2004 WISCONSIN CORN HYBRID PERFORMANCE TRIALS GRAIN AND SILAGE

Transcription

1 December 2004 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 85 and earlier In 2004, 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 2004 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 Map: Wisconsin Relative Maturity Belts and test sites 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), Rhinelander Silage Southern Zone Arlington and Lancaster South Central Zone Fond du Lac and Galesville North Central Zone Chippewa Falls, Marshfield, Valders Northern Zone Spooner (two sites), Rhinelander 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 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 11 Table 12 Table 13 Table 14 Table 15 Table 16 Table 17

2 GROWING CONDITIONS FOR 2004 Seasonal precipitation and temperature at the trial sites are shown in Table 2. Spring planting conditions were good through early May after which conditions were cooler and wetter than average. The north and eastern areas of Wisconsin had record rainfall during May and early June often delaying planting. Many acres in eastern Wisconsin were not planted until July. Accumulation of growing degree units was slow. Insect and disease pressure was not significant. Plant emergence and stands were above average. Corn development was behind average due to cool growing conditions, but development caught up somewhat during September. A killing frost did not occur until early-october, but in some areas light frost occurred in late August. Both corn silage and grain harvest were delayed due to slow development caused by cool temperatures. Silage and grain yields were quite variable. Yields were above average in southwestern Wisconsin. During the fall harvest season, hybrids generally had good standability and grain moisture was greater than normal. The plots at Fond du Lac were variable due to wet field conditions after planting and wildlife damage. Plots at Rhinelander were not harvested due to high grain moisture (>40%). 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 A corn planter with cone units was used at all locations. Two-row plots were planted at all locations. 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. 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 onerow chopper. 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. PRESENTATION OF DATA Yield results for individual location trials and for multi-location averages are listed in Tables 4 through 17. Within each trial, hybrids are ranked by moisture, averaged over all 2004 trials conducted in that zone. Yield and moisture data for both 2003 and 2004 are provided if the hybrid was entered previously in the 2003 trials. A twoyear average for yield is calculated using location means as replications. A hybrid index in Table 1 lists relative maturity ratings, specialty traits, seed treatments 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 rated by the Minnesota Relative Maturity rating system are shown in each table. Minnesota Relative Maturity ratings are rounded to 5-day increments. The Minnesota Relative Maturity rating system categorizes corn hybrids into relative maturity groups by comparing harvest grain moisture of a hybrid to the moisture of standard hybrids for each group (see Minnesota Relative Maturity Rating of Corn Hybrids, Agriculture Extension Service, University of Minnesota, Agronomy No. 27). In these Wisconsin results hybrids with lower moisture than a particular relative maturity average are likely to be earlier than that relative

3 maturity, while those with higher grain moisture are most likely later in relative maturity. Maturity ratings can be found in Table 1 where company maturity ratings, Minnesota Relative Maturity ratings, and Wisconsin Grain and Silage Relative Maturity (GRM and SRM) rating are listed. The Wisconsin ratings are grain or silage moisture at harvest compared to company maturity ratings. Each hybrid in a trial is rated and averaged over all trials in a zone. 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: P.I. = [(Yield x 0.50) + (Dry matter x 0.35) + (Upright stalks x 0.15)] / 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 (NDFD), 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 total-tract 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 NDFD 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 and NDFD content assuming a 1350 lb. cow consuming a 30% NDF diet. Using National Research Council (NRC, 2000) energy requirements, the intake of energy from corn silage was converted to expected milk per ton. Because the cow s 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. 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

4 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 2004 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 2003 results. Be wary of any hybrids on your list that had a 2003 Performance Index of 100 or lower. Choose two or three of the remaining hybrids that have relatively high Performance Indexes for both 2003 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 2003 or 2004 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 2003 and 2004 over a wide range of locations and climatic conditions. You are taking a tremendous gamble if you make hybrid selection decisions based on 2004 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 Microsoft Excel and Acrobat PDF formats About the authors: Joe Lauer is professor of agronomy and also holds an appointment with University of Wisconsin-Extension, Kent Kohn is senior research specialist in agronomy, and Pat Flannery is program manager in agronomy. This publication is available from your Wisconsin County Extension office or from the Department of Agronomy, 1575 Linden Drive, Madison, WI Phone (608) University of Wisconsin-Extension, Cooperative Extension, in cooperation with the U.S. Department of Agriculture and Wisconsin counties, publishes this information to further the purpose of the May 8 and June 30, 1914 Acts of Congress; and provides equal opportunities and affirmative action in employment and programming. If you need this material in an alternative format, contact Cooperative Extension Publications at (608) or the UWEX Affirmative Action office. This publication is available free from your Wisconsin county Extension office or from the Department of Agronomy, 1575 Linden Dr., Madison, Wisconsin Phone (608) A Wisconsin Hybrid Corn Performance Trials - Grain and Silage.

