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2 CONTENTS TEST PROGRAM... PERFORMANCE DATA... SUGGESTIONS FOR COMPARING HYBRIDS TEST FIELDS RAINFALL DATA...4 SOURCES OF SEED HYBRID CORN ENTRY TABLE HYBRID CORN TEST RESULTS...9 CORN TRIALS Norern Region...9 West Central Region... East Central Region...5 Souern Region...9 DeKalb Corn Following Corn... Monmou Corn Following Corn... Urbana Corn Following Corn...4 Please visit our website for additional copies of e results This circular was prepared by D. K. Joos, Senior Research Specialist; R. W. Esgar, Agronomist; B. R. Henry, Research Specialist; E. D. Nafziger, Extension Agronomist; and C. A. Smy, Manager of System Services (Statistics and Computing). phone: 7--94, fax: , joos@uiuc.edu.

3 PERFORMANCE OF COMMERCIAL CORN HYBRIDS IN ILLINOIS, 006 TEST PROGRAM Selection of entries. Each year, producers of corn hybrids in Illinois and surrounding states are invited to enter hybrids in e Illinois performance trials. Financing is provided ru entry fees. Entrants are required to enter eir corn hybrids regionally at a fee of $40 for each corn hybrid entered in a region or $80 per hybrid for e corn following corn tests. Most of ese hybrids are commercially available, alough a few experimental hybrids are also entered. Number and location of tests. In 006, hybrid corn entrants were required to enter hybrid(s) in at least one of 4 regions each consisting of locations wi a total of locations in e state (see map). These sites represent e major soil and climatic areas of e state. Hybrids. There were 70 corn hybrids from 5 companies tested in 006. Field-plot design. Three replications of an alpha lattice design or randomized complete block were used to give each corn hybrid an equal chance to show its merits. Planting meods. All trials were planted by a modern four row planter modified for small plot work. A soil insecticide (Force) was applied in furrow at planting for all corn trials. Corn plots were planted to stand and later counted to confirm population. Each plot was four rows wide and feet long. The center two rows of each plot were harvested to determine yields. Fertilization. All test fields were at a high level of fertility. Additional fertilizer was plowed down or side dressed as needed to ensure top yields. Meod of harvest. All corn plots were harvested wi a custom-built, self-propelled, corn plot combine. Grain collected from each plot was weighed, and tested for moisture content. An electronic moisture monitor was used in e combine for all moisture readings. No allowance was made for grain at might have been lost in harvest. PERFORMANCE DATA Grain yield. Grain weight and moisture was converted to bushels per acre of No. shelled corn (5.5 percent moisture). Moisture content. Occasionally, hybrids too late in maturity for a given area are entered in ese tests. These hybrids are often high in yield, but eir moisture content may make em poor choices for farm use unless proper drying or storage facilities are available. Erect plants. The number of erect plants in each plot of a hybrid was determined at harvest time. Any plant leaning at an angle of more an 45 degrees or broken below e ear was considered lodged. Plants broken above e ear were considered erect. Population. Corn plots were planted to population and later counted to confirm population. Stand differences may be caused by failure to germinate or by damage from diseases, insects, cultivation, or rodents. SUGGESTIONS FOR COMPARING HYBRIDS It is impossible to measure performance exactly in any test of plant material. Harvesting efficiency may vary, soils may not be uniform, and many oer conditions may produce variability. Results of repeated tests, like ose reported here, are more reliable an ose of a single-year or a single-strip test. When one hybrid consistently out yields anoer at several test locations and over several years of testing, e chances are good at is difference is real and should be a consideration in choosing a hybrid. When comparing yields, however, grain moisture content, percentage of erect plants, and plant population must also be considered. A number of statistical tests are available for comparing hybrids wiin a single trial. One of ese tests, e least significant difference (L.S.D.), when used in e manner suggested by Carmer and Swanson is quite simple to apply and is more appropriate an most oer tests. When two hybrids are compared and e difference between em is greater an e tabulated L.S.D. value, e hybrids are judged "significantly different." The L.S.D. is a number expressed in bushels per acre and presented following e average yield for each location. An L.S.D. level of 5% is shown. Find e highest yielding hybrid wiin e regional table or single location table of interest, subtract e 5% L.S.D. value from e highest yielding hybrid, every hybrid wi a greater yield an e resulting number is 'statistically e same' as e highest yielding hybrid. Consider e merits of e hybrids in is group when making hybrid selections. In a study of e frequencies of occurrence of ree types of statistical errors and eir relative seriousness, Carmer found strong arguments for an optimal significance level in e range á = 0.0 to 0.40, where á is e Type I statistical error rate for comparisons between means at are really equal. Herein, a value of á = 0.5 is used in computing e L.S.D. 5- percent level shown in e tables. To make e best use of e information presented in is circular and to avoid any misunderstanding or misrepresentation of it, e reader should consider an additional caution about comparing hybrids. Readers who compare hybrids in different trials should be extremely careful, because no statistical tests are presented for at purpose. Readers should note at e difference between a single hybrid's performance at one location and its performance at anoer is caused primarily by environmental effects and random variability. Furermore, e difference between e performance of hybrid A in one trial and at of hybrid B in anoer is e result not only of environmental effects and random variability, but of genetic effects as well. Carmer, S.G. and M.R. Swanson. "An Evaluation of Ten Pairwise Multiple Comparison Procedures by Monte Carlo Meods." Journal of American Statistical Association 68: Carmer, S.G. "Optimal Significance Levels for Application of e Least Significant Difference in Crop Performance Trials." Crop Science 6:95-99, 976.

