XI B R.AR.Y OF THE UNIVERSITY Of ILLINOIS 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 The person charging this material is responsible for its return to the library from which it was withdrawn on or before the Latest Date stamped below.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 DEC 2 \ ?n04 L161 O-1096 Experimental CORN HYBRIDS 1954 TESTS By R. W. Jugenheimer Bulletin 584 UNIVERSITY OF ILLINOIS AGRICULTURAL EXPERIMENT STATION Location of regular experimental-hybrid test fields CONTENTS Page MATERIAL TESTED 3 MEASURING PERFORMANCE 6 RESULTS OF THE TESTS 7 NORTHERN ILLINOIS Double crosses (Table 2) 10 Single and double crosses ( Table 3 ) 13 NORTH-CENTRAL ILLINOIS Double crosses (Table 4) 14 Three-way and double crosses (Table 5) 17 CENTRAL ILLINOIS Double crosses (Table 6) 18 Single and double crosses (Table 7). 21 Three-way and double crosses (Table 8) 22 Blight-resistant three-way crosses ( Table 9 ) 23 SOUTH-CENTRAL ILLINOIS Double crosses (Table 10) 25 Three-way and double crosses (Table 11) 27 DOUBLE-CROSS HYBRID NUMBERS, PEDIGREES, AND INDEX (Table 12) 29 Acknowledgment is due W. T. Schwenk and Sons, Edwards, for providing land for one of the tests, and to Dr. W. C. Jacob, Professor of Agronomy, for valuable computational and statistical assistance. Urbana, Illinois January, 1955 Publications in the Bulletin series report the results of investigations made or sponsored by the Experiment Station EXPERIMENTAL CORN HYBRIDS: 1954 TESTS By R. W. JUGENHEIMER, Professor of Plant Genetics and Corn Research Coordinator THIS REPORT summarizes the results of tests of experi- mental corn hybrids conducted in 1954 by this Station. Trials were made at four locations: in DeKalb county in north- ern Illinois, in Peoria county in north-central Illinois, in Cham- paign county in central Illinois, and in Fayette county in south-central Illinois. These four locations are representative of the soil, rainfall, and length of growing season in their respective areas. Hybrids were compared for yield, maturity, resistance to lodging, and other agronomic characters. Only hybrids of similar maturity were tested on the same field. A familiar hybrid whose maturity was considered the standard for the group is named in each table heading. Since most of the hybrids whose performance is recorded here are not yet in commercial use, the information about them is of most value to producers of hybrid seed. The 1954 performance of hybrids available in commercial quantities to farmers is reported in Bulletin 585 of this Station. MATERIAL TESTED One hundred forty-seven different double-cross hybrids were grown at the four locations. Most of the Illinois hybrids were developed by the author. The seed was produced by controlled hand-pollination . Two sets of single crosses and four sets of three-way crosses differing in maturity were tested in 1954. One set of single crosses (Table 3) and all sets of three-way crosses (Tables 5, 8, 9, and 11) are a part of the "uniform" tests conducted cooperatively by corn-belt states, including Illinois, and the U. S. Department of Agriculture. Seed of the unreleased inbred lines involved in these crosses was contributed by the state or by the federal corn breeder who developed them. Single crosses whose performance 4 BULLETIN No. 584 [January, is reported in Table 7 were developed by the Illinois Station and tested only in Illinois. The following individuals are responsible at the present time for collecting seed of inbred lines, making the crosses, and dis- tributing crossed seed of the entries in the uniform tests: E. C. Rossman (Michigan), N. P. Neal (Wisconsin), and G. H. String- field (Ohio) Table 3; J. H. Lonnquist (Nebraska), R. W. Jugenheimer (Illinois), and G. F. Sprague (Iowa) Tables 5 and 8; M. T. Jenkins (U. S. Department of Agriculture), A. M. Brunson (Indiana), and A. J. Ullstrup (Indiana) Table 9; L. A. Tatum (Kansas), W. R. Findley (U. S. Department of Agriculture), and M. S. Zuber (Missouri) --Table 11. The University of Illinois does not produce hybrid seed corn in commercial quantities. If a hybrid gives satisfactory perform- ance, the parental lines are released for use by seedsmen. Hybrids that include new inbred lines are produced under the "delayed release" program adopted by most of the states in the corn belt. Multiplication of a new line is handled by the Station, and the production of single crosses in quantity is handled by the Illinois Seed Producers Association, Champaign, Illinois. After a satis- factory probationary period of two to five years, a new line is released to the public. Table 12 (see pages 29 to 32) lists the double-cross hybrids whose performance is shown in this report and the tables in which each appears. It also contains the pedigrees of the hybrids tested. In the pedigrees, the order of the single crosses and of the lines in the single crosses has no significance ; it does not indicate which should be used as seed or pollen parent in the production of a hybrid. Illinois yellow hybrids are numbered consecutively below 2000 and above 6000. White hybrids are numbered in the 2000 series; these are usually followed by the letter W. Hybrids that have performed well after wide testing in several corn-belt states have been designated AES (Agricultural Experiment Station) hybrids. Hybrids in the 600 series are similar to Illinois 1277 in maturity; those in the 700 series correspond in maturity to Illi- nois 21; those in the 800 series correspond to U. S. 13; and hybrids in the 900 series to Illinois 448. The letter A or B following an Illinois hybrid number indi- 1955] EXPERIMENTAL CORN HYBRIDS: 1954 TESTS 5 cates that the combination of inbred lines making up the hybrid has been rearranged or permuted. For example, if the original pedigree of an Illinois hybrid was (1X2) (3X4), the letter A following the number means that the hybrid was put together (1X3) (2X4), the letter B, (I X 4) (2 X 3). A difference in reciprocals is not recognized in this method. When a short dash (-) followed by a number occurs as part of an Illinois hybrid number, it means that a tested related line has been substituted for one of the inbred lines included in the original hybrid. Performance of three-way and single-cross hybrids is of in- terest to corn breeders, producers of hybrid seed corn, and to farmers. Characteristics of single crosses such as yield, stand- ability, seed size, shape, and quality definitely affect the practical production of hybrid seed corn. Some farmers are interested in growing single-cross and three-way-cross hybrids commercially because of their attractive appearance and extreme uniformity. Use of single-cross and three-way-cross data for the prediction of desirable double-cross combinations creates additional interest in the performance of single crosses. Prediction studies are an extremely valuable part of a re- search program. Methods are available to predict the perform- ance of the better hybrid combinations without making and testing large numbers of undesirable crosses. For example, 1,225 single crosses and 690,900 double crosses are possible with 50 inbred lines. However, by using single-cross performance data, the corn breeder can predict which of the many possible double- cross combinations are likely to be most desirable. The following six single crosses can be made with four inbred lines: A X B, A X C, A X D, B X C, B X D, and C X D. The average per- formance of the four non-parental single crosses gives the predicted performance of a specific double-cross hybrid. For instance, the average yields of the four single crosses A X C, A X D, B X C, and B X D give the predicted yield of double cross (A X B) (C X D). The procedure in predicting acre yields of two hybrids is shown on page 78 of Illinois Agricultural Ex- periment Station Bulletin 543. Similar predictions can be made for other characteristics. Predicted hybrid combinations, however, should always be thoroughly tested under field conditions before being put into commercial production. 