VIRGINIA CORN HYBRID AND MANAGEMENT TRIALS IN 2018

Transcription

1 VIRGINIA CORN HYBRID AND MANAGEMENT TRIALS IN 2018 Coordinators of Virginia Corn Hybrid Trials in 2018 Wade Thomason, Extension Specialist, School of Plant and Environmental Sciences, Virginia Tech Harry Behl, Research Specialist Senior, School of Plant and Environmental Sciences, Virginia Tech Elizabeth Rucker, Research Associate, School of Plant and Environmental Sciences, Virginia Tech Other contributors: Phillip Browning, Manager, Virginia Crop Improvement Association Foundation Seed Farm Doug Horn, Extension Agent, Rockingham County Karl Jones, Agricultural Manager Senior, Tidewater Agricultural Research and Extension Center Ned Jones, Farm Manager, Southern Piedmont Agricultural Research and Extension Center Steve Gulick and Brad Lael, Farm Managers, Northern Piedmont Center Brooks Saville and Jon Wooge, Agricultural Program Coordinators, College Farm, Virginia Tech Companies Participating in the 2018 Corn Hybrid Trials Company Brand Address Augusta Seed Augusta Seed PO Box 899, Verona, VA Crop Production Services Dyna-Gro 396 Washington Street, Boydton, VA Doebler s PA Hybrids, Inc. Doebler s 1000 Commerce Park Dr. Suite 106, Williamsport, PA DowDupont Pioneer 425 Abbeydale Way, Columbia, SC Erwin-Keith, Inc. Progeny Ag Products 1529 Hwy 193, Wynne, AR Mid-Atlantic Seeds Mid-Atlantic 204 St. Charles Way #163E, York, PA Monsanto Channel, DEKALB, Hubner 800 N Lindbergh Blvd., St Louis, MO Seed Consultants, Inc. Seed Consultants 648 Miami Trace Rd, Washington Court House, OH SeedKoz MorCorn and Phoenix 1725 Windward Concourse Suite 410, Alpharetta, GA Syngenta NK Brand 4013 Fairmount Pike, Signal Mountain, TN Tidewater Seed LLC AXIS Information Lane Suite 302, Easton, MD Appreciation is expressed to the Virginia Corn Check-Off Board for financial support of this research and the Virginia Extension corn program

2 Table of Contents Background Information, Yield Differences, Understanding Relative Yield, and Choice of Hybrids Virginia Corn Hybrid Plot Information... 2 Table 1. List of hybrids in the 2018 Virginia Corn Hybrid & Management Trials... 3 Handy Bt Trait Table... 6 Table Relative yield of hybrids entered in three or more locations... 8 Table 3. Two-year average relative yield of hybrids entered in three or more locations each year Table 4. Three-year average relative yield of hybrids entered in three or more locations each year Table 5. Yields at Holland, VA in Table 6. Two-year average yields at Holland, VA in 2017 and Table 7. Three-year average yields at Holland, VA in 2016, 2017, and Table 8. Yields at Mt. Holly, VA in Table 9. Two-year average yields at Mt. Holly, VA in 2017 and Table 10. Three-year average yields at Mt. Holly, VA in 2016, 2017, and Table 11. Yields at Mt. Holly, VA under irrigation in Table 12. Two-year average yields at Mt. Holly, VA under irrigation in 2017 and Table 13. Three-year average yields at Mt. Holly, VA under irrigation in 2016, 2017, and Table 14. Yields at Blackstone, VA in Table 15. Two-year average yields at Blackstone, VA in 2017 and Table 16. Three-year average yields at Blackstone, VA in 2016, 2017, and Table 17. Yields at Blacksburg, VA in Table 18. Two-year average yields at Blacksburg, VA in 2017 and Table 19. Three-year average yields at Blacksburg, VA in 2016, 2017, and Table 20. Yields at Orange, VA in Table 21. Two-year average yields at Orange, VA in 2017 and Table 22. Three-year average yields at Orange, VA in 2016, 2017, and Table 23. Yields at Shenandoah Valley in Rockingham County, VA in Table 24. Two-year average yields at Shenandoah Valley in Rockingham County, VA in 2017 and

3 Background Information Performance trials of commercial corn hybrids were conducted at six locations in Virginia in The Mt. Holly location consisted of both an irrigated and non-irrigated test. All locations were planted with a Wintersteiger PlotKing All locations were harvested with a Massey-Ferguson 8XP plot combine. Yields have been adjusted to 15.5% moisture. Grain test weight, moisture, and plot grain weights were measured with a GrainGauge manufactured by HarvestMaster. A list of companies participating in the trials is provided before the table of contents. All hybrids entered in the Virginia trials are those submitted by commercial companies. The locations at which particular hybrids were entered were specified by the company. Companies entering hybrids were charged a fee for each hybrid per location to support the Virginia Corn Hybrid and Management Trials. Yield Differences Experimental plots vary in yield and other measurements due to location in the field and other factors which cannot be controlled. Statistics given in the tables are intended to help the reader make valid comparisons between hybrids. The magnitude of differences which may have been due to uncontrollable variation has been computed for the data and listed at the bottom of columns as the LSD (.05) (least significant difference with 95% confidence). Differences less than the LSD are assumed not to be real differences with 95% confidence. Understanding Relative Yield Companies entering hybrids decide which hybrids are planted at which locations. Combining and comparing absolute yield and other results from multiple sites is inappropriate when not all hybrids are planted at all locations. For example, one hybrid might have an unfair advantage in such a comparison because it was tested only at sites with ideal growing conditions. Another hybrid tested at sites with less-than-ideal growing conditions would have yields that tended to be lower. In this example, it would be difficult to determine whether yield differences were because of differences in genetic yield potential or simply because of differences in the environmental conditions under which they were tested. The solution is to compare hybrids based on relative yields rather than absolute yields. To calculate relative yield, the yield for each hybrid at each site is divided by the average yield for all hybrids tested at that same site and multiplied by 100. Once each hybrid at each site has been assigned a relative yield, comparisons can be made between hybrids tested at the same site or different sites. For hybrids tested at multiple sites, we can also calculate a multi-site relative yield average. Relative yields of 100 indicate hybrids that were average performers. Relative yields greater than 100 indicate yields aboveaverage. Relative yields less than 100 indicate yields below-average. The magnitude of the relative yield numbers indicate how far above or below average a hybrid performed. For example, a hybrid with a relative yield of 110 yielded 10% of above the average yield for all hybrids at that site. Choice of Hybrids When making hybrid selections it is important to realize that hybrids differ in their performance in different environments. Some hybrids are more adapted to a wide range of environments. Hybrid performance may vary with year and location variations in rainfall, temperature, pests and other environmental variables. In these experiments, many hybrids have essentially the same yield, and great care should be taken in interpreting the results of a single year's tests, especially at only one location. For these reasons it is important, whenever possible, to also look at a hybrid's average across locations when making hybrid selections. Multi-year averages give even greater confidence to hybrid performance decisions. The relative yield tables compare the yield of a hybrid to the average yield of all hybrids in the test. These tables are an excellent summary of yield potential compared to other hybrids. 1

