i,-:::::- -:_a i-ftt -0 " " .' H --17) '4 HYBS 1)5 N ALABAMA, 1996 Agronomy and Soils Departmental Series No. 198 December 1996 Alabama Agricultural Experiment Station Auburn University, Alabama Dr. James E. Marion, Director TABLE OF CONTENTS Page INTRODUCTION................................................... .1 ACKNOWLEDGMENTS... ................................................ 4 Table 1. Locations and Cultural Practices for the 1996 Corn Hybrid Tests ......... ...................... 6 NORTHERN ALABAMA Table 2. Two- and Three-year Yield and Lodging Averages for Yellow Corn for Northern Alabama, 1994-96... 7 Table 3. 1996 Yield of Yellow Corn Hybrids by Location and Regional Averages of Hybrid Characteristics in Northern Alabama7..............................7 Table 4. White Corn Hybrid Test, Northern Alabama, 1994-96. ........................................... 8 Table 5. Early Corn Hybrid Test, Northern Alabama, 1994-96..................... ............ .8 Table 6. Characteristics of Corn Hybrids Tested One Year in Preliminary Test at Crossville in Northern Alabama, 1996.. ........................................ 9 CENTRAL ALABAMA Table 7. Two- and Three-year Yield and Lodging Averages for Yellow Corn for Central Alabama, 1994-96 ....... 9 Table 8. 1996 Yield of Yellow Corn Hybrids by Location and Regional Averages of Hybrid Characteristics in Central Alabama0.......10 Table 9. Early Corn Hybrid Test, Central Alabama, 1994-96. ............................................10 Table 10. Characteristics of Corn Hybrids Tested One Year in Preliminary Test at Tallassee in Central Alabama, 1996........................................11I Con' t Table 11. Table 12. Table 13. Table 14. Table 15. Table 16. Table Table 17. 18. BLACK BELT Black Belt Corn Hybrid/Virus Test 1994-96....... SOUTH ALABAMA Two- and Three-year Yield and Lodging Averages for Yellow Corn for Southern Alabama, 1994-96.. 1996 Yield of Yellow Corn Hybrids by Location and Regional Averages of Hybrid Characteristics in Southern Alabama............................ Irrigated Corn Hybrid Performance and Characteristics at Headland, 1994-96 ........... Early Corn Hybrid Test, Southern Alabama, 1994-96........................................ Characteristics of Corn Hybrids Tested One Year in Preliminary Test at Fairhope in Southern Alabama, 1996.................................. Growing Season Rainfall, 1994-96................ Soil Types for Corn Trials, 1996............... SOURCES OF 1996 CORN HYBRID TEST SEED........... ..................... Information contained herein is available to all persons regardless of race, color, sex, or national origin. 11 12 12 13 13 14 14 15 16 EVALUATION OF CORN HYBRIDS IN ALABAMA, 1996 K.M. Glass, D.I. Bransby INTRODUCTION Selected varieties of corn hybrids are evaluated annually by the Alabama Agricultural Experiment Station as a service to producers and industry. These tests are spread throughout the state in an attempt to determine effects of different climatic factors and soil types on yield. There are several types of tests in the program. The Preliminary Hybrid Tests are conducted at one location in each of the northern, central and southern regions of the State. These tests include experimental and newly released hybrids. If a hybrid is outstanding in the preliminary test it is entered in the Regular Corn Hybrid Test in the following year. The Regular Corn Hybrid Test is conducted at three locations in the northern region, three locations in the central region and four locations in the southern region. Early yellow corn hybrids are tested at one location in each region. A white corn hybrid test is conducted at Crossville in northern Alabama. In addition, one regular corn hybrid test is irrigated at Headland in southern Alabama. Locations and cultural practices for all tests are shown in Table 1. 