 14.7 14.6 14.7 15.5 12.9 13.9 14.0 14.7 16.1 15.0 14.9 15.4 14.4 14 9 15.5 13.9 15.4 13.0 14.7 13.9 14.1 15.0 14.4 16.9 14.0 18.1 17.1 17.0 16.3 14.9 75.0 75.0 72.3 73.3 77.3 71.3 71.3 71.3 73.8 70.5 66.3 64.8 68.3 68.8 67.8 69.8 75.8 76.5 74.5 73.0 69.5 66.0 72.5 63.5 66.3 64.8 57.3 60.3 43.8 54.1 53.8 68.0 110.3 110.3 106.3 107.8 113.7 104.9 104.9 104.9 108.5 103.7 97.5 95.3 100.4 101.2 99.7 102.6 111.5 112.5 109.6 107.4 102.2 97.1 106.6 93.4 97.5 95.3 84.3 88.7 64.4 79.6 79.1 111 105 106 106 103 105 104 103 102 103 105 105 103 103 103 102 99 98 98 98 100 101 97 101 95 92 92 86 92 86 80 .7 9 .9 4 .5 .3 .6 .4 .1 5 .3 5 .8 4 .7 .7 1 5 .3 .8 .3 .8 4 .2 .0 .8 .4 .6 .2 .4 .9 111.4 107 106.8 106 8 106.1 105.2 104.7 103.8 103.7 103.6 103.4 103.0 103.0 102 9 102.7 102.7 102 2 102.0 101.1 101.0 100.8 100.6 99.7 99.3 95.6 93.4 90.4 87.1 85.3 84.7 80.5 Funk Hybrid G212 U. S. Hybrid 44 (Moews) Illinois Hybrid 751. Funk Hybrid G32 Pfister-Stiegelmeier Hybrid 380 U. S. Hybrid 61 .. . . Moews Hybrid 10 National Hybrid 118 Illinois Hybrid 960 Illinois Hybrid 588 (Sibley Estate) DeKalb Hybrid 639 Pioneer Hi-Bred 312 DeKalb Hybrid 628 Illinois Hybrid 582 Funk Hybrid G33 Illinois Hybrid 546 Morgan Hybrid 52 Illinois Hybrid 753 (Sibley Estate) lowealth Hybrid AQj Pioneer Hi-Bred 317 . . . Funk Hybrid G55 Pioneer Hi-Bred 314 DeKalb Hybrid 606 Morgan- Wallace Hybrid 106 Roeschley Yellow Dent Illinois Hybrid 570 . . McKeighan Yellow Dent Krug t Average of 5 open-pollinated varieties . . . Doubet Yellow Dent 1939] ILLINOIS CORN PERFORMANCE TESTS 1938 255 Table 9. WEST-CENTRAL ILLINOIS: Littleton Rank Entry Acre-yield Damaged Mois- Rating for corn in ture in Erect Sound shelled grain at plants Erect Sound General sample harvest plants yield perform. Total 1938 bu. bu. pent. perct. perct. 1 *U. S. Hybrid 13 (Illini) 68.4 67.4 1.39 18.8 56.5 2 'Bear Hybrid OK-4 689 68.4 .78 17.7 48 3 *M-L Hybrid 514 (Moews-Lowe) 68.3 67.1 1.82 16.3 51 4 *U. S. Hybrid 35 (Illini) 64.8 64.0 1.20 18.6 57.5 5 DeKalb Hybrid 628 68.9 68.1 1.17 15.4 45 6 DeKalb Hybrid 821B 66.1 63.4 4.01 19.4 56 6 *M-L Hybrid 523 (Moews-Lowe) 62.4 62.2 .32 17.3 59 8 'Bear Hybrid OK-38 68.5 67.4 1.64 18.5 43 9 National Hybrid 119 66.7 65.6 1.71 16.4 46 10 *Illini Hybrid 211 65.0 63.5 2.33 18.8 49 11 'M-L Hybrid 120 (Moews-Lowe) 60.3 59.2 1 .90 18.6 58 12 Funk Hybrid G94 61.6 60.4 1.98 18.4 54 12 DeKalb Hybrid 827 60.9 59.6 2.16 17.5 56 14 Pioneer Hi-Bred 307 64.1 62.9 1.84 17.0 47 15 Funk Hybrid G212 62.8 62.2 .98 16.7 48.5 16 Funk Hybrid G33 63.3 62.4 1.43 15.8 46 17 DeKalb Hybrid 817 61.1 60.6 .88 17.0 49 18 Funk Hybrid G32 62.1 61.6 .87 16.5 45 19 Pioneer Hi-Bred 313 63.2 63.0 .26 15.6 41 20 Illinois Hybrid 960 (Holmes) 61.0 60.1 1.50 16.7 47.5 20 DeKalb Hybrid 823 58.3 57.4 1.61 17.4 54 22 'Pioneer Hi-Bred 304 62.9 60.9 3.24 19.5 45 23 Tiemann Tested Hybrid 221 61.1 60.5 .92 18.8 45 24 lowealth Hybrid CI 61.5 60.6 1.51 16.8 44 25 Funk Hybrid G53 55.7 54.4 2.30 16.1 59 26 'Illini Hybrid 222 568 55.7 1.94 190 55 27 lowealth Hybrid AQ 59.9 58.9 163 16.3 47 28 lowealth Hybrid 53 57.9 57.1 1.34 17.1 51 29 U. S. Hybrid 44 (Moews) 61.6 60.1 2.39 15.8 42 30 DeKalb Hybrid 692 58.1 57.1 .67 15.5 49 31 *U. S. Hybrid 5 (Mountioy) 59.2 57.7 2.49 16.3 47 32 Pfister-Stiegelmeier Hybrid 360 60.2 59.2 1.62 16.3 43 33 'Pioneer Hi-Bred 302 60.4 60.1 .42 16.7 40 34 Pfister-Stiegelmeier Hybrid 360A 58 . 7 57.7 1 . 62 17.0 45 34 'Pioneer Hi-Bred 318 55.8 55.5 .56 15.8 505 36 'Bear Hybrid OK-35 61.6 60.9 1.12 16.1 37 37 Pfister-Stiegelmeier Hybrid 366 58.7 57.8 1.48 16.1 44 38 Funk Hybrid G 102 58.1 57.0 1.84 16.8 45.5 39 111. Hybrid 588 (Sibley Estate) 57.3 56.5 1.32 19.2 44 40 lowealth Hybrid 50 55.3 54.8 .91 15.6 48 41 Funk Hybrid G244T 57.2 568 .64 17.0 41 42 Pfister-Stiegelmeier Hybrid 260 54.9 54.4 .93 16.7 46 43 National Hybrid 131 56.1 53.1 5.32 16.5 49 44 Pfister-Stiegelmeier Hybrid 160 56.2 545 3.03 16.7 45 45 'Pioneer EG-Bred 312 53.7 52.9 1.44 16.7 45 46 'Tiemann Tested Hybrid 613 540 52.2 3.33 16.5 46 47 Funk Hybrid G244 51.3 50.7 1.17 17.4 49 48 National Hybrid 130 52.4 52.0 .84 17.5 41 49 111. Hybrid 753 (Sibley Estate) 53.9 53.0 1.65 19.2 38 50 Illinois Hybrid 546 (McKeighan) 49.5 48.3 2.38 18.0 49 51 DeKalb Hybrid 871 49.9 48.8 225 18.4 41 52 DeKalb Hybrid 690 50.5 48.6 3.81 18.4 41 63 'Pioneer Hi-Bred 305A 48.2 47.2 2.07 18.8 43 54 'lowealth Hybrid 22 51.2 49.6 3.15 14.9 36 55 Pioneer Hi-Bred 317 47.4 45.6 3.86 16.3 41 56 tStation Yellow Dent 48.0 46.3 3.50 18.4 34 57 McKeighan Yellow Dent 44.4 44.2 .44 18.2 34 58 Sommer Yellow Dent 45.2 44.4 1.66 19.5 31 Average of 5 open-pollinated varieties ... 44. 4 43. 7 1.37 19. 1 32.8 59 Mountjoy Utility Dent 42.6 42.3 .80 20.1 32 60 Doubet Yellow Dent 41.9 41.5 1.03 19.5 32 Average of all entries... . 57.9 56.9 1.74 17.3 45.9 perct. 123.1 104.6 111.1 125.3 98.0 122.0 128.5 93.7 100.2 106.8 126.4 117.6 122.0 102.4 105 7 100.2 106.8 98.0 89.3 103 5 117.6 98.0 98.0 95 9 128.5 119.8 102.4 111.1 91.5 106.8 102.4 93.7 87.1 98.0 110.0 80.6 95.9 99.1 95.9 104.6 89.3 100.2 106.8 98.0 98.0 100.2 106.8 89.3 82.8 106.8 89.3 89.3 93.7 78.4 89.3 74.1 74.1 67.5 71.0 69.7 69.7 perct. 118.4 120.2 117.9 112.5 119.7 111.4 109.3 118.4 115.3 111.6 104.0 106.1 104.7 110.5 109.3 109.7 106.5 108.3 110.7 105.6 100.9 107.0 106.3 106.5 95.6 97.9 103.5 100.3 105.6 100.3 101.4 104 105.6 101.4 97.5 107.0 101.6 100.2 99.3 96.3 99.8 95.6 93.3 95.8 93.0 91.7 89.1 91.4 93.1 84 9 85.8 85.4 82.9 87.2 80 1 81.4 77.7 78.0 76.9 74.3 72.9 119.6 116.3 116.2 115.7 114.3 114.1 114.1 112.2 111.5 110.4 109.6 109 109.0 108.5 108.4 107.3 106 6 105.7 105.4 105.1 105.1 104.8 104.2 103 9 103.8 103.4 103.2 103.0 102.1 101.9 101.7 101.4 101.0 100.6 100.6 100.4 100.2 99.9 98.5 98.4 97.2 96.8 96.7 96.4 94.3 93.8 93.5 90.9 90.5 90.4 86.7 86.4 85.6 85.0 82.4 79.6 76.8 75.4 75.4 73.2 72.1 'Less than 5 bushels of seed sampled, t Average of 9 plots instead of 10. Less than 4.5 bushels difference between total yields of any two entries in this table is not considered significant. 256 BULLETIN No. 450 [January, Table 9A. RESISTANCE TO LODGING: West-Central, Littleton Lodging caused by feeding of southern corn rootworm 1 Plants leaning Plants leaning Resistance Hank Entry 30 degrees more than rating com- or more 45 degrees pared with average 2 1938 perct. perct. 