Virginia Tech Corn Silage Testing 2011

Transcription

1 CSES-1 Virginia Tech Corn Silage Testing 2011 Virginia Coopera ve Extension programs and employment are open to all, regardless of race, color, na onal origin, sex, religion, age, disability, poli cal beliefs, sexual orienta on, or marital or family status. An equal opportunity/affirma ve ac on employer. Issued in furtherance of Coopera ve Extension work, Virginia Polytechnic Ins tute and State University, Virginia State University, and the U.S. Department of Agriculture coopera ng. Edwin J. Jones, Director, Virginia Coopera ve Extension, Virginia Tech, Blacksburg; Jewel E. Harriston, Interim Administrator, 1890 Extension Program, Virginia State, Petersburg. 1

2 THE 2011 VIRGINIA CORN SILAGE HYBRID TRIALS Table of Contents... 2 Companies participating in the 2011 Corn Silage Hybrid Trials Corn Silage Hybrid Trials Narrative Corn Silage Plot Information... 6 Table 1. List of Hybrids in 2011 VA Tech Corn Silage Hybrid Test... 7 Table 2. Bt Corn Insect Traits... 9 Table 3. Multi-year, Multi-site Relative Ton per Acre (Yield) Table 4. Multi-year, Multi-site Relative Milk per Ton (Quality) Table 5. Multi-year, Multi-site Relative Milk per Acre (Yield x Quality) Table Corn Silage Test Results at the Shenandoah Valley Site Table 7. Two Year Average Corn Silage Test Results (2010 and 2011) at the Shenandoah Valley Site Table 8. Three Year Average Corn Silage Test Results (2009, 2010 and 2011) at the Shenandoah Valley Site Table Corn Silage Test Results at the Northern Piedmont Site Table 10. Two Year Average Corn Silage Test Results (2010 and 2011) at the Northern Piedmont Site Table Corn Silage Test Results at the Southern Piedmont Site Table 12. Two Year Average Corn Silage Test Results (2010 and 2011) at the Southern Piedmont Site Table 13. Three Year Average Corn Silage Test Results (2009, 2010 and 2011) at the Southern Piedmont Site Table Corn Silage Test Results at the Southwest/Mountain Site Table 15. Two Year Average Corn Silage Test Results (2010 and 2011) at the Southwest/Mountain Site Table 16. Three Year Average Corn Silage Test Results (2009, 2010 and 2011) at the Southwest/Mountain Site Figure 1. Average Relative Yield versus Quality for All Test Sites in Figure 2. High Yielding and High Quality Hybrids in at Least 3 Site/Year Combinations in

3 THE 2011 VIRGINIA CORN SILAGE HYBRID TRIALS Coordinated by H. Behl, E. Hokanson, and W. Thomason Department of Crop and Soil Environmental Sciences Virginia Tech, Blacksburg, VA Other contributors: Monte and Gerald Heatwole and Cub Run Dairy; Matt Yancey; Steve Gulick; Alvin Hood; Chris Teutsch; Ned Jones; Phil Blevins; Johnny Robinson. COMPANIES PARTICIPATING IN THE 2011 CORN SILAGE TRIALS Company Brand Address Augusta Seed Augusta Seed 473 Tisdale Farm Lane, Staunton, VA Doeblers PA Hybrids, Inc Doebler s and RPM 202 Tiadaghton Ave., Jersey Shore, PA Dow AgroSciences Mycogen Seeds 9330 Zionsville Rd., Indianapolis, IN Dyna-Gro Seed Dyna-Gro P.O. Box 409, St. Stephens Church, VA King s AgriSeeds Masters Choice 60 North Ronks Rd. Suite K, Ronks, PA Mid-Atlantic Seeds, Inc Mid-Atlantic Seeds 204 St. Charles Way #163, York, PA Monsanto ChannelBio 612 East Dunlap Street, Kentland, IN Monsanto DEKALB 800 N Lindbergh Blvd., St Louis, MO Pioneer Hi-Bred International Pioneer 700 Boulevard South Suite 302, Huntsville, AL Seed Consultants, Inc Seed Consultants P.O. Box 370, Washington Courthouse, OH Southern States Cooperative, Inc Southern States 6606 West Broad St., Richmond, VA Syngenta Garst and NK Brand Wayzata Blvd., Minnetonka, MN T.A. Seeds T.A. Seeds 39 Seeds Lane, Jersey Shore, PA Winfield Solutions Croplan Genetics th Avenue South, Ft. Dodge, IA NARRATIVE This report contains the results for performance trials from commercial corn hybrids produced for silage at four locations in Virginia in 2011 as well as two and three year average performance, when available. In order to avoid problems with comparisons over sites and years, multi-year yields are presented as a percentage of the total at that particular site-year combination called relative yield. All locations were planted with a Wintersteiger PlotKing 2600 planter and harvested with commercial silage equipment. Yields are presented on a dry matter and 35% dry matter basis for comparison. All hybrids entered in the Virginia trials were submitted for testing 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 Silage Performance 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 due to uncontrollable variation has been computed for the data and listed at the bottom of columns as the LSD (.10) (least significant difference with 3

4 90% confidence). Differences less than the LSD are assumed not to be real differences with 90% confidence. Hybrid Choices Multi-year results are more reliable than single-year results. When making hybrid selections it is important to realize that hybrids differ in their performance under different environments. Some hybrids are more adapted to a wide range of environments. Hybrid performance may differ with year and location variations of 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 yield across locations when making selections. Multi-year averages give greater confidence to hybrid performance decisions. 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. Understanding Relative Yield Companies entering silage hybrids decide which hybrids are planted at which locations. In 2011, some hybrids were planted at all four locations and others at only one or two sites. 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 above-average. 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% above the average yield for all hybrids at that site. Selecting hybrids for both yield and quality. Milk2006 is used to condense multiple corn silage quality and digestibility factors into one easy-tocompare milk per ton number. This system also generates a milk per acre rating for each hybrid, calculated by multiplying yield (tons per acre) by quality (lbs of milk per ton). The same problem described above for multi-site yield comparisons exists for yield by quality comparisons: not all hybrids were tested at all sites. Therefore, relative quality and relative yield x quality ratings were calculated. 4

5 Milk2006 is a system developed by University of Wisconsin researchers to simplify quality comparisons between corn silage samples. Included in the analysis are variety identification, kernel processing, dry matter, crude protein,, in-vitro digestibility, starch percent and yield per acre. Compared to Milk2000, Milk2006 values more accurately address the effects of fiber digestibility on silage quality. Milk2006 has proven to more accurately reflect actual milk production than earlier versions of the program. Values presented in previous years using Milk2000 have been recalculated using Milk2006 in this publication for the purpose of over-years comparisons. Milk2006 was designed solely as an index to be used when making quality comparisons between silage samples or hybrids. Milk per ton or milk per acre numbers should not be used to predict actual milk production on your farm. Milk per ton is more accurate at predicting cow performance since it includes quality factors that affect milk production. Milk per acre allows consideration of yield as well as quality factors. Use other information. Consider as much other information as possible from other independent sources before selecting hybrids. Look for agronomic as well as silage quality data. 5

