B RAR.Y OF THL U N I VER.S ITY Of ILLINOIS AttHICULTUBE 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 The person charging this material is responsible for its return to the library from which it was withdrawn on or before the Latest Date stamped below.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 OCT1 41994 m L161 0-1096 6,0501-5042801 1949 Illinois Tests of CORN HYBRIDS In Wide Use Bulletin 536 UNIVERSITY OF ILLINOIS AGRICULTURAL EXPERIMENT STATION in cooperation with ILLINOIS STATE NATURAL HISTORY SURVEY . . . February, 1950 MUNDELEIN DE KALB 'GALESBURG SHELDON URBANA SULLIVAN Location of 1949 test fields 'ALHAMBRA DIXON SPRINGS CONTENTS PLAN OF TESTS, GROWING CONDITIONS, PEDIGREES, PAGE CORN BORER LOSSES, DISEASE DAMAGE 467-480 MEASURING PERFORMANCE 480-482 RESULTS OF TESTS 483-495 Northeastern Illinois : Mundelein 483 Northern Illinois: Woodstock and DeKalb 484-485 West North-Central : Galesburg 486-487 East North-Central : Sheldon 488-489 South-Central : Sullivan 490-491 Southern : Alhambra 492-493 Extreme Southern : Dixon Springs 494495 Soil Adaptation Test : Urbana 496-497 SUMMARY 498-499 CONTRIBUTORS AND INDEX 500-503 Special acknowledgment is due to H. W. BEAN for direction of and assistance with the punch -card analysis of the data, and to F. R. EARLE and other members of the Analytical and Physical Chemical Division of the northern Regional Research Laboratory, U. S. Department of Agriculture, Peoria, for the oil and protein analyses. Acknowledgment is also due the following persons for their collaboration in these tests: Farm advisers and assistants in five counties: R. T. NICHOLAS. Lake; A. R. KEMP, HOWARD TOLLEY, and JAMES KUNTZ, Knox; K. R. IMIG, Iroquois; and P. M. KROWS, Moultrie. Vocational agriculture teacher: ED. J. DUNPHY, Sullivan. Urbana, Illinois (licpriutcd with corrections March. I960) Publications in the Bulletin series report the results of investigations made or sponsored by the Experiment Station February, 1950 ILLINOIS TESTS OF CORN HYBRIDS IN WIDE USE IN 1949 J. W. PENDLETON, G. H. DUNGAN, J. H. BIGGER, BENJAMIN KOEHLER, A. L. LANG, R. W. JUGENHEIMER, and G. E. McKlBBEN 1 THE SECOND LARGEST CORN CROP in history was grown in Illinois in 1949. Total production was estimated at 514 million bushels and average yield at 56 bushels an acre. 2 This is 36 million bushels below the total production of the record-breaking year 1948 and 4 bushels below the average acre-yield. Comparison of yields in the 1948 and 1949 hybrid-corn tests conducted on the four fields in northern and central Illinois showed a 19-bushel, or 24-per- cent, reduction in yield per acre. PLAN OF THE TESTS Number of hybrids and their sources. Three hundred sixteen hybrids were grown on seven regular test fields. Six single-cross and three double-cross hybrids were grown on two special test fields which differed in productivity. Sixty-one companies and individuals and the Illinois Station furnished seed for the tests (see pages 500-501). Eighty-one hybrids were grown at Galesburg, Sheldon, Sullivan, and Alhambra. At the Dixon Springs Experiment Station 60 entries were planted on the bottomland field and 11 entries on the upland field. Seventy-five entries were tested at DeKalb and 40 at Mundelein (Table 1, page 468). A representative of the Illinois Station took almost all the seed for planting the test fields directly from the warehouses of the pro- ducers entering the corn. A few producers delivered small quantities to the Station. Seed of Illinois and U. S. hybrids in commercial pro- duction was obtained from the producers of these hybrids and also from the Illinois Seed Producers Association. 3 1 J. W. PENDLETON, Assistant in Crop Production; G. H. DUNGAN, Professor of Crop Production; BENJAMIN KOEHLER, Professor of Crop Pathology; A. L. LANG, Professor of Soil Fertility; R. W. JUGENHEIMER, Professor of Plant Genetics; G. E. McKlBBEN, First Assistant in Agricultural Research; J. H. BIGGER, Entomologist, Illinois State Natural History Survey. 2 Estimates for the average yield for the state were furn ; shed by the ILLINOIS COOPERATIVE CROP REPORTING SERVICE, Illinois State Department of Agriculture cooperating with the U. S. Department of Agriculture. 3 The seed supplied by the Illinois Seed Producers Association was single crosses used in the Soil Adaptation test. 467 468 BULLETIN No. 536 [February, Table 1. GENERAL INFORMATION: Illinois Cooperative Hybrid Corn Tests, 1949 Field, county, location, and number of entries Date planted Date Average harvested *g{d Mois- ture in grain Dam- aged corn Erect plants Stand Protein Oil bu. perct. perct. perct. perct. perct. perct. Mundelein: Lake NE 40. . May 20 Oct. 25 85.1 22.2 1. 4 74 82 11.0 5.0 DeKalb: DeKalb N75.... May 23 Nov. 15-16 58.5 18.1 1 .5 91 82 9.1 4.3 Galesburg: Knox WNC 81 May 16 Oct. 27 88.6 18.9 2 8 76 82 10.0 4.7 Sheldon: Iroquois ENC 81 May 28 Oct. 31 82.8 20.4 2, 9 69 83 10.3 4.5 Sullivan: Moultrie SC 81 . . May 17 Nov. 1 85.1 18.4 2 .9 73 92 9.2 4.5 Alhambra : Madison S 81 . . June 2 Nov. 21 59.8 17.0 1 .4 71 84 9.7 4.3 Dixon Springs : Pope Ex.S Bottomland 60 .. May 26 Nov. 3 67.6 18.4 2. 69 85 10.5 4.7. Upland 11 May 25 Nov. 3 63.5 20.1 2 7 82 84 10.0 4.5 COOPERATORS: jAYandPAKK ALLANSON, Lake county; R. HAWTHORNE, K nor county; JOHN B. RICE, Iroquois county; R. B. VANDEVEER, Farm Manager, Illinois Masonic Home Farm, Moultrie county. The DeKalb field in DeKalb county and the Alhambra field in Madison county are managed by the Illinois Station; FRANCIS HART and ERVIN ISENBERG are overseers. The Pope county fields at Robbs are part of the Dixon Springs Experiment Station of which R. J. WEBB is superintendent. t Selection of entries. Each year seed corn producers are given an opportunity to nominate hybrids for testing on the various fields. For some fields the number of hybrids nominated is so great that they can- not all be tested. Most of the hybrids selected are extensively grown in this state. A number of experimental hybrids that have shown promise for commercial production were included. Other hybrids were grown to meet the field-performance requirement for certification. Generally six Station-produced, open-pedigree hybrids were included to serve as standards or checks. Soil characteristics of fields. The test fields were medium to high in productivity, and each represents a soil type common to the region where it is located. Each field was selected carefully for uniformity in soil type, productivity, and drainage. Approximate locations of test fields are shown in map on inside front cover. Information on soil characteristics and management is given in Table 2. Field-plot design. A 9 x 9 randomized, lattice-square field-plot design with 5 replications was used on the Galesburg, Sheldon, Al- hambra, and Sullivan fields. Controlled, randomized block designs were used at all other locations. Method of planting. All test fields were planted by hand on land prepared in the regular way for corn. Each plot consisted of 2 rows 10 hills long, except at Alhambra where the plots were only 9 hills long. Three kernels were dropped in each hill except on the fields at Dixon Springs, where only 2 kernels were planted. 1950] ILLINOIS TESTS OF CORN HYBRIDS: 1949 469 Table 2. TESTING FIELDS: Soil Characteristics and Management Practices q ., , Lime Available Available Previous crops and soil merit Phosphorus potassium management NORTHEASTERN: Mundelein tons Saybrook silt loam 3 Medium High Corn 1946; oats 1947; red clover-alfalfa pasture 1948; rock phosphate added in 1947; manured in 1949. NORTHERN: DeKalb Lisbon silt loam (northeast corner, Harpster clay loam). . Slight High Soybeans 1945; corn 1946; oats and mixed clovers 1947; lime has been applied. WEST NORTH-CENTRAL: Galesburg Muscatine silt loam 4 Medium Very high Soybeans 1946; oats 1947; red clover-tim- othy hog pasture 1948; manured 1948. EAST NORTH-CENTRAL: Sheldon Lisbon silt loam 1 Very high High Corn 1945; oats 1946; alfalfa pasture 1947- 48; 2 tons lime 1947; rock phosphate and potash applied in past. SOUTH-CENTRAL: Sullivan Flanagan silt loam 4 Medium High Corn 1943; oats 1944; sweet-clover pasture 1945; corn 1946; oats, sweet clover 1947; corn 1948; 2 tons lime 1947. SOUTHWESTERN: Alhambra Cowden silt loam High High Oats 1943; red clover 1944; corn 1945; soy- beans 1946; oats 1947; red clover 1948. EXTREME SOUTHERN: Robbs (Dixon Springs) Upland field: Ava silt loam. ... Very low Medium Oats 1946; red clover 1947; wheat, sweet clover 1948. Bottomland field: Bonnie silt loam 1 Very low Very high Corn, rye 1946; rye, sweet clover, lespedeza 1947; sweet clover-lespedeza 1948. The soil-type designations, uniformity, and physical characteristics of the above fields have been approved by HERMAN WASCHEK, Assistant Professor of Soil Survey Research. GROWING CONDITIONS Generally speaking the growing season of 1949 was another ex- cellent one for corn in Illinois. An extended period of warm, fair weather during late April and early May allowed the best seedbed preparation in many years. Fairly well distributed early rainfall and hot humid days during July favored excellent growth. In fact, the response of the crop to these early growing conditions led to predic- tions for the highest yield in history. At harvest time, however, the predicted yields did not materialize. 