2013 Kentucky Hybrid Corn Performance Test Richard C. Kenimer, Ron W. Curd, and Chad Lee, Department of Plant and Soil Sciences

Transcription

1 AGRICULTURAL EXPERIMENT STATION UNIVERSITY OF KENTUCKY COLLEGE OF AGRICULTURE, FOOD AND ENVIRONMENT, LEXINGTON, KY, PR Kentucky Hybrid Corn Performance Test Richard C. Kenimer, Ron W. Curd, and Chad Lee, Department of Plant and Soil Sciences The objective of the Kentucky Hybrid Corn Performance Test is to provide relative performance estimates of hybrid seed corn sold in Kentucky. The test attempts to treat every hybrid similarly in an unbiased manner. Agronomic practices that meet or exceed university guidelines are implemented at each location. Presentation of Data Complete 2013 data is presented for the tests across all locations and 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 from multiple locations provide a better indication of hybrid performance. If individual location data is used, it should be used in combination with a multiple location average. The state summary table (Table 2) summarizes the data collected over multiple locations and several years. The state summary presents better estimates of hybrid yield ability than data gathered at a single location. Comparisons between yields and other characteristics 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, and White tests based on relative maturity or trait characteristics. Hybrids that are likely to yield as high as the highest yielding hybrid, based on statistical evaluation, are indicated by asterisks. See Hybrid Comparisons and Experimental Design and Mean Comparisons sections for more detail. Testing Procedure Selection of Hybrids The hybrids submitted for testing are those most likely to be available for sale in Representatives from seed companies select and nominate their own hybrids. They provide the seed Table 1 and identify the maturity and/or seed coat color. Location of Tests The map below shows the test locations. The test sites were selected to represent different agro-climatic areas of Kentucky where corn is a major commodity. Please note that the Graves County location was not included in the data analysis due to extensive bird damage early, resulting in irregular stands. Cultural Practices Corn seed was planted no-till into soybean stubble at two locations and into tilled fields at the other three. Fertilizer was applied as indicated by soil tests. All test areas were treated with herbicide(s) and insecticide(s) supplemented by post emergence herbicide when necessary. Specific cultural treatment for each location is included in that location s table, which includes notes about the growing season. Experimental Design and Mean Comparisons Each hybrid was grown in three replications at each location to sample uncontrollable variability within the field. Yields presented in the tables are averages of three replications at the test site; twoyear and three-year means are averages of six and nine replications, respectively. A randomized complete block design (RCBD) was used for each maturity group test at each location. List of Tables Table 1 Hybrids Tested in 2013 Table 2 Early, Medium, Late, White Hybrids State Summary Yield Summaries: Early, Medium, Late and White Hybrids. Table 3 Daviess County Map Position 1 Table 4 Weather Data, Daviess County Table 5 LaRue County Map Position 2 Table 6 Weather Data, LaRue County Table 7 Lexington Map Position 3 Table 8 Weather Data, Lexington Table 9 Princeton Map Position 4 Table 10 Weather Data, Princeton Table 11 Todd County Map Position 5 Table 12 Weather Data, Todd County Locations of the 2013 Kentucky Hybrid Corn Performance Tests 1. Daviess County 2. LaRue County 3. Lexington 4. Princeton 5. Todd County University of Kentucky Lexington, Kentucky RESEARCH

2 These tests are designed to predict relative yield ability. In these tests, we are most interested in how Hybrid A yields relative to Hybrid B. 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 A 165 B 155 C 140 LSD (0.10) 12 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, meaning that we would expect hybrids A and B to have the same yield capability the next season. However the yield difference between hybrids A and C is 25 bu/acre ( = 25), which is greater than the LSD (12 bu/acre). The LSD indicates that we would expect Hybrid A to have greater yield capability than Hybrid C next year. The LSD occurs at the bottom of each table. Yields that are less than the LSD are not significantly different from each other. Tables are sorted from greatest to least yield. An asterisk has been placed alongside yields that are not significantly different from the highest yield mean in that column. The analysis indicates that all hybrids with yields followed by an asterisk would be expected to have similar yield potential next season. The coefficient of variation (CV) is a calculated value that helps indicate unexplained variation in these studies. A smaller CV 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. Two-row plots are suitable for comparing performance of hybrids to one another. Each hybrid seed was planted into plots consisting of two rows 30 inches apart and 22 feet long. Hybrid seed was Table 1. Hybrids Tested in Company Hybrid Trait* Test** Color CRM*** AgriGold Hybrids A6408VT3PRIB VT3PRO E Yellow 107 Justin Warren A6472VT3PRO VT3PRO E Yellow A6478VT3PRIB VT3PRO E Yellow Akin Rd A6486VT2RIB VT2PRO E Yellow 111 St. Francisville, IL A6496STX STX E Yellow 111 justin.warren@agrigold.com A6499VT3PRO VT3PRO E Yellow 112 A6501VT3PRO VT3PRO M Yellow 113 A6517VT3PRIB VT3PRO M Yellow 113 A6533VT2RIB VT2PRO M Yellow 113 A6559VT2PRO VT2PRO M Yellow 113 A6553VT3PRIB VT3PRIB M Yellow 114 A6573VT3PRIB VT3PRO M Yellow 114 A6659VT3PRO VT3PRO M Yellow 116 A6687VT2PRO VT2PRO M Yellow 117 Armor Seed Scottie Blanchard PO Box 9 Waldenburg, AR scottieblanchard@armorseed.com Augusta Seed Corporation Dennis Rawley Matt Rawley PO Box 899 Verona, VA Dennis.rawley@augustaseed.com Matt.rawley@augustaseed.com Beck s Hybrids Craig Moore East 276th Street Atlanta, IN cmoore@beckshybrids.com Phoenix Craig Moore East 276th Street Atlanta, IN cmoore@beckshybrids.com Caverndale Farms Brand Seed Barry Welty Bluegrass Pike Danville, KY bwelty@kywimax.com Channel David Haines PO Box Franklin, TN david.haines@channelbio.com Delta Grow Seed Lee Hughes PO Box 219 England, AR Leehughes19@hotmail.com Dyna-Gro Seed Chris Hummel Hwy J Bowling Green, MO Chris.hummel@cpsagu.com A6507WBtRR BtRR W White PRO2 VT2PRO E Yellow PRO2 VT2PRO E Yellow PRO2 VT2PRO E Yellow SS Smart stax M Yellow PRO2 VT2PRO M Yellow 115 A0720 GTCBLL E Yellow 112 A4658 GT3000 E Yellow 108 A5262 GTCBLL E Yellow 112 A5658 GTCBLL E Yellow 108 A5565 VT3Pro M Yellow 115 A7767 VT3Pro M Yellow 117 A6665 VT3Pro M Yellow 115 A5664 GT3000 M Yellow 114 A6664 VT3Pro M Yellow 114 A5465 GTCBLL M Yellow 115 A4564 SS M Yellow AM * CBLLRR-RIB E Yellow AM * CBLLRR-RIB E Yellow A3 CBLLRWGT M Yellow A3 CBLLRWGT M Yellow AM * CBLLRR-RIB M Yellow A3** CBLLRWGT E Yellow A4** CBLLRWGTBL M Yellow 115 CF 802 GTCBLL GTCBLL E Yellow 111 CF 834 VT2PRO RRCB E Yellow 112 CF GT GTCBLLRW E Yellow 112 CF GT GTCBLLRW M Yellow 113 CF 837 GTCBLL GTCBLL M Yellow 113 CF 864 VT2PRORIB RRCB M Yellow 116 CF 894 VT2PRO RRCB L Yellow VT3PRIB VT3Pro M Yellow VT3PRIB VT3Pro M Yellow VT2PRIB VT3Pro M Yellow 113 DG2888 GT CB LL M Yellow 115 DG3788 GT CB LL M Yellow 114 D51VP32 VT3Pro E Yellow 111 D52VC91 VT2Pro E Yellow 112 D53VC13 VT2Pro M Yellow 113 D54VP81 VT3Pro M Yellow 114 D55VP77 VT3Pro M Yellow 115 continued 2