1 DeKalb Hybrid 827 63.6 2.7 157 2 Funk Hybrid G53 65.2 4.4 146 3 M-L Hybrid 120 (Moews-Lowe) 69.4 2.7 144 4 U. S. Hybrid 35 (Illini) 69.1 3.7 141 5 M-L Hybrid 523 (Moews-Lowe) 68.6 5.1 137 6 DeKalb Hybrid 821B 71.8 4.3 134 7 DeKalb Hybrid 823 71.0 5.1 133 8 DeKalb Hybrid 652 70.6 6.0 131 9 DeKalb Hybrid 817 70.7 5.9 131 10 U. S. Hybrid 5 (Mountjoy) 73.8 5.7 127 11 Illini Hybrid 222 73.1 6.7 125 12 Funk Hybrid G94 78.1 5.6 121 13 U. S. Hybrid 13 (Illini) 75.3 7.9 118 14 Pioneer Hi-Bred 318 71.9 9.7 118 15 Funk Hybrid G32 76.0 7.8 118 16 National Hybrid 130 69.4 11.1 118 17 M-L Hybrid 514 (Moews-Lowe) 81.6 5.8 116 18 National Hybrid 131 76.9 8.2 116 19 Illinois Hybrid 960 (Holmes) 76.4 9.0 114 20 lowealth Hybrid 53 73.9 10.3 114 21 lowealth Hybrid 50 72.9 11.2 113 22 Funk Hybrid G244 70.0 13.6 111 23 Illini Hybrid 211 78.4 9.7 110 24 Bear Hybrid OK-4 76.1 11.0 110 25 DeKalb Hybrid 871 70.0 14.3 110 26 Pioneer Hi-Bred 312 77.4 11.0 109 27 Tiemann Tested Hybrid 613 83.5 10.0 104 28 National Hybrid 1192 75.2 14.8 103 29 Pioneer Hi-Bred 307 85.8 9.6 103 30 DeKalb Hybrid 690 82.9 13.6 98 31 lowealth Hybrid CI 84.7 13.1 97 32 Funk Hybrid G244T 76.7 17.2 97 33 Illinois Hybrid 546 (McKeighan) 87.1 12.8 96 34 Funk Hybrid G102 80.7 16.0 96 35 lowealth Hybrid AQ 83.0 15.2 95 36 Illinois Hybrid 753 (Sibley) 84.7 14.5 95 37 Bear Hybrid OK-35 82.8 15.6 95 38 Pioneer Hi-Bred 313 87.3 13.4 95 39 Illinois Hybrid 588 (Sibley) 84.3 15.0 94 40 Pioneer Hi-Bred 304 88.0 13.9 93 41 Pfister-Stiegelmeier Hybrid 360A 85.6 15.1 93 42 Tiemann Tested Hybrid 221 86.4 15.3 92 43 44 DeKalb Hybrid 628 Bear Hybrid OK-38 83.7 85.9 16.6 15.6 92 92 45 Funk Hybrid G33 83.2 17.0 92 46 47 Pfister-Stiegelmeier Hybrid 260 Funk Hybrid G212 87.8 83.3 15.4 18.3 91 90 48 U. S. Hybrid 44 (Moews) 82.8 18.7 90 49 Pioneer Hi-Bred 305A 90.7 15.8 88 50 Pfister-Stiegelmeier Hybrid 360 90.5 16.0 88 51 Pioneer Hi-Bred 302 86.3 18.5 88 52 Pioneer Hi-Bred 317 88.8 18.5 86 53 Pfister-Stiegelmeier Hybrid 160 91.1 17.9 85 54 Pfister-Stiegelmeier Hybrid 366 88.5 19.9 84 55 lowealth Hybrid 22 90.8 21.0 81 56 Station Yellow Dent 96.0 31.3 68 57 McKeighan Yellow Dent 92.3 33.3 68 58 Doubet Yellow Dent 97.7 31.5 67 59 Mountjoy Utility Dent 97.0 35.2 65 60 Sommnr Yfillnw TVnt. 96.9 43.7 59 Average of all entries 80.6 13.7 100 'Southern corn rootworm, Diabrotica duodecimpundata Fab. See also text, pages 231 and 232. 'Average resistance of all entries = 100. High rating indicates increased standing ability. 1939] ILLINOIS CORN PERFORMANCE TESTS 1938 257 Table 9B. TWO- AND THREE-YEAR SUMMARIES, WEST-CENTRAL: Littleton Rank Entry Acre-yield Damage corn m shelled sample d Mois- ture in grain at ] harvest Rating for plants Erect plants Sound yield General perform. Total Sound Average yield of entries grown in 1936, 1937 , 1938 1 8 1 4 8 7 8 4 .8 Illinois Hybrid 960 ... bu. 70 8 69.1 67.2 65.6 65.1 62.6 64.4 55.2 53.8 52.7 62.7 bu. 70.1 68.4 66.4 64.7 64.5 61.5 63.7 54.2 53.2 52.4 61.9 perct. 1.10 1.17 1.40 1.35 1.09 2.30 1.35 2.30 1.42 1.17 1.47 perct. 17.4 17.1 17.2 16.7 17.7 18.2 19.1 19.3 19.1 18.9 18.1 perct. 68.3 69.7 66.3 67.4 67.1 73.7 61.8 52.8 51.0 48.3 62.6 perct. 109.1 111.3 105.9 107.7 107.2 117.7 98.7 84.3 81.5 77.2 perct. 113.2 110.5 107.3 104.5 104.2 99.4 102.9 87.6 85.9 84.7 112.2 110.7 107.0 105.3 105.0 104.0 101.9 86.8 84.8 82.8 Funk Hybrid G212 'Pfister-Stiegelmeier Hybrid 360 'Pfister-Stiegelmeier Hybrid 360A Funk Hybrid G244. Illinois Hybrid 546 Illinois Hybrid 753 (Sibley Estate) Station Yellow Dent 1 Average of 5 open-pollinated varieties . . Mountjoy Utility Dent . . . Average of all entries Average yield of entries grown in 1937 and 1938 1 I 8 4 8 8 7 8 8 10 11 12 H 14 15 16 17 IS HI I'll 21 Funk Hybrid G53. 81.9 85.9 87.3 84.4 85.7 81.9 85.2 84.1 82.9 78.8 82.0 78.3 81.7 78.5 79.3 78.1 75.3 75.5 67.1 69.6 68.9 68.8 66.0 67.7 78.1 . 77.8 81.0 85.3 86.9 83.8 84.6 80.8 84.4 83.1 82.2 78.3 81.3 77.6 81.3 77.7 78.6 77.0 74.6 74.8 66.3 68.5 68.8 68.2 65.6 67.4 77.8 77.5 1.50 .81 .59 .89 1.51 1.57 1.10 1.33 1.03 .78 1.02 1.00 .49 1.32 1.00 2.13 1.01 1.14 1.44 1.97 .40 .90 .73 .57 1.09 .57 16 17 16 17 17 18 16 17 17 18 17 18 18 18 16 16 19 19 18 19 19 19 19 19 18 17 .3 .3 .7 .7 .1 .2 .4 .6 .6 .4 .4 .6 .0 .4 .7 .8 .4 .0 .9 .4 .3 .5 .4 .5 .1 .3 71.5 62.3 58.5 61.3 58.5 65.5 57.0 57.3 55.8 62.8 54.0 58.5 50.0 57.0 55.0 55.8 55.0 51.0 51.8 42.8 39.3 40.3 42.5 37.0 54.2 60.5 131.9 115.0 108.0 113.1 108.0 120.9 105.2 105.7 103.0 115.9 99.7 108.0 92.3 105.7 101.5 103.0 101.5 94.1 95.6 79.0 72.5 74.4 78.4 68.3 104.1 109.6 111.6 107.7 108.7 103.8 108.4 106.8 105.6 100.6 104.4 99.7 104.4 99.8 101.0 98.9 95.8 96.1 85.2 88.0 88.4 87.7 84.3 86.6 111.1 111.0 110.7 109.1 108.5 108.1 107.6 106.5 105.0 104.4 103.2 101.8 101.4 101.2 101.1 99.9 97.2 95.6 87.8 85.8 84.4 84.4 82.8 82.0 Funk Hybrid G212 DeKalb Hybrid 628 Illinois Hybrid 960 (Holmes) U. S. Hybrid 44 (Moewi) Illinois Hybrid 546 (McKeighan) . Pfister-Stiegelmeier Hybrid 360 Pioneer Hi-Bred 307 Pfister-Stiegelmeier Hybrid 3 60 A . Funk Hybrid G244 Funk Hybrid G33. Pioneer Hi-Bred 312 Funk Hybrid G244T DeKalb Hybrid 871 . Pfister-Stiegelmeier Hybrid 366 Pioneer Hi-Bred 317 Illinois Hybrid 588 (Sibley Estate) Illinois Hybrid 753 (Sibley Estate) Pioneer Hi-Bred 305A Station Yellow Dent McKeiehan Yellow Dent. . . Average of 5 open-pollinated varieties . . 22 Doubet Yellow Dent . . 23 Mountjoy Utility Dent Average of all entries 'Pfister-Stiegelmeier Hybrid 260 'Entered as Illinois hybrids in 1936. ^Entered in Stanford field in 1937. 258 BULLETIN No. 450 [January, Table 10. EAST-CENTRAL ILLINOIS: Paxton Damaged Mois- Rating for - shelled . r i Total Sound sample harvest plants yield perform. 1938 bu. bu. perct. perct. perct. perct. perct. 1 'Bear Hybrid OK-60 59.9 59.0 1.51 13.2 86 107.5 122.7 118.9 2 U. S. Hybrid 44 (Moews) 60.7 57.3 5.57 13.8 89.5 111.9 119.1 117.3 3 Moews Hybrid 10 58.1 57.7 .64 12.9 86 107.5 120.0 116.9 4 tPioneer Hi-Bred 313 61.1 60.1 1.65 14.0 73.5 91.9 124.9 116.7 5 *M-L Hybrid 524 (Moews-Lowe) 58.0 57.2 1.35 13.6 81 5 101.9 118 9 114.7 6 Illinois Hybrid 960 (Holmes) 7 *U. S. Hybrid 13 (Illini) 57.7 55.1 56.5 54.5 2.00 1.17 13.2 15.2 82 89.5 102.5 111.9 117.5 113 3 113.8 113.0 8 Funk Hybrid G94 55.4 54.2 2.20 15.6 90 112.5 112.7 112.7 9 Pioneer Hi-Bred 317 56.7 55.7 1.81 13.3 82 102.5 115.8 112.5 10 111. Hybrid 588 (Sibley Estate) 55.1 54.6 .92 14.0 81.5 101.9 113.5 110.6 11 Pioneer Hi-Bred 307 56.0 53.1 5.16 12.5 85.5 106.9 110.4 109.5 12 tFunk Hybrid G33 54.3 54.3 .09 14.0 77.5 96.9 112.9 108.9 13 Pfister-Stiegelmeier Hybrid 160 14 Funk Hybrid G65 53.2 54.0 51.8 52.0 2.71 3.70 15.2 12.1 87 85 108.8 106.2 107.7 108.1 108.0 107.6 15 *Bear Hybrid OK-30 52.7 52.6 .20 14.0 80.5 100.6 109.4 107.2 15 'Pioneer Hi-Bred 302 52.4 52.0 .80 14.1 83.5 104.4 108.1 107.2 17*tCrow Hybrid 804 54.2 53.7 .86 14.0 70 87.5 111.6 105.6 18 lowealth Hybrid AQ 50.8 49.4 2.74 12.7 87.5 109.4 102.7 104.4 19 National Hybrid 130 . 49.9 49.7 .45 13.1 85.5 106.9 103.3 104.2 20 Funk Hybrid G62 51.2 50.2 2.04 13.3 82.5 103.1 104.4 104.1 21 tDeKalb Hybrid 870 52.2 51.7 1.03 12.3 74 92.5 107.5 103.8 21 tlowealth Hybrid 53 51.5 50.6 1.66 13.1 79.5 99.4 105.2 103.8 21 'Pioneer Hi-Bred 318 50.1 50.1 .08 11.6 82 102.5 104.2 103.8 24'tlllini Hybrid 211 52.1 51.4 1.33 13.3 75 93.8 106.9 103.6 25 Funk Hybrid G53 49 8 48.8 1.97 12.9 86 107.5 101.5 103.0 26 Pfister-Stiegelmeier Hybrid 378 48.5 48.2 .59 12.3 87.5 109.4 100.2 102.5 27 Pfister-Stiegelmeier Hybrid 90 50.3 49.9 .76 12.9 77.5 96.9 103.7 102.0 28 Pfister-Stiegelmeier Hybrid 380 49.5 48.7 1.52 14.3 83 103.8 101.2 101.9 29 *M-L Hybrid 120 (Moews-Lowe) . 48.2 47.7 .95 12.5 87.5 109.4 99.2 101.8 30 111. Hybrid 753 (Sibley Estate) 48.9 48.6 .64 15.6 83 103.8 101.0 101.7 31*tPioneer Hi-Bred 305A 51.9 50.8 2.19 16.2 67.5 84.4 105.6 100.3 32 'Illini Hybrid 222 48.3 47.8 1.06 12.8 82 102.5 99.4 100.2 33 Tiemann Tested Hybrid 613 47.7 47.0 1.38 12.9 84.5 105.6 97.7 99.7 34 tFunk Hybrid G212 , 49.9 48.8 2.20 12.6 75 93.8 101.5 99.6 35 Funk Hybrid G32 47.7 47.0 1.37 13.3 82 102.5 97.7 98.9 36 Funk Hybrid G244 46.9 46.6 .67 13.0 82.5 103.1 96.9 98.5 37 *P. S. M. Hybrid 370 (Mittendorf) . 