Varietal Trials Results January 2012

Transcription

1 The Minnesota Agricultural Experiment Station in partnership with the University of Minnesota College of Agricultural, Food and Natural Resource Sciences Varietal Trials Results January 0 Corn Silage p C.C.Sheaffer, J.Coulter, D.R.Swanson, T.R.Hoverstad, M.D.Bickell and D.L.Holen The Minnesota Hybrid Corn Silage Evaluation Program evaluates the silage potential of corn hybrids in Minnesota. The program s goal is to provide unbiased forage yield and quality information for educational and marketing programs. The program is financed in part by entry fees from private seed companies that chose to enter hybrids for testing. These companies are listed below. Results presented are from corn silage performance trials in regions of extensive corn silage use: southeastern, central, and westcentral Minnesota; all sites are in important dairy regions of Minnesota. All hybrids were tested at two sites within each region. Test Sites Southeast Dairy Region LaCrescent (Houston County) Rochester (Olmsted County) Central Dairy Region Hutchinson (McLeod County) Melrose (Stearns County) West-Central Dairy Region Underwood (Otter Tail County) Ottertail (Otter Tail County) Companies participating in 0 hybrid corn silage performance trials. AgriGold Hybrids Albert Lea Seed House (Viking) Anderson Seeds, 785 County Rd 6, St Peter, MN 5608 Dairyland Seed Dyna-Gro Seed Gold Country Seed Hyland Seeds Legacy Seeds, Inc. Legend Seeds Masters Choice Monsanto (Dekalb) Mycogen Seed Nu Tech Seed, LLC Pioneer Hi-Bred International Producers Hybrids REA Hybrids Renk Seed Co. Seeds Stine Seed Co. Syngenta Seeds Trelay Seeds Wensman Seed Company Test Procedure Plots were established at LaCrescent, Rochester, Hutchinson, Melrose, Underwood and Ottertail in randomized complete block designs with four replications. Planting and harvesting dates at the test sites were La Crescent, May 8 and Sept 9; Rochester, May 8 and Sept 0; Hutchinson, June and Sept 6; Melrose, May 6 and Sept ; Ottertail and Underwood, May 6 and Sept, respectively. Hybrid entries were planted at 5,000 seeds/ acre with 0-inch row spacing. Plant nutrients as manure or inorganic fertilizer were applied according to University of Minnesota recommendation. Herbicides to control weeds also were applied following University of Minnesota recommendations. Plots were harvested and whole-plant herbage sampled for dry matter and forage quality analysis at each site. Test sites were harvested when the average whole-plant moisture across entries was estimated to be 65%. Replications were reduced to three at the Underwood site due to crop damage caused by wildlife feeding. Low harvest moisture at Rochester was due to an early frost, which damaged the upper part of plants. Results Provided Tables -6 summarize hybrid yield and forage quality results from LaCrescent, Rochester, Hutchinson, Melrose, Ottertail and Underwood, respectively. Moisture content, whole-plant dry matter (DM) yield, and silage yield are listed, and hybrids are ranked, in descending order of milk yield per acre (Milk Yield, lb/acre). Genetic trait information is supplied by companies entering varieties in the hybrid corn silage performance trial.

