PERFORMANCE OF COMMERCIAL DENT CORN HYBRIDS IN INDIANA, 2001

Transcription

1 November 2001 Bulletin No. B-806 PERFORMANCE OF COMMERCIAL DENT CORN HYBRIDS IN INDIANA, 2001 Department of Agronomy Agricultural Research Programs Purdue University West Lafayette, Indiana

2 TABLE OF CONTENTS Introduction and Experimental Methods... 1 Interpretation of Results and Description of Trials... 2 Location Information... 3 Location of Performance Trials Rainfall at Test Locations... 5 Performance Data Table 1. Northern Sand...6 Single Site Tables: Wanatah, DeMotte Table 2. Northern Early...8 Single Site Tables: Wanatah, Wabash, Milford Table 3. Northern Mid...10 Single Site Tables: Wanatah, Wabash, Milford Table 4. Northern Late...13 Single Site Tables: Wanatah, Wabash, Milford Table 5. Central Early...14 Single Site Tables: West Lafayette, Cloverdale, Muncie, Tipton, Table 6. Central Mid...17 Single Site Tables: Cloverdale, Muncie, Tipton, West Lafayette Table 7. Central Late...21 Single Site Tables: Cloverdale, Muncie, Tipton, West Lafayette Table 8. Southern Early...26 Single Site Tables: Butlerville, Evansville, Shelburn, Washington Table 9. Southern Late...30 Single Site Tables: Butlerville, Evansville, Shelburn, Washington Sources of Seed for Performance Trials...34 Brand-Hybrid Index...35 ACKNOWLEDGMENTS Sincere appreciation to Tom Boyd, Paul DeVries, James Haynes, Ed Ripberger, Tom Ripberger Joe Russell, Stewart Jackson, Fred Peterson, Sam Ellison, Mike McKillip, Chris and Rob Mann for their assistance with establishing and carrying out the performance tests on their private farms. Appreciation also to Jim Beaty, Don Biehle, Jon Leuck, and their supporting staff, at the regional Purdue Agricultural Research Centers, for all the extra effort in making the performance testing program successful. Special thanks to Andy Montgomery of AgriGold & Kevin Cavanaugh of Beck s for providing border and buffer seed.

3 Performance of Commercial Dent Corn Hybrids in Indiana, 2001 Bulletin No. B-806 Philip DeVillez and William D. Foster. Department of Agronomy Introduction This bulletin summarizes results of the 2001 performance trials of commercial dent corn hybrids being sold in Indiana. The participating seed companies selected the hybrids for testing and mailed samples of seed taken from commercial seed lots to Purdue University for evaluation. The corn performance program underwent some major changes in The most notable, a new testing structure based on relative hybrid maturity. The state is split into three regions, North, Central and South. In the north and central regions early, mid and late tests were established based on appropriate maturities. The tests established in the south were early and late. Other program changes included two new testing sites and four row plots. It is best to use multi site, multi year data to determine how a hybrid responds over a variety of growing environments. This year however, since the test structure has changed, only single year data is available. This information, copyright protected by the Purdue Research Foundation, is presented under authority granted the Indiana Agricultural Research Programs to conduct performance trials, including interpretation of data to the public, and does not imply endorsement or recommendation by Purdue University. Performance information may be used in the following ways: 1) Permission is granted to reproduce the tables in their entirety provided the source is referenced and the data are not manipulated or reinterpreted. A conspicuous disclaimer which states endorsement or recommendation by Purdue University is not implied must accompany any information reproduced. 2) Advertising statements by an individual company about the performance of its entries can be made as long as they are accurate statements about the data as published, with no reference to other companies hybrids. A statement similar to See the official Purdue University bulletin Performance of Commercial Dent Corn Hybrids in Indiana, 2001, for details. must be included in the ad. Additional copies of this publication are available to Indiana residents from their local Purdue Cooperative Extension Offices. This document can be accessed electronically by the following method. 1. World Wide Web (Netscape, Mosaic, etc.): by pointing to the URL address: Experimental Methods Predominant soil types or production levels commonly found in northern, central, and southern Indiana were represented by four locations in each region. At each location, plots consisted of four rows and were, replicated three times within a randomized complete block design. All data was collected on only the middle two rows of the plot.participating companies supplied relative maturity data reported in the index as days from emergence to kernel black layer. The plots were planted from pre-counted packets of seed using a plot research air planter, and harvested with a self-propelled harvester without gleaning. Stand counts for each individual plot were recorded during the month of June. The percent stand is determined based on the number of kernels planted and the number of plants emerged, and therefore, indicates only germination and emergence losses. Average harvest moisture is presented for each hybrid, and yield data are calculated in bushels of shelled grain per acre, adjusted to 15.5% moisture. No yield adjustment was made for stand except for continuous skips, which are determined to be of mechanical origin. Lodged plants (stalks broken below the ear) were counted just prior to harvest. Test weight data were adjusted to 15.5% moisture. Each farm cooperator prepared the seedbed using conventional tillage practices and applied herbicides at labeled rates. Fertilizer application was based upon the management program of each cooperator and the desired plant population of each test. The planting populations were 30,000 ppa, for the north and central tests 28,000 ppa for the south and 24,800 ppa for the sand test. 1

