........... I N.M. ........... 51 ... ....... . . .. . . . . . .. ........... .............. X .. .. ............ ............... .. ....... .............. ........... ......... ............. ... ... .... .. .......... ...... X , ...... Perfon-nance of COM Hvbrids ................ .. .. in Alabama .................... ......... ... ....... .... .......... 1991 > January 1992 Agronomy and Soils Departmental Series No. 157 Alabama Agricultural Experiment Station Lowell T. Frobish, Director Auburn University X, Auburn University, Alabama .... W % TABLE OF CONTENTS Page INTRODUCTION. 5 ACKNOWLEDGMENTS. 8 Table 1. Locations and Cultural Practices for the 1991 Corn Hybrid Tests9............................................9 NORIBERN AIABAMA Table 2. Two- and Three-Year Yield and Lodging Averages for Yellow Corn for Northern Alabama, 1989-91. ............. 10 Table 3. 1991 Yield of Yellow Corn Hybrids by Location and Regional Averages of Hybrid Characteristics in Northern Alabama..............................................11 Table 4. White Corn Hybrid Test, Northern Alabama, 1989-91 ..... 12 Table 5. Early Corn Hybrid Test, Northern Alabama, 1989-91 ..... 13 Table 6. Characteristics of Corn Hybrids Tested One Year in Preliminary Test at Crossville in Northern Alabama, 1991...........................................*** * 14 CENTRIPAL AIABAMA Table 7. Two- and Three-Year Yield and Lodging Averages for Yellow Corn for Central Alabama, 1989-91. ............. 15 Table 8. 1991 Yield of Yellow Corn Hybrids by Location and Regional Averages of Hybrid Characteristics in Central Alabama.......................................16 Table 9. White Corn Hybrid Test, Central Alabama, 1989-91 ...... 17 Table 10. Early Corn Hybrid Test, Central Alabama, 1989-91 ...... 18 Table 11. Characteristics of Corn Hybrids Tested One Year in Preliminary Test at Tallassee in Central Alabama, 1991 19 BLACK BELT Table 12. Black Belt Corn Hybrid/Virus Test 1989-91. ............. 20 SOUTHERN AIABAMA Table 13. Two- and Three-Year Yield and Lodging Averages for Yellow Corn for Southern Alabama, 1989-91. ............. 21 Table 14. Table 15. Table Table Table 16. 17. 18. 1991 Yield of Yellow Corn Hybrids by Location and Regional Averages of Hybrid Characteristics in Southern Alabama......... Irrigated Corn Hybrid Performance and Characteristics at Headland in Southern Alabama, 1989-91........... White Corn Hybrid Test, Southern Alabama, 1989-91.... Early Corn Hybrid Test, Southern Alabama, 1989-91..... Characteristics of Corn Hybrids Tested One Year in Preliminary Test at Fairhope in Southern Alabama, 1991 VIRS DISEASE REACTIONS OF SOME HYBRIDS IN 1991..................... Results............................................ Table 19. Incidence of Maize Chlorotic Dwarf Virus Disease in Regular Corn Hybrid Tests, 1991.................... Table 20. Incidence of Maize Dwarf Mosaic Virus Disease in RegularCornHybrid Tests, 1991.................... Table 21. Growing Season Rainfall, 1989-91.................... SOURCES OF 1991 ORN HYBRID TEST SEED............................... ACCEPTABLE HYBRIDS FOR 1992............ 22 23 24 25 26 27 28 28 29 31 33 34 35 Information contained herein is available to all without regard to race, color, sex, or national origin PERFORMANCE OF CORN HYBRIDS IN AIABAMA, 1991 D.L. Thurlw and W.C. Johnson 1 INTRODUCTION Corn hybrids are evaluated annually by the Alabama Agricultural Experiment Station in the Regular Corn Hybrid Test and the Preliminary Corn Hybrid Test on a northern, central, and southern regional basis. The Marion Junction, or Black Belt Substation, corn test is used as the prairie soil regional comparison. Entries in the preliminary tests are both experimental and newly released hybrids. If a hybrid is outstanding in the preliminary test, it is entered in the regular corn test the following year. White and early yellow corn hybrids are tested at one location in each region. One regular and one white corn hybrid test are irrigated at Headland in southern Alabama. The locations and cultural practices for the tests are shown in table 1. The tests were designed as a randomized ccoplete block with four replications. Raw width was 30 to 36 inches depending on location. Two-raw plots were used, with raw length ranging from 20 to 30 feet depending, again, on location. The target plant population for the tests was 20,000 plants per acre with a seeding rate of 23,000 seeds per acre. The irrigated tests at Headland were seeded at a rate of 30,000 plants per acre and thinned to 25,000 per acre. IRespectively, Associate Professor and Professor of Agronomy and Soils. -5- Grain yields were adjusted to 15.5 percent moisture and converted to bushels (56 pounds) per acre. Stalks broken or leaning more than 45 degrees were considered lodged. The mid-silk data measured the number of days from planting until one-half of the plants in the plots were showing silks. Bushel test weights are reported as regional averages from this year's data. To aid in determining real yield differences, a statistical analysis of variance is performed on the data from each location. The L. S.D. (least significant difference) and C.V. (coefficient of variation) are given for each location's test. The difference in yield of two hybrids must exceed the L.S.D. value for one hybrid to be considered superior to the others in yield in that particular test. The C.V. is a measure of the variability in an experiment. An increase in its value indicates an increase in the unaccounted variability. The corn hybrid tests are examined for disease incidence each year by R.T. Gudauskas, Professor of Plant Pathology. When virus or other disease symptoms indicate crop damage, disease ratings are compiled and published in this report (page 28). Virus infection data from the tests at Marion Junction, Prattville, Belle Mina, and Crossville are reported this year, tables 19 and 20. Since the performance of hybrids varies with location and year, long-term averages from several locations are more reliable than 1-year