6 BULLETIN No. 584 [January, Three-way crosses also provide useful predictions of the per- formance of double-cross hybrids. A large number of inbred lines can be compared, and the method is especially valuable where a desirable seed parent single cross is available for use as a tester. Three-way crosses provide information on specific hybrids and may often eliminate the time and expense required for testing inbred lines in top crosses and single crosses. The procedure in predicting acre yields and percentage of erect plants from three-way-cross data is shown below. The three-way-cross data are taken from Table 5. One hybrid is much more promising than the other hybrid. (Oh28xOh43)(B38xWF9) ( Oh28xOh43 )( N9206xOh5 ) Percent Percent Bushels of Bushels of per erect per erect acre plants acre plants (Oh28XOh43)XB38 119 93 (Oh28XOh43)XN9206 99 58 (Oh28XOh43)XWF9 106 92 (Oh28XOh43)XOh5 96 77 2 | 225 2 1 185 2 [ 195 2 | 135 Prediction 112.5 92.5 Prediction 97.5 67.5 MEASURING PERFORMANCE All plots in these tests were planted, thinned, and harvested by hand in well-fertilized fields prepared in the usual way for corn. Individual plots were 2x5 hills in area. Six kernels were planted in hills spaced 40 inches apart. The plots were thinned to four plants per hill at DeKalb, Peoria, and Champaign, and to three per hill at Brownstown. General information including dates of planting and harvest- ing is given in Table 1. Lattice-square designs were used to ob- Table 1. GENERAL INFORMATION: Tests of Illinois Experimental Corn Hybrids, 1954 County* N Section Ci umber repli- ations Number of hills per plot Plants per hill Date of Planting Har- vesting DeKalb Northern North-Central . Central South-Central 4 4 4 4 10 10 10 10 4 4 4 3 May 13 May 17 May 11 May 18 Oct. 19 Oct. 14 Nov. 4 Nov. 9 Peoria Champaign . . . Fayette 'The fields are located near the following cities and towns: in DeKalb county near DeKalb, in Peoria county near Peoria, in Champaign county near Urbana, and in Fayette county near Brownstown. 1955} EXPERIMENTAL CORN HYBRIDS : 1954 TESTS 7 tain the data reported in Tables 2, 3, 4, 6, 7, and 10. The data in Tables 5, 8, 9, and 11 were obtained in randomized blocks. Four replications were grown of each entry. RESULTS OF THE TESTS Data obtained from the tests are summarized in Tables 2 to 11. Long-time averages are more reliable indexes of the perform- ance of hybrids than a single year's result. The parts of the tables summarizing the results of two or more years therefore deserve the most weight when the results are studied. Hybrids are listed in the tables in the order of their yield. Acre yields are reported as shelled grain containing 15.5 percent moisture, the maximum allowable for No. 2 corn. The crop from one replication of each entry at each location was shelled to determine the shelling percentage and moisture percentage. The percentage of moisture in the shelled grain was obtained with a Steinlite moisture meter. Erect plants at harvest and stand were determined from actual counts on all replications of each test. Data from all plots are included in the report on yield. The only correction for imperfect stands was the following adjust- ment for missing hills: /Number of hills \ /0.3 X Number of missing \ Corrected Field Vper plot / ~ Vhills per plot / weight ~ weight /Number of hills \ _ /Number of missing \ Vper plot / Vhills per plot / This adjustment adds 0.7 percent of the average hill yield for each missing hill, and assumes that 0.3 percent is made up by the increased yield of surrounding hills. Relative performance cannot be determined with absolute accuracy by any method of testing. Small differences between entries are seldom of any significance. In fact, small differences are to be expected among plots planted even with the same lot of seed. Variations in growing conditions such as soil fertility are reduced but not completely eliminated by replicating the same entry several times in the same test. Unavoidable variation may be determined by a mathematical procedure known as analysis of variance. From this procedure a figure may be ob- tained that represents the number of bushels by which two en- tries must differ in yielding ability before they can be considered 8 BULLETIN No. 584 [January, significantly different. Note, for example, in Table 2E that unless any two entries differ by at least 10 bushels per acre there is no statistical difference between them in yielding ability. The season was favorable for corn at DeKalb and Peoria. The growing season at Urbana was hot and dry, with resulting low yields. Yields were unusually low at Brownstown because of the extremely hot and dry growing season. The following double crosses were average or better in yield and standability, and average or earlier in maturity ai measured by the percent of moisture in the grain. The hybrids are arranged in order of yield. Northern Illinois Five-year average (Table 2A)--I11. 1289, 111. 1555A, 111. 1559B, IU. 1557, 111. 1560A. Four-year average (Table 2B) 111. 1289, AES 702, 111. 1555A, 111. 1557, 111. 1558, 111. 1559B, 111. 1279. Three-year average (Table 2C) 111. 1277, 111. 1279, 111. 1555A. Two-year average (Table 2D) 111. 1289, 111. 1555A, 111. 1279. 1954 results (Table 2E) 111. 21, 111. 1555A, AES 702, 111. 1289, 111. 2247W, 111. 1279, 111. 101, 111. 1864, IU. 1560A. North-Central Illinois Five-year average (Table 4A) 111. 1555A, 111. 1560A. Four-year average (Table 4B) 111. 274-1, 111. 1575, 111. 1555A. Three-year average (Table 4C) 111. 274-1, 111. 1575, 111. 1555A, 111. 1277. Two-year average (Table 4D) 111. 1332, IU. 274-1, 111. 1511, 111. 1555A, 111. 1575. 1954 results (Table 4E) 111. 1511, 111. 1332, IU. 1919, 111. 1617, 111. 1905, 111. 274-1, 111. 1875, 111. 1914, 111. 1555A, 111. 1896A. Central Illinois Five-year average (Table 6A) 111. 1332, 111. 972A-1. Four-year average (Table 6B) 111. 1511, 111. 1421, 111. 1332, 111. 972A-1, 111. 1777. 1955] EXPERIMENTAL CORN HYBRIDS: 1954 TESTS 9 Three-year average (Table 6C) 111. 1332, AES 801, 111. 972A-1, AES 802. Two-year average (Table 6D) 111. 1332, AES 802, AES 801, 111. 21, Ohio 4808. 1954 results (Table 6E) 111. 1896, 111. 1913, 111. 1919, 111. 1911, 111. 1777, 111. 1332, 111. 1908, 111. 1915, 111. 1909, AES 801, 111. 21. South-Central Illinois Five-year average (Table 10A) 111. 1539A, 111. 1349, 111. 1332. Four-year average (Table 10B) 111. 1332, 111. 1656, 111. 1349, 111. 1539A. Three-year average (Table IOC) 111. 1656, 111. 1332, 111. 1349. Two-year average (Table 10D) 111. 1859, 111. 2246W, 111. 1332, 111. 1656, 111. 6076, AES 803, 111. 1349, 111. 1893. 