4 Presentation and Interpretation of Results The performance data for each test within a region is reported in a table. Hybrids in each table are listed by yield in descending order. Comparisons can be made only between hybrids within a table. Comparing two hybrids from different tables (i.e. different environments and/or production levels) would likely lead to an erroneous conclusion. With the use of statistical analysis, it is possible to determine whether a difference in performance between two hybrids is real or due to chance, at a chosen level of confidence. The least significant difference (LSD) listed at the bottom of each table for each column of data should be used to distinguish such differences. This bulletin presents data with an LSD of 10%. If the difference between two hybrids were equal to or greater than the LSD, the difference would be attributable to hybrid differences and not random chance in 18 out of 20 (90%) instances when the two hybrids are evaluated under conditions like those of the test. A difference which is less than the LSD is likely due to chance, rather than true hybrid performance. When no significant difference for a given parameter is found among hybrids, ns (nonsignificant) replaces an LSD value. While much care is exercised to keep experimental error to a minimum, variation in data among any given hybrid s replications can and does occur. For example, very rarely is a hybrid s yield exactly the same for all replicates, although relatively small amounts of variation are certainly considered normal. A relatively large amount of variation for many of the hybrids in a test can render the data useless for determining real, instead of chance, differences in performance. Plot replication is carried out in order to sample the uncontrollable variation within a test site, which has been chosen for its uniformity of soil type and slope. Other factors which may introduce error, but which can be reasonably controlled, include uniformity of tillage, herbicide and fertilizer application, timeliness of planting and harvesting, and the condition of equipment used to perform the research. Ideally, all hybrids within a test should have an equal chance to perform. Relative performance of hybrids changes with different growing conditions from year to year. Therefore, caution is necessary in using data from one year as a guide. Future hybrid performance can best be estimated by observing past performance in several environments over at least two or three years if possible. Description of Performance Trials Northern Sand Trial: No limit on relative maturity of hybrids. Grown at three sites. Northern Early Trial: Hybrids with a relative maturity of 106 days or less. Grown at four sites. Northern Mid Trial: Hybrids with a relative maturity between 107 and 110 days. Grown at four sites. Northern Late Trial: Hybrids with a relative maturity of 113 days or less. Grown at four sites. Central Early Trial: Hybrids with a relative maturity of 108 days or less. Grown at four sites. Central Mid Trial: Hybrids with a relative maturity between 109 and 111 days. Grown at four sites. Central Late Trial: Hybrids with a relative maturity of 115 days or less. Grown at four sites. Southern Early Trial: Hybrids with a relative maturity of 112 days or less. Grown at four sites. Southern Late Trial: Hybrids with a relative maturity of 113 days or more. Grown at four sites. The exact sites for each trial are marked on an Indiana map on page 4 in this bulletin. 2