4 2018 Virginia Corn Hybrid Plot Information (Rates are on a per acre basis.) Blacksburg Whitethorne Farm Planted: May 11, 2018 no-till into killed cereal cover Harvested: October 23-24, 2018 Population: 25,285 plants/acre Pesticide: 2 qt glyphosate; 1 pt Atrazine 4L + 3 qt Acuron; 5 lb Force 3G at planting Fertilizer: pre-plant incorporated; 17 gal S-.13B-.25Zn at planting; 160 lb N as UAN side-dressed May 30, 2018 Plot Size: 2 rows 25' x 30" 4 replications Previous crop: Corn Soil Type: Hayter loam Cooperator: Brooks Saville, Jon Wooge Blackstone Southern Piedmont Agricultural Research & Extension Center Planted: April 20, 2018 conventional tillage Harvested: September 6, 2018 Population: 25,185 plants/acre Pesticide: 2 qt Brawl ATZ April 23, 2018 Fertilizer: 1000 lb pre-plant incorporated April 10, 2018; 80 lb N top-dressed using UAN May 23, 2018 Plot Size: 2 rows 25' x 30" 4 replications Soil Type: Appling and Durham sandy loam Cooperator: Ned Jones Holland Tidewater Agricultural Research & Extension Center Planted: April 19, 2018 no-till after peanuts Harvested: August 29-30, 2018 Pesticide: 1 qt Roundup March 29, 2018; 4 pt Bicep + 2 pt simazine April 18, 2018; Fertilizer: 347 lb April 10, 2018; 17 gal S-.13B-.25Zn at planting; 120 lb N + 15 lb S as side-dressed May 22, 2018 Plot Size: 2 rows 25' x 30" 4 replications Soil Type: Emporia, Nansemond Previous crop:peanuts Cooperator: Karl Jones Mt Holly (dryland) Virginia Crop Improvement Association Foundation Seed Farm Planted: April 30, 2018 no-till into soybean stubble Harvested: September 19, 2018 Population: 25,825 plants/acre Pesticide: 3 qt Acuron + 1 pt atrazine + 1 qt Princep preplant; 5 lb Force 3G at planting; 8 oz dicamba post-plant Fertilizer: pre-plant incorporated; 17 gal S-.13B-.25Zn at planting; 40 gpa sidedressed Plot Size: 2 rows 25' x 30" 4 replications Soil Type: Nansemond, Lumbee, State Previous crop: Soybeans Cooperator: Phillip Browning Mt Holly (irrigated) Virginia Crop Improvement Association Foundation Seed Farm Planted: April 30 May 1, 2018 no-till into soybean stubble Harvested: September 20-21, 2018 Population: 29,815 plants/acre Pesticide: 3 qt Acuron + 1 pt atrazine + 1 qt Princep preplant; 5 lb Force 3G at planting; 8 oz dicamba post-plant Fertilizer: pre-plant incorporated; 17 gal S-.13B-.25Zn at planting; 40 gpa sidedressed Irrigation: none; site received rain over the growing season: April=3.41, May=13.18, June=5.47, July=4.71, August=3.42, September=5.42 Plot Size: 2 rows 25' x 30" 4 replications Soil Type: State fine sandy loam Previous crop: Soybeans Cooperator: Phillip Browning Orange Northern Piedmont Center Planted: May 8, 2018 no-till into soybean stubble Harvested: October 4, 2018 Population: 27,630 plants/acre Pesticide: 3 qt Acuron + 1 pt 2, 4-D + 1 qt glyphosate April 23, 2018; 5 lb Force 3G at planting; 1.3 oz Primero June 20, 2018 Fertilizer: May 7, 2018; 17 gal S-.13B-.25Zn at planting; 100 lb N as UAN side-dressed June 13, 2018 Plot Size: 2 rows 25' x 30" 4 replications Soil Type: Starr silt loam Previous crop: Soybeans Cooperators: Steve Gulick, Brad Lael Shenandoah Valley (Thanks to Mark Deavers) Planted: May 2, 2018 no-till into killed cover Harvested: October 18, 2018 Population: 25,600 plants/acre Pesticide: unavailable at this time Fertilizer: unavailable at this time Plot Size: 2 rows 25' x 30" 4 replications Soil Type: Edom silty clay loam Previous crop:soybeans Cooperators: Doug Horn and Mark Deavers 2