3 planted at 40 seeds/row for each plot. When seedlings were 12 to 18 inches tall, the stands were thinned to 36 plants/row equaling 28,000 plants/acre. Harvesting All plots were harvested with a Kincaid 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. The Kentucky Hybrid Corn Performance Test is divided into four tests: Early, Medium, and Late maturities and White 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. The Early, Medium, Late and White tests were grown at all five locations for a total of 20 tests. The Early maturity hybrid group in Table 2E 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 2M 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 2L and all subsequent L tables include those hybrids rated by the parent seed company to mature in 118 days or later. The White hybrid group in Table 2W and all subsequent W tables includes those hybrids with a white seed coat and rated by the parent seed company to mature in 112 to 119 days. Grain moisture of hybrids in the Early, Medium, and Late tests should be within the LSD for that test. Hybrids with grain Table 1. Hybrids Tested in 2013 (continued) Company Hybrid Trait* Test** Color CRM*** Golden Acres 24V61 VT3P E Yellow 111 Chase Milligan G4598 VT2P M Yellow G5531 VT3P M Yellow Hwy 293 S Dumas, AR chase@progenyag.com Great Lakes Hybrids Phil Brunner Ginnylock Dr. Indianapolis, IN Phil.brunner@greatlakeshybrids.com LG Seeds Jesse Grogan Shissler Road Elmwood, IL Jesse.grogan@lgseeds.com Monsanto Todd Ladd Rhett Blvd Cadiz, KY jtladd@monsanto.com Mycogen Chris Wiley Zionsville Rd. Indianapolis, IN Syngenta Sarah Gehant Upton Talley Rd Upton, KY Sarah.gehant@syngenta.com Pfister Seeds Brad Johnson McCormick Ave Rhodes, IA bjohnson@pfisterseeds.com Pioneer Hi-Bred International, Inc. George Stabler Abbeydale Way Columbia, SC George.Stabler@pioneer.com Seed Consultants Inc. Bill Mullen Miami Trace Rd. SW Washington Court House, OH bmullen@seedconsultants.com VT3PRIB VT3Pro E Yellow VT3PRIB VT3Pro M Yellow VT3PRIB VT3Pro M Yellow VT3PRIB VT3Pro M Yellow 116 LG2555VT3PRIB VT3Pro E Yellow 110 LG2602VT3PRIB VT3Pro E Yellow 112 LG5618STX STX E Yellow 112 LG2620VT2RIB VT2Pro M Yellow 113 LG2636VT3PRIB VT3Pro M Yellow 114 LG2641VT2RIB VT3Pro M Yellow 114 LG5701VT3PRO VT3Pro M Yellow 116 DKC61-78 GENVT3P E Yellow 111 DKC61-89 GENVT2P E Yellow 111 DKC62-08 GENSS E Yellow 112 DKC62-98 GENVT2P E Yellow 112 DKC63-87 GENVT2P M Yellow 113 DKC65-19 GENVT3P M Yellow 115 DKC66-40 GENSS M Yellow 116 DKC66-97 GENVT2P M Yellow 116 DKC67-58 GENVT2P M Yellow 117 DKC69-29 GENVT3P L Yellow 119 2A749 SSX-RA/RR/LL E Yellow 113 2V709 SSX-RA/RR/LL E Yellow 111 2V717 SSX-RA/RR/LL E Yellow 112 2J794 HX1RR/LL M Yellow 115 2V779 SSX-RA/RR/LL M Yellow 113 2C786 SSX-RA/RR/LL M Yellow 114 2Y767 SSX-RA/RR/LL M Yellow 114 N68B-3111 BL, GT,CB,RW,LL E Yellow 111 N70J-3011A GT, CB, RW, LL E Yellow 112 N72Q-3111 BL, GT,CB,RW,LL M Yellow 113 N74G-3000GT GT,LL M Yellow 114 N78S-3111 BL,GT,CB, RW,LL M Yellow RA RA/SS M Yellow HR HX1/RR2 M Yellow RA RA/SS M Yellow 115 P0912HR HX1, LL, RR2 E Yellow 109 P1105YHR YG, HX1, LL, RR2 E Yellow 111 P1319HR HX1, LL, RR2 M Yellow 113 P1412HR HX1, LL, RR2 M Yellow 114 P1498YHR YG, HX1, LL, RR2 M Yellow 114 P1636YHR YG, HX1, LL, RR2 M Yellow 116 P2088YHR YG, HX1, LL, RR2 L Yellow G60 HX1, LL, RR2 W White 114 P1431W Conv W White B16 HX1, LL, RR2 W White 117 P1995W Conv W White 119 P1477WHR HX1, LL, RR2 W White 114 P1659WHR HX1, LL, RR2 W White 116 SC 11AQ03 CB/RW/LL/GT E Yellow 109 SCS 1094AM-R YGCB, HX1, RR2 E Yellow 108 SCS 11HR02 HX1/LL/RR2 E Yellow 109 SCS 11HR12 HX1/LL/RR2 E Yellow 110 SCS 11HR21 HX1/LL/RR2 E Yellow 111 SCS 1131AM-R YGCB, HX1, RR2 M Yellow 113 SC 11HQ33 HXT/LL/RR2 M Yellow 113 SC 11AQ43 CB/RW/LL/GT M Yellow 113 SCS 1154AM-R YGCB, HX1, RR2 M Yellow 114 SCS 11HR63 HX1/LL/RR2 M Yellow 116 SC 11AQ72 CB/RW/LL/GT M Yellow 117 SCS 1184AM-R YGCB, HX1, RR2 M Yellow 117 continued