5 2001 Location Information Date of Date of Fertilization Location Soil Type Planting Harvest N P K Pinney Sebewa loam 5/3/01 10/20/01 200lbs/a none 156lbs/a Tracy sandy loam 5/3/01 10/19/01 200lbs/a none none Auburn Sebewa loam 5/3/00 discard 180lbs/a 50lbs/a 140lbs/a Boyer sandy Loam 5/3/00 discard 180lbs/a 50lbs/a 140lbs/a DeMotte Craigmile sandy loam 4/30/01 10/9/01 140lbs/a 30lbs/a 100lbs/a Wabash Fincastle silt loam 5/2/01 10/10/01 169lbs/a 35lbs/a 28lbs/a Milford Crosier loam 5/2/01 11/1/01 142lbs/a 33lbs/a none W. Lafayette Chalmers silty clay loam 4/19/01 9/28/01 155lbs/a none 450lbs/a Tipton Del Ray silty clay loam 5/1/01 10/22/01 199lbs/a 45lbs/a 183lbs/a Muncie Pawamo silty clay loam 5/1/01 10/3/01 185lbs/a 92lbs/a 120lbs/a Cloverdale Iva silt loam 4/27/01 10/1/01 152lbs/a 46lbs/a 120lbs/a Evansville Evansville silty loam 4/25/01 9/27/01 168lbs/a 46lbs/a 120lbs/a Washington Iva silt loam 4/24/01 9/26/01 200lbs/a 46lbs/a 120lbs/a Butlerville Avonburg silt loam 4/25/01 10/2/01 155lbs/a 73lbs/a 149lbs/a Shelburn Iva silt loam 4/24/01 9/24/01 217lbs/a 69lbs/a 100lbs/a 3

6 2001 Corn Performance Locations Wanatah Northern Early, Mid, Late & Sand Auburn Northern Early, Mid, Late & Sand DeMotte Northern Sand Milford Northern Early, Mid & Late West Lafayette Central Early, Mid & Late Wabash Northern Early, Mid & Late Muncie Central Early, Mid & Late Cloverdale Central Early, Mid & Late Tipton Central Early, Mid & Late Shelburn Southern Early & Late Butlerville Southern Early & Late Washington Southern Early & Late Evansville Southern Early &Late 4

7 2001 Rainfall Summary Rainfall (N)* April May June July August September Wanatah 2.68 (3.81) 4.15 (3.64) 3.99 (3.95) 4.51 (4.20) 5.92 (3.37) 3.19 (3.90) Auburn 2.00 (3.38) 3.50 (3.44) 2.25 (3.59) 0.00 (3.45) 0.00 (3.37) 0.00 (2.67) Wabash 2.74 (3.64) 5.40 (4.01) 5.41 (3.78) 5.87 (4.15) 1.24 (3.97) 2.39 (3.18) Milford 3.65 (3.14) 2.80 (3.46) 3.40 (4.01) 5.35 (3.62) 7.00 (3.49) 2.90 (3.35) DeMotte 2.45 (3.78) 3.40 (3.46) 3.49 (4.07) 3.52 (3.92) 5.23 (3.62) 2.12 (3.67) W. Lafayette 2.77 (3.71) 2.92 (3.89) 2.28 (3.71) 4.99 (3.95) 5.03 (3.84) 1.79 (3.01) Tipton 3.33 (3.74) 3.51 (4.91) 3.99 (4.06) 4.20 (5.14) 3.10 (3.54) 3.66 (3.63) Muncie 2.55 (3.66) 4.90 (3.74) 2.90 (3.71) 5.92 (3.91) 4.59 (3.41) 2.85 (2.86) Cloverdale 2.61 (3.89) 3,90 (4.47) 4.21 (3.58) 7.35 (4.90) 5.15 (3.56) 4.84 (3.36) Shelburn 1.90 (3.89) 4.27 (4.47) 4.91 (3.58) 5.65 (4.90) 3.63 (3.56) 2.71 (3.36) Butlerville 3.03 (4.02) 4.85 (4.46) 5.08 (3.55) 5.62 (4.62) 5.28 (3.69) 5.42 (2.63) Washington 1.88 (3.76) 4.31 (5.08) 1.75 (3.55) 3.38 (5.01) 1.91 (3.86) 1.88 (2.49) Evansville 0.6 (4.02) 2.60 (4.75) 3.60 (3.49) 4.70 (4.04) 4.10 (3.11) 3.50 (2.97) ( ) Denotes 30 year average. 5