performance data. Three-year regional averages are considered a reliable evaluation of the relative performance of hybrids. The irrigation test at Headland had 6.3 inches of water applied in 5 applications during June and July to supplement the rainfall. Good rainfall during May in 1991 set the stage for good yields at most locations. However, at Fairhope excess rainfall, 9 and 13 inches in April and May, respectively, -6- resulted in reduced yields. A committee ccaprised of Department of AgronOmy and Soils research and extension personnel involved in corn research reviewed the past 3 years of corn hybrid test data to assemble the list of acceptable hybrids on pages 35-37. The reccMernded hybrids are not-all equal in performance. Somae are outstanding in one or more characteristics; while others may not be obviously outstanding, they might possess a satisfactory combination of all characteristics. -7- ACKNCWLEDGMENTS Appreciation is expressed to the following supervisory personnel of the outlying units whose quality work makes this a reliable source of information for farmers in their areas. NORfHERN AIABAMA Tennessee Valley Substation, Belle Mina - W.B. Webster, H. E. Burgess, B.E. Norris Sand Mountain Substation, Crossville - J.T. Eason, M.E. Ruf Upper Coastal Plain Substation, Winfield - W.A. Griffey, R.C. Rawls CENTRAL AIABAMA Black Belt Substation, Marion Junction - J.L. Holliman, J.R. Harris Prattville Experiment Field - D.P. Moore E.V. Smith Research Center, Shorter - R.R. Duffield Plant Breeding Unit, Tallassee - S.P. Nightengale SOUTHERN ALABAMA Lower Coastal Plain Substation - J.A. Little, P.A. Rose Brewton Experiment Field - J.R. Akridge Monroeville Experiment Field - J.R. Akridge Gulf Coast Substation, Fairhcpe - E.L. Carden, N.R. McDaniel, M.D. Pegues Wiregrass Substation, Headland - H.W. Ivey, L.N. Wells, B.E. Gamble Appreciation is also expressed to Mien-Huei Tzeng and Mrs. Sally Bagwell, Research Data Analysis, for the ccmputation, smmarization, and analysis of the data in this report. -8- TAMlE 1. LOCATIOtS AND CUJLTURAL PRAM~CES FUR THE 1991 OWN HYMID SI Planting Nitrogen Plant Date Herbicides location date rate* pMxlati on harvested used Northern Alabama Tennessee Valley Substation (Belle Mina) Sand Ymu~ntain Substation (ossville) Reglar test Pre iminary test 'White corn test Early corn test Upper Castal Plain Substation (Winfield) (Planted skips) Central Alabam E.V. Smith Research Center (Shorter) Early corn test White corn test Plant Breeding Unit (Teallassee) * Prattville Experiment Field (Prattville) Black Belt Substation (Marion Junction) Southern Alabam Brewton Experimeant Field (Brwton) Monroeville Experiment Field (Monroeville) Lcwer Coastal Plain Substation (Carden) Wiregrass Substation. (Headland) Regular test (unirrigated) Reuar test (irrigated) White corn test (irrigated) Gulf Coast Substation (Fairhope) Regular test Preliminary test Early corn test Apr il 3 April 22 April 22 April 25 April 3 May 23 June 13 Mardi 20 March 20 Mardh 2 5 Mardi 20 Mardi 21 Mardi 15 Mardi 21 April 4 April 27 April 27 April 27 20,000 August 28 .September 3 136 153 153 153 153 150 20, 000 20,000 20,000 20,000 20,.000 175 175 200 120 150 120 120 131 126 206 206 Mardi 14 150 Mardi 14 150 February 28 150 20,000 20, 000 20,000 20,000 20,000 20,000 20,000 20,000 20,000 25,000 25, 000 20,000 20,000 20,000 September 12 Septemb~er 16 September 17 Septaiter 11 September 30 August 1 August 7 August 20 August 22 August 21 August 22 August 2 3 August 19 Atrazine Atrazine + Dual Atrazine + Duial Atrazine + Duial Atrazine + Dual Atrazine Atraz ine + Lasso Atrazine + Lasso Atrazine + Dual Atrazine Atrazine + Gramoxone Atrazine + Dual Atrazine + Duial Atrazine August 16 & 19 Atrazine August 16 & 19 Atrazine August 16 & 19 Atrazine July 29 July 29 July 24 Atrazine + Duial Atrazine + Dial Atrazine + Dual *Pcund~s per acre N. Lim,phsor, reaxitnexiations. potassium,zinc,and sulfur wre applied according to soil test ~~k ~11A 'I~uwi -~--L- I~l~i Al~ I~H~r i 11 A\ 1U~~nk 3~ TABLE 2. TWO- AND THREE-YEAR YIELD AND LODGING AVERAGES FOR YELLOW CORN FOR NORTHERN ALABAMA*, 1989-91 YIELD PER ACREAV. LODGED STALKS.AV. BRAND NAME-HYBRID 3-YR. 2-YR. 3-YR. 2-YR. 1989-91 1990-91 1989-91 1990-91 B. BU. T PCT. PIONEER 3140 140 131 1.0 0.8 PIONEER 3165 140 122 1.3 1.3 NC+ 7507 138 129 2.0 2.3 ZIMMERMAN Z 27 136 125 20 1. 8 DEKALB DK 689 136 118 2.0 2.0 ZIMMERMAN Z 38 135 122 1.0 0.8 TERRA TR 1180 133 123 1.2 0.8 PIONEER 3320 132 117 1.7 1.5 DELTAPINE G-4666 132 121 1.2 1.0 SUNBELT 1802 132 121 1.2 1.0 NORTHRUP KING S8645 132 121 1.5 1.3 AGRATECH GK 900 131 115 1.5 1.5 TERRA TR 1170 130 120 1.0 1.0 SUNBELT 1827 129 107 1.5 1.3 DEKALB DK 789 129 112 1.3 0.8 SUNBELT 1876 128 105 2.3 2.3 TERRA TR 1190 128 115 1.3 1.0 NORTHRUP KING MCNAIR 508 120 91 3.0 3.0 HY PERFORMER HS-97 120 105 1.5 1.0 NORTHRUP KING S8505 - 130 - 2.0 CARGILL 9027 - 124 - 1.0 NORTHRUP KING N8727 - 124 - 0.5 JACQUES 8510 - 122 - 1.3 AGRATECH 888 - 121 - 0.5 ASGROW RX 911 - 120 - 0.5 ASGROW RX 947 - 120 - 1.8 FFR 16847 - 120 - 1.8 AGRATECH 825 - 120 - 1.0 DEKALB DK 677 - 117 - 1.0 PIONEER 3180 - 117 - 0.8 ZIMMERMAN Z 20 - 111 - 0.8 * BELLE MINA AND CROSSVILLE. -10- TABLE 3. 