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6 Table 1. List of hybrids in the 2018 Virginia Corn Hybrid & Management Trials Brand Hybrid DTM per Co. 1 Insecticide Genetics Augusta A CruiserMaxx 250 Agrisure 3010 Augusta A CruiserMaxx 250 Agrisure Viptera 3110 Augusta A CruiserMaxx 250 Agrisure Viptera 3220 EZ Refuge Augusta A CruiserMaxx 250 VT Double PRO Augusta A CruiserMaxx 250 Agrisure 3000GT Augusta A CruiserMaxx 250 VT Double PRO Augusta A CruiserMaxx 250 Agrisure Viptera 3111 Augusta A CruiserMaxx 250 Agrisure Viptera 3110 AXIS 60P29RIB 109 Poncho 250 VT Double PRO RIB Complete AXIS 62A28RIB 112 Poncho 250 VT Double PRO RIB Complete AXIS 64K24RIB 114 Poncho 250 VT Double PRO RIB Complete AXIS 64D25RIB 114 Poncho 250 VT Double PRO RIB Complete AXIS 66A22RIB 116 Poncho 250 VT Double PRO RIB Complete AXIS 66R25RIB 116 Poncho 250 VT Double PRO RIB Complete Channel VT2PRIB 105 Poncho 250 VT Double PRO RIB Complete Channel VT2PRIB 106 Poncho 250 VT Double PRO RIB Complete Channel VT2PRIB 109 Poncho 250 VT Double PRO RIB Complete Channel VT2PRIB 110 Poncho 250 VT Double PRO RIB Complete Channel VT2PRIB 112 Poncho 250 VT Double PRO RIB Complete Channel VT2PRIB 113 Poncho 250 VT Double PRO RIB Complete Channel VT2PRIB 115 Poncho 250 VT Double PRO RIB Complete Channel TRERIB 115 Poncho 250 Trecepta RIB Complete Channel DGVT2PRIB 116 Poncho 250 VT Double PRO RIB Complete DEKALB DKC62-20RIB 112 Acceleron 250 VT Double PRO RIB Complete DEKALB DKC62-53RIB 112 Acceleron 250 VT Double PRO RIB Complete DEKALB DKC64-35RIB 114 Acceleron 250 VT Double PRO RIB Complete DEKALB DKC65-20RIB 115 Acceleron 250 VT Double PRO RIB Complete DEKALB DKC65-95RIB 115 Acceleron 250 VT Double PRO RIB Complete DEKALB DKC66-75RIB 116 Acceleron 250 VT Double PRO RIB Complete DEKALB DKC67-44RIB 117 Acceleron 250 VT Double PRO RIB Complete DEKALB DKC68-69RIB 118 Acceleron 250 VT Double PRO RIB Complete DEKALB DKC69-16RIB 119 Acceleron 500 SmartStax RIB Complete 4

7 Table 1. List of hybrids in the 2018 Virginia Corn Hybrid & Management Trials Brand Hybrid DTM per Co. 1 Insecticide Genetics DEKALB DKC70-27RIB 120 Acceleron 250 VT Double PRO RIB Complete Doebler's RPM 4417AMXT 104 CruiserMaxx Raxil AcreMax XTreme Doebler's RPM 4917AM 109 CruiserMaxx Raxil AcreMax Doebler's RPM 4919AM 109 CruiserMaxx Lumivia AcreMax Doebler's RPM 5018AMXT 110 CruiserMaxx Lumivia AcreMax XTreme Doebler's RPM 5319AM 113 CruiserMaxx Lumivia AcreMax Doebler's RPM 5518AMXT 115 CruiserMaxx Lumivia AcreMax XTreme Doebler's RPM 5719AM 117 CruiserMaxx Lumivia AcreMax Doebler's RPM 5818AM 118 CruiserMaxx Lumivia AcreMax Dyna-Gro D50VC Poncho 250 VT Double PRO Dyna-Gro D52VC Poncho 250 VT Double PRO Dyna-Gro D55VC Poncho 250 VT Double PRO Dyna-Gro D58VC Poncho 250 VT Double PRO Hubner Seed H4563RC2P 111 Acceleron 500/Poncho 500/VOTiVO 500 VT Double PRO RIB Complete Hubner Seed H4663RC2P 113 Acceleron 500/Poncho 500/VOTiVO 500 VT Double PRO RIB Complete Hubner Seed H6867RCSS 116 Acceleron 500/Poncho 500/VOTiVO 500 SmartStax RIB Complete Hubner Seed H4890RC2P 117 Acceleron 500/Poncho 500/VOTiVO 500 VT Double PRO RIB Complete Mid-Atlantic MA Acceleron 250 VT Double PRO Mid-Atlantic MA Acceleron 250 VT Double PRO Mid-Atlantic MA Acceleron 250 VT Double PRO Mid-Atlantic MA Acceleron 250 VT Double PRO Mid-Atlantic MA Acceleron 250 VT Double PRO Mid-Atlantic MA Acceleron 250 VT Double PRO Mid-Atlantic MA Acceleron 250 VT Double PRO Mid-Atlantic MA Acceleron 250 VT Double PRO Mid-Atlantic MA Acceleron 250 VT Double PRO MorCorn MC Poncho 1250 VT Double PRO MorCorn MC Poncho 1250 VT Double PRO MorCorn MC Poncho 1250 VT Double PRO NK N Avicta Complete Vibrance Agrisure Viptera 3110 NK NK Avicta Complete Vibrance Agrisure Viptera 3110 NK NK Avicta Complete Vibrance Agrisure Viptera

8 Table 1. List of hybrids in the 2018 Virginia Corn Hybrid & Management Trials Brand Hybrid DTM per Co. 1 Insecticide Genetics Phoenix 6507 A3 115 Avicta Complete 500 Agrisure 3000GT Phoenix 7402 A4 118 Avicta Complete 500 Agrisure Viptera 3111 Pioneer P0339AM 103 Poncho 1250/VOTiVO AcreMax Pioneer P1197AM 111 Poncho 1250/VOTiVO AcreMax Pioneer P1637AM 116 Poncho 1250/VOTiVO AcreMax Progeny PGY 6110VT2P 110 Poncho 500/VOTiVO EDC VT Double PRO Progeny PGY 7111VT2P 111 Poncho 500/VOTiVO EDC VT Double PRO Progeny PGY 4114V2P 114 Poncho 500/VOTiVO EDC VT Double PRO Progeny PGY EXP Poncho 500/VOTiVO EDC VT Double PRO Progeny PGY 5115VT2P 115 Poncho 500/VOTiVO EDC VT Double PRO Progeny PGY 8116SS 115 Poncho 500/VOTiVO EDC SmartStax Progeny PGY 6116VT2P 116 Poncho 500/VOTiVO EDC VT Double PRO Progeny PGY EXP Poncho 500/VOTiVO EDC VT Double PRO Progeny PGY 7118VT2P 118 Poncho 500/VOTiVO EDC VT Double PRO Progeny PGY 6119VT2P 119 Poncho 500/VOTiVO EDC VT Double PRO Seed Consultants SCS 1087YHR 108 CruiserMaxx 250 Intrasect Seed Consultants SC 11AQ CruiserMaxx 250 Agrisure 3000GT Seed Consultants SC 11AQ CruiserMaxx 250 Agrisure 3000GT Seed Consultants SCS EXP114YHR 114 CruiserMaxx 250 Intrasect Seed Consultants SCS 1158YHR 115 CruiserMaxx 250 Intrasect Seed Consultants SCS 1168YHR 116 CruiserMaxx 250 Intrasect Seed Consultants SC 11AQ CruiserMaxx 250 Agrisure 3000GT 1 Days to maturity provided by company; differences in maturity rating methods may exist between companies. Hybrids are arranged by Company, then days to maturity. 6