4 moisture above the LSD likely belong in a later-maturing test. Each hybrid is placed in the Early, Medium, and Late tests based on the hybrid maturity defined by the company. Notes about the 2013 growing season are next to each location data table. Acknowledgments The authors sincerely appreciate efforts of the Kentucky Corn Promotion Council in providing a Kincaid 8-XP Corn plot combine through a very reasonable lease agreement. This combine contributes to improved accuracy of the data. 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: John and Jerry Griffith and families of Sedalia, Ky. Carlos Tucker and family of Sonora, Ky. John Camp and family of Elkton, Ky. Darrell Hagan and family of Owensboro, Ky. The authors give special thanks to Ted Walker, John Stanhope and the entire crew of the College of Ag Farm Shop for keeping us going year-round. Additional acknowledgments are made to the following people who helped conduct this year s performance test. Richard C. Green, Research Technician, Department of Plant and Soil Sciences, Lexington, Ky. Dr. James Herbek, Extension Specialist in Grain Crops, Research and Extension Center, Princeton, Ky. Dr. Lloyd Murdock, Soil Scientist, Research and Extension Center, Princeton, Ky. Joe Williams, Superintendent, and Scott Peek, Farm Manager, Research and Education Center, Princeton, Ky. Wayne Hisel, temporary help in Laura Jane Phelps and Emily Perry, students from University of Kentucky and Morehead State University, respectively. Mark Thomas, local Pioneer representative for supplying seed for borders. Curtis Judy, Extension Agent, Todd County, Ky. Clint Hardy, Extension Agent, Daviess County, Ky. David Harrison Extension Agent, LaRue County, Ky. Table 1. Hybrids Tested in 2013 (continued) Company Hybrid Trait* Test** Color CRM*** Specialty Grains, Inc. SGI 3100 Conv W White 116 John Trewartha Sangamon Ave Gibson City, IL john@sgigrain.com Stewart Seeds 8V896RIB Genuity VT3P RIB E Yellow 115 Justin Petrosino 7E224RIB Genuity VT2P RIB E Yellow E743RIB Genuity VT2P RIB E Yellow E County Road 300 N 8V623RIB Genuity VT3P RIB M Yellow 112 Greensburg, IN E663RIB Genuity VT2P RIB M Yellow 113 justin.petrosino@stewartseeds.com 8E753RIB Genuity VT2P RIB M Yellow 113 Steyer Seeds Joe Steyer PO Box 209 Old Fort, OH joesteyer@yahoo.com Sunstar Hybrids Bob Osborn State Road 17 Culver, IN bob@sunstarhybrids.com Terral Seed, Inc. Phil Michener Ellington Dr. Rayville, LA pmichener@terralseed.com Warren Seed & Agronomy Service Lanny Warren PO Box 10 Woodland Mills, TN lanny.warren@charter.net *Trait: A3: Syngenta 3000 GT (Triple) BT: corn borer resistance BTCB: corn borer resistance BTRW: corn rootworm resistance CB: corn borer resistance CL: Clearfield Corn imidazolinone tolerance Conv: Conventional, No GMO Traits GENVT3P: Roundup Ready 2 glyphosate tolerance, YieldGard VT corn borer resistance, corn rootworm resistance GT3000: AgriSure glyphosate tolerance, AgriSure corn borer resistance and AgriSure corn rootworm resistance GT: AgriSure glyphosate tolerance HX&HX1: Herculex corn rootworm resistance HXT: Herculex gluphosinate tolerance, corn borer resistance, corn rootworm resistance, cutworm tolerance IT: Clearfield imidazolinone tolerance LL: Liberty Link gluphosinate tolerance RHXT: Liberty Link gluphosinate tolerance, Roundup Ready glyphosate tolerance, Herculex corn borer resistance, Herculex corn rootworm resistance, Herculex cutworm tolerance RIB: Refuge in a Bag RR: Roundup Ready Corn glyphosate tolerance RR2: Roundup Ready Corn 2 glyphosate tolerance Smart Stax (SS, STX, or SSX): Roundup Ready glyphosate tolerance, Liberty Link glufosinate tolerance, YieldGard corn borer resistance, Herculex corn rootworm resistance, Herculex corn borer resistance, YieldGard corn rootworm resistance, Herculex cutworm tolerance 8E814RIB Genuity VT2P RIB M Yellow VT3PRORIBC VT3PRORIBC E Yellow VT3PRORIBC VT3PRORIBC E Yellow GENSSRIBC GENSSRIBC E Yellow VT3PRORIBC VT3PRORIBC M Yellow VT2PRORIBC VT2PRORIBC M Yellow VT3PRORIBC VT3PRORIBC M Yellow GENSSRIBC GENSSRIBC M Yellow A9 VT3PRIB E Yellow A12 VT3PRIB M Yellow A11 VT3PRIB M Yellow HR73 HX1/LL/RR E Yellow BHR21 YGCB/HX1/LL/RR E Yellow BHR43 YGCB/HX1/LL/RR E Yellow BHR93 YGCB/HX1/LL/RR M Yellow R60 RR M Yellow HR83 HX1/LL/RR M Yellow HR20 HX1/LL/RR L Yellow R10 RR L Yellow 118 DS 9111SSX SSX E Yellow 111 DS 9212SSX SSX E Yellow 112 DS GT E Yellow 110 DS 9311SSX SSX M Yellow 111 DS 9314SSX SSX M Yellow 114 DS 9713SSX SSX M Yellow 113 DS 9614Q QUAD M Yellow 114 TS: Roundup Ready glyphosate tolerance, YieldGard corn borer resistance, YieldGard corn rootworm resistance YG: YieldGard corn borer resistance YGBT: YieldGard corn borer resistance YGCB: YieldGard corn borer resistance YGRW: YieldGard corn rootworm resistance VT3: Roundup Ready glyphosate tolerance, YieldGard VT corn borer resistance and YieldGard corn rootworm resistance VT3P: Roundup Ready 2 glyphosate tolerance, YieldGard VT corn borer resistance and YieldGard VT corn rootworm resistance VT3PRO: Roundup Ready 2 glyphosate tolerance, YieldGard VT corn borer resistance and YieldGard VT corn rootworm resistance VT3PRORIBC: Roundup Ready 2 glyphosate tolerance, YieldGard VT corn borer resistance and YieldGard VT corn rootworm resistance, Refuge in a Bag VT2PRO: Roundup Ready 2 glyphosate tolerance, YieldGard VT corn borer resistance QUAD: Herculex Xtra, Liberty Link gluphosinate tolerance, glyphosate tolerance VT2PRORIBC: Roundup Ready 2 glyphosate tolerance, Yield- Gard VT corn borer resistance, Refuge in a Bag RA: Refuge Advanced BL: RW: corn rootworm resistance **Test: E = Early, M = Medium, L = Late, W = White ***CRM: Cummulative Relative Maturity TM = Trade Mark 4