4 006 TEST FIELDS Mt. Morris Location: Nelson farm, Ogle county, nor of Mt. Morris, nor central Illinois. Cooperator: Rick Nelson. Soil type: Muscatine silt loam. Planting date: May 7. Harvest date: October 4. Nitrogen: 50lbs. as 8%, PRE. Herbicides: Pre emerge- Harness Xtra, Hornet. Tillage: Spring- field cultivation. DeKalb Location: University of Illinois, Norern Illinois Research Center, DeKalb county, souwest of DeKalb. Cooperators: Lyle Paul; research director, David Lindgren; farm foreman. Soil type: Flanagan silty clay loam. Planting date: April 8. Harvest date: October. Nitrogen (conventional): 6 lbs. as 8%,PPI. Nitrogen (corn on corn): 0 lbs. as 8% PPI. Herbicides: Pre emerge-usa 00, Atrazine. Tillage: Fall- moldboard plow; Spring- mulchfinish. Erie Location: Slaymaker farm, Whiteside county, west of Rock Falls, norwestern Illinois. Soil Type: Beaucoup silty clay loam. Cooperator: Robert Slaymaker. Planting Date: May 4. Harvest Date: October 6. Nitrogen: 00 lbs. as 8% PPI. Herbicides: Lumax Tillage: Fall- chisel; Spring- field cultivate. Monmou Location: University of Illinois, Norwestern Illinois Agricultural Research and Demonstration Center, Warren county, norwest of Monmou. Cooperators: Eric Adee; research director, Martin Johnson; farm foreman. Soil type: Sable silty clay loam. Planting date: April 7. Harvest date: September 6. Nitrogen (conventional): 80 lbs. as 8% PPI. Nitrogen (corn on corn):0 lbs. as 8% PPI. Herbicides: PPI- Harness Extra; Post- Callisto, Steadfast Tillage: Fall- chisel plow; Spring- field cultivate. New Berlin Location: King farm, Sangamon county, nor of New Berlin, central Illinois. Cooperators: Ike and Justin King. Soil type: Ipava silt loam. Planting date: April 7. Harvest date: September 9. Nitrogen: 80 lbs as anhydrous + DAP (fall applied). Herbicides: PPI- Lexar; Post- Laddok. Tillage: Fall- chisel plow; Spring- turbo till. Perry Location: University of Illinois, Orr Agricultural Research and Demonstration Center, Pike county, west of Perry, west-central Illinois. Cooperator: Mike Vose; farm foreman. Soil type: Herrick silt loam. Planting date: April 8. Harvest date: September 0. Nitrogen: 00 lbs. as 8% PPI. Herbicides: Pre emerge- Harness Xtra; Post-Laddok. Tillage: Fall- deep chisel; Spring- field cultivate. Dwight Location: Hoffman farm, Grundy county, nor of Dwight, noreastern Illinois. Cooperator: Allen Hoffman. Soil type: Reddick silty clay loam. Planting date: April 8. Harvest date: October 7. Nitrogen: 00 lbs. as 8% PPI. Herbicides: PPI- Volley, Atrazine; Post-Laddok. Tillage: Spring-soil finisher. Goodfield Location: Wurmnest farm, Woodford county, nor of Goodfield, central Illinois. Cooperator: Mike Wurmnest. Soil Type: Ipava silt loam. Planting date: April 8. Harvest date: October 5. Nitrogen: 80 lbs. as 8% PPI. Herbicides: PPI-Outlook, Post- Laddok. Tillage: Fall -chisel plow, Spring- soil finisher. Urbana Location: University of Illinois, Crop Sciences Research and Education Center, Champaign county, Urbana, east-central Illinois. Cooperators: Robert Dunker; superintendent, Mike Kleiss; farm foreman. Soil type: Flanagan silt loam. Planting date: April 7. nd Harvest date: October. Nitrogen: 80 lbs. as 8% PPI. Herbicides: PPI- Degree extra, Aatrex. Post- Calisto, Steadfast. Tillage: Fall- chisel plow, Spring- soil finisher. Brownstown Location: University of Illinois, Brownstown Agronomy Research center, Fayette county, sou of Brownstown, soucentral Illinois. Cooperators: Steve Ebelhar; research director, Lindell Deal; field worker. Soil type: Cisne silt loam. Planting date: May 8. Harvest date: October 4. Nitrogen: 60 lbs. as 8% PPI. Herbicides: PPI- Bullet, Atrazine. Tillage: Spring- disk, mix-n-till.

5 Belleville Location: Souern Illinois University Research Center, east of Belleville, St. Clair county. Cooperators: Dr. Ed Varsa; research director, Ron Krausz; field manager. Soil type: Ebbert silt loam. Planting date: May 8. Harvest date: September 8. Herbicides: PPI- Lumax, Aatrazine; Nitrogen: 50 lbs. as 8% PPI. Tillage: Fall- Chisel plow, Spring-disk, field cultivate, and cultimulcher. Elkville Location: Funk farm, Jackson county, nor of Carbondale, souern Illinois. Cooperators: John and Trent Funk. Soil Type: Okaw silt loam. Planting date: May 8. Harvest date: September 7. Nitrogen: 70 lbs as ammonium nitrate PPI. Herbicides: PPI- Bicep II magnum, Aatrex; Post-Laddok. Tillage: Spring- disk, mulch finisher. GROW ING SEASON RAINFALL Location May June July Aug Sept Total Mt. Morris DeKalb Erie Monmou New Berlin Perry Dwight Goodfield Urbana Brownstown Belleville Elkville