6 2011 VIRGINIA CORN SILAGE PLOT INFORMATION (Rates are on a per acre basis.) Blackstone Southern Piedmont Agricultural Research & Extension Center (notill site) Planted: April 18, 2011 Harvested: August 31, 2011 Pesticide: 5 lb Force 3G at planting; 1.5 pt Dual II Magnum + 4 qt atrazine 4L April 19, Fertilizer: 1000 lb preplant incorporated April 14, 2011; 17 gal S-.13B-.25Zn at planting; 80 lb N topdressed using May 19, Plot Size: 2 rows 25' x 30" 4 replications Soil Type: Spotsylvania-Cecil-Bourne Sandy Loam Cooperator: Ned Jones Orange Northern Piedmont Agricultural Research & Extension Center Planted: May 31, 2011 Harvested: August 11-12, 2011 Pesticide: 5 lb Force 3G at planting; 3 qt Lumax + 1 qt atrazine + 1 qt gramoxone May 2, Fertilizer: preplant incorporated April 29, 2011; 17 gal S-.13B-.25Zn at planting;100 lb N sidedressed June 8, Plot Size: 2 rows 25' x 30" 4 replications Soil Type: Davidson silty clay loam Cooperators: Steve Gulick and Alvin Hood Shenandoah Valley (Lynnwood - Thanks to Monte and Gerald Heatwole at Cub Run Dairy) Planted: May 6, 2011 Harvested: August 24, 2011 Pesticide: Burndown of rye cover with 2.5 qt gramoxone April 28, 2011; 5 lb Force 3G at planting; 1.5 qt Aatrex (atrazine) qt Princep oz Asana with fertilizer May 11, 2011; 1.5 qt Prowl oz Profine (generic Permit) qt Touchdown Total (glyphosate). Fertilizer: Preplant broadcast 4 tons dairy heifer bed pack ; 17 gal S-.127B-.25Zn at planting; 50 lb K + 20 lb S + chemicals May 11, 2011; 0.5 lb B + chemicals June 8, 2011; sidedress 100 lb N = 5 lb S June 22, Plot Size: 2 rows 35' x 30" 4 replications Soil Type: Allegheny fine sandy loam Cooperators: Matt Yancey and Monte Heatwole Washington County (Thanks to Johnny Robinson) Planted: June 1, 2011 Harvested: September 19, 2011 Pesticide: 5 lb Force 3G at planting; burndown of cover with Roundup and 2,4-D; 2 qt Lumax ; spot treatment with Accent for johnsongrass. Fertilizer: 70 lb N with NutriSphere preplant; 17 gal S-.127B-.25Zn at planting; 100 lb N with NutriSphere topdress. Plot Size: 2 rows 35' x 30" 4 replications Soil Type: Wyrick-Marbie Cooperators: Phil Blevins and Johnny Robinson 6

7 Table 1. List of Hybrids in the 2011 VA Tech Corn Silage Hybrid Test Brand Hybrid Trait Group 1 DTM 2 OBS 3 Augusta A5560VT Augusta A5461GTCBLLA Augusta A5462GT3000A Augusta A6164GT Augusta A5464GTCBLL Augusta A7664VT3P Augusta A6465GTCBLL Augusta A6166GT3000A Augusta A6266GT Augusta A6166CBLLC Augusta A6867CBLL Augusta A6867GTCBLLA Augusta A9169VT Augusta A7669GTCBLL ChannelBio VT ChannelBio VT3P ChannelBio VT3P ChannelBio VT Croplan Genetics 6725VT3/P Croplan Genetics 7505VT Croplan Genetics 8221VT Croplan Genetics 8756VT DEKALB DKC62-54 VT DEKALB DKC63-84 VT DEKALB DKC64-69 VT3P DEKALB DKC66-96 VT3P DEKALB DKC68-05 VT3P Doebler's 674GRQ Dyna-Gro V5294HXTRNS Dyna-Gro D55Q Dyna-Gro V5683VT Dyna-Gro D56VP Dyna-Gro D57GT Dyna-Gro D58VP Garst Brand 82R GT Brand Master's Choice MCT GT Master's Choice MCT 6751 GT Mid-Atlantic Seeds MA5061GT Mid-Atlantic Seeds MA8129VT3P Mid-Atlantic Seeds MAX Mid-Atlantic Seeds MA5151GTCBLL Mid-Atlantic Seeds MA8151VT3P Mid-Atlantic Seeds MA5091GT Mid-Atlantic Seeds MA8150VT Mid-Atlantic Seeds MA8167VT3P Mid-Atlantic Seeds MA7161HXT

8 Table 1, continued. List of Hybrids in the 2011 VA Tech Corn Silage Hybrid Test Brand Hybrid Trait Group 1 DTM 2 OBS 3 Mid-Atlantic Seeds MA8171VT Mid-Atlantic Seeds MA8127VT3P Mycogen Seeds F2F Mycogen Seeds TMF2W Mycogen Seeds TMF2L NK Brand N74R-3000GT Brand Pioneer P1184AM Pioneer 33F90AM Pioneer P1745HR Pioneer 31G67AM RPM RPM 694HRQ RPM RPM 723HXR RPM RPM 728HXR Seed Consultants SCS 11HR Seed Consultants SC 11GT22 GT Only Seed Consultants SCS 11HQ Seed Consultants SCS 11HQ Seed Consultants SCS 11HQ Seed Consultants SC 11AXX Seed Consultants SCS 11HQ Seed Consultants SCS 11HR Seed Consultants SCS 11HQ Seed Consultants SC 11AGT Southern States SS 788 GENVT3PRO Southern States SS 787 GENVT3PRO Southern States SS 818 GENVT3PRO Southern States SS 868 GENVT3PRO T.A. Seeds TA T.A. Seeds TA615-16ND T.A. Seeds TA T.A. Seeds TA T.A. Seeds TA780-13V T.A. Seeds TA Trait Group according to Table 2. 2 Days to maturity (DTM) provided by company; differences in maturity rating methods may exist. 3 Number of observations hybrid occurred (OBS); the greater the observations, the more reliable the data. Shaded hybrids indicate hybrids entered in less than 3 locations. Hybrids are sorted by Brand then DTM. 8

9 Table 2. Bt Corn Insect Traits Number Trait Group Insects controlled or suppressed Herbicide tolerance Agrisure (Syngenta + Mycogen/DowAgro) 1 Agrisure CB/LL ECB CEW, FAW, SB LL 2 Agrisure GT/CB/LL ECB CEW, FAW, SB GT, LL 3 Agrisure RW CRW -- 4 Agrisure GT/RW CRW GT 5 Agrisure CB/LL/RW CRW, ECB CEW, FAW, SB LL 6 Agrisure 3000GT CRW, ECB CEW, FAW, SB GT, LL BCW, CEW, ECB, FAW, WBC 7 Agrisure Viptera 3110 SB GT, LL BCW, CEW, CRW, ECB, FAW, 8 Agrisure Viptera 3111 WBC SB GT, LL Herculex (Mycogen/DowAgro) 9 Herculex 1 BCW, ECB, FAW, WBC CEW LL, RR2 10 Herculex RW CRW LL 11 Herculex XTRA BCW, CRW, ECB, FAW, WBC CEW LL RR2(some) Optimum (DuPont/Pioneer) BCW, CRW, ECB, FAW, WBC 12 Optimum AcreMax1 CEW LL, RR2 13 Optimum AcreMax RW CRW RR2 ECB, WBC, BCW, FAW 14 Optimum Intrasect Insect Protection CEW, SB LL, RR2 YieldGard (Monsanto) 15 YieldGard CB (YGCB) ECB CEW, FAW, SB RR2(some) 16 YieldGard RW (YGRW) CRW RR2(some) 17 YieldGard Plus CRW, ECB CEW, FAW, SB RR2(some) 18 YieldGard VT Rootworm CRW RR2 19 YieldGard VT Triple (VT3) CRW, ECB CEW, FAW, SB RR2 Genuity (Monsanto or Monsanto + Mycogen/DowAgro) 20 Genuity VT Double Pro (VT2P) CEW, ECB, FAW RR2 21 Genuity VT Triple Pro (VT3P) CEW, CRW, ECB, FAW RR2 BCW, CEW, CRW, ECB, FAW, 22 SmartStax or Genuity SmartStax (GENSS) WBC RR2, LL University of Wisconsin Integrated Pest and Crop Management webpage, posted 5/13/10 Many thanks to Eileen Cullen, Extension Entomologist, University of Wisconsin 9