1991 YIELD OF YELLOW CORN HYBRIDS BY LOCATION AND REGIONAL AVERAGES OF HYBRID CHARACTERISTICS IN NORTHERN ALABAMA 1991 REGIONAL AVERAGES. BRAND NAME-HYBRID BELLE NINA CROSSVILLE WINFIELD*** YIELD LODGED TEST MID-** HUSK* HARVEST PER ACRE STALKS WEIGHT SILK COVER MOISTURE BU. BU. BU. BU. PCT. LBB MO.DA. RATING PCT. PIONEER 3140 113 150 132 0.5 58.0 6-24 2 14.5 TERRA TR 1180 107 153 130 0.5 58.2 6-23 2 13.9 NORTHRUP KING S8505 102 157 130 2.0 58.6 6-23 2 14.5 NORTHRUP KING N8727 97 161 129 0 59.9 6-22 2 14.0 ASGROW RX 947 105 152 128 1.0 57.8 6-25 2 15.0 CARGILL 9027 101 153 127 0 58.6 6-23 2 14.3 DEKALB DK 689 110 144 127 1.5 57.5 6-24 2 14.0 NC+ 7507 114 137 126 1.5 58.2 6-25 3 13.8 ASGROW RX 911 100 151 125 0 58.7 6-23 2 14.1 NORTHRUP KING S8645 102 148 125 0.5 58.9 6-22 2 14.0 PIONEER 3142 106 143 - 124 1.0 58.2 6-24 3 14.0 DEKALB DK 677 101 147 124 1.0 59.3 6-24 2 13.6 DELTAPINE G-4666 103 144 124 0.5 58.7 6-22 2 14.2 HY PERFORMER HS-9773 111 134 122 2.5 57.6 6-23 3 14.1 SUNBELT 1876 85 157 121 1.0 56.6 7-2 2 15.0 PIONEER 3165 103 139 - 121 0.5 58.2 6-26 2 14.9 TERRA TR 1190 101 140 120 0.5 58.4 6-24 2 14.0 AGRATECH 888 108 132 120 0.5 58.4 6-22 2 13.9 PIONEER 3154 112 127 119 2.0 58.4 6-24 2 13.9 NORTHRUP KING PX79 100 139 119 0.5 56.8 6-23 2 13.5 ZIMMERMAN Z 27 104 133 119 1.0 57.4 6-27 2 14.3 ZIMMERMAN Z 38 102 135 - 119 1.0 59.0 6-22 2 13.9 FFR 16847 103 133 118 1.5 58.5 6-21 2 14.5 AGRATECH 757 97 139 - 118 0.5 58.2 6-25 2 13.7 TERRA TR 1170 103 133 - 118 0.5 59.1 6-21 3 14.1 FFR 793C 106 130 - 118 1.0 57.8 6-23 2 14.3 JACQUES 8510 100 134 - 117 1.0 57.9 6-21 2 14.7 PIONEER 3180 97 135 - 116 0.5 57.5 6-23 3 13.6 SUNBELT 1802 109 122 - 116 1.0 58.3 6-22 2 14.9 DEKALB DK 715 109 123 - 116 1.5 57.7 6-22 2 14.9 TERRA TR 367E 98 132 - 115 1.0 58.5 6-24 2 14.2 FFR 934C 102 126 - 114 1.5 57.8 6-22 2 14.9 PIONEER 3320 104 124 - 114 1.0 58.3 6-25 2 13.8 DEKALB DK 789 100 126 - 113 1.0 57.1 6-26 3 14.5 HY PERFORMER HS-9911 97 129 - 113 1.5 58.6 6-22 2 14.0 AGRATECH GK 900 91 133 - 112 1.0 59.8 6-24 2 14.5 ZIMMERMAN Z 20 92 131 - 112 0.5 58.8 6-25 2 13.9 AGRATECH 825 99 124 - 111 1.5 59.5 6-21 2 14.1 SUNBELT 1827 96 119 - 107 1.0 58.4 6-25 2 15.2 NORTHRUP KING PX9540 94 119 - 107 0.5 58.4 6-22 2 13.9 NORTHRUP KING MCNAIR 508 72 133 - 103 1.5 58.0 7-2 2 15.9 HY PERFORMER HS-97 92 113 - 102 0.5 58.0 6-23 2 14.1 TEST AVERAGE 101.1 136.4 L.S.D. (.05) 11.7 23.0 C.V. (%) 8.3 12.0 * 1 EXCELLENT; 5z VERY POOR. ** MID-SILK DATA FROM BELLE MINA AND CROSSVILLE ONLY. *** YIELD NOT RECORDED DUE TO POOR STAND. -11- TABLE 4. WHITE CORN HYBRID TEST, NORTHERN ALABAMA*, 1989-91 YIELD PER ACREAV. LODGED STALKSAV. 1991 BRAND NAME-HYBRID 3-YR. 2-YR. 1991 3-YR. 2-YR. 1991 MIDSILK TEST HUSK*** HARVEST 1989-91 1990-91 1989-91 1990-91 WEIGHT COVER MOISTURE BU. BU. BU. PCT. PCT. PCT. O./DA. LB./BU. RATING PCT. PIONEER 3165 ** 142 128 123 1.0 1.0 2.0 7-9 57.2 1 15.8 DEKALB DK 689 * 134 115 117 0.7 1.0 1.0 7-8 56.8 1 15.0 ZIMMERMAN Z 54 W 130 112 115 4.0 3.5 4.0 7-9 56.7 2 16.3 DELTAPINE G-4644W 130 112 108 3.0 2.5 3.0 7-8 58.1 2 15.7 HY PERFORMER HS 175W 128 109 113 2.3 2.0 2.0 7-8 57.3 1 15.9 ZIMMERMAN Z 16 W 126 113 111 1.7 1.5 2.0 7-7 57.8 2 16.0 PIONEER 3144W 125 104 98 2.3 2.5 3.0 7-9 57.4 2 15.6 AGRATECH 917 W 124 103 109 2.3 1.5 2.0 7-8 56.5 1 15.4 ZIMMERMAN Z 14 W 119 101 95 3.0 3.0 3.0 7-7 57.2 1 15.9 ZIMMERMAN Z 17 W 118 94 97 2.0 2.0 2.0 7-6 57.2 2 15.0 ZIMMERMAN Z 63 W - 110 112 - 1.5 2.0 7-8 57.8 1 15.8 FFR 922W - 110 110 - 1.0 1.0 7-8 59.5 1 16.5 ZIMMERMAN Z 61 W - 102 106 - 0.5 1.0 7-8 57.4 1 14.8 AGRATECH GK 927W - 101 108 - 1.5 2.0 7-9 57.3 2 16.2 AGRATECH X 0717W - - 124 - - 3.0 7-7 58.5 1 16.2 UAP 700W - - 112 - - 2.0 7-7 58.4 1 15.8 PIONEER 3281W - - 103 - - 2.0 7-9 58.5 1 15.3 TEST AVERAGE 109.3 L.S.D. (.05) 17.6 C.V. M ) 11.3 * CROSSVILLE. ** YELLOW CORN CHECK HYBRID. *** 1= EXCELLENT; 5= VERY POOR. - 12- TABLE 5. EARLY CORN HYBRID TEST# NORTHERN ALABAMA** 1989-91 YIELD PER ACRE.AV._ LODGED STALKS.AV. - 1991 BRAND NAME-HYBRID 3-YR. 2-YR. 1991 3-YR. 2-YR. 1991 MIDSILK TEST HUSK** HARVEST 1989-91 1990-91 1989-91 1990-91 WEIGHT COVER MOISTURE BU. BU. BU. PCT. PCT. PCT. MO./DA. LB.IBU. RATING PCT. PIONEER 3165 DEKALB OK 689 ZIMMERMAN Z 27 ZIMMERMAN Z 38 PIONEER 3295 SUNBELT SB 1839 AGRATECH 825 DEKALS DK 649 SUNBELT 1827 DELTAPINE G-4666 DELTAPINE DP 5750 SUNBELT 1802 AGRATECH 888 PIONEER 3245 ZIMMERMAN Z 20 NORTHRUP KING PX9540 DELTAPINE 4581 NORTHRUP KING PX79 DEKALB DK 643 FFR 19448 SUNBELT 1803 JACQUES 8210 MY PERFORMER HS-60 NORTHRUP KING N7816 MY PERFORMER HS-9773 FFR 10467 ZIMMERMAN Z 36 AGRATECH 757 FFR 19439 UAP 8344 PIONEER 3394 TEST AVERAGE L.S.D. (.05) C.. 154 146 134 133 132 131 131 130 126 126 125 123 121 140 161 137 163 127 136 121 128 116 128 112 126 119 123 119 138 113 125 114 118 118 120 113 107 112 117 126 135 123 136 114 119 - 145 - 141 - 141 - 133 - 131 - 129 - 127 - 127 - 125 - 124 - 119 - 119 - 118 w 117 m 109 0.7 0.7 0.7 0.3 0.7 1.3 0.7 0 0.7 1.3 1.7 1.0 0.7 0.5 0 6-24 57.2 3 0 0 6-22 57.0 2 0 0 6-19 56.9 2 0 0 6-20 56.9 2 0 0 6-22 56.2 3 0.5 0 6-23 57.7 2 0.5 1.0 6-20 57.0 2 0 0 6-23 55.8 3 0 0 6-22 57.3 2 1.0 1.0 6-21 57.8 1 1.0 1.0 6-21 56.8 1 0.5 1.0 6-19 56.1 2 0 0 6-20 56.8 1 1.0 1.0 6-21 58.4 2 0.5 0 6-22 57.7 2 0.5 1.0 6-21 58.0 2 - 1.0 6-22 56.8 3 - 0 6-20 55.3 2 - 1.0 6-21 55.1 3 - 0 6-23 55.9 3 - 0 6-20 57.1 2 0 6-20 56.8 1 1.0 6-22 57.3 2 - 0 6-21 54.5 3 - 0 6-22 56.7 3 - 0 6-21 56.9 2 - 1.0 6-21 57.0 2 - 0 6-23 56.4 2 - 0 6-20 56.9 1 - 0 6-21 57.2 2 - 0 6-20 57.0 2 128.5 21.9 12.2 %go v 0 11 f wffb * CROSSVILLE. In- 1 EXCELLENT; 5z VERY POOR. **STANDARD MID TO LATE SEASON HYBRIDS. -13- 16.5 15.5 15.7 16.0 15.5 16.0 15.8 15.5 15.6 16.0 15.9 15.5 15.8 15.1 15.6 15.6 15.5 15.3 15.3 15.8 15.6 15.5 15.8 15.5 15.4 15.7 16.2 15.6 15.8 15.5 15.2 Y~PTYPIIP rlYC PYl~~n r ~1V ~ TABLE 6. CHARACTERISTICS OF CORN HYBRIDS TESTED ONE YEAR IN PRELIMINARY TEST AT CROSSVILLE IN NORTHERN ALABAMA, 1991 BRAND NAME-HYBRID AV. YIELD LODGED HUSK* MIDSILK TEST HARVEST PER ACRE STALKS COVER WEIGHT MOISTURE BU. PCT. RATING MO.