2007 Kentucky Hybrid Corn Performance Test

Transcription

1 PR Kentucky Hybrid Corn Performance Test W.L. Pearce, R.W. Curd, and C.D. Lee, Plant and Soil Sciences The objective of the Kentucky Hybrid Corn Performance Test is to provide performance estimates of hybrid seed corn sold in Kentucky. The test has been conducted in an unbiased manner according to accepted agronomic practices. Presentation of Data Complete 20 data is presented for the tests across all locations and the tests at each location. Two-and three-year averages for yield are included in each of the single location tables. Tables that include data over multiple years and/or multiple locations provide better indication of hybrid performance. The multiple location tables are listed on page 1. If individual location data is used it should be in combination with a multiple location average. These tables present better estimates of hybrid yield ability than data gathered at one location in one year. Comparisons between yields and other characters of any two or more hybrids should be made only with data from one table at a time. Hybrids are grouped into Early, Medium, Late, White, and Ethanol tests based on relative maturity or trait characteristic. Hybrids that yield equally as high as the highest yielding hybrid, based on statistical evaluation, are indicated by an asterisk. See the hybrid comparisons and the experimental design and means comparisons text sections for more detail. Testing Procedure Selection of Hybrids The hybrids chosen for testing are those most likely to be available for sale in Seed of each commercial hybrid (Table 2) was obtained from the sponsoring company. Each company defined the maturity of their hybrids and was given the opportunity to identify the proper tests for their hybrids. Location of Tests The map on page 1 shows the test locations. The test sites were selected to represent different agroclimatic areas of Kentucky where corn is a major commodity. Cultural Practices Corn seed was planted no-till into soybean stubble at all locations except Quicksand, where corn was planted no-till into wheat cover crop stubble. Fertilizer was applied as indicated by soil tests. All test areas were treated with herbicide(s) and insecticide(s) and were supplemented by post-emergence herbicide when necessary. Force insecticide was applied in the row at planting to control corn rootworms. Cultural treatment for each location and notes about the growing season are provided. List of Tables Locations of the 20 Hybrid Corn Performance Test Table 1. Precipitation at Test Locations 20. Table 2. Hybrids Tested in 20. Table 3. Early Hybrids: Annual, Two-Year, and Three-Year Summary, All Locations. Table 4. Medium Hybrids: Annual, Two-Year, and Three-Year Summary, All Locations. Table 5. Late Hybrids: Annual and Two-Year Summary, All Locations. Table 6. Table 7. White Hybrids: Annual, Two-Year, and Three-Year Summary, Five Locations. Omitted. 5 6 Table 8. Yield Summary, LaCenter, Early, Medium, Late, and White Hybrids, (map position 1). Table 9. Yield Summary, Princeton, Early, Medium, Late, and White Hybrids, (map position 2). 3 Table 10. Yield Summary, Waverly, Early, Medium, Late, and White Hybrids, (map position 3). 1 2 Table 11. Yield Summary, Russellville, Early, Medium, Late, and White Hybrids, (map position 4). 4 Table 12. Yield Summary, Brandenburg, Early, Medium, Late, and White Hybrids, (map position 5). Table 13. Yield Summary, Lexington, Early, Medium, Late, and White Hybrids, (map position 6). Table 14. Yield Summary, Quicksand, Early, Medium, and Late Hybrids, (map position 7). Table 15. Ethanol Hybrids: Annual and Two-Year Summary All Locations. 7 Web site: Kentucky Agricultural Experiment Station University of Kentucky College of Agriculture Department of Plant and Soil Sciences Lexington, Kentucky 40546

2 Experimental Design and Mean Comparisons Each hybrid was grown in three replications at each location to sample uncontrollable variability within the field. Annual mean yields presented in the tables are averages of three replications at the test site; 2-year and 3-year means are averages of six and nine replications, respectively. A randomized complete block (RCB) design was used for each maturity group test at each location. These tests are designed to predict yield ability. Slight differences in yield ability can occur as a result of variability in the field. The least significant difference (LSD) is used to account for that variability and to help determine significant differences between hybrid