2001 Wisconsin Corn Hybrid Performance Trial Results

Transcription

1 A Wisconsin Corn Hybrid Performance Trial Results Grain and Silage Department of Agronomy College of Agricultural and Life Sciences University of Wisconsin Wisconsin Crop Improvement Association

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3 December, 2001 A WISCONSIN CORN HYBRID PERFORMANCE TRIALS GRAIN AND SILAGE Joe Lauer, Kent Kohn, and Pat Flannery The University of Wisconsin Extension- Madison and College of Agricultural and Life Sciences conduct a hybrid corn evaluation program, in cooperation with the Wisconsin Crop Improvement Association. The purpose of this program is to provide unbiased performance comparisons of hybrid seed corn available in Wisconsin. These trials evaluate corn hybrids for both grain and silage production performance. TESTING PROCEDURE In 2001, grain and silage performance trials were planted at thirteen locations in four production zones. Both seed companies and university researchers submitted hybrids. Companies with hybrids included in the 2001 trials are listed in Table 1. At most locations trials were divided into early and late maturity trials, based on the hybrid Relative Maturities provided by the companies. The specific Relative Maturities separating early and late trials are listed below. Grain Southern Zone Arlington, Janesville, Lancaster South Central Zone Fond du Lac, Galesville, Hancock (irrigated) North Central Zone Chippewa Falls, Marshfield, Seymour, Valders Northern Zone Spooner (three sites), White Lake, and Ashland Silage Southern Zone Arlington and Lancaster South Central Zone Fond du Lac and Galesville North Central Zone Marshfield and Valders Early Maturity Trial: 105-day or earlier Late Maturity Trial: later than 105-day Early Maturity Trial: 100-day or earlier Late Maturity Trial: later than 100-day Early Maturity Trial: 90-day or earlier Late Maturity Trial: later than 90-day Early Maturity Trial: 105-day or earlier Late Maturity Trial: later than 105-day Early Maturity Trial: 100-day or earlier Late Maturity Trial: later than 100-day Early Maturity Trial: 90-day or earlier Late Maturity Trial: later than 90-day Table 4 Table 5 Table 6 Table 7 Table 8 Table 9 Table 10 Table 17 Table 11 Table 12 Table 13 Table 14 Table 15 Table 16 Northern Zone Ashland Table 18 GROWING CONDITIONS FOR 2001 Seasonal precipitation and temperature at the trial sites are shown in Table 2. Both grain and silage yields were above normal in southern Wisconsin. Both grain and silage yields were variable in northern Wisconsin. Dry conditions during April allowed corn planting to progress faster than the five-year average. Planting progress slowed in May with much of northern Wisconsin corn acreage delayed significantly. Cool, wet conditions during most of May and early June slowed corn development. Dry, hot weather during pollination lowered yields with drought conditions existing in northeastern Wisconsin. Favorable rainfall patterns

4 occurred during late August and September and helped some late planted fields. Growing degree unit accumulation was normal throughout the entire growing season. Corn silage harvest started slightly later than normal. A killing frost did not occur until mid- October. Excellent plant standability was observed in most trials. During the fall harvest season, yields were generally good to excellent, and moisture was low decreasing drying costs and somewhat offsetting low corn prices for many farmers. Significant drought occurred at the Valders location, while flooding during May and June affected corn yields at Marshfield. Since all plots of a few hybrids had to be dropped, the Performance Index mean of the North and North Central trials does not equal 100. CULTURAL PRACTICES The seedbed at each location was prepared by either conventional or conservation tillage methods. Fertilizer was applied as indicated by soil tests. Herbicides were applied for weed control and supplemented with cultivation when necessary. Corn rootworm insecticide was applied when the previous crop was corn. Information for each location is summarized in Table 3. PLANTING Plots were planted with a corn planter except for trials at Ashland in the Northern Zone, which were hand-planted. Two-row plots were planted at all locations except Ashland, where one-row plots were used. Twenty-five foot long plots were over planted and hand thinned to achieve as near a uniform stand as possible. Each hybrid was grown in at least three separate plots (replicates) at each location to account for field variability. HARVESTING Grain: Plots were harvested with a self-propelled corn combine or shelled with a portable field sheller. Lodged plants and/or broken stalks were counted, plot grain weights and moisture contents were measured and yields were calculated and adjusted to 15.5% moisture. Silage: Whole-plant (silage) plots were harvested using a tractor driven, three-point mounted one-row chopper. At Ashland, plots were hand-harvested. One row was analyzed for whole plant yield and quality. Kernel milk percent, plot weight, and moisture content were measured, and yields were adjusted to tons dry matter / acre. A sub-sample was collected and analyzed using near infra-red spectroscopy by the Marshfield Forage Analysis Laboratory. PRESENTATION OF DATA Yield results for individual location trials and for multi-location averages are listed in Tables 4 through 18. Within each trial, hybrids are ranked by moisture, averaged over all 2001 locations conducted in that zone. Yield and moisture data for both 2000 and 2001 are provided if the hybrid was entered previously in the 2000 trials. A hybrid index is lists relative maturity ratings, specialty traits and locations tested for each hybrid. RELATIVE MATURITY Seed companies use different methods and standards to classify or rate the maturity of corn hybrids. To provide corn producers a standard maturity comparison for the hybrids evaluated, the average grain moisture of all hybrids that are rated at appropriate relative maturities by the Minnesota Relative Maturity rating system are shown in each table. Minnesota Relative Maturity ratings are rounded to 5-day increments. This system categorizes corn hybrids into relative maturity groups by comparing harvest grain moisture of evaluated hybrids to moisture of standard hybrids for each group (see Minnesota Relative Maturity Rating of Corn Hybrids, Agriculture Extension Service, University of Minnesota, Agronomy No. 27). Hybrids with lower moisture than a particular relative maturity average are likely to be earlier than that relative maturity, while those