6 SOURCES OF SEED Adrain, Adrain Associates, 9697 West Main,Kalamazoo, MI ( ) Ag Venture, Ag Venture Seeds, 76 E. 00N, Hoopeston, IL ( ) Asgrow, Monsanto, 800 N. Lindbergh Blvd., St. Louis, MO 667. ( ) Beck, Beck's Superior Hybrids, 6767 E. 76 St., Atlanta, IN 460. ( ) Bio Gene, Bio Gene Seeds, 5477 Tri County Hwy., Sardinia, OH 457. ( ) Bojac, Bo Jac Seed Co., Av. Mt. Pulaski. IL ( ) Burrus, Burrus Hybrids, 86 Arenzville Rd., Arenzville, IL 66. ( ) Corn Belt, Corn Belt Hybrids, P.O. Box 95, St. Marys, OH ( ) Cornelius, Cornelius Seed Corn Co., Av., Bellevue, IA 50. ( ) Crows, Crow s Hybrid Corn Co., P.O. Box 57, Kentland, IN ( ) Dairyland, Dairyland Seed, P.O. Box 958, West Bend, WI ( ) DeKalb, Monsanto, 800 N. Lindbergh Blvd., St. Louis, MO 667. ( ) DeRaedt, DeRaedt Seed Corp., 0 N 97 Tower Rd. Hampshire, IL ( ) Dyna-Gro, UAP Distribution, 67 W. Washington, Pittsfield, IL 66. ( ) Exsgen, Miles Seed, P.O. Box 879 Owensboro, KY ( ) Farm Advantage, Farm Advantage, 75 Hwy 69, Belmond IA 504. ( ) Gateway, Gateway Seed Co., 557 Van Buren Road, Nashville, IL 66. ( ) Golden Harvest, Golden Harvest, Box 48, Pekin, IL ( ) Hoblit, Hoblit Seed, Av. P.O. Box 487, Atlanta, IL 67. ( ) Horizon, Horizon Genetics P.O. Box, Mason City, IL ( ) Hubner, Hubner Seed Company, 080 West St Rd 8, West Lebanon, IN 4799 ( ) Hughes, Hughes Hybrids, Inc., 06 N. Hughes Road, Woodstock, IL (85-8-4) ICORN, ICORN, 79 N. Peru St. Cicero, IN ( ) Jung, Jung Seed Genetics, Inc., 4 Sou High St. Randolph, WI ( ) Kaltenberg, Kaltenberg Seeds, 5506 State Hwy 9 P.O. Box 78, Waunakee, WI ( ) Kruger, Kruger Seed Co., St., Dike, IA ( ) Laser, Golden Harvest, Box 48, Pekin, IL ( ) Legacy, Legacy Seeds, Inc., 559 Black Rd. P.O. Box, Fenton, IL 65. ( ) Lewis, Lewis Hybrids, Inc., 50 W. Maple St., P.O. Box 8, Ursa, IL 676. ( ) LG, LG Seeds, 87 Shissler Rd., Elmwood, IL 659. (09-74-) M&D, M&D Seed, 898 Ford Rd., Kinmundy, IL ( ) Merschman, Merschman Seeds,Inc., 0 Av. D, West Point, IA ( ) Midland, Brown Seed Enterprises,Inc., 89 CR 550 N. Neoga,IL ( ) Midwest, Midwest Seed Genetics, P.O. Box 58, Carroll IA 540. ( ) Miller, Miller Hybrids, Inc., St. SW, Iowa City IA 540. ( ) Munson, Munson Hybrids, Inc., 6 Knox Road 00 E., Galesburg, IL 640. ( ) Partners Brand, DeRaedt Seed Corp., 0 N 97 Tower Rd. Hampshire, IL ( ) Pioneer, Pioneer Hi-Bred International, Inc., 47 Carole Dr., Bloomington, IL ( ) Prairie Hybrids, Prairie Hybrids, 7445 Hurd Rd., Deer Grove, IL 64. ( ) Premium, Premium Seed, Inc., 08 0 St. P.O. Box 8, Berwick, IL 647. ( ) Prime, Prime Farm Seeds, Inc.,0 N. Maple St., P.O. Box 549, Dana, IN ( ) Quality Plus, Quality Plus Seed Company, 56 State Highway 64, Monmou, IL 646. ( ) Renk, Renk Seed Co., 6800 Wilburn Rd., Sun Prairie, WI ( ) Roeschley, Roeschley Hybrids, 8 E. 500 N. Rd., Graymont, IL 674. ( ) Select, Select Seed Hybrids, 77 W State Rd. P.O. Box 54, Camden, IN ( ) Sieben, Sieben Hybrids, Inc., 44 Gorman Drive, Geneseo, IL 654. ( ) Steyer, Steyer Seeds, 654 N. Co. Rd., Tiffin, OH ( ) Stone, Stone Seed Co., 5965 W. St. Rt. 97, Pleasant Plains, IL ( ) Trelay, Trelay Seed Co., 6 Hwy 80, Livingston, WI ( ) Trisler, Trisler Seed Farms, Inc., 74 E 800 Nor Rd., Fairmount, IL 684. ( ) Triton, Bo Jac Seed Co., Av. Mt. Pulaski. IL ( ) Unity, Unity Seeds, 07 Fallon St., Kentland IN ( ) Vigoro, CPS-Vigoro Seeds, PO Box 467, Galesburg, IL , ( ) Whata, Whata Hybrid, Inc., 8908 W. Sabin Church Rd., Pearl City, IL 606. ( ) Whisnand, Whisnand Hybrids, 0 E. State Rt., Arcola, IL 690. ( ) Wilken, Wilken Seed Grains, Inc., R.R. 4, P.O. Box 770, Pontiac, IL ( ) Willcross, Willcross Hybrids, LLC, P.O. Box 560, Garden City, MO ( ) Wyffels, Miles Seed, P.O. Box 879 Owensboro, KY 404. ( ) 5