5 Table 2E. Early Hybrid1 Corn Test State Summary. YIELD (BU/AC) DEKALB DKC * Warren Seed DS * 190.1* LG Seeds LG5618STX 193.5* Augusta A5262GTCBLL 193.0* Pioneer P1105YHR 192.1* DEKALB DKC * Seed Consultants SCS 1094AM-R 190.6* Caverndale CF 834 VT2PRO 190.0* LG Seeds LG2555VT3PRIB 189.6* 193.9* 195.5* Great Lakes 6232VT3PRIB 189.4* 192.3* 192.7* Warren Seed DS 9111SSX 189.1* 187.5* Caverndale CF GT 189.0* 191.2* 193.4* Beck 6175AM * 188.6* Warren Seed DS 9212SSX Augusta A0720GTCBLL Stewart 7E743RIB Pioneer P0912HR * 186.8* Stewart 7E224RIB * Steyer GENSSRIBC Mycogen 2V Dyna-Gro D52VC Beck 5828AM * Armor 1133PRO LG Seeds LG2602VT3PRIB * 189.5* Seed Consultants SC 11AQ Augusta A4658GT AgriGold A6499VT3PRO Sunstar Hybrids 13A Mycogen 2V NK N70J-3011A Dyna-Gro D51VP Golden Acres 24V Seed Consultants SCS 11HR * 175.8* Steyer VT3PRORIBC AgriGold A6496STX Augusta A5658GTCBLL DEKALB DKC Seed Consultants SCS 11HR * 185.2* Phoenix 5832A3** REV 17HR REV 22BHR AgriGold A6486VT2RIB * AgriGold A6472VT3PRO AgriGold A6408VT3PRIB Armor 1262PRO * 185.1* NK N68B * 187.1* REV 22BHR Mycogen 2A Armor 1010PRO * Steyer VT3PRORIBC * DEKALB DKC Caverndale CF 802 GTCBLL Seed Consultants SCS 11HR AgriGold A6478VT3PRIB Average C.V LSD (0.10) Early varieties: 112 days to maturity or earlier. 5