9 The Handy Bt Trait Table for U.S. Corn Production Posted at For questions, complaints, or corrections: Chris DiFonzo, Michigan State University, Contributors: Pat Porter, Texas A&M University & Kelley Tilmon, The Ohio State University Most corn hybrids planted in the U.S. contain one or more transgenic traits for weed or insect management. These traits can increase flexibility and profitability for producers, but sometimes cause confusion about their spectrum of control or refuge requirements. The Handy Bt Trait Table provides a helpful list of trait names (below) and details of trait packages (next page) to make it easier to read company seed guides, sales materials, and bag tags. Note that there are two versions of the table (north/midwest vs. south/cotton belt) which differ only in refuge percentages. Important clarifications or changes to the Trait Table for 2017 An insect is listed in the CONTROL SPECTRUM column if seed providers claim protection or efficacy for a given Bt package; insect species which are suppressed are no longer listed. Actual field-level performance of hybrids on lepidopteran and rootworm larvae may differ if there are local or regional insect populations which are less susceptible or resistant to Bt proteins. To address local or regional performance issues, a new column ( May be ineffective on ) was added to highlight insect x Bt toxins with documented field-failures, confirmed resistance, or cross-resistance. An insect is listed in this column only if ALL of the Bt proteins which should control it in a product are ineffective somewhere in the US or Canada. Ineffective ratings are based on published lab assays &/or field research from field corn, sweet corn, and cotton. University extension specialists or local educators can assist in determining if you are in an area where reduced effectiveness was reported. On a broader scale, this column is intended to alert growers and consultants to potentialmanagement problems, influence seed selection, and encourage field scouting. The refuge column was simplified to include only the % and an indication if the refuge is in the bag. Field corn events (transformations of one or more genes) and their Trade Names Updated 15 March 2017 Trade name for trait Event Protein(s) expressed Insect Target or Herbicide Activity Agrisure CB/LL Bt11 Cry1Ab + PAT corn borer + glufosinate tolerance Agrisure Duracade 5307 ecry3.1ab rootworm Agrisure GT GA21 EPSPS glyphosate tolerance Agrisure RW MIR604 mcry3a rootworm Agrisure Viptera MIR162 Vip3A broad lep control (but not corn borer) Herculex 1 or CB TC1507 Cry1Fa2 + PAT corn borer + glufosinate tolerance Herculex RW DAS Cry34Ab1/Cry35Ab1 + PAT rootworm + glufosinate tolerance Roundup Ready 2 NK603 EPSPS glyphosate tolerance Yieldgard Corn Borer MON810 Cry1Ab corn borer Yieldgard Rootworm MON863 Cry3Bb1 rootworm Yieldgard VT Pro MON89034 Cry1A Cry2Ab2 broader lep control Yieldgard VT Rootworm RR MON88017 Cry3Bb1 + EPSPS rootworm + glyphosate tolerance Abbreviations used in the Trait Table Herbicide activity GT glyphosate tolerant LL Liberty Link - glufosinate-tolerant RR2 Roundup Ready 2, glyphosate-tolerant Insect targets BCW black cutworm SB stalk borer CEW corn earworm SCB sugarcane borer ECB European corn borer SWCB southwestern corn borer 7 FAW fall armyworm TAW true armyworm RW corn rootworm WBC western bean cutworm