47.8 47.4 .88 13.6 78 97.5 98.5 98.3 38*tPioneer Hi-Bred 312 48.8 47.4 2.78 13.8 77.5 96.9 98.5 98.1 38 'DeKalb Hybrid 903 (W) 47.7 47.3 .90 15.2 78 97.5 98.3 98.1 40 'Illini Hybrid 233 46.3 46.2 .22 13.8 83 103.8 96.0 98.0 41 *Crow Hybrid 608 46 6 46.0 1.35 14.1 82.5 103.1 95.6 97.5 42 'DeKalb Hybrid 825 47.6 45 9 3.64 14.0 82 102.5 95.4 97.2 43 Pfister-Stiegelmeier Hybrid 365 47.2 44.2 6.32 13.2 84 105.0 91.9 95 2 44*tCrow Hybrid 603 45.8 45.8 .09 12.1 75 93.8 95.2 94.9 45 lowealth Hybrid 52 44.7 44.4 .66 15.2 81.5 101.9 92.3 94.7 46'tCrow Hybrid 640 , 46.2 45.9 .75 13.6 73 91.3 95.4 94.4 47 tNational Hybrid 124 45 44.3 1.64 12.3 76.5 95.6 92.1 93.0 48 tlowealth Hybrid CI 43.9 43.0 2.00 14.0 78.5 98.1 89.4 91.6 49 tNational Hybrid 125E 43.6 42.9 1.70 12.9 76 95.0 89.2 90.7 50*tU. S. Hybrid 5 (Mountjoy) . 43.9 43.3 1.46 12.6 72.5 90.6 90.0 90.2 51 'DeKalb Hybrid 907 (W) 40.1 39.8 .78 15.0 81.5 101.9 82.7 87.5 52 'DeKalb Hybrid 915 (W) 38.3 38.2 .28 15.8 88 110.0 79.4 87.1 53 'DeKalb Hybrid 701 (W) . 39.5 39.0 1.26 15.4 83 103.8 81.1 86.8 54 'DeKalb Hybrid 702 (W) 38.8 38.6 .60 15.0 80.5 100.6 80.2 85.3 55 Sommer Yellow Dent 40 8 40.7 .21 14.9 66.5 83.1 84.6 84.2 56 tMcKeighan Yellow Dent 40 9 40.8 .27 15.0 65.5 81.9 84.8 84.1 57 tStation Yellow Dent 39.5 39.0 1.29 15.9 73.5 91.9 81.1 83.8 58 Doubet Yellow Dent . 36.2 35.5 1.90 14.2 81.5 101.9 73.8 80.8 59*tPioneer Hi-Bred 304 . 39.4 38 1 3.34 15.2 68 85.0 79.2 80.7 Average of 5 open-pollinated varieties . 38.3 37.6 1.99 14.9 69.4 86.8 78.2 81.3 60 tMountjoy Utility Dent 34.3 32.1 6.30 14.3 60 75.0 66.7 68.8 Average of all entries . 48.9 48.1 1.63 13 8 80 'Less than 5 bushels of seed sampled, t Average of 9 plots instead of 10. Less than 6.8 bushels difference between total yields of any two entries in this table is not considered significant. 1939] ILLINOIS CORN PERFORMANCE TESTS 1938 259 Table 10A. TWO- AND THREE- YEAR SUMMARIES, EAST-CENTRAL: Paxton Rank Entry Acre-yield Damaged Mois- corn in ture in shelled grain at sample harvest Erect - plants Rating for Erect plants Sound yield General perform. Total Sound Average yield of entries grown in 1936, 1937 , 1938 1 i 8 4 I 6 4 7 Illinois Hybrid 960. bu. 69.7 66.8 64.8 63.6 62.7 52.4 51.7 50.0 60.2 bu. 68.9 66.1 63.9 63.1 62.2 51.8 51.2 49.0 59.5 perct. 1.27 1.27 1.58 .92 1.02 1.56 1.63 3.00 1.53 perct. 16.3 15.6 15.7 16.2 17.9 18.4 17.7 17.0 16.9 perct. 79.8 86.9 78.5 78.3 76.8 65.9 63.3 57.7 73.4 perct. 108.7 118.4 106.9 106.7 104.6 89.8 86.2 78.6 perct. 115.8 111.1 107.4 106.1 104.5 87.1 86.1 82.4 114.0 112.9 107.3 106.3 104.5 87.8 86.1 81.5 Moews Hybrid 10 Funk Hybrid G212 Funk Hybrid G244 Illinois Hybrid 753 (Sibley Estate) Station Yellow Dent . t Average of 5 open-pollinated varieties. . . Mountjoy Utility Dent . Average of all entries. . . . Average yield of entries grown in 1937 and 1938 1 3 8 4 8 7 7 9 10 11 12 13 14 14 16 17 18 19 211 21 4 22 23 Pioneer Hi-Bred 317 68.1 68.5 67.8 66.0 66.5 66.3 66.8 66.3 63.4 64.2 62.9 62.5 62.8 63.1 61.8 60.1 58.8 57.9 58.7 53.8 53.1 52.6 49.8 51.5 61.4 80.6 67.3 67.7 66.0 65.7 66 5 64.9 66.5 66.0 62.8 63.5 62.7 62.0 61.8 62.4 61.4 60.0 57.9 57.3 58.0 53.7 52.9 52.2 49.4 50.4 60.8 80.4 1.30 1.19 2.94 .43 .05 2 59 .66 .51 1.15 1.39 .48 1.04 1.85 1.33 .76 .39 1.90 1.26 1.33 .14 .65 1.01 .95 3.23 1.19 .38 14.9 14.7 15.3 14.4 15.1 13.9 14.1 15.2 15.8 15.0 16.5 14.5 14.1 14.4 14.7 14.1 16.1 14.6 17.7 16.7 17.3 16.5 16.1 15.4 15.3 14.5 87.3 85.5 90.3 89.5 84.3 89.0 80.0 81.8 85.0 81.8 84.5 86.5 86.8 83.0 86.8 85.5 85.0 82.5 74.8 72.5 73.5 71.8 76.8 65.0 82.1 74.8 106 104 110 109 102 108 97 99 103 99 102 105 105 101 105 104 103 100 91 88 89 87 93 79 .8 .1 .0 .0 ' .7 .4 .4 .8 .8 .6 .9 .4 .7 .1 .7 .1 .6 .8 .1 .8 .5 .5 ,8 .3' 110.7 111.3 108.6 108.1 109.4 106.7 109.4 108.6 103.3 104.4 103.1 102.0 101.6 102.6 101.0 98.7 95.2 94.2 95.4 88.3 87.0 85.9 81.3 82.9 109.6 109.5 109.0 108.3 107.7 107.1 106.4 106.4 103.4 103.2 103.1 102.9 102.6 102.2 102.2 100.1 97.3 95.8 94.3 88.3 87.6 86.3 84.4 82.0 Illinois Hybrid 960 (Holmes) U. S. Hybrid 44 (Moews) Moews Hybrid 10 . Funk Hybrid G33 Pioneer Hi-Bred 307 DeKalb Hybrid 870.. Illinois Hybrid 588 (Sibley Estate) Funk Hybrid G62 Pioneer Hi-Bred 312 Illinois Hybrid 753 (Sibley Estate) Funk Hybrid G53.. . Funk Hybrid G65 Funk Hybrid G212 Pfister-Stiegelmeier Hybrid 380 . Funk Hybrid G244 DeKalb Hybrid 825 National Hybrid 124 Pioneer Hi-Bred 305A McKeighan Yellow Dent Station Yellow Dent > Average of 5 open-pollinated varieties. . . Doubet Yellow Dent Mountjoy Utility Dent Average of all entries. 'Pfister-Stiegelmeier Hybrid 90 'Entered in Stanford field in 1937. 260 BULLETIN No. 450 [January, Table 11. SOUTH-CENTRAL ILLINOIS: Sullivan Damaged Mois- Rating for shelled , . 'Total Sound sample harvest plants yield perform. 1938 bu. bu. perct. perct. perct. perct. perct. 1 Illinois Hybrid 784 (Illini) 83.6 80.3 3.94 20.0 73 119.5 121.5 121.0 2 'DeKalb Hybrid 825 77.4 77.4 .02 16.6 75.5 123.6 117.1 118.7 3 'Illini Hybrid 211 76.8 76.7 .14 16.4 77 126.0 116.0 118.5 4 Funk Hybrid G125 78.0 76.1 2.50 17.5 75 122.8 115.1 117 5 'Bear Hybrid OK-30 77.6 77.4 .26 16.3 71 116.2 117.1 116.9 6 'Bear Hybrid OK-60 76.1 76.0 .18 16.3 69 112.9 114.9 114.4 7 'Funk Hybrid G95 78.4 77.0 1.85 18.2 60.5 99.0 116.5 112.1 7 'DeKalb Hybrid 918 (W) 72.0 71.9 .13 18.7 74.5 122.0 108.8 112.1 9 Pioneer Hi-Bred 307 75.1 74.3 1.15 16.6 66.5 108.9 112.4 111.5 10 Funk Hybrid G94 72.1 71.7 .61 16.8 73.5 120.3 108.4 111.4 11 U. S. Hybrid 35 (Illini) 71.6 71.5 .13 15.0 73.5 120.3 108.1 111.2 12 'Illini Hybrid 233 71.9 71.6 .46 15.6 73 119.5 108.3 111.1 13 'lowealth Hybrid 30 74.4 74.2 .15 17.4 65 106.4 112.2 110.8 14 Pioneer Hi-Bred 313 81.3 81.2 .16 18.9 45 73.7 122.8 110.5 15 Pfister-Stiegelmeier Hybrid 380 74.3 72.3 2.64 15.5 66.5 108.9 109.3 109.2 16 Bunning White Dent . 74.1 73.8 .45 17.4 60.5 99 111.6 108.5 17 Funk Hybrid G46 73.4 70.4 4.05 18.6 67 109.6 106.5 107.3 18 'Illini Hybrid 222 70.8 68.7 3.07 15.8 71.5 117.0 103.9 107.2 19 DeKalb Hybrid 823 68.5 68.2 .38 15.6 71.5 117.0 103.1 106.6 20 Canterbury Yellow Dent 70.1 69.9 .23 19.2 66 108.0 105.7 106.3 21 Funk Hybrid G49 71.1 70.4 .96 15.6 63 103.1 106.5 105.7 22 'DeKalb Hybrid 832 67.9 67.8 .22 19.5 69 112.9 102.5 105.1 23 DeKalb Hybrid 817 , 72.5 70.5 2.79 16.8 59 96.6 106.6 104.1 24 Funk Hybrid G235 67.7 66.9 1.18 16.8 66.5 108.9 101.2 103.1 24 'Crow Hybrid 608 66.3 66.3 .07 17.2 68 111.3 100.3 103.1 26 Wilson Yellow Dent 68.8 66.2 3.85 18.6 67.5 110.5 100.1 102.7 27 Pfister-Stiegelmeier Hybrid 360 69.6 69.4 .26 16.1 58 94.9 105.0 102.5 28 DeKalb Hybrid 827 67.2 65.2 2.93 14.3 69.5 113.8 98.6 102.4 29 'DeKalb Hybrid 915 (W) . 66.1 65.1 1.44 17.6 68.5 112.1 98.5 101.9 Average of 5 open-pollinated varieties. . 67.6 66.8 1.16 18.0 63.7 104.3 101.1 101.9 30 Funk Hybrid G56 . 