2 Whole-plant forage quality traits listed include crude protein (CP), neutral detergent fiber (NDF), 8-hour in vitro digestibility (IVD), 8-hour neutral detergent fiber digestibility (NDFD) and starch concentration. With the exception of NDFD, all forage quality traits are expressed as a percent of dry matter. NDFD is expressed as a percent of NDF. Milk production potential per ton (lb milk/ton forage) and per acre (lb milk/acre forage) of forage were calculated using the MILK006 spreadsheet developed by the University of Wisconsin. MILK006 approximates animal performance based on a standard cow weight and milk production level (,50 lb body weight and 90 lb/day at.8% fat). Field values for moisture and DM yield at harvest; laboratory values for CP, NDF, NDFD, starch, oil and ash concentration, and book values for NDF- CP (.%) were used for spreadsheet calculations. For MILK006 predictions, we assumed that kernel processing occurred. Milk production (lb milk/ton and lb milk/acre) values can be used as a quick reference for relative comparison of hybrids within test locations. How To Use Results NDF is a negative indicator of forage intake potential; higher NDF concentration generally implies lower animal performance potential. IVD provides an estimate of forage dry matter digestibility, and NDFD estimates digestibility of the fiber fraction. Starch concentration is positively associated with digestibility because it is assumed to be 00% digestible. Relatively higher IVD, NDFD and/ or starch concentrations generally imply greater animal performance potential. Milk yield per acre represents the combined effects of yield and quality. Corn hybrids differed in yield, forage quality and milk production potential at all sites. Means and least significant difference (LSD) values at the 0% probability level are shown for each parameter at each site. Where the difference between two hybrids for a particular yield or quality trait is greater than the LSD value, there is a 90% probability that there is a significant difference between the two hybrids for that parameter; that is, moisture, yield, quality concentration or milk production. Figures -6 summarize the relationship between silage dry matter yield and milk per ton for test sites at La Crescent, Rochester, Hutchinson, Melrose, Ottertail and Underwood, respectively. 5

3 Table. Relative maturity (RM), whole-plant moisture (Moist), dry matter, and silage yield and quality traits for corn hybrids planted at La Crescent (Houston County) in 0. Dairyland Seed/ HiD.F.-0-Q Bt,CRW,GLY ,690 60,700 Dekalb/ DKC55-09 Bt,CRW,GLY,LL ,70 59,500 NuTech/ 5N-00 Bt,CRW,GLY,LL ,600 58,800 Pioneer Brand/ A89 Bt,CRW,GLY,LL ,690 58,600 5 Pioneer Brand/ P089XR Bt,CRW,GLY,LL ,650 58,00 6 Pioneer Brand/ F88 Bt,CRW,GLY,LL ,70 57,00 7 Mycogen/ TMFL5 Bt,CRW,GLY,LL ,660 57,00 8 Renk/ RK7VT NDS Bt,CRW,GLY ,70 56,900 9 Legacy Seeds/ L GT Bt,CRW,GLY,LL ,70 56,700 0 AgriGold/ A69VT Bt,CRW,GLY ,70 56,600 G Genetics/ 5H-5TM Bt,GLY,LL ,70 56,600 Dekalb/ DKC59-5 Bt,CRW,GLY ,690 56,500 Dekalb DKC6-5 Bt,CRW,GLY ,70 55,800 Wensman Seed/ W 760VT