1 Research Assistant and Professor of Agronomy and Soils. -1- PROCEDURE All tests are laid out in a randomized complete block design with four replicate plots for each variety at each location. Rows were 30 to 36 inches apart, depending on location. Two-row plots are used, and both rows are harvested. Plots are 20 to 30 feet long, depending on location. The target plant population for the tests is 20,000 plants per acre with a seeding rate of 23,000 seeds per acre. The irrigated tests at Headland are seeded at a rate to achieve 30,000 plants per acre, but are thinned to 25,000 plants per acre. Grain yields are adjusted to 15.5 percent moisture and converted to bushels (56 lb) per acre. Stalks broken or leaning more than 45 degrees are considered lodged. The mid-silk data show the number of days from planting until approximately half the plants in the plots are showing silks. The Regular Corn Hybrid tests also are examined for disease incidence at selected locations each year. When virus or other disease symptoms indicate crop damage, disease ratings are compiled and published in this report. However, in 1996, no incidence of diseases were noted therefore no disease ratings were taken. INTERPRETATION OF DATA differences in yield among replicate plots are known as random variation. Given this situation it is clearly necessary to have a method to determine whether differences among hybrids are "true" or "real" differences, or whether they are due to random variation. To do this a statistical analysis is conducted to determine a "least significant difference" (LSD) by comparing the differences among varieties with random variation. If the difference in yield between two hybrids is larger than the LSD, then the difference is probably real, but if the difference is less than the LSD, it may not be real. If the difference between two hybrids is less than, but close to the LSD, then there is still a chance that it is real, but if it is considerably smaller than the'LSD, then it is probably not real and mainly due to random variation. With this in mind it is very important to study differences in hybrid yields in relation to the LSD which is provided at the bottom of the table for each of the current year yield columns at each location. Clearly, LSD's vary from one location to another. This is because random variation varies among locations and from year to year. The coefficient of variation (CV) is a reflection of random variation, and is reported below the LSD values in the caused by factors such as disease variation among replicates, etc. In comparing yield potential of two hybrids it is important to consider a wide range of results. Do not focus on results from only one year at one location. Two- and three-year average yields are provided by location and region. These are more useful guides than yields from only one year. However, other factors may deserve consideration. For example, the differences between the highest and the lowest yield of a hybrid across several locations may be an indication of the stability of its yield under variable conditions, or what is the "risk level" of the variety. Differences in yield of hybrids among locations will be a result of the combined effects of differences among locations in soil, weather' (mainly rainfall), planting date, weed control, and other factors. To assist in estimating which factors most likely had the greatest effect on yield differences among locations, planting dates and cultural practices (TIable 1), rainfall records (Table 17) and soil types (Table 18) are provided. This information also serves as a guide for assessing conditions to which results may be extrapolated. NORTHERN ALABAMA Tennessee Valley Substation, Belle Mina .... B.E. Norris, H.E. Burgess Sand Mountain Substation, Crossville........ M.E. Ruf Upper Costal Plain Substation, Winfield..... CENTRAL ALABAMA Black Belt Substation, Marion Junction...... Prattville Experiment Field, Prattville..... E.V. Smith Research Center, Shorter......... Field Crops Unit, Shorter.............. Plant Breeding Unit, Tallassee......... Lower Coastal Plain Substation, Camden...... SOUTHERN ALABAMA Brewton Experiment Field, Brewton........... Monroeville Experiment Field, Monroeville... Gulf Coast Substation, Fairhope............. Wiregrass Substation, Headland.............. R.C. Rawls J.L. Holliman, J.R. Harris D.P. Moore J.S. Bannon D. Williamson S. P. Nightengale J.A. Little, P.A. Rose J.R. J.R. E.L. N.R. M.D. L.N. B.E. Akridge Akridge Carden, McDaniel, Pegues Wells, Gamble Appreciation is also expressed to Mien-Huei Tzeng, Research Data Analysis, for the computation, summarization, and analysis of the data in this report. -5- TABLE 1. LOCATIONS AND CULTURAL PRACTICES FOR THE 1996 CORN HYBRID TESTS Planting Nitrogen Plant date rate* population Date harvested Herbicides used NORTHERN ALABAMA Tennessee Valley Substation (Belle Mina) .... Sand Mountain Substation (Crossville) Early corn test......................... Regular test............................. Preliminary test......................... White corn test ................ Upper Coastal Plain Substation (Winfield) . CENTRAL ALABAMA E.V. Smith Research Center (Shorter) Early corn test..................... Plant Breeding Unit (Tallassee)........ Prattville Experiment Field (Prattville). Black Belt Substation (Marion Junction).. Lower Coastal Plain Substation (Camden).. Aprril3 April April April April May April April March April April 9 12 12 12 3 8 4 15 9 18 SOUTHERN ALABAMA Brewton Experiment Field (Brewton)...........April 5 Monroeville Experiment Field (Monroeville).. March 15 Wiregrass Substation (Headland) Regular test (unirrigated) ....... April 4 Regular test (irrigated)................. April 4 Gulf Coast Substation (Fairhope) Early corn test......................... March 4 Regular test.............................March 21 Preliminary test......................... March 21 150 158 155 155 155 120 120 140 120 125 120 120 140 160 220 160 150 150 20,000 September 6 20, 000 20, 000 20,000 20, 000 20,000 20,000 20, 000 20,000 20, 000 20,000 September September September September September 11 19 19 20 24 August 27 August 27 August 14 September 6 August 23 20,000 August 23 20,000 August 22 20,000 August 28 25,000 August 28 20,000 20, 000 20,000 August 12 August 13 August 12 Atrazime/Dual Atrazime/Dual Atrazine/Dual Atrazime/Dual Atrazime/Dual Atrazime/Dual / Broadstrike Atrazime/Dual Atrazime/Las so Atrazime Atrazime/Dual None applied Atrazime/Dual Atrazime/Dual Atrazine Atrazime Atrazime/Dual Atrazime/Dual Atrazime/Dual *Pounds per acre N. Lime, phosphorus, potassium, zinc, recommendations. and sulfur were applied according to soil test Location I noi ~ -I r II ri II3ni I fl ti0 0 TABLE 2. TWO- AND THREE-YEAR YIELD AND LODGING AVERAGES FOR YELLOW CORN FOR NORTHERN ALABAMA**, 1994-96 Yield Per Acre, Av. Lodged Stalks, Av. Brand Name-Hybrid 3-yr. 2-yr. 3-yr. 2-yr. 1994-96 1995-96 1994-96 1995-96 Bu. Bu. Pct. Pct. Terra TR 1185 ................ 114 97 4.1 5.7 Pioneer 3156 ................ 113 94 4.1 5.3 Pioneer 3163 * .............. 112 93 3.8 5.2 Pioneer 3167 * .............. 112 97 2.5 3.5 Pioneer 3154 .............. . 111 94 4.4 6.2 Terra TR702E ................ 110 99 2.7 4.0 AgraTech 787 * .............. 110 90 2.3 3.2 Terra TR 1167 ................ 108 93 2.1 2.8 Hy Performer HS9843 ........... 107 100 1.6 2.2 Pioneer 3223 ................ - 100 - 3.3 Hy Performer HY 9899V ....... ... - 99 - 5.5 Dekalb DK 683 ............... - 95 - 2.8 Northrup King N8020 ......... - 92 - 3.0 Funk's DG 5516 .............. - 85 - 3.0 Dekalb DK 706 ............... - 85 - 6.2 Hy Performer HY 9919V ....... - 85 - 3.5 AgraTech 737 ............... - 83 - 6.2 * Standard hybrids for comparison. ** Belle Mina, Crossville, and Winfield. TABLE 3. 1996 YIELD OF CORN HYBRIDS BY LOCATION AND REGIONAL AVERAGES OF HYBRID CHARACTERISTICS IN NORTHERN ALABAMA 1996 Regional Averages. Brand Name-Hybrid Belle Mina Crossville Winfield Yield Lodged Test Mid-** Husk* Harvest Per Acre Stalks Weight Silk Cover Moisture Bu. Bu. Bu. Bu. Pct. Lb./Bu. Mo.-Da. Rating Pct. Terra TR702E .................. 79 165 109 117 2.3 57.4 6-25 2 20.3 Pioneer 3223 .................. 48 160 135 114 2.0 58.2 6-25 2 19.7 Pioneer 3167 *................ 56 156 121 111 2.0 57.7 6-26 2 22.1 Hy Performer HS9843 ........... 77 143 111 110 1.7 58.1 6-23 2 19.5 Hy Performer HY 9899V ......... 72 153 105 110 5.0 56.8 6-25 2 21.8 Terra TR 1185 ................. 63 151 111 108 4.3 57.1 6-26 2 21.7 Terra TR 1167 .................. 72 132 117 107 2.3 57.9 6-24 2 19.7 Pioneer 3163 * ............... 62 140 115 106 3.0 57.5 6-25 3 19.5 Dekalb DK 683 ................. 57 149 110 105 2.3 57.3 6-26 2 20.3 Pioneer 3156 ................... 63 149 103 105 5.7 57.5 6-25 2 20.8 Northrup King N8020 ............ 70 136 97 101 1.7 57.5 6-25 2 19.5 Funk's DG 5670 ................. 66 140 97 101 6.0 57.0 6-25 2 21.5 Pioneer 3154 .................. 65 144 88 99 3.0 57.6 6-23 2 20.8 Dekalb DK 706 ................. 60 131 107 99 3.3 58.1 6-23 2 21.3 Dekalb DK 687 .................. 57 149 89 99 1.7 57.3 6-25 2 21.0 AgraTech 787 * ............... 68 151 76 98 3.0 57.8 6-25 2 20.6 Pioneer 3260 .................. 