10 Bt corn trait packages with their Bt proteins, spectrum of control, & % refuge Updated 15 March 2017 Cry1Ab Cry1F Vip3A BCW CEW ECB FAW TRAIT FAMILY CONTROL SPECTRUM May be locally Specific Product Bt protein(s) Marketed for control of: above-ground in soil or regionally ineffective on: Herbicide tolerance Refuge % AGRISURE Agrisure 3010, 3010A Cry1Ab ECB SCB SWCB --- GT LL 20% Agrisure 3000GT, 3011A Cry1Ab mcry3a ECB SCB SWCB RW RW GT LL 20% Agrisure Viptera 3110 Cry1Ab Vip3A BCW CEW ECB FAW --- GT LL 20% SB SCB SWCB TAW WBC Agrisure Viptera 3111 Cry1Ab Vip3A BCW CEW ECB FAW RW RW GT LL 20% mcry3a SB SCB SWCB TAW WBC Agrisure Cry1Ab Cry1F BCW ECB FAW --- FAW, WBC REFER TO 5% in bag 3120 E-Z Refuge SB SCB SWCB WBC BAG TAG Agrisure Cry1Ab Cry1F BCW ECB FAW RW FAW, WBC for specific 5% in bag 3122 E-Z Refuge mcry3a Cry34/35Ab1 SB SCB SWCB WBC RW letter code: Agrisure Viptera Cry1Ab Cry1F Vip3A BCW CEW ECB FAW --- 5% in bag 3220 E-Z Refuge SB SCB SWCB TAW WBC EZ0 hybrids Agrisure Duracade Cry1Ab Cry1F BCW ECB FAW RW FAW, WBC = GT only 5% in bag 5122 E-Z Refuge mcry3a ecry3.1ab SB SWCB WBC RW Agrisure Duracade Cry1Ab Cry1F Vip3A BCW CEW ECB FAW RW RW EZ1 hybrids 5% in bag 5222 E-Z Refuge mcry3a ecry3.1ab SB SCB SWCB TAW WBC = GT LL HERCULEX Herculex 1 (HX1) Cry1F BCW ECB FAW --- FAW, SWCB, WBC LL 20% SB SCB SWCB WBC Herculex RW (HXRW) Cry34/35Ab1 --- RW RW RR2 20% Herculex XTRA (HXX) Cry1F BCW ECB FAW RW FAW, SWCB, WBC (most) 20% Cry34/35Ab1 SB SCB SWCB WBC RW OPTIMUM Intrasect (YHR) Cry1Ab Cry1F BCW ECB FAW --- FAW, WBC LL RR2 5% SB SCB SWCB WBC AcreMax (AM) Cry1Ab Cry1F BCW ECB FAW --- FAW, WBC LL RR2 5% in bag SB SCB SWCB WBC Leptra (VYHR) a --- LL RR2 a 5% ½ mile AcreMax Leptra (AML) b SB SCB SWCB TAW WBC b 5% in bag AcreMax RW (AMRW) Cry34/35Ab1 --- RW RW LL RR2 10% in bag AcreMax1 (AM1) Cry1F BCW ECB FAW RW FAW, SWCB, WBC LL RR2 10% in bag Cry34/35Ab1 SB SCB SWCB WBC RW 20% ECB TRIsect (CHR) Cry1F BCW ECB FAW RW FAW, SWCB, WBC LL RR2 20% mcry3a SB SCB SWCB WBC RW Intrasect TRIsect (CYHR) a Cry1Ab Cry1F BCW ECB FAW RW FAW, WBC LL RR2 a 20% AcreMax TRIsect (AMT) b mcry3a SB SCB SWCB WBC RW b 10% in bag Intrasect Xtra (YXR) a Cry1Ab Cry1F BCW ECB FAW RW FAW, WBC LL RR2 a 20% AcreMax Xtra (AMX) b Cry34/35Ab1 SB SCB SWCB WBC RW b 10% in bag Intrasect Xtreme (CYXR) a Cry1Ab Cry1F BCW ECB FAW RW FAW, WBC LL RR2 a 5% AcreMax XTreme (AMXT) b mcry3a Cry34/35Ab1 SB SCB SWCB WBC RW b 5% in bag YIELDGARD or GENUITY YieldGard CB (YGCB) Cry1Ab ECB SCB SWCB --- SCB RR2 20% YieldGard VT Rootworm Cry3Bb1 --- RW RW RR2 20% YieldGard VT Triple Cry1Ab ECB SCB SWCB RW SCB RR2 20% Cry3Bb1 RW Genuity VT Double PRO a or RIB complete b Cry1A.105 Cry2Ab2 CEW ECB FAW SB SCB SWCB --- CEW RR2 a 5% b 5% in bag Genuity VT Triple PRO a Cry1A.105 Cry2Ab2 CEW ECB FAW RW CEW RR2 a 20% or RIB complete b Cry3Bb1 SB SCB SWCB RW b 10% in bag Genuity SmartStax a Cry1A.105 Cry2Ab2 Cry1F BCW CEW ECB FAW RW CEW, WBC LL RR2 a 5% or RIB Complete b Cry3Bb1 Cry34/35Ab1 SB SCB SWCB WBC RW b 5% in bag OTHER Powercore a Cry1A.105 Cry2Ab2 Cry1F BCW CEW ECB FAW Powercore Refuge Adv. b SB SCB SWCB WBC --- CEW, WBC LL RR2 a 5% b 5% in bag Smartstax a Smartstax Refuge Adv. b Qrome Cry1A.105 Cry2Ab2 Cry1F Cry3Bb1 Cry34/35Ab1 Cry1Ab Cry1F mcry3a Cry34/35Ab1 BCW CEW ECB FAW SB SCB 8SWCB WBC BCW ECB FAW SB SCB SWCB WBC RW RW CEW, WBC RW FAW, WBC RW LL RR2 a 5% b 5% in bag LL RR2 5% in bag

11 Table RELATIVE YIELD* of corn hybrids entered in three or more locations - Virginia Tech Trials. DTM per Black- Mt Holly Mt Holly Black- Shenan- Brand/Company Hybrid Co. 1 Holland stone Dryland Irrigated burg Orange doah Mean <108 Days Relative Maturity Mid-Atlantic MA Augusta A Mid-Atlantic MA Mid-Atlantic MA Doebler's RPM 4417AMXT Mid-Atlantic MA Mid-Atlantic MA Channel VT2PRIB Channel VT2PRIB Pioneer P0339AM Mid-Atlantic MA Days Relative Maturity Channel VT2PRIB Channel VT2PRIB Hubner Seed H4563RC2P Augusta A Seed Consultants SCS 1087YHR AXIS 60P29RIB Doebler's RPM 5018AMXT Seed Consultants SC 11AQ Pioneer P1197AM Progeny PGY 7111VT2P Dyna-Gro D50VC Doebler's RPM 4919AM NK N Mid-Atlantic MA Doebler's RPM 4917AM Augusta A Progeny PGY 6110VT2P Days Relative Maturity 9

12 Table RELATIVE YIELD* of corn hybrids entered in three or more locations - Virginia Tech Trials. DTM per Black- Mt Holly Mt Holly Black- Shenan- Brand/Company Hybrid Co. 1 Holland stone Dryland Irrigated burg Orange doah Mean Channel VT2PRIB Mid-Atlantic MA Channel VT2PRIB Channel TRERIB Progeny PGY 8116SS DEKALB DKC65-95RIB Progeny PGY 4114V2P MorCorn MC DEKALB DKC65-20RIB Doebler's RPM 5319AM Seed Consultants SCS EXP114YHR AXIS 62A28RIB DEKALB DKC62-53RIB Mid-Atlantic MA Phoenix 6507 A DEKALB DKC64-35RIB AXIS 64D25RIB Hubner Seed H4663RC2P Dyna-Gro D52VC Seed Consultants SCS 1158YHR DEKALB DKC62-20RIB Doebler's RPM 5518AMXT Progeny PGY 5115VT2P Channel VT2PRIB MorCorn MC NK NK Augusta A Augusta A AXIS 64K24RIB Seed Consultants SC 11AQ Augusta A