performances. Consider the following example: Hybrid... Yield (bu/acre) A B C LSD (0.10) The yield difference between Hybrid A and Hybrid B is 10 bu/acre ( = 10). The difference is less than the LSD (12 bu/acre). Based on the LSD, the yield difference between hybrids A and B is not significant. Hybrids A and B have the same yield in this test. However, the yield difference between hybrids A and C is 25 bu/acre ( = 25), which is greater than the LSD (12 bu/acre). Based on the LSD, Hybrid A yielded more than Hybrid C in this test. The LSD occurs at the bottom of each table. Yields that are less than the LSD are not significantly different from each other. The notation N.S. in the tables indicates that no statistically significant differences were determined. An asterisk has been placed alongside yields that are not significantly different from the highest yield mean in that column. In addition, the tables are sorted from greatest yield to least yield. The C.V. is a calculated value that helps indicate unexplained variation. A smaller C.V. indicates less unexplained variation and more precise results. Planting All plots were planted with a John Deere Maxi-Emerge vacuum, two-row, no-till planter modified for small plot work. Modified planting cones replaced the planter boxes and allowed placement of a specified number of kernels per plot. Hybrid seed was planted into plots consisting of two rows 30 inches apart and 22 feet long. Hybrid seed was planted at 40 seeds per row for each plot. When seedlings were 12 to 18 inches tall, the stands were thinned to 35 plants per row equaling 28,000 plants per acre. Harvesting All plots were harvested with a Massey Ferguson MF 8-XP two-row corn combine. Both rows of each two-row plot were harvested. The grain weight, moisture content, and test weight of corn from each plot was measured with an electronic scale and moisture meter mounted on the combine. Yields were calculated for grain at 56 pounds per bushel and adjusted to 15.5 percent moisture. The test weight reported in each annual table for any hybrid is not corrected for harvest moisture and is reported at the moisture content for that hybrid listed in that table. Dropped ears were not gleaned from the plots. The total number of lodged plants was recorded at harvest. Also at harvest, selected plots were observed to indicate apparent European corn borer damage by counting the number of broken tops per plot, according to a protocol by Dr. Rick Bessin, Department of Entomology, University of Kentucky. Corn borer damage was minor at all locations. In general, Bt hybrids had less apparent corn borer damage than non-bt hybrids. Hybrid Comparisons The Kentucky Hybrid Corn Performance Test is divided into five tests: Early, Medium, and Late maturities, and White and Ethanol hybrids. These divisions provide evaluations of the hybrid groups without competition biases. The divisions do not allow for comparisons across groups. For example, a hybrid in the Early test cannot be compared to a hybrid in the Late or Ethanol test. The Early, Medium, Late, and White tests were grown at all seven locations for a total of 28 tests. The Ethanol tests were grown at four locations. The Early maturity hybrid group in Table 4E and all subsequent E tables includes those hybrids rated by the parent seed company to mature in 112 days or earlier. The Medium maturity hybrid group in Table 4M and all subsequent M tables includes those hybrids rated by the parent seed company to mature in days. The Late maturity hybrid group in Table 4L and all subsequent L tables includes those hybrids rated by the parent seed company to mature in 118 days or later. The White hybrid group in Table 4W and all subsequent W tables includes those hybrids with a white seed coat that are rated by the parent seed company to mature in 112 to 118 days. The Ethanol group in Table 15 includes those hybrids higher in extractable starch content. Open-pedigree hybrids of known maturity were included in each Early, Medium, and Late test to provide an internal evaluation of hybrid maturity. The seed of these hybrids was obtained from Illinois Foundation Seeds, Inc., at Champaign, Illinois. 2