51 140 99 96 2.3 58.3 6-25 3 20.8 Hy Performer HY 9919V ......... 57 140 79 92 3.3 55.3 6-24 3 20.9 AgraTech 737 ................... 45 141 89 92 4.7 56.6 6-24 2 19.2 Funk's DG 5516 ................. 59 116 83 86 2.3 57.1 6-24 2 19.9 Test Average ................... 62.1 144.2 101.9 L.S.D. (.05) .................. 17.1 18.5 27.2 C.V. (%) ..................... 19.4 9.1 18.9 * Standard hybrids for comparison. ** 1= Excellent; 5= Very Poor. -7- TABLE 4. WHITE CORN HYBRID TEST, NORTHERN ALABAMA***, 1994-96 Yield Per Acre, Av. Lodged Stalks, Av. 1996 Brand Name-Hybrid 3-yr. 2-yr. 1996 3-yr. 2-yr. 1996 Midsilk Test Husk*** Harvest 1994-96 1995-96 1994-96 1995-96 Weight Cover Moisture Bu. Bu. Bu. Pct. Pct. Pct. Mo./Da. Lb./Bu. Rating Pct. Zimmerman Z64W .............. 132 107 113 1.3 1.5 1.0 6-27 58.7 2 17.2 Hy Performer HB 947005W .... 131 108 113 0.3 0.5 0 6-26 59.3 2 17.1 Zimmerman Z62W ............... 127 107 131 0.7 0.5 1.0 6-25 59.2 2 16.4 Hy Performer HS 175W ....... 122 99 111 2.0 1.5 1.0 6-27 58.5 2 17.7 Hy Performer HY 9796W ...... - 102 114 - 1.0 1.0 6-25 59.5 2 18.2 Pioneer 3163 * ............. - - 153 - - 1.0 6-27 57.5 3 16.7 Pioneer 3167 * ............. - - 141 - - 0 6-27 59.8 2 17.9 AgraTech 787 * ............. - - 136 - - 1.0 6-28 58.0 2 16.4 Zimmerman Z72W .............. - - 115 - - 0 6-27 60.2 2 17.0 Dyna-Gro 8122W ...............- - 98 - - 2.0 6-24 58.4 2 17.5 Test Average ............... 122.3 L.S.D. (.05) ............... 37.1 C.V. (%) ................... 20.9 * Yellow Corn Check Hybrid. ** 1= Excellent; 5= Very Poor. "** Crossville. TABLE 5. EARLY CORN HYBRID TEST, NORTHERN ALABAMA***, 1994-96 Yield Per Acre, Av. Lodged Stalks, Av. 1996 Brand Name-Hybrid 3-Yr. 2-Yr. 1996 3-Yr. 2-Yr. 1996 Midsilk Test Husk** Harvest 1994-96 1995-96 1994-96 1995-96 Weight Cover Moisture Bu. Bu. Bu. Pct. Pct. Pct. Mo./Da. Lb./Bu. Rating Pct. Pioneer 3245 * ............ 144 126 137 0.3 0.5 1.0 6-23 59.0 2 17.3 Funk's DG 5510A ............. ..- 143 169 - 0.5 1.0 6-22 56.2 2 18.7 AgraTech 787 * ............. - 130 146 - 1.0 1.0 6-26 57.2 2 19.0 Zimmerman Z29 .............. - 121 128 - 0 0 6-25 57.1 2 18.1 Zimmerman Z41 .............. - 120 128 - 0 0 6-22 58.7 2 17.3 Dekalb DK 668 .............. - 119 124 - 1.0 1.0 6-24 56.8 2 18.1 Dekalb DK 626 ................ - - 145 - - 1.0 6-22 58.2 2 17.0 Zimmerman Z37 ................ - - 142 - - 0 6-24 56.9 2 19.1 Pioneer 3310 ................. - - 139 - - 1.0 6-20 59.6 2 17.7 Dekalb DK 642 ................ - - 113 - - 0 6-23 56.8 2 18.5 Test Average ............... 137.2 L.S.D. (.05) ............... 16.8 C.V. (%) ................... 8.5 * Standard Mid to Late Season Hybrids. ** 1= Excellent; 5= Very Poor. ** Crossville. -8- REPORT OF PRELIMINARY TESTS TABLE 6. CHARACTERISTICS OF CORN HYBRIDS TESTED ONE YEAR IN PRELIMINARY TEST AT CROSSVILLE IN NORTHERN ALABAMA, 19 9 6 Brand Name-Hybrid Av. Yield Lodged Husk** Midsilk Test Harvest Per Acre Stalks Cover Weight Moisture Bu. Pct. Rating Mo.-Da. Lb./Bu. Pct. Pioneer 3245 * ............ 170 0 2 6-26 60.0 16.3 HyPerformer AP 9707 ........ 155 2.0 2 6-26 57.6 15.9 Northrup King N7931 ........ 151 0 2 6-21 59.7 16.5 Pioneer 3163 * ............ 151 0 3 6-26 57.6 16.1 Pioneer 3167 * ............ 150 0 2 6-27 58.9 17.5 AgraTech X5760 .............. 145 1.0 3 6-27 57.8 16.6 Terra E 1176 ............... 144 0 2 6-23 59.4 16.1 AgraTech X5710 ............. 143 0 2 6-24 57.5 16.3 Northrup King N6800 ........ 139 0 2 6-21 58.7 16.2 CIBA 7088X .................. 137 0 2 6-27 56.7 18.0 Mycogen 7250CB .............. 133 0 2 6-20 58.1 16.2 AgraTech X5770 .............. 132 1.0 2 6-26 58.2 16.4 AgraTech X4720 .............. 128 1.0 2 6-27 57.2 17.2 CIBA 4394 .................. 121 0 2 6-21 57.8 15.3 Test Average ...............142.7 L.S.D. (.05) ............... 18.6 C.V. (%) ................... 9.1 * Standard Hybrids for Comparison. ** 1= Excellent; 5= Very Poor. TABLE 7. TWO- AND THREE-YEAR YIELD AND LODGING AVERAGES FOR YELLOW CORN FOR CENTRAL ALABAMA**, 1994-96 Yield Per Acre, Av. Lodged Stalks,Av. Brand Name-Hybrid 3-yr. 2-yr. 3-yr. 2-yr. Bu. Bu. Pct. Pct. Terra TR702E ................... 108 95 0.8 1.3 Pioneer 3163 * .............. 103 90 5.5 7.8 Terra TR 1185 ................. 102 84 6.7 9.0 Pioneer 3167 * .............. 93 95 2.7 3.0 Terra TR 1167 ................ 89 91 2.7 3.0 Pioneer 3154 .................. 