Bt,CRW,GLY ,70 55,700 5 Gold Country Seed/0-5 VT Bt,CRW,GLY ,70 55,00 6 Masters Choice/ MC ,70 5,800 7 Dekalb/ DKC6-88 Bt,CRW,GLY ,70 5,00 8 Mycogen/ TMFW77 Bt,CRW,GLY,LL ,60 5,000 9 Wensman Seed/ W 79GT Bt,CRW,GLY,LL ,70 5,000 0 AgriGold/ A6GT Bt,CRW,GLY,LL ,680 5,00 Garst/ 85V88-000GT Bt,CRW,GLY,LL ,70 5,00 Garst/ 88E98-000GT Bt,CRW,GLY,LL ,70 5,00 Legacy Seeds/ L GT Bt,CRW,GLY,LL ,670 5,800 G Genetics/ 5X-909TM Bt,CRW,GLY,LL ,70 5,500 5 G Genetics/ 5X-007TM Bt,CRW,GLY,LL ,70 5,00 6 Trelay/ 6VP98 Bt,CRW,GLY ,70 5,00 7 Masters Choice/ MC ,670 5,00 8 AgriGold/ A68VTPro Bt,CRW,GLY ,650 5,00 9 NuTech/ 5N-06 Bt,CRW,GLY,LL ,700 5,00 0 Producers Hybrids/ 66GT Bt,CRW,GLY,LL ,70 5,800 Gold Country Seed/0-09 VTP Bt,CRW,GLY ,680 5,00 Golden Harvest/ H-8 000GT Bt,CRW,GLY,LL ,670 5,00 AgriGold/ A689VTPro Bt,CRW,GLY ,70 5,00 Mycogen/ TMFQ77 Bt,CRW,GLY,LL ,700 5,000 5 AgriGold/ A66VTPro Bt,CRW,GLY ,760 50,600 6 Trelay/ 6ST576 Bt,CRW,GLY,LL ,700 50,500 7 Dekalb/ DKC57-50 Bt,CRW,GLY ,680 50,00 8 Legend Seeds/ GT Bt,CRW,GLY,LL ,660 50,00 9 Trelay/ 6ST60 Bt,CRW,GLY,LL ,70 50,000 0 G Genetics/ 5X-905TM Bt,CRW,GLY,LL ,70 9,500 NK/ N9J-000GT Bt,CRW,GLY,LL ,670 9,00 Gold Country Seed/07-7 VTP Bt,CRW,GLY ,60 9,000 Anderson Seeds/ ,70 8,900 Producers Hybrids/ 79VT Bt,CRW,GLY ,700 8,800 5 Anderson Seeds/ 68VT Bt,CRW,GLY ,60 8,600 6 Stine/ 979VTPRO Bt,CRW,GLY ,750 8,000 7 Trelay/ 6VT8 Bt,CRW,GLY ,70 7,00 8 Legend Seeds/ 7J0-000GT Bt,CRW,GLY,LL ,70 6,800 9 Stine/ 97VTPRO Bt,CRW,GLY ,70 6, Anderson Seeds/ 0VT Bt,CRW,GLY ,670 6,500 5 Anderson Seeds/ 0R GLY ,70 6,00 5 Trelay/ 7VP75 Bt,CRW,GLY ,60 6,00 6

4 Table. (continued) Relative maturity (RM), whole-plant moisture (Moist), dry matter, and silage yield and quality traits for corn hybrids planted at La Crescent (Houston County) in 0. 5 Dekalb/ DKC5-78 Bt,CRW,GLY,LL ,680 6,00 5 Masters Choice/ MC ,700 5,00 55 Gold Country Seed/0-99 GENSS Bt,CRW,GLY,LL ,700, Anderson Seeds/ 66R GLY ,700,00 57 Anderson Seeds/ 67R GLY ,60 0,00 58 Anderson Seeds/ 605VT Bt,CRW,GLY ,70 9,000 Mean ,700 5,600 LSD(0.0) CV Bt, CRW, GLY, LL, Lf traits contain genes for European corn borer tolerance, corn rootworm tolerance, and glyphosate, Liberty LinkR (glufosinate-ammonium) herbicide resistance, and leafy trait, respectively. DM yield is whole-plant corn yield at 00% dry matter; Silage yield is whole-plant corn yield at harvest moisture. Quality concentration expressed as a % of DM, except NDFD which is expressed as a % of NDF. Refer to Results Provided text for additional information. Milk production was estimated using spreadsheet MILK006 developed at the University of Wisconsin. Refer to Results Provided text for additional information. Figure. Relationship between silage dry matter and milk per ton. 6.9 Silage dry matter yield, ton/acre ,590,60,650,680,70,70,770 Milk, lb/ton dry matter Relationship between silage dry matter yield and milk per ton at La Crescent (Houston County) in 00. Silage dry matter yield values at or above the dashed line were among the highest in this trial at the 0% probability level. Milk per ton values at or to the right of the at the 0% probability level. Entry numbers for hybrids with silage dry matter yield and milk/ton values that were among the highest are shown. 7