7 006 Corn Entries *Regions Entered 006 Corn Entries *Regions Entered Company-Brand Variety RM Company-Brand Variety RM ADRAIN AX4CB DYNA-GRO 57F06... AGVENTURE 844 RCB DYNA-GRO 57F AGVENTURE 944 CB DYNA-GRO 57P ASGROW RX668RR/YGCB DYNA-GRO 57P ASGROW RX674RR DYNA-GRO 57P ASGROW RX75RR/YGCB EXSEGEN ES ASGROW RX75RR/YGPL.... FARM ADVANTAGE ASGROW RX754RR FARM ADVANTAGE 96L ASGROW RX785RR/YGCB GATEWAY 445YGCB BECK 544RR GATEWAY 54YGCB BECK 546CBRWRR GATEWAY 64YGCB BECK 5444RWRR GOLDEN HARVEST H BECK 5507CBRWRR GOLDEN HARVEST H BECK 566CBRWRR GOLDEN HARVEST H-905 HX BECK 586CBRR HOBLIT 476 BT BECK 5959RW... 0 HOBLIT 4876 YG BECK 697RW... HOBLIT 575 RW/RR BECK 67CBRWRR HOBLIT 547 T BECK 796CBRR HOBLIT 5677 T... 4 BIO GENE BG 8... HORIZON 67B0* BIO GENE BG 8N HORIZON 68P0* BIO GENE LL/HX HORIZON 68T0L BO-JAC HORIZON 69B0* BURRUS 447RWR HORIZON 69P0* BURRUS 450P HORIZON 69P05* BURRUS 48HL HORIZON 69W0R BURRUS 49S HORIZON 70B0*... 0 BURRUS HORIZON 7B0C BURRUS 57RWR HORIZON 7H0LR BURRUS 644RWR HORIZON BURRUS 685S... 4 HORIZON BURRUS 796T HORIZON BURRUS 80R HORIZON CORN BELT X58 YGPL/RR HORIZON CORN BELT X587 BT HORIZON 7P*... CORNELIUS C447RWRR HORIZON 7PR CORNELIUS C54RR HORIZON 7WR... CORNELIUS C547RWRR HORIZON CORNELIUS C560HX HORIZON CORNELIUS C59YGPL HORIZON 76P0R CORNELIUS C598RW HUBNER H445 BL CORNELIUS C66YGPL HUBNER H4440 CB CORNELIUS C684RRYG HUBNER H455 CB CROWS 4S HUBNER H4677 CB CROWS 484X HUBNER H5808 PL CROWS 498X HUGHES 540 R CROWS 576S HUGHES 578 R CROWS 56R HUGHES 66 R DAIRYLAND DST 74BT HUGHES 695 R DAIRYLAND STEALTH HUGHES 7 R+... DAIRYLAND STEALTH HUGHES 7745 CB... DAIRYLAND STEALTH HUGHES 787 CBL DAIRYLAND STEALTH ICORN 04.CX DAIRYLAND STEALTH ICORN 08.B DAIRYLAND STEALTH ICORN 08.RWB DAIRYLAND STEALTH ICORN 08.RWBRX DAIRYLAND STEALTH ICORN 09.BR DAIRYLAND STEALTH ICORN 0.RWB DEKLAB DKC57-79 (RR/YGPL) ICORN.RWB DEKLAB DKC6-68 (RR/YGRW) ICORN.RWBRX DEKLAB DKC6-9 (RR/YGPL) ICORN.BX DEKLAB DKC6-8 (RR/YGCB) 4 ICORN 4.B DEKLAB DKC64- (RR/YGRW) ICORN 5.RWBR DERAEDT JUNG 4587 YGCB DYNA-GRO 55B JUNG 74 YGCB DYNA-GRO 56P... 0 JUNG 77 RR/YGPL * see page 5 for key to RM and regions entered 6

8 006 Corn Entries *Regions Entered 006 Corn Entries *Regions Entered Company-Brand Variety RM Company-Brand Variety RM KALTENBERG K657RRPLUS LG LG KALTENBERG K74LBT LG LG65BT... 4 KALTENBERG K755BT LG LG6BTRW KRUGER LG LG640BT KRUGER M&D 884 RR KRUGER M&D 8845 RR... 4 KRUGER MERSCHMAN M-4A KRUGER MERSCHMAN M-4A KRUGER MERSCHMAN M-4A KRUGER 050A... 0 MERSCHMAN M-504B KRUGER 050B... 0 MERSCHMAN M-508C KRUGER MERSCHMAN M-509A KRUGER 0605B MERSCHMAN M-509A KRUGER MERSCHMAN M-5C KRUGER MERSCHMAN M-606A KRUGER MERSCHMAN M-60F KRUGER 606RR MERSCHMAN M-6D KRUGER 05RR/YGCB MERSCHMAN M-6B KRUGER 44RR/YGCB MERSCHMAN M-7E KRUGER 506RR/YGCB MERSCHMAN M-7E KRUGER 5RR/YGCB MIDLAND MG 507 CB KRUGER 57RR/YGCB MIDLAND MG KRUGER 509YGCB MIDLAND MG 66 CB KRUGER 509BTLL MIDLAND MG 67 CBL KRUGER 50YGCB MIDLAND MG 707 HX KRUGER 5YGCB MIDLAND MG 77 CB KRUGER 55BTLLA MIDLAND MG 7A58 BT KRUGER 55BTLLB MIDLAND MG 7B4 BT KRUGER 5406BTLL MIDLAND MG 806 RRCBRW KRUGER 5407BTLL MIDWEST 767S KRUGER 546YGCB MIDWEST 774X KRUGER 5504YGCB MIDWEST 78X KRUGER 5505YGCB MIDWEST 800S KRUGER 55BTLL MIDWEST 80R KRUGER 554YGCB MILLER M57-5H KRUGER 650TS MILLER M58-54B KRUGER 66TS MUNSON KRUGER 66TS MUNSON KRUGER 76YG MUNSON KRUGER 8508HX MUNSON 88RR KRUGER 9YGCB MUNSON 90RR KRUGER 9TS MUNSON M06RR KRUGER 90TS PARTNERS BRAND 60 CR KRUGER 9RR/YGCB PARTNERS BRAND 66 RRCR KRUGER 9407TS PIONEER P LASER L-8H5 RW PIONEER A LASER L-8H RR PIONEER D... 4 LASER L-8H59 BT PIONEER K4... LASER L-9H6 BT PIONEER K LASER L-9H9 BT PIONEER N... 4 LEGACY L-5505 RRBT PIONEER 4A LEGACY L PIONEER 4P89... LEGACY L-677 BT PIONEER 5A LEGACY LT-5... PIONEER 5D LEWIS 4567 CB/RR PRAIRIE LEWIS 4576 RW/RR PRAIRIE LEWIS 4886 PL PRAIRIE LEWIS 4956 HX... 0 PRAIRIE LEWIS 545 CB... PRAIRIE LEWIS 54 CB... PRAIRIE LEWIS 5567 CB/RR PRAIRIE LEWIS 5997 PL/RR PREMIUM P LEWIS 7044 CB PREMIUM P LEWIS 7095 PL/RR PREMIUM P 5... LG LG540RW PREMIUM P LG LG545BT PRIME 65CB/RR * see page 5 for key to RM and regions entered 7