470 BULLETIN No. 536 [Febnmry, Their failure was primarily due to two factors : the heaviest corn borer infestation on record and the most severe stalk rot damage observed for many years. Stands were variable at four test fields. At DeKalb and Galesburg stands suffered from dry periods following planting. The plots at Sheldon and Mundelein were of necessity planted in cold, wet seed- beds, and stands were correspondingly impaired. A severe windstorm in late July at Sheldon caused almost uni- form lodging among all varieties. Lodging at Galesburg, Sullivan, and Mundelein was largely due to corn borers and stalk rots. A warm, late fall allowed the crop to mature throughout the state, and moisture in the grain at harvest was well below normal. Despite favorable weather, however, the quality of the corn was generally disappointing. A series of factors was responsible for the poor quality corn borers, stalk rot diseases, leaf blight, lodged plants, dropped ears, and ear rot diseases. CORN BORER LOSSES Financial. The European corn borer, Pyrausta nubilalis (Hbn.), did greater damage to the Illinois corn crop during 1949 than in any other year since it came into the state. During the fall infestation was about three and one-half times as great as in 1948. Losses increased from about 25 million dollars in 1948 to about 65 million in 1949. (These losses do not, however, take into account the reduction in yield caused by ears that are dropped after borers tunnel into the ear shanks.) The increase in borer numbers can be attributed to two things: extensive early planting, and weather that was practically ideal for maturing the first generation of borers and establishing the second generation. In 1949 the insect moved southward, and for the first time borer damage is reported at Sullivan, in Moultrie county. Dropped ears and picker losses. "Percent dropped ears" and "Estimated picker loss" have been included for the first time in the record of borer damage (Tables 4 to 7). "Percent dropped ears" is the record of the ears that were already on the ground when picking started, because of borer damage in the ear shank. "Estimated picker loss" is the number of ears it was estimated 1950} ILLINOIS TESTS OF CORN HYBRIDS: 1949 471 would not be recovered from the plot by a mechanical picker because of borer injury to the ear shanks. To arrive at this figure, the recorder tapped each standing plant with the side of his hand and raised each lodged plant to a horizontal position, then allowed it to drop by its own weight. The ears knocked off by this treatment it is believed would have been knocked off by a mechanical picker and not re- covered. Estimates arrived at in this way are probably conservative. The total corn borer loss for any entry would be the sum of the percentages shown for dropped ears and picker loss. An actual count in 30 farm fields infested with borers showed an average of 3 percent of the ears dropped before picking and 1 1 percent dropped after the picker had gone through the field. Assuming an average of 10,000 ears per acre, this 11-percent loss means that be- cause of corn borer damage 1,100 ears per acre remained in the fields after picker harvest. This count was made in an area between McHenry and Champaign counties. PEDIGREES OF 31 HYBRIDS Following is a list of open-pedigree hybrids whose performance is shown in this bulletin. 111. 21 (HyX187-2)(WF9X38-ll) 111. 101 (M14XWF9)(187-2XW26) 111. 200 (WF9X38-11)(L317XK4) 111. 201 (WF9X38-11)(L317X 187-2) 111. 206 (5120XL317)(WF9X38-11) 111. 246 (HyXWF9)(L317X 187-2) 111. 269 (HyXWF9)(W8XW32) 111. 273-1.. .( WF9 X 38-1 1)(O7X 187-2) 111. 751 (AX90)(HyXWF9) 111. 784 (HyX5120)(L317XK4) 111. 972-1.. .(HyXWF9)(L317XO7) 111. 972A-l..(HyXL317)(WF9XO7) 111. 1091. . . .(Hy2XWF9) (M 14X187-2) 111. 1091A. . (Hy2X 187-2) (M 14 XWF9) 111. 1180....(M14XWF9)(W8XW32) OhioC-92.. 111. 1246 (R61 X 187-2) (WF9 X38-11) 111. 1248 (R61XO7)(WF9X38-11) 111. 1277 (M 14 XWF9) (1.205X187-2) 111. 1279 (M 14 XWF9)(A375X 187-2) 111. 1337 (Hy2XR61)(WF9X38-ll) 111. 1459 (38-llXK4)(K201XCI.21E) 111. 1508 (L7XL17)(L12XOh28) 111. 1515 (HyXB10)(WF9X38-ll) 111. 1521 B. . .(38-llXCI.21E)(K201XT8) 111. 1540A. . .(38-llXK201)(K155XCI.21E) 111. 1540B. . .(38-llXK155)(K201XCI.21E) 111. 1570 (Hy2XOh41)(WF9X 38-11) 111. 2214( W) . . (R30 X Ky27) (H21 X K64) 111. 2216(W). . (H21 X CL61) (K64 X Ky27) U. S. 13 (HyXL317)(WF9X38-ll) (HyXO7)(WF9X 38-11) 472 BULLETIN No. 536 [February, Table 3. CORN BORER DAMAGE: Three- Year Summary at Three Locations Rank Entry Plants broken below Resistance rating compared with Plants Rank Entry *$ Resistance rating compared with average average NORTHERN ILLINOIS: Kings 1946, Woodstock 1947, and DeKalb 1949 1 2 2 4 5 6 7 8 Funk G-29 percl. 4.1 5.7 5.7 6.1 6.5 7.5 7.9 8.5 198 142 142 133 125 108 103 95 8 10 11 12 13 14 Illinois 751 (Station) perct. 8 5 95 90 87 75 70 66 Pride D-66 . Frey 425 9.0 Sieben S-450 Crow 407 9.3 Sieben S-340 Pioneer 340 10 8 Illinois 101 (Station) Illinois 1091 A (Station) . . Ferris F-ll. Super-Crost F-138. . . . 11.5 Crow 360 . 12.3 Average of all entries. . 8.1 National 114-1.. In Column 3 (plants broken below the ear) differences are not significant. WEST NORTH-CENTRAL ILLINOIS: Galesburg 1943, 1946, and 1949 1 Pioneer 339 6.5 189 2 Holmes Utility 29 8.4 146 2 Moews550 8.4 146 4 FunkG-37 10.7 115 5 Top Yield M-546 12.5 98 Crow 633 12.9 95 Lowe 520 13.0 95 U. S. 13>> 21.9 56 Average of all entries. . . 12.3 In Column 3 (plants broken below the ear) differences are not significant. EAST NORTH-CENTRAL ILLINOIS: Sheldon 1945, 1947, and 1949 1 Lowe 520 17.2 149 2 Producers 940 20.7 124 3 Illinois 21 21.5 120 4 Frey 644 22.5 114 4 Keystone 38 22.5 114 6 U. S. 13 23.4 110 7 Pioneer 300 23.6 109 8 Frey 692 24.1 107 9 Producers 730 25.6 100 10 Pioneer 313B. . . 27.1 95 11 Pioneer 304 27.3 94 12 Pioneer 332 27.5 93 13 Lowe 523 28.2 91 14 Crow 608 28.8 89 15 Kelly K-374 29.5 87 16 Crow 633 30.8 83 17 Frey 645 32.0 80 18 Kelly K-77 32.8 78 Average of all entries. . . 25.7 In Column 3 (plants broken below the ear) differences are not significant. entries s 1949 Only those plants broken below the ear at the point of borer damage were included. b Average of two ubmitted by Lepper and Station in 1949. c Average of two entries submitted by Pfeifer and Station in 1950} ILLINOIS TESTS OF CORN HYBRIDS: 1949 473 Plants Resistance K;," -Sj-k D sr d average b tS t~OLOO>O.NOCOOtO^COT). Ot-tOO=tOt~O^OSOO,N.O "*OO>OC^ fe O5OOOOOOOOO-H-H-H rf I-H 1-1 IN --3 "c "C."o "ft* 3 'E .2 -5 3 .. 3 a 2 a * & l-lifl|^sl||^2g| 59 Super-Crost F-1 rO Ponder P-180. . ri Lowe MME. . . 72 Ferris F-12. . . . r3 MunsonMX... r3 Huey H-75 75 Crow 360 Average of al S "S D = rf average 1 " ^ ot~r>.oot~oooor~r~oo oocoO O r-i C-I-^ I-HI-I t-OOOJO'S < O5O)IX)00"C^I < '^ 1 Jl' e* S S* 4J ^ s -a .8* tOI-t=CC3:!Ni.-: M CO c> SB-"" w -o 0.2 ft. rt "5 f^' n Q gj nr o ^0 c ^ S'* ^SSSSggSSSSSwWwSwSSSSwW^^^WWWWMWMwSwSw^^S S O 'O ,D ii O> * 00 - ' II a *> i ^ c c*3 CQ*E$5- * ' ^ * *"~ "* - i co . "^^ -O - o3 'C'^H . ^ H 8?|5liii|j3| 8 a2|j?|ij5Siii SB |3ffi columns showing columns showini K .S .5 ts ? ^^at~MO>oaocQOt>oeeaot>c*i0ao>c4*oeb.^>QOeQ<**.>to-coo * W a lj CCCOOCOC^OO5OiOi-HO:OO^H^HTfO5CCiOCOOOiCt*(NOOt > -O3iXkOOOO!N(NOXOO rt o g 10 to Q O31COCCOOOt^OOiOr^^H^-.Ob*iCiO>O < ^TfOiOOCOCC^-OOOOOC>OcOCa33ojd"rt5C5cS C f^ : S=="E-d^5 : ?"SS S?do.= ^?- ^.-s =^'= = ?'= ~ ~~3 cj:'C ?~j, z v *= o - ~ -- ~Z s s-= 5^ ?-*;: =i = -i == s - 2tc 2 0<: o " z< ~^ ~ ?^ c -E"= < ~^ - '-~~ - =< i.'-~~S '~ -~-- ~ == ?"= c The following differenc points; in columns 1950} ILLINOIS TESTS OF CORN HYBRIDS: 1949 475 C3 4> 03 HI *ik, Cjsj O -2 PT3 ~ O 1C 1-1 CO CO CO CO CO CN * CN i-i CO * rf t- h- 1C *> t>- O O5 t CO CN CO OS CO b- O US CN 00 C3! O5 OS CO t>- ^< CO O CO tO tO to t~ <3> O < O 00 CO CO m tO t^ O> O O * i t>- O> CO 00 O (N CO 1-1 CO O t- CO ^ <} T}< Tf * T)< T}< if Tt L- i- o .- i- i- i- O "O iC O CD CO CO CO CO CO CO CO CO t || I'd _Q U *^ +J to rt ho bo c c o o J3 J3 to to CO (O C C E E ^ 5 "o "o o o c c II g Q S -S KN CN * II-H CO CN CO -COCOt-O2i':Ot-C33O5O!COCOt^^^t < ^i < t-OOOOCOOCNCOCO"OOO 5 rtcO CN ^CNCOCO >-i CN CN CO Tt< CO 'tf -( CO 1-1 CO CN 00 1-1 CN *f f >C ri n ri r-t <-t *-* OJ > i S-S o te c ^ rt .H c t) U, VH tfl 03 V o to c c ccooocco o JC C bfl 1. K o . c :| ; ji ; ; ; ; ; ;f ; Q N) V 2 ! 3 . riio -'Nc II "^BQ t^ . 02 S^ ^A^ : Sfe : 1 :^ : 3sl I" ^ :-HN M CO .irr o Is >> e< % i i& TfTjO O: COOOOit--T)O!O 2g S-^ 8.1 _ (U C 10 u 10 jjj o o ^ Keystone 33 ... 58 .8 1.8 18.7 94 88 Medium 8.6 3 9 88 Moews 85 ... 58 .7 .9 17.0 96 81 Medium 9.5 4, S 87 Appl A-202 .. . 58 .4 1.1 18.3 88 84 Medium 9.6 4 ,4 : Pioneer 4040 . . 55 ,5 1 .2 17.4 96 78 M-high 8.5 3.8 56 Illinois 751 (Station) . . 55 ,4 1 .2 18.7 88 73 M-low 10.6 3.8 56 Pioneer 340 . . 55 ,4 2 ,4 17.9 92 89 Medium 10.4 4.1 56 Super-Crost 213 . . 55 .4 1 .1 16.9 89 82 Low 9.2 4.4 59 Crow 407 . . 55 .3 . 18.8 93 85 M-low 8.6 4.8 60 Munson M-X . . 54 ,6 1 .0 18.9 87 82 Low 9.5 4.4 61 Illinois 1508 (Station) . . 54 ,8 1 .5 19.2 91 87 M-low 8.3 3.7 62 Producers 315 . . 54 ,2 4 ,9 18.1 84 83 Low 8.6 4.8 62 Super-Crost F-138 . . 54 ,2 2.. 3 18.8 91 73 M-low 10.1 3.8 64 Pioneer 349 . . 54 ,0 1 .2 17.5 92 81 Low 8.8 4.3 65 Munson M-3 . . 53 .9 1 ,2 17.8 91 81 Medium 9.2 4.5 66 Pride D-66 .. 52 ,9 .7 18.9 94 76 Medium 10.4 3.9 (17 Moews 14 . . 52 ,8 1 .5 18.3 91 83 M-low 9.4 4.1 68 Crow 360 . . 52 .5 .5 18.8 86 85 M-high 8.6 4.0 68 P.A.G. 282 . . 52 .6 1 .1 18.3 94 72 M-low 9.3 4.4 70 Stiegelmeier S-360 . . 52 ,1 I .0 19.1 87 92 M-high 8.1 4.3 71 Ferris F-ll . . 51 .8 .7 18.4 91 72 M-low 10.2 4.5 72 Appl A-136 . . 46 .8 1 .1 18.7 92 75 M-high 9.7 3.8 -:\ Producers 305 . . 