3 Grain moisture of hybrids in the Early, Medium, and Late tests should be within the LSD of the check hybrid grain moisture for that test. Hybrids with grain moisture above the LSD of the check hybrid likely belong in a later-maturing test. Each hybrid is placed in the Early, Medium, or Late tests based on the hybrid maturity defined by the company. Notes about the 20 growing season are next to each locations data tables. Chemical Analysis of the Early, Medium, Late, White, and Ethanol Tests Grain chemical composition was measured from one replication of each Early, Medium, Late, and White maturity test at each location. These samples were analyzed by the Kentucky Grain Quality Laboratory at Lexington using NIRS. The NIRS analysis, which provided evaluation of protein, starch, and oil, is presented in Table 15 for grain at 0 percent moisture. Since grain used in feed rations contains moisture, the composition variables provided in Table 15 should possibly be used at a moisture content that is different than 0 percent. A suitable moisture level in most feed rations is 15 percent. To covert to 15 percent moisture, multiply the values in Tables 8 or 15 by For any other moisture content, multiply the values by (100 percent moisture)/100. The Ethanol entries were hand pollinated at the Lexington location in a separate nursery. This seed from the nursery was harvested, shelled, packaged, and sent to the IPG Lab in Champaign, Illinois, for analysis. The results of the Ethanol are reported in gallons per bushel along with protein oil and starch. The chemical composition data in tables 7E, 7M, 7L and 7W will be omitted from the progress report at this time. We did not believe that the data was representative of the corn hybrids in these four tests. We will try to have a sample of each hybrid analyzed again and that data will be published online at a future date. Ethanol Tests Thirty-two entries were accepted in the new Ethanol test. This test was planted at four locations with three reps per location. This test were in two-row plots. Hand pollinations on two replications were done in a separate nursery at the Lexington location. This seed was then mixed together and a 4-pound sample was sent to the IPG lab in Champaign, Illinois. Acknowledgments The authors sincerely appreciate efforts of the Kentucky Corn Growers Association in helping upgrade equipment. A Massey Ferguson MF 8-XP combine was leased to the corn project at minimal cost by the Kentucky Corn Promotion Council of the Kentucky Corn Growers Association. This combine contributes to improved accuracy of the data. The Corn Growers Association helped buy a new single high-capacity weighing system for the Massey MF 8-XP combine. This new system will help provide more accurate data for the farming community. The authors are grateful to Dr. Michael Montross, Wei Chen, Research Analyst, and the Kentucky Corn Growers Association for the Grain Quality Laboratory, which processed more than 1,000 grain samples. The authors are grateful to the following farmer-cooperators, who not only provided land for testing but helped with the tests throughout the growing season: Lynn Denton and family of LaCenter, Johnny Dawson and family of Russellville, Jeff McGehee and family of Brandenburg, and Tim Thomas and family of Waverly. The authors acknowledge the statistical and programming support of Dr. Paul L. Cornelius and Danny Walls of the Plant and Soil Sciences Department and give special thanks to Ted Walker and the entire crew of the College of Ag Farm Shop for keeping us going year-round. Additional acknowledgements are made to the following people who helped conduct this year s performance test: Richard C. Green, Research Technician, Department of Agronomy, Lexington Andy Brice, Wes Lawrence, and Kevin Edelman, and Amanda Whittington, Student Workers, Department of Agronomy, Lexington Charles Toll, Farmer, Lawrenceburg Dr. James Herbek, Extension Specialist in Grain Crops, Research and Extension Center, Princeton Donnie Davis, Superintendent, and Joe Williams, Farm Manager, Research and Education Center, Princeton David Ditsch, Superintendent, and Wade Turner, Farm Manager, Robinson Substation, Quicksand Tom Miller, Extension Agent, Ballard County Chris Milam, Extension Agent, Logan County Rankin Powell, Extension Agent, Union County Andy Mills, Extension Agent, Meade County Eugene Lacefield, Research Specialist, Plant and Soil Sciences Roger Rhodes, Technician, Plant and Soil Sciences Note: The Grain Quality Laboratory is a service provided by the University of Kentucky with funding from the Kentucky Corn Growers Association. 3

4 Table 1. Precipitation at Test Locations, 20. Location Month Days LaCenter Princeton Union Brandenberg Lexington Quicksand Russellville April * * * * 1.14* Total May * 0.69* Total June Total July Total August Total Sept ** 0.00** 0.00** 0.00** ** Total Grand Total * Planted. ** Harvested in September; all others harvested in October. 4