10 Table 3. Multi-year, Multi-site Relative Ton per Acre (Yield) Brand Hybrid DTM per Co. 1 Shenandoah Valley Northern Piedmont Southern Piedmont Southwest / Mountain Multi-Site Average Relative Ton per Acre Southern States SS 788 GENVT3PRO * Dyna-Gro V5683VT * 120 * 117 * 124 * 119 * 116 * 118 * Southern States SS 868 GENVT3PRO * 120 * * Seed Consultants SCS 11HR * 116 * * Augusta A5462GT3000A * 114 * * 115 * RPM RPM 723HXR * 111 * * T.A. Seeds TA780-13V * * 101 * Augusta A5461GTCBLLA * 103 * 116 * * 115 * * Pioneer 31G67AM * * Augusta A6166GT3000A * * 111 * Augusta A5560VT * * Mycogen Seeds TMF2W * 108 * Dyna-Gro D58VP * * Seed Consultants SCS 11HQ * 111 * ChannelBio VT3P * 111 * * Southern States SS 818 GENVT3PRO * T.A. Seeds TA * * Croplan Genetics 8756VT * 104 * * Croplan Genetics 8221VT * 105 * 112 * Pioneer P1184AM * ChannelBio VT * * 105 * Seed Consultants SCS 11HQ * * T.A. Seeds TA * * Pioneer P1745HR * 122 * Dyna-Gro V5294HXTRNS * * Seed Consultants SCS 11HR * ChannelBio VT * Garst Brand 82R GT Brand * RPM RPM 694HRQ * 115 * Number of Obs. 2 10

11 Table 3, continued. Multi-year, Multi-site Relative Ton per Acre (Yield) Brand Hybrid DTM per Co. 1 Shenandoah Valley Northern Piedmont Southern Piedmont Southwest / Mountain Multi-Site Average Relative Ton per Acre Number of Obs. 2 Mid-Atlantic Seeds MA7161HXT * T.A. Seeds TA * DEKALB DKC68-05 VT3P * Mid-Atlantic Seeds MA8167VT3P * * 105 * Augusta A5464GTCBLL Mid-Atlantic Seeds MA8171VT * * Augusta A6164GT * 109 * Mid-Atlantic Seeds MA8127VT3P * Master's Choice MCT GT * Augusta A6867GTCBLLA * 116 * DEKALB DKC64-69 VT3P * * ChannelBio VT3P * Mid-Atlantic Seeds MA5061GT * Augusta A6867CBLL * * Augusta A7664VT3P * RPM RPM 728HXR * Doebler's 674GRQ * Croplan Genetics 6725VT3/P Augusta A6465GTCBLL Seed Consultants SC 11AGT * DEKALB DKC62-54 VT T.A. Seeds TA615-16ND * Seed Consultants SCS 11HQ * Pioneer 33F90AM * Seed Consultants SCS 11HQ * Seed Consultants SCS 11HQ Augusta A9169VT * 98 5 Southern States SS 787 GENVT3PRO *

12 Table 3, continued. Multi-year, Multi-site Relative Ton per Acre (Yield) Brand Hybrid DTM per Co. 1 Shenandoah Valley Northern Piedmont Southern Piedmont Southwest / Mountain Multi-Site Average Relative Ton per Acre Number of Obs. 2 Master's Choice MCT 6751 GT DEKALB DKC66-96 VT3P * Mycogen Seeds TMF2L Croplan Genetics 7505VT * 96 4 Seed Consultants SC 11GT Mid-Atlantic Seeds MA5151GTCBLL Seed Consultants SC 11AXX * 96 4 Mid-Atlantic Seeds MA8150VT * Augusta A6166CBLLC * 95 3 DEKALB DKC63-84 VT Mid-Atlantic Seeds MA8151VT3P Dyna-Gro D57GT Augusta A7669GTCBLL * 94 4 Dyna-Gro D55Q T.A. Seeds TA NK Brand N74R-3000GT Brand * 93 2 Mid-Atlantic Seeds MA8129VT3P Dyna-Gro D56VP Augusta A6266GT Mid-Atlantic Seeds MA5091GT Mycogen Seeds F2F * Mid-Atlantic Seeds MAX Days to maturity provided by company; differences in maturity rating methods may exist between companies. 2 Hybrids that were tested over more site/year combinations provide a better estimate of hybrid performance than those tested only in a single site/year location. 3 Relative Ton per Acre (yield) calculated by dividing Ton per Acre for each hybrid at each site/year by the average Ton per Acre for that site/year. Numbers over 100 indicate above-average yield, 100 indicates average yield, numbers under 100 indicate below-average yield. * Indicates numbers not significantly different from the highest value in that column (i.e. within one LSD of the top performer.) Shading indicates hybrids that were in the highest yielding group in at least three site years. 12

13 13

14 Table 4. Multi-year, Multi-site Relative Milk per Ton (Quality) Brand Hybrid DTM per Co. 1 Shenandoah Valley Northern Piedmont Southern Piedmont Southwest / Mountain Multi-Site Average Relative Milk per Ton Mid-Atlantic Seeds MA8151VT3P * 104 * 110 * 103 * Dyna-Gro V5294HXTRNS * 105 * 100 * 105 * 105 * 106 * 103 * 107 * Mid-Atlantic Seeds MA8150VT * 101 * 108 * * 110 * Southern States SS 788 GENVT3PRO * Seed Consultants SCS 11HR * 103 * * Mycogen Seeds F2F * 107 * 100 * 110 * Mid-Atlantic Seeds MA8171VT * 104 * * T.A. Seeds TA615-16ND * * 105 * Croplan Genetics 7505VT * 103 * * Seed Consultants SCS 11HQ * * 107 * * * Augusta A6867GTCBLLA * 102 * * Croplan Genetics 8221VT * * 106 * Augusta A7664VT3P * 100 * * Garst Brand 82R GT Brand * Augusta A6867CBLL * * T.A. Seeds TA780-13V * * 107 * Seed Consultants SCS 11HQ * 101 * * ChannelBio VT * 102 * 100 * * * ChannelBio VT * 102 * 106 * Augusta A6166CBLLC * * Mycogen Seeds TMF2W * 102 * Pioneer 33F90AM * 101 * * Dyna-Gro D55Q * 102 * * DEKALB DKC68-05 VT3P * 101 * * Mid-Atlantic Seeds MAX * * Southern States SS 868 GENVT3PRO * * Mid-Atlantic Seeds MA7161HXT * Master's Choice MCT 6751 GT * Seed Consultants SCS 11HQ * * Number of Obs. 2 14