6 Table 2M. Medium Hybrid1 Corn Test State Summary. Beck 6626AM * 214.4* REV 24BHR * Seed Consultants SCS 206.5* 194.2* 202.2* HR63 Golden Acres G * Golden Acres G * Channel VT3PRIB 203.6* 211.2* Phoenix 6542A4** 203.0* Seed Consultants SCS 202.8* AM-R Augusta A7767VT3PRO 202.7* Steyer VT3PRORIBC 202.5* Channel VT3PRIB 200.1* 208.5* 207.2* Seed Consultants SCS 199.0* AM-R Augusta A6664VT3PRO DEKALB DKC * 194.6* Great Lakes 6530VT3PRIB * 202.6* AgriGold A6559VT2PRO Seed Consultants SCS AM-R LG Seeds LG5701VT3PRO Seed Consultants SCS HQ33TM REV 26R * 194.8* Mycogen 2V Great Lakes 6686VT3PRIB Sunstar Hybrids 12A AgriGold A6501VT3PRO DEKALB DKC Steyer VT3PRORIBC * Channel VT2PRIB Dyna-Gro D53VC Seed Consultants SC AQ43 Stewart 8E663RIB Warren Seed DS 9713SSX Augusta A6665VT3PRO LG Seeds LG2641VT2RIB * 193.2* Pioneer P1498YHR Stewart 8V896RIB Warren Seed DS 9311SSX Mycogen 2Y LG Seeds LG2636VT3RIB * 191.5* AgriGold A6659VT3PRO Dyna-Gro D55VP DEKALB DKC Dyna-Gro D54VP * 197.9* continued Warren Seed DS 9314SSX Pioneer P1319HR * 196.7* AgriGold A6573VT3PRIB * 197.1* Sunstar Hybrids 13A Stewart 8E814RIB * AgriGold A6687VT2PRO Pioneer P1412HR * AgriGold A6517VT3PRIB * Stewart 8E753RIB Caverndale CF 837 GTCBLL Mycogen 2J Augusta A4564SS Seed Consultants SC AQ72T DEKALB DKC * Augusta A5664GT Stewart 8V623RIB Beck 6348A Armor 1555SS Warren Seed DS 9614Q * Pfister 3488HR * Mycogen 2C AgriGold A6553VT3PRIB REV 27HR * NK N78S * 201.2* Steyer VT2PRORIBC Great Lakes 6354VT3PRIB Steyer GENSSRIBC Armor 1550PRO Caverndale CF 864 VT PRORIB Beck 6948A Pioneer P1636YHR Augusta A5565VT3Pro * NK N72Q * NK N74G-3000GT DEKALB DKC Pfister 2770RA Augusta A5465GTCBLL Pfister 3515RA LG Seeds LG2620VT2RIB Caverndale CF GT AgriGold A6533VT2RIB Delta Grow DG3788GTCBLL Delta Grow DG2888GTCBLL * Average C.V LSD (0.10) Medium varieties: days to maturity. 6

7 Table 2L. Late Hybrid1 Corn Test State Summary. YIELD (BU/AC) REV 28HR * 195.0* 199.5* REV 28R * 188.0* 192.3* Pioneer 2088YHR * 194.1* DEKALB DKC Caverndale CF 894 VT2PRO Average C.V LSD (0.10) Late varieties: 118 days to maturity or later. Table 2W. White Hybrid1 Corn Test State Summary. YIELD (BU/AC) Pioneer 33G * 161.9* 173.2* Pioneer P1995W * 176.1* Pioneer P1477WHR Pioneer P1659W Pioneer 32B * 182.6* Pioneer P1431W * Agrigold A6507WBtRR * 167.8* Specialty Grains SGI Average C.V LSD (0.10) White varieties: days to maturity. 7

8 Table 3E. Early Hybrid1 Corn Test Daviess County. DEKALB DKC * Warren Seed DS 9111SSX 228.1* 219.1* Stewart 7E743RIB 225.7* LG Seeds LG5618STX 224.7* LG Seeds LG2602VT3PRIB 224.0* 213.7* 216.1* Great Lakes 6232VT3PRIB 223.9* 230.6* 227.8* DEKALB DKC * LG Seeds LG2555VT3PRIB 223.1* 223.6* 227.6* Caverndale CF * VT2PRO Seed Consultants SCS 221.4* AM-R Dyna-Gro D52VC * Armor 1133PRO * Warren Seed DS * 212.4* AgriGold A6499VT3PRO 216.7* Augusta A0720GTCBLL 215.8* Stewart 7E224RIB 215.7* 208.6* Armor 1010PRO * 211.2* Augusta A5262GTCBLL 214.7* Seed Consultants SCS 213.6* 208.6* HR02 Pioneer P1105YHR 213.5* Beck 6175AM * 212.9* Mycogen 2V * Steyer VT3PRORIBC 212.1* Beck 5828AM * 211.2* Mycogen 2V * DEKALB DKC * Seed Consultants SCS 208.6* HR21 Warren Seed DS 9212SSX continued Steyer GENSSRIBC Pioneer P0912HR Sunstar Hybrids 13A Dyna-Gro D51VP Phoenix 5832A3** Caverndale CF * 209.1* GT REV 22BHR Armor 1262PRO * 211.5* AgriGold A6472VT3PRO Golden Acres 24V Seed Consultants SCS HR12 Seed Consultants SC AQ03 NK N70J-3011A AgriGold A6486VT2RIB Augusta A5658GTCBLL Steyer VT3PRORIBC AgriGold A6496STX NK N68B * 214.9* REV 17HR REV 22BHR Augusta A4658GT Caverndale CF 802 GTCBLL Mycogen 2A DEKALB DKC AgriGold A6478VT3PRIB AgriGold A6408VT3PRIB Average C.V LSD (0.10) Early varieties: 112 days to maturity or earlier. Planting date: April 16, 2013; Harvest date: September 30, 2013; Soil type: Waverly silt loam; Previous crop: Soybean; Fertilizer: 261/92/120 8