5 Table 1. Companies and Hybrids included in 2004 trials Brand Company Address City State Zip Access Access Seeds 980 Fox Ridge Road St. Francisville IL Ag+ Seeds Elk Mound Seed Company 308 Railroad Ave Elk Mound WI AgriGold AgriGold Hybrids R.R. 1 Box 203 St. Francisville IL Badgerland Badgerland Seeds N7416 Co Rd I Juneau WI 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 Carharts Blue Top Carhart's Blue Top Seed, Inc. N14743 County Road M Galesville WI Cornelius Cornelius Seed th Ave Bellevue IA Croplan Genetics Croplan Genetics 180 Lynne Trail Oregon WI Crows Crows Hybrids P.O. Box 157 Kentland IN Dahlco Dahlco Seeds th Street SW Cakato MN Dahlman Dahlman Seed Co. LLP th Street Dassell MN Dairyland Dairyland Seed Co, Inc. P.O. Box 958 West Bend WI Dekalb Monsanto Company 800 North Linberg Blvd. St. Louis MO Dynagro UAP Great Lakes 240 South Bridge Street DeWitt MI Foundation Foundation Direct Seeds th Ave N Onalaska WI Garst Garst Seed Company 5366 Lee Lane Coon Valley WI Gold Country Gold Country Seed, Inc Hwy 15 N. P.O. Box 0604 Hutchinson MN Golden Harvest Golden Harvest th Ave. North Cordova IL Great Lakes Great Lakes Hybrids 9915 W. M-21 P.O. Box 637 Ovid MI Growmark Growmark, Inc Towanda Ave Bloomington IL High Cycle by Trelay Trelay Seeds Hwy 80 Livingston WI Hughes Hughes Hybrids 206 North Hughes Rd Woodstock IL 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 P.O. Box 278 Waunakee WI Kruger Kruger Seed Company th Street Box A Dike IA Kussmaul Kussmaul Seed Company 9020 Hwy 18 Mt. Hope WI La Crosse Forage La Crosse Forage and Turf 2541 Commerce Street La Crosse WI Legacy Seeds Legacy Seeds, Inc. 210 Pine Street Waupaca WI Lemke Lemke Seed Farms, Inc North Granville Mequon WI LG Seeds LG Seeds N th Street 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, Inc. 933 Fly Wheel Circle DeForest WI North-Gro North-Gro Seeds, Inc. P.O. Box 859 Cuba City WI O'Brien O'Brien Farms, Inc. 552 Glenway Road Brooklyn WI Pilgrim Seed Elk Mound Seed Company 308 Railroad Ave Elk Mound WI Pioneer Pioneer Hi-Bred Int'l. 99 Navaho Ave Ste 101-A Mankato MN Ragt Semences Ragt Semences Site de Bourran, Ave. St. Pierra BP Rodez Cedex 9 France Renk Renk Seed Company 6800 Wilburn Road Sun Prairie WI Spangler Spangler Seedtech, Inc. 803 West Racine Street Jefferson WI Top Farm Top Farm Hybrids P.O. Box 850 Cakato MN Trelay Trelay Seeds Hwy 80 Livingston WI Vigoro Royster-Clark, Inc 717 Robinson Road SE Washington C.H. OH Univ Wisconsin UW Agronomy 1575 Linden Drive Madison WI Wolf River Valley Wolf River Valley Seeds N2976 Hwy M White Lake WI Wyffels Wyffels Hybrids U.S. Hwy 6 Genesco IL 61254

6 Table 1 (Cont inued). Companies and hybrids included in 2004 trials. A star (*) indicates that the hybrid performed statistically similar to the highest hybrid for yield or performance index (P.I. or MILK2000) in one or more zones. Relative Maturity Seed Brand Hybrid Traits Co. MN GRM SRM Tables Trt *Access A1500RR RR *,6* 7 *Access A1506RR RR *,7 7 Access A1597RR RR *Access A2506RRYGCB Bt,RR *,7 7 *Access A5405YGCB Bt *,7* 7 Access A5410YGCB Bt *Access A5503YGCB Bt *,7 7 Access A8407HX Bt,LL Ag+ Seeds 6387RR RR AgriGold A6205Bt Bt AgriGold A6235Bt Bt *AgriGold A6305Bt Bt *,7* 7 *AgriGold A * 7 *AgriGold A6333Bt Bt *,7* 46 *AgriGold A6395Bt Bt * 7 AgriGold A AgriGold A AgriGold XA5311Bt Bt