5 with higher grain moisture are most likely later in relative maturity. In addition, the hybrid index lists company maturity ratings, Minnesota relative maturity ratings, and a Wisconsin comparative relative maturity (CRM) rating. The Wisconsin CRM rating is an average relative maturity rating comparison among commercially available hybrids at the same grain moisture using company maturity ratings. PERFORMANCE INDEX Three factors yield, moisture, and standability are of primary importance in evaluating and selecting corn hybrids. A performance index (P.I.), which combines these factors in one number, was calculated for multi-location averages for grain trials. This performance index evaluates yield, moisture %, and lodged stalks % at a 50 (yield) : 35 (moisture %) : 15 (lodged stalks %) ratio. The performance index was computed by converting the yield, dry matter, and upright stalk values of each hybrid to a percentage of the test average. Then the performance index for each hybrid that appears in the tables was calculated as follows: PI = [(Yield % x 50) + (Dry matter % x 35) + (Upright stalks % x 15)] / 100 SILAGE QUALITY Corn silage quality was analyzed using near infra-red spectroscopy equations derived from previous work of Drs. Jim Coors and Joe Lauer (UW-Madison). Plot samples were dried, ground and analyzed for crude protein (CP), acid detergent fiber (ADF), neutral detergent fiber (NDF), in vitro cell wall digestibility (CWD), in vitro digestibility (IVD), and starch. Spectral groups and outliers were checked using wet chemistry analysis. MILK2000 silage performance indices, milk per ton and milk per acre, are calculated using an adaptation by Eric Schwab and Randy Shaver (UW-Madison Dairy Science Department) of the MILK95 model (Undersander, Howard and Shaver; Journal Production Agriculture 6: ). In Milk2000, the energy content of corn silage was estimated using a modification of a published summative energy equation (Weiss and co-workers, 1992; Animal Feed Science Technology 39:95-110). In the modified summative equation, CP, fat, NDF, starch, and sugar plus organic acid fractions were included along with their corresponding totaltract digestibility coefficients for estimating the energy content of corn silage. A regression equation developed from literature data was used to predict total tract starch digestibility from the samples whole-plant dry matter content. The samples lab measure of CWD was used for the NDF digestibility coefficient. Digestibility coefficients used for the CP, fat, and sugar plus organic acid fractions were constants. Dry matter intake was estimated using the samples NDF content and CWD assuming a 1350 lb. cow consuming a 30% NDF diet. Using National Research Council (NRC, 1989) energy requirements, the intake of energy from corn silage was converted to expected milk per ton. Because the cows maintenance energy requirements were partitioned against the total diet in MILK2000 rather than against only corn silage as was done in MILK95, there was a base increase in our new estimate of milk per ton which was of equal value across all samples that did not influence ranking. Milk per acre was calculated using milk per ton and dry matter yield per acre estimates. LEAST SIGNIFICANT DIFFERENCE Variations in yield and other characteristics occur because of variations in soil and other growing conditions that lower the precision of the results. Statistical analysis makes it possible to determine, with known probabilities of error, whether a difference is real or whether it might have occurred by chance. Use the appropriate LSD (least significant difference) value at the bottom of the tables to determine true differences.