46 .0 .8 17.9 93 71 Low 9.8 4.3 74 Pfister 187 Hybrid LF 123. . . . . 43 .6 .6 18.4 89 74 Medium 9.5 3.7 75 Doubet D-1E .. 42 ,5 1 .3 17.3 93 73 M-low 9.6 4.0 Average of all entries . . 58 .5 1 .5 18.1 91 82 9.1 4.3 Average of Illinois 101 (Producers) 1947; Illinois 101 (Station) 1948 and 1949. 486 BULLETIN No. 536 [February, Table 11. WEST NORTH-CENTRAL ILLINOIS: Galesburg Rank Entry T . i Damaged Mois- corn in ture in Erect shelled grain at plants sample harvest yield Stand Height of ear Protein Oil SUMMARY 1947-1949: Less than 4.8 bushels difference between total yields of any two entries is not significant. bu. perct. perct. perct. perct. perct. perct. 1 Pioneer 313B ... 103.3 4.8 23.8 60 M-high 2 SchwenkS-24 ... 102.7 2.0 22.2 71 High 8 Ainsworth X-21 ... 96.9 2.7 22.3 79 M-high 4 Pioneer 336 ... 95.8 2.1 21.0 71 High 5* U. S. 13 ... 93.4 2.4 23.1 72 High 6 P.A.G. 170 ... 92.8 .8 21.1 76 M-high .... ... 7 Lowe 514 ... 92 . 5 1.8 20.9 67 M-high .... Producers 940 ... 92.2 3.5 21.0 78 High 9 National 125-1 ... 92.1 2.9 21.2 72 Medium .... ... 10 Morton M-12 ... 91.6 3.5 21.1 74 M-high .... ... 11 Sieben S-440. . , . 91.1 1.3 20.0 69 Medium .... ... 12 P.A.G. 392 ... 90.7 1.8 20.8 75 Medium .... 13 Halting 380 ... 89.9 1.1 21.8 63. Medium .... ... 14 Hulting 101 ... 89.8 2.3 21.1 65 Medium .... -'. . . 15 FunkG-37 ... 88.0 1.9 20.5 73 M-high .... ... 16 Lowe 520 ... 86.2 2.1 21.4 75 M-high .... ... 17 Super-Crost F-169 ... 86.0 2.1 21.7 68 M-high .... ... 92 6 2 3 21.4 71 1949 RESULTS: Less than 10.6 bushels difference between total yields of any two entries is not significant. 1 Crow "Deep Root" . 105.6 9 18. 9 92 90 High 10.0 5.5 2 Huey H-23 ... 103.0 3. 9 18. 6 76 90 High 9.9 4.7 3 Illinois 1570 (Station) ... 101.9 1. 7 18. 8 82 91 High 10.9 4.6 4 Lowe 520 .. . 101.0 3. 4 18. 6 70 86 M-high 9.2 4.8 4 P.A.G. 170 . 101.0 1. 3 18. 4 82 84 M-high 9.3 4.3 6 Schwenk S-24 .. . 100.6 2. 4 19. 4 78 86 High 9.3 4.6 7 Crow 660 ... 98.9 3. 19. 2 85 82 Medium 9.7 5.3 8 Schwenk S-34 ... 98.7 5. 3 19. 1 77 85 High 9.5 4.5 9 Illinois 972A-1 (Station) ... 98.6 4, 6 19. 8 80 86 High 9.6 4.2 10 Munson M-13 ... 98.5 1. 7 19. 2 76 86 M-high 9.8 4.7 11 Top Yield M-546 . 97.1 2. 3 18. 5 74 78 High 9.9 4.9 12 Bo-Jac 68 ... 96.2 2. 2 17. 3 76 85 Medium 8.9 4.1 13 BearOK-35 ... 96.1 I. 2 18. 3 77 78 Medium 10.6 5.2 14 Pioneer 313B ... 95.6 7. 3 20. 2 58 87 M-high 9.4 4.7 14 Producers E102B ... 95.6 2, 7 19, 2 83 87 M-low 9.8 5.0 lf> National 115A ... 94.6 3, 7 18. 4 86 84 High 10.9 5.1 Hi P.A.G. 347 ... 94.6 1. 8 18. 1 77 87 Medium 10.5 4.8 18 Ainsworth X-21 ... 94.4 2, 9 19, 7 80 85 High 9.7 4.9 1!) Illinois 273-1 (Tiemann) ... 93.8 A. 8 19, 2 66 84 Medium 10.5 4.8 19 Munson M-H ... 93.8 2, 18, 8 80 82 M-high 10.4 5.2 21 U. S. 13 (Station) . 93.2 1, 8 19 ,7 73 88 High 9.6 4.6 22 Ainsworth X-13-3 ... 92.9 3 ,8 19 1 61 94 Medium 10.5 4.7 23 Morton M-12 ... 92.5 6 3 18, 1 82 80 M-high 10.3 4.6 24 Kelly K-374 ... 92.0 8, 5 19, 1 79 87 Medium 10.1 4.8 25 Illinois 21 (Station) ... 91.8 4, 3 20. 1 84 81 High 9.3 4.5 2r, U. S. 13 (Lepper) ... 91.8 2. 3 19 2 76 85 High 9.6 4.3 27 Illinois 1337 (Station) ... 91.4 3 2 20 5 74 83 High 10.1 4.6 27 Pioneer 304 ... 91.4 2, 5 20 7 80 85 M-high 8.7 4.8 29 P.A.G. 270 ... 91.3 i. 2 18 3 82 86 Medium 10.1 4.5 29 Sieben S-440E ... 91.3 9. 1 16. 3 72 83 M-low 9.5 4.8 31 Lowe 562 .... . 91.0 4 4 17 8 73 86 Medium 10.1 4.7 32 Funk G-95 ... 90.7 5 ,6 19 ,5 79 81 M-high 9.8 4.9 33 Stiegelmeier S-370 ... 90.6 1 2 18 9 72 78 Medium 9.3 4.1 34 Hulting 101 ... 90.2 4 6 18 8 71 81 Medium 9.4 4.7 35 lowealth AQ ... 89.6 8 .1 16 .7 79 84 Medium 9.6 4.4 86 Lowe 514 ... 89 . 6 1 .0 18 .7 72 84 M-high 10.0 4.6 37 National 125-1 ... 89.1 4 4 18 .9 80 84 Medium 11.0 5.1 88 Ainsworth X-201 ... 88.9 8 .1 19 .2 66 81 M-high 10.6 4.8 39 Ferris F-12 ... 88.8 4 5 19 8 77 85 M-high 10.4 4.6 40 Cargill 339 ... 88.6 ,9 19 ,0 69 80 M-high 10.4 4.8 (Table is concluded on next page) 1950] ILLINOIS TESTS OF CORN HYBRIDS: 1949 487 Table 11. WEST NORTH-CENTRAL ILLINOIS concluded Rank Entry Total Damaged Mois- acre corn in ture in vield shelled grain at sample harvest Erect plants Stand Height of ear Protein Oil 1949 RESULTS concluded bu. perct. perct. perct. perct. perct. perct. 41 Morton M-30 . . 88 ,3 2 .5 19.4 81 82 Medium 8.6 4.5 42 United U-47 . . 88 .2 5 .9 16.6 76 81 Medium 9.9 4.8 4:{ Pfister 187 Hybrid LF 456. .. . . 88 .1 I .5 18.8 83 76 Medium 9.5 4.4 43 Producers 900 . . 88 ,1 1 .3 19.2 73 83 Medium 9.6 5.1 43 Stewart S-ll . . 88 .1 8 .0 16.6 83 69 High 10.9 4.9 4<> Pioneer 339 . . 87 .6 1 .9 19.5 85 76 Medium 10.6 4.6 47 Appl A-136 . . 87 ,4 1 .8 20.2 67 75 M-high 9.3 4.4 47 Doubet D-ll . . 87 ,4 3 .6 18.5 78 85 Medium 10.3 4.6 47 Illinois 1515 (Station) . . 87 ,4 2 .1 19.8 79 82 High 10.1 4.8 60 BearOK-50 . . 87 a 3 .1 18.1 70 80 M-high 10.0 4.3 51 FunkG-93.. . . 86 .8 1 .0 18.4 75 82 Medium 10.6 4.7 52 Kelly K-42 . . 86 .7 1 .3 18.1 71 70 Medium 11.0 5.3 62 Moews 520 . . 86 ,7 1 .9 18.5 73 85 M-high 9.8 4.9 r>4 Producers 940 . . 86 ,5 2 .4 19.9 81 83 High 9.8 4.6 55 Ferris F-ll . . 86 ,2 6 .0 17.9 79 83 Low 9.8 5.0 86 Holmes Utility 19A . . 85 .2 3 .7 18.8 78 85 M-low 10.1 4.7 57 FunkG-37 .. 85 ,0 .7 17.4 85 80 M-high 9.5 4.8 68 Baird380 .. 84 ,5 2 .1 18.9 73 77 Medium 9.7 4.5 50 Crow 633 .. 84 a 3 .4 20.7 72 80 M-high 10.9 4.9 89 Doubet D-3W . 84 3 4 .0 18.6 74 84 Medium 9.9 4.9 61 Sieben S-440 . 84 .1 1 .1 18.0 69 83 M-low 9.6 4.6 82 lowealth 16 . . 83 .9 1.9 18.5 70 79 M-low 10.4 4.2 63 Sieben S-340 . 83 ,4 2 .2 19.3 72 75 Medium 10.4 4.6 1)4 Huey H-42 . 83 2 1 .2 19.2 81 85 High 10.5 4.8 66 Kelly K-77 . . 83 ,1 8 .2 18.8 81 81 M-high 10.1 4.8 66 Stiegelmeier S-340 . . 82 .7 1 .1 19.1 79 73 M-high 10.1 4.6 07 Pfister 187 Hybrid LF 789. .. . . 81 .8 2 .1 18.3 75 76 Medium 10.4 4.7 68 NullN-32 .. 81 1 .9 18.5 84 82 Medium 10.1 4.3 68 P.A.G. 392 . 81. 2. 9 19.0 78 90 Medium 9.9 4.6 70 HultingSSO . 80. 8 3 20.1 72 80 Medium 9.8 4.5 71 Super-Crost F-169. ...'.. . 80 .7 .7 18.8 68 75 M-high 10.3 5.0 72 Pioneer 336 .. 80 .5 .5 19.2 78 79 High 11.3 4.9 73 Holmes Utility 29 . . 80 ,3 4 .1 19.0 85 83 M-high 10.1 4.6 74 Producers E114B . . 79. ,7 6 ,3 20.8 75 86 Low 10.4 5.1 7. r > Moews 550 . . 77.4 .7 18.7 79 80 M-high 9.9 4.7 76 Keystone 41 . . 74 ,7 4 .1 18.5 78 82 Medium 10.9 4.5 77 Holmes Utility 39H . . 74. ,4 3 20.2 80 77 High 9.9 4.7 7S Super-Crost FD-7 . 74, 3 1 1 18.4 69 64 Medium 10.8 5.1 79 Moews 14 , . 74 ,1 .8 18.7 72 72 M-low 9.2 4.6 80 Pringle P-100 . . 72 ,1 .7 18.8 69 82 M-low 10.8 5.2 81 Pfister 187 Hybrid LF 123. . . .. 70 2 3. 7 19.1 79 78 Medium 9.8 4.6 Average of all entries . . 88 6 2 ,8 18.9 76 82 10.0 4.7 * Average of U. S. 13 (Morton, Lepper, Morgan) 1947; U. S. 13 (Lepper and Morton) 1948; U. S. 13 (Lepper) 1949. 488 BULLETIN No. 536 [February, Table 12. EAST NORTH-CENTRAL ILLINOIS: Sheldon Rank Entry rp , i Damaged Mois- aore corn in tur . e in Erect Id shelled grain at plants sample harvest Stand Height of ear Protein Oil SUMMARY 1947-1949: Less than 4.8 bushels difference between total yields of any two entries is not significant. .bit pel ct. per ct. perct. pei ct. perct. perct. 1 Keystone 38 ... 96 2 2 .0 22 .7 86 Medium .... - i. /- 2 Producers 940 ... 94 . 3 1, .5 22 .2 84 M-high .... ... 3 Illinois 21 ... 94 .0 3 .0 23 .0 80 M-high .... ... 4 P.A.G. 164 ... 93 9 2 .7 22 .9 85 Medium .... ... 5b U.S. 13 ... 93 2 .2 23 .7 83 M-high .... ... fi BearOK-88T ... 92 , 1 .1 25 . 80 Medium .... ... 7 P.A.G. 392 . . . 90 .4 1, ,5 22 ,4 83 Medium .... ... 8 Morton M-12 . . . 88 ,5 3 .9 22 .3 83 M-high .... 9 Lowe 523 . . . 88 ,8 2 .8 23 .4 79 Medium .... ... 10 Farmcraft FC-69 . . . 88 ,1 1 .9 24 .1 78 Medium .... ... 11 Crow 608 ... 87 ,8 1 .1 23 .9 78 Medium .... ... 12 Frey645 ... 87 ,1 2 .3 23 .7 82 Medium .... ... 13 Lowe 580 ... 85 , 2 .0 24 .5 81. ' Medium .... ... 14 Lowe 514 ... 84 8 2 .2 23 ,7 83 Medium .... ->'. . . 15 Crow 633 ... 84, 2 1, ,9 22 ,7 81 Medium .... ... 16 Kelly K-77 ... 83 2 2 22 .8 81 Medium .... ... 17 Moews 520 ... 79 .8 1 .2 23 .6 85 Medium .... 18 FunkG-211 ... 78 9 2 .0 22 .9 80 Medium .... ... 19 Lowe 520 . . . 78, 2 2 .8 25 ,7 81 M-high .... Average of all entries ... 87 8 2 .1 23 .5 82 1949 RESULTS: Less than 9.0 bushels difference between total yields of any two entries is not significant. 1 Crow "Deep root" . 98.3 1. ,9 20 .3 75 89 Medium 9.7 5.1 2 Schwenk S-34 . . 98.2 2 ,6 20 .7 72 87 High 10.3 4.4 3 Corn Belt 60A . . 97 . 2 3 .1 20 .8 63 79 M-high 9.9 4.6 4 Illinois 1246 (Holder) . . 96.1 5 .1 19 .0 72 88 Medium 10.5 4.9 5 Illinois 21 (Station) . . 95.0 .8 20 .4 71 90 M-high 10.0 4.5 6 Stiegelmeier S-370 . . 94.3 2 .7 18 .8 66 84 Medium 10.1 4.3 7 Lowe 520 . . 94 . 1 5 .0 20 .0 64 90 M-high 10.4 4.5 8 Ainsworth X-21 . . 92.4 4 .3 20 .6 74 91 High 10.2 4.8 8 Frey 645 . . 92.4 8 .0 18 .9 64 87 Medium 10.6 4.7 8 National 115A . . 92.4 1 .7 20 .5 74 87 M-high 11.9 4.6 11 Illinois 1570 (Station) . . 92.2 2 .5 23 .0 76 85 High 10.6 4.4 12 Doubet D-ll . . 92 . 1 7 .3 19 .9 74 92 Medium 11.3 4.9 18 Illinois 1515 (Station) . . 91.7 1 .8 20 .6 77 82 M-high 10.7 4.6 14 P.A.G. 392 . . 90.6 1 .2 19 .6 75 88 Medium 10.1 4.5 IS Ainsworth X-13-3 . . 90.2 4 .3 20 .9 72 87 M-high 10.6 4.3 Hi Kelly K-374 . . 89.0 2 .4 19 .6 68 91 Medium 10.3 4.9 17 Pioneer 304 . . 88.9 2 .4 22 .8 67 87 M-high 10.0 4.9 18 Bear OK-31 . . 88.6 2 .0 20 .0 74 90 Medium 11.1 4.9 18 Funk G-93 . . 88.6 1 .2 20 .1 72 88 M-high 10.9 4.8 20 P.A.G. 164 . . 88.2 2 .2 20 .7 73 84 Medium 9.8 4.5 20 U.S. 13 (Station) . . 