AgriGold XA5416Bt Bt ,7 7 AgriGold A Badgerland BL Badgerland BL *Bio Gene BG * 54 Bio Gene BG Bio Gene BG Bio Gene BG Brown 3000YGCB Bt Brown 3020YGCB Bt *Brown 4250YGCB Bt * 32 Brown 4688WX waxy Brown 4910RRYGCB Bt,RR *Brown 5636RRYGCB Bt,RR * 47 Brown Brown Brown X48RR2 RR Brunner EXP102Bt Bt Brunner EXP108Bt Bt Brunner EXP *Brunner Exp * 3 Brunner S2055RR RR *Brunner S3403RRBt Bt,RR * 3 *Brunner S3630RR RR * 3 Brunner S3686Bt Bt *Brunner S3704Bt Bt * 3 *Brunner S3792RRBt Bt,RR * 3 *Brunner S * 3 Brunner S4903Bt Bt Brunner S Brunner S *Carharts Blue Top CR1080RB Bt,RR ,7,12*,14 61 *Carharts Blue Top CR1857RB Bt,RR ,10*,15*,17 61 *Carharts Blue Top CR1960RB Bt,RR *,6*,9,13,16 61 *Carharts Blue Top CR840RB Bt,RR ,10*,15 61 Carharts Blue Top CX1057Bt Bt ,7 61 *Carharts Blue Top CX1505Bt Bt *,7 62 *Carharts Blue Top CX1956Bt Bt *,9*,13,16 61 *Carharts Blue Top CX585Bt Bt ,10*,15,17 61 Carharts Blue Top CX8500A *Cornelius C358RRYG Bt,RR * 51 *Cornelius C382YG Bt *,11* 51 Cornelius C *Cornelius C417YG Bt * 51 *Cornelius C590YG Bt *,12 46 Cornelius C635YG Bt ,12 51 Cornelius C676YG Bt ,12 51 *Cornelius C707RRYG Bt,RR ,12* 51 Relative Maturity Seed Brand Hybrid Traits Co. MN GRM SRM Tables Trt Croplan Genetics 238Bt Bt *Croplan Genetics 294Bt Bt * 48 *Croplan Genetics 294RRBt Bt,RR * 48 *Croplan Genetics 314Bt Bt * 15 Croplan Genetics 334Bt Bt ,9 37 Croplan Genetics 354Bt Bt ,9 48 *Croplan Genetics 364Bt Bt ,9*,16 48 Croplan Genetics 401Bt Bt Croplan Genetics 441Bt Bt Croplan Genetics 501Bt Bt *Croplan Genetics 503Bt Bt *,7 48 Croplan Genetics 601Bt Bt Croplan Genetics 613Bt Bt Croplan Genetics 683Bt Bt *Croplan Genetics 691BtLL Bt,LL *,12 15 *Croplan Genetics 693Bt Bt,IMI ,12* 48 Croplan Genetics DS107RR RR Croplan Genetics DS94RR RR Crows 1703B Bt *Crows 2192B Bt *,11*,14 37 Crows 4911B Bt ,14 37 *Crows X1091B Bt * 37 Dahlco 2141RRBt Bt,RR Dahlco 2288RRBt Bt,RR Dahlco 2482Bt Bt ,9 3 Dahlco 2505Bt Bt Dahlco X Dahlco X3750Bt Bt *Dahlco X3920RRBt Bt,RR * 3 *Dahlco X * 3 Dahlco X4051Bt Bt Dahlco X Dahlman D4411Bt,LL Bt,LL *Dahlman D4515Bt Bt * 15 Dahlman D Dahlman D4747Bt Bt *Dahlman D * 49 *Dahlman D4815Bt Bt * 49 Dahlman R4215RR RR Dahlman R4515RR RR Dahlman R4815RR RR *Dairyland DST * 7 *Dairyland DST * 7 Dairyland HiDF3086 silage Dairyland HiDF3300 silage Dairyland HiDF4200 silage ,16 7 Dairyland Stealth ,17 7 Dairyland Stealth *Dairyland Stealth * 7 *Dairyland Stealth *,14 7 Dairyland Stealth 1507Bt Bt ,7,12 7 Dairyland Stealth *Dairyland Stealth * 7 *Dairyland Stealth ,16* 7 Dairyland Stealth ,7,12 7 Dairyland Stealth Dairyland Stealth ,10 7 Dairyland Stealth ,10 7 Dairyland Stealth *Dairyland Stealth 5104 Bt *,7 7 *Dairyland Stealth 5194 Bt * 7 Dairyland Stealth 5497 Bt ,6,9 7 *Dairyland Stealth 5503 Bt * 7 Dairyland Stealth 5692 Bt *Dairyland Stealth 7191 Bt,RR *,10* 7 Dekalb DKC3714(RR2) RR ,15 50 *Dekalb DKC3947(RR) RR *,17 54 *Dekalb DKC *,15 50 *Dekalb DKC4295(RRYGCB) Bt,RR *,16 50