5 Table 2. Hybrids Tested In 20. Company Hybrid Trait 1 Test 2 Color 3 CRM 4 Agrigold AgriGold Hybrids RR #1 Box 203 St. Francisville, IL Augusta Augusta Seeds Corp. 473 Tisdale Farm Lane Staunton, VA Beck's Beck s Hybrid 6767 E 276 Street Atlanta, IN Bo-Jac/Triton Bo-Jac Seed Co th Ave Mt. Pulaski, IL Caverndale Caverndale Farms, Inc 1921 Bluegrass Pike Danville, KY Croplan Genetics Croplan Genetics P.O. Box St. Paul, MN Crows Crows Hybrid Corn Co. P.O. Box 157 Kentland, IN Dairyland Stealth Dairyland Seed P.O. Box 958 West Bend, WI Dyna-Gro Dyna-Gro UAP 1267 W. Washington Pittsfield, IL Exsegen Miles Seeds P.O. Box Owensboro, KY Fielders Choice Grow Direct Inc. 306 N. Main St Monticello, IN A6455 BTRR E Y 110 A6459 BT E Y 110 A6474 BTRR E Y 111 A6479 BTRR E/ETH Y 112 A6497 RWRR E Y 112 A6522 BT M Y 113 A6494 BTRR M Y 114 A6596 HX M Y 115 A6622 HX M/ETH Y 115 A6633 BTRR M Y 115 A6639 VT3 M Y 116 A6537 W W 113 A6587W W W 114 A6567W W W 114 A6637W W W HXP E Y P E Y BTP E Y CB E Y HX M Y M Y CBP M Y CBP M Y L Y HXP L Y L Y L Y HX L Y CBRWRR E Y CBRWRR E Y CBRR M Y CBRWRR M/ETH Y M Y CBRRR ETH Y 9527 M Y 113 CF804 RR2 E Y 110 CF823 RR2/YGCB E Y CF884 M Y 116 CF895 RR2/YGCB M Y TS E Y RB M Y TS M Y RH M Y RR M Y RB M Y RB ETH Y 751 TS ETH 4846 T E/ETH Y T E Y S M/ETH Y B M Y RR E Y RR E Y BT/RR E Y BT/RR E Y BT/RR/CRW E Y RR M Y BT/RR M Y B15 E Y F37 M Y B90 M Y 115 CX815 M Y 115 ES414 M/ ETH Y 113 ES112 ETH NG6795 E Y WPR M Y B M Y WPR M Y 113 NG6810 M Y 113 NG6832 M Y 113 Table 2. Hybrids Tested In 20. Company Hybrid Trait 1 Test 2 Color 3 CRM 4 Garst Garst Seed Co th Street P.O. Box IT E/ETH Y CB/LL/GT M Y CB/LL/ M/ETH Y YG1/RR L Y 118 Gateway 6816 M Y 113 Great Lakes Great Lakes Hybrids 9915 W M21 Ovid, MI LG Seeds LG Seeds Shissler Road Elmwood, IL Miles Seed Wyffels Hybrids Inc US Highway 6 Geneseo, IL Monsanto: Dekalb Monsanto 800 N. Lindbergh Blvd. St. Louis, MO Mycogen Mycogen Seeds 2221 Lone Oak Rd Paducah, KY NK Brand Syngenta Seeds P.O. Box 959 Minniapolis, MN Pioneer Pioneer Hi-Bred International, Inc Memorial Pkwy SW, Suite205 Huntsville, AL Seed Consultants Seed Consultants Inc. P.O. Box 370 Washington C.H., OH BTRR M Y HX M Y 113 LG2600 BT E Y 111 LG2552 BT E Y 111 LG2590 BTRWRR E Y 111 LG2614 BT E/ETH Y 112 LG2640 BT M/ETH Y 113 W5286 YGRW/RR2 E Y 1 W7133 AGRISURE E Y 111 CB/LL W7387 YGCB/RR2 E/ETH Y 112 W7645 HX1/LL E Y 112 W8257 YGCB/RR2 M Y 113 W8368 AGRISURECB/ M Y 114 LL/C W86 YGCB/RR2 M Y 114 W8721 RR2 M Y 114 W9127 VT3 M Y 114 W603 YGCB ETH Y RX715 VT3 E Y 112 DKC58-16 VT3 E Y 112 DKC61-45 RR2/YGCB E Y 112 DKC61-73 RR2/YGCB E/ETH Y 112 DKC63-42 VT3 M Y 113 DKC63-46 RR2/YGCB M Y 113 DKC63-74 RR2/YGPL M Y 113 DKC64-78 RR2/YGCB M/ETH Y 113 DKC65-47 RR2 M Y 113 DKC67-23 RR2/YGCB M Y 113 DKC67-87 RR2 M Y 113 DKC69-68 RR2/YGRW L Y 118 DKC69-43 RR2 L Y 118 2C727 E Y 112 2A765 M/ETH Y 113 2T780 M Y 114 2T783 ETH N72-Q6 CB/LL E/ETH Y 111 N68-B8 CB/LL E/ETH Y 111 N75-A4 CB/LL M Y 113 N76-D3 CB/LL M Y A17 HX1/LL/RR2 E Y N55 RR2 E Y F85 RR2 M Y N58 HX1/LL/RR2 M Y R81 YGCB/RR2 M Y M57 HX1/LL/RR2 M Y D58 L Y P41 L/ETH Y D61 YGCB/RR2 L/ETH Y G71 HX1/LL/RR2 L Y G58 W W V62 W W B10 W W R38 W W 117 SC10MT97 E Y 1 SC10BL96 E Y 108 SC11BL E Y 109 SC11HR17 E Y 109 SC11MT16 E Y 109 SC11RR28 E Y 110 SCMT27 E Y 111 SC11RR58 M Y 114 SC11MT45 M/ETH Y 114 SC11RR56 M Y 114 SC11B65 M Y 116 SC11MT77 M Y 117 SC11H76 M Y 117 SC11BR97 L Y 118 SC11BR57 L Y 118 SC12BR08 L Y 119 SC11MT27 ETH Y 5

6 Table 2. Hybrids Tested In 20. Company Hybrid Trait 1 Test 2 Color 3 CRM 4 Southern States Southern States Corp West Broad Street Richmond, VA SS647 RR2,YGCB E Y 111 SS661VT3 E Y 112 SS731 CL M Y 114 SS746 RR2,YGCB M/ETH Y 115 SS783 RR2/YGCB M/ETH Y 116 Steyer Seeds Steyer Seeds 6154 No. Co. Rd. 33 Tiffin, OH Trisler Seeds, Inc. Trisler Seed Farms Inc E 800 North Rd. Fairmount, IL Vigoro Seeds Vigoro Seeds Crop Production Services P.O. Box 1467 Gatesburg, IL Kentucky Agricultural Experiment Station Illinois Found. Seeds, Inc. P.O. Box 722 Champaign, IL RRYGCB E Y 109 EXP7001 YGCB M Y YGCB M Y 115 JX745 W W 116 ST.3020 W W 3030 W W T-7N51 RRCB E Y 112 T-7N52 RRCB E/ETH Y 112 T-8A01 RRCB M/ETH Y 113 T-5337 RRCB M Y 113 V5173 VT3 E Y 111 V52RP73 RRCRW/CB E Y 112 V55B71 CB/LL M Y 114 V56R86 RR M Y 116 Early Check E Y 112 Medium M Y 115 Check Late Check L Y Trait: BT corn borer resistance BTCB corn borer resistance BTRW corn rootworm resistance CB corn borer resistance CL Clearfield Corn (Lightning herbicide tolerance) CRW corn rootworm resistance HX Herculex (corn rootworm resistance) IT imidazolinone tolerance (Lightning herbicide tolerance) LL Liberty Link (Liberty herbicide resistance) RR Roundup Ready Corn (glyphosate tolerance) RR2 Roundup Ready Corn 2 (new event, glyphosate tolerance) TC TopCross corn (high oil) YG YieldGard (corn borer resistance) YGBT YieldGard (corn borer resistance) YGCB YieldGard Corn Borer (corn borer resistance) YGRW YieldGard RootWorm (corn rootworm resistance) TS Triple stack of traits VT3 Triple stack of traits 2 Test: E = Early, M = Medium, L = Late, W = White, HO = High Oil, ETH = Ethanol 3 Color: W = White, Y = Yellow 4 CRM: Cumulative Relative Maturity (days) Data provided by the seed companies. 6