88.2 2 .7 21 .1 71 83 High 10.1 4.7 22 Illinois 1508 (Station) . . 88.0 3 .8 19 .1 69 85 Medium 9.8 4.4 23 Illinois 1091 (Mountjoy) . . 86 . 5 1 .3 19 .7 67 79 Medium 9.7 4.4 24 Pioneer 313B . . 86.2 2 .4 21 .7 69 88 Medium 10.3 4.5 25 Null N-49 . . 85.9 2 .0 19 .7 69 8* M-high 10.3 4.4 26 Bear OK-50 . . 85 . 7 4 .3 20 .8 69 85 Medium 10.2 4.1 27 Keystone-38 . . 85 . 1 2 .2 20 .8 74 85 Medium 10.6 4.3 28 Frey 692 . . 84 . 9 1 .5 20 .1 70 78 Medium 9.6 4.7 2!) Crow 608 . . 84.6 2 .5 20 .4 54 72 Low 10.2 4.6 30 Frey 644 . . 84.4 4 .3 20 .3 70 86 Medium 10.1 4.8 30 Illinois 1248 (Seeber) . . 84.4 4 .8 19 .9 68 83 Medium 10.5 4.7 32 FunkG-95 . . 84.3 4 .9 20 .7 73 88 Medium 10.3 4.7 83 Stiegelmeier S-340 . . 84.2 2 .2 20 ,8 70 78 Medium 9.9 4.4 84 Kelly K-77 . . 84.1 2 .4 20 ,4 67 83 Medium 10.3 4.4 M Bear OK-88T .. 83.8 1, ,5 20 ,7 63 83 Medium 11.0 4.8 35 Pfister 187 Hybrid LF 789. .. . . 83.8 1 .3 19 .3 70 84 Medium 9.9 4.4 87 Morton M-30 . . 83 . 6 3 .1 20 .2 70 86 Medium 9.6 4.6 88 lowealth AQ . . 83 . 5 1 8 19 69 92 M-low 10.3 4.5 8i Lowe 514 . . 83 . 1 5 .0 19 .1 68 78 Medium 10.3 4.8 40 Morton M-12 . . 82 . 8 5 .6 20 ,5 72 85 M-high 10.3 4.6 41 Ainsworth X-201 , . 82 . 7 1, 7 21, 1 65 82 High 10.9 4.6 (Table is concluded on next page) 1950] ILLINOIS TESTS OF CORN HYBRIDS: 1949 489 Table 12. EAST NORTH-CENTRAL ILLINOIS: Sheldon concluded Rank Entry Total Damaged Mois- corn in ture in vield shelled rain at sample harvest Erect plants Stand Height of ear Protein Oil 1949 RESULTS concluded bu. perct. perct. perct. perct. perct. perct. 41 Appl A-1766 . . 82 .T 1 A 21.6 71 80 High 10.3 4.7 41 Bear Tapicorn 4 . . 82 .7 1 .1 20.1 70 84 Medium 9.8 4.8 41 Producers 940 . . 82 .7 1, ,0 21.0 74 82 High 10.3 5.0 45 Pfister 187 Hybrid LF 456. .. . . 82 .4 1, 5 19.8 65 82 Medium 9.8 4.1 46 Lowe 580 . . 82 .2 1, .4 20.6 67 84 Medium 10.4 4.3 47 Illinois 21 (Pfeifer) . . 82 .1 8 ,2 18.8 69 82 Medium 10.1 4.5 48 DeKalb 800A . . 82 .0 1, ,2 20.8 72 80 M-high 10.6 4.7 49 Sibley 777 . . 81 .8 8, 1 20.6 69 81 Medium 9.7 4.1 40 P.A.G. 173 . . 81 .8 2, 5 20.1 74 75 Medium 10.5 4.6 51 Super-Crost S-12 . . 81 .1 1, 3 18.5 70 82 M-low 10.1 4.5 62 DeKalb 627 . . 79 .9 1, 5 20.5 59 89 Low 10.4 4.4 52 P.A.G. 175 . 79 ,9 4, 21.0 72 86 M-high 10.7 4.3 B2 Sieben S-440 . . 79 ,9 2, 1 18.3 67 83 M-low 10.0 4.2 56 Pioneer 332 . . 79 .7 6, 3 23.1 67 87 M-high 10.1 4.1 66 Producers 900 . . 79 .6 7, ,5 19.4 73 82 M-low 10.8 4.8 57 Illinois 1337 (Station) . . 79 .5 1, .2 20.4 65 82 Medium 10.5 4.5 58 Lowe 523 . . 79 ,2 7 ,0 21.1 66 88 Medium 10.2 4.6 59 Frey 425 . . 78.6 8 8 21.7 64 84 Low 9.9 4.6 60 Doubet D-3W . . 77 ,4 4 .1 20.7 72 81 Low 9.7 4.6 (il Farmcraft FC-69 . . 77 ,1 4, 3 21.7 59 72 Medium 10.2 4.5 62 Super-Crost FD-6 . . 76 ,6 1, 3 18.8 69 79 Medium 10.3 4.4 m Hulting 101 . . 76 ,2 1, 3 19.2 68 82 Medium 10.6 4.6 64 Moews 520 . 76 ,1 a, 1 20.1 76 80 Medium 10.5 4.6 66 Crow 633 . 75 ,8 4, 6 20.0 69 73 Medium 10.2 4.7 66 Crow 660 . . 75 ,7 2 ,1 19.6 69 76 Medium 10.2 4.4 66 Farmcraft PC-63 . . 75 ,7 2 20.3 60 80 M-low 10.2 4.2 68 Sieben S-440E . . 75 ,2 4 .2 19.4 65 88 Low 9.9 4.8 69 Holmes Utility 39H . . 75 .1 2 ,5 22.5 70 77 M-high 9.3 4.2 69 Super-Crost 746 , . 75 ,1 8, 21.7 66 81 Medium 10.7 4.3 71 Pioneer 300 . . 74 .7 2 .6 21.5 61 81 M-high 10.4 4.4 72 Pfister 187 Hybrid LF 123. .. . . 74 ,4 2, 6 21.7 72 85 Medium 10.8 4.2 73 Illinois 972 (Appl) . . 73 ,4 1 ,1 20.4 62 66 Medium 9.7 4.1 74 Pike 520 . . 72 . 1. 23.2 67 76 Medium 10.3 4.2 75 Illinois 273-1 (Tiemann) . . 72 ,4 4.4 19.4 68 83 Medium 11.0 4.9 76 Hulting 380 . . 71 ,9 4. 1 20.0 70 83 Medium 9.3 4.4 77 Keystone 41 . . 71 ,5 8, 5 20.5 70 84 Low 10.7 4.7 78 Producers 730 ,. 71 ,8 8. 5 20.2 69 68 M-high 10.4 4.4 re Moews 14 . 69 ,6 8, 18.4 63 84 Low 9.9 4.3 80 Moews 18 . . 69 ,0 1 19.9 73 74 Medium 9.8 4.5 81 FunkG-211 , . 63 ,8 4, 2 19.9 59 85 Low 10.1 4.4 Average of all entries . . 82 .8 a, .9 20.4 69 83 10.3 4.5 Average of Illinois 21 (Mountjoy) 1947; Illinois 21 (Holder, Mountjoy, Station) 1948; Illinois 21 (Station) 1949. b Average of U.S. 13 (Morton, Kelly, Pfeifer) 1947; U.S. 13 (Morton, Appl, Sibley, Station) 1948; U.S. 13 (Station) 1949. 490 BULLETIN No. 536 [February, Table 13. SOUTH-CENTRAL ILLINOIS: Sullivan Rank Entry Total Damaged Mois- corn in ture in Erect shelled grain at plants sample harvest yield Stand Height of ear Protein Oil SUMMARY 1947-1949: Less than 3.9 bushels difference between total yields of any two entries is not significant. bu. perct. perct. perct. perct. perct. perct. 1 Producers 900 .. . 91 .6 2, ,7 18. 8 83 Medium .... ... 2 P.A.G. 173 . .. 90 .6 4 .5 19, 2 78 M-high 8 P.A.G. 392 .. . 90 .4 2 .2 18 6 90 Medium .... ... 3 U.S. 13 . . . 90 ,4 2 .1 19, 83 M-high .... ... 6 Ainsworth X-13-3 ... 90 ,2 2 ,9 19, 5 86 Medium .... ... *> Illinois 201 ... 88 .9 2 .1 18, 7 82 ; Medium .... ... 7 Illinois 21 . . . 88 .7 2 .7 19 2 86 Medium .... ... 8 Keystone 45 .. . 88 .2 a .6 21, 4 79 High 9 Lowe 523 . .. 87 .0 i .0 18. 9 85 Medium .... ... 10 DeKalb875 ... 86 ,1 2 .2 20 8 84 Medium .... 11 Canterbury 404 .. . 86 .0 1 .8 19 5 85 Medium .... ... 12 Whisnand 804 . .. 85 .4 ,2 18 6 83 Medium .... ... 13 P.A.G. 170 . .. 85 ,2 3, 1 20, 84 M-high .... 14 Kelly K-88 . . . 84 .9 1 .5 18, 5 84' Medium .... ... 16 National 125-1 ... 84 .8 3 ,3 18 4 88 Medium .... ... 18 Embro36 . .. 84 .2 3 .6 19, 1 85 Medium .... ... 17 Ainsworth X-14A .. . 83 6 2. 2 22. 2 80 M-high .... ... 18 Crow 608 . . . 82 .6 1 .8 18, 81 Medium .... ... 19 Crow 805 .. . 82 .5 1 .3 19, 4 81 Medium .... ... Average of all entries ... 86 .9 2 .3 19, 4 84 1949 RESULTS: Less than 6.5 bushels difference between total yields of any two entries is not significant. 1 Illinois 2216(W) (Station) . 99.8 2. 5 20 .5 60 94 High 9.1 4.0 2 Doubet D-41 . . 99 . 3 2. 8 18. 9 82 94 M-high 8.5 4.8 3 Whisnand 804D .. 96.4 4. 1 17, 1 63 97 Medium 8.9 4.7 4 U.S. 13 (Stone) . . 93 . 6 2. 7 18 ,8 73 95 M-high 8.7 4.4 5 U.S. 13 (Wilson) . . 93.4 3. 8 18, 4 57 92 M-high 8.8 4.5 fl Funk G-98 . . 93 . 1 1. 2 19, 8 59 97 M-high 9.0 4.6 7 U.S. 13 (Station) .. 93.0 4. 7 16 8 76 98 M-high 8.6 4.1 8 FunkG-79 . . 92 . 5 2. 3 19 73 93 M-high 9.1 4.6 8 Illinois 1570 (Station) . . 92 . 5 2. 9 19 ,1 71 96 M-high 9.2 4.6 10 P.A.G. 392 . . 92 . 1 4. 8 17 ,7 82 96 Medium 8.9 4.5 11 BearOK-72 .. 91.3 9 18, 2 67 90 Medium 9.7 4.8 12 P.A.G. 170 .. 91.1 4. 8 18 ,4 78 93 M-high 8.5 4.1 13 Castle Ohio C-92 .. 90.8 3. 7 18 3 71 94 Medium 9.1 4.8 14 Illinois 21 (Stone) .. 90.7 3. 7 18 .2 77 93 Medium 9.1 4.7 16 Stiegelmeier S-370 .. 90.6 3. 4 17 9 72 91 M-high 9.5 4.1 18 Illinois 201 (Mountjoy) . . 90 . 2 3. 7 17, 8 61 94 Medium 8.9 4.7 17 FunkG-512(W) .. 90.1 6 21 4 57 94 High 9.1 4.0 18 Null N-77 .. 90.0 1. Q 17 5 68 89 M-high 9.1 4.4 19 Crow "Deep Root" . . 89 . 5 2. 9 17 9 89 93 Medium 8.9 5.0 20 Bear OK-66 .. 89.4 4. 3 18 .6 73 94 Medium 8.9 4.6 21 Illinois 21 (Powers) . . 89 . 2 5. 6 19 72 93 Medium 9.4 4.7 21 Keystone 45 .. 89.2 5. 6 19 .9 67 95 High 9.4 5.3 28 Illinois 1337 (Pfeifer) . 89.1 4. 17 ,8 76 93 Medium 9.6 4.6 24 P.A.G. 173 .. 88.4 4. 7 18 4 68 95 Medium 9.1 4.3 26 Pioneer 313A .. 88.2 4. 5 18 8 74 96 Medium 8.8 5.0 28 Crow 805 .. 88.1 2. 18 9 68 90 Medium 9.5 4.7 27 Bear Tapicorn 4 .. 87.6 2. 7 16 ,7 71 92 M-low 9.2 4.5 28 Lowe 640 .. 87.4 2. 6 17 ,0 64 93 M-low 9.6 4.6 2S P.A.G. 164 . . 87.4 3. o 19 86 95 Medium 8.5 4.7 30 Canterbury 420 . . 87 . 1 2. 8 18 ,5 74 93 Medium 8.9 4.8 30 Kelly K-88 .. 87.1 3. 7 17, 1 75 89 M-high 8.9 4.8 30 Pioneer 332 . . 87 . 1 1 . 1 19 6 75 89 M-high 8.8 4.4 33 Ainsworth X-13-3 .. 86.8 6. 1 18 .8 79 94 Medium 9.1 4.3 33 Illinois 972A-1 (Stone) .. 86.8 3. 1 17 .5 59 88 Medium 9.1 4.5 36 Ainsworth X-14A .. 86.6 2. 7 19 .5 63 94 High 9.8 5.1 3"> Pioneer 313B .. 86.6 1. 4 18 .8 68 94 M-low 8.9 4.7 87 Morton M-12 .. 86.3 . 8 17 .9 74 92 Medium 9.1 4.5 38 Illinois 1337 (Station) .. 86.1 3. 4 17 .2 70 94 Low 8.7 4.5 38 Appl A-130 . . 86 . 1 1. 5 17 .3 80 90 Medium 9.6 4.6 10 Ainsworth X-21 . . 85 . 9 2. 6 18 .7 74 92 Medium 9.1 4.6 11 Embro36 .. 85.6 2. 9 19 .5 78 95 Medium 9.4 4.7 (Table is concluded on next page) 1950] ILLINOIS TESTS OF CORN HYBRIDS: 1949 491 Table 13. SOUTH-CENTRAL ILLINOIS: Sullivan concluded Rank Entry T. , i Damaged Mois- acre corn in ture in vield sne lled gram at * sample harvest Erect plants Stand Height of ear Protein Oil 1949 RESULTS concluded 42 Pfister 187 Hybrid LF 456. .. bu. .. 85.3 perct. 1.1 perct. 17.0 perct. 71 perct. 87 M-high perct. 8.8 perct. 4.0 43 Whisnand 804 . . 85. ,0 .3 18.0 71 91 Medium 9.4 4.6 44 DeKalb 875 .. 84 .7 1 .9 18.9 80 88 Medium 10.1 4.3 44 Moews 830 .. 84 ,7 2 .0 18.0 50 90 M-high 9.4 4.4 44 U.S. 13 (Pfeifer) .. 84 ,7 3 .0 18.3 75 93 M-high 8.9 4.2 47 Crow 660 .. 84 ,6 .4 18.7 72 95 Medium 8.9 4.8 47 Morton M-30 .. 84 ,6 4 .4 18.2 76 93 M-low 8.7 4.0 41) Canterbury 404 .. 84 ,5 1 .7 18.6 75 91 Medium 9.4 4.7 49 National 125-1 .. 84 ,5 i .4 16.7 83 92 Medium 8.9 4/5 51 Illinois 1515 (Station) .. 84 ,3 8 .2 20.1 81 98 M-high 9.1 4.7 52 National 125 . . 84 ,1 1 .0 19.4 81 95 Medium 8.4 4.6 53 Crow 608 . . 83 9 8 .1 17.4 71 90 Medium 8.9 4.6 58 Producers 940 .. 83 ,9 .7 18.3 84 96 Medium 8.9 4.4 55 Illinois 201 (Station) . . 83 ,6 .8 17.9 83 91 Low 9.1 4.2 56 Illinois 206 (Pfeifer) .. 83 2 2 .0 19.3 72 92 M-high 9.4 4.5 56 Producers 1050 . . 83 ,2 3 .0 19.4 54 93 M-high 9.9 4.4 58 DeKalb 847 .. 82, ,7 3 5 17.8 85 97 Medium 9.9 4.6 58 Producers 900 .. 82 ,7 3 .8 17.4 69 93 Medium 9.1 4.7 80 Lowe 523 .. 82. ,4 1 ,1 18.8 71 88 Medium 9.6 4.5 61 lowealth 25 . . 