-DA. LB./Bg. PCT. DEKALB DK 689 ** 153 1.0 2 7-5 58.2 15.5 UAP 8105 151 0 3 7-6 57.6 16.0 DELTAPINE 6111X 151 1.0 2 7-4 56.6 16.3 PIONEER 3165 ** 147 1.0 2 7-5 57.6 16.0 DELTAPINE 7056X 147 0 1 7-3 57.1 16.1 PIONEER X0726 145 1.0 2 7-6 57.3 15.4 AGRATECH X1725 143 0 2 7-6 57.2 15.6 UAP 8116 143 1.0 1 7-3 57.5 15.6 NC+ 7304 142 1.0 2 7-6 56.7 15.3 HY PERFORMER HS9704 141 1.0 3 7-4 57.1 15.8 DEKALB DK 743 140 2.0 2 7-2 57.4 16.0 NORTHRUP KING N8318 138 0 2 7-1 54.9 16.1 CARGILL 7997 136 1.0 3 7-1 57.8 15.5 NORTHRUP KING N7816 136 1.0 3 7-2 56.3 15.2 PIONEER X0813 135 1.0 2 7-5 58.0 15.3 JACQUES 8410 130 1.0 3 7-5 57.2 16.2 PIONEER 3320 127 2.0 2 7-5 56.8 15.2 FFR 45240 126 0 3 7-6 55.7 16.0 DELTAPINE 4581 126 1.0 2 7-5 57.1 15.2 UAP XP8309 126 1.0 3 7-3 56.9 15.6 UAP 8344 125 1.0 2 7-3 57.2 15.5 NC+ 8410 125 0 2 7-7 56.1 15.9 AGRATECH X1900 125 1.0 3 7-5 58.2 15.7 AGRATECH 1177 124 1.0 2 7-11 56.3 17.3 PIONEER 3394 120 1.0 2 7-1 56.9 14.4 SUNBELT 1803 119 0 2 7-3 56.8 15.3 ZIMMERMAN Z 36 116 1.0 2 7-4 56.9 14.6 HY PERFORMER HS9592 115 0 2 7-3 58.2 15.4 UAP 8290 115 0 2 7-2 57.9 15.8 NY PERFORMER HS-60 110 2.0 2 7-5 57.1 16.0 TEST AVERAGE 132.4 L.S.D. (.05) 20.8 C.V. (X) 11.2 * 1= EXCELLENT; 5z VERY POOR. ** STANDARD HYBRIDS FOR COMPARISON. -14- TABLE 7. TWO- AND THREE-YEAR YIELD AND LODGING AVERAGES FOR YELLOW CORN FOR CENTRAL ALABAMA*, 1989-91 YIELD PER ACRE,AV. LODGED STALKSAV BRAND NAME-HYBRID 3-YR. 2-YR. 3-YR. 2-YR. 1989-91 1990-91 1989-91 1990-91 BU. BU. PCT. PCT MCCURDY 7777 104 102 1.2 1.5 JACQUES 9220 100 99 1.2 1.5 DELTAPINE DP 5750 99 94 1.0 1.3 DEKALB DK 689 97 94 1.0 1.3 TERRA TR 1180 96 91 0.5 0.5 DELTAPINE G-4666 96 90 0.8 1.0 TERRA TR 1190 96 96 0.7 0.8 SUNBELT 1802 94 92 1.7 2.3 PIONEER 3320 94 92 1.7 2.5 JACQUES 8210 93 95 1.5 1.8 SUNBELT 1860 93 90 1.0 1.3 TERRA TR 1170 92 87 0.5 0.5 NC+ 7507 92 92 1.2 1.5 PIONEER 3165 92 93 2.7 3.8 DEKALB DK 789 92 92 1.7 2.3 SUNBELT 1827 90 87 1.5 2.3 ZIMMERMAN Z 27 89 88 1.2 1.8 HY PERFORMER HS-97 88 85 1.0 1.3 ZIMMERMAN Z 38 88 84 0.7 1.0 AGRATECH GK 900 85 83 2.0 2.8 PIONEER 3140 85 89 1.5 2.0 SUNBELT 1876 83 78 2.5 3.3 FFR 934C - 91 - 2.3 AGRATECH 825 - 90 - 0.5 CARGILL 9027 - 89 - 1.8 AGRATECH 888 - 88 - 1.0 ZIMMERMAN Z 20 - 81 - 3.8 * PRATTVILLE AND CAMDEN. -15- TABLE 8. 1991 YIELD OF YELLOW CORN HYBRIDS BY LOCATION AND REGIONAL AVERAGES OF HYBRID CHARACTERISTICS IN CENTRAL ALABAMA 1991 REGIONAL AVERAGES. BRAND NAME-HYBRID PRATTVILLE CAMDEN YIELD LODGED TEST MID- HUSK* HARVEST PER ACRE STALKS WEIGHT SILK COVER MOISTURE BU. BU. BU. PCT. LB./BU. -DA. RATING PCT. DELTAPINE DP 5750 121 114 117 0.5 59.6 6-4 2 14.0 JACQUES 9220 121 113 117 1.0 57.0 6-5 2 13.6 TERRA TR 1190 120 113 116 0.5 58.3 6-4 2 13.7 MCCURDY 7777 112 121 116 1.5 56.9 6-5 2 14.0 DELTAPINE G-4666 119 111 115 1.0 59.4 6-4 1 14.2 TERRA TR 1180 121 109 115 0.5 59.3 6-4 1 14.1 DEKALB DK 689 127 102 114 1.5 56.4 6-5 2 13.5 DEKALB DK 789 120 108 114 3.0 57.1 6-5 2 14.8 AGRATECH 888 120 107 114 1.0 57.8 6-4 2 13.4 PIONEER 3165 119 108 114 4.5 58.9 6-6 2 14.8 PIONEER 3142 106 122 114 1.5 57.8 6-5 3 13.9 HY PERFORMER HS-9911 118 106 112 0 57.8 6-5 2 13.8 SUNBELT 1827 121 100 110 2.5 58.5 6-5 2 13.8 SUNBELT 1802 120 97 109 3.5 57.9 6-5 2 14.3 SUNBELT 1860 118 99 109 1.5 59.0 6-7 1 15.4 PIONEER 3320 115 101 108 3.5 58.7 6-4 2 13.7 SUNBELT SB 1839 108 108 108 5.0 60.3 6-6 2 15.3 TERRA TR 367E 112 103 108 0.5 58.8 6-4 2 13.7 NC+ 7507 113 99 106 1.5 56.6 6-5 2 13.9 HY PERFORMER HS-9773 111 98 104 1.5 57.1 6-4 3 13.7 AGRATECH 825 114 95 104 0 59.5 6-4 2 14.2 SUNBELT 1876 117 91 104 5.0 58.0 6-8 2 16.2 TERRA TR 1170 112 94 103 1.0 58.8 6-4 2 14.0 PIONEER 3140 114 90 102 2.5 55.6 6-5 2 14.2 FFR 934C 105 99 102 1.0 57.7 6-4 2 14.3 JACQUES 8210 108 96 102 1.5 58.4 6-4 2 13.5 HY PERFORMER HS-97 108 94 101 1.5 57.1 6-4 2 13.8 PIONEER 3154 108 92 100 5.5 43.1 6-4 2 14.1 ZIMMERMAN Z 38 103 96 99 1.0 59.0 6-4 2 13.9 ZIMMERMAN Z 27 116 82 99 1.5 56.7 6-5 3 13.5 CARGILL 9027 106 91 98 2.0 58.7 6-4 2 14.4 AGRATECH GK 900 86 106 96 4.5 60.0 6-5 3 14.8 ZIMMERMAN Z 20 91 89 90 6.0 57.6 6-5 2 13.4 TEST AVERAGE 112.9 101.4 L.S.D. (.05) 14.0 19.1 C.V. (M) 8.8 13.4 * 1= EXCELLENT; 5= VERY POOR. -16- TABLE 9. WHITE CORN HYBRID TEST, CENTRAL ALABAMA*, 1989-91 YIELD PER ACRE.AV. LODGED STALKS.AV. 11991 BRAND NAME-HYBRID 3-YR. 2-YR. 1991 3-YR. 2-YR. 1991 MIDSILK TEST HARVEST 1989-91 1990-91 1989-91 1990-91 WEIGHT MOISTURE Bu. 'Buy BU. PCT. PCT. PCT,. MO.IDA., LB.IBU. PCT, ZIMMERMAN Z 54 W PIONEER 3165 ** ZIMMERMAN Z 17 W ZIMMERMAN Z 14 W DEKAIB DK 689 ** HY PERFORMER MS 175W AGRATECH 917 W ZIMMERMAN Z 16 W PIONEER 3144W DELTAPINE G-4644W ZIMMERMAN Z 63 W AGRATECH GK 927W FFR 922W ZIMMERMAN Z 61 W UAP 700W AGRATECH X 0717W PIONEER 3281W 130 132 143 0.7 1.0 2.0 6-2 56.8 11.0 129 142 151 0 0 0 6-2 58.2 11.0 128 133 150 0.7 0.5 0 6-1 57.5 11.0 125 132 137 2.7 3.5 6.0 5-30 57.0 11.0 124 122 142 0.3 05 0 6-1 57.5 11.0 122 121 126 0.3 0.5 1.0 5-30 56.3 11.0 116 125 136 0 0 0 6-1 56.5 11.0 114 122 124 0.3 0.5 1.0 5-29 58.5 11.0 114 117 135 0 0 0 6-1 57.0 11.0 106 122 139 1.3 2.0 3.0 5-31 60.0 11.0 - 135 144 - 0 0 5-31 57.8 11.0 - 123 133 2.5 4.0 6-3 57.2 11.0 - 122 130 0.5 0 5-30 58.7 11.0 - 115 137 0 0 6-2 59.1 11.0 - - 150 - 1.0 5-30 56.8 11.0 - - 143 - 0 5-30 58.8 11.0 - - 136 - - 0 6-2 58.6 11.0 TEST AVERAGE L.S.D. (.05) C.V. (%) 138.4 21.2 10.8 * SHORTER. ** YELLOW CORN CHECK HYBRID. - 17- ----- --- --- --- TABLE 10. EARLY CORN HYBRID TEST, CENTRAL ALABAMA*, 1989-91 YIELD PER ACRE.AV. LODGED STALKSAV. 1991 BRAND NAME-HYBRID 3-YR. 2-YR. 1991 3-YR. 2-YR. 1991 MIDSILK TEST HARVEST 1989-91 1990-91 1989-91 1990-91 WEIGHT MOISTURE BU. BU. BUg PCT. PCT. PCT. MO. DA LBBU. PCT. PIONEER 3165 ** 147 136 141 0.7 0.5 1.0 6-2 58.6 10.5 DELTAPINE DP 5750 144 134 139 0.3 0 0 5-30 58.1 10.5 DEKALB DK 689 ** 143 137 158 0.3 0 0 6-1 57.3 10.5 SUNBELT 1827 142 134 140 0.7 0.5 1.0 5-30 59.5 10.5 DELTAPINE G-4666 141 130 137 0.3 0 0 5-30 58.1 10.5 ZIMMERMAN Z 27 139 124 142 0.3 0.5 1.0 5-29 58.3 10.5 SUNBELT SB 1839 139 129 141 0.3 0.5 1.0 5-30 59.5 10.5 DEKALB DK 649 135 125 133 0.3 0 0 5-31 57.6 10.5 AGRATECH 888 135 126 133 0.3 0 0 5-30 59.1 10.5 SUNBELT 1802 134 129 135 0.3 0 0 5-27 59.4 10.5 AGRATECH 825 131 125 134 0.3 0.5 1.0 5-30 58.8 10.5 ZIMMERMAN Z 38 124 118 131 0.3 0 0 5-30 57.9 10.5 PIONEER 3295 115 103 134 0 0 0 5-29 56.9 10.5 PIONEER 3245 - 134 150 - 0 0 5-30 59.7 10.5 NORTHRUP KING PX9540 - 117 123 - 0 0 5-28 58.8 10.5 ZIMMERMAN Z 20 - 110 124 - 1.0 0 5-30 58.7 10.5 FFR 10467 - - 147 - - 0 5-29 57.8 10.5 HY PERFORMER HS-9773 - - 146 - - 1.0 5-29 57.4 10.5 FFR 19439 - - 139 - - 0 5-29 58.9 10.5 JACQUES 8210 - - 139 - - 0 5-29 58.6 10.5 DEKALB DK 643 - - 138 - - 0 5-28 57.1 10.5 NORTHRUP KING PX79 - - 136 - - 0 5-29 57.3 10.5 DELTAPINE 4581 - - 135 - - 1.0 5-30 58.5 10.5 PIONEER 3394 - - 134 - - 0 5-28 57.7 10.5 SUNBELT 1803 - - 134 - - 0 5-29 58.1 10.5 ZIMMERMAN Z 36 - - 134 - - 1.0 5-30 59.4 10.5 AGRATECH 757 - - 130 - - 0 6-1 58.6 10.5 UAP 8344 - - 130 - - 1.0 5-29 59.5 10.5 FFR 19448 - - 130 - - 0 6-1 59.6 10.5 NORTHRUP KING N7816 - - 127 - - 0 5-29 57.9 10.5 HY PERFORMER HS-60 - - 126 - - 1.0 5-30 59.1 10.5 TEST AVERAGE 136.1 L.S.D. (.05) 14.6 C.V. (X) 7.7 * SHORTER. ** STANDARD MID TO LATE SEASON HYBRIDS. -18- TABLE 11. CHARACTERISTICS OF CORN HYBRIDS TESTED ONE YEAR IN PRELIMINARY TEST AT TALLASSE IN CENTRAL ALABAMA, 1991 BRAND NAME-HYBRID AV. YIELD LODGED HUSK* MIDSILK TEST HARVEST PER ACRE STALKS COVER WEIGHT MOISTURE BU. PCT. RATING MO.