7 Table 3E-1YR. Annual Summary, 20, Early Hybrids (112 Days to Maturity or Earlier), All Locations. YLD MST BU/AC LG SEEDS LG2590BTRWRR 183.6* DAIRYLAND 6009 RR 182.5* LG SEEDS LG2600BT 182.2* WYFFELS W7387 YGCB/RR * DEKALB RX715 (VT3) 179.7* NK BRAND N72-Q6 CB/LL 178.6* WYFFELS W7645 HX1/LL 178.6* NK BRAND N68-B8 CB/LL 177.5* AGRIGOLD A6479BTRR 177.4* DEKALB DKC61-45 (RR2/YGCB) 177.2* SOUTHERN STATES SS661VT * CROW S 4846T 176.8* DEKALB DKC61-73 (RR2/YGCB) 176.2* BECK 5444CBRWRR SEED CONSULTANTS SC11BL LG SEEDS LG2552BT AUGUSTA 5175CB SOUTHERN STATES SS 647RR2YGCB TRISLER SEEDS T-7N51RRCB CAVERNDALE CF823 RR2/YGPL AUGUSTA 06-04HXP DAIRYLAND 7611 BT/RR TRISLER SEEDS T-7N52RRCB DAIRYLAND 7010 BT/RR AGRIGOLD A6455BTRR LG SEEDS LG2614BT AUGUSTA 06-BTP SEED CONSULTANTS SC11RR MYCOGEN SEEDS 2C SEED CONSULTANTS SC10MT STEYER SEEDS 1095 RRYGCB AGRIGOLD A6497RWRR BECK 5555 CBRWRR AUGUSTA 06-06P AGRIGOLD A6474BTRR SEED CONSULTANTS SC11HR VIGORO V52RP73 (RRCRW/CB) WYFFELS W7133 AGRISURE CB/LL WYFFELS W5286 YGRW/RR CROW S 5263 T PIONEER 33N55(RR2) DEKALB DKC58-16 (VT3) DAIRYLAND 9212 BT/RR/CRW CROPLAN GENETICS 6025TS VIGORO V5173 (VT3) PIONEER 34A17(HX1/LL/RR2) GARST SEEDS/8450IT SEED CONSULTANTS SC10BL SEED CONSULTANTS SCMT AGRIGOLD A6459BT CAVERNDALE CF804 RR DYNA-GRO 56B DAIRYLAND 6210 RR FIELDERS CHOICE NG SEED CONSULTANTS SC11MT EARLY CHECK Table 3E-2YR. Two-Year Summary, 2006-, Early Hybrids (112 Days to Maturity or Earlier), All Locations. YLD MST T WT BU/AC LG SEEDS LG2600BT 190.1* DEKALB DKC61-45 (RR2/YGCB) 187.8* NK-BRAND/N68-B8 CB/LL SOUTHERN STATES SS 647RR2YGCB GARST SEEDS/8450IT EARLY CHECK EARLY AVERAGE LSD (0.10) * In any column, a hybrid mean that is followed by an asterisk does not differ significantly (less than or equal to one LSD) from the highest yielding hybrid in that column. Table 3E-3YR. Three-Year Summary, 2005-, Early Hybrids (112 Days to Maturity or Earlier), All Locations. YLD MST BU/AC LG SEEDS LG2600BT 180.1* DEKALB DKC61-45 (RR2/YGCB) 177.8* GARST SEEDS/8450IT EARLY CHECK EARLY AVERAGE LSD (0.10) * In any column, a hybrid mean that is followed by an asterisk does not differ significantly (less than or equal to one LSD) from the highest yielding hybrid in that column. EARLY AVERAGE LSD (0.10) * In any column, a hybrid mean that is followed by an asterisk does not differ significantly (less than or equal to one LSD) from the highest yielding hybrid in that column. = Lodging = Test Weight 7

8 Table 4M-1YR. Annual Summary, 20, Medium Hybrids ( Days to Maturity), All Locations. YLD MST BU/AC DEKALB DKC67-23 (RR2/YGCB) 192.2* AGRIGOLD A6633BTRR 190.3* DEKALB DKC67-87 (RR2) 190.1* AGRIGOLD A6596HX 189.1* GREAT LAKES 6381 HX 187.2* PIONEER 33N58 (HX1/LL/RR2) 187.0* TRISLER SEEDS T-8A01RRCB 186.1* NK BRAND N76-D3 CB/LL 185.5* AGRIGOLD A6594BTRR 185.5* DYNA-GRO 57B * TRISLER SEEDS T-5337RRCB 185.1* AGRIGOLD A6622HX 184.8* DAIRYLAND 7615 BT/RR 184.8* DYNA-GRO CX CAVERNDALE CF 895 RR2/YGCB CAVERNDALE CF CROPLAN GENETICS 6831RH BECK NK BRAND N75-A4 CB/LL GARST SEEDS/8351CB/LL/GT PIONEER 33R81(YGCB/RR2) PIONEER 33F85 (RR2) CROPLAN GENETICS 6992RB LG SEEDS/LG2640BT AUGUSTA 5337 CBP BECK 6722CBRWRR VIGORO V55B71 (CB/LL) SOUTHERN STATES SS731CL DEKALB DKC63-46 (RR2/YGCB) WYFFELS W86 YGCB/RR WYFFELS W8257 YGCB/RR AUGUSTA 5338 CBP FIELDERS CHOICE 7880WPR STEYER SEEDS EXP7001YGCB MYCOGEN SEEDS 2T DEKALB DKC63-74 (RR2/YGPL) SEED CONSULTANTS SC 11MT STEYER SEEDS 1152 RRYGCB GARST SEEDS/8353CB/LL AGRIGOLD A6522BT VIGORO V56R86 (RR) SOUTHERN STATES SS746RR2YGCB GREAT LAKES 6321 BTRR EXSEGEN ES CROPLAN GENETICS 7505RR DEKALB DKC65-47 (RR2) GATEWAY PIONEER 33M57(HX1/LL/RR2) DAIRYLAND 6114 RR DEKALB DKC64-78 (RR2/YGCB) DYNA-GRO 57F AUGUSTA FIELDERS CHOICE NG SEEDS CONSULTANTS SC 11RR WYFFELS W8368 AGRISURE CB/LL/C CROW S 5132 S AUGUSTA HX FIELDERS CHOICE NG SEED CONSULTANTS SC11H AGRIGOLD A6639VT DEKALB DKC63-42 (VT3) BO-JAC SEED CONSULTANTS SC 11RR BECK 7916CBRR CROPLAN GENETICS 799RB WYFFELS W8721 RR WYFFELS W9127 VT CROW S 5291B CROPLAN GENETICS 6818TS MYCOGEN SEEDS 2A SEED CONSULTANTS SC 11B MEDIUM CHECK FIELDERS CHOICE 7850B FIELDERS CHOICE 7830WPR SOUTHERN STATES SS783RR2/YGCB SEED CONSULTANTS SC 11MT MEDIUM AVERAGE LSD (0.10) * In any column, a hybrid mean that is followed by an asterisk does not differ significantly (less than or equal to one LSD) from the highest yielding hybrid in that column. 