82 ,2 2 .3 17.0 60 88 M-high 9.3 4.6 62 Funk G-99 .. 82. 2 ,9 19.6 65 86 M-high 9.8 4.5 62 Kelly K-77 . . 82 ,0 1 ,2 18.3 77 90 M-high 8.6 4.7 62 Super-Crost 708 (W) . . 82 .0 2 .7 20.9 54 83 High 10.1 3.8 65 Illinois 972-1 (Pfeifer) . . 81 ,6 2 .1 18.9 70 95 M-high 8.4 4.4 66 Producers 730 . . 81 3 1 .9 19.0 62 78 High 9.2 4.4 67 Holmes Utility 39C . . 80 .4 4 .3 20.1 84 87 M-high 8.9 4.4 88 DeKalb 82 .. 80 ,1 2 .1 16.5 81 88 Low 9.5 4.7 69 Doubet D-ll .. 79 ,1 1 .8 17.1 84 91 Low 9.1 4.8 6!) Pioneer 300 .. 79 ,1 2 .7 19.3 78 95 M-high 9.0 4.3 71 Bo-Jac28 . . 78, 8 8. 2 18.2 86 88 Medium 9.4 4.9 72 DeKalb 825 . . 77 ,2 2 .4 18.3 72 92 M-low 9.4 4.2 78 lowealth 25A .. 77 ,0 ,4 18.5 87 90 Medium 9.8 4.7 74 Kelly K-44 . . 76, 4 3 fi 17.9 83 93 Low 9.4 4.7 75 Pfister 187 Hybrid LF 789. .. . . 74 .8 4 3 19.1 78 85 Medium 9.4 4.5 7fl Moews 18 . . 74, 6 4 ,1 17.9 75 93 M-low 9.2 4.2 77 Ponder P-814 . . 73 9 1 5 18.7 58 79 High 9.9 5.1 78 Keystone 41 . . 73 .8 4 .9 18.0 79 92 Low 10.1 4.6 79 Pfister 187 Hybrid LF 123. .. . . 73 ,0 8 1 16.9 73 87 M-low 9.8 4.1 80 Illinois 200 (Butzow) . . 64 ,6 4 .2 19.4 74 94 Low 9.9 4.9 81 Lowe 514 .. 57 ,8 4 .3 16.7 73 92 Low 9.5 4.6 Average of all entries .. 85. 1 2, 9 18.4 73 92 9.2 4.5 Average of U.S. 13 (Canterbury, Stone, Mountjoy, Daily, Morton, Pfeifer) 1947; U.S. 13 (Stone, Morton, Daily, Appl, Kelly, Mountjoy, Pfeifer, Canterbury) 1948; U.S. 13 (Pfeifer, Stone, Wilson, Station) 1949. b Average of Illinois 201 (Burrus) 1947; Illinois 201 (Mountjoy, Station) 1948; Illinois 201 (Mount- joy, Station) 1949. Average of Illinois 21 (Stone, Daily) 1947; Illinois 21 (Powers, Daily, Station) 1948; Illinois 21 (Powers, Stone) 1949. 492 BULLETIN No. 536 [February, Table 14. SOUTHERN ILLINOIS: Alhambra Rank Entry Total Damaged Mois- c e corn m ture in Erect vield sne 'l e d grain at plants sample harvest Stand Height of ear Protein Oil SUMMARY 1946, 1947, a 1949: Less than 6.5 bushels difference between total yields of any two entries is not significant. bu. perct. perct. perct. perct. perct. perct. 1 Whisnand 917(W) ... 63 . 4 1.0 24.9 73 M-high .... ... 2 Doubet D-41 ... 61.9 1.6 23.9 67 M-high .... ... 3 Whisnand 905 (W) ... 58.7 1.1 25.7 64 M-high .... ... 4b Illinois 784 ... 57.4 1.4 25.8 59 M-high .... ... 5 FunkG-80 ... 57.1 4.1 25.9 74 M-high .... ... rt Ainsworth X-14A ... 55.7 1.4 25.0 71 Medium .... ... 7 Illinois 200 ... 55.6 .9 22.4 64 Medium .... ... 8 Pioneer 505 (W) ... 54.7 .9 26.5 66 M-high .... ... 9 Keystone 38 ... 54 . 6 1.0 22.6 68 Medium .... ... 10 d U.S. 13 ... 54 . 1 1.7 23.0 71 Medium .... ... 11 Keystone 45 ... 53.8 1.0 25.0 72 Medium .... ... 12 Pioneer 332 ... 52 . 7 1.2 23.4 64 Medium .... ... 13 Super-Crost 840 ... 52.0 1.3 22.8 72 Medium .... ... 14 Pioneer 313B ... 51.9 1.2 23.2 69. Medium .... ... 15 Crow 607 ... 51.1 2.3 23.8 65 Medium .... ... 16 Pioneer 300 ... 50.6 1.1 21.4 66 Medium .... ... 17 Lowe 840 ... 49.6 3.3 26.0 64 Medium .... ... 18 National 125 ... 49.4 4.9 22.3 59 Medium .... ... 19 Embro49 ... 48.3 1.6 24.3 62 Medium .... ... 20 National 129 . .. 47.8 1.0 21.8 68 M-low .... 54.0 1.7 24.0 67 1949 RESULTS: Less than 7.4 bushels difference between total yields of any two entries is not significant. 1 Illinois 2214(W) (Station) . 81. 5 ,7 17.5 72 93 High 8.7 4.4 2 Illinois 784 (Station) . . 77. 2 1, 3 19.8 46 91 High 9.4 4.2 3 Illinois 1459 (Station) .. 75, 9 1, 19.0 54 90 High 10.2 5.5 4 Illinois 152 IB (Station) .. 73 ,2 1, .7 20.2 59 90 High 10.3 4.5 ft- Pioneer 302 .. 73. 2, 17.4 76 88 Medium 9.9 4.8 Whisnand 917(W) . . 72, 8 1 1 17.1 82 85 High 9.2 3.7 7 Illinois 200 (Pfeifer) . . 69. 1, 17.4 62 88 M-high 9.7 4.7 8 Keystone 45 . . 68 ,9 1, ,2 17.8 82 86 M-high 9.6 4.9 9 P.A.G. 620(W) . . 68 ,3 1 .5 17.3 72 86 High 8.9 3.9 9 Pioneer 505(W) .. 68 .8 1 .6 17.8 69 85 High 9.4 4.0 11 Illinois 1540A (Station) .. 68 ,2 2 .0 20.6 36 89 High 10.7 5.0 12 FunkG-80 .. 67 ,9 ,8 18.7 75 83 M-high 9.9 4.9 13 Illinois 200 (Station) . . 67 .3 1 .3 16.9 76 84 M-high 9.5 4.8 14 Producers E441 . . 67 ,0 1 .0 19.5 73 86 High 8.8 4.3 !.-> FunkG-512(W) . . 66 .8 1 .6 17.9 61 79 High 8.1 4.2 1C, Keystone 106(W) .. 66 .8 1 .0 17.9 56 88 High 8.8 4.1 17 Doubet D-41 .. 65 .9 1 .0 16.7 80 80 Medium 9.7 4.6 18 Ainsworth X-14A .. 65 ,7 .6 17.1 68 87 Medium 9.5 4.8 1!) P.A.G. 631(W) .. 65 ,0 ,7 18.8 45 84 High 8.7 4.6 20 Super-Crost 1010S .. 65 ,1 1 .7 18.5 47 86 High 10.4 4.8 21 FunkG-98 . . 64 .0 2 .1 17.3 80 87 M-high 9.3 4.3 22 Producers E445 .. 64 ,8 1, ,5 18.7 56 79 M-high 10.1 4.1 28 Lowe 855(W) . . 64, ,5 1 ,9 18.8 81 88 M-high 8.9 4.3 24 P.A.G. 617(W) .. 64 ,4 1. .0 17.3 62 78 High 9.4 4.1 2.', BearOK-76 .. 63 ,9 .7 17.0 68 77 M-high 9.4 4.4 20 Keystone lll(W) . . 63 .8 1 .6 19.0 69 76 Medium 10.1 4.3 27 Illinois 784 (Haudrich) .. 63 .5 1 .4 19.3 53 88 High 8.9 4.4 28 Morton M-30 . . 63 .3 .7 15.2 91 92 Medium 9.6 4.0 28 Bear OK-77 .. 63 ,3 1 .0 15.8 68 86 M-low 9.4 4.8 :) Producers 1050 .. 63 ,2 .9 17.9 57 82 Medium 9.2 4.3 Hi Super-Crost 1005B .. 62 .8 1 .6 16.6 71 84 Medium 10.7 4.7 82 Producers E409 .. 62 ,8 1 .3 16.5 90 92 M-high 8.9 4.6 88 Appl A-1766 . . 61 .9 1 .3 15.7 77 80 M-high 10.1 4.6 84 Lowe 820 . . 61 .8 1 7 18.4 61 85 Medium 9.9 4.5 86 Corn Belt 60A . . 61 .0 1 7 17.4 57 84 M-low 9.6 4.2 80 Keystone 38 .. 61 .5 1 .0 15.4 86 87 M-low 9.8 4.1 30 Super-Crost 708(W) . . . .. 61 .5 2 .0 17.6 65 79 High 9.4 3.8 38 Embro 155(W) . . 61 .4 1 .4 18.4 70 81 High 9.2 3.8 M U.S. 13 (Lepper) . . 61 .8 I 6 17.3 78 85 Medium 9.8 4.3 K) Corn Belt 70A . . 60 .8 1 .1 14.8 87 81 Medium 9.8 4.3 (Table is concluded on next page) 1950] ILLINOIS TESTS OF CORN HYBRIDS: 1949 493 Table 14. SOUTHERN ILLINOIS: Alhambra concluded Rank Entry Total Damaged Mois- corn in ture in Erect shelled grain at plants sample harvest yield Stand Height of ear Protein Oil 1949 RESULTS concluded bu. perct. perct. perct. perct. perct. perct. 41 Whisnand 834D 60.2 1.4 18.4 68 81 Medium 9.8 4.3 42 Embro49 59.7 1.4 18.3 70 79 High 9.9 4.9 43 National 125 59.0 .7 16.0 76 89 Medium 10.3 4.3 44 U.S. 13 (Haudrich) 58.9 1.7 15.8 77 79 Medium 9.9 4.3 45 Canterbury 420 58.7 1.0 15.2 87 85 Medium 9.9 4.4 45 U.S. 13 (Morton) 58.7 1.5 16.6 78 87 M-low 9.4 3.8 47 Whisnand 905 (W) 58.2 .7 17.5 72 76 High 8.8 4.1 48 Illinois 200 (Haudrich) 57.9 1.4 16.1 64 83 Medium 10.2 4.6 49 Ainsworth X-201 57.6 1.5 14.5 77 82 Medium 10.4 4.5 50 Lowe 840 57.3 3.2 18.4 70 80 Medium 10.9 4.2 51 Ainsworth X-13-3 57.2 1.6 16.3 77 84 Medium 9.7 4.4 52 Canterbury 412 56.9 2.6 16.9 71 83 Medium 9.0 4.0 53 National 129 56.6 1.5 16.6 82 82 M-low 10.4 4.6 54 U.S. 13 (Kelly) 56.2 1.8 17.5 66 83 M-high 9.1 4.2 55 DeKalb875 56.0 1.1 17.3 62 84 Low 10.9 4.2 56 Illinois 1337 (Wilson) 55.8 2.1 16.9 80 87 Medium 9.4 4.2 57 Lowe 523 55.7 1.5 16.3 74 87 Low 8.8 4.1 58 Whisnand 804D 55.3 2.4 15.6 70 85 Medium 10.0 4.6 59 P.A.G. 173 54.8 1.4 15.6 66 79 Medium 9.7 4.3 60 P.A.G. 175 54.7 2.7 15.7 75 85 Medium 9.7 4.0 61 Ainsworth X-21 54.4 1.1 16.5 90 81 Medium 9.2 4.4 62 U.S. 13 (Appl) 54.2 1.8 16.6 88 83 Medium 9.8 4.1 63 Illinois 21 (Haudrich) 53.9 .9 15.3 81 90 M-low 9.7 4.3 64 P.A.G. 3202 53.7 1.6 16.2 72 70 M-low 9.8 4.8 65 lowealth 29A 53.4 1.3 15.6 80 82 Medium 10.2 4.1 66 Crow 607 53.0 1.3 17.0 80 87 Low 9.1 4.5 67 Huey H-48 52.9 1.6 17.3 82 89 Medium 9.2 4.4 68 Pioneer 304 52.4 .8 16.7 70 83 Low 9.9 4.5 69 Canterbury 404 51.8 2.6 15.4 82 82 Medium 10.4 4.3 70 Carlson C-33 51.7 1.5 15.0 67 87 Low 9.8 4.1 71 Pioneer 300 51.6 1.8 15.0 89 85 Medium 10.4 3.6 72 Morton M- 12 50.5 3.8 15.8 81 78 Low 10.6 4.0 73 Pioneer 313B 50.1 1.2 17.5 74 82 M-low 10.0 4.3 74 Super-Crost 840 48.7 1.4 16.7 65 80 Medium 9.5 3.8 75 Canterbury 456 48.0 1.0 15.3 72 80 M-low 9.6 4.1 76 Pioneer 332 47.0 1.5 17.5 83 76 Medium 10.0 3.8 77 Lowe 830 46.3 2.3 14.7 50 81 Low 10.1 4.0 78 Stiegelmeier S-13 46.0 .7 15.2 61 85 Low 9.1 4.0 79 DoubetD-11 43.6 1.1 16.1 82 86 Low 10.6 4.3 80 lowealth 25 43.5 1.8 16.7 74 76 Medium 10.4 4.0 81 Pioneer 313A 43.4 .8 16.2 58 78 M-low 10.6 4.7 Average of all entries 59.8 1.4 17.0 71 84 9.7 4.3 a 1948 data omitted because of crop failure. b Average of Illinois 784 (Pfeifer, Station) 1946; Illinois 784 (Haudrich) 1947; Illinois 784 (Haudrich, Station) 1949. Average of Illinois 200 (Station) 1946; Illinois 200 (Haudrich, Burrus) 1947; Illinois 200 (Haudrich, Pfeifer, Station) 1949. d Average of U.S. 13 (Pfeifer, Station) 1946; U.S. 13 (Canterbury, Haudrich, Kelly, Morgan) 1947; U.S. 13 (Appl, Haudrich, Kelly, Lepper, Morgan) 1949. 494 BULLETIN No. 536 [February, Table 15. EXTREME SOUTHERN ILLINOIS: Dixon Springs Bottomland and Upland Rank Entry Total Damaged Mois- P A corn m ture i n shelled grain at sample harvest yield Erect plants Stand Height of ear Protein Oil SUMMARY, Bottomland, 1947-1949: Less than 4.0 bushels difference between total yields of any two entries is not significant. 'bu Pa ct. peri t. perct. pei ct. perct. perct. 1 Illinois 1459 (Station) .. 68 ,1 1, .8 27. 87 M-high 2 Whisnand 917 (W) .. 66. 4 1, 1 23. 3 87 M-high .... ... 8 P.A.G. 620(W) .. 66 1 ,2 24. 8 82 M-high 4 Doubet D-41 .. 65 .9 1 .8 23. 7 82 Medium .... ... 5 Illinois 2214(W) (Station) .. 65 ,0 1 .2 23. 7 84 Medium .... ... 6 P.A.G. 612(W) .. 64 ,0 1 .0 26. 1 86 M-high .... ... 7 Illinois 2216(W) (Station) .. 61 .4 1 .4 24. 4 91 Medium .... ... 8 Super-Crost 708 (W) .. 60 ,9 1 .0 25. 3 87 M-high .... ... 9 Ainsworth X-14 A .. 60 8 2 .2 22. 6 81 Medium .... ... 10 Pioneer 505(W) .. 60 .5 1 .2 23. 7 90 Medium .... ... 11 P.A.G. 173 .. 59 ,4 1 ,4 19. 85 Medium .... ... 12 Lowe 820 .. 58 ,4 1. .9 21. 