-DA. LB./BU. PCT. UAP 8105 163 0 3 6-5 59.0 18.0 DEKALB DK 743 161 0 3 6-4 56.9 17.0 DEKALB DK 689 ** 161 0 2 6-5 57.3 17.5 AGRATECH X1900 158 0 3 6-5 59.2 17.3 NC+ 7304 157 0 3 6-5 57.7 15.2 PIONEER X0726 149 2.0 3 6-5 57.7 17.4 PIONEER 3394 149 0 3 6-4 56.6 15.2 CARGILL 7997 149 0 3 6-4 56.8 15.9 HY PERFORMER HS9704 148 0 3 6-5 58.3 16.8 UAP XP8309 148 0 2 6-3 57.6 16.2 DELTAPINE 6111X 144 0 2 6-4 58.1 17.7 AGRATECH 1177 144 0 2 6-14 56.3 19.5 PIONEER 3320 143 0 3 6-4 57.5 15.5 AGRATECH X1725 143 0 3 6-4 56.4 15.0 UAP 8116 142 0 3 6-5 58.2 17.5 UAP 8344 141 0 3 6-3 58.7 15.4 JACQUES 8410 141 0 3 6-5 59.5 16.6 NORTHRUP KING N8318 141 0 3 6-3 53.3 16.3 SUNBELT 1803 138 0 4 6-4 57.6 15.6 PIONEER 3165 ** 136 0 3 6-6 57.3 17.5 DELTAPINE 7056X 136 0 3 6-4 56.9 17.1 PIONEER X0813 135 0 3 6-4 58.8 16.6 NORTHRUP KING N7816 135 0 4 6-3 56.2 15.8 UAP 8290 133 1.0 3 6-4 58.8 15.6 DELTAPINE 4581 132 0 3 6-4 58.6 16.3 HY PERFORMER HS-60 129 1.0 3 6-4 57.8 16.3 ZIMMERMAN Z 36 128 0 3 6-5 58.0 15.4 NC+ 8410 125 0 2 6-5 54.8 17.6 HY PERFORMER HS9592 124 0 2 6-4 58.3 16.7 FFR 45240 122 1.0 3 6-5 53.4 17.1 TEST AVERAGE 141.7 L.S.D. (.05) 17.0 C.V. (%) 8.5 * 1= EXCELLENT; 5= VERY POOR. ** STANDARD HYBRIDS FOR COMPARISON. -19- TABLE 12. BLACK BELT* CORN HYBRID/VIRUS TEST, 1989-91 YIELD PER ACRE.AV. LODGED STALKSAV. 1991 BRAND NAME-HYBRID 3-YR. 2-YR. 1991 3-YR. 2-YR. 1991 MIDSILK TEST HUSK** HARVEST 1989-91 1990-91 1989-91 1990-91 WEIGHT COVER MOISTURE BU. BU. BU. PCT. PCT. PCT. MO.-DA. LB./BU. RATING PCT. PIONEER 3165 117 121 100 0.3 0.5 1.0 6-4 57.2 1 18.0 DEKALB DK 689 107 112 107 0.3 0.5 0 6-3 56.5 2 17.2 DEKALB DK 789 104 104 81 1.3 1.5 2.0 6-4 57.4 2 18.5 JACQUES 9220 102 100 91 2.3 0.5 1.0 6-4 58.0 1 18.1 MCCURDY 7777 102 103 99 1.0 1.0 2.0 6-4 57.9 1 18.3 SUNBELT 1860 99 104 85 1.0 1.0 2.0 6-5 59.1 1 18.2 AGRATECH GK 900 96 98 93 0.7 0.5 1.0 6-4 59.5 1 18.4 DEKALB DK 649 95 93 82 0.3 0.5 1.0 6-6 55.0 2 15.5 AGRATECH 891 92 96 83 0.7 1.0 1.0 6-2 58.3 1 16.7 AGRATECH 888 85 90 79 0 0 0 6-4 58.8 1 15.8 HY PERFORMER HS-97 84 83 70 1.0 1.0 2.0 5-31 57.2 1 14.2 JACQUES 8510 104 86 - 0 0 5-31 56.8 1 16.9 ASGROW RX 947 103 89 - 0 0 6-4 58.1 1 19.5 DEKALB DK 643 100 84 0.5 1.0 5-30 52.7 2 13.6 AGRATECH 917 98 95 - 0.5 1.0 6-4 56.6 1 18.0 SUNBELT 7400 95 94 - 1.0 1.0 6-8 56.0 1 19.2 TERRA TR 1180 91 87 - 1.0 2.0 6-4 59.4 1 15.0 FFR 934C 91 77 - 1.0 1.0 5-31 57.8 1 17.3 AGRATECH GK 927 - 76 69 - 0 0 6-7 58.1 1 18.6 PIONEER 3085 104 0 6-6 56.8 2 17.6 SUNBELT 1876 - - 98 0 6-16 57.5 1 20.9 JACQUES 8410 - - 95 - 0 5-31 60.4 1 18.7 AGRATECH 1177 - - 95 - - 2.0 6-13 57.3 1 21.8 FFR 45240 - - 89 - 1.0 6-5 55.1 1 18.8 CARGILL 7997 - - 85 - 2.0 5-29 57.7 3 15.4 DELTAPINE G-4666 - - 84 - 1.0 6-4 58.8 1 15.3 DELTAPINE DP 5750 - - 82 - 2.0 6-4 59.5 1 16.0 CARGILL 9027 - 80 - - 1.0 5-31 56.4 1 16.3 NORTHRUP KING S8505 - 78 - - 2.0 6-4 57.3 1 14.9 ASGROW RX 911 - - 75 - - 1.0 6-4 59.1 1 15.6 HY PERFORMER HS-9911 - 74 - 2.0 6-4 58.4 1 16.0 TERRA TR 1190 - - 73 - - 2.0 6-4 58.7 1 16.4 HY PERFORMER HS-60 - 71 - 0 6-5 57.3 1 15.4 TEST AVERAGE 85.7 L.S.D. (.05) 16.3 C.V. (X) 13.6 * MARION JUNCTION. SEE TABLES 19 AND 20 FOR VIRUS DISEASE REACTIONS. ** 1= EXCELLENT; 5 = VERY POOR. -20- TABLE 13.TWO- AND THREE-YEAR YIELD AND LODGING AVERAGES FOR YELLOW CORN FOR SOUTHERN ALABAMA*, 1989-91 YIELD PER ACREAV. LODGED STALKS.AV. BRAND NAME-HYBRID 3-YR. 2-YR. 3-YR. 2-YR. 1989-91 1990-91 1989-91 1990-91 BU. BU. PCT. PCT. DEKALB DK 689 111 106 0.6 0.5 MCCURDY 8181 111 104 0.4 0.4 MCCURDY 7777 111 111 1.5 0.6 SUNBELT 7400 109 99 1.6 0.8 JACQUES 9220 108 110 2.7 1.5 TERRA TR 1180 107 108 0.5 0.3 SUNBELT 1860 107 103 1.0 0.8 SUNBELT 1802 106 108 0.2 0.1 NC+ 7507 106 100 1.5 1.5 SUNBELT 1827 105 101 0.4 0.1 NORTHRUP KING S8645 104 105 0.3 0.3 TERRA TR 1190 103 104 0.8 0.4 TERRA TR 1170 103 98 0.6 0.4 ZIMMERMAN Z 38 103 103 0.3 0 AGRATECH GK 900 103 96 0.9 0.4 NORTHRUP KING MCNAIR 508 101 93 1.1 0.9 SUNBELT 1876 101 97 2.7 0.8 ZIMMERMAN Z 27 100 96 0.8 0.8 HY PERFORMER HS-97 100 97 1.5 0.8 DEKALB DK 789 99 96 0.9 0.6 PIONEER 3165 98 103 1.3 1.0 PIONEER 3140 98 98 0.3 0.3 PIONEER 3320 91 88 1.6 1.4 AGRATECH 888 - 106 - 0.5 NORTHRUP KING S8505 - 105 - 1.1 ASGROW RX 911 - 104 - 0.4 CARGILL 9027 - 102 - 0.8 PIONEER 3055 - 101 - 0.6 ASGROW RX 947 - 101 - 1.8 FFR 16847 - 100 - 0.6 AGRATECH 825 - 100 - 0 NORTHRUP KING N8727 - 99 - 0.1 DEKALB DK 677 - 98 - 0.1 FFR 934C - 95 - 0.6 PIONEER 3180 - 89 - 0.3 ZIMMERMAN Z 20 - 80 - 0.4 * FAIRHOPE, BREWTON, MONROEVILLE, AND HEADLAND. -21- TABLE 14. 1991 YIELD OF YELLOW CORN HYBRIDS BY LOCATION AND REGIONAL AVERAGES OF HYBRID CHARACTERISTICS IN SOUTHERN ALABAM4A 1991 REGIONAL AVERAGES BRAND NAME-HYBRID FAIRHOPE BREWTON MONROEVILLE HEADLAND YIELD** LODGED TEST MID- HUSK* HARVEST PER ACRE STALKS WEIGHT SILK COVER MOI1STURE My= BU. OL FL. ! AL PCT. L LB.IBU. MO.