8 Table 4M-2YR. Two-Year Summary, 2006-, Medium Hybrids ( Days to Maturity), All Locations. YLD MST BU/AC PIONEER 33R81(YGCB/RR2) 189.4* TRISLER SEEDS T-5337RRCB 188.4* DEKALB DKC63-46 (RR2/YGCB) 188.1* CAVERNDALE CF * NK BRAND N76-D3 CB/LL 183.7* LG SEEDS/LG2640BT SEED CONSULTANTS SC11H BECK 7916CBRR STEYER SEEDS 1152 RRYGCB DEKALB DKC63-74 (RR2/YGPL) EXSEGEN ES CROPLAN GENETICS 799RB BO-JAC MEDIUM CHECK SEED CONSULTANTS SC 11B SEED CONSULTANTS SC 11RR SOUTHERN STATES SS783RR2/YGCB MEDIUM AVERAGE LSD (0.10) * In any column, a hybrid mean that is followed by an asterisk does not differ significantly (less than or equal to one LSD) from the highest yielding hybrid in that column. Table 4M-3YR. Three-Year Summary, 2005-, Medium Hybrids ( Days to Maturity), All Locations. YLD MST BU/AC CAVERNDALE CF * NK BRAND N76-D3 CB/LL 175.3* CROPLAN GENETICS 799RB 175.1* STEYER SEEDS 1152 RRYGCB EXSEGEN ES MEDIUM CHECK MEDIUM AVERAGE LSD (0.10) * In any column, a hybrid mean that is followed by an asterisk does not differ significantly (less than or equal to one LSD) from the highest yielding hybrid in that column. = Lodging = Test Weight

9 Table 5L-1YR. Annual Summary, 20, Late Hybrids (118 Days to Maturity or Later), All Locations. YLD MST BU/AC PIONEER 31P * PIONEER 31D61(YGCB) PIONEER 31G71(HX1/LL/RR2) PIONEER 31D SEED CONSULTANTS SC11BR AUGUSTA -14HX GARST SEED/8295YG1/RR AUGUSTA 06-02HXP DEKALB DKC69-43 (RR2) SEED CONSULTANTS SC11BR AUGUSTA SEED CONSULTANTS SC12BR AUGUSTA DEKALB DKC69-68 (RR2/YGRW) AUGUSTA LATE CHECK LATE AVERAGE LSD (0.10) * In any column, a hybrid mean that is followed by an asterisk does not differ significantly (less than or equal to one LSD) from the highest yielding hybrid in that column. Table 6W-1YR. Annual Summary, 20, White Hybrids ( Days to Maturity or Later), Six Locations.** YLD MST BU/AC PIONEER 33V * PIONEER 32B * PIONEER 33G * PIONEER 32R AGRIGOLD A6587W STEYER JX MEDIUM CHECK STEYER ST AGRIGOLD 6537W STEYER ST AGRIGOLD A6637W AGRIGOLD A6567W WHITE AVERAGE LSD (0.10) * In any column, a hybrid mean that is followed by an asterisk does not differ significantly (less than or equal to one LSD) from the highest yielding hybrid in that column. ** Quicksand data not included. Table 5L-2YR. Two-Year Summary, 2006-, Late Hybrids (118 Days to Maturity or Later), All Locations. YLD MST BU/AC PIONEER 31P * PIONEER 31G71(HX1/LL/RR2) 185.7* PIONEER 31D DEKALB DKC69-68 (RR2/YGRW) LATE CHECK LATE AVERAGE LSD (0.10) * In any column, a hybrid mean that is followed by an asterisk does not differ significantly (less than or equal to one LSD) from the highest yielding hybrid in that column. Table 6W-2YR. Two-Year Summary, 2006-, White Hybrids ( Days to Maturity), Five Locations.** YLD MST BU/AC LBSBU PIONEER BRAND 33G * PIONEER BRAND 33B * PIONEER BRAND 33V PIONEER BRAND 32R AGRIGOLD A6587W AGRIGOLD 6537W MEDIUM CHECK WHITE AVERAGE LSD (0.10) * In any column, a hybrid mean that is followed by an asterisk does not differ significantly (less than or equal to one LSD) from the highest yielding hybrid in that column. ** Quicksand & Waverly data not included. Table 6W-3YR. Three-Year Summary, 2005-, White Hybrids ( Days to Maturity), Five Locations.** YLD MST BU/AC PIONEER BRAND 33B * PIONEER BRAND 33V * PIONEER BRAND 32R * AGRIGOLD A6587W AGRIGOLD 6537W MEDIUM CHECK WHITE AVERAGE LSD (0.10) * In any column, a hybrid mean that is followed by an asterisk does not differ significantly (less than or equal to one LSD) from the highest yielding hybrid in that column. ** Quicksand & Waverly data not included. = Lodging = Test Weight 9