68.7 68.4 .50 18.2 59 96.6 103.5 101.8 31 'Crow Hybrid 603 66.7 66.2 .72 15.0 65 106.4 100.1 101.7 31 'Pioneer Hi-Bred 305A 65.4 64.4 1.47 17.7 70 114.6 97.4 101.7 33 'National Hybrid 132 , 69.7 69.2 .65 19.3 56 91.7 104.7 101.4 34 'Bear Hybrid OK-35 , 68.8 68.3 .70 16.1 56 91.7 103.3 100.4 35 DeKalb Hybrid 821B . 67.6 66.0 2.38 16.6 62 101.5 99.8 100.2 36 'Crow Hybrid 701W 65.7 65.1 .87 17.7 64 104.8 98.5 100.1 37 Illinois Hybrid 947 (Illini) , 65.1 64.8 .43 17.7 64 104.8 98.0 99.7 38 'Illinois Hybrid 863 (Illini) . 65.8 63.9 2.86 18.4 66 108.0 96.7 99.5 39 Rice White Dent 66.9 66.2 1.00 17.4 58.5 95.8 100.1 99.1 40 'Crow Hybrid 804 68.3 67.0 1.93 17.0 55 90.0 101.3 98.5 41 'Funk Hybrid G85 64.4 63.9 .79 17.4 59 96.6 96.6 96.6 42 Tiemann Tested Hybrid 800 , 68.0 65.6 3.59 15.8 52 85.1 99.2 95.7 43 'Funk Hybrid G92 , 63.7 62.0 2.61 17.4 60.5 99.0 93.8 95.1 44 Pfister-Stiegelmeier Hybrid 365 . 67.7 67.3 .62 16.2 43.5 71.2 101.8 94.2 45 National Hybrid 119z , 62.3 61.8 .85 15.5 58 94.9 93.5 93.9 46 Shuman Golden Beauty . 58.2 58.1 .25 17.5 66 108.0 87.9 92.9 47 Pfister-Stiegelmeier Hybrid 360A . 64.3 62.6 2.69 16.4 51.5 84.3 94.7 92.1 48 Pioneer Hi-Bred 317 . 60.4 59.2 2.00 15.6 58 94.9 89.5 90.9 49 'Funk Hybrid G50 . 61.2 60.8 .62 17.4 51 83.5 91.9 89.8 49 'Pioneer Hi-Bred 312 . 57.4 56.8 1.09 16.1 62 101.5 85.9 89.8 51 Funk Hybrid G244T . 62.8 61.9 1.41 16.4 46 75.3 93.6 89.0 52 National Hybrid 131 . 57.3 57.2 .17 14.0 50 81.8 86.5 85.3 53 'lowealth Hybrid 22 . 57.5 56.9 .99 15.5 46 75.3 86.1 83.4 54 lowealth Hybrid 50 . 54.8 51.8 5.45 15.6 48 78.6 78.3 78.4 55 lowealth Hybrid 53 . 50.8 50.2 1.15 14.8 50.5 82.7 75.9 77.6 56 Illinois Hybrid 960 (Holmes) . 53.7 53.5 .40 15.8 41 67.1 80.9 77.5 57 Pfister-Stiegelmeier Hybrid 160 . 49.3 49.3 .02 17.0 51 83.5 74.6 76.8 58 DeKalb Hybrid 870 . 52.4 52.0 .70 15.8 40 65.5 78.6 75.3 59 Funk Hybrid G244 . 48.7 48.5 .49 16.3 48 78.6 73.4 74.7 60 National Hybrid 130 . 50.1 49.4 1.38 15.7 44 72.0 74.7 74.0 Average of all entries . 67.0 66.1 1.28 16.8 61.1 'Leas than 5 bushels of seed sampled. Less than 5.4 bushels difference between total yields of any two entries in this table is not considered significant. 1939] ILLINOIS CORN PERFORMANCE TESTS 1938 261 Table 11A. RESISTANCE TO LODGING: South-Central, Sullivan Lodging caused by feeding of southern corn rootworm 1 Rank Entry Plants leaning 30 degrees or more Plants leaning more than 45 degrees Resistance rating com- pared with average 2 1938 perct. 1 Funk Hybrid G94 2.7 2 Funk Hybrid G 125 1.0 3 DeKalb Hybrid 825 1.5 4 Pioneer Hi-Bred 305A 2.3 5 Illini Hybrid 233 4.8 6 Funk Hybrid G49 5.9 7 DeKalb Hybrid 821B 5.3 8 DeKalb Hybrid 817 4.2 9 Crow Hybrid 603 3.7 10 DeKalb Hybrid 832 5.0 11 Illinois Hybrid 960 (Holmes) 6.4 12 DeKalb Hybrid 827 5.5 13 Illinois Hybrid 784 (Illini) 5.3 14 Illini Hybrid 211 7.0 15 Illini Hybrid 222 7.7 16 Pnster-Stiegelmeier Hybrid 160 6.4 17 Pnster-Stiegelmeier Hybrid 380 8.5 18 Illinois Hybrid 947 (Illini) 8.4 19 Bear Hybrid OK-60 9.0 20 Funk Hybrid G85. 7.6 21 Crow Hybrid 804 10.5 22 U. S. Hybrid 35 (Illini) 6.5 23 DeKalb Hybrid 823 9.5 24 Crow Hybrid 608 5.9 25 Pioneer Hi-Bred 313 7.5 26 Funk Hybrid G46 10.9 27 National Hybrid 130 11.2 28 Funk Hybrid G50 7.3 29 DeKalb Hybrid 918 (W) 12.1 30 Bear Hybrid OK-30 10.1 31 DeKalb Hybrid 870 11.0 32 Funk Hybrid G92 13.0 33 Pioneer Hi-Bred 317 9.5 34 Bear Hybrid OK-35 14.8 35 Tiemann Tested Hybrid 800 10.3 36 Pfister-Stiegelmeier Hybrid 360A 12.1 37 Pioneer Hi-Bred 307 13.1 38 lowealth Hybrid 53 12.7 39 DeKalb Hybrid 915 (W) 16.4 40 Pioneer Hi-Bred 312 12.9 41 Funk Hybrid G56 14.7 42 Funk Hybrid G235 13.6 43 Illinois Hybrid 863 (Illini) 13.4 44 Funk Hybrid G244 12.8 45 National Hybrid 119i 14.8 46 Crow Hybrid 701W 16.9 47 Pnster-Stiegelmeier Hybrid 365 17.4 48 lowealth Hybrid 30 22.3 49 Funk Hybrid G244T 18.1 50 lowealth Hybrid 50 17.0 51 P6ster-Stiegelmeier Hybrid 360 22.3 52 Funk Hybrid G95 20.0 53 lowealth Hybrid 22 22.1 54 Bunning White Dent 27.2 55 National Hybrid 132 28.3 56 Rice White Dent 23.9 57 National Hybrid 131 23.9 58 Wilson Yellow Dent 28.3 59 Canterbury Yellow Dent 33.5 60 Shuman Golden Beauty 29.2 Average of all entries 12.4 perct. 1.0 1.0 1.1 .5 .5 1.1 1.6 1.7 1.1 2.0 2.1 2.2 2.2 2.9 2.1 2.2 2.1 3.0 2.0 4.0 2.6 4.7 4.3 2.7 2.8 4.7 2.7 3.7 4.4 3.8 5.6 3.2 5.4 5.5 5.6 5.8 4.5 6.4 5.8 6.6 6.7 7.3 8.3 7.4 7.4 6.4 9.3 11.0 9.3 10.2 11.0 9.9 10.7 12.8 13.0 11.0 14.0 16.9 5.2 814 760 633 496 393 380 356 345 326 271 265 238 238 200 187 187 178 178 173 168 156 156 154 148 141 139 136 136 130 130 115 111 110 108 108 98 93 93 90 88 86 85 85 83 73 72 71 65 62 58 56 56 52 49 46 46 46 45 37 36 100 'vSouthern corn rootworm, Diabrotica duodecimpwictala Fab. See also text, pages 231 and 232. 'Average resistance of all entries =100. High rating indicates increased standing ability. 262 BULLETIN No. 450 Table 11B. TWO- AND THREE- YEAR SUMMARIES, SOUTH-CENTRAL: Sullivan Rank Entry Dai Acre-yield co riag( rn ii riled :nple sd Mois- i ture in grain at harvest Erect - plants Rating for Erect plants Sound yield General perform. Total Sound sai Average yield of entries grown in 1936, 1937 , 1938 1 2 8 4 5 1 Funk Hybrid G235 . bu. 70.3 69.0 66.9 66.4 66.2 63.7 67.8 bu. perct. 69.6 1.55 68.7 .64 66.3 1.94 66.2 .52 65.6 1.34 63.0 1.66 67.3 1.20 perct. 17.2 16.3 18.7 17.1 18.8 19.2 17.6 perct. 65.9 53.4 57.5 54.9 55.1 57.1 57.4 perct. 114.8 93.0 100.2 95.6 96.0 99.5 perct. 103.4 102.1 98.5 98.4 97.5 93.6 106.3 99.8 98.9 97.7 97.1 95.1 Illinois Hybrid 960 Funk Hybrid G244 Rice White Dent ( Average of 5 open-pollinated varieties. . . Average of all entries Average yield of entries grown in 1937 and 1938 1 2 8 4 5 6 7 7 9 HI 11 12 1] 14 15 Hi 17 i 18 DeKalb Hybrid 825... 90.5 94.9 93.1 91.6 94.0 92.0 91.7 91.2 92.7 90.5 93.0 87.4 86.5 84.1 82.5 86.5 88.8 86.0 74.2 89.0 90 94 81 90 93 90 91 90 92 89 92 86 86 83 82 86 88 85 74 88 .3 .4 .4 2 .3 1 .7 .8 1 .3 .8 .1 .5 1 .8 .9 .2 .7 1 .2 .4 .6 2 .5 .21 .62 .16 .50 .33 .69 .41 .62 .83 .44 .28 .51 .48 .45 .49 .34 .80 .66 .72 18.4 16.6 19.1 16.5 18.9 19.2 17.1 17.7 16.9 16.9 17.8 18.3 16.8 17.1 18.3 16.7 18.8 18.9 19.5 17.9 83.6 73.2 75.0 75.8 67.6 74.0 70.7 71.9 64.7 67.7 56.1 63.3 62.0 66.2 69.2 58.3 52.6 55.3 55.0 66.4 125.9 110.2 113.0 114.2 101.8 111.4 106.5 108.3 97.4 102.0 84.5 95.3 93.4 99.7 104.2 87.8 79.2 83.3 82.8 102.0 106.7 103.3 102.0 105.9 102.6 103.2 102.6 104.1 101.1 104.9 98.2 97.4 94.6 92.8 97.4 99.9 96.7 83.8 108.0 107.6 105.7 105.1 104.9 104.8 104.0 104.0 102.4 101.3 99.8 97.5 96.4 95.9 95.7 95.0 94.7 93.4 83.6 Funk Hybrid G49 Funk Hybrid G46 . ... Pfister-Stiegelmeier Hybrid 380 Funk Hybrid G56 Illinois Hybrid 863 .... Pfister-Stiegelmeier Hybrid 360 Funk Hybrid G235 Funk Hybrid G244T Pfister-Stiegelmeier Hybrid 360A Funk Hybrid G50 DeKalb Hybrid 870 Funk Hybrid G244 Illinois Hybrid 947 Illinois Hybrid 960 (Holmes) Rice White Dent > Average of 5 open-pollinated varieties. . . Table 12A. TWO-YEAR SUMMARY, SOUTHERN ILLINOIS: Shobonier Rank Entry Damaged Mois- Acre-yield corn in ture in Erect shelled grain at plants Sound sample harvest Rating for Total Erect Sound General plants yield perform. Average yield of entries grown in 1937 and 1938 bu. bu. perct. per rf. perct. perct. pera ^ 1 St. Charles White... 