-DA. RATING PCT. TERRA TR 1180 JACQUES 9220 MCCURDY 7777 PIONEER 3085 TERRA TR 1190 AGRATECH 888 SUNBELT 7400 DEKALB OK 689 SUNBELT 1860 SUNBELT 1802 DELTAPINE OP 5750 NORTHRUP KING S865 ASGROW RX 911 AGRATECH GK 900 PIONEER 3055 NORTHRUP KING MCNAIR 508 SUNBELT 1827 DELTAPINE G-4666 SUNBELT 1876 ASGROW RX 947 NY PERFORMER HS-9911 NORTHRUP KING N8727 NORTHRUP KING S8505 DEKALB DK 677 FFR 10467 MCCURDY 8181 FFR 934C PIONEER 3245 GARST 8315 MY PERFORMER HS-977M PIONEER 3165 NC+ 7507 ZIMMERMAN Z 38 PIONEER 3136 DEKALB OK 715 PIONEER 3140 AGRATECH 82 TERRA TR 367E CARGILL 9027 PIONEER 3180 TERRA TR 1170 DEKALB OK 789 NY PERFORMER HS-97 ZIMMERM4AN Z 27 FFR 793C PIONEER 3142 FFR 16847 PIONEER 3320 NORTHRUP KING PX9540 ZIMMERMAN Z 20 98 143 90 145 109 142 88 140 88 131 98 13 58 139 90 139 88 130 106 138 68 128 106 134 90 134 89 146 86 128 72 144 71 143 102 127 62 137 74 140 23 131 108 134 108 126 78 129 112 126 98 125 47 142 78 119 98 123 93 115 96 114 98 -- 119 64 123 111 106 91 128 103 130 71 129 89 118 104 126 63 137 76 113 81 -128 96 -120 93 .122 89 .109 117 '114 81 114 63 103 71 103 42 104 123 111 113 108 123 122 123 112 112 120 121 114 118 110 116 114 106 118' 106 113 108 104 109 107 106 103 88 101 110 III 100 114 102 93 82 104 94 97 95 83 100 109 89 100 95 74 83 84 79 79 140 136 134 139 132 129 122 133 142 126 131 132 127 118 130 114 120 123 124 113 125 122 123 121 124 128 122 130 115 121 131 111 117 142 129 103 113 121 115 114 120 96 119 101 119 131 122 117 103 93 135 0.5 57.7 5-29 2 14.6 131 2.5 55.9 5-29 2 14.4 130 0.8 56.3 5-29 2 14.5 129 1.3 55.9 5-30 3 15.0 129 0.8 56.6 5-29 2 14.6 128 0.5 57.4 5-27 2 14.6 128 1.0 55.3 6-3 2 15.8 128 1.0 54.9 5-28 3 14.7 128 0.8 57.6 6-1 2 15.8 128 0.3 55.9 5-24 2 14.6 127 0.3 57.9 5-29 2 14.8 126 0.3 57.2 5-27 2 14.9 126 0.5 57.1 5-30 2 14.7 125 0.8 58. 5-28 2 14.7 124 0.8 57.1 5-30 2 15.0 124 1.0 56.8 6-5 2 16.1 123 0.3 56.7 5-29 2 14.8 123 0.3 57.4 5-28 2 15.1 122 0.5 55.9 6-5 2, 16.0 122 1.8 55.3 5-30 2 14.6 121 0.8 57.3 5-29 2 14.2 120 0.3 57.0 5-27 3 14.7 119 0.5 55.6 5-29 2 14.3 119 0.3 57.1 5-29 2 14.3 119 0 56.2 5-28 2 14.2 118 0 57.4 5-27 2 15.2 117 0.5 56.5 5-28 2 15.0 116 0.3 57.0 5-28 2 14.2 116 0.8 55.3 5-30 2 15.0 116 0 55.3 5-27 3 14.5 115 1.3 56.0 5-29 2 15.0 115 2.8 54.9 5-28 2 14.6 114 0 56.3 5-23 3 14.6 113 0 55.8 5-28 2 14.7 113 0.5 54.9 5-26 3 14.9 112 0.3 55.0 5-30 2 14.8 112 0 56.9 5-25 2 14.7 112 0 56.1 5-28 2 14.7 112 0.3 55.9 5-26 2 14.6 111 0 54.5 5-28 3 14.7 111 0 56.7 5-26 3 14.9 111 0.3 54.8 5-30 3 15.7 109 1.3 56.1 5-27 2 14.7 108 1.3 54.9 5-30 2 14.4 108 0.3 56.0 5-28 3 15.1 106 1.0 55.5 5-29 3 14.7 106 0.8 55.0 5-27 3 14.4 101 1.3 55.4 5-27 2 14.4 95 0 55.7 5-25 2 14.4 92 0.5 55.5 5-29 3 14.4 TEST AVERAGE 85.8 127.4 104.0 122.2 L.S.D. (.05) 33.1 24.2 22.4 20.8 C.V. M) 276 13.6 15.4 12.2 In1 EXCELLENT; 5= VERY POOR. *YIELDS FROM FAIRHOPE NOT INCLUDED IN REGIONAL AVERAGE BECAUSE OF NIGH COEFFICIENT OF VARIATION CAUSED BY EXCESS RAINFALL; SEE TABLE 21. -22- TABLE 15. IRRIGATED CORN HYBRID PERFORMANCE AND CHARACTERISTICS AT HEADLAND IN SOUTHERN ALABAMA, 1989-91* BRAND NAME-HYBRID DEKALB DK 689 SUNBELT 1860 AGRATECH GK 900 SUNBELT 1827 JACQUES 9220 MCCURDY 8181 SUNBELT 1802 NC+ 7507 DEKALB DK 789 MCCURDY 7777 SUNBELT 7400 ZIMMERMAN Z 27 PIONEER 3140 TERRA TR 1190 NORTHRUP KING S8645 TERRA TR 1180 TERRA TR 1170 NORTHRUP KING MCNAIR 508 PIONEER 3165 HY PERFORMER HS-97 ZIMMERMAN Z 38 SUNBELT 1876 PIONEER 3320 ASGROW RX 947 PIONEER 3055 NORTHRUP KING S8505 DEKALB OK 677 FFR 16847 AGRATECH 888 NORTHRUP KING N8727 ASGROW RX 911 PIONEER 3180 FFR 934C AGRATECH 825 CARGILL 9027 ZIMMERMAN Z 20 PIONEER 3136 HY PERFORMER HS-9911 DELTAPINE G-4666 PIONEER 3245 DELTAPINE DP 5750 FFR 793C FFR 10467 TERRA TR 367E GARST 8315 PIONEER 3142 HY PERFORMER HS-9773 NORTHRUP KING PX9540 PIONEER 3085 DEKALB DK 715 YIELD PER ACRE.AV. LODGED STALKSAV. 1991 3-YR. 2-YR. 1991 3-YR. 2-YR. 1991 MIDSILK TEST HUSK** HARVEST IORO-01 190.1 199-01 190-1 UWI:GHT IAreVID Mr n tlri BU BU. BU. 174 181 172 173 191 196 172 178 163 171 186 190 168 197 190 164 175 168 164 179 176 163 169 165 162 174 158 161 169 165 159 180 181 158 170 168 158 172 166 156 164 162 156 171 181 155 168 161 154 170 172 149 166 164 146 160 150 145 154 140 144 159 148 143 167 163 140 155 151 S 189 183 182 173 - 177 168 - 175 171 - 172 158 - 172 165 S 170 150 - 167 158 S 165 140 - 163 164 * 162 160 - 159 147 - 144 116 S183 S176 - 176 - - 176 - - 173 - - 170 - - 164 S163 S158 * - S155 S155 - 154 - - 152 - - 147 TEST AVERAGE L.S.D. (.05) Cv fM) PCT. 5.0 3.3 1.0 1.3 6.0 3.0 1.0 5.0 4.3 3.3 4.0 5.0 0.7 2.0 1.0 1.0 1.0 4.3 5.7 3.3 3.7 9.0 5.0 1- 1- i- 1- 1- 1- i* 1- 1- 1- i- 1- 1- PCT. PCT .-DA.LB./BU RATING PCT 6.5 12.0 5-31 56.4 3 10.8 4.0 8.0 5-31 58.1 2 10.5 1.5 3.0 5-28 59.9 3 10.6 2.0 3.0 5-28 58.4 3 12.5 5.0 9.0 5-28 57.5 3 11.2 4.5 9.0 6-5 59.5 2 11.0 1.0 2.0 5-28 56.9 2 11.6 6.5 13.0 5-31 54.9 3 10.7 4.5 9.0 5-31 56.8 2 12.3 5.0 10.0 5-31 56.7 3 10.8 5.0 10.0 6-5 56.9 2 10.8 7.5 15.0 6-3 56.9 2 11.7 1.0 1.0 5-31 56.4 3 12.0 3.0 6.0 5-28 58.3 3 10.8 1.5 3.0 5-28 60.9 2 11.3 1.5 3.0 5-31 59.2 2 12.2 1.5 3.0 6-3 57.1 3 11.6 5.5 9.0 6-3 58.5 3 12.1 8.0 14.0 6-3 57.0 2 11.8 4.5 9.0 6-2 57.4 2 11.6 4.5 9.0 5-28 58.0 3 11.5 7.5 13.0 6-5 57.3 2 11.4 6.5 12.0 5-31 56.5 2 12.1 7.0 13.0 5-31 58.0 3 12.9 5.0 10.0 5-31 57.9 2 10.5 4.0 8.0 5-31 57.3 2 11.3 1.5 2.0 5-31 58.1 3 11.0 4.5 9.0 6-2 55.9 3 11.7 3.5 7.0 5-31 59.0 3 12.4 2.0 4.0 6-3 58.3 2 11.6 2.0 4.0 6-5 59.2 2 11.8 5.5 11.0 5-31 55.9 3 11.2 6.0 10.0 5-31 57.8 2 10.8 0.5 1.0 6-5 58.9 3 11.0 7.0 12.0 6-2 57.6 3 11.4 4.5 8.0 5-31 56.0 3 11.4 - 5.0 5-28 57.2 2 11.1 S 6.0 5-31 58.9 3 10.9 S 11.0 6-3 59.2 2 11.6 S 2.0 5-31 57.9 3 11.6 - 4.0 5-31 60.2 3 11.6 S 9.0 5-28 57.2 3 11.6 - 9.0 5-31 57.0 3 10.6 S 2.0 5-28 56.3 3 11.9 - 22.0 6-5 56.0 2 11.6 - 10.0 6-2 56.9 3 11.9 - 23.0 5-31 55.5 2 10.6 - 11.0 5-28 58.0 3 11.0 - 10.0 6-5 57.4 2 11.1 S 2.0 5-28 57.4 3 11.6 164.U 24.5 10 7 -23- * THE TEST RECEIVED APPROXIMATELY 6.3 INCHES OF IRRIGATION WATER IN 5 APPLICATIONS DURING THE MONTHS OF JUNE AND JULY. ** 1I EXCELLENT; 5= VERY POOR. 1707-71 177W-71 VTWT 79 177W-7 I s W" I IT I__ _-I TABLE 16. WHITE CORN HYBRID TEST, SOUTHERN ALABAMA*, 1989-91 YIELD PER ACRE.AV. LODGED STALKS.AV. 1991 BRAND NAME-HYBRID 3-YR. 2-YR. 1991 3-YR. 2-YR. 1991 MIDSILK TEST HUSK*** HARVEST 1989-91 1990-91 1989-91 1990-91 WEIGHT COVER MOISTURE &L .BU, _BU. PCT. PCT, PCT. MO._IDA. LB./BU. RATING PCT. ZIMMERMAN Z 16 W 158 169 152 2.3 2.0 4.0 5-31 58.4 2 14.8 DEKALB DK 689 ** 155 164 166 1.7 1.5 3.0 6-7 56.2 3 12.0 PIONEER 3144W 154 161 139 1.7 1.5 3.0 6-3 56.7 3 14.3 ZIMMERMAN Z 14 W 154 165 152 1.0 1.5 3.0 6-7 57.5 3 14.7 DELTAPINE G-4644W 149 160 152 1.0 1.5 3.0 6-3 58.7 3 13.9 ZIMMERMAN Z 17 W 148 155 152 1.7 1.5 