13 Table RELATIVE YIELD* of corn hybrids entered in three or more locations - Virginia Tech Trials. DTM per Black- Mt Holly Mt Holly Black- Shenan- Brand/Company Hybrid Co. 1 Holland stone Dryland Irrigated burg Orange doah Mean Dyna-Gro D55VC Progeny PGY EXP Augusta A >115 Days Relative Maturity DEKALB DKC70-27RIB DEKALB DKC68-69RIB Hubner Seed H4890RC2P DEKALB DKC69-16RIB AXIS 66A22RIB Progeny PGY EXP DEKALB DKC67-44RIB DEKALB DKC66-75RIB AXIS 66R25RIB Progeny PGY 6119VT2P Hubner Seed H6867RCSS Doebler's RPM 5818AM Dyna-Gro D58VC Progeny PGY 6116VT2P Seed Consultants SCS 1168YHR Channel DGVT2PRIB NK NK Phoenix 7402 A Doebler's RPM 5719AM Pioneer P1637AM MorCorn MC Seed Consultants SC 11AQ * Relative yield is calculated by dividing the yield of a hybrid by the average yield of all hybrids of all maturities at that location. A hybrid with a relative yield of 105 was 5% above the average of all hybrids at that location. The value of 105 is not a yield but a value relative to all other yield values at that location. Relative yields are listed in order of descending mean values. 1 Days to maturity provided by company; differences in maturity rating methods may exist between companies. 11

14 Table 3. Two-year Average RELATIVE YIELD* ( ) of corn hybrids entered in three or more locations each year - Virginia Tech Trials. DTM per Number Relative Brand/Company Hybrid Co. 1 of Obs. 2 Yield <108 Days Relative Maturity Mid-Atlantic MA Mid-Atlantic MA Doebler's RPM 4417AMXT Mid-Atlantic MA Pioneer P0339AM Days Relative Maturity Channel VT2PRIB Dyna-Gro D50VC Pioneer P1197AM Seed Consultants SC 11AQ Progeny PGY 7111VT2P Doebler's RPM 4917AM Mid-Atlantic MA Days Relative Maturity Channel VT2PRIB Channel VT2PRIB DEKALB DKC65-20RIB Progeny PGY 8116SS MorCorn MC AXIS 64D25RIB Dyna-Gro D52VC Seed Consultants SCS 1158YHR DEKALB DKC64-35RIB DEKALB DKC62-20RIB AXIS 64K24RIB Augusta A Progeny PGY 5115VT2P Channel VT2PRIB >115 Days Relative Maturity DEKALB DKC70-27RIB Hubner Seed H4890RC2P DEKALB DKC67-44RIB AXIS 66A22RIB Doebler's RPM 5818AM DEKALB DKC66-75RIB Progeny PGY 6119VT2P Pioneer P1637AM Seed Consultants SCS 1168YHR Progeny PGY 6116VT2P NK NK MorCorn MC

15 Table 3. Two-year Average RELATIVE YIELD* ( ) of corn hybrids entered in three or more locations each year - Virginia Tech Trials. DTM per Number Relative Brand/Company Hybrid Co. 1 of Obs. 2 Yield Seed Consultants SC 11AQ * Relative yield is calculated by dividing the yield of a hybrid by the average yield of all hybrids of all maturities at that location. A hybrid with a relative yield of 105 was 5% above the average of all hybrids at that location. The value of 105 is not a yield but a value relative to all other yield values at that location. Relative yields are listed in order of descending mean values. A hybrid does not have to be entered in the same three locations each year. 1 Days to maturity provided by company; differences in maturity rating methods may exist between companies. 2 A higher number of site/year combinations provides a better estimate of hybrid performance than a single site/year location. 13

16 Table 4. Three-year Average RELATIVE YIELD* ( ) of corn hybrids entered in three or more locations each year - Virginia Tech Trials. DTM per Number Relative Brand/Company Hybrid Co. 1 of Obs. 2 Yield <108 Days Relative Maturity Doebler's RPM 4417AMXT Pioneer P0339AM Days Relative Maturity Pioneer P1197AM Seed Consultants SC 11AQ Doebler's RPM 4917AM Mid-Atlantic MA Days Relative Maturity AXIS 64D25RIB AXIS 64K24RIB Progeny PGY 5115VT2P >115 Days Relative Maturity AXIS 66A22RIB Progeny PGY 6119VT2P Pioneer P1637AM Progeny PGY 6116VT2P * Relative yield is calculated by dividing the yield of a hybrid by the average yield of all hybrids of all maturities at that location. A hybrid with a relative yield of 105 was 5% above the average of all hybrids at that location. The value of 105 is not a yield but a value relative to all other yield values at that location. Relative yields are listed in order of descending mean values. A hybrid does not have to be entered in the same three locations each year. 1 Days to maturity provided by company; differences in maturity rating methods may exist between companies. 2 A higher number of site/year combinations provides a better estimate of hybrid performance than a single site/year location. 14

17 Table 5. Corn Yields at the Tidewater AREC at HOLLAND, VIRGINIA in Virginia Tech Trials. <108 Days Relative Maturity Augusta A Pioneer P0339AM Doebler's RPM 4417AMXT Days Relative Maturity Maturity Average L.S.D. (0.05) C.V Seed Consultants SCS 1087YHR Progeny PGY 7111VT2P Doebler's RPM 5018AMXT Doebler's RPM 4919AM Seed Consultants SC 11AQ Hubner Seed H4563RC2P AXIS 60P29RIB Doebler's RPM 4917AM Progeny PGY 6110VT2P Pioneer P1197AM Days Relative Maturity Maturity Average L.S.D. (0.05) C.V AXIS 64D25RIB AXIS 62A28RIB DEKALB DKC65-20RIB NK NK MorCorn MC Progeny PGY 4114V2P Progeny PGY 8116SS DEKALB DKC62-20RIB Dyna-Gro D52VC Augusta A Progeny PGY EXP DEKALB DKC64-35RIB Augusta A MorCorn MC DEKALB DKC65-95RIB Augusta A Seed Consultants SCS EXP114YHR DEKALB DKC62-53RIB AXIS 64K24RIB Doebler's RPM 5319AM