7 Table 1 (Cont inued). Companies and hybrids included in 2004 trials. A star (*) indicates that the hybrid performed statistically similar to the highest hybrid for yield or performance index (P.I. or MILK2000) in one or more zones. Relative Maturity Seed Brand Hybrid Traits Co. MN GRM SRM Tables Trt *Dekalb DKC4442(YGCB) Bt * 50 Dekalb DKC4446(RRYGCB) Bt,RR Dekalb DKC4623(YGCRW) Bt ,6,9,13,16 66 Dekalb DKC4710(RRYGCB) Bt,RR ,16 50 *Dekalb DKC4852(RR2) RR ,9*,16 50 *Dekalb DKC5018(YGCB) Bt *,6 50 *Dekalb DKC5141(RR2YGRW) Bt,RR ,9*,11 54 *Dekalb DKC5247(RR2YGCB) Bt,RR *,7 50 *Dekalb DKC5334(RRYGCB) Bt,RR * 54 *Dekalb DKC5451(YGCB) Bt *,7,14,16* 50 *Dekalb DKC5784(YGCB) Bt *,14,16* 50 *Dekalb DKC5878(YGCB) Bt *,12,14,16* 50 Dekalb DKC6019(RRYGCB) Bt,RR *Dekalb DKC6143(YGCB) Bt ,14* 50 Dekalb DKC6381(RR2YGCB) Bt,RR Dynagro 51K74 RR *Dynagro 53F09 Bt * 19 *Dynagro 53F49 Bt ,9* 59 Dynagro 55F21 Bt Dynagro 55F53 Bt *Dynagro 55P41 Bt,RR * 60 *Dynagro 57F67 Bt * 20 Dynagro CX Dynagro CX Relative Maturity Seed Brand Hybrid Traits Co. MN GRM SRM Tables Trt *Growmark FS *,7* 33 Growmark FS Growmark FS5112ND ND ,14 49 *Growmark FS5264Bt Bt * 46 Growmark FS Growmark FS6312ND ND *Growmark FS6485YGCB Bt ,12* 53 *High Cycle HC7242YGCB Bt * 29 *High Cycle HC7454YGCB Bt ,9* 29 *High Cycle HC7560YGCB Bt * 29 High Cycle HC7601YGCB Bt ,7 29 *High Cycle HC7698RRYGCB Bt,RR *,14 29 *High Cycle HC7748YGCB Bt *,12*,14* 29 High Cycle HC7B306YGCB Bt High Cycle HC7B445YGCB Bt High Cycle HC8B280YGCB Bt *High Cycle HC8B524YGCB Bt * 37 *Hughes 2970 Bt * 51 *Hughes 4133 Bt * 51 *Hughes 4762 Bt * 51 Hughes 5743 Bt Jeske SX Foundation 104X Foundation 8880E *Garst 8530Bt Bt * 10 *Garst 8535YG1 Bt,IMI *,12 10 Garst 8552YG1 Bt Garst 8578IT IMI *Garst 8579RR RR * 10 *Garst 8590IT IMI * 10 *Garst 8775LL LL * 10 Garst 8787YG1 Bt *Garst * 10 *Garst 8880YG1 Bt ,9* 10 Garst 8905RR RR ,17 10 Garst 8922YG1 Bt ,8,10,17 10 *Garst 8986YG1RR Bt,RR *,10* 10 *Garst NE685IT IMI * 10 *Gold Country 9201CBR Bt,RR * 7 *Gold Country 9401CB Bt * 7 Gold Country 9604CB Bt Golden Harvest EX36962Bt Bt *Golden Harvest EX47566Bt Bt * 7 Golden Harvest EX47935Bt Bt Golden Harvest EX48338Bt Bt Golden Harvest EX48378Bt Bt Golden Harvest EX Golden Harvest H6155RR RR Golden Harvest H6485Bt Bt ,17 7 Golden Harvest H6565RR RR *Golden Harvest H6775Bt Bt ,17* 7 *Golden Harvest H7007Bt Bt *,9*,16 7 Golden Harvest H *Golden Harvest H7298RR RR * 7 Golden Harvest H7470Bt Bt ,9 7 *Golden Harvest H7990Bt Bt ,16* 7 Golden Harvest H8249Bt Bt Golden Harvest H8410Bt Bt ,14 7 *Golden Harvest H9006Bt Bt *,12*,14* 7 Golden Harvest H ,12 7 Great Lakes 4297RR,Bt Bt,RR Great Lakes 4623Bt Bt Great Lakes 5961Bt Bt Growmark FS Growmark FS Johnson Seeds ,10 15 *Johnson Seeds ,9* 10 *Johnson Seeds 2194BtRR Bt,RR ,9* 10 Johnson Seeds 2291RR RR Johnson Seeds ,9 15 Johnson Seeds Johnson Seeds Johnson Seeds Johnson Seeds 4651BtRR Bt,RR Johnson Seeds 4881 Bt Johnson Seeds 4888 Bt,RR ,13 45 Johnson Seeds Johnson Seeds Johnson Seeds Jung 6205RRYGCB Bt,RR Jung 6418RRYGCB Bt,RR *Jung 6432YGCB Bt *,9* 35 *Jung 6545YGCB Bt *,7 35 *Jung 6573YGCB Bt *,7 35 *Jung 6710YGCB Bt * 35 Kaltenberg K Kaltenberg K2727Bt Bt ,10 63 Kaltenberg K3735BtLL Bt,LL Kaltenberg K *Kaltenberg K *,10 63 Kaltenberg K4935LLYGCB Bt,LL Kaltenberg K *Kaltenberg K5215Bt Bt *,7 63 Kaltenberg K5244RRBt Bt,RR Kaltenberg K6767Bt Bt Kaltenberg K8110LF Leafy *Kaltenberg K8112LF Leafy * 63 Kruger K Kruger K1006RR RR ,7 7 Kruger K2193RRYGCB Bt,RR Kruger K2410RRYGCB Bt,RR Kruger K5110YGCB Bt ,7 7 Kruger K5210YGCB Bt Kruger K5211YGCB Bt Kruger K5310YGCB Bt *Kruger K5311YGCB Bt * 7 *Kruger K5504YGCB Bt * 7 *Kruger K5512YGCB Bt * 7 Kruger K5594YGCB Bt Kruger K8414HX Bt