6 Least significant differences (LSD s) at the 10% level of probability are shown. Where the difference between two selected hybrids within a column is equal to or greater than the LSD value at the bottom of the column, you can be sure in nine out of ten chances that there is a real difference between the two hybrid averages. If the difference is less than the LSD value, the difference may still be real, but the experiment has produced no evidence of real differences. Hybrids that were not significantly lower in performance than the highest hybrid in a particular test are indicated with an asterisk. HOW TO USE THESE RESULTS TO SELECT TOP-PERFORMING HYBRIDS The results can be used to provide producers with an independent, objective evaluation of performance of unfamiliar hybrids, promoted by seed company sales representatives, compared to competitive hybrids. Below are suggested steps to follow for selecting top-performing hybrids for next year using these trial results: 1. Use multi-location average data in shaded areas. Consider single location results with extreme caution. 2. Begin with trials in the zone(s) nearest you. 3. Compare hybrids with similar maturities within a trial. You will need to divide most trials into at least two and sometimes three groups with similar average harvest moisture within about 2% range in moisture. 4. Make a list of 5 to 10 hybrids with highest 2001 Performance Index within each maturity group within a trial. 5. Evaluate consistency of performance of the hybrids on your list over years and other zones. a) Scan 2000 results. Be wary of any hybrids on your list that had a 2000 Performance Index of 100 or lower. Choose two or three of the remaining hybrids that have relatively high Performance Indexes for both 2000 and b) Check to see if the hybrids you have chosen were entered in other zones. (For example, some hybrids entered in the Southern Zone Trials, Tables 4 and 5, are also entered in the South Central Zone Trials, Tables 6 and 7). c) Be wary of any hybrids with a Performance Index of 100 or lower for 2000 or 2001 in any other zones. 6. Repeat this procedure with about three maturity groups to select top-performing hybrids with a range in maturity, to spread weather risks and harvest time. 7. Observe relative performance of the hybrids you have chosen based on these trial results in several other reliable, unbiased trials and be wary of any with inconsistent performance. 8. You might consider including the hybrids you have chosen in your own test plot, primarily to evaluate the way hybrids stand after maturity, dry-down rate, grain quality, or ease of combine-shelling or picking. 9. Remember that you don t know what weather conditions (rainfall, temperature) will be like next year. Therefore, the most reliable way to choose hybrids with greatest chance to perform best next year on your farm is to consider performance in 2000 and 2001 over a wide range of locations and climatic conditions. You are taking a tremendous gamble if you make hybrid selection decisions based on 2001 yield comparisons in only one or two local test plots. OBTAINING DATA ELECTRONICALLY This report is also available on the internet at Hybrid performance for the last 10 years can be summarized using SELECT! at the above internet address. This book can be downloaded over the internet in a Microsoft Excel format.

7 Table 1. Companies with hybrids included in 2001 trials Brand Company Address City State Zip AgriGold AgriGold Hybrids R.R. 1 Box 203 St. Francisville IL Asgrow Monsanto Co Sycamore Road Dekalb IL Bio Gene Bio Gene Seeds 5491 Tri-County Hwy Sardinia OH Brown Brown Seed, Inc N th Street P.O. Box 7 Bay City WI Brunner Brunner Seed Farm W3850 U.S. Hwy 10 Durand WI Cargill Mycogen Seeds 9330 Zionsville Road Indianapolis IN Carhart's Blue Top Carhart's Blue Top Seed, Inc. N14743 County Road M Galesville WI Cornelius Cornelius Seed th Street Bellevue IA Croplan Genetics Croplan Genetics 180 Lynne Trail Oregon WI Crows Crows Hybrid Corn Co. P.O. Box 157 Kentland IN Dahlco Dahlco Seeds th ST SW Cokato MN Dahlman Dahlman Seed Co. LLP th Street Dassell MN Dairyland Dairyland Seed P.O. Box 958 West Bend WI Dekalb Monsanto Co Sycamore Road Dekalb IL Dynagro UAP Great Lakes 5201 Cortland Midland MI Foundation Foundation Direct Seeds th Ave N Onalaska WI Garst Garst Seed Company 5366 Lee Lane Coon Valley WI Geertson Geertson Seed Farms 1665 Burroughs Road Adrian OR Golden Harvest Golden Harvest th Ave. North Cordova IL Growmark Growmark, Inc Towanda Ave Bloomington IL Gutwein Gutwein Rt 1, Box 40 Francesville IN High Cycle Trelay Seeds Hwy 80 Livingston WI Hughes Hughes Hybrids 206 North Hughes Rd Woodstock IL Hyland Seeds Hyland Seeds 2 Hyland Drive Blenheim Ontario Canada Jeske Jeske Seed Farm W8598 Cty Rd S Hortonville WI Johnson Seeds Johnson Seeds Inc th Street Dassel MN Jung Jung Seed Genetics, Inc. 341 South High Street Randolph WI Kaltenberg Kaltenberg Seeds 5506 State Hwy 19 Waunakee WI Kussmaul Kussmaul Seed Company 9020 HWY 18 Mt. Hope WI La Crosse Forage La Crosse Forage and Turf Seed 2541 Commerce Street La Crosse WI Lemke Lemke Seed Farms, Inc North Granville Mequon WI LG Seeds LG Seeds 710 North Main, Suite 201 River Falls WI Mallard Mallard Seed Co, Inc. P.O. Box 637 Plainview MN Midwest Midwest Seed Genetics P.O. Box 518 Carroll IA Mycogen Mycogen Seeds 9330 Zionsville Road Indianapolis IN NK Brand Syngenta Seeds 320 Mohawk Trail DeForest WI North-Gro North-Gro Seeds, Inc. 613 Randolph Street Cuba City WI O'Brien O'Brien Farms Inc. 552 Glenway Road Brooklyn WI Ottilie Ottilie RO Seed 1462 Sanford Marshalltown IA Pioneer Pioneer Hi-Bred Int'l W Rose-Eld Rd. Rosendale WI Quality Traders Quality Traders, Inc North Waukegan Road Bannockburn IL Ragt Semences Ragt Semences Site de Bourran, Ave. St. Pierra BP Rodez cedex 9 France Ramy Ramy International Ltd 1329 Riverfront Drive N Mankato MN Renk Renk Seed Company 6800 Wilburn Road Sun Prairie WI Silage-Fame M & M Biotechnologies P.O. Box 146 Eagle Grove IA Spangler Spangler Seedtech, Inc. 803 West Racine Street Jefferson WI Top Farm Top Farm Hybrids, Inc P.O. Box 850 Cokato MN Trelay Trelay Seeds Hwy 80 Livingston WI US Seeds United Suppliers, Inc. P.O. Box 538 Eldora IA Wensman Wensman Seed P.O. Box 190 Wadena MN Wyffels Wyffels Hybrids P.O. Box 246 Atkinson IL 61235