10 Agronomic Information Cooperator Lynn Denton 2855 Lap Rollins Barlow, KY (location 1) Soil Type Granada Silt Loam Fertilizer (lb/acre) N P 2 O K 2 O Herbicide Steadfast, Atrazine Insecticide Force 1.5G Planting Dates April 18, 19 Harvest Dates Sept. 11, 12 Previous Crop soybean Notes There was little or no weed problems and <10 Southwestern corn borer pressure at this location. = Lodging = Test Weight Table 8E.Yield Summary, 20, Early Average (112 Days to Maturity or Earlier), LaCenter, KY. BU/AC BU/AC BU/AC LG SEEDS LG2590BTRWRR 217.2* BECK 5444CBRWRR 210.4* CROW S 4846T 208.8* WYFFELS W7645 HX1/LL 208.6* LG SEEDS LG2552BT 2.1* NK-BRAND N68-B8 CB/LL 193.1* 2.1* DEKALB RX715 (VT3) 206.1* AUGUSTA 06-06P 204.6* AUGUSTA 06-04HXP 203.3* LG SEEDS LG2614BT 202.9* NK BRAND N72-Q6 CB/LL 202.5* WYFFELS W7133 AGRISURE CB/LL 201.4* SEED CONSULTANTS SC11BL 201.0* MYCOGEN SEEDS 2C * SEED CONSULTANTS SC10BL * LG SEEDS LG2600BT 188.1* 199.6* 199.4* CAVERNDALE CF823 RR2/YGPL 198.7* DEKALB DKC61-73 (RR2/YGCB) 195.8* DEKALB DKC58-16 (RR2-YGRW+YGCB) AUGUSTA 5175CB WYFFELS W7387 YGCB/RR VIGORO V52RP73 (RRCRW/CB) DAIRYLAND 6009 RR SOUTHERN STATES SS 661VT AUGUSTA 06-BTP TRISLER SEEDS T-7N51RRCB AGRIGOLD A6474BTRR DEKALB DKC61-45 (RR2/YGCB) 187.5* 206.1* FIELDERS CHOICE NG STEYER SEEDS 1095 RRYGCB WYFFELS W5286 YGRW/RR DYNA-GRO 56B SOUTHERN STATES SS 647RR2YGCB 195.5* AGRIGOLD A6479BTRR DAIRYLAND 7010 BT/RR DAIRYLAND 9212 BT/RR/CR SEED CONSULTANTS SC10MT PIONEER 33N55 (RR2) BECK 5555 CBRWRR DAIRYLAND 7611 BT/RR AGRIGOLD A6497RWRR TRISLER SEEDS T- 7N52RRCB SEED CONSULTANTS SC11HR AGRIGOLD A6455BTRR PIONEER 34A17 (HX1/LL/RR2) VIGORO V5173 (VT3) SEED CONSULTANTS SCMT CROW S 5263 T SEED CONSULTANTS SC11MT SEED CONSULTANTS SC11RR DAIRYLAND 6210 RR CAVERNDALE CF804 RR GARST SEEDS/8450IT EARLY CHECK CROPLAN GENETICS 6025TS AGRIGOLD A6459BT EARLY AVERAGE LSD (0.10) C.V Table 8W. Yield Summary, 20, White Average ( Days to Maturity), LaCenter, KY. BU/AC BU/AC BU/AC PIONEER 33G * 240.2* PIONEER 33V * 211.0* 238.0* PIONEER 32B * 210.3* 233.9* PIONEER 32R * STEYER ST AGRIGOLD A6587W STEYER ST MEDIUM CHECK AGRIGOLD A6637W AGRIGOLD A6567W STEYER JX AGRIGOLD 6537W WHITE AVERAGE LSD (0.10) C.V * In any column, a hybrid mean that is followed by an asterisk does not differ significantly (less than or equal to 10 Table 8L.Yield Summary, 20, Late Average (118 Days to Maturity or Later), LaCenter, KY. YLD YLD MST BU/AC BU/AC 06- PIONEER 31P * 240.0* PIONEER 31D * 233.0* PIONEER 31G71(HX1/LL/RR2) 215.6* 232.0* PIONEER 31D61(YGCB) 231.8* AUGUSTA 06-02HXP SEED CONSULTANTS SC11BR SEED CONSULTANTS SC12BR AUGUSTA GARST SEED/8295YG1/RR AUGUSTA -14HX DEKALB DKC69-43 (RR2) AUGUSTA SEED CONSULTANTS SC11BR LATE CHECK DEKALB DKC69-68 (RR2/YGRW) AUGUSTA LATE AVERAGE LSD (0.10) C.V * In any column, a hybrid mean that is followed by an asterisk does not differ significantly (less than or equal to

11 Table 8M. Yield Summary, 20, Medium Average ( Days to Maturity), LaCenter, KY. BU/AC BU/AC BU/AC DEKALB DKC67-87 (RR2) 237.6* NK BRAND N75-A4 CB/LL 231.6* DEKALB DKC63-42 (RR2-YGRW+YGCB) 223.5* SEEDS CONSULTANTS SC 11RR * DAIRYLAND 6114 RR 223.1* AGRIGOLD A6633BTRR 222.2* WYFFELS W8257 YGCB/RR * CROW S 5132 S 221.6* CROW S 5291B AGRIGOLD A6622HX LG SEEDS/LG2640BT 199.8* AGRIGOLD A6522BT CROPLAN GENETICS 6992RB AUGUSTA HX TRISLER SEEDS T-8A01RRCB CAVERNDALE CF 895RR2/YGCB FIELDERS CHOICE NG CAVERNDALE CF * 197.7* PIONEER 33F85 (RR2) DEKALB DKC63-46 (RR2/YGCB) 202.0* VIGORO V55B71 (CB/LL) AGRIGOLD A6596HX GARST SEEDS/8351CB/LL/GT DAIRYLAND 7615 BT/RR GREAT LAKES 6381 HX DEKALB DKC67-23 (RR2/YGCB) AUGUSTA 5338 CBP TRISLER SEEDS T-5337RRCB 198.9* SEED CONSULTANTS SC11H * BECK BO-JAC SOUTHERN STATES SS731CL NK BRAND N76-D3 CB/LL 190.1* 200.5* MYCOGEN SEEDS 2A DYNA-GRO 57B CROPLAN GENETICS 6831RH DEKALB DKC63-74 (RR2/YGPL) 203.9* VIGORO V56R86 (RR) STEYER SEEDS 7001YGCB AUGUSTA CROPLAN GENETICS 7505RR WYFFELS W8368 AGRISURE CB/LL/C WYFFELS W9121 VTS MYCOGEN SEEDS 2T SOUTHERN STATES SS746RR2YGCB DYNA-GRO CX PIONEER 33M57(HX1/LL/RR2) DEKALB DKC64-78 (RR2/YGCB) AGRIGOLD A6639VT GARST SEEDS/8353CB/LL DYNA-GRO 57F PIONEER 33N58 (HX1/LL/RR2) EXSEGEN ES * 198.8* SEED CONSULTANTS SC 11B * SEED CONSULTANTS SC 11MT WYFFELS W8721 RR SEED CONSULTANTS SC 11RR WYFFELS W86 YGCB/RR CROPLAN GENETICS 799RB BECK 6722CBRWRR FIELDERS CHOICE NG DEKALB DKC65-47 (RR2) AUGUSTA 5337 CBP GREAT LAKES 6321 BTRR PIONEER 33R81(YGCB/RR2) 192.5* AGRIGOLD A6594BTRR BECK 7916CBRR STEYER SEEDS 1152 RRYGCB * SOUTHERN STATES SS783RR2/YGCB FIELDERS CHOICE 7850B FIELDERS CHOICE 7880WPR CROPLAN GENETICS 6818TS GATEWAY FIELDERS CHOICE 7830WPR MEDIUM CHECK SEED CONSULTANTS SC 11MT MEDIUM AVERAGE LSD (0.10) C.V = Lodging = Test Weight 11