1954 results (Table 10E) 111. 1656, 111. 1332, 111. 1859, 111. 1539A, 111. 1856, 111. 1852, 111. 2246W, 111. 1349, 111. 1893, Mo. 804, 111. 1771, AES 805, 111. 1914, 111. 1896. 10 BULLETIN No. 584 [January, Table 2. DOUBLE CROSSES OF ILLINOIS 1277 MATURITY Tested in Northern Illinois, 1950-1954 (Entries in boldface were average or better in yield and standability and average or earlier in maturity) Rank in Entry yield A Mois- yiel ture - in gram Shelling Erect plants Stand Ear height A Five-year averages, 1950-1954 bu. perct. perct. perct. perct. in. 1 111. 1289 101 24 78 96 98 36 2 111. 1277 99 24 78 94 98 39 3 111. 1575 99 26 78 97 99 39 4 111. 1555A 98 21 80 96 97 38 5 111. 1559B 98 23 78 98 98 33 6 111. 1557. . 98 24 76 98 96 35 7 111. 1560A 97 23 79 100 98 36 8 111. 1279 97 24 78 95 98 39 9 111. 1280 97 24 78 95 97 37 10 111. 1290 97 25 78 95 95 39 11 111. 1091A.. . 96 26 77 96 98 40 12 111. 1558 95 26 76 98 97 34 13 111. 101 94 24 77 97 97 37 14 111. 21 94 27 76 94 98 46 15 111. 1375 92 23 78 96 98 35 16 111. 1595 92 24 77 97 98 41 Average 96 24 78 96 98 38 B Four-year averages , 1951-1954 1 111. 1493. . 109 26 79 98 97 40 2 111. 1289 108 24 78 96 97 36 3 111. 1575 108 27 77 97 98 40 4 111. 1277 107 24 78 95 97 40 5 AES 702 107 24 75 96 99 42 6 111. 1555A. 106 22 80 96 98 41 7 111. 1280 106 24 78 95 97 38 8 111. 1557 106 24 76 98 96 36 9 111. 21 106 26 76 94 97 48 10 111. 1558 105 25 77 98 97 36 11 111. 1559B. . 104 24 78 98 98 35 12 111. 1279 104 25 78 96 98 39 13 111. 1290 104 25 78 94 96 39 14 111. 101 104 26 78 97 98 38 15 111. 1560A 103 24 78 100 98 37 16 111. 1091A.. . 103 27 77 95 97 40 17 111. 1281 102 26 78 96 97 36 18 111. 1585 101 24 77 94 94 37 19 Ohio K24 100 22 80 95 95 37 20 111. 1579 100 24 79 97 98 34 21 111. 1595. . 99 25 77 97 97 42 22 111. 1375 98 24 78 96 98 34 Average 104 25 78 96 97 38 (Table is continued on next page) 1955} EXPERIMENTAL CORN HYBRIDS: 1954 TESTS 11 Table 2. Continued Rank in Entry yield APFP Mois- vield ture . in yiel grain Shelling Erect plants Stand Ear height C Three-year averages, 1952-1954 bu. perct. perct. perct. perct. in. 1 111. 21 120 22 79 95 97 47 2 111. 1575 120 23 79 99 98 40 3 111. 1277 119 21 79 96 97 39 4 AES702 119 23 77 97 98 41 5 111. 1493 118 23 77 98 97 38 6 111. 1289. . 118 25 78 96 97 37 7 111. 1279 117 20 79 96 98 38 8 111. 1280 117 21 80 95 95 38 9 111. 101 117 22 80 97 99 37 10 I.S.P. 2 117 24 76 99 99 37 11 111. 1557 116 23 78 98 96 37 12 111. 1559B 115 22 80 98 98 36 13 111. 1558 115 22 78 98 96 36 14 111. 1091A 115 23 78 95 96 41 15 111. 1555A 114 20 81 97 97 41 16 111. 1290. . 114 22 79 95 95 38 17 111. 1281 113 22 78 97 97 37 18 111. 1560A 112 21 78 99 97 37 19 111. 1585 Ill 21 78 93 94 37 20 Ind. 0421 109 19 81 97 99 37 21 111. 1579. . 109 20 79 96 96 34 22 111. 1595 109 21 77 98 98 41 23 Ohio K24 108 20 80 97 95 36 24 111. 1800 108 21 79 97 97 36 25 111. 1799 107 19 81 98 100 38 26 111. 1802. . 107 20 80 98 96 38 27 111. 1375 107 20 80 96 97 35 28 AES 610 105 20 80 93 96 31 29 Ohio M15 101 19 82 91 96 42 Average 113 21 79 96 97 38 D Two-year averages , 1953-1954 1 111. 1902. . 132 22 79 92 100 40 2 111. 1575 126 23 80 98 98 40 3 111. 21 124 21 79 94 96 46 4 111. 1277 124 22 80 95 96 39 5 111. 1493 124 23 79 98 96 38 6 111. 1861. . 123 20 82 94 98 37 7 111. 1559B 123 22 81 97 99 36 8 111. 1289 122 21 79 96 97 36 9 111. 101 122 22 81 96 98 36 10 111. 1863 122 23 80 96 98 34 11 111. 1557. . 122 23 79 96 96 36 12 111. 1555A 120 20 82 96 96 40 18 111. 1279 120 20 80 95 98 37 14 111. 1281 120 22 80 96 96 36 15 111. 1091A 120 22 78 93 96 40 16 AES 702... 120 22 77 96 98 40 17 111. 1865 118 22 80 96 96 34 18 111. 1866 118 22 80 94 97 36 19 111. 1280 118 22 80 93 96 37 20 111. 1585 117 21 80 90 97 36 21 I.S.P. 2... 117 24 77 98 99 36 22 Ind. 0421 116 20 82 96 98 37 23 111. 1560A 116 20 79 99 96 36 24 111. 1290 116 22 80 94 94 38 25 111. 1558 116 22 78 97 96 34 26 111. 1864 115 20 82 96 98 32 27 111. 1375 114 20 81 95 98 35 28 111. 1595 114 22 79 97 96 40 29 111. 6074 114 24 80 90 96 42 30 111. 1862 113 21 80 96 94 31 (Table is concluded on next page) 12 BULLETIN No. 584 [January, Table 2. Concluded Rank in yield Entry Acre yield Mois- ture in grain Shelling Erect plants Stand Ear height Dropped ears D Two-year averages, 1953-1954 (concluded) 31 111. 1579. . bu. Ill perct. 21 perct. 80 perct. 94 perct. 96 in. 34 perct. 32 111 1799 110 19 82 96 99 38 33 Ohio K24 110 20 82 96 94 36 34 111 1802 110 20 80 98 98 36 35 111 1800 . 108 21 80 95 97 34 36 AES 610 106 20 82 90 95 32 37 Ohio M15 104 20 82 88 96 41 Average 117 21 80 95 97 37 E 1954 results (4 replications) 1 111. 1902 . . 149 27 78 90 100 41 2 M14XWF9 . . . 140 25 78 90 98 36 3 111. 1861 . . . 140 23 80 89 99 36 3.2 4 111. 1281 . . . 139 27 79 95 99 41 1.2 5 111. 1559B . . . 138 27 77 96 99 39 .7 6 111. 1575.. 137 28 77 96 97 43 2.0 7 111. 21 . . . 137 25 77 93 96 46 3.4 8 111. 1555A . . . 137 26 79 96 94 40 3.3 9 111. 1493 . . . 137 28 78 97 92 41 10 AES 702 . . . 136 26 77 95 99 39 3.8 11 111. 1557 . . 136 28 77 94 98 38 .6 12 111. 1289 . . . 135 26 77 92 98 39 4.9 13 111. 2247W . . . 134 25 78 93 94 42 3.1 14 111. 1279 . . . 133 25 78 92 97 38 3.3 15 Iowa 4630 . . . 133 24 79 88 96 36 2.6 16 111. 1277 . . 133 26 79 91 94 42 5.3 17 111. 101 . . 131 26 79 95 97 39 4.2 IS 111. 1866 . . . 129 27 78 90 94 38 .7 19 111. 1864 . . . 128 24 78 95 96 32 5.8 20 111. 1091A . . . 128 27 77 90 97 42 2.9 21 I.S.P. 2... 127 28 76 97 100 35 1.4 22 111. 1560A . . . 127 24 77 98 96 38 1.2 23 111. 1290 . . . 127 27 78 88 94 39 2.8 24 111. 1595 . . . 127 28 79 95 97 43 .7 25 111. 1903 . . . 126 24 77 97 96 40 2.7 26 111. 1585. . 126 26 78 88 95 38 3.8 27 111. 1375 . . . 126 25 79 91 96 38 2.6 28 Ind. 0421 . . . 126 25 80 93 98 38 3.5 29 111. 1280 . . . 125 26 79 87 94 37 3.3 30 111. 1863 . . . 125 28 79 94 97 33 1.5 31 AES 510. .. 124 23 80 93 93 39 2.1 32 111.6015 . . . 123 32 75 83 95 62 .6 33 111. 1865 . . . 122 27 78 93 98 34 3.1 34 111. 1579 . . . 122 25 78 90 96 35 1.9 35 111. 6074 . . . 121 29 78 88 94 42 2.0 36 111. 1799. . 121 22 79 93 99 39 3.1 37 111. 6052 . . . 120 32 76 87 94 51 .6 38 111. 1558 . . . 120 26 76 95 93 36 2.2 39 111. 1802 . . . 120 24 78 97 96 38 2.6 40 111. 1862 . .. 119 25 79 92 88 30 1.9 41 Ohio K24 119 23 80 94 93 37 3.9 42 Minn. 40 . .. 119 23 78 92 94 38 43 Iowa 4558 . .. 117 22 80 89 92 35 4.3 44 Minn. 4 . .. 117 23 80 92 92 40 3.3 45 111. 1800 . .. 117 26 78 90 96 35 2.6 46 AES 610. . . 116 23 80 84 95 34 1.4 47 Ohio M15 . .. 112 24 82 84 95 43 3.9 48 111.6062 . . . 103 33 75 86 96 55 1.7 49 Ohio 5305 . .. 97 22 78 96 91 38 .8 Average . . . 127 26 78 92 96 39 2.4 Significant difference .... 10 7 8 4 1955} EXPERIMENTAL CORN HYBRIDS: 1954 TESTS 13 Table 3. SINGLE AND DOUBLE CROSSES OF ILLINOIS 1277 MATURITY Tested in Northern Illinois, 1954 (Entries in boldface were average or better in yield and standability and average or earlier in maturity) Cod le Entry Acre yield Mois- ture in grain Shelling Erect plants Stand Ear height Dropped ears A- Single crosses bu. perct. perct. perct. perct. in. perct. 1 M14XB14... ... 149 25 81 97 94 38 2 M14XB21 ... 131 25 80 88 97 37 2.0 3 M14XA223 ... 114 23 79 85 97 34 1.2 4 B14XB21 ... 121 30 79 83 97 45 1.3 5 B14XA223 ... 138 22 80 99 94 36 .7 6 B21XA223... 126 23 79 97 90 37 1.2 7 A239XM14 ... 134 24 81 98 97 39 8 A239XB14 ... 129 24 83 100 99 40 9 A239XB21 ... 