8 Table Temperature and Precipitation Summary May June July August September Temperature Average Departure Average Departure Average Departure Average Departure Average Departure Location Precipitation Total Departure Total Departure Total Departure Total Departure Total Departure Arlington Temperature Precipitation Ashland Temperature Precipitation Chippewa Falls Temperature (Eau Claire) Precipitation Fond du Lac Temperature Precipitation Galesville Temperature (Tremp. Dam #6) Precipitation Hancock* Temperature Precipitation Irrigation Janesville Temperature (Beloit) Precipitation Lancaster Temperature Precipitation Marshfield Temperature Precipitation Seymour Temperature (Green Bay) Precipitation Spooner* Temperature Precipitation Irrigation Valders Temperature (Manitowoc) Precipitation White Lake Temperature (Antigo) Precipitation *Irrigation applied at Hancock and Spooner - Irrigated Sand Trials.

9 Table 3. Individual Trial Information Trials Soil Previous Row Plant- Harvest Ave. Final Tillage --Soil Test-- --Nitrogen Fertilizer-- Insect- Location Cooperators Type Crop Width ing Dates Stand Operations ph P K actual form time Weed Control icides (in) Date (plants/a) --(ppm)-- (lb/a) Arlington S.Kraak Plano Soybean Apr GE:16-Oct G:31026 Fall Chisel preplant Harness 2.5 pt/a None J. Quimby Silt Loam GL:25-Oct S:34138 Field Cultivator planting Permit 0.66 oz/a S: 14-Sept cultivate Ashland M. Mlynarek Allendale Corn 30 4-May G: 21-Sept G:32845 Moldboard Plow preplant Lasso 2.0 qts/a None Loamy Fine Sand S: 17-Sept S:33200 Disk Bladex 2.0 qts/a Permit 1.33 oz/a cultivate Chippewa Falls J. Clark Sattre Corn Apr G: 17-Oct G:28791 Chisel Plow preplant Harness 1.7 qt/a Lorsban Silt Loam Field Cultivator planting Hornet 2.4 oz/a 7lbs/A cultivate Fond du Lac M. Rankin Virgil Soybean May G: 29-Oct G:29589 Moldboard Plow preplant Dual II Mag 0.75pt/A None E. Montsma Silt Loam S: 4-Oct S:31837 Field Cultivator planting Accent Gold 2.9 oz/a post Artazine 0.5 lb/a cultivate Galesville K. Congdon Downs Soybean Apr G: 17-Oct G:30122 Field Cultivator preplant Dual II 2.25 pt/a None J. Zander Silt Loam S: 11-Sept S: planting Hornet 5.0 oz/a Hancock J. Breuer Plainfield Soybean Apr G: 12-Oct G:29820 Moldboard Plow planting Aatrex 4L 0.75 lb/a None Irrigated C. Kostichka Sand Disk post Lasso 2.0 qt/a Janesville B. Jaynes Plano Soybean Apr G:11-Oct G:31014 Chisel Plow preplant Harness 2.75 qt/a None D. Nehring Silt Loam Field Cultivator planting Hornet 4.5 oz/a cultivate Lancaster T. Wood Fayette G: Soybean Apr G: 15-Oct G:28598 G:Soil Finisher G: preplant Roundup Ultra 1.0 qt/a None D. Heimdal Silt Loam planting Aatrex 4L 1.0 qt/a Harness 1.0 qt/a S: Alfalfa S: 12-Sept S:30762 S: Moldboard Plow S: preplant North star 5.0 oz/a Soil Finisher planting Marshfield D. Wiersma Loyal Soybean May G: 5-Nov G:21581 Field Cultivator 2x planting Harness 1.0 qt/a None T. Drendel Silt Loam S: 9-Oct S: post Hornet 2.4 oz/a cultivate Seymour R. Vanden Heuvel Clay Loam Corn May G: 29-Oct G:29276 Chisel Plow planting Accent 0.33 oz/a Lorsban Z. Miller Soil Finisher 9000 gal/a Manure preplant Northstar 4.0 oz/a 7lbs/A cultivate Spooner M. Bertrum Cress Alfalfa 30 5-May G:16-Oct G:26318 Moldboard Plow planting Dual II Mag 1.2 pt/a None Dryland Sandy Loam Disk post Northstar 5.0 oz/a 13 Ton Sheep Manure cultivate Spooner M. Bertrum Cress Alfalfa 30 5-May G: 12-Oct G:32487 Moldboard Plow planting Dual II Mag 1.2 pt/a None Irrigated Sandy Loam Disk post Northstar 5.0 oz/a 13 Ton Sheep Manure cultivate Spooner M. Bertrum Antigo Corn 30 5-May G: 17-Oct G:29265 Moldboard Plow planting Roundup Ultra Max 38 oz/a None Silt Loam Silt Loam Disk post Dual II Mag 1.2 pt/a Northstar 5.0 oz/a cultivate Valders S. Hendrickson Kewaunee Corn 30 2-May G: 1-Nov G:29242 Moldboard Plow planting Surpass 1.0 pt/a Lorsban J. Maney Clay Loam S: 20-Sept S:31336 Field Cultivator 9000 gal/a Manure preplant Accent 0.33 oz/a 7lbs/A T.& B. Maney Distinct 4.0 oz/a cultivate White Lake J. Wahleithner Antigo Soybeans 30 8-May G: 2-Nov G:28585 Moldboard Plow planting Atrazine 1.0 lb/a None Silt Loam Disk preplant Harness Xtra 1.5 qt/a Note: G=Grain, S=Silage, E=Early Trial, L=Late Trial.