15 Table 4, continued. Multi-year, Multi-site Relative Milk per Ton (Quality) Brand Hybrid DTM per Co. 1 Shenandoah Valley Northern Piedmont Southern Piedmont Southwest / Mountain Multi-Site Average Relative Milk per Ton T.A. Seeds TA * * RPM RPM 723HXR * * RPM RPM 728HXR * * Dyna-Gro D57GT * * DEKALB DKC63-84 VT * 104 * 101 * * Dyna-Gro D58VP * 100 * * Augusta A6465GTCBLL * Seed Consultants SCS 11HQ * 106 * Mid-Atlantic Seeds MA8167VT3P * * * Pioneer P1745HR * Augusta A6166GT3000A * RPM RPM 694HRQ * 100 * * T.A. Seeds TA * Augusta A5461GTCBLLA * * Seed Consultants SC 11AGT * Augusta A5462GT3000A * * T.A. Seeds TA * 102 * Augusta A5464GTCBLL * 99 4 Seed Consultants SCS 11HR * Mid-Atlantic Seeds MA8127VT3P * Mid-Atlantic Seeds MA5091GT * DEKALB DKC66-96 VT3P NK Brand N74R-3000GT Brand Dyna-Gro V5683VT * DEKALB DKC64-69 VT3P * Mycogen Seeds TMF2L Pioneer P1184AM Croplan Genetics 6725VT3/P * * 99 4 Mid-Atlantic Seeds MA5061GT * 99 4 Number of Obs. 2 15

16 Table 4, continued. Multi-year, Multi-site Relative Milk per Ton (Quality) Brand Hybrid DTM per Co. 1 Shenandoah Valley Northern Piedmont Southern Piedmont Southwest / Mountain Multi-Site Average Relative Milk per Ton Augusta A7669GTCBLL * 99 4 Mid-Atlantic Seeds MA8129VT3P Dyna-Gro D56VP * * 99 4 Mid-Atlantic Seeds MA5151GTCBLL Seed Consultants SC 11AXX * Seed Consultants SC 11GT * DEKALB DKC62-54 VT * * 98 4 Augusta A6266GT * Southern States SS 787 GENVT3PRO Seed Consultants SCS 11HQ * * Doebler's 674GRQ Augusta A6164GT * Southern States SS 818 GENVT3PRO ChannelBio VT3P Augusta A5560VT Augusta A9169VT Pioneer 31G67AM ChannelBio VT3P * Master's Choice MCT GT T.A. Seeds TA Croplan Genetics 8756VT * * Number of Obs. 2 1 Days to maturity provided by company; differences in maturity rating methods may exist between companies. 2 Hybrids that were tested over more site/year combinations provide a better estimate of hybrid performance than those tested only in a single site/year location. 3 Relative Milk per Ton (quality) calculated by dividing Milk per Ton for each hybrid at each site/year by the average Milk per Ton for that site/year. Numbers over 100 indicate above-average yield, 100 indicates average yield, numbers under 100 indicate below-average yield. * Indicates numbers not significantly different from the highest value in that column (i.e. within one LSD of the top performer.) Shading indicates hybrids that were in the highest yielding group in at least three site years. 16

17 Table 5. Multi-year, Multi-site Relative Milk per Acre (Yield X Quality) Brand Hybrid DTM per Co. 1 Shenandoah Valley Northern Piedmont Southern Piedmont Southwest / Mountain Multi-Site Average Relative Milk per Acre Southern States SS 788 GENVT3PRO * Dyna-Gro V5683VT * 119 * 113 * * 115 * 115 * Southern States SS 868 GENVT3PRO * 124 * * RPM RPM 723HXR * 112 * * T.A. Seeds TA780-13V * 112 * * 108 * * Augusta A5462GT3000A * 116 * * 109 * Mycogen Seeds TMF2W * 110 * Augusta A6166GT3000A * * 118 * Seed Consultants SCS 11HR * * 116 * * Dyna-Gro V5294HXTRNS * * 126 * 103 * Seed Consultants SCS 11HQ * * 146 * * Dyna-Gro D58VP * * Croplan Genetics 8221VT * 103 * 117 * 110 * 107 * Augusta A5461GTCBLLA * 106 * 113 * * 113 * Seed Consultants SCS 11HQ * 112 * Seed Consultants SCS 11HR * 107 * Garst Brand 82R GT Brand * ChannelBio VT * * * 111 * ChannelBio VT * 111 * 104 * Augusta A5560VT * * Mid-Atlantic Seeds MA8171VT * * DEKALB DKC68-05 VT3P * Pioneer P1745HR * 121 * Pioneer 31G67AM * 107 * 112 * ChannelBio VT3P * 109 * * Mid-Atlantic Seeds MA7161HXT * Pioneer P1184AM * * Augusta A7664VT3P * T.A. Seeds TA * * Number of Obs. 2 17

18 Table 5, continued. Multi-year, Multi-site Relative Milk per Acre (Yield X Quality) Brand Hybrid DTM per Co. 1 Shenandoah Valley Northern Piedmont Southern Piedmont Southwest / Mountain Multi-Site Average Relative Milk per Acre Augusta A6867GTCBLLA * 115 * Augusta A6867CBLL * * * T.A. Seeds TA615-16ND * * Southern States SS 818 GENVT3PRO * Mid-Atlantic Seeds MA8167VT3P * 107 * * T.A. Seeds TA * Seed Consultants SC 11AGT * T.A. Seeds TA * * Mid-Atlantic Seeds MA5061GT * RPM RPM 728HXR * * Pioneer 33F90AM * * Augusta A5464GTCBLL * Mid-Atlantic Seeds MA8127VT3P * DEKALB DKC64-69 VT3P * * * Seed Consultants SCS 11HQ * Augusta A6465GTCBLL Croplan Genetics 8756VT * Mid-Atlantic Seeds MA8151VT3P Mid-Atlantic Seeds MA8150VT * * Seed Consultants SCS 11HQ * Croplan Genetics 7505VT * 99 4 RPM RPM 694HRQ * 103 * 99 4 Augusta A6164GT * 109 * Seed Consultants SCS 11HQ * Croplan Genetics 6725VT3/P Master's Choice MCT 6751 GT DEKALB DKC62-54 VT Doebler's 674GRQ * Master's Choice MCT GT * Number of Obs. 2 18

19 Table 5, continued. Multi-year, Multi-site Relative Milk per Acre (Yield X Quality) Brand Hybrid DTM per Co. 1 Shenandoah Valley Northern Piedmont Southern Piedmont Southwest / Mountain Multi-Site Average Relative Milk per Acre ChannelBio VT3P Southern States SS 787 GENVT3PRO * 96 3 Augusta A6166CBLLC * 96 3 Seed Consultants SC 11AXX * 96 4 DEKALB DKC63-84 VT * * Seed Consultants SC 11GT Mycogen Seeds TMF2L DEKALB DKC66-96 VT3P * * 95 4 Dyna-Gro D57GT * 95 4 Dyna-Gro D55Q Augusta A9169VT T.A. Seeds TA NK Brand N74R-3000GT Brand * 93 2 Mid-Atlantic Seeds MA5151GTCBLL Augusta A7669GTCBLL * 92 4 Dyna-Gro D56VP Mid-Atlantic Seeds MA8129VT3P Mid-Atlantic Seeds MA5091GT Augusta A6266GT * Mycogen Seeds F2F * Mid-Atlantic Seeds MAX Number of Obs. 2 1 Days to maturity provided by company; differences in maturity rating methods may exist between companies. 2 Hybrids that were tested over more site/year combinations provide a better estimate of hybrid performance than those tested only in a single site/year location. 3 Relative Milk per Acre (yield x quality) calculated by dividing Milk per Acre for each hybrid at each site/year by the average Milk per Acre for that site/year. Numbers over 100 indicate above-average yield, 100 indicates average yield, numbers under 100 indicate below-average yield. * Indicates numbers not significantly different from the highest value in that column (i.e. within one LSD of the top performer.) Shading indicates hybrids that were in the highest yielding group in at least three site years. 19