8 Table 1 (Cont inued). Companies and hybrids included in 2004 trials. A star (*) indicates that the hybrid performed statistically similar to the highest hybrid for yield or performance index (P.I. or MILK2000) in one or more zones. Relative Maturity Seed Brand Hybrid Traits Co. MN GRM SRM Tables Trt Kruger K8503HX Bt *Kruger K9002YGCB Bt * 7 *Kruger K9111YGCB Bt * 7 *Kruger K9203RRYGCB Bt,RR * 7 Kruger K9212RRYGCB Bt,RR Kruger K9304YGCB Bt Kruger K ,7 7 *Kruger K9306YGCB Bt *,7 7 Kruger K9308RRYGCB Bt,RR Kruger K9310AYGCB Bt Kruger K9310YGCB Bt Kruger K9392RRYGCB Bt,RR Kruger K9392YGCB Bt Kruger K9401YGCB Bt *Kruger K9404YGCB Bt * 7 *Kruger K9407YGCB Bt ,7* 7 Kruger K9410YGCB Bt Kruger K9491RRYGCB Bt,RR Kruger K9496YGCB Bt Kruger K ,7 7 *Kruger K9910YGCB Bt * 7 *Kussmaul K2710Y Bt * 7 *Kussmaul K501Y Bt * 7 *Kussmaul K505Y Bt * 7 Kussmaul K Kussmaul K Kussmaul K Kussmaul K Kussmaul SB5595RR RR Relative Maturity Seed Brand Hybrid Traits Co. MN GRM SRM Tables Trt *Mallard EXP0501 Bt * 61 Mallard EXP0503 Bt Mallard EXP0504 Bt *Midwest G6963B Bt ,9* 37 *Midwest G7221B Bt *,7*,14 37 Midwest G7622B Bt ,14 37 Midwest G7716B Bt ,14 37 *Midwest X1091B Bt * 37 Mycogen 2E633 Bt,LL *Mycogen 2E705 Bt * 37 *Mycogen 2G626 Bt * 37 Mycogen 2J086 RR *Mycogen 2J * 37 *Mycogen 2K541 Bt,RR *,7 37 *Mycogen 2P172 RR * 37 *Mycogen 2R194 Bt,RR * 37 *Mycogen 2R426 Bt ,9* 37 *Mycogen 2R570 Bt,LL *,7 37 *Mycogen 2T336 Bt,RR * 37 *Mycogen 4521Bt Bt * 15 *Mycogen F227 BMR * 37 *Mycogen F2F581 BMR * 37 *Mycogen F2F797 BMR * 37 *Mycogen F407 BMR * 37 *Mycogen F697 BMR * 37 Mycogen TMF2M405 Bt,LL Mycogen X24334 RR ,10 25 Mycogen X25404 LL LG Seeds LG2407Bt Bt LG Seeds LG2463Bt Bt LG Seeds LG2489Bt Bt ,13 64 LG Seeds LG LG Seeds LG2526SP SP *LG Seeds LG * 64 *LG Seeds LG2540Bt Bt * 64 *LG Seeds LG2633Bt Bt * 64 La Crosse Forage LC4155RR RR La Crosse Forage LC La Crosse Forage LC *La Crosse Forage LC * 11 La Crosse Forage LC La Crosse Forage LC *La Crosse Forage LC ,9*,16 11 La Crosse Forage LC7423RR RR *La Crosse Forage LC *,6* 11 La Crosse Forage LC *La Crosse Forage LC7965Bt Bt ,16* 11 Legacy Seeds L2117 Bt,RR Legacy Seeds L *Legacy Seeds L2797 Bt * 55 *Legacy Seeds L2927 Bt,RR ,9* 3 *Legacy Seeds L3077 RR ,9* 3 Legacy Seeds L3187 Bt Legacy Seeds L3297 Bt *Legacy Seeds L4199 Bt,RR ,13* 3 Legacy Seeds L5199 Bt ,14 7 Legacy Seeds L6217 Bt *Lemke 3081Bt Bt * 61 *Lemke 3083RRBt Bt,RR * 61 *Lemke 4011Bt Bt ,9* 61 Lemke 4021Bt Bt ,9 61 *Lemke 5015Bt Bt * 61 *Lemke 5051Bt Bt * 61 Lemke 6031Bt Bt Mallard 3411CB Bt Mallard 3612CB Bt *Mallard BT2430 Bt * 7 *NK Brand N22-T8 Bt,LL * 37 *NK Brand N2555BT Bt,LL *,17 38 *NK Brand N25-J7 Bt,LL * 39 *NK Brand N29-A2 Bt,LL ,10* 37 NK Brand N ,9,16,17 37 *NK Brand N3030BT Bt,LL ,10,16,17* 37 NK Brand N32-L9 Bt,LL *NK Brand N33-H *,17* 37 NK Brand N35-B8 Bt,LL NK Brand N45-A6 Bt,LL *NK Brand N48-V8 Bt,LL *,14* 38 *NK Brand N49-E ,16* 38 *NK Brand N50-P5 Bt,LL *,7* 37 NK Brand N58-D1 Bt,LL NK Brand N60-B6 Bt,LL NK Brand N65-Y3 Bt,LL NK Brand N75-K NK Brand NX5141 Bt,LL NK Brand NX5553 Bt,LL *NK Brand NX6822 Bt,LL * 38 *North Gro 1605YGCBRR Bt,RR * 3 North Gro 4187YGCB Bt *North Gro 4767YGCB Bt * 3 North Gro 5642YGCB Bt North Gro 5939YGRW Bt North Gro 6999YGCB Bt *OBrien OB * 46 *OBrien OB * 66 *OBrien OB1113Bt Bt *,12* 31 OBrien OB805RR RR OBrien OB OBrien OB944Bt Bt Pilgrim Seed Pilgrim Seed Plus Pilgrim Seed Plus *Pioneer 32R43 Bt * 65 *Pioneer 33R78 Bt *,14 65 *Pioneer 34H32 Bt ,7*,12,14 65 *Pioneer 34M93 Bt,LL * 16