10 Table 4. Southern Zone - Early Maturity Grain Trial (page 1 of 2) 105 DAY RELATIVE MATURITY OR EARLIER, BASED ON COMPANY RATING (ARLINGTON = ARL, JANESVILLE = JAN, LANCASTER = LAN) AVERAGE ARL JAN LAN AVERAGE ARL JAN LAN Yield Moist Test Lodged P.I. Yield Yield Yield Yield Moist Test Lodged P.I. Yield Yield Yield BRAND HYBRID bu/a % Wt. % # bu/a bu/a bu/a bu/a % Wt. % # bu/a bu/a bu/a Cornelius C311RR Carharts Blue Top CR102RR Carharts Blue Top CX1200A Wyffels W * Croplan Genetics Renk RK NK Brand N45T Wyffels W Renk RK Jung OBrien OB La Crosse Forage LC Hughes * Hughes Jung Spangler * * 222 * 170 Wyffels W Croplan Genetics Midwest G7101B * * * * 204 * Hughes NK Brand N45A Top Farm TFSX Renk RK * Garst * 228 * Cornelius C377YG DAY HYBRID TRIAL AVERAGE## 22.5 Pioneer 36R * 189 Geertson GS Jung 6580Bt Croplan Genetics * Golden Harvest H * Quality Traders QC Cornelius C * 188 Carharts Blue Top CX1056A Hughes Kaltenberg K Trelay Pioneer 35R * * * * 195 * Brown * 176 Wyffels W Golden Harvest H North-Gro LG Seeds LG Ottilie * 188 North-Gro Kussmaul K AgriGold A Jung * * * Quality Traders QC DAY HYBRID TRIAL AVERAGE## 23.4 Top Farm TFSX105Bt * Dairyland Stealth Cornelius C408YG * * 226 * 225 * 207 * AgriGold A * * 250 * * * 241 * 235 * 184 Dekalb DKC * * 234 * 234 * 213 * CONTINUED.

11 Table 4. Southern Zone - Early Maturity Grain Trial (page 2 of 2) 105 DAY RELATIVE MATURITY OR EARLIER, BASED ON COMPANY RATING (ARLINGTON = ARL, JANESVILLE = JAN, LANCASTER = LAN) AVERAGE ARL JAN LAN AVERAGE ARL JAN LAN Yield Moist Test Lodged P.I. Yield Yield Yield Yield Moist Test Lodged P.I. Yield Yield Yield BRAND HYBRID bu/a % Wt. % # bu/a bu/a bu/a bu/a % Wt. % # bu/a bu/a bu/a Carharts Blue Top CX1055A Asgrow RX592RR * 185 Trelay US Seeds USC1051ND Pioneer 35R * * 239 * 237 * 219 * 217 * * * 215 * Cornelius C Garst * Growmark FS Wyffels W * * * 187 LG Seeds LG Asgrow RX601RRYG 223 * * 242 * 242 * 186 Dairyland Stealth Renk RK North-Gro US Seeds USC * Gutwein * * * Dynagro * Pioneer 36B Dairyland Stealth * 171 US Seeds USE Ottilie * LG Seeds LG * * 234 * 233 * 206 * * MEAN LSD(0.10)** # P.I. = Performance Index, evaluates hybrids by combining yield, moisture, and lodged % at a 50(yield) : 35(moisture) : 15(lodged) ratio. ## Average grain moisture of all hybrids in this trial as rated by the Minnesota Relative Maturity Rating System. Ratings are rounded to 5-day increments. * Hybrids which did not perform significantly less than the highest hybrid in the test. Shaded results provide the best estimate of relative hybrid performance.