20 Table Corn Silage Test Results at the Shenandoah Valley Site Brand Hybrid DTM 1 DM at Harvest --Days-- % Yield at 35% DM DM Yield Crude Protein ADF NE Digest. L TDN Milk2006 Milk2006 ton/acre ton/acre % Mcal/lb % lb milk/ton lb milk/acre Southern States SS 788 GENVT3PRO * 7.89 * 7.93 * * * 3420 * * Seed Consultants SCS 11HR * 7.64 * 7.69 * * * 3505 * * Mid-Atlantic Seeds MA7161HXT * 7.65 * * 0.71 * * 3448 * * Southern States SS 868 GENVT3PRO * 7.75 * 7.64 * * * * * Dyna-Gro V5683VT * 7.88 * * * * Augusta A5560VT * 8.10 * 7.69 * * Augusta A6164GT * 7.90 * * Pioneer 33F90AM * 7.55 * 7.76 * * * 3348 * * Garst Brand 82R GT Brand * 7.33 * * 0.71 * * 3438 * * RPM RPM 728HXR * 7.44 * * * 3370 * * Pioneer P1745HR * 7.57 * 8.03 * * Pioneer P1184AM * 7.84 * * Seed Consultants SCS 11HQ * 7.44 * * Seed Consultants SCS 11HQ * 7.22 * 7.65 * * * 3400 * * Seed Consultants SC 11AGT * 7.05 * 7.78 * * * 3367 * * Augusta A5461GTCBLLA * 7.19 * * Augusta A5462GT3000A * 6.83 * * * 3422 * * Southern States SS 818 GENVT3PRO * 7.51 * * * * Master's Choice MCT GT * 7.48 * * Mid-Atlantic Seeds MA8171VT * 6.76 * * * 3449 * * Seed Consultants SCS 11HQ * 6.79 * 7.85 * * 0.71 * * 3429 * * Mycogen Seeds TMF2W * 6.93 * * * * Augusta A6166GT3000A * 7.16 * * Croplan Genetics 8756VT * 6.85 * * * * * 3357 * * Pioneer 31G67AM * 7.29 * * * DEKALB DKC68-05 VT3P * 6.74 * * * 3346 * * Seed Consultants SCS 11HR * 6.90 * * * * * RPM RPM 723HXR * 6.83 * * Doebler's 674GRQ * 7.01 * * ChannelBio VT3P * 7.02 * * Dyna-Gro D58VP * 6.59 * * * * * 3416 * * 20

21 Table 6, continued Corn Silage Test Results at the Shenandoah Valley Site Brand Hybrid DTM 1 DM at Harvest --Days-- % Yield at 35% DM DM Yield Crude Protein ADF NE Digest. L TDN Milk2006 Milk2006 ton/acre ton/acre % Mcal/lb % lb milk/ton lb milk/acre DEKALB DKC66-96 VT3P * 6.90 * 7.87 * * T.A. Seeds TA615-16ND * 6.71 * 8.27 * * * 3371 * * DEKALB DKC63-84 VT * * * 3423 * * ChannelBio VT * 6.61 * * * 3376 * * Croplan Genetics 8221VT * 6.82 * * * T.A. Seeds TA780-13V * * * Augusta A7664VT3P * * * 3405 * DEKALB DKC62-54 VT * * 3351 * Croplan Genetics 7505VT * * 3443 * Mid-Atlantic Seeds MA8151VT3P * * * 3393 * Master's Choice MCT 6751 GT * * * 3438 * Augusta A5464GTCBLL * Augusta A6465GTCBLL Mid-Atlantic Seeds MA8167VT3P * * 3382 * ChannelBio VT * * * 3359 * Dyna-Gro D55Q * * * Mid-Atlantic Seeds MA5061GT Southern States SS 787 GENVT3PRO * T.A. Seeds TA ChannelBio VT3P Seed Consultants SCS 11HQ * T.A. Seeds TA * Croplan Genetics 6725VT3/P * Mycogen Seeds TMF2L * * T.A. Seeds TA * * Dyna-Gro V5294HXTRNS * * 3337 * Seed Consultants SCS 11HQ * * Augusta A9169VT * * DEKALB DKC64-69 VT3P Augusta A6266GT * Mycogen Seeds F2F * * * * 0.70 * * 3401 *

22 Table 6, continued Corn Silage Test Results at the Shenandoah Valley Site Brand Hybrid DTM 1 DM at Harvest --Days-- % Yield at 35% DM DM Yield Crude Protein ADF NE Digest. L TDN Milk2006 Milk2006 ton/acre ton/acre % Mcal/lb % lb milk/ton lb milk/acre T.A. Seeds TA * * * 3426 * Mid-Atlantic Seeds MA5151GTCBLL * * RPM RPM 694HRQ * * * 3404 * Seed Consultants SC 11GT * * Augusta A7669GTCBLL * Mid-Atlantic Seeds MA8150VT * Mid-Atlantic Seeds MA8129VT3P Mid-Atlantic Seeds MA8127VT3P Mid-Atlantic Seeds MA5091GT * Seed Consultants SC 11AXX * * Dyna-Gro D56VP Augusta A6867GTCBLLA * * Dyna-Gro D57GT NK Brand N74R-3000GT Brand Site Average LSD (0.10) C.V Days to maturity provided by company; dif f erences in maturity rating methods may exist betw een companies. * Indicates numbers not significantly different from the highest value in that column (i.e. w ithin one LSD of the top performer). 22

23 Table 7. Two-Year Average Corn Silage Test Results (2010 & 2011) at the Shenandoah Valley Site Brand Hybrid DTM 1 DM at Harvest --Days-- % Yield at 35% DM DM Yield Crude Protein Dyna-Gro V5683VT * 7.29 * * Augusta A6164GT * 6.87 * * Augusta A5462GT3000A * 6.57 * * * * Augusta A5461GTCBLLA * 6.47 * * * T.A. Seeds TA780-13V * 6.36 * * * * Croplan Genetics 8756VT * 6.40 * * * * * Dyna-Gro V5294HXTRNS * * * 3159 * * Mycogen Seeds F2F * 0.67 * * 3216 * * ChannelBio VT * * 3170 * * Mid-Atlantic Seeds MA8167VT3P * 6.26 * * Croplan Genetics 8221VT * 6.26 * * Augusta A6867CBLL * 6.49 * 8.79 * DEKALB DKC63-84 VT * * 3142 * Seed Consultants SCS 11HQ * * * 3114 * Seed Consultants SCS 11HQ RPM RPM 728HXR DEKALB DKC64-69 VT3P Mid-Atlantic Seeds MA8150VT * NK Brand N74R-3000GT Brand Mid-Atlantic Seeds MA8129VT3P ADF Digest. Milk2006 Milk2006 ton/acre ton/acre % Mcal/lb % lb milk/ton lb milk/acre NE L TDN Site Average LSD (0.10) C.V Days to maturity provided by company; dif f erences in maturity rating methods may exist betw een companies. * Indicates numbers not significantly different from the highest value in that column (i.e. w ithin one LSD of the top performer). 23