108 22 82 97 89 37 .8 11 A295XM14 ... 119 25 77 93 98 36 .6 12 A295XB14... 142 24 79 97 93 42 13 A295XB21 ... 124 23 78 92 86 40 .6 14 A295XA223 ... 107 21 77 94 98 38 8.1 15 A295XA239 ... 124 21 79 88 98 41 16 A297XM14 . . . 122 22 80 96 97 40 17 A297XB14.. . 139 24 81 100 95 42 18 A297XB21 ... 143 22 81 92 100 43 5.1 19 A297XA223 ... 112 22 81 96 98 38 .6 20 A297XA239 ... 115 22 82 98 98 39 .7 21 A297XA295 ... 115 22 79 93 96 41 3.8 22 A54SXM14. . 136 24 81 95 96 38 23 A545XB14 ... 135 27 82 99 96 45 24 A545XB21 . . . 134 25 82 95 88 40 25 A545XA223 ... 118 23 78 94 100 35 .6 26 A545XA239 . . . 139 24 81 93 96 42 .6 27 A545XA295... 125 23 74 92 99 40 .6 28 A545XA297 ... 131 24 80 96 100 43 29 Oh26AXM14 . . . 126 24 79 85 96 41 30 Oh26AXB14 . . . 138 25 78 99 95 42 31 Oh26AXB21 . . . 121 23 80 96 86 40 1.3 32 Oh26AXA223. . 118 20 81 99 83 37 33 OH26AXA239 ... 122 22 80 94 87 38 34 Oh26AXA295 . . . 115 22 75 99 96 39 35 Oh26AXA297 . . . 123 22 80 96 98 38 1.9 36 Oh26AXA545 ... 138 26 79 98 99 44 2.1 37 W64AXM14. . 135 23 78 96 98 33 .6 38 W64AXB14 ... 144 26 79 99 97 37 .7 39 W64AXB21 ... 115 22 78 90 83 35 1.5 40 W64AXA223 ... 126 23 78 98 96 35 3.2 41 W64AXA239 ... 120 22 78 97 98 36 .7 42 W64AXA295... 123 25 76 95 96 37 1.9 43 W64AXA297 ... 135 23 78 98 97 40 1.2 44 W64AXA545 ... 136 27 78 97 93 37 1.3 45 W64AXOH26A ... 110 24 77 97 89 36 Average 127 24 79 95 95 39 1.0 Significant difference. . . . 12 6 12 3 B Double crosses 111. 1863. . 143 27 79 96 99 35 2.0 AES702 ... 139 27 76 94 98 44 3.2 111. 1289 . . . 134 28 78 99 98 38 1.3 Ohio K24 ... 123 24 80 93 95 36 3.5 111. 1800 ... 118 25 77 92 91 37 .6 Average ... 131 26 78 95 96 38 2.1 Significant difference. . . . 12 6 12 3 14 BULLETIN No. 584 [January, Table 4. DOUBLE CROSSES OF ILLINOIS 21 MATURITY Tested in North-Central Illinois, 1950-1954 (Entries in boldface were average or better in yield and standability and average or earlier in maturity) Rank in Entry yield Acre Mois- yield ture - in gram Shelling Erect plants Stand Ear height A Five-year averages , 1950-1954 bu. perct. perct. perct. perct. in. 1 111. 1555A 91 17 84 94 97 38 2 111. 1560A 90 18 81 97 98 37 3 111. 1290 90 19 82 93 96 39 4 111. 1277 90 20 82 93 98 39 5 111. 1575 90 21 80 96 99 40 6 111. 1280 89 19 82 91 97 37 Average 90 19 82 94 98 38 B Four-year averages , 1951-1954 1 111. 1511. . . 104 20 83 92 89 48 2 111. 972A-1 104 20 82 91 95 45 3 111. 1617 103 20 79 91 96 44 4 111. 1332 101 19 82 91 97 46 o 111. 1570 101 21 79 88 99 48 6 111. 274-1 . . . . 100 19 81 94 97 46 7 111. 1575 99 20 80 95 99 41 X 111. 1555A 97 17 84 93 98 40 9 111. 1277 96 20 83 93 97 40 10 AES805 96 21 78 96 93 43 11 111. 1760. . . 96 22 78 94 95 44 12 111. 1280 95 18 83 90 97 38 13 111. 1290 94 18 82 92 94 39 14 111. 1560A 94 18 81 96 98 38 15 AES702 92 20 78 91 97 42 16 Iowa 4297 87 19 82 94 91 40 Average 97 20 81 93 96 43 C Three-year averages, 1952-1954 i 111. 1819. . . 106 18 81 89 98 45 2 AES806 105 22 80 89 97 44 3 111. 1511 104 19 83 91 86 50 4 111. 972A-1 104 21 81 90 95 49 5 111. 1332 102 19 82 90 96 48 6 111. 1570. . . 102 20 79 86 98 50 7 111. 274-1 101 19 82 93 97 47 8 111. 1617 101 19 79 89 92 45 9 111. 1814 100 21 81 94 96 40 10 111. 1575 99 19 80 94 98 42 11 111. 1831. . . 99 20 81 94 96 41 12 111. 1555A. . 98 16 85 93 97 42 13 111. 1277 97 19 83 92 97 42 14 111. 1560A. . . 95 17 82 96 97 40 15 111. 1826 95 20 81 92 98 39 16 111. 1760. . . 95 21 78 92 94 44 17 111. 1813 94 23 79 95 94 45 18 111. 1280 93 18 82 87 96 39 19 AES805 93 21 78 95 91 44 20 111. 1290 92 18 83 89 94 41 21 Ind. 1405. . 91 19 80 95 92 38 22 AES 702 89 20 78 89 97 43 23 Iowa 4297 85 18 82 92 90 41 Average 97 19 81 92 95 43 (Table is continued on next page) 1955] EXPERIMENTAL CORN HYBRIDS: 1954 TESTS Table 4. Continued 15 Rank in Entry yield Acre yield Mois- ture in grain Shelling Erect plants Stand Ear height Dropped ears D Two-year averages, 1953-1954 bu. perct. perct. perct. perct. in. perct. i AES 806... . 100 21 80 86 96 42 2 111. 1819 98 18 82 84 96 41 8 111. 1570 95 19 80 81 97 46 4 111. 1332 94 18 83 89 94 45 5 111. 1875 94 19 80 92 92 47 6 111. 972A-1 . . 94 20 81 86 92 46 7 111. 274-1 93 18 82 91 96 43 8 111. 1511 92 18 84 89 78 46 9 111. 1617 92 18 80 88 96 44 10 111. 1831 92 20 82 94 94 38 11 111. 1896A.. . . 91 18 80 88 98 40 12 111. 1555A 90 16 84 90 96 40 13 111. 1575 90 18 81 91 98 39 14 111. 1814 90 19 82 92 97 38 15 III. 1868 90 19 81 94 94 40 16 111. 1277. . . 89 18 84 88 96 38 17 111. 2247W 88 18 81 80 95 42 18 111. 1560A 87 16 82 94 96 36 19 111. 1813 87 22 79 92 96 42 20 111. 1826 86 19 82 90 98 36 21 111. 1760. . . 86 20 78 89 91 42 22 111. 1280 84 16 82 82 95 35 23 111. 1290 84 17 82 88 91 38 24 Ind. 1405 84 18 82 93 93 35 25 111. 1864 83 16 82 93 94 36 26 111. 1863. . . 82 18 82 94 95 36 27 111. 1873 82 18 80 94 94 36 28 AES 702 82 18 80 86 96 40 29 AES 805 82 20 78 93 87 42 30 Iowa 4297 74 18 82 92 86 38 Average 88 18 81 89 94 40 E 1954 results (4 replications) i AES 806.. . . 107 23 80 88 100 40 1 ,5 2 111. 972A-1 107 22 80 85 99 46 3 3 3 111. 1912 107 21 81 79 97 42 3 6 4 111. 1819 107 22 80 79 99 43 7 2 5 111. 1511 106 21 82 85 98 47 15 .5 6 111. 1332 .. . 105 20 82 86 100 43 3 .9 7 111. 1570 105 22 80 77 98 45 1 ,3 8 111. 1919 104 20 80 86 99 44 3 ,7 9 111. 1617 104 20 79 84 100 43 .6 10 111. 1905 104 21 77 83 99 46 3 .8 11 111.274-1... . 103 20 82 86 99 44 .7 12 111. 1918 103 22 81 81 98 44 3 .8 13 111. 1875 103 21 80 92 100 47 9 .2 14 111. 1906 102 21 79 77 100 45 4 .4 15 111. 1913 101 20 83 74 98 44 3 ,3 Ifi 111. 1908. . . 100 20 82 75 99 44 2 .7 17 111. 1915 99 22 80 85 99 42 5 ,6 18 111. 1910 98 20 83 73 99 44 2 ,8 19 111. 1904 98 21 79 60 98 46 2 .7 20 111. 1914 98 21 79 85 99 45 4 (Table is concluded on next page) 16 BULLETIN No. 584 Table 4. Concluded [January, Rank in Entry yield Acre yield Mois- ture in grain Shelling Erect plants Stand Ear height Dropped ears E- - 1954 results (4 replications) 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 111 6021 bu. . 98 perct. 23 20 19 19 20 22 22 20 20 22 20 20 20 24 20 23 19 20 19 21 24 21 20 19 21 22 22 22 21 21 perct. 78 82 82 82 80 80 79 83 80 80 80 83 81 81 81 77 79 80 80 80 77 80 80 81 79 80 75 77 80 80 perct. 63 68 89 77 84 85 92 85 77 93 80 79 79 91 88 87 91 76 78 89 90 89 91 88 88 91 92 93 86 83 12 perct. 100 99 98 96 97 100 99 97 99 99 98 100 98 99 97 99 100 95 99 99 99 99 97 100 98 99 96 100 97 99 3 in. 51 46 42 43 39 39 42 41 42 42 46 35 40 38 37 41 39 43 34 36 42 37 39 35 40 37 41 36 38 42 4 perct. 5.0 3.9 3.8 .7 4.6 3.2 3.8 .7 3.4 4.7 7.1 3.8 1.9 4.3 4.6 5.1 1.2 5.2 6.0 2.0 2.0 4.2 2.7 2.6 2.0 3.8 3.6 4.9 7.1 3.9 111. 1916 ... 97 111. 1SS5A ... 97 111. 1917 . ... 97 111. 1896 A 96 111 1814 96 111. 1575. ... 95 Ill 1277 94 111 2247W . 93 111. 1868 ... 93 111. 1911. . . 93 Ohio 3247 . 92 111. 1290 ... 92 Ill 1831 92 Ind. 1405 . 92 111. 1760 . 91 111 1560 A 89 111. 1909 88 111. 1280 . 88 111. 1826 . . . 88 111. 1813 . . . 87 Ind. 2401 86 111. 1903 . . 86 Ill 1864 85 AES 702 84 111. 1863 81 AES 805 ... 79 111. 1873 77 Iowa 4297 . 73 Average . 95 Significant difference 8 1955] EXPERIMENTAL CORN HYBRIDS: 1954 TESTS 17 Table 5. THREE-WAY AND DOUBLE CROSSES OF ILLINOIS 21 MATURITY Tested in North-Central Illinois, 1954 (Entries in boldface were average or better in yield and standability and average or earlier in maturity) Code Entry Acre yield Mois- ture in Shellii grain Erect ? plants Stand Ear height Dropped ears A Inbred lines crossed with (B14 X WF9) i 2 3 4 5 6 7 8 9 10 11 12 13 14 15 B38 bu. 96 perct. 