5 Table. Relative maturity (RM), whole-plant moisture (Moist), dry matter and silage yield, and quality traits for corn hybrids planted at Rochester (Olmsted County) in 0. Dekalb/ DKC59-5 Bt,CRW,GLY ,550 6,600 Dairyland Seed/ HiD.F.-0-Q Bt,CRW,GLY ,50 5,600 Dekalb/ DKC6-88 Bt,CRW,GLY ,670 5,00 G Genetics/ 5H-5TM Bt,GLY,LL ,660 5,000 5 AgriGold/ A6GT Bt,CRW,GLY,LL ,550,900 6 AgriGold/ A69VT Bt,CRW,GLY ,60,700 7 Wensman Seed/ W 760VT Bt,CRW,GLY ,50,00 8 G Genetics/ 5X-909TM Bt,CRW,GLY,LL ,670,000 9 G Genetics/ 5X-007TM Bt,CRW,GLY,LL ,570,00 0 Pioneer Brand/ A89 Bt,CRW,GLY,LL ,50,00 Wensman Seed/ W 79GT Bt,CRW,GLY,LL ,660,00 Masters Choice/ MC ,660,000 AgriGold/ A66VTPro Bt,CRW,GLY ,60,900 Pioneer Brand/ F88 Bt,CRW,GLY,LL ,60,600 5 Legacy Seeds/ L GT Bt,CRW,GLY,LL ,650,500 6 Mycogen/ TMFL5 Bt,CRW,GLY,LL ,550,00 7 Gold Country Seed/0-5 VT Bt,CRW,GLY ,60,000 8 Pioneer Brand/ P089XR Bt,CRW,GLY,LL ,580,900 9 AgriGold/ A68VTPro Bt,CRW,GLY ,500,00 0 Stine/ 979VTPRO Bt,CRW,GLY ,60 0,900 Mycogen/ TMFW77 Bt,CRW,GLY,LL ,70 0,800 Trelay/ 6VP98 Bt,CRW,GLY ,60 0,800 Garst/ 88E98-000GT Bt,CRW,GLY,LL ,60 0,600 Masters Choice/ MC ,680 0,500 5 Stine/ 97VTPRO Bt,CRW,GLY ,60 0,500 6 Dekalb/ DKC6-5 Bt,CRW,GLY ,570 0,00 7 Mycogen/ TMFQ77 Bt,CRW,GLY,LL ,50 0,00 8 Renk/ RK7VT NDS Bt,CRW,GLY ,570 0,00 9 Gold Country Seed/07-7 VTP Bt,CRW,GLY ,650 9,00 0 NK/ N9J-000GT Bt,CRW,GLY,LL ,50 9,000 Producers Hybrids/ 66GT Bt,CRW,GLY,LL ,580 9,000 AgriGold/ A689VTPro Bt,CRW,GLY ,660 8,800 Golden Harvest/ H-8 000GT Bt,CRW,GLY,LL ,580 8,800 Masters Choice/ MC ,590 8,800 5 NuTech/ 5N-06 Bt,CRW,GLY,LL ,690 8,000 6 Anderson Seeds/ 67R GLY ,580 7,900 7 NuTech/ 5N-00 Bt,CRW,GLY,LL ,90 7,800 8 Legacy Seeds/ L GT Bt,CRW,GLY,LL ,580 7,700 9 Legend Seeds/ 7J0-000GT Bt,CRW,GLY,LL ,60 7,00 0 Anderson Seeds/ 0VT Bt,CRW,GLY ,570 7,00 Producers Hybrids/ 79VT Bt,CRW,GLY ,50 7,00 Dekalb/ DKC55-09 Bt,CRW,GLY,LL ,590 7,000 Trelay/ 7VP75 Bt,CRW,GLY ,70 6,900 Anderson Seeds/ 0R GLY ,570 6,800 5 Dekalb/ DKC57-50 Bt,CRW,GLY ,560 6,800 6 Gold Country Seed/0-09 VTP Bt,CRW,GLY ,660 6,800 7 Garst/ 85V88-000GT Bt,CRW,GLY,LL ,590 6,700 8 Trelay/ 6ST60 Bt,CRW,GLY,LL ,60 6,00 9 Trelay/ 6ST576 Bt,CRW,GLY,LL ,50 5, Anderson Seeds/ ,00 5,800 5 Gold Country Seed/0-99 GENSS Bt,CRW,GLY,LL ,50 5,500 5 Dekalb/ DKC5-78 Bt,CRW,GLY,LL ,500 5,00 5 Trelay/ 6VT8 Bt,CRW,GLY ,550 5,00 5 Legend Seeds/ GT Bt,CRW,GLY,LL ,60, Anderson Seeds/ 66R GLY ,80, G Genetics/ 5X-905TM Bt,CRW,GLY,LL ,550,700 8

6 Table. (continued) Relative maturity (RM), whole-plant moisture (Moist), dry matter and silage yield, and quality traits for corn hybrids planted at Rochester (Olmsted County) in Anderson Seeds/ 68VT Bt,CRW,GLY ,60,00 58 Anderson Seeds/ 605VT Bt,CRW,GLY ,550,00 Mean ,570 9,500 LSD(0.0) CV Bt, CRW, GLY, LL, Lf traits contain genes for European corn borer tolerance, corn rootworm tolerance, and glyphosate, Liberty LinkR (glufosinate- ammonium) herbicide resistance, and leafy trait, respectively. DM yield