9 Table 1 (Cont inued). Companies and hybrids included in 2004 trials. A star (*) indicates that the hybrid performed statistically similar to the highest hybrid for yield or performance index (P.I. or MILK2000) in one or more zones. Relative Maturity Seed Brand Hybrid Traits Co. MN GRM SRM Tables Trt *Pioneer 34M95 Bt ,16* 16 *Pioneer 34N42 Bt,LL *,12*,14 16 *Pioneer 34N44 Bt *,14,16* 44 *Pioneer 35D * 65 Pioneer 35R Pioneer 35R58 Bt ,16 54 Pioneer 35Y55 Bt ,7 65 *Pioneer 35Y67 Bt,LL *,7*,16* 16 Pioneer 36B *Pioneer 36B11 Bt,RR *,7 16 *Pioneer 37A *,17* 16 *Pioneer 37D02 RR * 16 *Pioneer 37F16 Bt * 65 *Pioneer 37R70 Bt,RR * 16 *Pioneer 37R71 Bt * 65 *Pioneer 38B * 65 *Pioneer 38H *,9*,17* 16 *Pioneer 38P04 Bt,LL *,10* 16 *Pioneer 38W22 Bt,LL *,10*,17 16 *Pioneer 39D82 Bt * 16 *Pioneer 39F28 Bt,LL * 16 Relative Maturity Seed Brand Hybrid Traits Co. MN GRM SRM Tables Trt Spangler 154G Bt Spangler 2777RG Bt,RR *Spangler 324G Bt ,9* 46 Spangler 331G Bt Spangler 353G Bt Spangler 5003G Bt ,7 46 *Spangler 5300G Bt * 46 Spangler 5775G Bt Spangler 674G Bt *Spangler 7558G Bt *,12* 46 Top Farm Top Farm Top Farm 7496Bt Bt Top Farm 9305RY Bt,RR Trelay Trelay Trelay ,14 29 Trelay Trelay SP RAGT Semences MX152 Bt RAGT Semences MX155 Bt RAGT Semences MX RAGT Semences MX *RAGT Semences MX * 66 RAGT Semences MX *RAGT Semences MX * 66 RAGT Semences NEXXOS RAGT Semences MX Renk RK Renk RK ,10,17 12 Renk RK288YGCB Bt ,10,17 12 *Renk RK438YGCB Bt *,10,17 12 *Renk RK452LLYGCB Bt,LL *,9,16*,17 40 Renk RK478RRYGCB Bt,RR *Renk RK488YGCB Bt ,9*,17* 12 Renk RK *Renk RK632YGCB Bt ,9,16* 12 *Renk RK636RRYGCB Bt,RR *,7* 12 Renk RK652LLYGCB Bt,LL ,7 40 Renk RK ,12,14 12 *Renk RK700YGCB Bt *,7 12 *Renk RK772YGCB Bt *,7* 12 *Renk RK789YGCB Bt ,12*,14 12 *Renk RK877YGCB Bt ,12* 12 *Univ Wisconsin EX * 1 Univ Wisconsin EX Univ Wisconsin EX *Univ Wisconsin EX * 1 *Univ Wisconsin EX * 1 *Univ Wisconsin EX * 1 Univ Wisconsin EX Vigoro V43Y31 Bt Vigoro V46Y41 Bt *Vigoro V * 37 *Wolf River Valley 2490Bt Bt * 10 Wolf River Valley 2590L Wyffels W *Wyffels W2713 Bt * 52 *Wyffels W3813 Bt * 52 Wyffels W4823YGCB Bt Wyffels W4824YGRW Bt Wyffels W5223 Bt Wyffels W Wyffels W5483 Bt *Wyffels W * 52 Wyffels W6984YGRW Bt List of Seed treatments used on corn hybrids in the UW Corn Performance trials. Seed Trt Common Name 1 Captan 3 MaximXL 7 Poncho Actellic+Allegience+Captan 11 Actellic+ApronFL+Captan 12 Actellic+ApronFL+Maxim 14 Actellic+ApronXL+Maxim 15 Actellic+MaximXL 16 ApronXL+Maxim+Poncho ApronXL+Lorsban+MaximXL+Poncho ApronFL+Maxim+Poncho ApronFL+Maxim+Poncho250+Trilex 21 ApronFL+Maxim+Trilex 23 Allegiance+Captan 25 ApronFL+Captan 26 Captan+Lorsban 27 Actellic+ApronFL Seed Trt Common Name 29 Actellic+Allegiance+Captan+Poncho Actellic+Allegiance+Captan+Gaucho 32 Allegiance+Captan+Cruiser+Lorsban 33 Allegiance+Captan+Poncho Allegiance+Captan+Lorsban+Poncho ApronXL+Cruiser+Dynasty+MaximXL 38 Actellic+ApronXL+Cruiser+Dynasty+ MaximXL 39 ApronXL+Cruiser+Dynasty+Gaucho+ MaximXL 40 Actellic+ApronFL+Cruiser+MaximXL 43 Cruiser+MaximXL 44 FDMM+MaximXL 45 Actellic+Gaucho+MaximXL 46 Lorsban+MaximXL+Poncho Lorsban+MaximXL+Cruiser 48 Actellic+Cruiser+MaximXL Seed Trt Common Name 49 Actellic+MaximXL+Poncho ApronXL+MaximXL+Poncho Lorsban+MaximXL 52 Actellic+ApronXL+Maxim+Poncho MaximXL+Poncho ApronXL+Maxim 55 ApronXL+Maxim+Poncho Cruiser+Maxim 57 Maxim+Poncho Poncho250+Trilex 60 Actellic+MaximXL+Poncho1250+Trilex 61 ApronFL+Captan+Lorsban 62 ApronFL+Captan+Lorsban+Poncho Actellic+ApronFL+Captan+Poncho ApronXL+Lorsban+Maxim+Poncho ApronXL+MaximXL 66 Unknown