9 86 Medium .... ... 13" Illinois 784 .. 58 .1 1 .2 25. 5 65 Medium .... ... 14 Keystone 38 .. 56 .4 1 .0 22. 2 84 M-low 16 Pioneer 304 .. 55 9 1 .2 23. 8 83 Low .... ... 16 Pioneer 332 . . 55 8 3 .1 25. 9 82 Medium .... ... 16 Embro49 .. 55 ,8 1 .2 23. 9 82 Medium .... ... is Lowe 840 .. 55. 3 .7 22. 1 87 Medium .... ... 19 Pioneer 313B .. 53 7 2 ,0 22. 74 M-low .... ... 20 Lowe 830 . . 51. 7 1 1 20. 8 76 M-low .... 21 National 129 . . 48. 4 1 8 27. 5 87 M-low .... ... 59 4 1 4 23. 8 83 1949 RESULTS: Less than 6.2 bushels difference between total yields of any two entries is not significant. 1 Funk G-711A . 92.5 3 20.7 67 90 High 10.1 4. ,5 2 Illinois 1459 (Station) .. 86.1 2 .3 20.3 76 86 High 11.4 5. .2 3 Doubet D-41 . . 79.7 1 .8 20.0 62 91 M-high 9.6 4. 5 4 Illinois 2214 (W) (Station) .. 79.4 1 .6 18.8 73 87 M-high 8.6 4. .8 5 Keystone 106(W) .. 79.0 1 .3 19.6 66 90 High 10.8 4 ,9 6 P.A.G. 620(W) . . 78.7 1 .5 18.9 78 85 High 10.2 4. ,9 7 Lowe 855(W) .. 77.2 1 .4 19.7 74 88 Medium 10.8 4 .5 7 P.A.G. 612(W) . . 77.2 1 .5 17.1 81 89 High 10.6 3 .8 9 Lowe865(W) .. 76.8 1 .5 19.4 73 90 Medium 10.2 4 .> 10 Whisnand 917(W) .. 75.9 2 .3 19.3 83 84 High 10.8 4 ,7 11 Corn Belt 70A .. 75.3 2 ,4 17.3 76 93 Medium 11.2 5 ,0 12 FunkG-705 .. 74.9 1 5 17.3 69 90 High 9.3 4, 4 13 Illinois 1540B (Station) .. 74.0 1 .5 17.2 85 90 M-high 10.8 5 2 14 FunkG-779(W) .. 72.4 4 .0 18.5 48 86 Medium 11.4 5 1 16 Bear OK-90 .. 71.9 2 1 16.9 79 84 Medium 10.6 6. 2 it; Producers E409 .. 71.7 1 .0 18.0 82 94 M-low 11.2 4 4 17 P.A.G. 617(W) .. 71.3 2 .9 18.0 76 80 High 9.9 4, a 18 Keystone lll(W) .. 71.2 1 .0 19.3 58 82 Medium 10.2 4 6 19 Lowe 820 .. 70.9 2 .2 18.7 81 86 High 9.8 5. 5 I'.i Super-Crost 708 (W) .. 70.9 1 .4 18.7 78 81 High 10.8 4. fi 19 U.S. 13 (Station) .. 70.9 1 .0 18.2 72 90 Medium 9.8 4 2 22 Funk G-145 .. 70.4 2 .4 18.7 48 78 Medium 10.2 4 8 23 Illinois 1521B (Station) .. 70.0 1 .5 20.7 89 90 M-high 10.6 4 5 23 Super-Crost 1005B .. 70.0 3 .4 18.5 67 84 M-high 11.4 o (1 :>:> Whisnand 905(W) .. 69.9 1 .0 19.2 74 77 M-high 10.1 4 4 28 lowealth TX .. 69.2 1 .4 21.0 54 84 High 9.6 4 7 27 Ainsworth X-14A .. 69.1 1 .8 17.2 67 88 Medium 9.7 4 8 L'7 Super-Crost 1010S . . 69 . 1 1 .7 20.6 71 85 Medium 10.1 O. 1 29 Pioneer 505(W) .. 68.9 2 .2 18.5 88 83 High 8.6 4 3 30 Illinois 2216(W) (Station) .. 68.7 1 ,8 18.5 85 77 M-high 10.9 4. 7 3] Illinois 200 (Station) .. 68.4 8 .3 17.6 63 89 M-low 10.4 4 5 S3 Ainsworth X-21 .. 68.3 2 ,3 17.2 74 90 M-low 10.9 4 9 83 Pioneer 302 .. 68.1 1 .7 18.7 73 85 Medium 11.0 4 5 84 Illinois 784 (Station) .. 67.8 1 ,4 18.8 35 84 High 12.2 4. 8 86 Lowe 840 .. 66.4 1 .6 18.1 80 84 Medium 11.9 4. 4 36 P.A.G. 173.... .. 65.9 1 9 14.7 71 82 Medium 11.6 4 6 87 Embro 49 .. 65.8 2 4 18.7 68 89 M-high 10.2 o. 1 88 Whisnand 834D .. 64.9 2 1 16.5 58 77 Medium 11.1 4. o 89 Keystone 38 . . 63 . 5 1 .8 18.3 67 90 M-low 10.5 4 6 (Table is concluded on next page) 1950} ILLINOIS TESTS OF CORN HYBRIDS: 1949 495 Table 15. EXTREME SOUTHERN ILLINOIS: Dixon Springs concluded Rank Entry Total Damaged Mois- aore corn in ture in v'eld shewed grain at sample harvest 1 Erect plants Stand Height of ear Protein Oil 1949 RESULTS concluded 40 41 42 43 43 43 46 4(1 48 49 50 51 52 53 54 55 56 57 58 59 60 lowealth 29A bu 63 3 ,1 8 3 3 3 2 2 ,8 8 2 f, perct. 2.1 2.9 2.3 1.3 2.5 1.1 2.6 2.4 2.2 1.9 1.5 2.9 perct. 16.9 19.0 19.0 16.4 20.0 19.7 16.8 16.3 20.7 17.2 17.2 19.0 17.6 18.6 16.3 18.7 16.2 16.3 18.1 18.8 20.3 18.4 perct. 81 68 43 80 63 73 69 56 52 79 63 64 67 78 49 80 50 70 77 43 72 69 perct. 78 88 87 88 80 85 85 90 84 85 84 85 64 87 83 83 86 88 76 87 94 85 M-low Medium High Low Medium M-low Medium Low M-high Medium M-low Low Low M-low Low Low M-low Low Low M-low Low perct. 10.7 10.7 10.2 11.4 10.6 10.5 10.2 11.9 10.2 11.8 10.5 9.9 10.9 11.7 9.4 9.9 10.6 10.2 10.8 10.0 10.1 10.5 perct. 5.1 4.8 4.7 4.5 4.5 5.3 4.9 5.1 4.3 5.1 4.8 4.8 5.3 5.2 4.5 4.2 4.6 4.3 4.9 4.2 4.4 4.7 Producers 1050. . . 63. Pfeifer A-243 62 Bear OK-40B . . . . 62. Pioneer 332. . ... 62 , 62 Illinois 200 (Haudrich) 62 Lowe 640 62 Producers E441 61 Ainsworth X-201 . . . 61 lowealth 25 60 Pioneer 304 . . . 58. P.A.G. 3202 ... 58 1 8 5 4 3 3 ,1 .9 ,7 .6 1.9 2.0 1.5 1.4 1.5 2.2 3.2 3.6 2.4 2.0 National 129. 57 Stiegelmeier S-13 ... 57 Ainsworth X-13-3 57 Lowe 830. . 57. Pioneer 313A 56 Super-Crost FD-8 52 Pioneer 313B ... 51 Funk G-783(W) 45 67 SUMMARY, Upland, 1947-1949: Less than 5.0 bushels difference between total yields of any two entries is not significant. 1 Keystone 106(W) . . . 55.4 1.2 20.4 86 Medium .... ... 2 Illinois 2216(W) (Station) .. 51.7 2.5 21.9 91 M-high .... 3 Lowe 855(W) .. 50.7 1.3 21.3 85 Medium .... ... 4 Illinois 2214(W) (Station) . . 49 . 6 1.1 22.6 81 M-high .... 5 Whisnand 905(W) . . 49.0 4.6 20.9 80 Medium .... ... 6 P.A.G. 612(W) . . 48.9 1.4 19.0 81 M-high .... ... Average of all entries .. 50.9 2.0 21.0 84 1949 RESULTS: Less than 7.0 bushels difference between total yields of any two entries is not significant. 1 Keystone 106(W). . . . 77 9 1.6 16 9 88 86 Medium 10.3 4.4 2 Lowe 855(W) .. 68 2.6 21 7 86 88 Medium 9.2 4.6 8 Illinois 2214(W) (Station) .. 67 ,6 1.6 20 ,3 84 . 85 High 9.8 4.3 4 Funk G-711A . . 67 8.1 24. 7 69 83 High 10.1 5.3 5 P.A.G. 612(W) .. 66 ,1 2.5 19 9 79 85 High 10.0 4.7 6 Illinois 2216(W) (Station) .... .. 62 3 4.3 21 6 92 78 High 9.8 4.2 7 Illinois 200 (Station) . . 60 5 1.3 19 o 76 86 M-low 10.6 4.9 8 Super-Crost 707(W)-1 . . 60 2 1.5 20 8 71 81 High 9.9 3.6 9 Whisnand 905(W) . . 57 ,8 1.8 20 .8 82 75 Medium 9.6 4.3 10 P.A.G. 173 .. 56 ,1 3.0 17 7 90 90 M-low 10.4 4.7 11 lowealth 29A . . 55 2 1.3 16 ,9 86 83 High 10.6 4.6 Average of all entries . . 63. 5 2.7 20 1 82 84 10.0 4.5 Average of Illinois 784 (Station) 1947, Illinois 784 (Station) and (Haudrich) 1948, and Illinois 784 (Station) 1949. 496 BULLETIN No. 536 [February, SOIL ADAPTATION TEST For the past four years six single-cross and three double-cross hybrids have been tested at Urbana for their adaptation to soils differ- ing in fertility level. The four-year average and the 1949 yields are given in Table 16. Soils. The two areas used for the tests are on the Agronomy south farm and differ in productivity as a result of long-continued use of different cropping systems. In the Southwest rotation a high state of productivity has been maintained by a systematic rotation of corn, oats, clover hay, and wheat with a red-clover catch crop. The South- Central area has been depleted of fertility by a rotation of corn, corn, corn, and soybeans. Both fields have received manure and phosphate. The predominating soil type on both fields is Sidell silt loam. Season. The 1949 growing season at Urbana was very favorable. Planting and harvesting were carried out at the normal times. Rain- fall was well distributed and temperatures were neither excessively high nor low. The corn-growing seasons of 1946, 1948, and 1949 were very favorable. The 1947 season was not favorable for maximum production. 1949 results. The average yield of all hybrids tested in 1949 was about the same as the average yield in 1946. It was lower than 1948 but much higher than 1947. The three single-cross hybrids Hy X L317, HyXO7, and WF9XHy and the two double crosses Illinois 972-1 and Illinois 246 maintained their top rank in yields on both fertility levels, as in previous years. As in the past, early-maturing hybrids were low-yielding. This points to the desirability of growing full- season adapted hybrids. Four-year averages. The rank of the hybrids in the four-year summary does not differ significantly from their rank in each of the four years. The single crosses Hy X L317 and Hy X 07 and the double crosses 972-1 and 246 stand at the top on both levels of fertility. 1950} ILLINOIS TESTS OF CORN HYBRIDS: 1949 497 Table 16. SOIL ADAPTATION TEST: Central Illinois, Urbana Rank Entry Total acre yield Erect plants Rating for Erect plants Total yield Highly productive soil a 1946-1949 (rotation: corn, oats, clover, wheat and red clover): Less than 3.0 bushels difference between total yields of any two entries is not significant. 1 Hy X L317. bu. 126.0 perct. 79 perct. 94 perct.. 110 2 Hy X O7 122.4 86 102 107 ^ Illinois 246 121.3 76 90 106 i Illinois 972-1 . . 119.8 85 101 105 WF9 X Hy 118.7 91 108 104 fi WF9 X 38-11 112.9 93 111 99 7 Illinois 751 106.8 80 95 94 8 WF9 X M-14 106.1 87 104 93 q 5120 X Hy 94.2 82 98 82 114.2 84 Medium productive soil b 1946-1949 (rotation: corn, corn, corn, soybeans): than 2.6 bushels difference between total yields of any two entries is not significant. Less 1 Hy X O7. . 71.9 92 106 115 9 Hy X L317 66 6 80 92 107 3 Illinois 972-1 . 66.2 86 99 106 4 Illinois 246 66.0 77 89 106 5 WF9 X Hy 65 5 94 108 105 6 WF9 X M-14 61.9 90 103 99 7 Illinois 751 60.1 87 100 96 8 WF9 X 38-11 56 3 88 101 90 9 5120 X Hy. . . 47.0 85 98 75 Average. . . . 62.4 87 Highly productive soil" 1949 (rotation: corn, oats, clover, wheat and red clover): Less than 8.2 bushels difference between total yields of any two entries is not significant. 1 HyXL317... 141.5 77 95 117 2 Illinois 246 135.0 75 93 112 3 WF9 X Hy 131.4 88 109 109 4 Hy X O7 120.1 69 85 100 5 Illinois 972-1 117.5 81 100 97 6 WF9 x 38-11 115.2 88 109 95 7 WF9 X M-14 113.0 92 114 94 8 Illinois 751 112.9 84 104 94 9 5120 X Hy 99.3 74 91 82 Average 120.7 81 Medium productive soil b 1949 (rotation: corn, corn, corn, soybeans): Less than 5.8 bushels difference between total yields of any two entries is not significant. 1 Hy X O7.. . 