is whole-plant corn yield at 00% dry matter; Silage yield is whole-plant corn yield at harvest moisture. Quality concentration expressed as a % of DM, except NDFD which is expressed as a % of NDF. Refer to Results Provided text for additional information. Milk production was estimated using spreadsheet MILK006 developed at the University of Wisconsin. Refer to Results Provided text for additional information. Figure. Relationship between silage dry matter and milk per ton..5 Silage dry matter yield, ton/acre ,70,0,90,550,60,670, Relationship between silage dry matter yield and milk per ton at Rochester (Olmsted County) in 00. Silage dry matter yield values at or above the dashed line were among the highest in this trial at the 0% probability level. Milk per ton values at or to the right of the at the 0% probability level. Entry numbers for hybrids with silage dry matter yield and milk/ton values that were among the highest are shown. Milk, lb/ton dry matter 9

7 Table. Relative maturity (RM), whole-plant moisture (Moist), dry matter and silage yield, and quality traits for corn hybrids planted at Hutchinson (McLeod County) in 0. Trelay/ 5VP688 Bt,CRW,GLY ,650 9,00 NK/ N9J-000GT Bt,CRW,GLY,LL ,580 8,900 Producers Hybrids/ 66VT Bt,CRW,GLY ,50 8,900 Gold Country Seed/07-7 VTP Bt,CRW,GLY ,550 8,00 5 NuTech/ 5N-97 Bt,CRW,GLY,LL ,50 8,000 6 Pioneer Brand/ P08XR Bt,CRW,GLY,LL ,550 7,600 7 Dairyland Seed/ HiD.F.-0-Q Bt,CRW,GLY ,50 7,00 8 NuTech/ 5N-0 Bt,CRW,GLY,LL ,590 7,00 9 Renk/ RK698VT Bt,CRW,GLY ,60 7,000 0 Dyna-Gro Seed/ DVP9 Bt,CRW,GLY ,50 6,000 Trelay/ 6VP98 Bt,CRW,GLY ,50 6,000 Dyna-Gro Seed/ D5RR0 GLY ,650 5,600 Producers Hybrids/ 66GT Bt,CRW,GLY,LL ,50 5,500 Hyland Seeds/ HL Bt,CRW,GLY,LL ,80 5,00 5 Golden Harvest/ H-8 000GT Bt,CRW,GLY,LL ,50 5,00 6 Dairyland Seed/ HiD.F Bt,CRW,GLY,LL ,600 5,000 7 Hyland Seeds/ HL 0 Bt,CRW,GLY,LL ,590,700 8 Gold Country Seed/0-99 GENSS Bt,CRW,GLY,LL ,60,500 9 Gold Country Seed/0-09 VTP Bt,CRW,GLY ,580,500 0 Dekalb/ DKC5-78 Bt,CRW,GLY,LL ,60,00 Mycogen/ TMFL5 Bt,CRW,GLY,LL ,70,00 NuTech/ 5N-00 Bt,CRW,GLY,LL ,580,00 Renk/ RK69GTCBLLRWBL Bt,CRW,GLY,LL ,70,00 G Genetics/ 5H-797TM Bt,GLY,LL ,60,00 5 G Genetics/ 5X-000TM Bt,CRW,GLY,LL ,70,00 6 Dekalb/ DKC55-09 Bt,CRW,GLY,LL ,670,00 7 Pioneer Brand/ P05XR Bt,CRW,GLY,LL ,70,700 8 Dekalb/ DKC57-50 Bt,CRW,GLY ,50,600 9 Dekalb/ DKC59-5 Bt,CRW,GLY ,590,600 0 Renk/ RK6VT NDS Bt,CRW,GLY ,550,500 Legacy Seeds/ L-0 Bt,CRW,GLY,LL ,600,800 Trelay/ 6VT5 Bt,CRW,GLY ,0,800 Trelay/ 6ST576 Bt,CRW,GLY,LL ,50,700 Dyna-Gro Seed/ D0SS09 Bt,CRW,GLY,LL ,600,500 5 Renk/ RK5GTCBLLRW Bt,CRW,GLY,LL ,600,00 6 Trelay/ VP76 Bt,CRW,GLY ,50,00 7 Legacy Seeds/ L GT Bt,CRW,GLY,LL ,560,000 8 Dairyland Seed/ HiD.F Bt,CRW,GLY,LL ,50,800 9 Gold Country Seed/00-07 VT Bt,CRW,GLY ,60,00 0 Mycogen/ TMFR5 Bt,CRW,GLY,LL ,500,00 G Genetics/ 5X-50TM Bt,CRW,GLY,LL ,90,000 Gold Country Seed/0-5 VT Bt,CRW,GLY ,570 0,500 Viking/ Lfy-00N ,0 0,500 Gold Country Seed/96-0 VTP Bt,CRW,GLY ,600 0,00 5 Dekalb/ DKC5-5 Bt,CRW,GLY,LL ,560 0,000 6 Seeds 000/ GT GLY ,590 9,800 7 Masters Choice/ MC ,70 9,500 8 NuTech/ 5N-80 Bt,CRW,GLY,LL ,50 9,500 9 Wensman Seed/ W 79GT Bt,CRW,GLY,LL ,50 8, Wensman Seed/ W 760VT Bt,CRW,GLY ,50 7,700 Mean ,50,800 LSD(0.0).9 ns ns 0 ns CV CB, CRW, GLY, LL traits contain genes for European corn borer tolerance, corn rootworm tolerance, and glyphosate and Liberty Link R (glufosinate-ammonium) herbicide resistance, respectively. DM yield is whole-plant corn yield at 00% dry matter; Silage yield is whole-plant corn yield at harvest moisture. Quality concentration expressed as a % of DM, except NDFD which is expressed as a % of NDF. Refer to Results Provided text for additional information. Milk production was estimated using spreadsheet MILK006 developed at the University of Wisconsin. Refer to Results Provided text for additional information. 0

8 Figure. Relationship between silage dry matter and milk per ton Silage dry matter yield, ton/acre ,00,50,500,550,600,650, Relationship between silage dry matter yield and milk per ton at Hutchinson (McLeod County) in 00. Silage dry matter yield values at or above the dashed line were among the highest in this trial at the 0% probability level. Milk per ton values at or to the right of the at the 0% probability level. Entry numbers for hybrids with silage dry matter yield and milk/ton values that were among the highest are shown. Milk, lb/ton dry matter

9 Table. Relative maturity (RM), whole-plant moisture (Moist), dry matter and silage yield, and quality traits for corn hybrids planted at Melrose (Stearns County) in 0. Green Snap 5 Pioneer Brand/ P08XR Bt,CRW,GLY,LL ,680 0,700 5 Trelay/ 6ST576 Bt,CRW,GLY,LL ,650 9,000 Gold Country Seed/0-99 GENSS Bt,CRW,GLY,LL ,660 8,800 G Genetics/ 5X-50TM Bt,CRW,GLY,LL ,690 7,700 5 Golden Harvest/ H-8 000GT Bt,CRW,GLY,LL ,60 7, NuTech/ 5N-97 Bt,CRW,GLY,LL ,60 6,700 7 Wensman Seed/ W 79GT Bt,CRW,GLY,LL ,680 6,00 8 Viking/ Lfy-00N ,60 5,000 9 Trelay/ 5VP688 Bt,CRW,GLY ,690,600 0 NK/ N9J-000GT Bt,CRW,GLY,LL ,690,00 6 Producers Hybrids/ 66GT Bt,CRW,GLY,LL ,650,00 5 Legacy Seeds/ L GT Bt,CRW,GLY,LL ,650,00 Dairyland Seed/ HiD.F Bt,CRW,GLY,LL ,60,000 Dekalb/ DKC55-09 Bt,CRW,GLY,LL ,700,500 5 Mycogen/ TMFL5 Bt,CRW,GLY,LL ,570,500 6 Renk/ RK698VT Bt,CRW,GLY ,60,00 7 Seeds 000/ GT GLY ,700, Renk/ RK5GTCBLLRW Bt,CRW,GLY,LL ,580,00 9 Gold Country Seed/0-5 VT Bt,CRW,GLY ,670, Renk/ RK6VT NDS Bt,CRW,GLY ,690,700 8 Hyland Seeds/ HL Bt,CRW,GLY,LL ,660,500 6 Dekalb/ DKC57-50 Bt,CRW,GLY ,570,00 Producers Hybrids/ 66VT Bt,CRW,GLY ,60,00 5 Hyland Seeds/ HL 0 Bt,CRW,GLY,LL ,660,900 5 Dyna-Gro Seed/ D0SS09 Bt,CRW,GLY,LL ,700,700 6 Dekalb/ DKC59-5 Bt,CRW,GLY ,60,500 7 Dyna-Gro Seed/ DVP9 Bt,CRW,GLY ,580,00 8 Gold Country Seed/0-09 VTP Bt,CRW,GLY ,680,00 9 Dairyland Seed/ HiD.F.