2.0 5-28 58.0 3 14.0 ZIMMERMAN Z 54 W 147 158 145 1.7 2.5 2.0 6-5 56.9 3 13.1 AGRATECH 917 W 144 154 153 1.7 2.5 3.0 5-31 56.7 2 12.9 PIONEER 3165 ** 143 156 141 4.3 5.0 10.0 6-3 56.2 2 14.3 HY PERFORMER HS 175W 139 149 141 1.3 1.0 1.0 6-3 56.8 3 13.9 ZIMMERMAN Z 63 W - 174 163 - 2.5 4.0 6-2 58.2 2 13.6 ZIMMERMAN Z 61 W - 163 148 - 0.5 1.0 6-5 57.7 2 13.9 FFR 922W - 156 149 - 0.5 0 6-3 60.2 3 13.8 AGRATECH GK 927W - 149 156 - 3.0 6.0 5-31 57.0 2 13.6 AGRATECH X 0717W - - 164 - - 2.0 6-3 57.8 2 14.6 UAP 700W - - 152 - - 2.0 5-31 57.8 3 13.8 PIONEER 3281W - - 149 - - 1.0 5-31 58.3 3 13.1 TEST AVERAGE 151.2 L.S.D. (.05) 18.5 C.V. (X) 8.6 * HEADLAND. THE TEST RECEIVED APPROXIMATELY 6.3 INCHES OF IRRIGATION WATER IN 5 APPLICATIONS DURING THE MONTHS OF JUNE AND JULY. ** YELLOW CORN CHECK HYBRID. ** 1= EXCELLENT; 5= VERY POOR. -24- TABLE 17. EARLY CORN HYBRID TEST, SOUTHERN ALABAMA*, 1989-91 DEKAI SUNBI DELDi ZINHI PIONI AGRAl ZI MME DELTO SUNBI PIONE SUNBE DEKAI AGRAl PIONI NORTI ZIMMI NY PE FFR1 DELT NORTI UAP I SUNBE FFR1 NORTD AGRAI FFR1 NY PE Z IMME DEKAI JACQI PIONE YIELD PER ACREAV. BRAND NAME-HYBRID 3-YR. 2-YR. 1991 1989-91 1990-91 Bu. Bu. Bu. LB DK 689 118 101 70 ELT SB 1839 117 92 56 APINE DP 5750 112 92 39 ERMAN Z 38 110 91 43 EER 3165 105 87 47 TECH 888 103 76 36 ERMAN Z 27 102 79 44 APINE G-4666 101 86 49 ELT 1802 100 82 44 EER 3295 98 87 36 ELT 1827 97 70 27 LB DK 649 96 78 30 TECH 825 93 73 28 EER 3245 85 36 HRUP KING PX9540 81 37 ERMAN Z 20- 71 32 ERFORMER HS-9773- - 57 10467 - - 53 APINE 4581 - - 50 HRUP KING N7816 - - 47 834 4 - - 47 ELT 1803 - - 46 19448 - - 46 HRUP KING PX79 - - 4 TECH 757 - - 43 19439 - - 41 ERFORNER HS-60 - - 40 ERMAN Z36 - - 38 LB DK643 - - 36 JES 8210 - - 31 EER 3394 - - 24 TEST AVERAGE L.S.D. (.05) rIv fi 1~ 41.8 17.1 29-2 *FAIRHOPE. In 1 EXCELLENT; 5= VERY POOR. STANDARD MID TO LATE SEASON HYBRIDS. -25- LODGED STALKS.AV.-1991 3-YR. 2-YR. 1991 MIDSILK TEST HUSK** HARVEST 1989-91 1990-91 WEIGHT COVER MOISTURE PCT. PCT. PCT. MQJ LB./BU. RATING PCT. 5.3 0 0 5-28 54.1 3 20.7 2.3 0 0 5-28 54.8 3 21.1 3.0 0.5 1.0 5-28 56.2 2 19.8 1.0 0 0 5-24 54.8 2 19.6 8.3 2.0 0 6-1 55.4 3 19.6 0.7 0 0 5-29 54.2 2 19.6 4.3 0 0 5-26 54.3 3 17.9 2.7 0 0 5-31 55.6 2 20.2 2.3 0 0 5-25 55.6 2 18.1 53 0 0 5-29 54.3 3 20.8 1.7 0.5 0 5-28 56.2 3 19.8 2.3 0.5 1.0 5-29 55.3 3 19.9 3.0 0 0 5-25 54.9 2 19.2 0 0 5-27 55.2 3 18.4 - 0 0 5-23 56.2 3 18.8 0 0 5-26 54.4 3 20.0 0 5-24 54.2 3 21.5 - - 0 5-24 55.0 3 19.3 - - 0 5-26 50.0 3 19.3 - - 0 5-24 54.9 3 17.9 - - 0 5-25 55.1 2 18.3 - - 0 5-24 55.0 3 19.2 0 5-27 54.6 3 18.9 0 5-26 54.0 3 19.0 - - 0 5-25 54.8 3 19.0 - - 0 5-24 56.3 2 18.4 - - 0 5-28 55.8 3 19.3 - - 0 5-26 54.9 3 19.5 - - 0 5-24 54.0 3 18.5 - - 0 5-23 54.7 2 18.5 - - 0 5-23 55.5 3 18.1 ---- . . -- - -- A & A% ' TABLE 18. CHARACTERISTICS OF CORN HYBRIDS TESTED ONE YEAR IN PRELIMINARY TEST AT FAIRHOPE IN SOUTHERN ALABAMA, 1991 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 X0726 108 0 3 5-26 54.5 18.2 SUNBELT 1803 103 0 3 5-22 55.7 17.4 UAP 8105 101 0 3 5-27 55.0 19.1 PIONEER 3394 97 0 3 5-22 53.9 17.4 HY PERFORMER HS9704 91 0 3 5-24 56.3 17.1 DEKALB DK 689 ** 91 0 3 5-26 55.7 18.0 AGRATECH X1900 89 0 3 5-27 56.4 18.4 HY PERFORMER HS9592 85 0 2 5-22 56.9 17.1 NC+ 7304 84 0 3 5-26 56.6 16.9 NORTHRUP KING N7816 83 0 3 5-24 56.0 17.4 PIONEER X0813 78 0 3 5-27 55.6 18.3 DEKALB DK 743 78 0 3 5-26 53.6 19.5 PIONEER 3165 ** 76 0 3 5-30 55.7 18.4 UAP 8116 73 0 2 5-27 56.0 17.4 NORTHRUP KING N8318 73 0 2 5-22 53.3 17.7 UAP 8344 71 0 2 5-23 56.1 16.9 ZIMMERMAN Z 36 68 0 3 5-28 57.2 17.1 DELTAPINE 6111X 67 0 2 5-26 56.5 18.0 AGRATECH X1725 65 0 3 5-27 55.3 17.2 DELTAPINE 4581 64 0 3 5-26 55.6 17.4 PIONEER 3320 64 0 2 5-26 55.1 18.7 FFR 45240 63 0 3 5-28 52.3 19.0 UAP XP8309 62 0 3 5-26 54.7 17.4 UAP 8290 60 0 3 5-26 56.1 16.4 JACQUES 8410 55 0 3 5-26 57.0 16.5 HY PERFORMER HS-60 55 0 2 5-27 55.4 17.1 CARGILL 7997 55 0 3 5-27 55.4 16.5 NC+ 8410 54 0 2 5-29 54.7 17.8 DELTAPINE 7056X 52 0 2 5-28 56.2 17.9 AGRATECH 1177 45 0 2 6-6 53.8 18.5 TEST AVERAGE 73.5 L.S.D. (.05) 35.2 C.V. (M) 34.1 * 1= EXCELLENT; 5= VERY POOR. ** STANDARD HYBRIDS FOR COMPARISON. -26- VIRAL DISEASE REACTIONS OF SOME HYRIDS IN 19912 The most prevalent viral diseases of corn in Alabama are maize chlorotic dwarf (MCD), caused by the maize chlorotic dwarf virus (MCDV), and maize dwarf mosaic (MEM), caused by the maize dwarf mosaic virus (MEMV). Discovery of MEM in the State dates back to the early 1960's, while MCD has been recognized since 1973. Both diseases probably occur throughout Alabama; however, they generally have been more prevalent and damaging in the northern two-thirds of the State. Symptoms of the two diseases are similar in appearance and sometimes difficult to distinguish. Generally, affected plants are chlorotic or discolored and may be stunted. Leaves of MEM diseased plants show an irregular, light and dark green mosaic or mottle; the initial symptom of MCD is a fine, chlorotic streaking over the smallest veins. The causal viruses are spread by feeding activities of insects. MCDV is transmitted by certain leafhoppers, and MIIV is carried by some aphids. Both viruses have similar host ranges among a variety of wild and cultivated grasses. Johnsongrass is an important overseason or reservoir host for the viruses, and MCD and MM incidence and damage usually are high in corn fields that are heavily infested with johnsongrass. Use of resistant or tolerant corn hybrids and the control of johnsongrass or avoidance of johnsongrass-infested areas are the most practical control for MCD and MElM. Commercial and experimental hybrids are evaluated yearly to identify resistant hybrids or promising sources of resistance to the diseases. Results of evaluations of some commrcial hybrids during 1991 are summarized in this report. 