73.8 90 105 116 2 Hy X L317 73.3 74 86 115 3 Illinois 246 71.4 76 88 112 4 Illinois 972-1 70.3 92 107 110 5 WF9 X M-14 65.9 94 109 103 6 WF9 X Hy 65.6 88 102 103 7 Illinois 751 63 .0 88 102 99 8 WF9 X 38-11 51.8 88 102 81 9 5120 X Hy 37.8 80 93 59 Average 63.7 86 "Highly productive soil: mostly Sidell silt loam, slightly rolling phase; 1946-1949 (Southwest rota- tion); 1949 (S100, Southwest rotation). b Medium productive soil: mostly Sidell silt loam, slightly rolling phase; 1946-1949 (South -Central rotation); 1949 (S700, South-Central rotation). 498 BULLETIN No. 536 [February, SUMMARY In 1949 three hundred and sixteen hybrids were grown on seven fields in Illinois. For the fourth year six single-cross and three double- cross hybrids were grown at Urbana on two fields differing in pro- ductivity. Planting dates ranged from May 16 to June 2. Growing conditions were generally good at all locations. Results of the tests were briefly as follows: 1949 yields. The Galesburg field in west north-central Illinois had the highest yield, 88.6 bushels an acre. Average yields per acre on the other test fields were: Sullivan, 85.1 bushels; Mundelein, 85.1 bushels; Sheldon, 82.8 bushels; Dixon Springs bottomland, 67.6 bush- els; Dixon Springs upland, 63.5 bushels; Alhambra, 59.8 bushels; and DeKalb, 58.5 bushels. The average yield of all hybrids tested was 74.8 bushels. The average yield at four locations in central and northern Illinois (De- Kalb, Galesburg, Sheldon, and Sullivan) was 19 bushels, or 24 per- cent less than the average yields at the same locations in 1948. Three-year summaries, 1947-1949. The highest-yielding hybrids in the three-year summaries are as follows: Northern Illinois Pioneer 349, P.A.G. 299, Keystone 44, Illinois 101, Lowe 52; West North-Central Pioneer 313B, Schwenk S-24, Ainsworth X-21, Pi- oneer 336, U.S. 13; East North-Central Keystone 38, Producers 940, Illinois 21, P.A.G. 164, U.S. 13; South Central Producers 900, P.A.G. 173, P.A.G. 392, U.S. 13, Ainsworth X-13-3; Southern - Whisnand 917(W), Doubet D-41, Whisnand 905(W), Illinois 784, Funk G-80; Extreme Southern, bottomland Illinois 1459 (Sta- tion), Whisnand 917(W), P.A.G. 620(W), Doubet D-41, Illinois 2214(W); Extreme Southern, upland Keystone 106(W), Illinois 2216(W), Lowe 855(W). Certain hybrids which were top performers in the 1947 three-year summaries do not appear in the present summary tables. These hybrids are listed in Bulletin 531 (1948 report) as Proven Hybrids. Lodging. Lodging was extensive in all fields except DeKalb. Wind storms occurring at Sheldon in late summer and at Galesburg just prior to harvest did great damage. Corn borers and stalk rots were the cause of large numbers of broken plants at Mundelein. Galesburg, Sheldon, and Sullivan. 1950] ILLINOIS TESTS OF CORN HYBRIDS: 1949 499 Corn borer damage. The European corn borer was responsible for greater damage in these tests and over the state than at any time since this insect became established in Illinois. Estimated loss due to this insect was 65 million dollars in 1949. Corn borer damage was of importance on four test fields Gales- burg, Sheldon, DeKalb, and Sullivan. The average percent of plants broken below the ear because of corn borer damage was: Galesburg 28.6; Sheldon 16.3; DeKalb 10.5; and Sullivan 4.6. The estimated percent of ears left in the field after harvest because of borer damage was: Galesburg 9.0; Sheldon 5.0; DeKalb 3.2; and Sullivan 2.3. Disease damage. Stewart's disease, Helminthosporium blight, and several kinds of stalk rot were unusually prevalent this year. The worst damage occurred in south-central Illinois. The combined dam- age from these diseases for the state as a whole was estimated at 16.5 percent. Yields, however, were not too bad because, except for corn borers, growing conditions in most parts of the state were excellent. Protein and oil content. For the second year a sample of each entry from each field was analyzed for protein and oil. On a moisture- free basis, the average protein content for all entries was 9.9 percent, and the average oil content was 4.5. There was no correlation between total yield and protein content nor between total yield and oil content. The average difference be- tween the average percentages of protein and oil for the entries on each field was 2.4 points in protein and 1.4 points in oil. Effect of soil-productivity level. For the fourth year six single- and three double-cross hybrids were tested at Urbana on two fields differing in productivity. The yield of the lowest-yielding hybrid in 1949 on the medium-productive soil was 37.8 bushels an acre. The yield of the highest-yielding hybrid on the highly-productive soil was 141.5 bushels an acre, an increase of 103.7 bushels or 274 percent. The first field, with a long-time rotation of corn, corn, corn, and soybeans, produced an average of 62.4 bushels an acre over the four- year period. On the second field, where a rotation of corn, oats, red clover, and wheat (with a clover catch crop) is used, an average yield of 114.2 bushels an acre was obtained. Both fields have received the same soil treatment. Thus the more desirable long-time rotation for this soil type increased the yield 51.8 bushels an acre. 500 BULLETIN No. 536 [February, CONTRIBUTORS OF SEED Ainsworth Hybrids Ainsworth Seed Co Mason City Appl Hybrids Appl's Hybrid Seed Co St. Joseph Baird Hybrids James O. Baird Williamsfield Bear Hybrids Bear Hybrid Corn Co Decatur, Box 628 Bo-Jac Hybrids Bo-Jac Hybrids Mt. Pulaski Canterbury Hybrids C. E. Canterbury Seed Co Can trail Cargill Hybrids Cargill, Inc St. Peter, Minn. Carlson Hybrids Carlson Hybrid Corn Co.. .'.' Audubon, Iowa Castle Ohio Hybrids Leroy Castle Bluffs Corn Belt Hybrids Corn Belt Hybrid Seed Co., Inc Boswell, Ind. Crow Hybrids Crow's Hybrid Corn Co Milford DeKalb Hybrids DeKalb Agricultural Assn DeKalb Doubet Hybrids E. W. Doubet Hanna City Embro Hybrids Ed. F. Manglesdorf & Bro., Inc 1020 S. 4th St., St. Louis, Mo. Farmcraft Hybrids Farmcraft Seed Co Oxford, Ind. Ferris Hybrids Ferris Hybrids Princeton Frey Hybrids Frey Hybrid Corn Co Oilman Funk Hybrids Funk Brothers Seed Co , Bloomington Holmes Hybrids Holmes Hybrids .' Edelstein Huebsch Hybrids L. A. Huebsch & Son Mundelein Huey Hybrids Huey Seed Co Carthage Hulting Hybrids G. E. Hulting & Son Geneseo Illinois Hybrids 111. 21 (Haudrich Hybrid Corn Co., Belleville; Geo. L. Pfeifer & Son, Arcola; Powers Seed House, Brocton; 111. Agr. Exp. Sta.; P. A. Stone & Son, Pleasant Plains) 111. 101 (L. A. Huebsch & Son; 111. Agr. Exp. Sta.) 111. 200 (Marshall Butzow, St. Joseph; Haudrich Hybrid Corn Co.; Geo. L. Pfeifer & Son; 111. Agr. Exp. Sta.) 111. 201 (111. Agr. Exp. Sta.; Mountjoy Hybrid Seed Co., Atlanta) 111. 206 (Geo. L. Pfeifer & Son) 111. 246 (111. Agr. Exp. Sta.) 111. 269 (L. A. Huebsch & Son) 111. 273-1 (O. P. Tiemann, Bloomington) 111. 751 (111. Agr. Exp. Sta.) 111. 784 (Haudrich Hybrid Corn Co.; 111. Agr. Exp. Sta.) 111. 972 (Appl's Hybrid Seed Co.) 111. 972-1 (111. Agr. Exp. Sta.; Geo. L. Pfeifer & Son) 111. 972A-1 (111. Agr. Exp. Sta.; P. A. Stone & Son) 111. 1091 (Montjoy Hybrid Seed Co.) 111. 1091A (111. Agr. Exp. Sta.) 111. 1180 (L. A. Huebsch & Son) 111. 1246 (Geo. Holder, Bloomington, Box 801) 111. 1248 (Seeber Bros. Seed Co., Champaign) 111. 1277, 1279 (111. Agr. Exp. Sta.) 111. 1337 (111. Agr. Exp. Sta.; Geo. L. Pfeifer & Son; Edward Wilson, Winchester) 111. 1459, 1508, 1515, 1521B, 1540A, 1540B, 1570, 2214(W), 2216(W) (111. Agr. Exp. Sta.) lowealth Hybrids The loweath Co Lexington Kelly Hybrids Kelly Seed Co San Jose Keystone Hybrids Corneli Seed Co 101 Chauteau Ave., St. Louis, Mo. Lowe Hybrids Lowe Seed Co Aroma Park Moews Hybrids Moews Seed Co Granville Morton Hybrids Roy A. Morton & Sons Bowen Munson Hybrids Carl Munson Galesburg National Hybrids National Hybrid Corn Co Normal Nichols Hybrids . . . . Nichols Bros. . Hebron 1950~\ ILLINOIS TESTS OF CORN HYBRIDS: 1949 501 Null Hybrids Null Seed Farms Colchester P. A. G. Hybrids Pfister Assoc. Growers Inc Aurora Pfeifer Hybrids Geo. L. Pfeifer & Son Arcola Pfister 187 Hybrids Lester Pfister El Paso Pike Hybrids Pike Hybrid Corn Co Pontiac Pioneer Hybrids Pioneer Hi-Bred Corn Co. of 111 Princeton Ponder Hybrids Ponder Seed Co Hammond Pride Hybrids Pride Hybrid Co. (Keith McGuire) Forreston Pringle Hybrids Pringle Seed Co Sparland Producers Hybrids Producers' Seed Co Piper City Schwenk Hybrids W. T. Schwenk & Sons Edwards Sibley Hybrids Sibley Farms Service Corp Sibley Sieben Hybrids Sieben Hybrids Geneseo, R. 1 Stewart Hybrids Frank S. Stewart Princeville Stiegelmeier Hybrids H. L. Stiegelmeier Normal Super-Crost Hybrids E. J. Funk & Sons Kentland, Ind. Top Yield Hybrids Top Yield Cooperative Co Galva United Hybrids United Hybrid Growers Assn Shenandoah, la. U. S. Hybrids U. S. 13 (Appl's Hybrid Seed Co.; Haudrich Hybrid Corn Co.; 111. Agr. Exp. Sta.; Kelly Seed Co.; Dale Lepper, Quincy; Roy A. Morton & Sons; Geo. L. Pfeifer & Son; P. A. Stone & Son; Edward Wilson) Whisnand Hybrids Myron Whisnand Arcola INDEX TO ENTRIES When a hybrid appears in the summary portion of a table, the table number in this index is printed in blacker type. At Dixon Springs the bottomland field is indicated in this index as 13 (B), the upland field as 13 (U). Hybrid Table Ainsworth X-12 4, 9, 10 Ainsworth X-13-3 5, 6, 7, 11, 12, 13, 13, 14, 15B Ainsworth X-14A 7, 13, 13, 14, 14, 15B, 15B Ainsworth X-21 4, 5, 6, 7, 9, 10, 11, 11, 12, 13, 14, 15B Ainsworth X-201 5, 6, 11, 12, 14, 15B Appl A-130 7, 13 Appl A-136 4, 5, 