18 Table 5. Corn Yields at the Tidewater AREC at HOLLAND, VIRGINIA in Virginia Tech Trials. Phoenix 6507 A Seed Consultants SCS 1158YHR Augusta A Dyna-Gro D55VC Hubner Seed H4663RC2P Doebler's RPM 5518AMXT Seed Consultants SC 11AQ Progeny PGY 5115VT2P >115 Days Relative Maturity Maturity Average L.S.D. (0.05) C.V DEKALB DKC68-69RIB DEKALB DKC67-44RIB Seed Consultants SCS 1168YHR DEKALB DKC70-27RIB Doebler's RPM 5818AM AXIS 66R25RIB Progeny PGY 6116VT2P DEKALB DKC69-16RIB NK NK MorCorn MC Progeny PGY EXP Hubner Seed H6867RCSS Progeny PGY 6119VT2P DEKALB DKC66-75RIB Seed Consultants SC 11AQ Phoenix 7402 A Dyna-Gro D58VC Pioneer P1637AM Hubner Seed H4890RC2P Doebler's RPM 5719AM AXIS 66A22RIB Maturity Average L.S.D. (0.05) C.V Location Average Days to maturity provided by company; differences in maturity rating methods may exist between companies. 2 Reported at 15.5% moisture. Planted April 19, Harvested August 30,

19 Table 6. Two-year Average Corn Yields at the Tidewater AREC at HOLLAND, VIRGINIA in 2017 and Virginia Tech Trials. <108 Days Relative Maturity Pioneer P0339AM Doebler's RPM 4417AMXT Days Relative Maturity Maturity Average L.S.D. (0.05) C.V Pioneer P1197AM Progeny PGY 7111VT2P Doebler's RPM 4917AM Days Relative Maturity Maturity Average L.S.D. (0.05) C.V Dyna-Gro D52VC AXIS 64D25RIB DEKALB DKC65-20RIB Augusta A Progeny PGY 8116SS DEKALB DKC64-35RIB DEKALB DKC62-20RIB AXIS 64K24RIB Progeny PGY 5115VT2P >115 Days Relative Maturity Maturity Average L.S.D. (0.05) C.V DEKALB DKC67-44RIB Doebler's RPM 5818AM DEKALB DKC70-27RIB NK NK Hubner Seed H4890RC2P Progeny PGY 6116VT2P Progeny PGY 6119VT2P Pioneer P1637AM DEKALB DKC66-75RIB AXIS 66A22RIB

20 Table 6. Two-year Average Corn Yields at the Tidewater AREC at HOLLAND, VIRGINIA in 2017 and Virginia Tech Trials. Maturity Average L.S.D. (0.05) C.V Location Average Days to maturity provided by company; differences in maturity rating methods may exist between companies. 2 Reported at 15.5% moisture. 18

21 Table 7. Three-year Average Corn Yields at the Tidewater AREC at HOLLAND, VIRGINIA, Virginia Tech Trials. <108 Days Relative Maturity Pioneer P0339AM Doebler's RPM 4417AMXT Days Relative Maturity Maturity Average L.S.D. (0.05) C.V Pioneer P1197AM Doebler's RPM 4917AM Days Relative Maturity Maturity Average L.S.D. (0.05) C.V AXIS 64D25RIB AXIS 64K24RIB Progeny PGY 5115VT2P >115 Days Relative Maturity Maturity Average L.S.D. (0.05) C.V Progeny PGY 6119VT2P Progeny PGY 6116VT2P AXIS 66A22RIB Pioneer P1637AM Maturity Average L.S.D. (0.05) C.V Location Average Days to maturity provided by company; differences in maturity rating methods may exist between companies. 2 Reported at 15.5% moisture. 19

22 Table 8. Corn Yields under DRYLAND conditions at the Virginia Crop Improvement Foundation Seed Farm at MT HOLLY, VIRGINIA in Virginia Tech Trials. <108 Days Relative Maturity Mid-Atlantic MA Mid-Atlantic MA Mid-Atlantic MA Augusta A Mid-Atlantic MA Channel VT2PRIB Channel VT2PRIB Mid-Atlantic MA Pioneer P0339AM Mid-Atlantic MA Doebler's RPM 4417AMXT Days Relative Maturity Maturity Average L.S.D. (0.05) C.V Hubner Seed H4563RC2P Dyna-Gro D50VC Channel VT2PRIB Augusta A Channel VT2PRIB Doebler's RPM 5018AMXT Augusta A AXIS 60P29RIB Progeny PGY 7111VT2P Doebler's RPM 4919AM Seed Consultants SCS 1087YHR Seed Consultants SC 11AQ Pioneer P1197AM Mid-Atlantic MA Progeny PGY 6110VT2P Doebler's RPM 4917AM Maturity Average L.S.D. (0.05) C.V

23 Table 8. Corn Yields under DRYLAND conditions at the Virginia Crop Improvement Foundation Seed Farm at MT HOLLY, VIRGINIA in Virginia Tech Trials Days Relative Maturity Mid-Atlantic MA Dyna-Gro D52VC DEKALB DKC65-20RIB DEKALB DKC65-95RIB MorCorn MC DEKALB DKC62-53RIB DEKALB DKC62-20RIB AXIS 64D25RIB Seed Consultants SCS 1158YHR Channel VT2PRIB DEKALB DKC64-35RIB AXIS 62A28RIB Phoenix 6507 A Dyna-Gro D55VC NK NK Mid-Atlantic MA Augusta A Doebler's RPM 5319AM Hubner Seed H4663RC2P Seed Consultants SCS EXP114YHR Progeny PGY 4114V2P Progeny PGY 5115VT2P Augusta A AXIS 64K24RIB Doebler's RPM 5518AMXT MorCorn MC Progeny PGY 8116SS Channel VT2PRIB Augusta A Seed Consultants SC 11AQ Progeny PGY EXP >115 Days Relative Maturity Maturity Average L.S.D. (0.05) C.V Progeny PGY 6119VT2P Progeny PGY EXP Hubner Seed H4890RC2P AXIS 66R25RIB Hubner Seed H6867RCSS DEKALB DKC69-16RIB