24 Table 8. Three-Year Average Corn Silage Test Results (2009, 2010 & 2011) at the Shenandoah Valley Site Brand Hybrid DTM 1 DM at Harvest --Days-- % Yield at 35% DM DM Yield Crude Protein ADF NE Digest. L TDN Milk2006 Milk2006 ton/acre ton/acre % Mcal/lb % lb milk/ton lb milk/acre RPM RPM 728HXR * 7.42 * * * * * T.A. Seeds TA780-13V * 6.86 * 7.52 * * * 0.66 * * 3082 * * Mid-Atlantic Seeds MA8150VT * * 0.66 * * 3057 * * Seed Consultants SCS 11HQ * * * 0.66 * * 3055 * * Seed Consultants SCS 11HQ * * * Croplan Genetics 8221VT * * Site Average LSD (0.10) C.V Days to maturity provided by company; dif f erences in maturity rating methods may exist betw een companies. * Indicates numbers not significantly different from the highest value in that column (i.e. w ithin one LSD of the top performer). 24

25 Table Corn Silage Test Results at the Northern Piedmont Site Brand Hybrid DTM 1 DM at Harvest --Days-- % Yield at 35% DM DM Yield Crude Protein ADF NE Digest. L TDN Milk2006 Milk2006 ton/acre ton/acre % Mcal/lb % lb milk/ton lb milk/acre Southern States SS 868 GENVT3PRO * 9.12 * * * 3557 * * Pioneer P1745HR * 9.26 * * Croplan Genetics 8221VT * 8.48 * * * 3551 * * Seed Consultants SCS 11HR * 8.80 * * * * T.A. Seeds TA * 8.51 * * * 3503 * * Dyna-Gro V5683VT * 8.90 * 7.69 * * * 3421 * * Augusta A5461GTCBLLA * 8.80 * * RPM RPM 723HXR * 8.43 * 7.70 * * * * Seed Consultants SCS 11HQ * 8.44 * * * * Mycogen Seeds TMF2W * 8.17 * * * 3482 * * ChannelBio VT3P * 8.38 * 7.87 * * RPM RPM 728HXR * 8.16 * 7.73 * * * 3461 * * Seed Consultants SCS 11HQ * * 3498 * * Seed Consultants SCS 11HR * 8.11 * * * 3524 * * ChannelBio VT * * 3504 * * T.A. Seeds TA * 8.17 * * Pioneer 31G67AM * Mid-Atlantic Seeds MA8167VT3P * * 3527 * * Croplan Genetics 6725VT3/P * * 3581 * ChannelBio VT * * Croplan Genetics 8756VT * 0.72 * * 3494 * Augusta A6867GTCBLLA * 0.72 * * 3484 * Seed Consultants SCS 11HQ * * 3466 * Augusta A5464GTCBLL DEKALB DKC66-96 VT3P * 8.15 * Mid-Atlantic Seeds MA8127VT3P * * Augusta A6465GTCBLL * * 3450 * Mid-Atlantic Seeds MA8150VT * * * 3467 * DEKALB DKC63-84 VT * * 3475 * DEKALB DKC68-05 VT3P * * 3466 * Augusta A5462GT3000A

26 Table 9, continued Corn Silage Test Results at the Northern Piedmont Site Brand Hybrid DTM 1 DM at Harvest --Days-- % Yield at 35% DM DM Yield Crude Protein ADF NE Digest. L TDN Milk2006 Milk2006 ton/acre ton/acre % Mcal/lb % lb milk/ton lb milk/acre T.A. Seeds TA * * 3462 * Pioneer P1184AM Augusta A6164GT Mid-Atlantic Seeds MA8151VT3P * * 0.73 * * 3557 * Augusta A6166GT3000A Dyna-Gro D57GT * * 0.72 * * 3484 * Master's Choice MCT 6751 GT * * Dyna-Gro D56VP * * RPM RPM 694HRQ * * Mid-Atlantic Seeds MA8171VT * * 0.73 * * 3571 * ChannelBio VT3P * * 3449 * T.A. Seeds TA780-13V Dyna-Gro V5294HXTRNS * * * Mycogen Seeds TMF2L * Seed Consultants SC 11AXX * * 3497 * Seed Consultants SC 11GT * * DEKALB DKC64-69 VT3P T.A. Seeds TA615-16ND * Mid-Atlantic Seeds MA5091GT * * * 3458 * Dyna-Gro D58VP * 0.71 * * 3440 * Augusta A6867CBLL * 0.72 * * 3480 * Pioneer 33F90AM * * 0.71 * * 3463 * Augusta A7664VT3P * * * Croplan Genetics 7505VT * * 3520 * Augusta A9169VT * * * * Doebler's 674GRQ * * * Mid-Atlantic Seeds MA5061GT Seed Consultants SCS 11HQ * DEKALB DKC62-54 VT Seed Consultants SC 11AGT * * Augusta A5560VT *

27 Table 9, continued Corn Silage Test Results at the Northern Piedmont Site Brand Hybrid DTM 1 DM at Harvest --Days-- % Yield at 35% DM DM Yield Crude Protein ADF NE Digest. L TDN Milk2006 Milk2006 ton/acre ton/acre % Mcal/lb % lb milk/ton lb milk/acre Mid-Atlantic Seeds MA7161HXT * Seed Consultants SCS 11HQ * * 0.72 * * 3470 * Mid-Atlantic Seeds MA5151GTCBLL T.A. Seeds TA * * 0.72 * * 3491 * Master's Choice MCT GT * Dyna-Gro D55Q * 0.72 * * 3494 * Mid-Atlantic Seeds MA8129VT3P Augusta A6266GT * * 3441 * Southern States SS 787 GENVT3PRO * Augusta A7669GTCBLL Mycogen Seeds F2F * * 3425 * Augusta A6166CBLLC * 0.72 * * 3487 * Mid-Atlantic Seeds MAX * 0.73 * * 3565 * Site Average LSD (0.10) C.V Days to maturity provided by company; dif f erences in maturity rating methods may exist betw een companies. * Indicates numbers not significantly different from the highest value in that column (i.e. w ithin one LSD of the top performer). 27

28 Table 10. Two-Year Average Corn Silage Test Results (2010 & 2011) at the Northern Piedmont Site Brand Hybrid DTM 1 DM at Harvest --Days-- % Yield at 35% DM DM Yield Crude Protein Seed Consultants SCS 11HQ * 7.09 * * * 3186 * * Dyna-Gro V5683VT * 7.29 * 7.24 * * * * T.A. Seeds TA780-13V * 6.80 * * * * * * Augusta A5461GTCBLLA * RPM RPM 728HXR * * * Augusta A5462GT3000A * * * Augusta A6164GT * * * ChannelBio VT * * * Dyna-Gro V5294HXTRNS * * * * 3138 * Mid-Atlantic Seeds MA8150VT * * * * * 3209 * DEKALB DKC63-84 VT * * * Mid-Atlantic Seeds MA8167VT3P * * * * * 3140 * DEKALB DKC64-69 VT3P Seed Consultants SCS 11HQ * * * Mycogen Seeds F2F * * * 0.67 * * 3240 * Augusta A6867CBLL * * * * * 3136 * Mid-Atlantic Seeds MA8129VT3P * * ADF Digest. Milk2006 Milk2006 ton/acre ton/acre % Mcal/lb % lb milk/ton lb milk/acre NE L TDN Site Average LSD (0.10) C.V Days to maturity provided by company; dif f erences in maturity rating methods may exist betw een companies. * Indicates numbers not significantly different from the highest value in that column (i.e. w ithin one LSD of the top performer). 28