19 22 19 21 21 19 19 19 19 20 20 18 18 19 20 20 perct 76 73 81 81 77 79 82 75 82 82 83 81 82 78 81 80 perct. 98 97 97 92 96 96 80 97 97 93 94 90 97 97 82 94 perct. 97 99 98 94 92 99 99 100 99 99 99 96 99 99 97 98 in. 41 42 39 37 40 38 40 40 41 38 39 41 35 41 38 39 perct. 3.5 9.3 2.8 3.4 4.6 .7 4.5 6.2 3.8 2.4 3.9 1.2 3.2 3.2 3.5 C103 76 Oh26A 78 M14 .. 99 Oh422 97 Oh28. . . 106 Nebr. 9206 102 Oh5 . . 82 W70 86 Oh43 . 113 Nebr. 4535 118 K1603 110 A73 ... 73 B37 . 102 N18 100 96 B Inbred lines crossed with (Oh28 X Oh43) 16 17 18 19 20 21 22 23 24 25 26 27 28 29 B38. . . 119 19 23 19 20 18 20 19 21 21 18 19 23 22 19 20 79 71 82 81 82 83 82 82 85 83 80 82 79 82 81 93 95 91 92 83 58 77 81 75 75 91 98 68 95 84 92 99 98 96 99 96 97 99 99 99 99 100 98 97 98 42 39 39 34 34 38 40 40 38 39 36 39 36 36 38 2.6 2.1 2.7 1.2 .6 1.4 4.7 1.3 3.4 2.9 4.6 .6 2.6 .7 2.2 C103 72 Oh26A 95 WF9 . 106 M14 98 Nebr. 9206 99 Oh5... 96 W70 108 Nebr. 4535 . . 112 K1603 109 A73 80 B37. . 129 N18 91 Nebr. 4056 97 101 c Double crosses (Oh28xOh43)(B14XWF9). . AES 702 108 90 21 20 21 21 80 77 80 79 94 96 92 94 9 99 98 98 98 4 39 40 40 40 3 3.8 5.9 1.9 3.9 Iowa 4297 87 95 Significant difference. . . . 11 18 BULLETIN No. 584 [January, Table 6. DOUBLE CROSSES OF U. S. 13 MATURITY Tested in Central Illinois, 1950-1954 (Entries in boldface were average or better in yield and standability and average or earlier in maturity) (Rank in Entry yield Af-rp Mois- yied turein ylej gram Shelling Erect plants Stand Ear height A Five-year averages, 1950-1954 1 2 3 4 5 6 7 111. 1511. . bu. p . 98 erct. 18 17 17 18 18 17 16 17 perct. 82 81 80 80 80 82 82 81 perct. 86 89 83 78 78 83 87 83 perct. 96 98 97 98 97 97 98 97 in. 48 46 47 52 47 47 45 47 111. 1332 . 94 111. 972A-1 ... . 94 U.S. 13 ... 93 Ill 1570 . 93 111. 21 . 91 111. 274-1 90 93 B Four-year averages, 1951-1954 1 2 3 4 5 6 7 8 9 10 11 12 13 111. 1511 95 17 17 16 16 17 17 18 18 17 18 16 17 18 17 82 82 82 80 80 80 80 79 79 80 82 80 81 80 85 85 88 82 83 77 81 80 82 77 84 90 77 82 99 99 98 99 98 98 98 100 99 99 100 97 100 99 47 44 46 47 46 51 46 47 47 47 45 43 45 46 HI. 1421 . . 94 111. 1332 92 111. 972A-1 . 91 111. 1777 . . 91 U.S. 13. . . 90 111. 1759 90 111. 1788 90 111. 1764 . . . . . 88 Ill 1570 88 111 274-1 86 AES 805 . . . 86 111. 1767 . . 84 Average . 90 C Three-year averages , 1952-1954 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 111. 1511. . 94 17 17 15 17 16 17 16 16 17 18 16 17 15 16 17 16 17 16 17 16 83 82 82 80 79 80 79 81 78 77 80 78 82 82 80 79 80 79 80 80 87 85 91 89 94 84 83 83 80 80 90 83 90 89 92 87 86 90 92 87 99 99 98 99 96 99 98 98 99 99 88 98 99 98 98 98 99 97 95 98 47 43 45 45 39 47 47 50 48 49 43 45 44 46 40 46 45 40 42 45 111. 1421. . . 94 111. 1332 91 111. 1777. . 91 AES 801 . 90 111. 1570. . 90 111. 972A-1 89 U.S. 13 88 111. 1788 . 88 Mo. 4041W 88 AES 802 ... . 87 111. 1759. . 87 111. 274-1 86 111. 21 86 Ohio 4808 86 111. 1764. . 83 111. 1767 . 82 AES 803 . . . . . 81 AES 805 79 Average 87 (Table is continued on next page) 1966} EXPERIMENTAL CORN HYBRIDS: 1954 TESTS 19 Table 6. Continued Rank in Entry yield Acre yield Mois- ture in grain Shelling Erect plants Stand Ear height D Two-year averages, 1953-1954 i 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 111. 1896. . bu. . 92 perct. 16 17 17 15 17 17 16 16 17 16 16 17 16 16 17 16 16 16 16 16 16 15 16 17 16 16 16 18 16 perct. 82 83 82 82 81 81 82 79 79 80 78 80 82 80 81 79 78 82 82 78 80 82 82 80 76 78 77 76 80 perct. 82 84 78 88 85 77 80 76 76 88 91 72 86 89 90 90 76 85 80 84 88 85 67 90 90 96 88 96 84 perct. 98 98 98 98 100 98 98 98 98 88 95 98 98 98 96 100 98 100 99 97 96 95 96 94 96 98 96 98 97 in. 42 47 42 46 45 47 48 46 48 42 39 46 46 38 40 42 44 44 45 46 38 42 39 40 43 38 44 44 43 111. 1511. . 90 111. 1421 88 111. 1332 87 111. 1777. 87 111. 1570. . 86 U.S. 13 83 111. 972A-1 82 Mo. 4041W 82 AES 802 80 AES 801 80 111. 1788 80 111. 21 78 Ohio 4808 78 111. 1813 78 111. 1890 . 76 111. 1759 76 Ill 274-1 75 111. 1767 . . 75 111. 1764 72 AES 803 ... 71 111. 1880 70 111. 6075. . . 68 AES 805 68 111. 1884 67 111. 1877 66 111. 1876 63 111. 1889 62 Average 77 (Table is concluded on next page) 20 BULLETIN No. 584 [January, Table 6. Concluded Rank in Entry yield Acre yield Mois- ture in grain Shelling Erect plants Stand Ear height Dropped ears Smutted plants E 1954 results (4 replications) feu. perct. perct. perct. perct. in. perct. perct. 1 111. 1511. . 99 18 84 86 98 42 5.4 9.4 2 Tenn. 3473 98 21 83 79 98 40 7.0 3 HI. 1896 97 17 83 90 97 38 11.8 3.8 4 111. 1913 96 18 84 93 95 38 4.0 4.0 5 111. 1919 94 16 83 90 97 38 1.3 7.7 6 111. 1911. . 94 17 82 89 99 40 6.9 2.5 7 111. 1777 92 18 81 91 100 40 3.8 5.7 8 U.S. 13 91 16 82 86 97 42 5.3 5.2 9 AES806 91 19 83 86 99 35 7.6 6.3 10 111. 1570 91 19 81 85 99 40 10.5 9.4 11 111. 1332 . . 90 17 83 90 97 40 1.9 5.8 12 111. 1918 88 17 79 87 100 39 4.7 2.5 13 Mo. 4041 W 87 19 80 92 100 40 5.6 5.7 14 Irid. 2609 87 16 81 83 99 37 4.3 6.3 15 111. 1908 86 17 84 96 93 39 3.7 .7 16 111. 1915 . 86 17 79 89 97 39 2.1 17 111. 1906 85 17 80 78 96 37 8.8 5.8 IS 111. 1914 85 18 80 88 99 40 2.6 2.5 19 111. 1421 85 18 81 87 99 38 2.0 7.6 20 Ind. 9502 85 19 80 96 99 34 .7 3.8 21 111. 1909. . 84 17 82 90 97 41 3.3 7.1 22 111. 972A-1 84 17 76 80 98 40 1.3 23 111. 1788 83 18 79 87 98 38 4.2 5.1 24 111. 1916 83 17 82 88 96 39 3.5 13.1 25 AES 801 83 17 76 94 97 34 1.9 4.5 26 111. 6021 . . 82 18 80 75 94 45 4.4 4.0 27 111. 21 81 18 82 96 99 41 9.9 13.3 28 111. 1904 79 16 78 88 94 39 4.2 8.7 29 111. 1917 79 17 81 76 97 37 2.6 7.0 30 111. 1910 77 17 84 90 99 37 4.7 13.3 31 111. 1912. . 76 17 80 94 97 37 3.6 9.6 32 AES 802 76 17 77 97 80 38 5.3 16.4 33 111. 274-1 76 17 81 95 100 37 .7 5.0 34 111. 1905 75 17 76 91 99 38 3.7 6.3 35 111. 1759 74 18 78 83 97 38 2.9 3.8 36 111. 1813. . 73 18 80 91 100 36 4.2 10.6 37 111. 1890. . . 71 18 78 94 100 38 .6 21.7 38 111. 1767 71 18 81 87 99 40 4.5 18.9 39 111. 6075 71 18 82 70 100 35 7.4 5.7 40 Ohio 4808 69 18 79 91 98 35 10.1 41 Iowa 4615 69 17 79 96 97 40 .7 10.8 42 AES 803 68 17 78 93 99 36 5.0 20.8 43 111. 1764 66 16 76 90 95 40 1.5 14.4 44 111. 1880 63 16 81 86 98 37 5.1 5.7 45 AES 805 58 18 79 97 90 35 .6 17.7 46 111. 1884. . 54 18 71 93 97 38 7.4 19.2 47 111. 1876 51 19 73 92 94 37 4.8 28.9 48 111. 1877.. . 50 19 74 99 98 35 9.7 25.3 49 111. 1889 46 20 73 99 97 36 2.7 24.0 Average 79 18 80 89 97 38 4.1 9.3 Significant difference 16 8 6 3 1955} EXPERIMENTAL CORN HYBRIDS: 1954 TESTS 21 Table 7. SINGLE AND DOUBLE CROSSES OF U. S. 13 MATURITY Tested in Central Illinois, 1954 (Entries in boldface were average or better in yield and standability and average or earlier in maturity) Code Entry Mois- A- tu n Shelling JgJ Stand Jg, Draped Smutted A- Single crosses bu. perct. perct. perct. perct. in. perct. perct. 1 R71XR98. . 87 18 84 97 100 38 1.4 2 R71XR105 81 21 80 97 100 37 3 R71XR113 61 17 78 97 100 34 4 R98XR105 98 19 81 97 100 44 10.0 5 R98XR113 73 17 81 95 94 41 6.2 6 R105XR113. . 75 18 77 96 88 40 7 R71XR130 95 16 84 91 100 45 4.7 1.7 8 R98XR130 111 17 83 83 99 50 4.2 9 R105XR130 83 21 79 90 97 46 1.8 .8 10 R113XR130 85 16 79 81 100 44 2.6 11 R71XR151. . 