10 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 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 Rhinelander* Temperature Precipitation Irrigation Seymour Temperature (Green Bay) Precipitation Spooner* Temperature Precipitation Irrigation Valders Temperature (Manitowoc) Precipitation *Irrigation applied at Hancock, Rhinelander, and Spooner - Irrigated Sand Trials.

11 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 G:20-Oct G: Chisel preplant Dual II 2.0 pt/a None J. Quimby Silt Loam S: 21-Sept S: Field Cultivator planting Hornet 3.5 oz/a Soil Finisher cultivate Chippewa Falls J. Clark Sattre Soybean Apr G: 25-Oct G: Field Cultivator preplant Harness 1.6 pt/a None Silt Loam S: 28-Sept S: planting Hornet 3.0 oz/a cultivate Fond du Lac K. Boelk Virgil G: Soybean 30 3-May G: 27-Oct G: Moldboard Plow preplant Cinch ATZ Lite 2.25 pt./a M. Rankin Silt Loam S:Corn S: 24-Sept S: Field Cultivator planting Cinch 0.67 pt./a S: Force Hornet 3.0 oz/a 4.4 lbs/a cultivate Galesville K. Congdon Downs Soybean Apr G: 25-Oct G: V-ripper preplant Dual II 2.25 pt/a None J. Zander Silt Loam S: 22-Sept S: Field Cultivator planting Callisto 3.0 oz/a cultivate Hancock J. Breuer Plainfield Soybean Apr G: 13-Oct G: Moldboard Plow planting Aatrex 4L 0.75 lb/a None Irrigated C. Kostichka Sand Disk post Lasso 2.0 qt/a Janesville J. Stute Plano Soybean Apr G: 21-Oct G: Chisel Plow preplant Dual II 1.8 pt/a None Silt Loam Field Cultivator planting Hornet 4.0 oz/a cultivate Lancaster T. Wood Fayette G: Soybean Apr G: 14-Oct G: Soil Finisher G: preplant Aatrex 4L 1.0 qt/a None Silt Loam planting Harness 1.0 qt/a Northstar 2.5 oz/a cultivate S: Corn Apr S: 17-Sept S: Fall Disk S: preplant Aatrex 4L 1.0 qt/a Force Soil Finisher planting Harness 1.0 qt/a 4.4 lbs/a cultivate Marshfield M. Bertram Withee Soybean Apr G: 3-Nov G: Chisel Plow planting Lumax 2.25qt/A T. Drendel Silt Loam S: 29-Sept S: Field Cultivator (2x) post cultivate Rhinelander B. Bowen Vilas Potato May S: 22-Sept S: Chisel Plow planting Harness Extra 1.75 qt/a S. Woodford Loamy Sand Disk post Seymour R. Vanden Heuvel Clay Loam Corn 30 2-May G: 24-Oct G: Chisel Plow planting Accent 0.67 oz/a Force Z. Miller Soil Finisher 9000 gal/a Manure post Atrazine 0.5 lb/a 4.4 lbs/a Callisto 3.0 oz/a cultivate Spooner P. Holman Mahtomedi Alfalfa 30 5-May G: 26-Sept G: Disk s planting Dual II Mag 1.0 pt/a None Dryland Y. Berger Loamy Sand post Hornet 4.0 oz/a Spooner P. Holman Cress Alfalfa 30 4-May G: 26-Oct G: Moldboard Plow s planting Dual II Mag 1.0 pt/a None Irrigated Y. Berger Sandy Loam S: 4-Oct S: Disk post Hornet 4.0 oz/a Accent 0.67 oz/a Spooner P. Holman Antigo Soybean 30 6-May G: 4-Nov G: Moldboard Plow s planting Dual II Mag 1.0 pt/a None Silt Loam Y. Berger Silt Loam S: 6-Oct S: Disk post Hornet 4.0 oz/a Valders T. & B. Maney Kewaunee Corn 30 4-May G: 27-Oct G: Chisel Plow planting Dual II Mag 1.0 pt/a Force Clay Loam S: 5-Oct S: Field Cultivator gal/a Manure preplant Accent Gold 2.5 oz/a 4.4 lbs/a Banvel 2.0 oz/a cultivate Note: G=Grain, S=Silage