9 006 Corn Entries *Regions Entered 006 Corn Entries *Regions Entered Company-Brand Variety RM Company-Brand Variety RM PRIME 76CB... VIGORO V5Y PRIME VIGORO V PRIME 7776CB... VIGORO V54Y QUALITY PLUS Q YGCB/RR.... VIGORO V58Y QUALITY PLUS Q YGCB WHATA QUALITY PLUS Q 4 YGCB WHATA QUALITY PLUS Q 50 YGPL WHATA QUALITY PLUS Q 5 YGPL/RR.... WHATA QUALITY PLUS Q 65 YGPL/RR WHATA RENK RK789RRYGPL WHATA RENK RK WHISNAND RENK RK854YGCB WHISNAND RENK RK870RRYGPL WHISNAND RENK RK888YGCB WILKEN W ROESCHLEY RX CB WILKEN W ROESCHLEY RX 78 BT WILKEN W ROESCHLEY RX 407 CB WILKEN W ROESCHLEY RX 48 BT WILKEN W ROESCHLEY RX 5 BT WILKEN W ROESCHLEY RX 566 HX WILKEN W ROESCHLEY RX 888 CBRWRR WILKEN W SELECT WILKEN W SELECT WILLCROSS 067X RR SELECT WILLCROSS 067X HX SELECT WILLCROSS 096 RRCB SELECT RR7... WILLCROSS 097X RR SIEBEN 675YGRW/RR WILLCROSS 07X5 CB SIEBEN 476YGCB/RR WILLCROSS 07X SIEBEN 4746YGCB/RR WILLCROSS 6 RRCB SIEBEN 874YGPL/RR WILLCROSS 7X CB STEYER 05 YGCBLL WILLCROSS 7X CB STEYER 5 YGCB WILLCROSS 7X4 CB STEYER 5 YGCB WILLCROSS 47X LCB STEYER H WYFFELS W STEYER H 78 RRYGCRW WYFFELS W STEYER H 8770YGCB WYFFELS W STONE HC 6N WYFFELS W STONE HC 7K WYFFELS W STONE HC 7R WYFFELS W STONE HC 8K WYFFELS W STONE HC 8N WYFFELS W STONE HC 8R TRELAY 6N * KEY TO REGIONS TRELAY 7N (NORTH) = MT. MORRIS DEKALB ERIE TRELAY 7P67... (W.CENTRAL) = MONMOUTH PERRY NEW BERLIN TRELAY 8B9... (E. CENTRAL) = DWIGHT GOODFIELD URBANA TRISLER T-850RRCB (SOUTH) = BELLEVILLE ELKVILLE TRISLER T-50PLRR = DEKALB CORN FOLLOWING CORN TRISLER T-567CB = MONMOUTH CORN FOLLOWING CORN TRISLER T-57RRCB = URBANA CORN FOLLOWING CORN TRISLER T-575PL TRISLER T-59PLRR ** RM = RELATIVE MATURITY IN DAYS TRISLER T-5CB TRISLER T-540CB TRISLER T-545CB TRISLER T-554RRRW TRISLER T-57CB TRISLER T-57PLRR TRISLER T-58RRCB TRITON UNITY 09 YGRW UNITY RR/YGCB UNITY 0 YGPL VIGORO V50Y VIGORO V5YR * see page 5 for key to RM and regions entered 8

10 006 Hybrid Corn Test Results: Nor Region (,000 ppa) Regional Results Mt. Morris DeKalb Erie -yr -yr IST Yield Mst % Erect Yield Mst Yield Mst Yield 4 Mst Ldg Avg. Avg. GT RM bu/a % Plants bu/a % bu/a % bu/a % Scr bu/a bu/a ASGROW RX668RR/YGCB PL, CB ASGROW RX75RR/YGCB..... PL, CB ASGROW RX75RR/YGPL..... PL, CR BURRUS 447RWR...PL, RW BURRUS 48HL...PL BURRUS 49S...PL, CB BURRUS 54...PL BURRUS 57RWR...RW BURRUS 644RWR...PL,RW CORNELIUS C447RWRR PL, RW CORNELIUS C54RR PL CORNELIUS C547RWRR PL, RW CORNELIUS C560HX PL, HX CORNELIUS C59YGPL PL, CR CORNELIUS C598RW PL, RW CORNELIUS C66YGPL PL, CR CORNELIUS C684RRYG PL, CB CROWS 4S...CL, CB CROWS 484X...CL, CR DAIRYLAND STEALTH PL DAIRYLAND STEALTH PL, CB DAIRYLAND STEALTH PL DAIRYLAND STEALTH PL DEKALB DKC57-79 (RR/YGPL) PL, CR DEKALB DKC6-68 (RR/YGRW) PL, RW DEKALB DKC6-9 (RR/YGPL) PL, CR DERAEDT DYNA-GRO 55B65...PL, CR DYNA-GRO 56P...PL, CB DYNA-GRO 57P8...PL, CB FARM ADVANTAGE CL, HX FARM ADVANTAGE 96L CL, CB GOLDEN HARVEST H CL GOLDEN HARVEST H CL GOLDEN HARVEST H-905 HX CL, HX HUGHES 540 R+...PL, CR HUGHES 578 R+...PL, CR HUGHES 66 R+...PL, CR HUGHES 695 R+...PL, CR HUGHES 7 R+...PL, CR HUGHES 7745 CB...CB HUGHES 787 CBL PL, CB ICORN 04.C7...CL ICORN 08.B5...CL, CB ICORN 08.RWB CL, CR ICORN 08.RWBR CL, CR ICORN 09.BR4...CL, CB ICORN 0.RWB CL, CR M M M ICORN.RWB CL, CR JUNG 4587 YGCB PL, CB JUNG 74 YGCB PL, CB JUNG 77 RR/YGPL PL, CR Insecticide Seed Treatment: Cl = Cruiser low rate, CH = Cruiser hi rate, Gl = Gaucho low rate, GH = Gaucho hi rate, PL = Poncho 50, PH = Poncho 50 TM The Erie location was struck by a very unusual windstorm on July 9, 006. Wind damage was not uniform across even e few acres in is trial. So while hybrids surely differed in eir ability to stand under ese conditions, it's possible at some just were "unlucky" in having all ree of eir plots (reps) in locations at got more wind. If we could not be confident at performance of an individual hybrid was fairly assessed (for example, if two of ree reps happened to be in e most-damaged area and e ird stood and yielded well), an we have designated e data as Missing (M). We elected not to use e data from Erie in e regional average due to is unique problem, and e "M" data will be provided to e company at entered at hybrid 4 Lodging score: 0 = Less an 0% of plants lodged - 9 = greater an 90% of plants lodged. 9