12 Table 5. Southern Zone - Late Maturity Grain Trial (page 1 of 2) 106 DAY RELATIVE MATURITY OR LATER, BASED ON COMPANY RATING (ARLINGTON = ARL, JANESVILLE = JAN, LANCASTER = LAN) AVERAGE ARL JAN LAN AVERAGE ARL JAN LAN Yield Moist Test Lodged P.I. Yield Yield Yield Yield Moist Test Lodged P.I. Yield Yield Yield BRAND HYBRID bu/a % Wt. % # bu/a bu/a bu/a bu/a % Wt. % # bu/a bu/a bu/a OBrien OB Spangler Cornelius C * * 231 * 230 * 181 Golden Harvest H * * * 180 NK Brand N59Q * 185 Dekalb DKC Growmark FS * 169 Mycogen * 169 Mycogen 5320Bt * 222 * * 236 * 228 * 203 * Top Farm TFSX Dairyland Stealth * * 232 * 163 Kaltenberg K * * * 233 * 231 * 185 Garst 8590IT * 161 Hughes Gutwein * Brunner S5610RR Hughes Ramy R Hughes Growmark FS * * * 245 * 228 * 169 La Crosse Forage LC DAY HYBRID TRIAL AVERAGE## 23.8 Kussmaul KHC Carharts Blue Top CX1079A Jung Quality Traders QC Pioneer 35Y * * 232 * 237 * 222 * AgriGold A Renk RK * Kussmaul K Pioneer 34B * 231 * 251 * * * 240 * 184 Dekalb DKC * 236 * Hughes Brown 6895Bt * 241 * Trelay * Cornelius C590YG * Dairyland Stealth 1507Bt * 245 * 240 * 197 Spangler Wyffels W * * * 231 * 236 * 182 AgriGold A6333Bt * Ottilie 4777Bt * 241 * 236 * * * 236 * 234 * 207 * Crows C438B * 236 * Geertson GS Carharts Blue Top CX1080A Trelay * LG Seeds LG DAY HYBRID TRIAL AVERAGE## 25.1 North-Gro * Wyffels W Wyffels W US Seeds USC Pioneer 34G * OBrien OB NK Brand N58D * 240 * * 187 Growmark FS CONTINUED.

13 Table 5. Southern Zone - Late Maturity Grain Trial (page 2 of 2) 106 DAY RELATIVE MATURITY OR LATER, BASED ON COMPANY RATING (ARLINGTON = ARL, JANESVILLE = JAN, LANCASTER = LAN) AVERAGE ARL JAN LAN AVERAGE ARL JAN LAN Yield Moist Test Lodged P.I. Yield Yield Yield Yield Moist Test Lodged P.I. Yield Yield Yield BRAND HYBRID bu/a % Wt. % # bu/a bu/a bu/a bu/a % Wt. % # bu/a bu/a bu/a Kaltenberg K * LG Seeds LG Asgrow RX * Dairyland Stealth * 238 * 236 * * Kussmaul K * Cornelius C600RR * * 224 * * US Seeds USC1119RR * * * 192 NK Brand N60N Trelay Dekalb DKC * * 237 * 241 * 217 * Jung * NK Brand N67T * Crows C * * * 201 * Geertson GS Midwest G * Dekalb DKC * 233 * 236 * 216 * AgriGold XA Mallard UC * North-Gro Brown * 244 * Dairyland Stealth * * 234 * * 218 * * 204 * AgriGold A * Jung 6700Bt * 240 * Spangler * * * 231 * North-Gro * 239 * 243 * 201 Wyffels W * * 229 * 230 * 201 * Dynagro * Garst * * 162 US Seeds USC1119ND Wyffels W Ottilie 5267Bt * 238 * * * 236 * * Golden Harvest H8977Bt Pioneer 33A * * 242 * 251 * 234 * MEAN LSD(0.10)** # P.I. = Performance Index, evaluates hybrids by combining yield, moisture, and lodged % at a 50(yield) : 35(moisture) : 15(lodged) ratio. ## Average grain moisture of all hybrids in this trial as rated by the Minnesota Relative Maturity Rating System. Ratings are rounded to 5-day increments. * Hybrids which did not perform significantly less than the highest hybrid in the test. Shaded results provide the best estimate of relative hybrid performance.