9 Table 3M. Medium Hybrid1 Corn Test Daviess County. YEILD (BU/AC) Seed Consultants SCS 247.9* 227.5* 237.7* HR63 Seed Consultants SCS 247.6* AM-R Beck 6626AM * 245.9* Great Lakes 6530VT3PRIB 237.3* 241.6* 235.9* Golden Acres G * Steyer VT3PRORIBC 235.3* Seed Consultants SCS 234.8* AM-R Stewart 8E663RIB 234.5* Seed Consultants SCS 233.5* AM-R Channel VT3PRIB 232.3* 248.2* Augusta A7767VT3PRO 232.1* REV 26R * 223.6* 228.4* Phoenix 6542A4** 230.8* Seed Consultants SC 229.2* AQ43 AgriGold A6573VT3PRIB 228.6* * Great Lakes 6686VT3PRIB 228.4* LG Seeds LG2641VT2RIB 228.0* 219.0* 221.5* Augusta A6664VT3PRO 227.5* REV 27HR * 231.7* Channel VT2PRIB 224.7* REV 24BHR * Seed Consultants SCS 224.3* HQ33 Channel VT3PRIB 223.8* 228.6* 233.1* DEKALB DKC * Stewart 8E814RIB 223.1* DEKALB DKC * AgriGold A6559VT2PRO 221.6* Armor 1550PRO * Stewart 8E753RIB 220.7* LG Seeds LG5701VT3PRO 220.1* Warren Seed DS 9314SSX 218.0* Sunstar Hybrids 13A * LG Seeds LG2636VT3RIB 216.1* Pioneer P1498YHR 215.5* 224.2* DEKALB DKC * DEKALB DKC * Golden Acres G * AgriGold A6659VT3PRO 212.9* AgriGold A6687VT2PRO 212.8* Armor 1555SS 211.8* Augusta A4564SS 211.8* Dyna-Gro D53VC * Pioneer P1319HR * continued YEILD (BU/AC) Augusta A5664GT Beck EX 0262A Mycogen 2V Stewart 8V623RIB AgriGold A6501VT3PRO Dyna-Gro D55VP Caverndale CF 864 VT PRORIB Great Lakes 6354VT3PRIB Stewart 8V896RIB Mycogen 2J Pfister 3488HR Mycogen 2C Warren Seed DS 9311SSX Sunstar Hybrids 12A Caverndale CF 837 GTCBLL Mycogen 2Y AgriGold A6553VT3PRIB AgriGold A6517VT3PRIB Beck 6948A Seed Consultants SC AQ72 DEKALB DKC Pioneer P1412HR NK N74G-3000GT AgriGold A6533VT2RIB Augusta A6665VT3PRO NK N72Q Augusta A5465GTCBLL Dyna-Gro D54VP * Warren Seed DS 9614Q Pioneer P1636YHR Steyer VT2PRORIBC Steyer GENSSRIBC Warren Seed DS 9713SSX LG Seeds LG2620VT2RIB NK N78S Steyer VT3PRORIBC Pfister 2770RA Pfister 3515RA Augusta A5565VT3Pro Caverndale CF GT Delta Grow DG GTCBLL Delta Grow DG GTCBLL Average C.V LSD (0.10) Medium varieties: days to maturity. Planting date: April 16, 2013; Harvest date: September 30, 2013; Soil type: Waverly silt loam; Previous crop: Soybean; Fertilizer: 261/92/120 9

10 Table 3L. Late Hybrid1 Corn Test Daviess County. YIELD (BU/AC) (LB/BU) (%) (%) (%) REV 28HR * 228.9* 227.4* Pioneer 2088YHR 222.5* 208.0* 216.6* REV 28R * 205.0* 213.3* DEKALB DKC Caverndale CF 894 VT2PRO Average C.V LSD (0.10) Late varieties: 118 days to maturity or later. Planting date: April 16, 2013; Harvest date: September 30, 2013; Soil type: Waverly silt loam; Previous crop: Soybean; Fertilizer: 261/92/120 Table 3W. White Hybrid1 Corn Test Daviess County. YIELD (BU/AC) (LB/BU) (%) (%) (%) Pioneer 33G * 200.1* 207.7* Pioneer 32B * 219.6* 215.5* Pioneer P1995W 214.2* * Pioneer P1477WHR Pioneer P1659W Agrigold A6507WBtRR Pioneer P1431W Specialty Grains SGI Average C.V LSD (0.10) White varieties: days to maturity. Planting date: April 16, 2013; Harvest date: September 30, 2013; Soil type: Waverly silt loam; Previous crop: Soybean; Fertilizer: 261/92/120 Table 4. Weather Data Daviess County. Monthly Temperature Precipitation (in) Average Highest Lowest March April May June July August September

11 Table 5E. Early Hybrid1 Corn Test LaRue County. Caverndale CF * 129.6* 156.6* GT Beck 5828AM * 175.1* Stewart 7E224RIB 174.8* 123.4* AgriGold A6499VT3PRO 171.6* Pioneer P1105YHR 170.5* Augusta A5262GTCBLL 169.0* Warren Seed DS * 115.2* Caverndale CF * VT2PRO Augusta A0720GTCBLL 167.3* Augusta A5658GTCBLL 167.3* DEKALB DKC * AgriGold A6472VT3PRO 164.1* Beck 6175AM * 163.8* DEKALB DKC * REV 17HR * Warren Seed DS 9111SSX 162.7* 129.6* DEKALB DKC * Phoenix 5832A3** 161.9* Dyna-Gro D52VC * NK N70J-3011A 160.6* Pioneer P0912HR 160.4* 110.3* 141.8* Seed Consultants SCS 160.3* AM-R Armor 1262PRO * 115.6* 146.4* Great Lakes 6232VT3PRIB 159.7* * Golden Acres 24V * REV 22BHR * Augusta A4658GT * Warren Seed DS 9212SSX 158.2* continued Armor 1010PRO * 129.1* Mycogen 2A * AgriGold A6408VT3PRIB 157.1* LG Seeds LG5618STX 156.5* Sunstar Hybrids 13A * Steyer GENSSRIBC 154.4* Seed Consultants SC 152.8* AQ03 AgriGold A6496STX 152.2* DEKALB DKC * Caverndale CF 802 GTCBLL 152.1* Dyna-Gro D51VP * LG Seeds LG2555VT3PRIB 151.8* 117.2* 147.1* AgriGold A6478VT3PRIB 151.5* Armor 1133PRO * REV 22BHR * Steyer VT3PRORIBC 149.4* NK N68B * 124.7* 150.3* AgriGold A6486VT2RIB 148.0* 105.5* Seed Consultants SCS 147.2* * HR02 Seed Consultants SCS * 139.4* HR12 Mycogen 2V Mycogen 2V Stewart 7E743RIB Seed Consultants SCS HR21 LG Seeds LG2602VT3PRIB Steyer VT3PRORIBC * Average C.V LSD (0.10) Early varieties: 112 days to maturity or earlier. Planting date: May 1, 2013; Harvest date: October 8, 2013; Soil type: Nolin silt loam; Previous crop: Soybean; Fertilizer: 170/60/60 11