11 006 Hybrid Corn Test Results: Nor Region (,000 ppa) Regional Results Mt. Morris DeKalb Erie -yr -yr IST Yield Mst % Erect Yield Mst Yield Mst Yield 4 Mst Ldg Avg. Avg. GT RM bu/a % Plants bu/a % bu/a % bu/a % Scr bu/a bu/a KALTENBERG K657RRPLUS PH, CR KALTENBERG K74LBT PH, CB KALTENBERG K755BT PH, CB KRUGER PL KRUGER CL KRUGER PL KRUGER CL KRUGER CL KRUGER 050A...PL KRUGER 050B...PL KRUGER 0605B...CL KRUGER PL KRUGER 06...PL KRUGER CL KRUGER 606RR...PL KRUGER 05RR/YGCB PL, CB KRUGER 44RR/YGCB PL, CB KRUGER 506RR/YGCB CL, CB KRUGER 509BTLL CL, CB KRUGER 50YGCB PL, CB M M M KRUGER 5YGCB CL, CB KRUGER 5406BTLL PL, CB KRUGER 5407BTLL CL, CB KRUGER 546YGCB CL, CB KRUGER 5504YGCB CL, CB KRUGER 5505YGCB CL, CB KRUGER 554YGCB CL, CB M M M 5 KRUGER 650TS...CL, CR KRUGER 66TS...PL, CR KRUGER 66TS...PL, CR KRUGER 76YG PL, CR KRUGER 8508HX...PL, HX KRUGER 9YGCB CL, CB KRUGER 9TS...CL, CR KRUGER 90TS...CL, CR KRUGER 9RR/YGCB CL, CB KRUGER 9407TS...CL, CR LASER L-8H5 RW CL, RW LASER L-8H RR CL LASER L-8H59 BT CL, CB LASER L-9H9 BT CL, CB LEGACY L-5505 RRBT CB LEGACY L LEGACY L-677 BT CB LEGACY LT-5...CB LG LG540RW...PL, RW LG LG545BT...CB MERSCHMAN M-504B PL, CB MERSCHMAN M-508C PL, CB MERSCHMAN M-509A PL, CR M M M 06 MERSCHMAN M-5C PL, CB MERSCHMAN M-606A PL, RW Insecticide Seed Treatment: Cl = Cruiser low rate, CH = Cruiser hi rate, Gl = Gaucho low rate, GH = Gaucho hi rate, PL = Poncho 50, PH = Poncho 50 TM The Erie location was struck by a very unusual windstorm on July 9, 006. Wind damage was not uniform across even e few acres in is trial. So while hybrids surely differed in eir ability to stand under ese conditions, it's possible at some just were "unlucky" in having all ree of eir plots (reps) in locations at got more wind. If we could not be confident at performance of an individual hybrid was fairly assessed (for example, if two of ree reps happened to be in e most-damaged area and e ird stood and yielded well), an we have designated e data as Missing (M). We elected not to use e data from Erie in e regional average due to is unique problem, and e "M" data will be provided to e company at entered at hybrid 4 Lodging score: 0 = Less an 0% of plants lodged - 9 = greater an 90% of plants lodged. 0

12 006 Hybrid Corn Test Results: Nor Region (,000 ppa) Regional Results Mt. Morris DeKalb Erie -yr -yr IST Yield Mst % Erect Yield Mst Yield Mst Yield 4 Mst Ldg Avg. Avg. GT RM bu/a % Plants bu/a % bu/a % bu/a % Scr bu/a bu/a MERSCHMAN M-60F PL, CR MERSCHMAN M-6D PL, CB MIDWEST 767S...CL,CB MIDWEST 774X...CL,CR MILLER M57-5H CL, HX MILLER M58-54B CL, CB PARTNERS BRAND 60 CR PL, CR PARTNERS BRAND 66 RRCR PL, CR PIONEER D...PH, HX PIONEER 4A8...PL, HE PIONEER 4P89...PH, HX PIONEER 5A...PH, HX PIONEER 5D6...PH, HX PRAIRIE PRAIRIE PRAIRIE PRAIRIE PREMIUM P RENK RK789RRYGPL CL, CR RENK RK806...CL RENK RK854YGCB CL, CB RENK RK870RRYGPL CL, CR RENK RK888YGCB CL, CB ROESCHLEY RX CB PL, CB ROESCHLEY RX 78 BT PL, CB ROESCHLEY RX 407 CB PL, CB ROESCHLEY RX 48 BT PL, CB SIEBEN 675YGRW/RR PL, RW SIEBEN 476YGCB/RR CB STEYER H PL STEYER H 78 RRYGCRW PL, CR STEYER H 8770YGCB PL, CB TRELAY 6N664...PL, CB TRELAY 7N69...PL, CB TRELAY 7P67...PL TRELAY 8K9...PL TRISLER T-850RRCB PL, CB TRISLER T-50PLRR PL, CR TRISLER T-567CB PL, CB TRISLER T-57PLRR PL, CR M M M 97 VIGORO V50Y5...CL, CB VIGORO V5YR CL, CB WHATA WHATA WHATA WHATA WHATA PL WHATA Average L.S.D 5% Level CV (%) Insecticide Seed Treatment: Cl = Cruiser low rate, CH = Cruiser hi rate, Gl = Gaucho low rate, GH = Gaucho hi rate, PL = Poncho 50, PH = Poncho 50 TM The Erie location was struck by a very unusual windstorm on July 9, 006. Wind damage was not uniform across even e few acres in is trial. So while hybrids surely differed in eir ability to stand under ese conditions, it's possible at some just were "unlucky" in having all ree of eir plots (reps) in locations at got more wind. If we could not be confident at performance of an individual hybrid was fairly assessed (for example, if two of ree reps happened to be in e most-damaged area and e ird stood and yielded well), an we have designated e data as Missing (M). We elected not to use e data from Erie in e regional average due to is unique problem, and e "M" data will be provided to e company at entered at hybrid 4 Lodging score: 0 = Less an 0% of plants lodged - 9 = greater an 90% of plants lodged.