80 81 10.2 13.5 Dekalb DK 683 ............... - 69 - 3.3 Northrup King N8020 ......... - 67 - 4.3 Pioneer 3223 ................ - 66 - 7.5 * Standard hybrids for comparison. ** Prattville 1994, 1995 & 1996 3yr Averages. ** Camden 1993, 1994 & 1996 3yr Averages. -9- TABLE 8. 1996 YIELD OF CORN HYBRIDS By LOCATION AND REGIONAL AVERAGES OF HYBRID CHARACTERISTICS IN CENTRAL ALABAMA Brand Name-Hybrid Prattville Camden Yield Lodged Per Acre Stalks 1996 Regional Averages Test Mid- Husk* *Harvest Weiaht Silk Cover Mistuire Bu. Bu. Bu. Pct. Lb./Bu. Mo.-Da. Rating Pct. Terra TR 1167 ............... 143 80 112 6.0 56.6 6-5 1 18.1 Terra TR702E ................136 82 109 2.5 56.0 6-7 1 19.4 Hy Performer HS9843 ........ 143 73 108 4.5 56.7 6-6 2 18.8 Pioneer 3167 * ............ 139 75 107 5.5 55.4 6-6 1 19.6 Pioneer 3163 * ............ 135 75 105 14.5 55.8 6-5 2 18.2 Pioneer 3223 ................136 69 102 15.0 55.3 6-6 2 18.1 Dekaib OK 683 ...............119 83 101 6.5 55.4 6-6 1 17.2 AgraTech 757 ............... 136 65 100 3.0 56.8 6-7 2 18.0 AgraTech 888 ................135 63 99 6.0 58.1 6-6 1 18.8 Pioneer 3260 ................120 70 95 5.5 56.8 6-7 2 17.6 Hy Performer HY 9919V ..... 126 63 95 7.0 53.6 6-6 2 16.4 Hy Performer HY 9899V ..... 142 48 95 19.0 54.5 6-6 2 17.7 Funk's DG 5670 ............. 136 52 94 19.0 54.4 6-7 2 17.6 Northrup King N8020 ........ 130 57 93 8.5 55.2 6-6 2 18.0 Pioneer 3154 ............... 127 53 90 25.5 55.9 6-5 2 17.6 Terra TR 1185 ............... 127 51 89 17.5 55.1 6-6 2 17.9 Test Average .............. 133.0 66.0 L.S.D. (.05) ............. 12.4 19.4 C.V. (%)..................6.5 20.6 *Standard hybrids for comparison. *1= Excellent; 5= Very Poor. TABLE 9. EARLY CORN HYBRID TEST, CENTRAL ALABAMA**, 1994-96 Yield Per Acre, Av. Lodged Stalks, Av. 1996 Brand 3-Yr. 2-Yr. 1996 3-Yr. 2-Yr. 1996 Midsilk Test Harvest Name-Hybrid 1994-96 1995-96 1994-96 1995-96 Weight Moisture Bu. Bu. Bu. Pct. Pat. Pct. MO./Da. Lb./BU. Pct. Pioneer 3394 ... 97 Pioneer 3245 ** .93 AgraTech 787 *.. - Funk's DG 5510A. - Zimmerman Z37... - Dekalb DK 626... - Dekalb DK 668... - Zimmerman Z41... - Zimmerman Z29... - Dekalb DK 642... - Pioneer 3563.... - 84 78 80 77 Test Average.. L.S.D. (.05).. C.V. (%) ........ Standard Mid to Late **Shorter. 97 92 95 87 103 101 99 99 90 89 87 0 0.3 0 0 6-17 0 0 6-18 2.0 0 6-21 0.5 1.0 6-18 - 0 6-21 - 0 6-17 - 0 6-19 - 1.0 6-17 - 0 6-21 - 0 6-17 - 1.0 6-17 94.2 14.7 10.8 Season Hybrids. -10- 59.3 60.7 59.6 55.3 58 .3 56.7 58.5 57 .5 59.6 58.1 56.0 12.3 12.4 14 .4 17.5 18.6 10.6 14 .8 12.5 15.1 11.5 12.8 REPORT OF PRELIMINARY TESTS TABLE 10. CHARACTERISTICS OF CORN HYBRIDS TESTED ONE YEAR IN PRELIMINARY TEST AT TALLASSEE IN CENTRAL ALABAMA, 1996 Brand Name-Hybrid Av. Yield Lodged Husk** Midsilk Test Harvest Per Acre Stalks Cover Weigh Moisture Bu. Pct. Rating Mo.-Da. Lb./Bu. Pct. Pioneer 3163 * ......... 248 0 2 6-16 57.3 19.4 Pioneer 3245 * ......... 233 1.0 2 6-16 59.9 19.2 Pioneer 3167 * ......... 227 1.0 3 6-19 58.9 21.7 HyPerformer AP 9707 ..... 222 1.0 3 6-17 57.3 19.1 Terra E 1176 ............. 222 1.0 2 6-15 57.9 20.4 CIBA 7088X ............... 209 1.0 3 6-19 54.7 25.1 CIBA 4394 ................ 206 0 2 6-11 57.6 16.4 Northrup King N7931...... 192 0 3 6-13 58.4 20.6 Mycogen 7250CB ........... 185 1.0 2 6-13 56.4 19.0 AgraTech X4720 ........... 178 1.0 2 6-19 55.6 21.2 Test Average ............ 211.9 L.S.D. (.05) ............ 24.5 C.V. (%) ................ 8.0 * Standard Hybrids for Comparison. ** 1= Excellent; 5= Very Poor. TABLE 11. BLACK BELT CORN HYBRID/VIRUS TEST***, 1994-96 Yield Per Acre, Av. Lodged Stalks, Av. 1996 Brand Name-Hybrid 3-yr. 2-yr. 1996 3-yr. 2-yr. 1996 Midsilk Test Husk** Harvest 1994-96 1995-96 1994-96 1995-96 Weight Cover Moisture Bu. Bu. Bu. Pct. Pct. Pct. Mo.-Da. Lb./Bu. Rating Pct. Dekalb DK 743 ........... 121 114 153 0 0 0 6-12 56.9 1 20.4 Hy Performer HY 9919V.... 120 115 148 0.7 1.0 1.0 6-15 54.8 1 19.6 Pioneer 3163 * ......... 118 115 163 0.3 0.5 0 6-15 56.7 3 20.3 Hy Performer HY 9899V.... 117 117 148 1.0 1.5 2.0 6-17 56.4 1 19.3 Mycogen 8460 ............ 116 113 149 1.0 1.5 3.0 6-17 55.7 2 19.3 Dekalb DK 683 ........... 116 107 149 0.3 0.5 1.0 6-17 55.9 1 19.9 Pioneer 3154 ........... 110 100 125 1.0 1.5 3.0 6-12 56.4 2 19.3 Funk's G-4666 ........... 