12 Table 5M. Medium Hybrid1 Corn Test LaRue County. AgriGold A6559VT2PRO 188.0* Golden Acres G * Channel VT3PRIB 184.7* 172.2* Steyer VT3PRORIBC 184.1* 173.5* Golden Acres G * Channel VT2PRIB 183.0* Channel VT3PRIB 180.8* 177.2* 182.9* Stewart 8E814RIB 179.0* * Augusta A7767VT3PRO 178.8* AgriGold A6501VT3PRO 177.9* Augusta A4564SS 177.4* Phoenix 6542A4** 176.0* Dyna-Gro D55VP * Pfister 3488HR 173.8* 170.2* Steyer VT3PRORIBC 173.2* Beck 6626AM * 172.7* Seed Consultants SCS 172.5* AM-R NK N78S * * REV 24BHR * Augusta A6664VT3PRO 171.3* Beck 6948A * Seed Consultants SCS 170.0* * HR63 Pioneer P1412HR 169.9* * Pfister 2770RA 169.4* Stewart 8V623RIB 169.3* Augusta A6665VT3PRO 169.1* DEKALB DKC * Sunstar Hybrids 13A * DEKALB DKC * LG Seeds LG5701VT3PRO 166.6* Dyna-Gro D54VP * * Warren Seed DS 9311SSX 165.1* AgriGold A6687VT2PRO 164.2* Great Lakes 6686VT3PRIB 163.9* AgriGold A6659VT3PRO 163.7* Augusta A5565VT3Pro 163.3* 150.5* Pioneer P1319HR 163.0* 156.1* 180.1* Caverndale CF 837 GTCBLL 162.9* Stewart 8E663RIB 162.1* Mycogen 2V * Warren Seed DS 9314SSX 161.3* NK N72Q * * AgriGold A6517VT3PRIB 160.1* Seed Consultants SCS 160.1* HQ33 DEKALB DKC * Mycogen 2Y * continued DEKALB DKC * 158.1* 176.1* Armor 1555SS AgriGold A6553VT3PRIB Steyer VT2PRORIBC Stewart 8V896RIB Mycogen 2C Stewart 8E753RIB Great Lakes 6530VT3PRIB Armor 1550PRO Seed Consultants SCS AM-R Warren Seed DS 9713SSX Augusta A5465GTCBLL DEKALB DKC Pfister 3515RA REV 26R * LG Seeds LG2641VT2RIB Dyna-Gro D53VC Caverndale CF 864 VT PRORIB Sunstar Hybrids 12A Seed Consultants SC AQ72 LG Seeds LG2636VT3RIB Steyer GENSSRIBC Pioneer P1498YHR Beck 6348A Warren Seed DS 9614Q Seed Consultants SC AQ43 NK N74G-3000GT Mycogen 2J Caverndale CF GT Augusta A5664GT Great Lakes 6354VT3PRIB AgriGold A6573VT3PRIB Seed Consultants SCS AM-R Delta Grow DG * GTCBLL Delta Grow DG GTCBLL LG Seeds LG2620VT2RIB Pioneer P1636YHR AgriGold A6533VT2RIB REV 27HR Average C.V LSD (0.10) Medium varieties: days to maturity. Planting date: May 1, 2013; Harvest date: October 8, 2013; Soil type: Nolin silt loam; Previous crop: Soybean; Fertilizer: 170/60/60 12

13 Table 5L. Late Hybrid1 Corn Test LaRue County. YIELD (BU/AC) REV 28HR * 166.8* 183.4* REV 28R * 172.1* 179.8* Pioneer 2088YHR 190.0* 171.7* 185.0* Caverndale CF 894 VT2PRO 188.9* DEKALB DKC * Average C.V LSD (0.10) Late varieties: 118 days to maturity or later. Planting date: May 1, 2013; Harvest date: October 8, 2013; Soil type: Nolin silt loam; Previous crop: Soybean; Fertilizer: 170/60/60 Table 5W. White Hybrid1 Corn Test LaRue County. YIELD (BU/AC) Pioneer P1431W 146.5* 158.2* 178.3* Pioneer P1659W 144.8* Pioneer 32B * 157.1* 180.9* Pioneer 33G * 141.3* 168.2* Agrigold A6507WBtRR 130.1* 139.3* 164.7* Pioneer P1477WHR 129.3* Pioneer P1995W 121.3* 142.5* 167.6* Specialty Grains SGI * Average C.V LSD (0.10) White varieties: days to maturity. Planting date: May 1, 2013; Harvest date: October 8, 2013; Soil type: Nolin silt loam; Previous crop: Soybean; Fertilizer: 170/60/60 Table 6. Weather Data LaRue County. Monthly Temperature Precipitation (in) Average Highest Lowest March April May June July August September