10, 11 Appl A-202 4, 9, 10 Appl A-1766 6, 12, 14 B Baird 380 ...5,11 Bear OK-31 6, 12 Bear OK-35 5, 11 Bear OK-40B 15B Bear OK-50 5, 6, 11, 12 Bear OK-66 . . .7, 13 Bear OK-72 7, 13 Bear OK-76 . .14 BearOK-77 14 Bear OK-88T . . .6, 12, 12 Bear OK-90 15B Bear OK-111 9 Bear OK-212 4, 10 Bear OK-411 4, 10 Bear Tapicorn 4 6, 7, 12, 13 BO-Jac28 . . .7, 13 BO-Jac68 5, 11 Hybrid Table Canterbury 404 7, 13, 13, 14 Canterbury 412 14 Canterbury 420 7, 13, 14 Canterbury 456 14 Cargill 250 4, 10 Cargill 339 5, 11 Carlson C-33 14 Castle Ohio C-92 7, 13 Corn Belt 60A 6, 12, 14 Corn Belt 70A 14, 15B Crow 360 3, 4, 10, 10 Crow 407 3, 4, 10, 10 Crow 432 4, 10 Crow 607 14, 14 Crow 608 3, 6, 7, 12, 12, 13, 13 Crow 633 3, 5, 6, 11, 12, 12 Crow 660 5, 6, 7, 11, 12, 13 Crow 805 7, 13, 13 Crow "Deep Root" 5, 6, 7, 11, 12, 13 D DeKalb82... ...7,13 DeKalb239 9 DeKalb 240 9 DeKalb241 9 DeKalb 404A 9 DeKalb 406 9 DeKalb 410 9 DeKalb 422.. ...9 502 BULLETIN No. 536 [February, Hybrid Table DeKalb 627 6, 12 DeKalb 800A 6, 12 DeKalb 825 7, 13 DeKalb 847 7, 13 DeKalb 875 7, 13, 13, 14, 14 Doubet D-1E 4, 10 Doubet D-3W 5, 6, 11, 12 Doubet D-ll 5, 6,7, 11, 12, 13, 14 Doubet D-41 7, 13, 14, 14, 15B, 15B Embro36 , 7, 13, 13 Embro 49 14, 14, 1SB, 15B Embro 155(W) 14 Farmcraft PC-63 6, 12 Farmcraft FC-69 6, 12, 12 Ferris F-ll 3, 4, 5, 9, 10, 10, 11 Ferris F-12 4, 5, 10, 11 Ferris F-14 4, 10 Frey 410 4, 9, 10 Frey 425 3, 4, 6, 10, 12 Frey 644 3, 6, 12 Frey 645 3, 6, 12, 12 Frey 692 3, 6, 12 Funk G-27 9 Funk G-29 3, 4, 10 Funk G-37 3, 5, 11, 11 Funk G-50 4, 10 Funk G-68 9 Funk G-79 7, 13 Funk G-80 14, 14 Funk G-93 5, 6, 11, 12 FunkG-95 5, 6, 11, 12 Funk G-98 7, 13, 14 FunkG-99 7, 13 Funk G-145 15B FunkG-211 6, 12, 12 Funk G-512(W) 7, 13, 14 Funk G-705 15B Funk G-711A 15B, 15U Funk G-779(W) 15B Funk G-783(W) 15B H Holmes Utility 11 4, 10 Holmes Utility 11A 4, 10 Holmes Utility 19A 5, 11 Holmes Utility 29 3, 5, 11 Holmes Utility 39C 7, 13 Holmes Utility 39H 5, 6, 11, 12 Huebsch H-44 9 Huey H-48 14 Huey H-23 5,11 Huey H-42 5, 11, 11 Huey H-75 4, 10 Hulting J-41 4, 10 Hulting 101 5, 6, 11, 11, 12 Hulting 240 4, 10 Hulting 380 5, 6, 11, 11, 12 Illinois 21 (Haudrich) 14 Illinois 21 (Pfeifer) 6, 12 Illinois 21 (Powers) 7, 13 Illinois 21 (Station) 3, 5, 6, 11, 12 Illinois 21 (Stone) 7, 13 Illinois 101 (Huebsch) 9 Illinois 101 (Station) 3, 4, 10, 10 Illinois 200 (Butzow) 7, 13 Illinois 200 (Haudrich) 14, 15B Illinois 200 (Pfeifer) 14 Illinois 200 (Station) 14, 15B, 15U Illinois 201 (Mountjoy) 7, 13 Illinois 201 (.Station) 7, 13 Illinois 206 (Pfeifer) 7, 13 Hybrid Table Illinois 246 (Station) 16 Illinois 269 (Huebsch) 9 Illinois 273-1 (Tiemann) 5, 6, 11, 12 Illinois 751 (Station) 3, 4, 10, 10, 16 Illinois 784 (Haudrich) 14 Illinois 784 (Station) 14, 15B Illinois 972 (Appl) 6, 12 Illinois 972-1 (Pfeifer) 7, 13 Illinois 972-1 (Station) 16 Illinois 972A-1 (Station) 5, 11 Illinois 972A-1 (Stone) 7, 13 Illinois 1091 (Mountjoy) 6, 12 Illinois 1091 A (Station) 3, 4, 10, 10 Illinois 1180 (Huebsch) 9 Illinois 1246 (Holder) 6, 12 Illinois 1248 (Seeber) 6, 12 Illinois 1277 (Station) . 4, 10 Illinois 1279 (Station) 4, 10 Illinois 1337 (Pfeifer) 7, 13 Illinois 1337 (Station) 5, 6, 7, 11, 12, 13 Illinois 1337 (Wilson) 14 Illinois 1459 (Station) 14, 15B, 15B Illinois 1508 (Station) 4, 6, 10, 12 Illinois 1515 (Station) 5, 6, 7, 11, 12, 13 Illinois 1521B (Station) 14, 15B Illinois 1540A (Station) 14 Illinois 1540B (Station) 15B Illinois 1570 (Station) 5, 6, 7, 11, 12, 13 Illinois 2214 (W) (Station). . .14, 15B, 15B, 15U, 15U Illinois 2216(W) (Station) . 7, 13, 15B, 15B, 15U, 15U lowealth AF-11 4, 10 lowealth AQ 5, 6, 11, 12 lowealth 16 4, 5, 10, 11 lowealth 25 7, 13, 14, 15B lowealth 25A 7, 13 lowealth 29A 14, 15B, 15U lowealth TX... ..15B Kelly K-42 5, 11 Kelly K-44 7, 13 Kelly K-77 3, 5, 6, 7, 11, 12, 12, 13 Kelly K-88 7, 13, 13 Kelly K-374 3, 5, 6, 11, 12 Keystone 32 4, 10 Keystone 33 4, 10 Keystone 38 3, 6, 12, 12, 14, 14, 1SB, 15B Keystone 41 5, 6, 7, 11, 12, 13 Keystone 44 4, 10, 10 Keystone 45 7, 13, 13, 14, 14 Keystone 106(W) 14, 15B, 15U, 15U Keystone lll(W) 14, 15B L LoweMME... ...4,10 Lowe 32 4, 10, 10 Lowe 38 4, 10 Lowe 52 4, 10, 10 Lowe 514 5, 6, 7, 11, 11, 12, 12, 13 Lowe 520 3, 5, 6, 11, 11, 12, 12 Lowe 523 3, 6, 7, 12, 12, 13, 13, 14 Lowe 562 ' 5, 11 Lowe 580 6, 12, 12 Lowe 640 7, 13, 15B Lowe 820 14, 15B, 15B Lowe 830. . 14, 15B, 15B Lowe 840 14, 14, 15B, 15B Lowe 855(W) 14, 1SU, 15U, 15B Lowe 865(W) 15B M Moews 14 4, 5, 6, 10, 10, 11, 12 Moews 15 4, 10 Moews 18 6, 7, 12, 13 Moews 85 4, 9, 10 Moews 87 9 Moews 520 5, 6, 11, 12, 12 1950] ILLINOIS TESTS OF CORN HYBRIDS: 1949 503 Hybrid Table Moews 550 3, 5, 11 Moews 830 7, 13 Morton M-12 5, 6, 7, 11, 11, 12, 12, 13, 14 Morton M-30 5, 6, 7, 11, 12, 13, 14 Munson MH 5, 11 Munson MX 4, 10, 10 Munson M-3 4, 10 Munson M-13 5, 11 N National 114-1 3, 4, 10, 10 National 115A 5, 6, 11, 12 National 125 7, 13, 14, 14 National 125-1 5, 7, 11, 11, 13, 13 National 129 14, 14, 15B, 15B Nichols 5AA 4, 10 Nichols 5B 4, 9, 10 Nichols 75 4, 9, 10 Nichols 99 9 Nichols 202 . . .9 Nichols 202A 9 Null N-32 5, 11 Null N-49 6, 12 NullN-77 7, 13 P.A.G. 56 9 P.A.G. 61 4, 9, 10 P.A.G. 164 6, 7, 12, 12, 13 P.A.G. 170 5, 7, 11, 11, 13, 13 P.A.G. 173 6, 7, 12, 13, 13, 14, 15B, 15B, 15U P.A.G. 175 6, 12, 14 P.A.G. 253 4, 10 P.A.G. 270 5, 11 P.A.G. 282 4, 10 P.A.G. 299 4, 10, 10 P.A.G. 347 5, 11 P.A.G. 392 5, 6, 7, 11, 11, 12, 12, 13, 13 P.A.G. 612(W) 15B, 15B, 15U, 15U P.A.G. 617(W) 14, 15B P.A.G. 620(W) 14, 15B, 15B P.A.G.631(W) 14 P.A.G. 3202 14, 15B Pfeifer A-243 15B Pfister 187 Hybrid LF 123. . .4, 5, 6, 7, 10, 11, 12, 13 Pfister 187 Hybrid LF 456. . .4, 5, 6, 7, 10, 11, 12, 13 Pfister 187 Hybrid LF 789. . .4, 5, 6, 7, 10, 11, 12, 13 Pike 520 6, 12 Pioneer 300 3, 6, 7, 9, 12, 13, 14, 14 Pioneer 302 14, 15B Pioneer 304 3, 5, 6, 11, 12, 14, 15B, 15B Pioneer 313A 7, 13, 14, 15B Pioneer 313B 3, 5, 6, 7, 11, 11, 12, 13, 14, 14, 15B, 15B Pioneer 332 3, 6, 7, 12, 13, 14, 14, 15B, 15B Pioneer 336 5, 11, 11 Pioneer 339 3, 5, 11 Pioneer 340 3, 4, 10 Pioneer 349 4, 9, 10, 10 Pioneer 352 4,9,10 Pioneer 377A 9 Pioneer 505(W) 14, 14, 15B, 15B Pioneer 4040 4, 10, 10 Ponder P-180 4, 10 Ponder P-205 4, 10 Ponder P-814 7, 13 Pride D-45A 9 Pride D-56 4, 10 Pride D-66 3, 4, 10, 10 Pringle P-100 5, 11 Producers E102B 4, 5, 10, 11 Producers E114B 4, 5, 10, 11 Producers 305 4, 9, 10, 10 Producers 311. . . . .9 Hybrid Table Producers 315 4, 9, 10, 10 Producers 320 9 Producers E409 14, 15B Producers E441 14, 15B Producers E445 14, 15B Producers 730 3, 6, 7, 12, 13 Producers 900 5, 6, 7, 11, 12, 13, 13 Producers 940 3, 5, 6, 7, 11, 11, 12, 12, 13 Producers 1050 7, 13, 14, 15B Schwenk S-24 5, 11 Schwenk S-34 5, 6, 11, 12 Sibley 777 6, 12 Sieben S-340 3, 4, 5, 10, 10, 11 SiebenS-440 5, 6, 11, 11, 12 Sieben S-440E 4, 5, 6, 10, 11, 12 Sieben S-450 3, 4, 10 Stewart S-ll 5, 11 Stiegelmeier S-13 14, 15B Stiegelmeier 8-340 5, 6, 11, 12 Stiegelmeier S-360 4, 10 Stiegelmeier S-370 5, 6, 7, 11, 12, 13 Super-Crost FD-3A 4, 10 Super-Crost FD-6 6, 12 Super-Crost FD-7 5, 11 Super-Crost FD-8 15B Super-Crost F-138 3, 4, 9, 10, 10 Super-Crost F-169 5, 11, 11 Super-Crost S-12 6, 12 Super-Crost 85A 9 Super-Crost 213 4, 9, 10 Super-Crost 707(W)-1 15U Super-Crost 708(W) 7, 13, 14, 15B, 15B Super-Crost 746 6, 12 Super-Crost 840 14, 14 Super-Crost 1005B 14, 15B Super-Crost 1010S 14, 15B Top Yield M-105 4, 10 Top Yield M-546 3, 5, 11 u United U-41 4, 10 United U-47 5, 11 II. S. 13 (Appl) 14 U. S. 13 (Haudrich) 14 U. S. 13 (Kelly) 14 U. S. 13 (Lepper) 5, 11, 14 U. S. 13 (Morton) 14 U. S. 13 (Pfeifer) 7, 13 U. S. 13 (Station) 3, 5, 6, 7, 11, 12, 13, 15B U. S. 13 (Stone) 7, 13 U. S. 13 (Wilson) 7, 13 w Whisnand 804 ... ... 7, 13, 13 Whisnand 804D 7, 13, 14 Whisnand 834D 14, 15B Whisnand 905(W) 14, 14, 15B, 15U, 15U Whisnand 917(W) 14, 14, 15B Single Crosses Hy x L317 16 Hy xO7 16 WF9 x Hy 16 WF9xM-14 16 WF9x 38-11 16 5120 xHy 16 504 BULLETIN No. 536 INCREASE IN CORN YIELDS 1920-1949 YIELDS OF CORN in recent years have increased directly with the per- cent of acreage planted with hybrid seed. Open-pollinated corn grown in Illinois during the 16 years 1920-1935 failed to produce a state average- yield of 40 bushels for any three-year period. For the entire period it was only 34.5 bushels an acre. Since 1939, when the acreage seeded to hybrids surpassed that seeded to open-pollinated varieties, the state average-yield for any three-year period has never been below 46 bushels and for the entire period it has been 50.7 bushels. This is an increase of 16.2 bushels, or 47 percent, over the average for 1920-1935. 50 40 30 m 20 r 10 100 80 60 40 20 1920 1925 1930 1935 1940 1945 1950 A number of factors may have contributed to the increase in yields during this period. Among them were: generally favorable growing seasons, mechanization of cultural practices, greater use of fertilizer, and the use of chemicals in combating disease, insects, and weeds. There remains little doubt, however, that hybrids have taken far more advantage of the newer, faster present-day farming methods and techniques than open-pollinated varieties could have. If the state average yield is to continue to climb, better cultural and fertility practices must be followed, and plant breeders must develop hybrids that are more tolerant or more resistant to the hazards of corn production. Two such hazards of prime importance in 1949 were corn borers and stalk rots. 90503-5043300 UNIVERSITY OF ILLINOIS-URBANA Q.630.7IL6B C002 BULLETIN. URBANA 529-540 1948-50 30112019529350