-0-Q Bt,CRW,GLY ,560 0, NuTech/ 5N-80 Bt,CRW,GLY,LL ,680 0,800 8 Dekalb/ DKC5-5 Bt,CRW,GLY,LL ,690 0,000 9 Renk/ RK69GTCBLLRWBL Bt,CRW,GLY,LL ,690 9,900 8 Wensman Seed/ W 760VT Bt,CRW,GLY ,670 9,800 8 Gold Country Seed/07-7 VTP Bt,CRW,GLY ,670 9, Legacy Seeds/ L-0 Bt,CRW,GLY,LL ,690 9,00 6 NuTech/ 5N-0 Bt,CRW,GLY,LL ,60 9,00 7 NuTech/ 5N-00 Bt,CRW,GLY,LL ,580 8,700 8 Trelay/ 6VT5 Bt,CRW,GLY ,660 8,00 9 Mycogen/ TMFR5 Bt,CRW,GLY,LL ,660 8, Trelay/ 6VP98 Bt,CRW,GLY ,690 7,800 9 Pioneer Brand/ P05XR Bt,CRW,GLY,LL ,690 6,00 8 Gold Country Seed/00-07 VT Bt,CRW,GLY ,70 5,900 G Genetics/ 5X-000TM Bt,CRW,GLY,LL ,70 5,500 0 Gold Country Seed/96-0 VTP Bt,CRW,GLY ,680,00 5 Masters Choice/ MC ,60,900 6 Dyna-Gro Seed/ D5RR0 GLY ,70,700 7 G Genetics/ 5H-797TM Bt,GLY,LL ,680,00 8 Dekalb/ DKC5-78 Bt,CRW,GLY,LL ,700,000 9 Trelay/ VP76 Bt,CRW,GLY ,680 0, Dairyland Seed/ HiD.F Bt,CRW,GLY,LL ,60 9,900 9 Mean ,660 0,800 LSD(0.0) ,00 CV CB, CRW, GLY, LL traits contain genes for European corn borer tolerance, corn rootworm tolerance, and glyphosate and Liberty Link R (glufosinate-ammonium) herbicide resistance, respectively. DM yield is whole-plant corn yield at 00% dry matter; Silage yield is whole-plant corn yield at harvest moisture. Quality concentration expressed as a % of DM, except NDFD which is expressed as a % of NDF. Refer to Results Provided text for additional information. Milk production was estimated using spreadsheet MILK006 developed at the University of Wisconsin. Refer to Results Provided text for additional information. 5 Due to a windstorm, greensnap damage occurred on July 0 at this site.

10 Figure. Relationship between silage dry matter and milk per ton.. 0. Silage dry matter yield, ton/acre ,50,568,606,65,68,7,760 Relationship between silage dry matter yield and milk per ton at Melrose (Stearns County) in 00. Silage dry matter yield values at or above the at the 0% probability level. Milk per ton values at or to the right of the at the 0% probability level. Entry numbers for hybrids with silage dry matter yield and milk/ton values that were among the highest are shown. Milk, lb/ton dry matter

11 Table 5. Relative maturity (RM), whole-plant moisture (Moist), dry matter and silage yield, and quality traits for corn hybrids planted at Ottertail (Otter Tail County) in 0. Gold Country Seed/07-7 VTP Bt,CRW,GLY ,690 5,600 Gold Country Seed/0-5 VT Bt,CRW,GLY ,660,600 Gold Country Seed/0-09 VTP Bt,CRW,GLY ,680,500 Pioneer Brand/ P08XR Bt,CRW,GLY,LL ,680,700 5 Renk/ RK698VT Bt,CRW,GLY ,680,600 6 Gold Country Seed/0-99 GENSS Bt,CRW,GLY,LL ,60,00 7 Dyna-Gro Seed/ D5RR0 GLY ,690,800 8 Seeds 000/ 90 GT GLY ,70,00 9 REA Hybrids/ 5R780-HDS Bt,CRW,GLY ,60,700 0 Pioneer Brand/ P05XR Bt,CRW,GLY,LL ,690,00 Hyland Seeds/ HL Bt,CRW,GLY,LL ,650 0,00 Dyna-Gro Seed/ DVP9 Bt,CRW,GLY ,670 8,900 Gold Country Seed/96-0 VTP Bt,CRW,GLY ,690 8,800 Dyna-Gro Seed/ CX9 Bt,CRW,GLY ,690 8,600 5 REA Hybrids/ V0-HDS Bt,CRW,GLY ,60 7,600 6 Gold Country Seed/9-9 VTP Bt,CRW,GLY ,670 7,00 7 Hyland Seeds/ HL0 Bt,CRW,GLY,LL ,600 7,000 8 Dairyland Seed/ Hi.F Bt,CRW,GLY,LL ,660 6,900 9 Gold Country Seed/00-07 VT Bt,CRW,GLY ,700,700 Mean ,670 0,700 LSD(0.0) ,00 CV CB, CRW, GLY, LL traits contain genes for European corn borer tolerance, corn rootworm tolerance, and glyphosate and Liberty Link R (glufosinateammonium) herbicide resistance, respectively. The LF trait denotes leafy silage. DM yield is whole-plant corn yield at 00% dry matter; Silage yield is whole-plant corn yield at harvest moisture. Quality concentration