35 6 35.2 .61 17 4 41.3 90.6 127 .ft 118.3 2 Funk Hybrid G90 30.6 30.5 .29 13 6 53.5 117.3 110 .8 112.2 8 DeKalb Hybrid 907 (W) 30.1 30.0 .20 16 .4 54.0 118.4 108 ,7 111 1 4 5 Waddell Utility White Dent Champion White Pearl 32.0 31.0 31.9 30.8 .26 .30 14 18 ,8 .0 43.8 43.3 96.1 95.0 115 111 .f. 110.7 107.5 6 Funk Hybrid G49 29.9 29.6 .64 14 4 49.0 107.5 107 2 107.3 7 Illinois Hybrid 863 29.8 29.5 .56 15 ,2 48.0 105.3 106 9 106.5 8 DeKalb Hybrid 915 (W) 28.5 28.3 .50 14 7 52.5 115.1 102 ,6 105.7 ) Average of 5 open-pollinated varieties . 30.7 30.6 .26 17 .2 39.4 86.4 110 .9 104.8 9 Funk Hybrid G56 26.7 26.6 .39 12 6 50.8 111.4 96 4 100.2 10 Blackhawk 29.7 29.7 .02 18 ,8 31.8 69.7 107 .6 98.1 11 Funk Hybrid G95 24.4 24.4 .23 13 .8 52.5 115.1 88 ,4 95.1 12 Funk Hybrid G92 25.9 25.8 .39 13 9 42.3 92.8 93 .8 93.3 13 DeKalb Hybrid 870 24.6 24.6 .29 13 .3 47.5 104.2 89 .1 92.9 14 DeKalb Hybrid 871 22.5 22.5 .34 12 ,7 46.8 102.6 81 6 86.8 15 Funk Hybrid G62 23.8 23.6 .52 12 6 37.8 82.9 85 ,8 84.9 16 Funk Hybrid G244 23.2 23.1 .33 13 ,2 40.0 87.7 83 7 84.7 17 Pfister-Stiegelmeier Hybrid 360A 20.1 20.0 .52 12 ,8 45.8 100.4 72 ,8 79.5 Average of all entries 27 7 27 6 37 14 8 45 6 1939] ILLINOIS CORN PERFORMANCE TESTS 1938 263 Table 12. SOUTHERN ILLINOIS: Shobonier Damagtt 1 Mois- Rating for A pro. shelled . Total Sound sample harvest plants yield perform. 1938 bu. bu. perct. perct. perct. perct. perct. 1 Illinois Hybrid 784 (Illini) 53.1 53.0 12 18.9 67 114.4 133.5 128.7 2 St. Charles White (Isenberg) 53.7 53.0 1.22 15.6 59 100.7 133.5 125 3 3 Champion White Pearl 48.8 48.5 .56 17.4 57.5 98.1 122.2 116.2 3 Funk Hybrid G125 46.1 46.0 .25 14.3 68.5 116.9 115.9 116.2 Average of 5 open-pollinated varieties. . . 48.4 48.1 .48 16.2 56.4 96.3 121.2 115.1 5 Waddell Utility White Dent 47.5 47.3 .45 14.3 58 99.0 119.1 114.1 6 Funk Hybrid G90 44.8 44.6 .45 11.9 66 112.6 112.3 112.4 7 'Illinois Hybrid 863 (Illini) 46.4 45.9 1.04 13.8 60 102.4 115.6 112.3 7 'DeKalb Hybrid 832 44.6 44.3 .70 15.0 67 114.4 111.6 112.3 7 'DeKalb Hybrid 922 (W) 44.4 44.3 .36 14.9 67 114.4 111.6 112.3 10 Illinois Hybrid 877 (Illini) 46.2 45.8 .69 12.3 60 102.4 115.4 112.2 11 'DeKalb Hybrid 915 (W) 44.7 44.3 1.00 14.5 66.5 113.5 111.6 112.1 12 DeKalb Hybrid 830 42.9 42.6 .66 15.0 70.5 120.3 107 3 110.6 13 Funk Hybrid G94 43.8 43.4 .97 10.6 66.5 113.5 109.3 110.4 14 'Pioneer Hi-Bred 305A 47.3 47.0 .66 14.5 50 85.3 118.4 110.1 15 Moore Yellow Dent 46.0 45.9 .18 15.3 54.5 93.0 115.6 110.0 16 Blackhawk (Kruetzberg) 45.9 45.9 .01 18.3 53 90.5 115.6 109.3 17 Funk Hybrid fU6 . . . 45.1 45.0 .32 14.0 56.5 96.4 113.4 109.2 18 'National Hybrid 132 41.0 40.8 .53 12.9 73.5 125.5 102.8 108.5 19 Funk Hybrid G49 43.7 43.3 .82 11.9 61 5 105.0 109.1 108.1 20 'DeKalb Hybrid 907 (W) 42.8 42.6 .39 14.1 64 109.2 107.3 107.8 21 'DeKalb Hybrid 918 (W) 42.4 42.2 .39 13.1 65 110.9 106.3 107.5 22 DeKalb Hybrid 823 41.0 41.0 .06 12.0 68 116.1 103 3 106.5 23 'lowealth Hybrid 30 40.9 40.8 .16 12.6 68 116.1 102.8 106.1 24 DeKalb Hybrid 828 41.1 41.0 .27 12.2 66.5 113.5 103.3 105.9 25 'Funk Hybrid G85 41.3 41.1 .42 11.7 63 107.5 103.5 104.5 26 DeKalb Hybrid 831 40.4 40.2 .60 12.6 64.5 110.1 101.3 103.5 27 'DeKalb Hybrid 917 (W) 40 3 39.8 1.30 17.4 59 100.7 100.3 100.4 28 DeKalb Hybrid 817 40.2 40.2 .07 11.7 56.5 96.4 101.3 100.1 29 Illini Hybrid 455 41.7 41.5 .43 12.1 49 83.6 104.5 99.3 30 DeKalb Hybrid 821B 39.8 39.7 .18 14.2 54.5 93.0 100.0 98.3 31 'Funk Hybrid G95 37.6 37.5 .20 12.1 61 104.1 94.5 96.9 31 'lowealth Hybrid 27 36.6 36.5 .27 11.9 65.5 111.8 91.9 96.9 33 Funk Hybrid G56 37.6 37.4 .62 10.1 60.5 103.3 94.2 96.5 34 lowealth Hybrid 53 37.0 36.9 .20 11.7 62.5 106.7 92 9 96.4 35 'Illini Hybrid 233 37.5 37.4 .22 10.7 60 102.4 94.2 96.3 36 Pioneer Hi-Bred 307 37.3 37.1 .52 10.6 60 102.4 93.5 95.7 37 'Funk Hybrid G92 37.8 37.6 .51 13.5 51.5 87.9 94.7 93.0 37 'Funk Hybrid G50 36.4 36.0 1.13 14.3 58.5 99.8 90.7 93.0 39 lowealth Hybrid 50 37.6 37.6 .01 11.9 50 85.3 94.7 92.4 39 Pfister-Stiegelmeier Hybrid 160 35.0 34.7 .82 11.0 63 107.5 87.4 92.4 41 DeKalb Hybrid 827 36.7 36.6 .15 11.9 54 92.2 92.2 92.2 42 National Hybrid 131 33.9 33.8 .27 10.9 63 107.5 85.1 90.7 43 DeKalb Hybrid 870 35.4 35.3 .24 13.0 55 93.9 88.9 90.2 44 Funk Hybrid G62 36.5 36.3 .51 11.8 50 85.3 91.4 89.9 45 'Pioneer Hi-Bred 312 34.9 34.8 .38 11.2 56 95.6 87.7 89.7 46 *niini Hybrid 222 34.9 34.6 .74 13.0 56 95.6 87.2 89.3 47 'Illini Hybrid 422. ... 35.4 35.4 .08 14.1 50 85.3 89.2 88.2 48 'Mangelsdorf Hybrid XX fl 34.7 34.6 .40 11.5 52 88.8 87.2 87.6 49 DeKalb Hybrid 871 33.1 33.1 .14 11.0 54 92.2 83.4 85.6 50 Pfister-Stiegelmeier Hybrid 375R 32.2 32.1 .28 10.7 52.5 89.6 80.9 83.1 51 Pioneer Hi-Bred 313 33.3 33.2 .40 11.3 46 78.5 83.6 82.3 52 Funk Hybrid G244 33.3 33.2 .25 10.7 43.5 74.2 83.6 81.3 53 National Hybrid 130 32.0 31.9 .31 11.3 47.5 81.1 80.4 80.6 54 Pioneer Hi-Bred 317 28.3 28.1 .61 11.7 62 105.8 70.8 79.6 55 Pfister-Stiegelmeier Hybrid 360A 30.1 30.0 .30 10.6 50.5 86.2 75.6 78.3 56 Pfister-Stiegelmeier Hybrid 365 32.0 31.9 .24 10.9 36 61.4 80.4 75.7 Average of all entries 39.9 39.7 .45 12.9 58.6 'Less than 5 bushels of seed sampled. (See page 262 for two-year summary of results on this field.) Less than 5.3 bushels difference between total yields of any two entries in this table is not considered significant. 264 BULLETIN No. 450 [January, Table 13. SOUTHEASTERN ILLINOIS: Albion Damaged Mois- Rating for . atiollod . r< I Total Sound sample harvest plants yield perform. 1938 bu. fru. perct. perct. perct. perct. perct. 1'tFunk Hybrid G528W 97.5 97.3 22 13.0 81 91.8 120.2 113.1 2*tDeKalb Hybrid 922 (W) 92.3 92.3 .05 16.0 91 103.1 114.0 111.3 3'tDeKalb Hybrid 918 (W) 4*tM-L Hybrid 850 (Moews-Lowe) 88.4 89.1 88.4 88.8 .35 14.7 13.1 93 89 105.3 100.8 109.2 109.7 108.2 107.5 5 tlllinois Hybrid 784 (Illini) 89.5 89.1 .42 16.8 88 99.7 110.0 107.4 6 tFunk Hybrid G125 90.4 89.2 1.28 12.1 87 98.6 110.2 107.3 6*fFunk Hybrid G527W 89.8 88.7 1.18 14.0 89 100.8 109.5 107.3 8'tlllini Hybrid 211 87.0 86.8 .20 12.9 91 103.1 107 2 106.2 8*fDeKalb Hybrid 915 (W) 87.7 86.6 1.21 12.9 92 104.2 106.9 106.2 10'tFunk Hybrid G86 86.3 86.2 .10 13.6 90 101.9 106.5 105.4 11 Pioneer Hi-Bred 313 86.1 84.8 1.52 13.3 94 106.5 104.7 105.2 12 tFunk Hybrid G94 86.2 84.7 1.88 13.1 93 105.3 104.6 104.8 13*tCrow Hybrid 804 85.0 84.9 .07 11.7 92 104.2 104.8 104.7 14*tCrow Hybrid 701W 85.3 85.1 .24 14.2 90 101.9 105.1 104.3 15 fSt. Charles White 84.9 84.7 .20 14.8 89 100.8 104.6 103.7 16*fDeKalb Hybrid 917 (W) 86.1 83.5 3.07 16.4 88 99.7 103.1 102.3 17 DeKalb Hybrid 821B 85.6 83.4 2.61 11.9 87 98.6 103.0 101.9 17*tIHini Hybrid 233 83.8 83.4 .45 11.7 87 98.6 103.0 101.9 19 tFunk Hybrid G90 86.4 83.2 3.65 13.0 87 98.6 102.7 101.7 20*tFunk Hybrid G95 84.7 83.9 .94 12.7 84 95.2 103.6 101.5 21 tWilson Yellow Dent 84.6 83.4 1.46 13.1 84 95.2 103.0 101.1 22 tDeKalb Hybrid 817 82.3 81.2 1.38 12.1 89 100.8 100.3 100.4 23 tPfister-Stiegelmeier Hybrid 375R 81.3 80.2 1.32 13.5 91 103.1 99.0 100.0 24*tPioneer Hi-Bred 305A 83.2 80.3 3.45 14.5 89 100.8 99.2 99.6 24 tDeKalb Hybrid 823 79.9 79.7 .25 11.3 91 103.1 98.4 99.6 26 tDeKalb Hybrid 628 81.3 79.9 1.72 11.4 87 98.6 98.7 98.7 26 DeKalb Hybrid 828 80.7 79.7 1.25 12.4 88 99.7 98.4 98.7 28 tDeKalb Hybrid 831 79.5 79.4 .15 13.4 87 98.6 98.1 98.2 Average of 5 open-pollinated varieties. . . 