14 Table 6. South Central Zone - Early Maturity Grain Trial (page 1 of 2) 100 DAY RELATIVE MATURITY OR EARLIER, BASED ON COMPANY RATING (FOND DU LAC = FON, GALESVILLE = GAL, HANCOCK = HAN) AVERAGE FON GAL HAN AVERAGE FON GAL HAN Yield Moist Test Lodged P.I. Yield Yield Yield Yield Moist Test Lodged P.I. Yield Yield Yield BRAND HYBRID bu/a % Wt. % # bu/a bu/a bu/a bu/a % Wt. % # bu/a bu/a bu/a Brunner EXP OBrien OB NK Brand N32L Spangler Mallard UC Carharts Blue Top CX9500AA La Crosse Forage LC Dekalb DKC * * * Golden Harvest H6775Bt Trelay Dekalb DKC Dekalb DKC NK Brand N43C * 215 * Foundation FDSX * * 176 * 220 * 250 * LG Seeds LG2481RR Jung 6555RR * DAY HYBRID TRIAL AVERAGE## 22.4 Top Farm TFSX Growmark FS * * * 247 * 192 * * 206 * * Top Farm TFSX8201RR * 192 Midwest G7101B 222 * * 187 * 221 * 259 * 199 * * 211 * 200 * 188 * Johnson Seeds 2245RR Top Farm TFSX8103RR High Cycle 7419Bt * Brunner S4801E Kaltenberg K5151Bt 218 * * * 257 * Mycogen Crows C217B 211 * * 178 * 227 * * * * 181 * LG Seeds LG * US Seeds USC971CL Renk RK Top Farm TFSX Kussmaul K Renk RK * 223 Jung 6455Bt 211 * * 177 * 219 * 236 Carharts Blue Top CR102RR * Renk RK * * Lemke 4060A AgriGold XA Dekalb DKC Jung 2488A * Top Farm TFSX * Bio Gene BT * 209 Dahlman D * 199 Trelay DAY HYBRID TRIAL AVERAGE## 23.4 Kussmaul K395RR La Crosse Forage LC Lemke * Kussmaul K101AA North-Gro * 200 Renk RK Garst Dairyland Stealth Carharts Blue Top CX1200A CONTINUED.

15 Table 6. South Central Zone - Early Maturity Grain Trial (page 2 of 2) 100 DAY RELATIVE MATURITY OR EARLIER, BASED ON COMPANY RATING (FOND DU LAC = FON, GALESVILLE = GAL, HANCOCK = HAN) AVERAGE FON GAL HAN AVERAGE FON GAL HAN Yield Moist Test Lodged P.I. Yield Yield Yield Yield Moist Test Lodged P.I. Yield Yield Yield BRAND HYBRID bu/a % Wt. % # bu/a bu/a bu/a bu/a % Wt. % # bu/a bu/a bu/a Ragt Semences PG Dynagro * 226 North-Gro 5633RR Lemke 4066RR * * Top Farm TFSX Dairyland Stealth * 233 Mallard UC Pioneer 37H LG Seeds LG * 214 Brown 4630Bt Dahlco * LG Seeds LG * * 215 * 200 * 170 Kaltenberg K * 213 Garst 8790Bt * * Johnson Seeds Dairyland Stealth * 236 AgriGold A * 198 * * 223 * 198 * 174 * Asgrow RX452YG * North-Gro Trelay * 219 Brunner EXP * 207 MEAN LSD(0.10)** # P.I. = Performance Index, evaluates hybrids by combining yield, moisture, and lodged % at a 50(yield) : 35(moisture) : 15(lodged) ratio. ## Average grain moisture of all hybrids in this trial as rated by the Minnesota Relative Maturity Rating System. Ratings are rounded to 5-day increments. * Hybrids which did not perform significantly less than the highest hybrid in the test. Shaded results provide the best estimate of relative hybrid performance.

16 Table 7. South Central Zone - Late Maturity Grain Trial (page 1 of 2) 101 DAY RELATIVE MATURITY OR LATER, BASED ON COMPANY RATING (FOND DU LAC = FON, GALESVILLE = GAL, HANCOCK = HAN) AVERAGE FON GAL HAN AVERAGE FON GAL HAN Yield Moist Test Lodged P.I. Yield Yield Yield Yield Moist Test Lodged P.I. Yield Yield Yield BRAND HYBRID bu/a % Wt. % # bu/a bu/a bu/a bu/a % Wt. % # bu/a bu/a bu/a Jung 6560RRBt Dahlman D5102Bt 205 * * 177 * 227 * 211 NK Brand N45T * * La Crosse Forage LC Cargill * * 185 * * NK Brand N45A * 180 * Cargill 4521Bt 211 * * 183 * 228 * * * 217 * Dekalb DKC OBrien OB Dahlco X Pioneer 36R * * 177 * 228 * * * 213 * * Brown 5969RR Top Farm TFSX Lemke * * * DAY HYBRID TRIAL AVERAGE## 24.5 Jung Renk RK * Spangler Renk RK * * * * 158 Brunner EXP Spangler * * 175 * 221 * 231 * Spangler * Kussmaul K * * 211 Bio Gene BT North-Gro Dairyland DST Kussmaul K Brown Golden Harvest H7773Bt Asgrow RX Ramy R US Seeds USC1029Bt * * 185 * * 210 * Lemke Garst * * * Golden Harvest H OBrien OB Growmark FS * * 233 * * DAY HYBRID TRIAL AVERAGE## 26.2 Golden Harvest H Quality Traders QC Carharts Blue Top CX1056A Dairyland Stealth * * 220 Mallard UC Mallard UC Quality Traders QC Growmark FS Growmark FS Dahlco * Pioneer 36B Dahlco * 187 * * * Trelay Garst 8590IT * * 233 * 188 * * * AgriGold XA * 197 Johnson Seeds North-Gro 6406Y CONTINUED.