expressed as a % of DM, except NDFD which is expressed as a % of NDF. Refer to Results Provided text for additional information. Milk production was estimated using spreadsheet MILK006 developed at the University of Wisconsin. Refer to Results Provided text for additional information. Figure 5. Relationship between silage dry matter and milk per ton. Silage dry matter yield, ton/acre ,570,600,60,660,690,70, Relationship between silage dry matter yield and milk per ton at Ottertail, MN (Otter Tail County) in 00. Silage dry matter yield values at or above the dashed line were among the highest in this trial at the 0% probability level. Milk per ton values at or to the right of the at the 0% probability level. Entry numbers for hybrids with silage dry matter yield and milk/ton values that were among the highest are shown. Milk, lb/ton dry matter

12 Table 6. Relative maturity (RM), whole-plant moisture (Moist), dry matter and silage yield, and quality traits for corn hybrids planted at Underwood (Otter Tail County) in 0. Gold Country Seed/07-7 VTP Bt,CRW,GLY ,600 9,800 Gold Country Seed/0-5 VT Bt,CRW,GLY ,60 8,800 Pioneer Brand/ P05XR Bt,CRW,GLY,LL ,50 8,000 Pioneer Brand/ P08XR Bt,CRW,GLY,LL ,80 6,900 5 Gold Country Seed/0-09 VTP Bt,CRW,GLY ,560 6,00 6 Gold Country Seed/0-99 GENSS Bt,CRW,GLY,LL ,60 5,800 7 Hyland Seeds/ HL0 Bt,CRW,GLY,LL ,50 5,00 8 Hyland Seeds/ HL Bt,CRW,GLY,LL ,550 5,00 9 Seeds 000/ 90 GT GLY ,0,00 0 REA Hybrids/ V0-HDS Bt,CRW,GLY ,00,00 Dyna-Gro Seed/ DVP9 Bt,CRW,GLY ,0,00 Renk/ RK698VT Bt,CRW,GLY ,0,800 Dairyland Seed/ Hi.F Bt,CRW,GLY,LL ,50,700 Gold Country Seed/96-0 VTP Bt,CRW,GLY ,550 0,00 5 Gold Country Seed/00-07 VT Bt,CRW,GLY ,550 0,00 6 REA Hybrids/ 5R780-HDS Bt,CRW,GLY ,00 0,00 7 Dyna-Gro Seed/ CX9 Bt,CRW,GLY ,50 9,00 8 Dyna-Gro Seed/ D5RR0 GLY ,90 6,700 9 Gold Country Seed/9-9 VTP Bt,CRW,GLY ,60,700 Mean ,60,00 LSD(0.0) ns 6 ns 6,00 CV CB, CRW, GLY, LL traits contain genes for European corn borer tolerance, corn rootworm tolerance, and glyphosate and Liberty Link R (glufosinate- ammonium) herbicide resistance, respectively. The LF trait denotes leafy silage. DM yield is whole-plant corn yield at 00% dry matter; Silage yield is whole-plant corn yield at harvest moisture. Quality concentration expressed as a % of DM, except NDFD which is expressed as a % of NDF. Refer to Results Provided text for additional information. Milk production was estimated using spreadsheet MILK006 developed at the University of Wisconsin. Refer to Results Provided text for additional information. Figure 6. Relationship between silage dry matter and milk per ton.. Silage dry matter yield, ton/acre ,00,60,0,80,0,00, Relationship between silage dry matter yield and milk per ton at Underwood, MN (Otter Tail County) in 00. Silage dry matter yield values at or above the dashed line were among the highest in this trial at the 0% probability level. Milk per ton values at or to the right of the at the 0% probability level. Entry numbers for hybrids with silage dry matter yield and milk/ton values that were among the highest are shown. Milk, lb/ton dry matter 5