80 18 82 94 100 39 1.8 12 R98XR151 86 17 84 92 98 43 11.9 13 R105XR151 92 22 80 94 100 43 5.6 2.5 14 R113XR151 77 16 82 92 99 43 5.0 15 R130XR151 92 17 85 86 99 46 .8 16 R71XR153. . 91 17 83 99 100 37 .5 17 R98XR153 94 20 82 90 99 43 2.5 18 R105XR153 99 20 80 100 99 39 .8 19 R113XR153 81 17 80 96 100 37 20 R130XR153 101 18 82 80 100 45 .8 1.7 21 R151XR153. . 97 18 81 79 99 43 1.5 .8 22 R71XR154 81 17 84 94 100 37 1.6 23 R98XR154 95 16 86 72 96 46 1.7 24 R105XR154 101 18 85 93 99 42 .9 25 R113XR154 84 15 84 76 98 38 26 R130XR154... 111 15 86 77 100 49 1.7 27 R151XR154 99 16 87 91 99 43 2.8 1.7 28 R153XR154 96 17 88 78 98 42 .8 29 R71XR155 85 17 83 95 100 40 30 R98XR155 90 16 83 73 100 45 .8 31 R105XR155. . 92 20 82 93 99 42 32 R113XR155 72 16 81 97 98 40 .8 33 R130XR155 105 16 84 88 100 46 2.5 34 R151XR155 88 18 83 91 100 45 2.5 35 R153XR155 87 19 81 79 100 44 36 R154XR155. . 80 16 85 75 99 43 .9 37 R71XR156 90 19 85 98 99 37 .8 .8 38 R98XR156 81 17 78 90 100 43 14.2 39 R105XR156 75 22 78 100 100 38 3.3 40 R113XR156 73 17 77 93 97 35 5.1 41 R130XR156. . 91 18 81 98 99 45 1.0 .8 42 R151XR156 90 18 85 89 100 39 6.7 43 R153XR156 75 20 79 97 99 36 .8 3.4 44 R154XR156 92 17 83 83 100 42 1.7 .8 45 R155XR156 80 17 84 76 100 40 1.7 2.5 Average 88 18 82 89 99 42 1.0 1.9 fi- Double crosses 111. 6021 . . 90 le 81 87 99 48 8.9 8.4 U.S. 13 87 17 82 91 99 42 4.0 12.6 111.6016 84 16 84 74 99 44 3.6 17.6 AES805 74 16 77 94 100 38 5.6 20.0 Average 84 16 81 86 99 43 5.5 14.6 Significant difference 9 10 2 3 22 BULLETIN No. 584 [January, Table 8. THREE-WAY AND DOUBLE CROSSES OF U. S. 13 MATURITY Tested in Central Illinois, 1954 (Entries in boldface were average or better in yield and standability and average or earlier in maturity) Code Entry A^ Mois- ture in grain Celling g G+ i Ear Dropped otanu i - \ * Smutted plants Inbred lines crossed with (WF9 X Hy) i 2 3 4 5 6 7 8 9 10 11 12 R95 bu. . 108 perct. 17 15 17 17 18 18 18 18 18 19 18 18 18 perct 82 80 82 80 77 80 83 79 76 82 82 82 80 perct. 71 84 82 99 76 95 89 80 92 83 90 76 85 perct. 96 98 98 99 98 94 99 98 99 99 97 99 98 in. 40 43 39 39 40 38 41 38 41 41 41 45 40 perct. 2.0 9.5 2.1 2.0 3.5 .7 4.5 16.9 2.6 11.5 5.5 5.1 perct. 2.6 8.9 24.8 5.1 7.0 12.0 19.6 17.2 27.0 5.7 14.2 2.5 12.2 R96 99 R98 . . 77 R101 82 N5 85 N12 . 76 N13 99 K1605 89 B36 . . 74 Oh451 110 38-11 98 L317 98 91 Inbred lines crossed with (WF9 X 38-11) 13 14 15 16 17 18 19 20 21 22 R95. . . 96 17 17 18 17 18 17 18 18 17 18 18 82 82 81 82 78 81 80 82 82 83 81 91 86 92 98 76 95 94 88 89 87 90 94 95 94 96 98 98 98 96 94 79 94 40 41 41 36 39 40 40 38 46 40 40 6.4 9.9 2.6 1.3 .7 .7 4.9 .7 10.9 7.9 4.6 10.7 11.8 39.3 12.4 9.0 28.2 49.7 29.4 15.2 10.2 21.6 R96 92 R98 79 R101. . 77 N5. . . . 88 N12 . 78 N13 73 K1605 91 L317 101 Hy .79 Average . . . . 85 Double crosses AES 805 98 17 18 18 81 76 78 90 95 92 10 98 97 98 6 46 38 42 4 7.0 3.7 5.4 4.5 31.6 18.0 U.S. 13 .... 60 Averatre. . 79 Significant difference 19 1955] EXPERIMENTAL CORN HYBRIDS: 1954 TESTS 23 Table 9. UNIFORM TEST OF BLIGHT-RESISTANT THREE- WAY CROSSES AND STANDARDS OF U. S. 13 MATURITY Tested in Central Illinois, 1954 (Entries in boldface were average or better in yield and standability and average or earlier in maturity) Code Entry ture in Shelling j . Stand Ear height Dropped ears Smutted plants A Inbred lines crossed on ( WF9 X 38-11) i 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 Hy . bu. perct. 87 16 103 17 104 16 92 16 102 17 111 16 97 17 103 16 102 18 110 18 96 18 98 19 101 18 105 18 98 17 103 17 96 17 94 18 80 16 88 16 97 17 82 17 98 17 perct. perct. 83 92 85 88 85 71 82 83 84 98 84 87 85 91 83 83 78 90 80 94 82 92 80 96 80 82 80 89 82 84 81 86 82 76 82 89 81 88 82 92 82 94 83 98 82 88 perct. 95 96 90 94 96 97 86 96 88 98 92 96 97 94 92 99 93 87 95 100 98 96 94 in. 42 45 47 42 45 46 44 48 49 50 48 47 49 47 48 45 45 45 35 46 43 39 45 perct. 11.7 9.8 8.6 5.8 7.5 6.7 6.9 15.7 7.3 .8 3.6 6.4 5.5 10.5 5.0 15.8 7.5 9.5 8.0 10.8 22.3 17.9 9.3 perct. 13.0 7.3 4.3 22.5 4.1 5.6 10.0 8.1 14.3 12.6 6.7 6.4 11.9 5.0 6.8 8.6 1.7 4.5 12.2 36.2 11.8 12.8 10.3 CI.42A CI.42B CI.42C Hy(Mo.21A)BX 1-S6AJU 13700.. . Hy(Mo.21A)BX 2-S4AJU 13706.. . . Hy(Mo.21A)BX 2-S4AJU 13711 L317 . ... CI.317A CI 317B (L317XL97)-B-#3-S4 (L317XL97)-B-#3-S6 (L317XL97)-B-#3-S9 (L317XL97)-B-#3-S10 L317(Mo.21A)BX 1-86 AJU 13676 L317(Mo.21A)BX 1-86 AJU 13683 L317(Mo.21A)BX 2-S4 AJU 13688-8. . L317(Mo.21A)BX 2-S4 AJU 13688-13 Os 420 (Os420XNC34)-B- #4-82-1 (Os420XNC34)-B- #4-89- (x) (Os420XNC34)-B- #4-S12-(x) B Inbred lines crossed on (HyX L317) 23 24 25 26 27 28 29 30 31 32 WF9. . 110 103 113 109 101 105 97 103 111 99 17 17 16 16 18 18 17 18 18 19 85 84 82 82 80 81 82 82 81 79 84 71 84 86 75 79 88 83 87 78 99 97 100 98 99 92 98 99 99 97 46 45 50 49 46 48 48 49 53 52 8.3 8.9 5.8 14.2 3.0 1.7 9.5 21.0 11.7 8.3 4 7 3 3 9 8 9 14 .6 .9 .1 .1 .4 .5 .4 .4 CI.29A CI.29B CI.29C... (WF9XNC34)-B- #3-88-3-1 (WF9XNC34)-B- #3-810-1-1 38-11 CI.38A CI.38B . (38-llXNC34)-B- #3-S2-l-2-(x) (Table is concluded on next page) 24 BULLETIN No. 584 [January, Table 9. Concluded r> j TT+ Acre iVT," 1 ?" cu-ii:.,,. Erect Q4.__j Ear Dropped Smutted Entry yield ^Jf SheUm plants Stand height ears plants B Inbred lines crossed on (Hy X L317) (concluded) 33 (38-llXNC34)-B- #3-84-2-1 102 18 83 83 98 50 6.7 3.1 34 (38-llXNC34)-B- #3-87-1-1 101 18 79 75 99 50 10.8 4.6 35 38-ll(Mo.21A)BX 1-86 AJU 13734 103 17 83 89 99 48 8.3 10.1 36 38-ll(Mo.21A)BX l-S2-#3-Sl AJU 13755 118 17 84 91 96 49 7.0 3.2 Average 105 17 82 82 98 49 8.9 5.8 C Standards HyXL317.. . 119 18 83 72 94 51 3.3 .8 WF9X38-11 99 17 84 97 98 38 25.0 43.8 U.S. 13 90 17 82 92 95 44 10.0 10.6 AES 805 79 17 81 99 99 38 4.3 24.0 Average 97 17 82 90 96 43 10.6 19.8 Significant difference 12 .. .. 11 9 4 1955] EXPERIMENTAL CORN HYBRIDS: 1954 TESTS 25 Table 10. DOUBLE CROSSES OF ILLINOIS 448 MATURITY Tested in South-Central Illinois, 1950-1954 (Entries in boldface were average or better in yield and standability and average or earlier in maturity) Rank in Entry yield Acre Mois- yied ture - in gram Shelling Erect plants Stand Ear height A Five-year averages, 1950-1954 bu. perct. perct. perct. perct. in. 1 111. 1657 80 21 80 74 99 46 2 111. 1539A 77 19 79 85 99 45 8 U.S. 13 76 17 81 73 99 44 4 111. 1349 76 18 81 83 98 46 5 111. 1332 75 17 82 85 98 40 6 111. 2214W. . . 75 20 79 78 98 45 7 111. 2235W 75 21 79 89 99 45 8 111. 1570 74 17 80 80 99 39 9 111.200 71 18 80 73 99 45 10 Mo. 804 70 19 77 78 93 49 Average 75 19 80 80 98 44 B Four-year averages, 1951-1954 i 111. 1657 72 20 80 74 99 45 2 Mo. 862 72 22 76 80 100 45 8 HI. 1332 70 16 83 86 99 38 4 111. 1570 70 16 80 80 100 38 5 U.S. 13 69 16 82 75 99 41 6 HI. 1656.. . 69 17 82 83 99 38 7 HI. 1349 69 18 81 88 99 44 8 HI. 1539A 69 18 79 85 100 44 ft 111. 1771 68 19 78 91 98 44 10 111. 2235W 68 21 78 88 99 44 11 111. 1788. . . 67 16 79 78 99 40 12 111. 2214W 67 18 78 79 99 43 18 111.200 63 18 79 73 99 42 14 Mo. 804 62 18 76 79 98 48 Average 68 18 79 81 99 42 C Three-year averages , 1952-1954 1 U.S. 13.. . 62 14 82 77 99 42 2 111. 1570 62 15 80 78 100 38 a 111. 1656 62 16 82 83 100 39 4 111. 1859 62 16 80 79 100 42 5 111. 1851 62 17 79 80 100 45 111. 1857.. . 61 19 77 84 99 44 7 111. 1511 60 14 83 74 98 40 8 HI. 1332 60 16 82 82 99 39 9 111. 1856 60 19 79 77 100 42 10 Mo. 862 59 20 75 79 99 45 11 111. 1788. . . 58 16 78 75 99 41 12 111. 