14 Table 7E. Early Hybrid1 Corn Test Lexington. DEKALB DKC * LG Seeds LG5618STX 206.5* Dyna-Gro D52VC * DEKALB DKC * Augusta A4658GT * Seed Consultants SCS 186.7* AM-R Beck 6175AM * 185.7* Seed Consultants SCS 185.3* * HR02 AgriGold A6499VT3PRO 185.2* Pioneer P0912HR 184.6* * Beck 5828AM * 183.8* Stewart 7E224RIB 182.8* 109.9* Armor 1010PRO * 127.1* DEKALB DKC * Great Lakes 6232VT3PRIB 182.1* 118.1* 146.3* Augusta A5262GTCBLL 182.0* Mycogen 2V * Golden Acres 24V * LG Seeds LG2602VT3PRIB 180.6* 112.7* 148.7* Augusta A0720GTCBLL 180.3* Sunstar Hybrids 13A Seed Consultants SC AQ03 Warren Seed DS Warren Seed DS 9212SSX AgriGold A6478VT3PRIB Seed Consultants SCS * 143.1* HR12 NK N68B * Steyer GENSSRIBC continued Dyna-Gro D51VP Mycogen 2A DEKALB DKC Stewart 7E743RIB NK N70J-3011A LG Seeds LG2555VT3PRIB * 147.9* Caverndale CF * GT Mycogen 2V Warren Seed DS 9111SSX * Caverndale CF VT2PRO AgriGold A6486VT2RIB * Phoenix 5832A3** Armor 1133PRO REV 17HR Steyer VT3PRORIBC * REV 22BHR Steyer VT3PRORIBC Armor 1262PRO * AgriGold A6408VT3PRIB AgriGold A6496STX Augusta A5658GTCBLL AgriGold A6472VT3PRO REV 22BHR Caverndale CF 802 GTCBLL Pioneer P1105YHR Seed Consultants SCS HR21 Average C.V LSD (0.10) Early varieties: 112 days to maturity or earlier. Planting date: May 2, 2013; Harvest date: October 21, 2013; Soil type: Lanton; Previous crop: Soybean; Fertilizer: 150/0/0 14

15 Table 7M. Medium Hybrid1 Corn Test Lexington. Beck 6626AM * 204.7* Sunstar Hybrids 12A * Golden Acres G * Channel VT3PRIB 198.0* 113.7* Augusta A7767VT3PRO 197.9* Channel VT3PRIB 196.7* 126.0* 153.9* Golden Acres G * Phoenix 6542A4** 192.4* Augusta A6664VT3PRO 189.9* Mycogen 2V * Mycogen 2J * LG Seeds LG5701VT3PRO 188.3* REV 24BHR * Augusta A5565VT3Pro 183.9* 114.4* Stewart 8V896RIB 183.8* Seed Consultants SCS 183.1* AQ72T DEKALB DKC * 117.2* 151.2* Warren Seed DS 9713SSX 182.2* Warren Seed DS 9311SSX 181.0* AgriGold A6559VT2PRO 180.9* Caverndale CF * GT AgriGold A6573VT3PRIB 180.3* 107.8* 143.2* AgriGold A6659VT3PRO 180.0* 106.1* LG Seeds LG2641VT2RIB 180.0* 117.1* 142.5* Steyer VT3PRORIBC 179.7* Dyna-Gro D53VC * REV 26R * * Steyer VT3PRORIBC 178.8* 121.0* DEKALB DKC * DEKALB DKC * LG Seeds LG2636VT3RIB 177.5* 107.2* 140.3* Great Lakes 6686VT3PRIB 177.3* AgriGold A6501VT3PRO 177.1* REV 27HR * 100.9* Steyer GENSSRIBC 174.9* AgriGold A6553VT3PRIB 174.8* Seed Consultants SCS 174.3* AM-R Seed Consultants SC 174.1* HQ33TM Beck 6348A * Pioneer P1636YHR 172.8* Augusta A6665VT3PRO 172.8* Dyna-Gro D54VP * * Dyna-Gro D55VP * Stewart 8E663RIB 170.9* Pfister 3488HR 169.7* 105.7* continued Mycogen 2Y * Pfister 2770RA 169.2* AgriGold A6517VT3PRIB 168.0* Pioneer P1412HR 167.5* 111.5* 150.0* Warren Seed DS 9314SSX 167.4* Augusta A5465GTCBLL 166.9* Seed Consultants SCS 166.9* AM-R Augusta A5664GT * Caverndale CF 837 GTCBLL 166.4* Great Lakes 6530VT3PRIB 164.6* * Seed Consultants SCS 164.5* HR63 Steyer VT2PRORIBC 164.5* Pioneer P1498YHR 164.0* 103.5* Armor 1555SS 163.1* Seed Consultants SC 163.0* AQ43 Mycogen 2C * Augusta A4564SS 161.8* Pfister 3515RA Sunstar Hybrids 13A LG Seeds LG2620VT2RIB Delta Grow DG * 142.3* GTCBLL Caverndale CF 864 VT PRORIB AgriGold A6687VT2PRO Warren Seed DS 9614Q AgriGold A6533VT2RIB Great Lakes 6354VT3PRIB Pioneer P1319HR * Stewart 8V623RIB Armor 1550PRO NK N74G-3000GT DEKALB DKC Beck 6948A Delta Grow DG GTCBLL Seed Consultants SCS AM-R Stewart 8E753RIB Channel VT2PRIB NK N72Q DEKALB DKC Stewart 8E814RIB NK N78S Average C.V LSD (0.10) Medium varieties: days to maturity. Planting date: May 2, 2013; Harvest date: October 21, 2013; Soil type: Lanton; Previous crop: Soybean; Fertilizer: 150/0/0 15