13 006 Hybrid Corn Test Results: West Central Region (,000 ppa) Regional Results Monmou Perry New Berlin -yr -yr IST Yield Mst % Erect Yield Mst Yield Mst Yield Mst Avg. Avg. GT RM bu/a % Plants bu/a % bu/a % bu/a % bu/a bu/a ADRAIN AX4CB PH, CB ASGROW RX668RR/YGCB PL, CB ASGROW RX674RR PL ASGROW RX75RR/YGCB..... PL, CB ASGROW RX785RR/YGCB..... PL, CB BIO GENE BG PL BIO GENE BG 8N PL BIO GENE LL/HX PL, HX BURRUS 450P...PL, CR BURRUS 48HL...PL BURRUS 49S...PL, CB BURRUS 57RWR...RW BURRUS 644RWR...PL,RW BURRUS 685S...PL, CB CROWS 484X...CL, CR CROWS 498X...CL, CR CROWS 576S...CL,CB CROWS 56R...CL DAIRYLAND STEALTH PL DAIRYLAND STEALTH PL, RW DAIRYLAND STEALTH PL, CB DAIRYLAND STEALTH PL, CB DEKALB DKC57-79 (RR/YGPL) PL, CR DEKALB DKC6-68 (RR/YGRW) PL, RW DEKALB DKC6-9 (RR/YGPL) PL, CR DEKALB DKC64- (RR/YGRW) PL, RW DYNA-GRO 57F06...PL, CB DYNA-GRO 57F7...PL, CB DYNA-GRO 57P6...PL, CB GOLDEN HARVEST H CL GOLDEN HARVEST H CL GOLDEN HARVEST H-905 HX CL, HX HOBLIT 476 BT...PL, CB HOBLIT 4876 YG PL, CR HOBLIT 575 RW/RR PL, RW HOBLIT 5677 T...PL, RW HORIZON 69B0*...PL, CB HORIZON 69P0*...PL, CR HORIZON 69P05*...PL, CR HORIZON 69W0R PL, RW HORIZON 7B0C...PL, CB HORIZON 7H0LR PL, HX HORIZON PL, CB HORIZON 7PR...PL, CR HORIZON 7WR PL, RW HORIZON PL, CB HORIZON 76P0R...PL, CR ICORN 08.B5...CL, CB ICORN 08.RWB CL, CR ICORN 08.RWBR CL, CR ICORN 09.BR4...CL, CB ICORN 0.RWB CL, CR ICORN.RWB CL, CR ICORN 4.B...CL, CB Insecticide Seed Treatment: Cl = Cruiser low rate, CH = Cruiser hi rate, Gl = Gaucho low rate, GH = Gaucho hi rate, PL = Poncho 50, PH = Poncho 50 TM

14 006 Hybrid Corn Test Results: West Central Region (,000 ppa) Regional Results Monmou Perry New Berlin -yr -yr IST Yield Mst % Erect Yield Mst Yield Mst Yield Mst Avg. Avg. GT RM bu/a % Plants bu/a % bu/a % bu/a % bu/a bu/a KRUGER PL KRUGER 05...PL KRUGER 0...PL KRUGER CL KRUGER CL KRUGER PL KRUGER PL KRUGER 06...PL KRUGER CL KRUGER 44RR/YGCB PL, CB KRUGER 5RR/YGCB PL, CB KRUGER 57RR/YGCB CL, CB KRUGER 5YGCB CL, CB KRUGER 55BTLLA CL, CB KRUGER 55BTLLB CL, CB KRUGER 546YGCB CL, CB KRUGER 55BTLL CL, CB KRUGER 554YGCB CL, CB KRUGER 66TS...PL, CR KRUGER 66TS...PL, CR KRUGER 76YG PL, CR KRUGER 8508HX...PL, HX KRUGER 9YGCB CL, CB KRUGER 9TS...CL, CR KRUGER 90TS...CL, CR KRUGER 9RR/YGCB CL, CB KRUGER 9407TS...CL, CR LASER L-8H5 RW CL, RW LASER L-8H RR CL LASER L-8H59 BT CL, CB LASER L-9H6 BT CL, CB LASER L-9H9 BT CL, CB LEWIS 4567 CB/RR PL, CB LEWIS 4886 PL...PL, CR LEWIS 4956 HX...PL HX LEWIS 545 CB...PL, CB LEWIS 54 CB...PL, CB LEWIS 5567 CB/RR PL, CB LEWIS 5997 PL/RR PL, CR LEWIS 7095 PL/RR PL, CR LG LG65BT...CB LG LG640BT...CB MERSCHMAN M-4A PL, CR MERSCHMAN M-508C PL, CB MERSCHMAN M-509A PL, CB MERSCHMAN M-5C PL, CB MERSCHMAN M-6D PL, CB MERSCHMAN M-6B PL, CB MERSCHMAN M-7E PL, CB MIDWEST 774X...CL,CR MIDWEST 78X...CL, CR MIDWEST 800S...CL, CB MIDWEST 80R...CL MUNSON PL, HX Insecticide Seed Treatment: Cl = Cruiser low rate, CH = Cruiser hi rate, Gl = Gaucho low rate, GH = Gaucho hi rate, PL = Poncho 50, PH = Poncho 50 TM

15 006 Hybrid Corn Test Results: West Central Region (,000 ppa) Regional Results Monmou Perry New Berlin -yr -yr IST Yield Mst % Erect Yield Mst Yield Mst Yield Mst Avg. Avg. GT RM bu/a % Plants bu/a % bu/a % bu/a % bu/a bu/a MUNSON 5...PL, CR MUNSON PL, CR MUNSON 88RR PL, CB MUNSON 90RR PL, CR MUNSON M06RR PL, CR PIONEER A87...PH, HX PIONEER D...PH, HX PIONEER N...PH, HX PIONEER 4A8...PL, HE PREMIUM P QUALITY PLUS Q YGCB/RR..... PL, CB QUALITY PLUS Q YGCB PL, CB QUALITY PLUS Q 4 YGCB PL, CB QUALITY PLUS Q 50 YGPL PL, CR QUALITY PLUS Q 5 YGPL/RR..... PL, CR QUALITY PLUS Q 65 YGPL/RR..... PL, CR SIEBEN 476YGCB/RR CB SIEBEN 4746YGCB/RR CB SIEBEN 874YGPL/RR PL, CR STONE HC 7R PL STONE HC 8K PL, RW STONE HC 8R PL TRISLER T-57RRCB PL, CB TRISLER T-575PL PL, CR TRISLER T-59PLRR PL, CR TRISLER T-5CB PL, CB TRISLER T-540CB PL,CB TRISLER T-545CB PL, CB TRISLER T-57PLRR PL, CR TRITON PL, HX UNITY 09 YGRW PL, RW UNITY RR/YGCB PH, CB VIGORO V50Y5...CL, CB VIGORO V5YR CL, CB VIGORO V5Y6...CL, CB VIGORO V CL VIGORO V54Y6...CL, CB WILLCROSS 096 RRCB PL, CB WILLCROSS 07X5 CB PL, CB WILLCROSS 7X CB PL, CB WILLCROSS 7X CB PL, CB Average L.S.D 5% Level CV (%) Insecticide Seed Treatment: Cl = Cruiser low rate, CH = Cruiser hi rate, Gl = Gaucho low rate, GH = Gaucho hi rate, PL = Poncho 50, PH = Poncho 50 TM 4