12 Agronomic Information Cooperator University of Kentucky Research and Education Center Princeton (location 2) Soil Type Huntington Silt Loam Fertilizer (lb/acre) N P 2 O K 2 O Herbicide Bicep II, Magnum, Gramoxone, Exceed Insecticide Force 1.5G Planting Dates April 19, 20 Harvest Dates Sept. 19, 20 Previous Crop soybean Notes There was very little weed problems or Southwestern borer pressure at this location. There was some compaction in areas early in the season. = Lodging = Test Weight Table 9E. Yield Summary, 20, Early Average (112 Days to Maturity Or Earlier), Princeton, KY. BU/AC BU/AC BU/AC CROPLAN GENETICS 6025TS 232.1* WYFFELS W7645 HX1/LL 232.0* TRISLER SEEDS T-7N51RRCB 231.0* DEKALB DKC61-45 (RR2/YGCB) 210.9* 225.9* 230.6* LG SEEDS LG2600BT * 230.5* AGRIGOLD A6455BTRR 226.5* DAIRYLAND 7010 BT/RR 226.1* BECK 5555 CBRWRR 224.6* ASGROW/RX715VT3(RR2-YGRW+YGCB) 224.3* AGRIGOLD A6479BTRR 224.2* BECK 5444 CBRWRR 221.8* CAVERNDALE CF823 RR2/YGPL 220.6* LG SEEDS LG2552BT 219.6* DEKALB DKC61-73 (RR2/YGCB) 219.1* SOUTHERN STATES SS 647RR2YGCB 216.6* 218.7* SEED CONSULTANTS SC11BL 218.4* WYFFELS W5286 YGRW/RR * DAIRYLAND 7611 BT/RR 214.8* WYFFELS W7387 YGCB/RR * AUGUSTA 06-06P CROW S 4846T SOUTHERN STATES SS661VT AUGUSTA 5175CB AGRIGOLD A6474BTRR LG SEEDS LG2590BTRWRR DEKALB DKC58-16 (RR2-YGRW+YGCB) VIGORO V52RP73 (RRCRW/CB) DAIRYLAND 6009 RR SEED CONSULTANTS SC11RR AUGUSTA 06-04HXP VIGORO V5173 (VT3) STEYER SEEDS 1095 RRYGCB GARST SEEDS/8450IT 208.9* 224.9* AGRIGOLD A6497RWRR AUGUSTA 06-BTP TRISLER SEEDS T-7N52RRCB SEED CONSULTANTS SC10MT NK-BRAND N68-B8 CB/LL 215.1* LG SEEDS LG2614BT PIONEER 34A17 (HX1/LL/RR2) NK BRAND N72-Q6 CB/LL AGRIGOLD A6459BT CROW S 5263 T PIONEER 33N55 (RR2) SEED CONSULTANTS SC11HR SEED CONSULTANTS SC11MT DAIRYLAND BT/RR/CR SEED CONSULTANTS SCMT CAVERNDALE CF804 RR MYCOGEN SEEDS 2C WYFFELS W7133 AGRISURE CB/LL EARLY CHECK FIELDERS CHOICE NG DYNA-GRO 56B SEED CONSULTANTS SC10BL DAIRYLAND 6210 RR EARLY AVERAGE LSD (0.10) C.V Table 9W.Yield Summary, 20, White Average ( Days to Maturity), Princeton, KY. BU/AC BU/AC BU/AC PIONEER 33G * 216.1* PIONEER 32B * 218.4* 212.2* PIONEER 33V * * PIONEER 32R38 2.1* * AGRIGOLD A6637W STEYER JX STEYER ST MEDIUM CHECK STEYER ST AGRIGOLD A6587W 194.6* AGRIGOLD A6567W AGRIGOLD A6537W WHITE AVERAGE LSD (0.10) C.V * In any column, a hybrid mean that is followed by an asterisk does not differ significantly (less than or equal to 12 Table 9L.Yield Summary, 20, Late Average (118 Days to Maturity or Later), Princeton, KY. YLD YLD MST BU/AC BU/AC 06- PIONEER 31P * 220.6* SEED CONSULTANTS SC11BR * AUGUSTA * AUGUSTA -14HX 199.4* DEKALB/DKC69-43RR * PIONEER 31G71(HX1/LL/RR2) * PIONEER 31D * 196.8* GARST SEED/8295YG1/RR 196.1* PIONEER 31D61(YGCB) AUGUSTA 06-02HXP AUGUSTA SEED CONSULTANTS SC11BR DEKALB DKC69-68 (RR2/YGRW) SEED CONSULTANTS SC12BR AUGUSTA LATE CHECK LATE AVERAGE LSD (0.10) C.V * In any column, a hybrid mean that is followed by an asterisk does not differ significantly (less than or equal to

13 Table 9M. Yield Summary, 20, Medium Average ( Days to Maturity), Princeton, KY. BU/AC BU/AC BU/AC DYNA-GRO CX * DEKALB DKC67-23 (RR2/YGCB) 234.5* DEKALB DKC67-87 (RR2) 229.8* AGRIGOLD A6594BTRR 228.2* LG SEEDS/LG2640BT 217.6* 226.1* NK BRAND N76-D3 CB/LL 199.5* * SOUTHERN STATES SS731CL 224.9* DEKALB DKC63-74 (RR2/YGPL) 222.6* 224.2* PIONEER 33F85 (RR2) 223.8* PIONEER 33N58 (HX1/LL/RR2) 223.3* TRISLER SEEDS T-8A01RRCB 222.3* WYFFELS W8257 YGCB/RR * CAVERNDALE CF 895 RR2/YGCB 221.9* AGRIGOLD A6596HX 221.7* SOUTHERN STATES SS746RR2YGCB 220.9* GREAT LAKES 6321 BTRR 220.6* PIONEER 33R81(YGCB/RR2) 230.3* 220.5* DEKALB DKC63-42 (RR2-YGRW+YGCB) 220.1* CROPLAN GENETICS 6992RB 219.9* GREAT LAKES 6381 HX 218.9* DEKALB DKC63-46 (RR2/YGCB) 220.5* 218.5* BECK * TRISLER SEEDS T-5337RRCB 217.9* 215.3* DAIRYLAND 7615 BT/RR 213.9* FIELDERS CHOICE 7880WPR 213.8* AGRIGOLD A6522BT 213.7* AGRIGOLD A6633BTRR 213.7* GARST SEEDS/8353CB/LL 213.1* CAVERNDALE CF * 218.5* 213.0* DAIRYLAND 6114 RR 212.9* AUGUSTA HX CROW S 5132 S AGRIGOLD A6622HX VIGORO V56R86 (RR) DEKALB DKC65-47 (RR2) FIELDERS CHOICE NG VIGORO V55B71 (CB/LL) NK BRAND N75-A4 CB/LL AUGUSTA 5338 CBP DYNA-GRO 57F STEYER SEEDS 1152 RRYGCB DYNA-GRO 57B WYFFELS W8368 AGRISURE CB/LL/C SEED CONSULTANTS SC 11RR BO-JAC GATEWAY WYFFELS W8721 RR CROPLAN GENETICS 7505RR DEKALB DKC64-78 (RR2/YGCB) AUGUSTA 5337 CBP BECK 6722CBRWRR EXSEGEN ES FIELDERS CHOICE NG STEYER SEEDS EXP7001YGCB SEED CONSULTANTS SC 11MT FIELDERS CHOICE 7830WPR WYFFELS W9121 VTS MYCOGEN SEEDS 2T FIELDERS CHOICE 7850B CROPLAN GENETICS 6831RH AUGUSTA BECK 7916CBRR CROW S 5291B MYCOGEN SEEDS 2A CROPLAN GENETICS 799RB 211.7* SEEDS CONSULTANTS SC 11RR CROPLAN GENETICS 6818TS MEDIUM CHECK AGRIGOLD A6639VT SEED CONSULTANTS SC11H WYFFELS W86 YGCB/RR SEED CONSULTANTS SC 11MT SEED CONSULTANTS SC 11B PIONEER 33M57(HX1/LL/RR2) GARST SEEDS/8351CB/LL/GT SOUTHERN STATES SS783RR2/YGCB MEDIUM AVERAGE LSD (0.10) C.V = Lodging = Test Weight 13