12 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) Test AVERAGE ARL JAN LAN AVERAGE ARL JAN LAN AVERAGE Yield P.I. Moist Test Lodged Yield Yield Yield Yield P.I. Yield Yield Yield Yield BRAND HYBRID Genes bu/a # % Wt. % bu/a bu/a bu/a bu/a # bu/a bu/a bu/a bu/a Dekalb DKC4623(YGCRW) N Dairyland Stealth 5497 G Access A1500RR J 234 * 103 * * 233 Dekalb DKC5018(YGCB) G * * Dekalb DKC5247(RR2YGCB) GH * * 239 * 238 Dekalb DKC5141(RR2YGRW) NJ Kruger K9306YGCB G * * 103 * 212 * * 214 * Croplan Genetics 401Bt G * 202 * Renk RK772YGCB G * * 201 * * 207 Wyffels W2713 G * * DAY HYBRID TRIAL AVERAGE## 20.0 La Crosse Forage LC * * 236 Dynagro 55F53 G Wyffels W Brown 4910RRYGCB GJ Cornelius C358RRYG GJ * Midwest G7221B G * * * * 212 * La Crosse Forage LC * * 238 Dekalb DKC5451(YGCB) G * * Croplan Genetics 501Bt G Hughes 4762 G 235 * 102 * * 243 * * 102 * 195 * 215 * * Jung 6573YGCB G * * 237 Renk RK636RRYGCB GJ * * * 204 * * 213 * NK Brand N50-P5 K * * * 103 * 194 * * 213 * OBrien OB * 102 * * 248 * 242 Renk RK652LLYGCB K Dekalb DKC5334(RRYGCB) GH * * * Carharts Blue Top CR1960RB GJ 238 * 102 * * 241 * 251 * Mycogen 2K541 GJ * * Kussmaul K Cornelius C Mycogen 2R570 LD 243 * 103 * * 256 * Brown 5636RRYGCB GJ * * Growmark FS * Spangler 5300G G 237 * 102 * * * Growmark FS * 102 * * 240 * 256 * 195 * 102 * 204 * * 217 * Golden Harvest H8249Bt G Dairyland DST * 102 * * 238 * 258 * 105-DAY HYBRID TRIAL AVERAGE## 22.5 Dairyland Stealth 5104 G * * 241 * * 104 * 199 * 206 * 203 * 216 * Kruger K Kaltenberg K5215Bt G * * 236 Wyffels W3813 G 240 * 102 * * 246 * * * AgriGold XA5311Bt G Mycogen 2G626 G 234 * 101 * * 245 * 237 CONTINUED.

13 Table 4 (continued). 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) Test AVERAGE ARL JAN LAN AVERAGE ARL JAN LAN AVERAGE Yield P.I. Moist Test Lodged Yield Yield Yield Yield P.I. Yield Yield Yield Yield BRAND HYBRID Genes bu/a # % Wt. % bu/a bu/a bu/a bu/a # bu/a bu/a bu/a bu/a Access A5405YGCB G 238 * 102 * * 244 * 251 * Kussmaul K505Y G 242 * 103 * * 240 * 257 * Pioneer 35R58 G Jung 6545YGCB G * * 238 Renk RK700YGCB G 233 * 100 * * * 102 * 204 * 209 * * Dairyland Stealth 5503 G 239 * 102 * * * High Cycle HC7601YGCB G LG Seeds LG * 102 * * 252 * * 102 * 201 * * 218 * Access A5503YGCB G * * 238 Dynagro 55F21 G Hughes 4133 G 233 * 100 * Garst NE685IT C 239 * 102 * * 244 * 252 * North Gro 5939YGRW N Pioneer 36B11 GJ * * AgriGold A6305Bt G 241 * 102 * * 265 * * * Carharts Blue Top CX1057Bt G * * AgriGold A * Access A1506RR J 241 * 102 * * 256 * 243 Croplan Genetics 503Bt G * * 251 * 196 * 103 * * 214 * Cornelius C382YG G 245 * 103 * * 251 * 265 * Spangler 5003G G * * 105 * 207 * 216 * 195 * 216 * Carharts Blue Top CX1505Bt G 236 * 101 * * 249 Brown AgriGold XA5416Bt G Access A2506RRYGCB GJ 244 * 103 * * 248 * 263 * NK Brand NX5553 K * AgriGold A6333Bt G 239 * 101 * * 247 * 248 Trelay * * 104 * 207 * 220 * 182 * 216 * Cornelius C417YG G 237 * 100 * * 238 * 254 * * * MEAN LSD(0.10)** Code = Trait(Gene): B=bmr(bm3); C=IMI(IT); D=LL(T25); F,G,K,L=Bt-ECB(Bt176, Mon810, Bt11, TC1507); H,J=RR(MonGA21, Nk603); M=Leafy; N=Bt-CRW(Mon863); X=Unknown; respectively. # 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 that performed statistically similar to the highest hybrid in the trial. Shaded results provide the best estimate of relative hybrid performance.