16 006 Hybrid Corn Test Results: East Central Region (,000 ppa) Regional Results Dwight Goodfield Urbana -yr -yr IST Yield Mst % Erect Yield Mst Yield Mst Yield Mst Avg. Avg. GT RM bu/a % Plants bu/a % bu/a % bu/a % bu/a bu/a ADRAIN AX4CB PH, CB AGVENTURE 844 RCB PL, CB ASGROW RX668RR/YGCB PL, CB ASGROW RX674RR PL ASGROW RX75RR/YGCB..... PL, CB ASGROW RX785RR/YGCB..... PL, CB BECK 544RR...PL, CB BECK 546CBRWRR PL, CR BECK 5444RWRR PL, RW BECK 5507CBRWRR PL, CR BECK 566CBRWRR PL, CR BECK 586CBRR PL, CB BECK 5959RW...PL, RW BECK 697RW...PL, RW BECK 67CBRWRR PL, CR BO-JAC PL BURRUS 447RWR...PL, RW BURRUS 450P...PL, CR BURRUS 57RWR...RW BURRUS 644RWR...PL,RW BURRUS 685S...PL, CB CORN BELT X58 YGPL/RR..... PL, CR CORN BELT X587 BT CB CROWS 484X...CL, CR CROWS 498X...CL, CR CROWS 576S...CL,CB CROWS 56R...CL DAIRYLAND DST74BT PL, HX DAIRYLAND STEALTH PL, RW DAIRYLAND STEALTH PL, CB DAIRYLAND STEALTH PL, CB DAIRYLAND STEALTH PL, CR DEKALB DKC57-79 (RR/YGPL) PL, CR DEKALB DKC6-68 (RR/YGRW) PL, RW DEKALB DKC6-9 (RR/YGPL) PL, CR DEKALB DKC64- (RR/YGRW) PL, RW DYNA-GRO 55B65...PL, CR DYNA-GRO 57F06...PL, CB DYNA-GRO 57F7...PL, CB GOLDEN HARVEST H CL GOLDEN HARVEST H CL HOBLIT 476 BT...PL, CB HOBLIT 4876 YG PL, CR HOBLIT 575 RW/RR PL, RW HOBLIT 5677 T...PL, RW HORIZON 67B0*...PL, CB HORIZON 68P0*...PL, CR HORIZON 68T0L...PL, CB HORIZON 69P0*...PL, CR HORIZON 69W0R PL, RW HORIZON 70B0*...PL, CB HORIZON PL, CR HORIZON 75...PL, CB HORIZON 77...PL, CB Insecticide Seed Treatment: Cl = Cruiser low rate, CH = Cruiser hi rate, Gl = Gaucho low rate, GH = Gaucho hi rate, PL = Poncho 50, PH = Poncho 50 TM 5

17 006 Hybrid Corn Test Results: East Central Region (,000 ppa) Regional Results Dwight Goodfield Urbana -yr -yr IST Yield Mst % Erect Yield Mst Yield Mst Yield Mst Avg. Avg. GT RM bu/a % Plants bu/a % bu/a % bu/a % bu/a bu/a HORIZON PL, CB HORIZON PL, HX HORIZON 7P*...PL, CR HORIZON PL, CB HUBNER H445 BL PL, CB HUBNER H4440 CB PL, CB HUBNER H455 CB PL, CB HUBNER H4677 CB PL, CB HUBNER H5808 PL PL, CR ICORN 08.B5...CL, CB ICORN 08.RWB CL, CR ICORN 08.RWBR CL, CR ICORN 09.BR4...CL, CB ICORN 0.RWB CL, CR ICORN.RWB CL, CR ICORN 4.B...CL, CB ICORN 5.RWBR CL, CR KRUGER PL KRUGER 05...PL KRUGER 0...PL KRUGER CL KRUGER CL KRUGER PL KRUGER PL KRUGER 06...PL KRUGER CL KRUGER 44RR/YGCB PL, CB KRUGER 5RR/YGCB PL, CB KRUGER 57RR/YGCB CL, CB KRUGER 5YGCB CL, CB KRUGER 55BTLLA CL, CB KRUGER 55BTLLB CL, CB KRUGER 546YGCB CL, CB KRUGER 55BTLL CL, CB KRUGER 554YGCB CL, CB KRUGER 66TS...PL, CR KRUGER 66TS...PL, CR KRUGER 76YG PL, CR KRUGER 8508HX...PL, HX KRUGER 9YGCB CL, CB KRUGER 9TS...CL, CR KRUGER 90TS...CL, CR KRUGER 9RR/YGCB CL, CB KRUGER 9407TS...CL, CR LASER L-8H5 RW CL, RW LASER L-8H RR CL LASER L-8H59 BT CL, CB LASER L-9H6 BT CL, CB LASER L-9H9 BT CL, CB LEWIS 4576 RW/RR PL, RW LEWIS 4886 PL...PL, CR LEWIS 545 CB...PL, CB LEWIS 5997 PL/RR PL, CR LEWIS 7095 PL/RR PL, CR Insecticide Seed Treatment: Cl = Cruiser low rate, CH = Cruiser hi rate, Gl = Gaucho low rate, GH = Gaucho hi rate, PL = Poncho 50, PH = Poncho 50 TM 6