17 Table 7. South Central Zone - Late Maturity Grain Trial (page 2 of 2) 101 DAY RELATIVE MATURITY OR LATER, BASED ON COMPANY RATING (FOND DU LAC = FON, GALESVILLE = GAL, HANCOCK = HAN) AVERAGE FON GAL HAN AVERAGE FON GAL HAN Yield Moist Test Lodged P.I. Yield Yield Yield Yield Moist Test Lodged P.I. Yield Yield Yield BRAND HYBRID bu/a % Wt. % # bu/a bu/a bu/a bu/a % Wt. % # bu/a bu/a bu/a Crows C3520B * 175 * 231 * 207 Carharts Blue Top CX1055A US Seeds USE1052RR 207 * * * 238 * Midwest G7494B * 222 * 202 Dairyland Stealth Top Farm TFSX Carharts Blue Top CX1079A Kaltenberg K Dairyland Stealth * 188 * * Pioneer 35Y * * 188 * 233 * 232 * North-Gro Dynagro * * * 249 * Dairyland Stealth * 191 * * 205 * * NK Brand N58D1 216 * * 183 * 226 * 239 * 198 * * * 191 * AgriGold A * 199 Renk RK * 226 Dairyland Stealth 1507Bt * 234 * Carharts Blue Top CX1080A * Lemke SL MEAN LSD(0.10)** # P.I. = Performance Index, evaluates hybrids by combining yield, moisture, and lodged % at a 50(yield) : 35(moisture) : 15(lodged) ratio. ## Average grain moisture of all hybrids in this trial as rated by the Minnesota Relative Maturity Rating System. Ratings are rounded to 5-day increments. * Hybrids which did not perform significantly less than the highest hybrid in the test. Shaded results provide the best estimate of relative hybrid performance.

18 Table 8. North Central Zone - Early Maturity Grain Trial (page 1 of 2) 90 DAY RELATIVE MATURITY OR EARLIER, BASED ON COMPANY RATING (CHIPPEWA FALLS = CHP, MARSHFIELD = MAR, SEYMOUR = SEY, VALDERS = VAL) AVERAGE CHP MAR SEY VAL AVERAGE CHP MAR SEY VAL Yield Moist Test Lodged P.I. Yield Yield Yield Yield Yield Moist Test Lodged P.I. Yield Yield Yield Yield BRAND HYBRID bu/a % Wt. % # bu/a bu/a bu/a bu/a bu/a % Wt. % # bu/a bu/a bu/a bu/a Cargill * Top Farm TFSX * 80 Top Farm TFSX8184RR * Dahlco X * Dairyland Stealth * 160 * Brown * * 170 * * * LG Seeds LG Golden Harvest H * * * Renk RK * * 158 * Trelay * * 103 Lemke Carharts Blue Top CX8500A * 163 * * 155 * Kussmaul K * North-Gro * 68 Mallard UCX * North-Gro * 55 Dekalb DKC LG Seeds LG * * 80 Kaltenberg K * 151 * Dairyland Stealth Dahlco X * Top Farm TFSX * 83 La Crosse Forage LC Kussmaul K * DAY HYBRID TRIAL AVERAGE## 20.3 Renk RK * 150 * LG Seeds LG2400RR 138 * * 158 * * 89 Dahlman D * Jung * * Carharts Blue Top CX290A * 154 * * 145 * Carharts Blue Top CX8900A * * 65 Dairyland Stealth 1089Bt * 180 * Brunner B * * 157 * * 85 Ramy R Spangler * * 140 * 181 * Trelay * Ragt Semences PG * 75 Pioneer 39K Dairyland Stealth Ramy R Carharts Blue Top CX1185A Dahlman D * Jung 6210RRBt * High Cycle 7290Bt 144 * * 162 * * DAY HYBRID TRIAL AVERAGE## 21.2 Dahlco Lemke 2040A Brown 2P * North-Gro * Dahlman * 151 * CONTINUED.