81.0 80.5 .55 14.5 83 94.0 99.5 98.1 29*tlowealth Hybrid 30 78.6 78.4 .21 13.6 90 101.9 96.8 98.1 30 tFunk Hybrid G56 79.0 78.9 .18 12.7 88 99.7 97.4 98.0 31 tlowealth Hybrid 53 77.6 77.5 .13 10.7 92 104.2 95.7 97.8 32 tlllinois Hybrid 960 (Holmes) 79.1 78.9 .24 11.4 87 98.6 97.4 97.7 33 tUlini Hybrid 411 77.9 77.9 11.4 89 100.8 96.2 97.4 33 tDeKalb Hybrid 830 77.2 77.0 .26 12.6 92 104.2 95.1 97.4 35 'Funk Hybrid G50 80.1 77.8 2.86 12.7 89 100.8 96.1 97.3 36 tLeaming (Neville) 80.0 79.5 .64 16.8 83 94.0 98.2 97.2 36*tDeKalb Hybrid 832 79.7 77.1 3.25 15.0 91 103.1 95.2 97.2 36*tNational Hybrid 132 77.7 76.8 1.16 11.7 92 104.2 94.8 97.2 39 DeKalb Hybrid 827 78.9 76.5 3.10 11.9 87 98.6 94.5 95.5 40 tDeKalb Hybrid 870 78.5 76.2 2.87 11.7 86 97.4 94.1 94.9 41 tWaddell Utility White Dent 78.5 78.4 .17 14.5 78 88.4 96.8 94.7 42 tNational Hybrid 131 75.0 74.5 .70 11.2 91 103.1 92.0 94.1 43 tBeckerle Yellow Dent 76.9 76.7 .26 13.1 81 91.8 94.7 94.0 44*tPioneer Hi-Bred 312 74.8 74.4 .50 12.6 88 99.7 91.9 93.9 45 tPioneer Hi-Bred 317 74.0 73.1 1.15 11.0 89 100.8 90.3 92.9 46 tlowealth Hybrid 50 73.4 73.4 .05 11.7 87 98.6 90.6 92.6 47 tNational Hybrid 130 73.7 72.9 .12 11.3 87 98.6 90.0 92.2 48*tFunk Hybrid G92 75.8 73.1 3.55 12.1 85 96.3 90.3 91.8 49 tDeKalb Hybrid 871 71.2 71.1 .16 11.2 88 99.7 87.8 90.8 50 tFunk Hybrid G244 70.3 69.9 .55 11.8 86 97.4 86.3 89.1 81 9 81 1 05 12 9 88 3 Average yield of entries grown in 1937 and 1938 1 Funk Hybrid G86. ... 89.2 89.1 .05 15.2 87.5 114.8 108.0 109.7 2 Funk Hybrid G95 87.8 86.9 .52 15.9 79.5 104.3 105.3 105.1 3 Illinois Hybrid 960 87.4 86.9 .58 14.7 79.3 104.1 105.3 105.0 4 Funk Hybrid G90 85.9 84.3 1.84 16.7 85.5 112.2 102.2 104.7 5 DeKalb Hybrid 870 86.3 85.0 1.66 14.1 79.0 103.7 103.0 103.2 6 St. Charles White 87.0 86.1 .99 17.9 71.8 94.2 104.4 101.9 7 DeKalb Hybrid 871 81.1 80.5 .70 13.6 81.0 106.3 97.6 99.8 8 Wilson Yellow Dent 83.0 82.1 1.03 15.5 71.0 93.2 99.5 97.9 9 Funk Hybrid G244 79.6 79.1 .61 14.9 77.8 102.1 95.9 97.5 10 Funk Hybrid G92 80.8 78.5 2.91 15.6 79.3 104.1 95.2 97.4 Average of 5 open-pollinated varieties . . . 82.0 81.2 .89 17.9 67.6 88.7 98.4 96.0 11 Learning 83.6 82.2 1.59 20.5 61.3 80.4 99.6 94.8 12 Beckerle Yellow Dent 72.1 71.7 .61 15.2 70.8 92.9 86.9 88.4 Average of all entries 83.6 82.5 1.07 15.9 76.2 'Less than 5 bushels of seed sampled, t Average of 9 plots instead of 10. Less than 3.7 bushels difference between total yields of any two entries in this table is not considered significant. 1939] ILLINOIS CORN PERFORMANCE TESTS 1938 265 Table 14. EXTREME SOUTHERN ILLINOIS: Elizabethtown l):im:ii!.- d Mois- Rating for shelled Total Sound sample harvest plants yield perform. 1938 bu. bu. perct. perct. perct. perct. perct. 1 Funk Hybrid G56 67.6 66.8 1.24 12.6 82.5 98.6 123.4 117.2 2 'DeKalb Hybrid 915 (W) 64.5 62.0 3.80 13.5 90 107.6 114.5 112.8 3 'DeKalb Hybrid 922 (W) 64.7 60.2 7.02 14.2 88.5 105.8 111.2 109.9 4 lowealth Hybrid 53 61.8 60.9 1.52 10.7 83 99.2 112.5 109.2 5 'Pioneer Hi-Bred 305A 60.8 58.9 3.20 14.5 85.5 102.2 108.8 107.2 6 Funk Hybrid G94 58.5 57.6 1.50 12.5 88.5 105.8 106.4 106.3 7 Illinois Hybrid 960 (Holmes) 61.7 58.7 4.86 11.9 83 99.2 108.4 106.1 8 Pioneer Hi-Bred 313 59.9 58.0 3.24 12.7 86 102.8 107.1 106.0 9 Funk Hybrid G49 60.9 57.8 5.03 12.7 85 101.6 106.7 105.4 10 'DeKalb Hybrid 720 (W) 58.5 57.1 2.39 13.4 87 104.0 105.5 105.1 11 'Funk Hybrid G86 58.8 56.3 4.22 12.9 86 102.8 104.0 103.7 12 DeKalb Hybrid 830 57.1 55.7 2.50 13.0 87 104.0 102.9 103.2 13 Funk Hybrid G62 59.1 57.4 2.82 13.6 79 94.4 106.0 103.1 14 DeKalb Hybrid 870 57.7 57.2 .87 12.7 76.5 91.4 105.6 102.1 15 'Funk Hybrid G50 58.2 56.4 3.07 13.1 79.5 95.0 104.2 101.9 16 'DeKalb Hybrid 909 (W) 55.6 54.3 2.26 13.8 87.5 104.6 100.3 101.4 17 Illinois Hybrid 960 (Morgan) 58.0 55.5 4.28 12.3 80 95.6 102.5 100.8 17 'DeKalb Hybrid 919 (W) 55.2 54.2 1.80 13.0 88 102.8 100.1 100.8 17 DeKalb Hybrid 828 54.8 54.2 1.02 13.5 86 102.8 100.1 100.8 20 St. Charles White (Isenberg) 56.9 53.8 5.47 12.3 87.5 104.6 99.4 100.7 21 'lowealth Hybrid 30 56.8 54.0 4.97 11.7 86.5 103.4 99.7 100.6 22 Funk Hybrid G244 55.5 54.5 1.83 13.1 82.5 98.6 100.7 100.2 23 Pfister-Stiegelmeier Hybrid 375R 24 Funk Hybrid G125 56.9 53.0 54.6 52.4 4.00 1.06 12.3 12.4 82 90 98.0 107.6 100.8 96.8 100.1 99.5 25 Funk Hybrid G90 55.5 54.0 2.62 14.8 82.5 98.6 99.7 99.4 26 'Illinois Hybrid 863 (Illini) 56.2 54.3 3.41 13.1 79.5 95.0 100.3 99.0 27 Funk Hybrid G46 54.5 53.3 2.21 13.9 84 100.4 98.4 98.9 28 DeKalb Hybrid 821B 54.4 53.1 2.40 12.7 83 99.2 98.1 98.4 29 Blackhawk (Kruetzberg) 52.6 52.5 .10 14.5 85 101.6 97.0 98.2 30 Learning (Neville) 53.8 51.7 3.84 17.8 84 100.4 95.5 96.7 31 DeKalb Hybrid 831 50.2 49.7 .94 13.6 88 105.2 91.8 95.2 Average of 5 open-pollinated varieties. . . 51.8 50.0 3.30 14.0 85.2 101.8 92.3 94.7 32 DeKalb Hybrid 628 52.4 51.8 1.14 11.3 76.5 91.4 95.7 94.6 32 'DeKalb Hybrid 832 50.2 49.3 1.80 12.5 88 105.2 91.1 94.6 34 DeKalb Hybrid 817 51.9 50.7 2.25 11.0 80 95.6 93.6 94.1 35 DeKalb Hybrid 871 52.0 51.4 1.08 13.1 76.5 91.4 94.9 94.0 36 Morgan Hybrid 52 50.8 50.5 .61 10.7 80 95.6 93.3 93.9 37 Local Variety 52.0 48.8 6.08 12.6 84.5 101.0 90.1 92.8 38 'Pioneer Hi-Bred 312 50.9 50.0 1.78 11.7 77.5 92.6 92.3 92.4 39 DeKalb Hybrid 823 47.3 46.7 1.18 10.7 86.5 103.4 86.2 90.5 40 'Funk Hybrid G92 47.9 47.5 .82 13.5 80 95.6 87.7 89.7 41 lowealth Hybrid 50 48.1 47.3 1.69 11.7 79 94.4 87.4 89.2 42 Beckerle Yellow Dent 43.5 43.1 .99 13.0 85 101.6 79.6 85.1 55 6 54 2 2 59 12 9 83 7 Average yield of entries grown in 1937 and 1938 bu. bu. perct. perct. perct. perct. perct. 1 Funk Hybrid G56. .. 69.6 68.6 1.44 13.6 70.3 95.6 112.8 108.5 2 Illinois Hybrid 960 69.0 67.2 2.84 12.9 69.5 94.6 110.5 106.5 3 Funk Hybrid G49 68.0 65.7 3.51 13.5 71.5 97.3 108.1 105.4 4 Funk Hybrid G46 59.8 58.7 1.85 14.1 84.5 115.0 96.5 101.1 5 Illinois Hybrid 863 63.0 61.9 1.92 13.6 70.8 96.3 101.8 100.4 6 Funk Hybrid G62 64.2 63.0 1.99 13.9 61.5 83.7 103.6 98.6 7 Learning 57.3 56.1 2.23 17.5 79.0 107.5 92.3 96.1 8 St. Charles White 56.2 54.5 3.02 14.5 84.3 114.7 89.6 95.9 9 Funk Hybrid G244 58.7 58.0 1.18 13.6 71.3 97.0 95.4 95.8 10 Funk Hvbrid G92 55 1 54.5 1.06 13.6 72.5 98.6 89.6 91.9 Average of all entries 62.1 60.8 2.10 14.1 73.5 'Less than 5 bushels of seed sampled. Less than 12.4 bushels difference between total yields of any two entries in this table is not considered significant. 