108 114 150 0 0 0 6-15 57.9 1 19.5 Funk's DG 5670 ........... - 111 135 - 0.5 1.0 6-16 56.7 1 19.9 Pioneer 3167 *......... - - 158 - - 1.0 6-17 58.5 1 21.2 Funk's G-4581 ............. - - 154 - - 0 6-17 57.8 1 19.7 Cargill X9513 ............ - - 143 - - 1.0 6-17 56.8 1 19.1 Cargill 8328 .............. - - 130 - - 2.0 6-14 56.8 1 19.4 Test Average ............ 146.3 L.S.D. (.05) ............. 19.1 C.V. (%) ................ 9.1 * Standard hybrids for comparison. ** 1= Excellent; 5= Very Poor. ** Marion Junction. -11- TABLE 12. TWO- AND THREE-YEAR YIELD AND LODGING AVERAGES FOR YELLOW CORN FOR SOUTHERN ALABAMA**, 1994-96 Yield Per Acre, Av. Lodged Stalks, Av. Brand Name-Hybrid 3-yr. 2-yr. 3-yr. 2-yr. 1994-96 1995-96 1994-96 1995-96 Bu. Bu. Pct. Pct. Pioneer 3163 * .............. 126 116 5.7 7.8 Hy Performer HS9843 .......... 126 122 4.3 6.3 Cargill 8527A ................ 125 116 4.7 6.8 Hy Performer HS 9944 ......... 123 117 5.1 7.0 AgraTech 888 ................. 123 114 4.6 6.3 Terra TR702E . ............... 122 11i 3.6 5.0 Funk's G-4666 ................ 121 113 3.6 5.0 Northrup King N8811 .......... 121 113 6.0 8.6 Terra TR 1185 ................ 118 108 7.9 10.8 Pioneer 3167 * .............. 115 106 6.4 9.0 Mycogen 9220 ................... 108 96 5.6 7.5 Pioneer 3223 .................. - 123 - 5.4 Dekalb DK 683 ................. - 119 - 5.6 Terra TR 1180 ................. - 115 - 6.0 Hy Performer HY 9899V ....... - 111 - 10.0 Dekalb DK 706 ................. - 111 - 7.3 Funk's DG 5516 ................ - 107 - 3.9 Hy Performer HY 9919V ....... - 105 - 5.0 * Standard hybrids for comparison. ** Fairhope, Brewton, Monroeville, and Headland. TABLE 13. 1996 YIELD OF CORN HYBRIDS BY LOCATION AND REGIONAL AVERAGES OF HYBRID CHARACTERISTICS IN SOUTHERN ALABAMA 1996 Regional Averages. Brand Name-Hybrid Fairhope Brewton Monroeville Headland Yield Lodged Test Mid-** Husk* Harvest Per Acre Stalks Weight Silk Cover Moisture Bu. Bu. Bu. Bu. Bu. Pct. Lb./Bu. Mo.-Da. Rating Pct. Pioneer 3223 .............. 157 186 103 102 137 0.5 57.8 6-11 3 16.0 Pioneer 3163 *............ 172 186 96 92 137 1.3 55.8 6-10 4 15.5 NC+ 7665 ................... 162 184 96 98 135 0.5 56.4 6-14 2 16.2 Hy Performer HS 9944 ...... 166 174 117 80 134 1.0 56.4 6-13 2 16.7 Hy Performer HS9843 ........ 151 165 127 90 133 0.3 56.1 6-11 2 15.2 Cargill 8527A ............... 163 164 116 85 132 0.3 56.7 6-12 2 16.2 Funk's G-4714 .............. 169 176 94 82 130 1.5 57.5 6-13 2 16.8 Cargill X9513 .............. 169 172 94 84 130 0.3 56.8 6-12 2 16.2 Dekalb DK 687 .............. 159 152 120 83 129 0.5 57.0 6-12 2 16.1 Dekalb DK 683 ............. 168 167 77 98 128 0.8 57.4 6-11 2 15.5 Terra TR 1180 ............. 160 174 87 88 127 0.5 55.9 6-10 2 16.0 NC+ 6959 ................... 150 169 98 89 126 1.3 55.9 6-12 2 15.1 Northrup King N8811 ........ 171 160 93 79 126 1.5 58.3 6-11 2 17.0 NC+ 7117 ................... 154 150 118 81 125 0.8 57.2 6-14 3 16.2 Pioneer 3260 ............... 166 158 80 97 125 1.5 57.7 6-11 3 16.1 Terra TR702E .............. 160 167 96 75 125 1.0 56.4 6-13 3 16.1 AgraTech 888 ............... 159 165 83 86 123 0.5 56.6 6-11 2 16.3 Funk's DG 5670 ............. 149 152 101 88 122 4.3 55.5 6-12 3 16.6 Funk's G-4666 ................. 152 151 100 85 122 0.5 57.2 6-11 2 16.4 Hy Performer HY 9899V ..... 145 155 104 84 122 3.3 55.6 6-11 3 16.8 Dekalb DK 706 .............. 157 158 89 81 121 0.5 56.8 6-11 3 16.7 Funk's G-4581 .............. 153 158 97 75 121 0.8 56.8 6-12 3 14.4 Pioneer 3167 * ........... 152 154 92 85 121 2.0 57.5 6-13 2 17.6 Hy Performer HY 9919V ..... 162 167 72 77 119 1.3 53.5 6-11 3 15.7 Funk's DG 5516 ............. 147 159 85 73 116 1.0 55.7 6-11 2 15.6 Terra TR 1185 .............. 160 146 69 89 116 5.8 54.8 6-12 3 16.3 Mycogen 9220 ............... 151 135 46 70 101 1.8 55.8 6-12 2 16.2 Test Average .............. 158.5 163.0 94.3 84.9 L.S.D. (.05) ............... 14.2 17.6 31.1 23.5 C.V. (%) .................... 6.3 7.7 23.4 19.6 * Standard hybrids for comparison. ** 1 = Excellent; 5= Very Poor. -12- TABLE 14. IRRIGATED CORN HYBRID PERFORMANCE AND CHARACTERISTICS, HEADLAND, ALABAMA, 1994-96*** Yield Per Acre, Av. Lodged Stalks, Av. 1996 Brand Name-Hybrid 3-yr. 2-yr. 1996 3-yr. 2-yr. 1996 Midsilk Test Husk** Harvest 1994-96 1995-96 1994-96 1995-96 Weight Cover Moisture Bu. Bu. Bu. Pct. Pct. Pct. Mo.-Da. Lb./Bu. Rating Pct. Hy Performer HS9843 .... 182 187 183 - 1.0 0 6-11 56.9 2 11.4 Pioneer 3163 * ......... 