1349 58 17 81 88 99 45 13 AES805 57 16 80 88 99 38 14 111. 1657 57 20 79 69 98 43 15 111. 1852 56 17 75 80 100 43 16 111. 1539A... . 56 18 78 86 100 43 17 111. 1849 56 19 75 90 99 41 18 111. 1771 55 19 76 89 97 42 19 111. 2235W 55 21 77 88 99 44 20 111. 200 54 16 77 71 99 44 21 111. 1850. . . 54 19 75 87 99 42 22 Mo. 804 50 17 75 79 99 48 23 111. 2214W 48 17 76 75 99 41 Average 58 17 78 81 99 42 (Table is continued on next page) 26 BULLETIN No. 584 [January, Table 10. Continued Rank in yield Entry Acre yield Mois- ture in grain Shelling Erect plants Stand Ear height Leaf firing 8 Dropped ears D Two-year averages, 1953-1954 bu. perct. perct. perct. perct. in. grade perct. 1 111. 1897. . . 52 14 80 74 100 38 ?, 111. 1570 52 14 79 71 100 38 3 111. 1859 51 14 80 76 100 41 4 111. 1896 50 14 84 75 98 37 5 111. 2246W 50 14 80 82 100 38 6 111. 1332 . . . 50 16 82 80 99 37 7 U.S. 13 .... 49 14 81 70 100 41 8 111. 1656 49 16 80 79 100 39 9 111. 1511 48 14 83 73 97 38 10 111. 6076 48 14 82 60 99 38 11 111. 1851 . . . 48 16 80 75 100 43 12 111. 1788 48 16 78 72 98 40 13 111. 1857 48 18 78 80 98 42 14 AES 805 46 14 80 86 99 36 15 111. 1349 .... 44 16 78 86 100 43 16 111. 1893 . . . 44 16 76 86 98 40 17 111. 1856 44 18 79 76 99 40 18 Mo. 862 .... 44 18 74 76 100 42 19 111. 6075 .... 43 14 80 62 100 36 20 111. 200 42 16 76 70 99 42 21 111. 1852. . . 42 17 74 78 100 42 22 111. 1539A 41 16 78 80 100 40 23 111. 1657 41 19 78 64 98 41 24 111. 6102 .... 40 16 73 60 100 38 25 111. 1849 40 18 74 90 98 40 26 111. 1771 . . . 40 18 74 87 96 40 27 111. 2235W .... 38 20 76 88 99 41 28 111. 1850 36 18 74 86 98 40 29 Mo. 804 35 17 74 76 98 46 30 111. 6079 .... 34 16 78 58 98 38 31 111. 2214W .... 31 16 74 67 100 39 Average 44 16 78 76 99 40 E 1954 results (4 replications) 1 111. 1851 . . . 53 15 80 52 100 32 1 5 2 111. 1857 51 17 80 69 99 32 1 .2 4 .2 3 111. 1788 49 15 79 54 100 29 2 .2 .8 4 111. 1656 49 16 80 60 100 28 1 .0 1 .7 5 111. 1332 49 15 82 63 100 28 1 .0 .8 6 111. 1859. . . 49 15 79 56 100 31 2 .2 7 111. 1570 49 14 79 46 100 27 1 .5 1 .8 8 111. 1657 . . . . 49 18 82 36 99 32 1 .2 9 Mo. 862 48 17 76 63 100 34 1 .0 10 111. 1539A 47 16 79 67 100 29 1 .5 .9 11 111. 1856. . . 47 16 82 59 98 31 1 .8 2 .5 12 Mo. 8010W. . . . 47 18 77 54 100 32 1 .0 .7 13 111. 1852 . . . . 47 16 77 61 100 32 1 .8 14 111. 1909 47 15 81 50 100 29 2 .0 2 .6 15 111. 2246W 47 15 79 65 99 29 3 .0 4 .2 16 111. 1349. . . 47 16 78 81 99 34 1 .0 1 .0 17 111. 1893 . . . . 47 15 75 72 100 31 1 .5 .9 18 Mo. 804. . . . 46 16 77 58 100 35 1 .0 1 .7 19 HI. 1771 46 16 80 76 92 30 1 .5 20 AES 805 46 15 79 73 98 27 2 .0 Grade 1 is most resistant; grade 4 is most susceptible to high temperature. (Table is concluded on next page) 1955] EXPERIMENTAL CORN HYBRIDS: 1954 TESTS Table 10. Concluded 27 Rank in Entry yield Acre yield Mois- ture in grain Shelling Erect plants Stand Ear height Leaf firing' Dropped ears E- 1954 results (concluded) 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 111. 1918. . bu. 46 46 46 45 45 45 45 45 45 44 44 44 44 44 44 43 43 43 43 42 42 42 40 39 39 39 39 33 30 45 6 perct. 15 16 15 16 16 15 15 19 16 14 17 16 14 14 17 14 14 16 14 15 16 14 15 16 15 15 15 16 14 16 perct. 80 80 79 74 81 77 77 76 78 77 80 79 79 80 78 80 81 83 76 78 74 81 79 78 78 75 78 78 73 79 perct. 52 66 47 28 59 47 50 75 44 63 82 74 35 57 57 58 51 50 54 44 66 42 53 50 56 29 29 38 36 55 18 perct. 100 100 100 100 98 100 100 100 100 100 99 100 98 99 100 99 100 99 100 100 100 100 100 99 100 100 100 99 100 99 2 tn. 29 28 30 26 27 27 27 31 31 27 31 31 28 28 31 25 29 26 28 26 27 25 27 28 27 29 26 27 28 29 3 grade. 2.8 2.8 2.0 1.5 3.2 2.2 3.0 2.5 2.0 2.8 2.0 2.0 2.2 2.5 1.8 3.8 2.2 4.0 2.5 2.2 2.2 4.0 4.0 4.0 3.8 2.5 3.5 2.0 3.0 2.3 1.1 perct. 1.6 .8 1.6 2.5 1.9 .8 3.6 .8 5.6 .9 2.5 1.8 .9 2.6 1.6 3.2 2.5 2.5 1.7 4.0 .8 4.5 1.7 .8 1.7 1.6 111. 1914 U.S. 13. Tenn. 3744 111. 1896 IU. 1904. . 111. 1897 111. 2235 W. 111. 200 111. 1919 111. 1849. . 111. 1850 111. 6076 Ill 1916 111. 1911 111. 1912. . 111. 1511 111. 1910 Ill 1905 111. 1906 AES 903W 111. 1913 111. 1908 Ill 1917 111. 1915 111. 6102. . 111. 6075 . 111. 6079 . . 111. 2214W Significant difference Grade 1 is most resistant ; grade 4 is most susceptible to high temperature. Table 11. THREE-WAY AND DOUBLE CROSSES OF ILLINOIS 448 MATURITY Tested in South-Central Illinois, 1954 (Entries in boldface were average or better in yield and standability and average or earlier in maturity) Code Entry Acre yield Mois- ture in grain Shell- ing Erect plants Stand hefgYt Leaf firing" Dropped ears A Three-way crosses i 10 11 14 18 56 20 21 19 28 (K201X38-11)XB1A.. . bu. ... 38 perct. 18 17 19 18 19 16 19 19 19 18 perct. 81 82 77 80 81 80 78 79 84 82 perct. 57 65 42 47 72 65 67 78 80 39 perct. 100 100 100 98 100 100 99 100 99 100 tn. 32 33 37 35 35 35 34 33 36 34 grade 2.0 1.2 1.0 1.0 2.2 1.0 1.0 1.2 2.0 1.0 perct. 1.7 1.8 .8 1.7 .9 2.6 .8 (K201 X 38-11) XB18 43 (K201 X 38-1 1 ) X Kys . . 39 (K201X38-11)XK4 . . . 46 (K201 X38-1 1) X Ky36-l 1 48 (K201X38-ll)XKyl06 47 (K201 X38-11) XKyiis . 46 (K201 X 38-11) XKyl20 (K201 X38-11) X Kyl26 ... 42 ... 53 (K201X38-1DXN5 . . . 36 Grade 1 is most resistant ; grade 4 is most susceptible to high temperature. (Table is concluded on next page) 28 BULLETIN No. 584 Table 11. Concluded [January, Code Entry A[ 5 . grain Shell- ing Erect plants Stand Ear height Leaf firing" Dropped ears A Three-way crosses (concluded) bu. perct. perct. perct. perct. in. grade perct. 29 (K201X38-1DXN9... .. 48 16 80 62 100 33 1.5 80 (K201X38-1DXN10 . . 37 16 82 83 100 28 2.0 31 (K201X38-1DXN15 . 47 22 83 49 99 29 1.2 1.7 55 (K201 X38-ll)XOh7B . 42 17 84 89 100 33 2.0 12 (K201X38-ll)XOh401 . . 37 14 80 65 99 30 2.5 .9 13 (K201X38-ll)XOh443. . . 38 16 80 57 100 36 1.8 5 (K201X38-ll)XOkll . . 48 18 82 76 100 30 1.5 1.7 9 (K201X38-ll)XOkl2 . 36 17 78 40 100 34 2.8 .8 6 (K201X38-ll)XOkl5 . . 46 18 80 34 99 34 2.5 10.8 7 (K201X38-ll)XOkl9 . 40 18 79 80 99 33 2.2 .9 8 (K201X38-ll)XOk22... . 39 17 79 70 99 32 2.2 .9 2 (K201X38-1DXCI.7 . 44 20 83 72 100 36 1.0 1.9 3 (K201X38-1DXCI.7A . 38 18 79 56 99 32 1.5 15 (K201X38-11)XCI.21E . 49 17 80 81 100 33 1.0 4 (K201X38-11)XCI.31 . 46 17 84 39 100 34 1.2 34 (K201X38-ll)XKans. 52:1326. . 49 16 82 64 100 32 2.8 2.5 35 (K201X38-ll)XKans. 52:1349. . 44 17 84 58 100 29 1.8 36 (K201X38-ll)XKans. 52-1351. . 41 17 82 62 100 30 2.0 .9 37 (K201X38-ll)XKans. 52:1357. . 49 17 85 42 100 28 3.5 2.5 38 (K201X38-ll)XKans. 52:1363. . 46 19 81 72 99 26 3.8 1.7 39 (K201X38-ll)XKans. 52:1367 . 43 16 82 68 100 32 2.2 40 (K201X38-ll)XKans. 52:1385. . 37 18 75 72 100 33 1.0 41 (K201X38-ll)XKans. 52:1391. . 41 16 80 60 99 32 2.2 42 (K201X38-ll)XKans. 52:1394 . 43 16 78 66 99 32 2.8 1.7 43 (K201X38-ll)XKans. 52:1409. . 44 20 82 60 100 35 1.0 44 (K201X38-ll)XKans. 52:1411 . 43 18 79 82 100 31 1.5 .8 45 (,K201X38-ll)XKans. 52:1412. . 49 18 82 36 100 36 1.8 46 (K201X38-ll)XKans. 52:1421. . 45 23 80 25 98 36 1.0 .9 47 (K201X38-ll)XKans. 52:1430. . 44 17 82 62 100 32 3.5 .9 48 (K201X38-ll)XKans. 52:1493 . 45 16 80 85 99 31 1.5 2.8 49 (K201X38-ll)XKans. 50:1109 . 45 18 82 96 97 32 2.5 .8 22 (K201X38-ll)XKy52:130 . . 44 15 83 97 100 30 4.0 5.0 23 (K201X38-ll)XKy52:132 . . 36 17 82 62 98 36 1.0 24 (K201X38-ll)XKy52:134 . . 32 18 74 84 99 34 2.2 25 (K201X38-ll)XKy52:136 . . 41 18 80 74 99 31 1.5 .9 26 (K201X38-ll)XKy52:138. . . 40 18 84 54 100 30 3.0 1.7 27 (K201X38-ll)XKy52:140 . 