266 BULLETIN No. 450 [January, RESULTS IN SOIL ADAPTATION TESTS The study of the behavior of corn hybrids in relation to soil fertility undertaken in 1935 was continued in 1938 at Sibley and Urbana, both places offering particularly good opportunity to grow the hybrids on plots of soil varying in fertility. Soils. In the Sibley test the less fertile area is a poor grade of Elliott silt loam soil, somewhat eroded, and very gray. The highly productive area is the soil type known as Drummer clay loam. At Urbana, the two areas selected for test differed in productive capacity as a result of the long-continued use of different cropping systems. The more productive area, known as the Southwest rotation, Table 15. SOIL ADAPTATION TEST: Central Illinois, Sibley Rank Entry Total Moisture Percent acre in grain erect yield at harvest plants Rating for Erect plants General perform. ELLIOTT SILT LOAM: Productivity low (Farm 92) Total yield DRUMMER CLAY LOAM: Productivity high (Farm 41) 1 Funk Hybrid G94. . . 78.2 19.2 92 107 4 113 .7 115.8 2 U. S. Hybrid 13 (Ohio) 76.5 20.8 92 107 4 111 ,8 113 1 3 Funk Hybrid G212 71.9 19.5 90 105 106 1 106 1 1 U. S. Hybrid 44 (Moews) 71.9 19.4 84 98 104 4 106 5 1 Sibley Estate Hybrid 588 71.9 21.1 75 87, 5 101 8 106 5 t> (R4x4-8) (701x317) 70.7 18.8 80 93 4 101 9 104 .7 7 (R4x38-ll) (701x317) 70.6 19.6 88 102 7 104 1 104 6 8 Illinois Hybrid 960 (Shissler) 70.0 19.2 88 102 _y 103 .4 103 7 P Crow Hybrid 360A 67.7 20.2 90 105 101 5 100 3 10 DeKalb Hybrid D817 66.6 20.2 87 101 .6 99 .3 98 .6 11 U.S. Hybrid 5 (Mountjoy) 65.8 20.8 90 105 ,0 99 .8 97 4 12 Funk Hybrid G49 65.4 21.4 87 101 4 98. 96 y 13 Illinois Hybrid 1061 65.0 19.9 78 91 .0 95.0 96 3 14 (R4xPr) (701x317) 64.6 19.4 82 95 .7 95 .7 95 .7 15 Illinois Hybrid 546 (Morgan) 64.2 20.2 90 105.0 97 6 95 1 16 Sibley Estate Hybrid 753 , 64.1 20.8 88 102 7 96.9 94, 9 17 (WF9x38-ll) (R4xPr) 63.9 19.8 97 113 .2 99 .2 94 .0 18 U. S. Hybrid 35 (Holmes) 62.7 20.8 90 105 .0 95 .9 92 ,9 19 Illinois Hybrid 543 (Shissler) 60.1 20.8 87 101 5 92 1 89. 20 Station Yellow Dent 57.2 20.4 58 67 .7 80.4 84.7 Average 67.5 20.1 85.7 1 Funk Hybrid G212. . . 59.7 16.9 87 99. 1 108.9 112 _> 2 Crow Hybrid 360A 58.9 16.1 81 92 2 106.1 110 ,7 3 U. S. Hybrid 13 (Ohio) 58.6 19.2 95 108 2 109.7 110 2 8 (R4x4-8) (701x317) 58.6 16.2 89 101 4 108.0 110 .2 5 U. S. Hybrid 44 (Moews) 57.5 17.1 92 104 8 107.3 108 .1 1 (R4x38-ll) (701x317) 56.6 15.3 93 105 9 106.3 106 4 7 Funk Hybrid G94 55.9 22.0 91 103 6 104.7 105 1 8 Illinois Hybrid 1061 55.8 16.3 89 101 4 104.0 104 9 9 Illinois Hybrid 546 (Morgan) 54.2 17.9 83 94 5 100.0 101 9 10 Sibley Estate Hybrid 653 52.6 20.6 80 92 2 97.2 98 y 11 Illinois Hybrid 960 (Shissler) 52.5 19.4 92 104 8 100.2 98 .7 12 Illinois Hybrid 543 (Shissler) 52.2 19.8 85 96 8 97.8 98 ,1 13 Funk Hybrid G49 51.1 16.4 92 104 8 98.3 96 1 14 (R4xPr) (701x317) 50.2 19.8 87 99. 1 95.6 94 4 15 U. S. Hybrid 35 (Holmes) 50.0 17.9 97 110 5 98.1 94 .U 16 DeKalb Hybrid 817 49.0 19.1 88 100 2 94.1 92 1 17 (WF9x38-ll) (R4xPr) 48.8 16.9 87 99 ,1 93.6 91 .7 18 U. S. Hybrid 5 (Mountjoy) 48.4 19.4 92 104 8 94.4 91 IP Sibley Estate Hybrid 588 47.7 21.7 92 104 .8 93.5 89 .7 20 Station Yellow Dent 46.1 19.1 64 72. 9 83.1 86 .S 53 2 18 3 87 8 1939] ILLINOIS CORN PERFORMANCE TESTS 1938 267 Two hybrids on the same highly fertile soil Illinois Hybrid 960 (left) and U. S. Hybrid 13 (right) after strong winds at Urbana just previous to harvest. Many strains besides Illinois 960 were severely damaged also. Ears from the same hybrids as above, grown on soil of low fertility Illinois Hybrid 960 (left) and U. S. Hybrid 13 (right) on soil of low fertility, at Sibley, 1938. Here Illinois 960 was far ahead of U. S. 13 in ear and kernel characters. 268 BULLETIN No. 450 [January, Table ISA. THREE- AND FOUR- YEAR SUMMARIES: Soil Adaptation Test, Sibley Soil of high productivity Soil of low productivity Entry Acre Increase yield over open- pollinated Acre yield Increase over open- pollinated Four-year average 111.588... bu. 83 bu. 14 7 7 bu. 47 46 46 42 bu. 5 4 4 111. 546. .. 76 111. 543 76 Station Yellow Dent .... 69 Three-year average U. S. 44. 85 18 17 14 12 8 8 48 47 41 46 44 45 40 8 7 1 6 4 5 111.960... 84 U.S. 5... 81 111. 588 . 79 111.543... . . . .75 111.546 75 Station Yellow Dent 67 is under a cropping system of corn, oats, clover, and wheat, with a clover catch crop in the wheat. On the less productive area, known as the South-Central rotation, the cropping system is corn, corn, corn, and soybeans. Slightly more limestone has been applied to the South- west rotation ; otherwise the supplementary treatments of manure and phosphate on these two areas have been very similar. Season. Uniformly favorable seasonal conditions prevailed, for the most part, in these areas in 1938. At Sibley, however, Farm 41, the highly productive area, was subjected in late summer to a devastat- ing windstorm which caused severe lodging of some entries. At Urbana a strong wind just previous to harvest caused severe lodging on the Southwest rotation but did not affect the South-Central rotation to any great extent. 1938 Results. Again the hybrids demonstrated that their su- periority in yield over open-pollinated corn is greater on highly fertile soil than on relatively poor soil. At Sibley the rive best hybrids outyielded the open-pollinated variety by 17.9 bushels an acre on the better soil, while on the poorer soil the difference was only 12.7 bushels. At Urbana the difference between the hybrids and the open-pollinated variety on the more fertile soil was not so great as at Sibley, nor so great as in other years at Urbana. The five best hybrids at Urbana averaged only 12.2 bushels an acre more at the high fertility level than the open-pollinated variety. On the medium-fertility level, however, the five best hybrids were 17 bushels better than the open-pollinated variety. All conditions on the high-productivity level at Urbana were ideal for corn production thruout the season, and the open-pollinated variety made the very high yield of 106.4 bushels an acre. 1939] ILLINOIS CORN PERFORMANCE TESTS 1938 269 Table 16. SOIL ADAPTATION TEST: Central Illinois, Urbana Rating for i:nir. Entry acre in grain erect Erect General Total yield at harvest plants plants perform. yield MUSCATINE SILT and CLYDE CLAY LOAM: Productivity high (Southwest rotation) 1 U. S. Hybrid 5 (Mountjoy) . . . 119 6 13.8 95 121 8 108 9 104, 8 2 U. S. Hybrid 13 (Ohio) 119 5 14.1 95 121 8 108 ,8 104, ,7 3 U. S. Hybrid 44 (Moews) 118 8 13.7 70 89 4 100 ,4 104 ,1 4 (R4x38-ll) (701x317) 117 .8 13.2 80 102 ,2 103 ,0 ioa. 2 6 (\VF9x38-ll) (R4xPr) 117 3 13 2 95 121 ,8 107 ,4 102 ,8 . ( Crow Hybrid 360A 117, 13.4 80 102 2 102 ,4 102 I 7 Funk Hybrid G212 116 2 13.8 70 89 ,4 98 ,7 101 ,8 8 Funk Hybrid G94 115 6 14.0 95 121 8 106 I 101 ,8 9 DeKalb Hybrid D817 115 5 13.4 95 121 8 106 ,2 101 2 10 U. S. Hybrid 35 (Holmes) 114 .1 13.6 95 121 .8 105 3 100.0 11 Funk Hybrid G49 114 13.7 85 108 ,8 102 99 i 12 Illinois Hybrid 1061 112 9 12.9 70 89 4 9fi 8 98 ,9 ta Sibley Estate Hybrid 753 112 .6 13.9 50 63 .9 90.0 98 ,7 14 (R4xPr) (701x317) Ill .2 13.2 75 95 .8 97 97 ,4 15 Sibley Estate Hybrid 588 110 8 14.0 70 89 ,4 95 ,2 97 1 10 Illinois Hybrid 960 (Shissler) 108 6 13.2 50 63 ,9 87 4 95 .2 17 Station Yellow Dent 106 ,4 13.5 75 95 .8 93 .9 93.3 18 (R4x4-8) (701x317) 106 3 13.4 65 83 .0 90 .7 93 ,2 Average 114 ,1 13.6 78.3 MUSCATINE SILT LOAM: Productivity medium (South-Central rotation) 1 2 8 U.S. Hybrid 13... U. S. Hybrid 44 (Moews) Sibley Estate Hybrid 588 67.6 66.7 66.4 12.9 13.2 13.4 110.4 109.0 108.5 