8 Table Northern Sand Average of 2 Sites. Brand bu/a Moist% lbs/bu % % DEKALB DKC * Pioneer 34B * Golden Harvest H * Pioneer 34M * Pioneer 35P * Pioneer 34G * Beck * Battleground * Golden Harvest H * Campbell Seed * Golden Harvest H * AgriGold A * DEKALB DK * Pioneer 34M AgriGold XA Rupp XR Garst 8664IT Battleground Beck 5283Bt DEKALB DK ASGROW RX Garst 8362IT Beck Campbell Seed Pioneer 33G Pioneer 33Y Pioneer 36B Garst 8590IT Pioneer 36B DEKALB DKC Corn Belt C Parker Parker 59B AgriGold A Purple Ribbon DEKALB DK Corn Belt C Battleground Garst N Beck Garst N9523IT Great Lakes Hybrids Battleground AgriGold A Parker 58B LG Seeds LG LG Seeds LG Grand Mean LSD (10%) Copyright 2001 Purdue Research Foundation 6 Table 1A Northern Sand Site: Wanatah, IN. Brand bu/a Moist% lbs/bu % % Pioneer 34B * Golden Harvest H * Pioneer 34M * Pioneer 35P * DEKALB DKC * Battleground * Beck 5283Bt1 190 * Campbell Seed * Campbell Seed * AgriGold A * Golden Harvest H * Pioneer 34G * Beck * Pioneer 36B * DEKALB DK * Rupp XR * Golden Harvest H * Pioneer 36B * LG Seeds LG Garst 8664IT Corn Belt C Garst 8590IT Battleground Pioneer 33G Pioneer 34M ASGROW RX AgriGold XA Great Lakes Hybrids DEKALB DKC Battleground Garst N9523IT Pioneer 33Y DEKALB DK Beck Parker DEKALB DK Corn Belt C AgriGold A Parker 59B AgriGold A LG Seeds LG Garst N Garst 8362IT Beck Battleground Parker 58B Purple Ribbon Grand Mean LSD (10%) Copyright 2001 Purdue Research Foundation

9 Table 1B Northern Sand Site: DeMotte, IN. Brand bu/a Moist% lbs/bu % % DEKALB DKC * Pioneer 34B * Beck * Pioneer 34G * Garst 8362IT 161 * Golden Harvest H Purple Ribbon AgriGold XA Pioneer 34M Pioneer 34M DEKALB DK Golden Harvest H Pioneer 35P Beck Golden Harvest H DEKALB DK Battleground ASGROW RX Garst 8664IT AgriGold A Rupp XR Pioneer 33Y Campbell Seed Beck Pioneer 33G Battleground Parker 59B Battleground AgriGold A Garst N DEKALB DKC Parker Garst 8590IT Corn Belt C DEKALB DK Pioneer 36B Corn Belt C Beck 5283Bt Pioneer 36B Campbell Seed Parker 58B Battleground AgriGold A Garst N9523IT Great Lakes Hybrids LG Seeds LG LG Seeds LG Grand Mean LSD (10%) Copyright 2001 Purdue Research Foundation 7

10 Table Northern Early Average of 3 Sites. Brand bu/a Moist% lbs/bu % % ASGROW RX601RRYG 217 * Pioneer 35P * DEKALB DKC * LG Seeds LG * Campbell Seed * Battleground DEKALB DKC Pioneer 35P Rupp XR Specialty Hybrids AgriGold A Pioneer 36B Adler AgriGold A Trisler T Great Lakes Hybrids Beck icorn.com i106.b Corn Belt C AgriGold A Golden Harvest H AgriGold XA Dairyland Stealth Garst 8590IT Dairyland Stealth Specialty Hybrids Great Lakes Hybrids Campbell Seed Pfister Pioneer 36B Corn Belt C Battleground icorn.com i106.a McKillip Seed Parker Golden Harvest H Battleground DEKALB DKC Stine icorn.com i106.x Pfister Parker Grand Mean LSD (10%) Copyright 2001 Purdue Research Foundation Table 2A Northern Early Site: Wanatah, IN. Brand bu/a Moist% lbs/bu % % ASGROW RX601RRYG 229 * DEKALB DKC * DEKALB DKC * Pioneer 35P * Rupp XR * Garst 8590IT 214 * Campbell Seed Campbell Seed Adler LG Seeds LG AgriGold XA Pioneer 35P icorn.com i106.b Corn Belt C Specialty Hybrids Pfister AgriGold A Great Lakes Hybrids Dairyland Stealth AgriGold A Battleground Corn Belt C Great Lakes Hybrids AgriGold XA Golden Harvest H Trisler T Pioneer 36B Dairyland Stealth Beck Specialty Hybrids icorn.com i106.a Battleground Parker McKillip Seed Battleground Pioneer 36B Stine Golden Harvest H DEKALB DKC Parker Pfister icorn.com i106.x Grand Mean LSD (10%) Copyright 2001 Purdue Research Foundation 8