29 Table Corn Silage Test Results at the Southern Piedmont Site Brand Hybrid DTM 1 DM at Harvest --Days-- % Yield at 35% DM DM Yield Crude Protein ADF NE Digest. L TDN Milk2006 Milk2006 ton/acre ton/acre % Mcal/lb % lb milk/ton lb milk/acre Dyna-Gro V5683VT * 6.44 * * Mid-Atlantic Seeds MA5061GT * 6.21 * * Augusta A6867GTCBLLA * 5.85 * * Pioneer 31G67AM * 6.48 * * * * Mid-Atlantic Seeds MA8171VT * 5.86 * * * ChannelBio VT * 0.69 * * 3300 * * Croplan Genetics 8221VT * * RPM RPM 694HRQ * 6.18 * * * Dyna-Gro V5294HXTRNS * * * * Augusta A5461GTCBLLA * 5.85 * * Augusta A6166GT3000A * 5.85 * * T.A. Seeds TA780-13V * 0.70 * * 3335 * * ChannelBio VT * 0.70 * * 3333 * * Augusta A5560VT * 5.91 * * * Seed Consultants SCS 11HQ * * Augusta A6266GT * * Pioneer 33F90AM * * Mid-Atlantic Seeds MA8127VT3P RPM RPM 723HXR * * * Augusta A5462GT3000A Augusta A6465GTCBLL Dyna-Gro D58VP * * * Southern States SS 868 GENVT3PRO * * * T.A. Seeds TA Augusta A6867CBLL * Seed Consultants SCS 11HQ T.A. Seeds TA * Seed Consultants SCS 11HQ * * Mid-Atlantic Seeds MA5151GTCBLL * T.A. Seeds TA Augusta A6164GT

30 Table 11, continued Corn Silage Test Results at the Southern Piedmont Site Brand Hybrid DTM 1 DM at Harvest --Days-- % Yield at 35% DM DM Yield Crude Protein ADF NE Digest. L TDN Milk2006 Milk2006 ton/acre ton/acre % Mcal/lb % lb milk/ton lb milk/acre Mid-Atlantic Seeds MA7161HXT Seed Consultants SCS 11HQ * Mid-Atlantic Seeds MA8129VT3P * Mid-Atlantic Seeds MA8167VT3P * * * T.A. Seeds TA615-16ND * * * 3316 * Pioneer P1745HR * Seed Consultants SC 11AGT * Seed Consultants SCS 11HR * * Mid-Atlantic Seeds MA8151VT3P * * 0.71 * * 3447 * Augusta A7664VT3P * * Seed Consultants SC 11GT DEKALB DKC68-05 VT3P * DEKALB DKC66-96 VT3P Augusta A9169VT * * Croplan Genetics 6725VT3/P Mid-Atlantic Seeds MA5091GT * Seed Consultants SC 11AXX * Augusta A6166CBLLC * T.A. Seeds TA Croplan Genetics 8756VT * * * Master's Choice MCT GT Seed Consultants SCS 11HR Master's Choice MCT 6751 GT Southern States SS 818 GENVT3PRO * * * Doebler's 674GRQ * ChannelBio VT3P Augusta A7669GTCBLL * DEKALB DKC62-54 VT DEKALB DKC64-69 VT3P RPM RPM 728HXR * * Dyna-Gro D57GT *

31 Table 11, continued Corn Silage Test Results at the Southern Piedmont Site Brand Hybrid DTM 1 DM at Harvest --Days-- % Yield at 35% DM DM Yield Crude Protein ADF NE Digest. L TDN Milk2006 Milk2006 ton/acre ton/acre % Mcal/lb % lb milk/ton lb milk/acre ChannelBio VT3P DEKALB DKC63-84 VT Dyna-Gro D55Q Augusta A5464GTCBLL * Croplan Genetics 7505VT Mid-Atlantic Seeds MA8150VT * * * Pioneer P1184AM Dyna-Gro D56VP Seed Consultants SCS 11HQ * * * Mid-Atlantic Seeds MAX * * Site Average LSD (0.10) C.V Days to maturity provided by company; dif f erences in maturity rating methods may exist betw een companies. * Indicates numbers not significantly different from the highest value in that column (i.e. w ithin one LSD of the top performer). 31

32 Table 12. Two-Year Average Corn Silage Test Results (2010 & 2011) at the Southern Piedmont Site Brand Hybrid DTM 1 DM at Harvest --Days-- % Yield at 35% DM DM Yield Crude Protein Dyna-Gro V5683VT * 5.59 * * * Dyna-Gro V5294HXTRNS * * * 2991 * * Augusta A6867CBLL * * 0.65 * * 2939 * ChannelBio VT * * 2905 * Augusta A5461GTCBLLA Seed Consultants SCS 11HQ Augusta A5462GT3000A DEKALB DKC64-69 VT3P * * 2925 * Augusta A6164GT Mid-Atlantic Seeds MA8167VT3P * * Seed Consultants SCS 11HQ * * * Mid-Atlantic Seeds MA8129VT3P * DEKALB DKC63-84 VT RPM RPM 728HXR * * Mid-Atlantic Seeds MA8150VT * * 0.65 * * 2929 * ADF Digest. ton/acre ton/acre % NE L TDN Milk2006 Milk2006 Mcal/lb % lb milk/ton lb milk/acre Site Average LSD (0.10) C.V Days to maturity provided by company; dif f erences in maturity rating methods may exist betw een companies. * Indicates numbers not significantly different from the highest value in that column (i.e. w ithin one LSD of the top performer). 32

33 Table 13. Three-Year Average Corn Silage Test Results (2009, 2010 & 2011) at the Southern Piedmont Site Brand Hybrid DTM 1 DM at Harvest --Days-- % Yield at 35% DM DM Yield Crude Protein ADF NE Digest. L TDN Milk2006 Milk2006 ton/acre ton/acre % Mcal/lb % lb milk/ton lb milk/acre Seed Consultants SCS 11HQ * 5.79 * * * 2915 * * Seed Consultants SCS 11HQ * 5.57 * 8.12 * * * RPM RPM 728HXR * * Mid-Atlantic Seeds MA8150VT * * 0.65 * * 2962 * Site Average LSD (0.10) C.V Days to maturity provided by company; dif f erences in maturity rating methods may exist betw een companies. * Indicates numbers not significantly different from the highest value in that column (i.e. w ithin one LSD of the top performer). 33