24 Table 8. Corn Yields under DRYLAND conditions at the Virginia Crop Improvement Foundation Seed Farm at MT HOLLY, VIRGINIA in Virginia Tech Trials. DEKALB DKC66-75RIB DEKALB DKC67-44RIB Seed Consultants SC 11AQ Seed Consultants SCS 1168YHR AXIS 66A22RIB Doebler's RPM 5719AM DEKALB DKC68-69RIB Doebler's RPM 5818AM DEKALB DKC70-27RIB Dyna-Gro D58VC Pioneer P1637AM NK NK Progeny PGY 6116VT2P Phoenix 7402 A MorCorn MC Maturity Average L.S.D. (0.05) C.V Location Average Days to maturity provided by company; differences in maturity rating methods may exist between companies. 2 Reported at 15.5% moisture. Planted April 30, Harvested September 19, Population was 25,100 plants/acre. 22

25 Table 9. Two-year Average Corn Yields under DRYLAND conditions at the Virginia Crop Improvement Foundation Seed Farm at MT HOLLY, VIRGINIA in 2017 and Virginia Tech Trials. <108 Days Relative Maturity Mid-Atlantic MA Mid-Atlantic MA Doebler's RPM 4417AMXT Mid-Atlantic MA Pioneer P0339AM Maturity Average L.S.D. (0.05) C.V Days Relative Maturity Dyna-Gro D50VC Channel VT2PRIB Seed Consultants SC 11AQ Progeny PGY 7111VT2P Pioneer P1197AM Doebler's RPM 4917AM Mid-Atlantic MA Maturity Average L.S.D. (0.05) C.V Days Relative Maturity Dyna-Gro D52VC MorCorn MC AXIS 64D25RIB DEKALB DKC65-20RIB Progeny PGY 5115VT2P DEKALB DKC62-20RIB Progeny PGY 8116SS DEKALB DKC64-35RIB Seed Consultants SCS 1158YHR AXIS 64K24RIB Channel VT2PRIB Maturity Average L.S.D. (0.05) C.V

26 Table 9. Two-year Average Corn Yields under DRYLAND conditions at the Virginia Crop Improvement Foundation Seed Farm at MT HOLLY, VIRGINIA in 2017 and Virginia Tech Trials. >115 Days Relative Maturity DEKALB DKC67-44RIB Progeny PGY 6119VT2P Hubner Seed H4890RC2P DEKALB DKC66-75RIB Seed Consultants SCS 1168YHR DEKALB DKC70-27RIB AXIS 66A22RIB Seed Consultants SC 11AQ Pioneer P1637AM Doebler's RPM 5818AM Progeny PGY 6116VT2P NK NK MorCorn MC Maturity Average L.S.D. (0.05) C.V Location Average Days to maturity provided by company; differences in maturity rating methods may exist between companies. 2 Reported at 15.5% moisture. 24

27 Table 10. Three-year Average Corn Yields under DRYLAND conditions at the Virginia Crop Improvement Foundation Seed Farm at MT HOLLY, VIRGINIA, Virginia Tech Trials. <108 Days Relative Maturity Mid-Atlantic MA Doebler's RPM 4417AMXT Pioneer P0339AM Maturity Average L.S.D. (0.05) C.V Days Relative Maturity Mid-Atlantic MA Doebler's RPM 4917AM Seed Consultants SC 11AQ Pioneer P1197AM Maturity Average L.S.D. (0.05) C.V Days Relative Maturity Progeny PGY 5115VT2P AXIS 64K24RIB AXIS 64D25RIB Maturity Average L.S.D. (0.05) C.V >115 Days Relative Maturity AXIS 66A22RIB Progeny PGY 6119VT2P Pioneer P1637AM Progeny PGY 6116VT2P Maturity Average L.S.D. (0.05) C.V Location Average Days to maturity provided by company; differences in maturity rating methods may exist between companies. 2 Reported at 15.5% moisture. 25

28 Table 11. Corn Yields under IRRIGATED conditions at the Virginia Crop Improvement Foundation Seed Farm at MT HOLLY, VIRGINIA in Virginia Tech Trials. <108 Days Relative Maturity Augusta A Mid-Atlantic MA Mid-Atlantic MA Mid-Atlantic MA Mid-Atlantic MA Doebler's RPM 4417AMXT Channel VT2PRIB Mid-Atlantic MA Pioneer P0339AM Channel VT2PRIB Mid-Atlantic MA Days Relative Maturity Maturity Average L.S.D. (0.05) C.V Progeny PGY 7111VT2P Channel VT2PRIB Channel VT2PRIB AXIS 60P29RIB Doebler's RPM 4917AM Seed Consultants SCS 1087YHR Doebler's RPM 4919AM Hubner Seed H4563RC2P Doebler's RPM 5018AMXT Mid-Atlantic MA Augusta A Augusta A Seed Consultants SC 11AQ Dyna-Gro D50VC Pioneer P1197AM Progeny PGY 6110VT2P Maturity Average L.S.D. (0.05) C.V

29 Table 11. Corn Yields under IRRIGATED conditions at the Virginia Crop Improvement Foundation Seed Farm at MT HOLLY, VIRGINIA in Virginia Tech Trials Days Relative Maturity Progeny PGY 4114V2P Phoenix 6507 A DEKALB DKC62-53RIB Channel VT2PRIB Hubner Seed H4663RC2P Augusta A Doebler's RPM 5518AMXT Augusta A Seed Consultants SC 11AQ Mid-Atlantic MA Doebler's RPM 5319AM AXIS 62A28RIB Progeny PGY 8116SS MorCorn MC DEKALB DKC65-95RIB AXIS 64K24RIB MorCorn MC DEKALB DKC64-35RIB Progeny PGY EXP Mid-Atlantic MA Channel VT2PRIB Augusta A Seed Consultants SCS EXP114YHR Dyna-Gro D55VC Progeny PGY 5115VT2P Dyna-Gro D52VC DEKALB DKC62-20RIB Seed Consultants SCS 1158YHR AXIS 64D25RIB DEKALB DKC65-20RIB NK NK >115 Days Relative Maturity Maturity Average L.S.D. (0.05) C.V Progeny PGY 6116VT2P Hubner Seed H4890RC2P Progeny PGY 6119VT2P DEKALB DKC67-44RIB DEKALB DKC68-69RIB Hubner Seed H6867RCSS