11 Table 2B Northern Early Site: Wabash, IN. ASGROW RX601RRYG 222 * LG Seeds LG * Beck * Pioneer 35P * Specialty Hybrids * Campbell Seed * Battleground * AgriGold A * DEKALB DKC * Dairyland Stealth * Battleground * DEKALB DKC * Pioneer 36B * Golden Harvest H * Corn Belt C * Great Lakes Hybrids * AgriGold XA * Great Lakes Hybrids * Campbell Seed AgriGold A Corn Belt C Trisler T Dairyland Stealth AgriGold XA Pioneer 35P Pfister Adler Specialty Hybrids Golden Harvest H Rupp XR Pioneer 36B Garst 8590IT DEKALB DKC McKillip Seed icorn.com i106.b Pfister Battleground icorn.com i106.x Stine Parker icorn.com i106.a Parker Grand Mean LSD (10%) Copyright 2001 Purdue Research Foundation Table 2C Northern Early Site: Milford, IN. AgriGold XA * Battleground * ASGROW RX601RRYG 200 * icorn.com i106.b4 199 * Pioneer 35P * Campbell Seed * Trisler T * Pioneer 35P * DEKALB DKC * Pioneer 36B * Specialty Hybrids * Pioneer 36B * LG Seeds LG * Rupp XR * icorn.com i106.a4 192 * Great Lakes Hybrids * Parker * AgriGold A * Adler * Golden Harvest H Dairyland Stealth McKillip Seed AgriGold A Beck icorn.com i106.x Corn Belt C Dairyland Stealth Garst 8590IT Specialty Hybrids DEKALB DKC Golden Harvest H Battleground Great Lakes Hybrids Battleground Stine AgriGold XA DEKALB DKC Corn Belt C Pfister Pfister Parker Campbell Seed Grand Mean LSD (10%) Copyright 2001 Purdue Research Foundation 9

12 Table Northern Mid Average of 3 Sites. Pioneer 34B * DEKALB DKC * Pioneer 34M * AgriGold A * Beck 5283Bt1 216 * icorn.com i111.y6 215 * DEKALB DKC * Beck 5405Bt1 214 * Great Lakes Hybrids XP * Crows * NK N58-D1 213 * Specialty Hybrids * Pioneer 34N * AgriGold A6408Bt 212 * DEKALB DKC * DEKALB DK * icorn.com i106.b4 211 * Rupp XR * Pioneer 34B * Golden Harvest H * Pfister * Corn Belt C * Crows 438 B 209 * McKillip Seed * Specialty Hybrids * Great Lakes Hybrids * Bio Gene BG * ASGROW RX * Beck * Pioneer 34M * Campbell Seed * Beck * DEKALB DKC Seed Consultants SC Dairyland Stealth Pioneer 34G Trisler T Campbell Seed Beck Garst N9523IT NK N60-N icorn.com i111.e Golden Harvest H Campbell Seed Bio Gene BG Battleground Battleground AgriPro LG Seeds LG Battleground Table 3. Continued AgriGold XA icorn.com i108.j Battleground LG Seeds LG icorn.com i108.g icorn.com i106.a Garst N Beck Ex Corn Belt C Trisler T AgriGold A McKillip Seed ASGROW RX Beck ASGROW RX Trisler T Parker 58B icorn.com i106.x Grand Mean LSD (10%) Copyright 2001 Purdue Research Foundation Table 3A Northern Mid Site: Wanatah, IN. Brand Hybrid bu/a Moist. % lbs/bu % % DEKALB DKC * Pioneer 34B * Beck 5283Bt1 224 * DEKALB DKC * Crows 438 B 224 * McKillip Seed * NK N58-D1 222 * Specialty Hybrids * DEKALB DKC * AgriGold XA5709Bt 220 * Crows * Dairyland Stealth * icorn.com i111.y6 218 * Pioneer 34N * Beck * Rupp XR * AgriGold A * Beck 5405Bt1 217 * Corn Belt C Pfister