34 Table Corn Silage Test Results at the Southwestern Virginia Site Brand Hybrid DTM 1 DM at Harvest --Days-- % Yield at 35% DM DM Yield Crude Protein ADF NE Digest. L TDN Milk2006 Milk2006 ton/acre ton/acre % Mcal/lb % lb milk/ton lb milk/acre Dyna-Gro D58VP * 9.39 * * * * Augusta A5462GT3000A * 9.50 * * RPM RPM 723HXR * 9.07 * * * 3257 * * Augusta A6166GT3000A * 8.44 * * * 3326 * * ChannelBio VT * 9.02 * * * Augusta A6867GTCBLLA * 8.82 * * 0.70 * * 3364 * * Dyna-Gro V5683VT * 8.96 * * Augusta A7664VT3P * 8.36 * 8.07 * * * 3349 * * Southern States SS 868 GENVT3PRO * 8.06 * * * * 0.68 * * 3245 * * Mid-Atlantic Seeds MA8150VT * 8.57 * * * 3254 * * Augusta A6166CBLLC * 8.40 * * * 3304 * * Mid-Atlantic Seeds MA8127VT3P * 8.77 * * Mid-Atlantic Seeds MA8167VT3P * 8.08 * * * 0.70 * * 3325 * * T.A. Seeds TA * 8.60 * * Seed Consultants SCS 11HR * 8.91 * * T.A. Seeds TA780-13V * 8.00 * * * 3292 * * Croplan Genetics 7505VT * 8.00 * * * 3323 * * Seed Consultants SC 11AXX * 8.10 * * Dyna-Gro D57GT * * * 3356 * * Southern States SS 787 GENVT3PRO * 8.18 * * Croplan Genetics 8221VT * * 3335 * * T.A. Seeds TA * 8.77 * * T.A. Seeds TA * 8.34 * * T.A. Seeds TA615-16ND * * * 3406 * * Augusta A5464GTCBLL * * 3332 * * Augusta A7669GTCBLL * 8.41 * 8.08 * * * 3259 * * ChannelBio VT * 8.13 * * * * ChannelBio VT3P * 8.09 * * Pioneer P1184AM * * Seed Consultants SCS 11HQ * DEKALB DKC63-84 VT * * 3308 * * 34

35 Table 14, continued Corn Silage Test Results at the Southwestern Virginia Site Brand Hybrid DTM 1 DM at Harvest --Days-- % Yield at 35% DM DM Yield Crude Protein ADF NE Digest. L TDN Milk2006 Milk2006 ton/acre ton/acre % Mcal/lb % lb milk/ton lb milk/acre RPM RPM 694HRQ * 8.73 * * * 3255 * * DEKALB DKC66-96 VT3P * Dyna-Gro V5294HXTRNS * * * 3327 * * Dyna-Gro D55Q * * * 3407 * ChannelBio VT3P * 8.08 * Seed Consultants SCS 11HQ * * 3345 * Seed Consultants SC 11GT * * 3296 * Seed Consultants SC 11AGT * * Seed Consultants SCS 11HQ * * 3245 * Augusta A5560VT Augusta A5461GTCBLLA * * * 0.69 * * 3257 * Mid-Atlantic Seeds MA8171VT * * 3245 * Croplan Genetics 6725VT3/P * * 3255 * Seed Consultants SCS 11HR * * 3278 * Mid-Atlantic Seeds MA8151VT3P * * * 3328 * Dyna-Gro D56VP * * * 3262 * Doebler's 674GRQ Seed Consultants SCS 11HQ * * 3313 * Mid-Atlantic Seeds MA7161HXT * Mid-Atlantic Seeds MA5061GT * * 3300 * RPM RPM 728HXR DEKALB DKC62-54 VT * * 3238 * Mid-Atlantic Seeds MA5151GTCBLL Augusta A6465GTCBLL * Augusta A9169VT Croplan Genetics 8756VT * Seed Consultants SCS 11HQ * * * 3255 * Pioneer 31G67AM * * T.A. Seeds TA * * 3302 * Mid-Atlantic Seeds MA8129VT3P Augusta A6867CBLL *

36 Table 14, continued Corn Silage Test Results at the Southwestern Virginia Site Brand Hybrid DTM 1 DM at Harvest --Days-- % Yield at 35% DM DM Yield Crude Protein ADF NE Digest. L TDN Milk2006 Milk2006 ton/acre ton/acre % Mcal/lb % lb milk/ton lb milk/acre Pioneer 33F90AM * * 0.69 * * 3280 * Mid-Atlantic Seeds MA5091GT * Augusta A6266GT Pioneer P1745HR * * 0.69 * * 3294 * Augusta A6164GT * * * 3291 * DEKALB DKC64-69 VT3P DEKALB DKC68-05 VT3P * 0.70 * * 3367 * Mid-Atlantic Seeds MAX * 0.69 * * 3285 * Site Average LSD (0.10) C.V Days to maturity provided by company; dif f erences in maturity rating methods may exist betw een companies. * Indicates numbers not significantly different from the highest value in that column (i.e. w ithin one LSD of the top performer). 36

37 Table 15. Two-Year Average Corn Silage Test Results (2010 & 2011) at the Southwest Virginia Site Brand Hybrid DTM 1 DM at Harvest --Days-- % Yield at 35% DM DM Yield Crude Protein Augusta A5462GT3000A * 9.97 * * ChannelBio VT * 9.22 * * * * Mid-Atlantic Seeds MA8150VT * 0.67 * * 3021 * * Dyna-Gro V5683VT * 8.98 * 7.05 * * 0.67 * * * T.A. Seeds TA780-13V * * * * Augusta A6867CBLL * 8.93 * * 0.67 * * * Mid-Atlantic Seeds MA8167VT3P * 0.68 * * * Croplan Genetics 8221VT * * 0.67 * * 3034 * * Dyna-Gro V5294HXTRNS * * * 3038 * * Seed Consultants SCS 11HQ * 0.67 * * 2981 * * Seed Consultants SCS 11HQ * * 0.68 * * 3061 * * DEKALB DKC63-84 VT * * * RPM RPM 728HXR * 0.68 * * * Augusta A5461GTCBLLA * * 0.67 * * * Croplan Genetics 8756VT * 8.96 * * * Augusta A9169VT * * * DEKALB DKC64-69 VT3P * * Mid-Atlantic Seeds MA8129VT3P * * * 0.67 * * Augusta A6164GT * 0.67 * * ADF Digest. Milk2006 Milk2006 ton/acre ton/acre % Mcal/lb % lb milk/ton lb milk/acre NE L TDN Site Average LSD (0.10) C.V Days to maturity provided by company; dif f erences in maturity rating methods may exist betw een companies. * Indicates numbers not significantly different from the highest value in that column (i.e. w ithin one LSD of the top performer). 37

38 Table 16. Three-Year Average Corn Silage Test Results (2009, 2010 & 2011) at the Southwest Virginia Site Brand Hybrid DTM 1 DM at Harvest --Days-- % Yield at 35% DM DM Yield Crude Protein ADF NE Digest. L TDN Milk2006 Milk2006 ton/acre ton/acre % Mcal/lb % lb milk/ton lb milk/acre T.A. Seeds TA780-13V * 8.51 * * 0.66 * * 2946 * * Croplan Genetics 8221VT * 8.49 * * * 0.66 * * 2946 * * Seed Consultants SCS 11HQ * 8.55 * 6.30 * * * 0.66 * * 2923 * * Seed Consultants SCS 11HQ * 8.29 * 6.54 * * 0.66 * * 2889 * * RPM RPM 728HXR * 8.47 * * 0.67 * * * Augusta A9169VT * 8.71 * * * * * Site Average LSD (0.10) C.V Days to maturity provided by company; dif f erences in maturity rating methods may exist betw een companies. * Indicates numbers not significantly different from the highest value in that column (i.e. w ithin one LSD of the top performer). 38

39 Figure 1. Average relative yield versus quality across all test sites in