175 176 177 - 2.5 1.0 6-9 57.4 4 11.4 Cargill 8527A .......... 173 176 172 - 2.0 1.0 6-13 58.2 3 11.4 Terra TR702E...........170 179 179 - 2.0 4.0 6-12 57.0 4 11.4 Terra TR 1185.......... 170 182 189 - 2.0 0 6-11 57.0 3 11.4 AgraTech 888........... 169 170 165 - 1.0 0 6-9 57.9 2 11.4 Hy Performer HS 9944... 168 167 154 - 2.0 2.0 6-11 57.6 3 11.4 Northrup King N8811 .... 167 160 159 - 1.5 1.0 6-12 59.3 4 11.4 Pioneer 3167 * ......... 163 163 145 - 2.5 0 6-10 58.0 3 11.4 Mycogen 9220........... 155 151 156 - 2.0 1.0 6-11 57.1 3 11.4 Funk's G-4666.......... 150 146 157 - 0 0 6-11 58.3 3 11.4 Pioneer 3223 ............- 185 183 - 2.0 3.0 6-10 57.8 4 11.4 Hy Performer HY 9899V. - 185 197 - 1.5 0 6-11 57.0 3 11.4 Funk's DG 5516 ..........- 180 167 - 0.5 0 6-11 56.5 3 11.4 Dekalb DK 706 ...........- 180 175 - 2.5 1.0 6-10 58.0 2 11.4 Dekalb DK 683........... - 179 177 - 1.0 2.0 6-11 57.8 3 11.4 Terra TR 1180 ...........- 172 174 - 0.5 0 6-11 58.5 3 11.4 Hy Performer HY 9919V . - 151 156 - 1.5 0 6-11 56.2 3 11.4 Funk's DG 5670 ..........- - 190 - - 1.0 6-9 58.7 3 11.4 NC+ 6959 ................- - 180 - - 0 6-10 57.1 3 11.4 Funk's G-4581 ...........- - 180 - - 1.0 6-12 57.2 3 11.4 NC+ 7117.................- - 175 - - 3.0 6-11 58.9 3 11.4 NC+ 7665.................- - 175 - - 0 6-13 57.0 2 11.4 Dekalb DK 687 ...........- - 173 - - 1.0 6-12 58.6 3 11.4 Funk's G-4714 ...........- - 169 - - 1.0 6-11 57.9 2 11.4 Cargill X9513...........- - 158 - - 0 6-11 58.0 2 11.4 Pioneer 3260 ............ - - 157 - - 1.0 6-11 59.2 3 11.4 Test Average .......... 171.0 L.S.D. (.05) ........ 22.7 C.V. (%) ............ 9.4 * Standard hybrids for comparison. * 1= Excellent; 5= Very Poor. *** The test received approximately 10.0 inches of irrigation water in 8 applications in May, Juneand July. TABLE 15. EARLY CORN HYBRID TEST, SOUTHERN ALABAMA***, 1994-96 Yield Per Acre, Av. Lodged Stalks, Av. 1996 Brand Name-Hybrid 3-yr. 2-yr. 1996 3-yr. 2-yr. 1996 Midsilk Test Husk** Harvest 1994-96 1995-96 1994-96 1995-96 Weight Cover Moisture Bu. Bu. Bu. Pct. Pct. Pct. Mo./Da. Lb./Bu. Rating Pct. Pioneer 3245 * ........ 153 145 129 0.7 0.5 0 6-3 - 3 18.5 Pioneer 3394 ........... 144 135 135 0 0 0 5-30 - 3 16.0 AgraTech 787*.......... - 143 132 - 0 0 6-4 - 3 18.2 DekalbDK 668 ............- 135 119 - 0 0 6-2 - 2 17.6 Zimmerman Z29........... - 135 136 - 0.5 0 6-3 - 2 17.3 Zimmerman Z41 ......... - 135 141 - 0.5 0 5-31 - 3 16.7 Funk's DG 5510A....... - 134 139 - 0.5 1.0 6-1 - 4 19.4 Zimmerman Z37.............- - 138 - - 0 6-2 - 3 19.1 Dekalb DK 642.............- - 126 - - 0 6-1 - 3 16.4 Dekalb OK 626.............- - 119 - - 1.0 6-1 - 3 15.7 Pioneer 3563..............- - 113 - - 0 5-28 - 3 16.1 Test Average ...... 129.7 L.S.D. (.05) ...... 19.8 C.V. (%) .. . . . . . .10.6 * Standard Mid to Late Season Hybrids. ?* 1= Excellent; 5= Very Poor. ? * Fairhope. -13- REPORT OF PRELIMINARY TESTS TABLE 16. CHARACTERISTICS OF CORN HYBRIDS TESTED ONE YEAR AT FAIRHOPE IN SOUTHERN ALABAMA, 1996 IN PRELIMINARY TEST Brand Name-Hybrid Av. Yield Lodged Husk** Midsilk Test Harvest Per Acre Stalks Cover Weight Moisture Bu. Pct. Rating Mo.-Da. Lb./Bu. Pct. Pioneer 3163 * ........... 188 0 3 6-10 - 20.4 CIBA 7088X ................ 183 1.0 2 6-11 - 22.2 Pioneer 3245 * ........... 182 0 3 6-10 - 20.0 Pioneer 3167 * ........... 172 0 3 6-10 - 21.5 HyPerformer AP 9707 ....... 170 0 3 6-11 - 19.4 Terra E 1176 ............... 169 0 4 6-9 - 20.1 Northrup King N7931 ....... 167 0 3 6-6 - 20.6 AgraTech X4720 ............ 162 0 3 6-11 - 20.6 Terra E 1226 ................ 162 0 3 6-11 - 20.2 Cargill 8328 ................ 157 0 3 6-11 - 19.9 Mycogen 7250CB ............. 156 0 4 6-6 - 19.9 CIBA 4394 ................... 151 0 3 6-3 - 18.8 Test Average .............. 168.1 L.S.D. (.05) ............... 14.9 C.V. (%) .. ................. 6.1 * Standard Hybrids for Comparison. ** 1= Excellent; 5= Very Poor. TABLE 17. GROWING SEASON RAINFALL, 1994-96 Monthly rainfall (inches) 7-month Test location Year Mar. Apr. May June July Aug. Sept. total Belle Mina..... 1996 7.1 5.5 1.7 3.3 4.3 4.7 8.1 34.7 1995 3.6 4.8 1.8 2.7 3.0 3.7 7.6 27.2 1994 8.6 2.5 5.7 7.4 3.9 1.6 4.0 33.4 Crossville...... 1996 8.5 4.2 2.8 2.3 5.6 6.6 6.3 36.3 1995 4.4 4.2 1.5 3.4 2.5 7.8 4.1 27.9 1994 8.3 4.3 3.8 7.1 5.9 1.6 6.3 37.3 Winfield ......... 1996 4.8 6.4 1.9 3.8 10.4 3.9 7.6 38.8 1995 6.2 9.2 1.9 1.7 7.8 4.8 2.4 34.0 1994 7.8 3.1 4.7 9.7 7.8 3.0 3.1 39.2 Tallassee...... 