13 Table 3A. Continued Seed Consultants SC Campbell Seed Campbell Seed Pioneer 34B icorn.com i108.j Golden Harvest H Golden Harvest H icorn.com i106.b icorn.com i108.g Pioneer 34M NK N60-N Bio Gene BG Trisler T icorn.com i111.e AgriGold XA Beck DEKALB DK Beck Great Lakes Hybrids Pioneer 34G ASGROW RX Bio Gene BG DEKALB DKC Campbell Seed Great Lakes Hybrids XP McKillip Seed Battleground Beck Specialty Hybrids AgriPro ASGROW RX Pioneer 34M LG Seeds LG Garst N9523IT Battleground Trisler T Battleground Battleground icorn.com i106.a LG Seeds LG AgriGold XA Garst N Beck Ex Trisler T ASGROW RX Corn Belt C Parker 58B icorn.com i106.x Grand Mean LSD (10%) Table 3B Northern Mid Site: Wabash, IN. DEKALB DK * AgriGold A * Pioneer 34M * Specialty Hybrids * Beck 5283Bt1 216 * Golden Harvest H * DEKALB DKC * Garst N9523IT 215 * Beck * Pioneer 34B * Campbell Seed * Specialty Hybrids * Seed Consultants SC * Pioneer 34B * ASGROW RX * Bio Gene BG * Rupp XR * icorn.com i106.b4 211 * Great Lakes Hybrids XP * Pfister * McKillip Seed * Bio Gene BG * Beck 5405Bt1 208 * icorn.com i111.y6 207 * Crows * LG Seeds LG * Pioneer 34M * NK N58-D1 205 * Beck * Campbell Seed * Corn Belt C * Great Lakes Hybrids * DEKALB DKC * AgriGold XA * Corn Belt C * Pioneer 34N * AgriGold XA5709Bt 202 * Battleground * AgriPro * DEKALB DKC Battleground Trisler T McKillip Seed AgriGold XA Beck Battleground Trisler T Campbell Seed Pioneer 34G Garst N

14 Table 3B. Continued NK N60-N DEKALB DKC icorn.com i111.e LG Seeds LG Battleground Golden Harvest H Beck Ex Beck icorn.com i106.a ASGROW RX Dairyland Stealth ASGROW RX Crows 438 B icorn.com i108.g icorn.com i108.j Trisler T icorn.com i106.x Parker 58B Grand Mean LSD (10%) Table 3C Northern Mid Site: Milford, IN. Yield Harvest Tst Wt. Lodg Stand Great Lakes Hybrids XP * Pioneer 34M * Crows 438 B 222 * Pioneer 34M * icorn.com i111.y6 219 * Pioneer 34B * Beck 5405Bt1 217 * Pioneer 34N * DEKALB DKC * Great Lakes Hybrids * DEKALB DKC * AgriGold XA5709Bt 215 * Pioneer 34G * Crows * AgriGold A * icorn.com i106.b4 212 * NK N58-D1 212 * DEKALB DKC * DEKALB DKC * Corn Belt C * Beck * Bio Gene BG * Trisler T * ASGROW RX Specialty Hybrids Table 3C. Continued Yield Harvest Tst Wt Lodg. Stand Beck 5283Bt Dairyland Stealth Beck Pioneer 34B Battleground Pfister icorn.com i111.e NK N60-N DEKALB DK Golden Harvest H Battleground LG Seeds LG Rupp XR Campbell Seed Specialty Hybrids Beck Golden Harvest H icorn.com i106.a Beck Ex icorn.com i108.j Garst N9523IT Campbell Seed Battleground Garst N icorn.com i108.g Campbell Seed McKillip Seed AgriPro Parker 58B Corn Belt C Seed Consultants SC ASGROW RX Battleground Trisler T Trisler T LG Seeds LG AgriGold XA ASGROW RX Bio Gene BG AgriGold XA icorn.com i106.x McKillip Seed Beck Grand Mean LSD (10%)