40 19 80 93 98 26 2.0 1.8 17 (K201X38-11)XN47556 . 31 18 76 92 99 35 2.5 2.5 32 (K201X38-ll)XN47587-9. . . . . 30 16 77 70 98 34 3.5 2.9 16 (K201X38-11)XN47904 . 36 18 81 63 98 31 2.0 3.3 33 (K201 X38-1 1) X N82481 . . . 40 18 79 98 100 34 1.0 3.6 54 (K201RX38-ll)XKys . . 31 17 80 22 99 32 1.0 50 (K201RX38-1DXK4 . . 44 19 82 46 98 37 1.0 53 (K201RX38-11) XKy36-ll .... . . 36 21 79 55 99 36 1.0 4.3 52 (K201RX38-11) XCI.7 . . 40 18 81 78 100 35 1.0 2.7 51 (K201RX38-11) XCI.21E . . 49 18 82 58 100 32 1.0 Average . . 42 18 81 65 99 33 1.8 1.3 B Double crosses 111. 1852.. . 50 18 82 75 100 34 1.5 .9 AES805 . . 48 15 80 57 100 31 1.5 1.7 K1830 . . 45 16 80 52 100 34 1.2 1.7 111. 1850 . . 41 18 80 85 99 33 2.2 .8 Average . . 46 17 80 67 100 33 1.6 1.3 Significant difference 9 20 2 3 .9 ' Grade 1 is most resistant; grade 4 is most susceptible to high temperature. 1955] EXPERIMENTAL COEN HYBRIDS: 1954 TESTS 29 Table 12. DOUBLE-CROSS HYBRID NUMBERS, PEDIGREES, AND INDEX TO TABLES Hybrid Pedigree Performance given in Table No. Illinois hybrids 21 (Hy2 X 187-2) (WF9 X 38-11) 2ABCDE, 6ACDE 101 (M14 X WF9) (187-2 X W26) 2ABCDE 200 (WF9 X 38-11) (L317 X K4) 10ABCDE 274-1 (Hy2 X WF9) (Oh7 X 187-2) 4BCDE, 6ABCDE 972A-1 (Hy2 X L317) (WF9 X Oh7) 4BCDE, 6ABCDE 1091A (Hy2 X 187-2) (M14 X WF9) 2ABCDE 1277 (M14 X WF9) (1.205 X 187-2) 2ABCDE, 4ABCDE 1279 (M14 X WF9) (A375 X 187-2) 2ABCDE 1280 (M14 X WF9) (Os420 X 187-2) 2ABCDE, 4ABCDE 1281 (M14 X WF9) (A374 X A375) 2BCDE 1289 (M14 X W22) (WF9 X 1.205) 2ABCDE, 3B 1290 (M14 X 187-2) (WF9 X 1.205) 2ABCDE, 4ABCDE 1332 (Hy2 X Oh7) (WF9 X 38-11) 4BCDE, 6ABCDE, 10ABCDE 1349 (38-11 X Mo940) (K155 X K201) 10ABCDE 1375 (M14 X WF9) (N6 X OhSIA) 2ABCDE 1421 (Hy2 X WF9) (P8 X Oh7) 6BCDE 1493 (WF9 X 1.205) (Oh28 X W22) 2BCDE 1511 (Hy2 X WF9) (38-11 X L304A) 4BCDE, 6ABCDE, 10CDE 1539A (38-11 X CI.7) (K201 X CI.21E) 10ABCDE 1555A (WF9 X Oh51A) (1.224 X Oh28) 2ABCDE, 4ABCDE 1557 (M14 X Oh28) (1.205 X OhSIA) 2ABCDE 1558 (M14 X WF9) (1.205 X Oh28) 2ABCDE 1559B (M14 X Oh28) (WF9 X OhSIA) 2ABCDE 1560A (WF9 X OhSIA) (1.205 X Oh28) 2ABCDE, 4ABCDE 1570 (Hy2 X Oh41) (WF9 X 38-11) 4BCDE, 6ABCDE, 10ABCDE 1575 (M14 X WF9) (L12 X Oh28) 2ABCDE, 4ABCDE 1579 (M14 X Oh43) (A73 X Oh5) 2BCDE 1585 (M14 X L289) (Oh5 X Oh43) 2BCDE 1595 (WF9 X 1.205) (187-2 X W22) 2ABCDE 1617 (WF9 X BIO) (Oh7 X Oh41) 4BCDE 1656 (C103 X Hy2) (WF9 X 38-11) 10BCDE 1657 (K4 X Oh7) (K201 X CI.21E) 10ABCDE 1759 (WF9 X 38-11) (Oh4C X Oh45) 6BCDE 1760 (WF9 X 38-11) (Oh29 X Oh45) 4BCDE 1764 (Hy2 X WF9) (38-11 X J47) 6BCDE 1767 (Hy2 X Oh45) (WF9 X 38-11) 6BCDE 1771 (Oh7B X CI.7) (T8 X CI.21E) 10BCDE 1777 (Hy2 X WF9) (R114 X R116) 6BCDE 1788 (WF9 X 38-11) (Oh41 X CI.21E) 6BCDE, 10BCDE 1799 (M14 X WF9) (B8 X Oh51A) 2CDE 1800 (M14 X WF9) (A73 X A295) 2CDE, 3B (Table is continued on next page) 30 BULLETIN No. 584 [January. Table 12 Continued Hybrid Pedigree Performance given in Table No. Illinois hybrids (continued) 1802 (M14 X WF9) (A295 X Oh51A) 2CDE 1813 (C103 X Oh45) (Hy2 X WF9) 4CDE, 6DE 1814 (Hy2 X WF9) (M14 X Oh45) 4CDE 1819 (R2 X WF9) (R61 X Oh43) 4CDE 1826 (WF9 X B35) (K237 X Oh45) 4CDE 1831 (WF9 X W146) (K237 X Oh45) 4CDE 1849 (C103 X 38-11) (K201 X CI.21E) 10CDE 1850 (C103 X CI.21E) (38-11 X K201) 10CDE, 11B 1851 (C103 X 38-11) (Oh7 X CI.21E) 10CDE 1852 (C103 X CI.21E) (38-11 X Oh7) 10CDE, 11B 1856 (38-11 X Oh?) (K201 X CI.21E) 10CDE 1857 (38-11 X Oh41) (K201 X CI.21E) 10CDE 1859 (38-11 X Oh?) (Oh41 X CI.21E) 10CDE 1861 (M14 X WF9) (1.224 X Oh28) 2DE 1862 (M14 X WF9) (Oh43 X Oh5lA) 2DE 1863 (M14 X WF9) (1.205 X Oh43) 2DE, 3B, 4DE 1864 (M14 X WF9) (Oh43 X W22) 2DE, 4DE 1865 (M14 X WF9) (Oh5 X Oh43) 2DE 1866 (M14 X WF9) (Oh26A X Oh45) 2DE 1868 (C103 X Oh43) (Hy2 X WF9) 4DE 1873 (C103 X M14) (R75 X Oh43) 4DE 1875 (C103 X 38-11) (Hy2 X WF9) 4DE 1876 (R97 X R98) (WF9 X 38-11) 6DE 1877 (R99 X R100) (WF9 X 38-11) 6DE 1880 (R103 X R104) (WF9 X 38-11) 6DE 1884 (C103 X R100) (WF9 X 38-11) 6DE 1889 (C103 X Oh45) (38-11 X Oh29) 6DE 1890 (C103 X Oh45) (R75 X 38-11) 6DE 1893 (C103 X 38-11) (Oh7B X Oh29) 10DE 1896 (R138 X R139) (R140 X R141) 6DE, 10DE 1896A (R139 X R141) (R138 X R140) 4DE 1897 (R138 X R141) (R139 X R143) 10DE 1902 (R138 X R142) (R139 X R141) 2DE 1903 (M14 X WF9) (R119 X R120) 2E, 4E 1904 (R81 X R85) (WF9 X 38-11) 4E, 6E, 10E 1905 (R81 X R120) (WF9 X 38-11) 4E, 6E, 10E 1906 (Hy2 X WF9) (R81 X R119) 4E, 6E, 10E 1908 (R154 X R155) (WF9 X 38-11) 4E, 6E, 10E 1909 (R130 X R151) (WF9 X 38-11) 4E, 6E, 10E 1910 (R154 X R156) (WF9 X 38-11) 4E, 6E, 10E (Table is continued on next page) 1955] EXPERIMENTAL CORN HYBRIDS: 1954 TESTS 31 Table 12 Continued Hybrid Pedigree Performance given m Table No. Illinois hybrids (continued) 1911 (R130 X R153) (WF9 X 38-11) 4E, 6E, 10E 1912 (R151 X R156) (WF9 X 38-11) 4E, 6E, 10E 1913 (R151 X R154) (WF9 X 38-11) 4E, 6E, 10E 1914 (R153 X R155) (WF9 X 38-11) 4E, 6E, 10E 1915 (R151 X R155) (WF9 X 38-11) 4E, 6E, 10E 1916 (R130 X R154) (WF9 X 38-11) 4E, 6E, 10E 1917 (R153 X R154) (WF9 X 38-11) 4E, 6E, 10E 1918 (R151 X R153) (WF9 X 38-11) 4E, 6E, 10E 1919 (R130 X R156) (WF9 X 38-11) 4E, 6E, 10E 2214W (R30 X Ky27) (H21 X K64) 10ABCDE 2235W (H21 X K64) (33-16 X Mo2RF) 10ABCDE 2246W (R144 X R145) (R148 X R149) 10DE 2247W (R144 X R145) (R146 X R148) 2E, 4DE 6015 (R84 X 38-11) (R118 X K4) 2E 6016 (R78 X K4) (R84 X 38-11) 7B 6021 (R75 X R76) (R84 X K4) 4E, 6E, 7B 6052 (R78 X 38-11) (R84 X K4) 2E 6062 (R76 X K4) (R78 X R84) 2E 6074 (R75 X R87) (R78 X R83) 2DE 6075 (R75 X R83) (R78 X R87) 6DE, 10DE 6076 (R76 X R78) (R87 X R117) 10DE 6079 (R78 X R84) (R87 X R119) 10DE 6102 (R75 X R85) (R84 X R87) 10DE Miscellaneous hybrids AES 510 (WF9 X W22) (H19 X B9) 2E AES 610 (M14 X A73) (Oh43 X OH51A) 2CDE AES 702 (111. 1790) . . . (C103 X M14) (Hy2 X WF9) . . . .2BCDE, 3B, 4BCDE, 5C AES 801 (WF9 X B7) (BIO X B14) 6CDE AES 802 (Hy X WF9) (38-11 X N6) 6CDE AES 803 (WF9 X 187-2) (N6 X K148) 6CDE AES 805 (111. 1770). . .(C103 X Oh45) (WF9 X 38-11) 4BCDE, 6BCDE, 7B, 8C, 9C, 10CDE, 11B AES 806 (Hy X WF9) (N6 X N15) 4CDE, 6E AES 903W (H28 X K55) (H30 X K41) 10E Ind. 0421 (M14 X WF9) (B9 X W22) 2CDE Ind. 1405 (H41 X H42) (H45 X H46) 4CDE Ind. 2401 (M14 X WF9) (K237 X Oh45) 4E Ind. 2609 (WF9 X 38-11) (H14 X Oh43) 6E Ind. 9502 (H26 X H27) (H28 X H29) 6E Iowa 4297 (M14 X 187-2) (WF9 X 1.205) 4BCDE, 5C Iowa 4558 (M14 X WF9) (B8 X B21) 2E (Table is concluded on next page) 32 BULLETIN No. 584 Table 12. Concluded Hybrid Pedigree Performance given in Table No. Miscellaneous hybrids (concluded) Iowa 4615 (Hy X WF9) (B14 X B36) 6E Iowa 4630 (M14 X B21) (WF9 X OhSIA) 2E I.S.P. 2 (C103 X Oh45) (M14 X WF9) 2CDE K1830 (K201 X 38-11) (K4 X CI.7) 11B Minn. 4 (A286 X A295) (A375 X Oh51A) 2E Minn. 40 (A73 X A401) (A286 X OhSIA) 2E Mo. 804 (CI.7 X K4) (38-11 X CI.21E) 10ABCDE Mo. 862 (K201 X T202) (CI.21E X Mo567) 10BCDE Mo. 4041W (WhHy X K55) (Wh38-ll X 33-16) 6CDE Mo. 8010W (K64 X Mo22) (Till X T115) 10E Ohio M15 (Oh26 X Oh51) (A X W23) 2CDE Ohio K24 (WF9 X OhSIA) (Oh33 X Oh40B) 2BCDE, 3B Ohio 3247 (Oh43 X Oh45) (OhSIA X W22) 4E Ohio 4808 (Oh4C X OhSIA) (Oh28 X Oh45) 6CDE Ohio 5305 (A73 X OhS) (Oh26A X OhSIA) 2E Tenn. 3473 (M14 X 751) (T206 X 61.984-8) 6E Tenn. 3744 (H21 X K6) (Till X T115) 10E U.S. 13 (Hy X L317) (WF9 X 38-11) 6ABCDE, 7B, 8C, 9C, 10ABCDE 45001-5556701 UNIVERSITY OF ILLINOIS-URBANA Q.630.7IL6B C002 BULLETIN. URBANA 574-5901954-55 30112019529384