4 (R4x4-8) (701x317) 66.2 12.4 108.2 8 Funk Hybrid G94 64.1 13.4 H H E_ 104.7 ft Illinois Hybrid 960 (Shissler) 63.4 12.7 g H 103.6 7 Sibley Estate Hybrid 753 62.8 13.1 9 9 102.6 8 Funk Hybrid G212 62.6 12.6 H H 63 102.3 Crow Hybrid 360A 62.3 13.0 aj m 03 101.8 10 U. S. Hybrid 5 (Mountjoy) 61.3 13.2 P H 100.2 11 U. S. Hybrid 35 (Holmes) 60.7 12.9 2 9 9 99.2 12 Illinois Hybrid 1061 60.0 13.2 K I S 98.0 13 (R4x38-ll) (701x317) 59.9 12.5 97.9 14 DeKalb Hybrid D817 59.5 12.6 *a -i Hj 97.2 15 (R4xPr) (701x317) 59.1 12.7 < < < 96.6 16 (WF9x38-ll) (R4xPr) 56.0 12.8 91.5 17 Funk Hybrid G49 53.5 12.6 87.4 18 Station Yellow Dent 49.2 13.6 80.4 Average 61.2 12.9 Note. Ranking is made on basis of total yield because of wide differences in lodging on different productive levels. Averages. For the four years during which the soil-adaptation tests have been conducted, the average yield of all the hybrids included has been higher than the average yield of the open-pollinated variety at both Sibley and Urbana on each of the fertility levels tested. The difference between the averages has been greater on the more fertile soils than on the poorer soils. At Sibley the hybrids outyielded the open-pollinated variety by 2.5 bushels an acre on the low- fertility level and by 8.1 bushels an acre on the high- fertility level. At Urbana these differences were 9.2 bushels on the medium- fertility level and 10.9 bushels on the high- fertility level. These averages include all the hybrids grown during the four years, whether they were grown one year or four. Likewise when the averages include only those hybrids which have been in the tests the full four years (or three years, in the case of 270 BULLETIN No. 450 [January, the three-year summaries) the hybrids have shown a greater superiority over the open-pollinated variety on the fertile soils than on the poorer soils (Table ISA, page 268). The three hybrids grown at Sibley for four years outyielded the open-pollinated variety by 4.2 bushels an acre on the low- fertility level, and by 9.3 bushels on the high- fertility level. Those grown three years outyielded the open-pollinated variety by 5.1 bushels on the low- fertility level and by 12.8 bushels on the high- fertility level. Adaptation Involves More Than Total Yields. Total yield alone does not always give a true picture of adaptability. For example, such hybrids as U. S. 5, U. S. 13, and Illinois 546 often show very undesir- able ear and kernel development on the less fertile soils even tho they may yield well on such soils. Likewise, hybrids Illinois 960, U. S. 44, Illinois 588, and Illinois 543 show good types of ears and good kernel development on the thin soils, but when they are grown on more fertile soil lodging is often bad enough to make them very undesirable. Some of the characteristics on which adaptability is based are illustrated by the photographs on page 267. SUMMARY 1. The five best hybrids on all the ten fields in the 1938 Illinois corn-performance tests yielded an average of 15.5 bushels an acre above the five open-pollinated varieties. They also exceeded the open- pollinated varieties in percentage of erect plants by 13.2 points. 2. On nine of the ten test fields the five best hybrids exceeded the five open-pollinated varieties in yield of sound corn an acre, and on all ten fields they surpassed the open-pollinated varieties in percentage of erect plants. 3. In the northern, north-central, and central sections of the state, even the five poorest hybrids averaged above the five open- pollinated varieties in yield of sound corn. 4. In the northeastern, south-central, southern, southeastern, and extreme southern sections of the state the five poorest hybrids fell below the five open-pollinated varieties in yield of sound corn. 5. Two- and three-year summaries of results in the northeastern, northern, north-central, and central sections show that certain hybrids were definitely superior to the adapted open-pollinated varieties. 6. In the two-year summary of the south-central section, certain hybrids were distinctly superior to the open-pollinated varieties, but this was not true for the three-year summary, which included only two hybrid entries. 1939] ILLINOIS CORN PERFORMANCE TESTS 1938 271 7. Two-year summaries of the southeastern field at Albion and the extreme southern field at Elizabethtown show a small advantage for the hybrids over the open-pollinated varieties, while at Shobonier, in Fayette county, there was no advantage at all for the hybrids. 8. The average percentage of dropped ears on the east north- central field at Reddick was .92, and on the west-central field at Little- ton it was .55. A few hybrids dropped as many as 3.3 percent of their ears. Fifteen hybrids in the Reddick field and 10 hybrids in the Littleton field dropped 1 percent or more of their ears. 9. Corn rootworms were the only insects causing damage worthy of note on the 1938 fields. Many hybrids were above the average in resistance to two species of corn root worm, as indicated by data on lodging caused by these insects. 10. A combination of Stewart's disease and Diplodia stalk rot reduced yields as much as 50 percent in some localities in 1938, the most severe damage occurring in the south-central part of the state. On the test fields studied Reddick, Paxton, Sullivan, and Albion damage was most severe at Sullivan in south-central Illinois and at Albion in the southeastern section. At these locations disease severity was correlated with low yield. 11. The high-yielding hybrids appeared to be more susceptible to the above disease complex than the lower-yielding hybrids, tho there were exceptions. 12. Disease susceptibility appeared to be correlated most highly with earliness of maturity. The best recommendation for avoiding losses from the above disease complex is, therefore, to use hybrids or varieties that require the entire growing season for their full development. 13. The 1938 soil-adaptation tests, like those in the past, demon- strate the necessity of having fertile soil in order to take full advantage of the high-yielding capacity of good hybrids. Yield alone, however, is not always a complete index to the adaptability of a variety or hybrid to a given soil, for lodging, type of ear, and kernel formation may also be greatly influenced by productivity level. LOCATION OF 1938 TEST FIELDS KINGS L,. O GRAIN JESTS ON SOILS VARYING IN PRODUCTIVITY GRAIN TESTS OF COMMERCIAL ENTRIES * GRAIN TESTS OF EXPERIMENT STATION HYBRIDS 7 Ten fields, distributed so as to represent the more important climatic areas of the state, were used in the 1938 tests. In 1937 seventeen fields were used, but as the rankings on different fields within each section, except in the southern section, were about the same, it was decided that fewer fields could be used. The grain tests of the Station hybrids at Urbana are not included in this report. Further information about these fields is given on pages 228 and 229. 3,0001-3915731 23.0501-3915731 UNIVERSITY OF ILLINOIS-URBANA Q 630.7IL6B C002 BULLETIN. URBANA 445-4571938-39 30112019529285