15 Table Northern Late Average of 3 Sites. Pioneer 34B * icorn.com i112.f5 211 * Pioneer 34M * DEKALB DKC * Pioneer 33J * Pioneer 33G * Pioneer 33Y * DEKALB DKC * DEKALB DKC * Pioneer 33J * DEKALB DKC * ASGROW RX * Corn Belt C Pioneer 33G ASGROW RX Garst 8664IT ASGROW RX738RR ASGROW RX Golden Harvest H Grand Mean LSD (10%) Copyright 2001 PRF Table 4A Northern Late Site: Wanatah, IN. Pioneer 34B * DEKALB DKC * Pioneer 33G * Pioneer 33J * DEKALB DKC * DEKALB DKC * Pioneer 34M * DEKALB DKC * Pioneer 33J Garst 8664IT icorn.com i112.f ASGROW RX738RR ASGROW RX ASGROW RX Pioneer 33Y ASGROW RX Pioneer 33G Golden Harvest H Corn Belt C Grand Mean LSD (10%) Copyright 2001 PRF Table 4B Northern Late Site: Wabash, IN. DEKALB DKC * ASGROW RX * DEKALB DKC Pioneer 33J DEKALB DKC Pioneer 34B ASGROW RX DEKALB DKC Pioneer 34M Garst 8664IT Pioneer 33Y Pioneer 33G ASGROW RX icorn.com i112.f ASGROW RX738RR Pioneer 33J Golden Harvest H Pioneer 33G Corn Belt C Grand Mean LSD (10%) Copyright 2001 PRF Table 4C Northern Late Site: Milford, IN. Pioneer 33Y * Pioneer 34M * DEKALB DKC * DEKALB DKC * Pioneer 33J * Pioneer 33J * DEKALB DKC * ASGROW RX * icorn.com i112.f5 211 * Pioneer 33G * Pioneer 34B * ASGROW RX * DEKALB DKC * Corn Belt C Pioneer 33G Garst 8664IT Golden Harvest H ASGROW RX738RR ASGROW RX Grand Mean LSD (10%) Copyright 2001 PRF 13

16 Table Central Early Average of 4 Sites. Specialty Hybrids * Pioneer 34B * Specialty Hybrids 4615RR 213 * Rupp XR * Campbell Seed * DEKALB DKC * DEKALB DKC * Beck 5283Bt1 209 * ASGROW RX * Deiner Seeds 1050A 208 * Campbell Seed * DEKALB DKC * Campbell Seed * Rupp XR * Dairyland Stealth * Corn Belt C * icorn.com i108.j3 207 * AgriGold XA * ASGROW RX * DEKALB DKC Dairyland Stealth AgriGold A AgriGold A Pioneer 35P icorn.com i108.b Beck ASGROW RX601RRYG NK N58-D Trisler T icorn.com i108.g DEKALB DKC icorn.com i106.b Battleground AgriPro AgriGold XA LG Seeds LG AgriGold A Garst N9523IT Corn Belt C Vigoro V Battleground Pioneer 36B Battleground Stine 9615Bt Dairyland DST Trisler T Trisler T Grand Mean LSD (10 %)

17 Table 5A Central Early Site: West Lafayette, IN. Specialty Hybrids * Pioneer 34B * Specialty Hybrids 4615RR 221 * Dairyland Stealth * Beck 5283Bt1 219 * ASGROW RX * AgriGold A * NK N58-D1 214 * Pioneer 35P * Dairyland Stealth * Deiner Seeds 1050A 212 * DEKALB DKC * Campbell Seed * ASGROW RX * Campbell Seed * Corn Belt C * Campbell Seed * DEKALB DKC * Rupp XR * ASGROW RX601RRYG 208 * Battleground * DEKALB DKC * AgriGold XA icorn.com i108.g AgriGold A AgriGold XA Rupp XR Trisler T Vigoro V Garst N9523IT AgriGold XA icorn.com i108.b DEKALB DKC icorn.com i106.b Stine 9615Bt LG Seeds LG AgriPro Beck Trisler T Pioneer 36B icorn.com i108.j Battleground Battleground Corn Belt C Trisler T Dairyland DST DEKALB DKC Grand Mean LSD (10%) Table 5B Central Early Site: Cloverdale, IN. DEKALB DKC * Specialty Hybrids * DEKALB DKC * Corn Belt C * Trisler T * icorn.com i106.b4 199 * ASGROW RX * DEKALB DKC * DEKALB DKC * Pioneer 34B * Rupp XR * icorn.com i108.j3 195 * DEKALB DKC * AgriGold XA * Beck * ASGROW RX601RRYG 194 * Rupp XR * ASGROW RX * NK N58-D1 191 * Campbell Seed * Deiner Seeds 1050A 190 * Specialty Hybrids 4615RR Campbell Seed icorn.com i108.b AgriGold A Dairyland Stealth AgriGold A AgriGold XA icorn.com i108.g Dairyland Stealth Battleground AgriPro Garst N9523IT Battleground Pioneer 35P Campbell Seed Beck 5283Bt Trisler T Corn Belt C Battleground Dairyland DST Pioneer 36B Trisler T LG Seeds LG Stine 9615Bt AgriGold XA Vigoro V Grand Mean LSD (10%)