1996 8.7 3.6 3.3 1.8 7.6 5.8 7.5 38.3 1995 3.7 3.6 1.3 1.8 1.9 2.7 4.4 19.4 1994 5.6 2.4 1.6 4.9 11.1 4.1 2.3 32.0 Shorter... ........1996 8.6 4.6 4.4 2.4 8.9 6.4 7.4 42.7 1995 4.6 4.2 1.2 1.8 1.5 1.9 6.3 21.5 1994 5.8 2.1 2.2 7.2 10.9 1.2 2.1 31.5 Con' t -14- TABLE 17. GROWING SEASON RAINFALL, 1994-96 Con't Monthly rainfall (inches) 7-month Test location Year Mar. Apr. May June July Aug. Sept. total Prattville...... 1996 11.1 3.6 5.1 3.3 8.0 7.3 7.4 45.8 1995 4.0 4.3 2.0 2.2 1.4 2.3 2.8 19.0 1994 4.6 3.7 1.5 5.3 7.7 1.9 4.5 29.2 Marion Junction.1996 10.3 2.7 2.7 6.4 8.3 3.3 4.4 38.1 1995 5.9 5.4 1.3 1.4 1.4 5.3 6.4 27.1 1994 8.2 3.2 1.6 5.8 7.6 1.9 4.0 32.3 Camden...........1996 12.3 3.8 3.9 4.7 10.3 6.0 3.0 44.0 1995 4.9 4.2 4.3 1.0 3.6 6.3 1.4 25.7 1994 5.5 4.2 2.1 4.8 7.5 1.8 3.3 29.2 Monroeville..... 1996 7.8 5.7 2.3 4.1 4.7 5.5 7.2 37.3 1995 4.2 5.1 4.4 1.0 7.4 10.2 0.8 32.4 1994 4.2 6.6 7.8 8.6 10.8 2.6 3.0 43.6 Brewton.......... 1996 11.1 8.9 1.6 8.0 9.1 12.0 5.4 56.1 1995 8.3 7.5 8.3 2.9 7.9 10.1 1.9 46.8 1994 5.5 7.5 4.4 16.6 15.2 3.2 3.5 55.9 Fairhope........ 1996 10.2 11.7 0.5 7.4 6.6 6.0 7.7 50.1 1995 10.0 6.7 6.0 4.5 8.7 9.6 3.1 48.6 1994 7.8 4.7 2.9 7.3 10.9 6.5 1.5 41.6 Headland......... 1996 6.9 4.7 2.2 2.9 3.6 13.3 11.6 45.2 1995 5.2 4.5 2.8 3.8 5.3 5.2 1.7 28.5 1994 6.5 6.9 0.6 9.4 19.4 3.6 3.5 49.9 TABLE 18. SOIL TYPES FOR CORN TRIALS, 1996 Test location Soil type Belle Mina........................................ Decatur silt loam Crossville........................................ Wynnville fine sandy loam Winfield.......................................... Savannah loam Tallassee......................................... Cahaba loamy sand Shorter........................................... Norfolk sandy loam Prattville........................................ Lucedale fine sandy loam Marion Junction...................................... Vaiden Camden............................................ Forkland fine sandy loam Monroeville....................................... Lucedale loam Brewton........................................... Benndale fine sandy loam Headland.......................................... Dothan sandy loam Fairhope.......................................... Malbis fine sandy loam -15- SOURCES OF 1996 CORN HYBRID TEST SEED Seed Company Brand Seed Company AgraTech Seed, Inc. 5559 N. 500 W. McCordsville, IN 46055 Cargill Hybrid Seeds Box 5645 Minneapolis, MN 55440 CIBA Seeds Ciba-Geigy Corp. Greensboro, NC 27419 DEKALB Genetics Corp. 3100 Sycamore Road DeKalb, IL 60115 Dixie Ag. Supply P.O. Box 534 Athens, AL 35611 Hy Performer Seed Co. One HY Crop Row Memphis, TN 38120 AgraTech Cargill Funk's G, Ciba Dekalb Dyna-Gro, Funk's DG Hy Performer NC+ Hybrids 3820 North 56th St. Lincoln, NE 68504 Northrup King Co. 410 Woodbridge Dr. Somerville, TN 38068 Mycogen Plant Sciences P.O. Box 68 Tulia, TX 79088 Pioneer Hi-Bred Int. 6767 Old Madison Pike Huntsville, AL 35806 Terra International, Inc. P.O. Box 6000 Sioux City, IA 51102 Zimmerman Hybrids, Inc. 5147 W. Franklin Rd. Evansville, IN 47712 NC+ Northrup King Mycogen Pioneer Terra Zimmerman -16- Brand Alabama's Agricultural Experiment Station System AUBURN UNIVERSITY ( Main Agricultural Experiment Station, Auburn. LWESMONE "ADS JACKXs N "r E. V. Smith Research Center, Shorter. MARSHALL DE KALB RaN 1. Tennessee Valley Substation, SCHER Belle Mina. BL OWH 2. Sand Mountain Substation, Crossville. 3. North Alabama Horticulture Substation, JEFFERSON Cullman. 4. Upper Coastal Plain Substation, LLEBURRE Winfield. ELY RANDOLPH 5. Forestry Unit, Fayette County. 6. Chilton Area Horticulture Substation, Clanton. cH' A T C AIBE 7. Forestry Unit, Coosa County. 6 8 8. Piedmont Substation, RRY 7 Camp Hill. EL RE 9. Foresty Unit, Autauga County. 10. Prattville Experiment Field, 0 MA RUSSELL Prattville. NES GOMER 11. Black Belt Substation, Marion Junction. DALLAS BARBOUR 12. The Turnipseed-lkenberry Place, BUTLER PIKE Union Springs. x 13. Lower Coastal Plain Substation, )NROE Y Camden. CRENA COFFEE DALE 14. Forestry Unit, Barbour County. CONECH 16 15. Monroeville Experiment Field, COVINGTON Monroeville. HoJST 16. Wiregrass Substation, 1 7 GENEVA Headland. 17. Brewton Experiment Field, Brewton. 18. Ornamental Horticulture Substation, Spring Hill. 19. Gulf Coast Substation, Fairhope.