18 Table 5C Central Early Site: Muncie, IN. Battleground * DEKALB DKC * Dairyland DST * Specialty Hybrids 4615RR 221 * Rupp XR * LG Seeds LG * AgriGold XA * Rupp XR * Campbell Seed * AgriGold XA * Dairyland Stealth * icorn.com i108.j3 218 * Deiner Seeds 1050A 218 * DEKALB DKC * AgriPro * Corn Belt C * icorn.com i108.g9 216 * Specialty Hybrids * Vigoro V * AgriGold XA * Campbell Seed * DEKALB DKC * icorn.com i108.b9 213 * Corn Belt C * Campbell Seed * ASGROW RX * Beck * Beck 5283Bt1 210 * Battleground * Garst N9523IT 207 * ASGROW RX601RRYG Pioneer 35P Pioneer 36B Pioneer 34B Stine 9615Bt ASGROW RX icorn.com i106.b Battleground Dairyland Stealth AgriGold A DEKALB DKC DEKALB DKC Trisler T Trisler T NK N58-D Trisler T AgriGold A Grand Mean LSD (10%) NS 4 16 Table 5D Central Early Site: Tipton, IN. Pioneer 34B * Campbell Seed * DEKALB DKC * AgriGold XA * Trisler T * Dairyland Stealth * icorn.com i108.j3 225 * Beck 5283Bt1 225 * DEKALB DKC * Specialty Hybrids * Pioneer 35P * icorn.com i108.b9 221 * Rupp XR * ASGROW RX * AgriGold A * DEKALB DKC * Campbell Seed * Specialty Hybrids 4615RR Campbell Seed Beck Rupp XR DEKALB DKC AgriGold XA Deiner Seeds 1050A NK N58-D LG Seeds LG icorn.com i106.b AgriPro Pioneer 36B Corn Belt C AgriGold XA AgriGold A icorn.com i108.g ASGROW RX601RRYG ASGROW RX DEKALB DKC Stine 9615Bt Vigoro V Battleground Dairyland Stealth Corn Belt C Battleground Battleground Trisler T Trisler T Dairyland DST Garst N9523IT Grand Mean LSD (10%)

19 Table Central Mid Average of 4 Sites. DEKALB DKC * ASGROW RX * ASGROW RX738RR 214 * ASGROW RX * Garst N * DEKALB DKC * Stine * Pfister * icorn.com i111.y6 212 * Pioneer 34M * Adler * Stine * PRIME Farm Seeds * Corn Belt C * Pfister * Bio Gene BG * Beck * Vigoro V * Beck Ex * Beck * AgriGold A * Pfister * Prairie Stream SX * AgriGold XA * Campbell Seed * Garst 8664IT 205 * AgriGold A * Pioneer 34B * LG Seeds LG Vigoro V Diener Seeds Sunstar 2A Prairie Stream SX Beck Trisler T McKillip Seed NK N60-N Battleground Pioneer 34M Pioneer 34N Corn Belt C Beck icorn.com i111.e Trisler T Diener Seeds Trisler T Trisler T AgriGold A LG Seeds LG Dairyland Stealth Diener Seeds Prairie Stream SX Table 6. Continued Campbell Seed Dairyland Stealth Trisler T McKillip Seed NK N64-L Battleground ASGROW RX PRIME Farm Seeds Purple Ribbon Battleground NK N65-Y Prairie Stream SX Grand Mean LSD (10%) Table 6A Central Mid Site: West Lafayette, IN. ASGROW RX738RR 231 * ASGROW RX * Beck * Prairie Stream SX * Stine * LG Seeds LG * Stine * Beck * Vigoro V * Pfister * Garst N * Adler * DEKALB DKC * Pfister * Trisler T * Pfister * PRIME Farm Seeds * Pioneer 34M * Beck * Diener Seeds * Corn Belt C * Prairie Stream SX * Campbell Seed * Vigoro V * ASGROW RX * Trisler T * Pioneer 34M * Trisler T * AgriGold A *