2Prepared by Robert T. Gudauskas, Professor of Plant Pathology. -27- Procedure Viral disease ratings were made on entries in the corn hybrid test at the Prattville Experiment Field, Prattville, the Black Belt Substation, Marion Junction, the Sand Mountain Substation, Crossville, and the Tennessee Valley Substation, Belle Mina. Plants showing symptoms of MCD and/or MM were counted, and data are reported as percent incidence of the diseases for each hybrid. Results Levels of MCD were generally higher than in recent years, most notably in the tests at Marion Junction and Belle Mina; MEM incidence was relatively low at all locations. Incidence of MCD and MEM among hybrids in the two tests in central Alabama ranged from 0 to 12 percent and 0 to 4.2 percent, respectively. Several hybrids in both tests showed no symptoms of either disease. In tests at the two northern locations, incidence of MCD ranged from 0 to 16.1 percent, and from 0 to 7.0 percent for MM. Again, a number of hybrids showing no symptoms to either disease were apparent in both tests. Hybrids showing relatively greater resistance or tolerance were apparent at all locations. Under conditions of higher or lower incidence of virus diseases, hybrids would be expected to retain their relative ranking. When selecting a hybrid, virus disease reactions should be taken into account for areas where the diseases are known or suspected to occur, along with considerations of yield and other characteristics given elsewhere in this report. -28- Table 19.o INCIDENCE OF MAIZE CHLOIP2rIC DWARF VflJS DISEASE IN REGUTIAR CORN HYRID TESTIS, 1991 Brand name Hybrid Crossville Marion Junction Prattville Belle Mina July 26 June 27 June 27 August 2 AgraTech AgraTech AgraTech AgraTech AqraTech AgraTech AgraTech AgraTech Asgraw Asgrcw Cargill Cargill DeKalb De~alb De~aib De~aib DeKaib Deltapine Deltapine FER FFR FFR FFR Hy Performer Hly Perforer Hly Performer Hly Performer Jacques Jacques Jacques Jacques Mcurdy NC+ Northup King Northrup King Nrthrup King Northrup King Northrup King Northrup Kingj Pioneer Pioneer Pioneer 757 825 888 891 1177 GK 900 GK 927W 917 W IRX 9 11 RX 947 7997 9027 DK 643 DK 649 DK 677 DK 689 DK 715 DK 789 DP 5750 G-4666 793C 934C 16847 45240 HS-60 HS-97 HS-9773 HS-9911 8210 8410 8510 9220 7777 7507 M4crair 508 N8727 PX 7 9 PX 9540 S8505 S8645 3085 3140 3142 Continued -29- 0 3.8 0 0 0 0 0 0 0 0 0 0 0 0 0 3.8 0 0 0 2.0 0 0 0 2.0 0 0 3.8 0 2.3 8.2 4o4 3.4 893 3.8 7.3 0 2.1 4.4 2.2 4.0 2.0 4.9 0 2.1 6.3 2e2 4.4 99.5 7.91 0 2.1 0 2.0 4o7 8.0 0 0 1.8 0 0 3.6 0 0 1.8 0 5.4 1.9 0 396 0 1.9 0 3o6 0 1.8 0 3.9 0 1.9 3e8 1.8 1.9 1.8 11.8 0 9.3 0 0 5.3 3.8 5.5 1.8 1.8 7.0 5.5 1.8 3.8 1.8 14.0 0 0 Table 19 (Continued). INCIDENCE OF MAIZE CHOIOROTIC DWARF VIRUS DISEASE IN REGULAR CORN HYBRID TESTS, 1991 Brand name Hybrid Crossville Marion Junction Prattville Belle Mina July 26 June 27 June 27 August 2 Pct. Pct. Pct. Pct. Pioneer 3154 0 1.9 0 Pioneer 3165 3.8 0 1.9 4.0 Pioneer 3180 0 - - .9 Pioneer 3320 0 - 3.8 16.1 Sunbelt 1802 3.8 - 0 0 Sunbelt 1827 0 0 5.6 Sunbelt 1860 - 2.2 0 Sunbelt 1876 0 12.0 0 2.0 Sunbelt 7400 - 8.2 - - Sunbelt SB 1839 - - 2.0 - Terra TR 367E 0 - 0 3.5 Terra TR 1170 0 - 0 5.8 Terra TR 1180 0 4.4 1.8 5.5 Terra TR 1190 0 4.8 0 3.8 Zimerman Z 20 1.9 - 2.0 0 Zimmrman Z 27 0 - 0 1.9 Zimmerman Z 38 0 - 0 1.9 -30- Table 20. INCIDENCE OF MAIZE DWARF MO)SAIC VflWJS CORN HYBRID TEEST[S, 1991 DISEASE IN REGULAR Brard name Hybrid Crossville Marion Junction Prattville Belle Nina July 26 June 27 June 27 August 2 Iftt.A R?.o pct 0 Pct. AgraTech AgraTech AgraTech AgraTech AgraTech AgraTech AgraTech AgraTech Asgrw Asgrow Cargill Cargill De~ab De~Ib Deltapine FeRtpn FFR FER FFR HFRfrr Hy Perforer Hy Performer Hy Perfonrme Jacques Jacques Jacques Mcur-dy NC+ NorthrupKing Northrup King Northrup King Northrup King Northrup King Northrup King Pioneer Pioneer Pioneer 757 825 888 891 1177 GK 900 GK 927W 917 W RX 911 RX 947 7997 9027 DK 643 DK 649 DK 677 DK 689 DK 715 DK 789 DP 5750 G-4666 793C 934C 16847 45240 HS-60 HS-97 HS-9773 HS-9911 8210. 8410 8510 9220 7777 7507 Mcnair 508 N8727 PX 7 9 PX 9540 S8505 S8645 3085 3140 3142 Continued -31- 0 0 0 0 0 0 0 5.7 0 0 0 0 2.0 0 1.9 1.9 0 0 3.7 2.0 0 0 0 0 0 0 0 0 0 0 2.2 0 2.1 0 0 0 4.2 0 0 0 0 2.4 0 0 0 0 0 0 0 0 2.1 0 0 2.3 2.0 0 0 0m 0 0 0 0 0 0 0 0 0 0 0 0 1.8 0 0 0 0 1.8 1.7 3.9 0 0 3.8 0 0 0 3.6 0 5.6 0 3,5 0 3.6 1.8 0 3.5 0 0 0 3.6 7.0 0 0 Table 20 (Continued). INCIDENCE OF MAIZE DWARF MOSAIC VIR S DISEASE IN REGULAR CORN HYBRID TESTS, 1991 Brand name Hybrid Crossville Marion Junction Prattville Belle Mina July 26 June 27 June 27 August 2 pate.-Pct. Pct. rct. Pioneer 3154 0 - 0 0 Pioneer 3165 0 0 3.7 0 Pioneer 3180 0 - 0 Pioneer 3320 0 - 0 3.6 Sunbelt 1802 0 - 0 0 Sunbelt 1827 6.0 - 0 3.7 Sunbelt 1860 - 0 0 Sunbelt 1876 0 2.0 0 0 Sunbelt 7400 - 2.0 Sunbelt SB 1839 - - 0 Terra TR367E 0 - 0 0 Terra TR1170 1.9 - 0 0 Terra TR1180 0 0 0 3.6 Terra ?TR1190 0 2.4 0 5.7 Zi mmrnan Z 20 1.9 - 0 0 Zie menn Z 27 0 - 1.8 0 ziommenmn Z38 0 - 0 0 - 32- Table 21. Growirq Semason Rainfall, 1989-91 Monthly-rainfall (inches) 7-lmofth Test location Year Mar. Apr. May June July Aug., Sept. total Belle Mina 1991 8.0 9.0 9.5 1.8 2.1 2.0 3.7 36.1 crossville Winfield Tallassee Shorter Prattville Marion Junction Monroeville Brewton Fairhope 0%0-%aand 1990 1989 1991 1990 1989 1991 1990 1989 1991 1990 1989 1991 1990 1989 1991 1990 1989 1991 1990 1989 1991 1990 1989 1991 1990 1989 1991 1990 1989 1991 1990 1989 1991 1990^ 8.0 5.6 5.6 7.4 5.8 4.8 6.9 5.0 7.5 11.7 7o3 10.09 9.5 5.5 10-0 1 7.1 3.8 9.9 7.3 6.9 8.2 5.3 7.2 90 7.0 5.7 12.9 8.3 4.9 10.4 4.3 9.4 4.3% 4.5 3.2 6.2 3.4 3.3 14.8 3.2 3.8 3.1 2.8 7.3 3. 2o9 7.0 5.1 1.6 6.0 6.1 4.5 5.5 6.8 3.0 4.2 5.5 4.5 8.2 5.0 3.8 4.6 901 2.5 29 3o3 2.1 13. 45. )5o 3.9 4.99 4.1 3.4 15.0 7.2 4.5 493 4.1 5.3 )CS 4.6 3.5 11.7 4.8 3o2 8.1 5.0 1.9 11.2 6.4 2.1 12.4 6.3 3.6 11.9 8.8 8.0 13.08 4.9 7.0 S88 3.5w 3.9 13.5 5.5 3e5 8.3 4.5 7.3 8.3 4.2 2.0 13.7 6.4 1.7 14.4 5.4 1.6 10.7 3.3 1.6 9.3 2.8 1.5 10.3 5*7 0.m7 13.4 8.6 1.5 11 *3 5.9 6.2 18.5 3.1 2.7" M5e93.8 65.1 2.9 2.0 9.1 1.9 3.1 7.3 9.0 2.8 7.5 2.7 2.0 9.00 3o8 6.1 8.1 4.3 3.5 5.7 596 1.5 7.4 6.9 5.3 7.3 7.0 3.5 4.8 8.6 5.8 8.9 5.8 3.2 0 192 2.8 3.1 2.0 1.8 2.9 2.1 3o3 4.3 1.3 197 3.8 2. 1.9 2.9 1.3 100 3.9 0.8 1.3 1.9 2.9 1.9 6.8 2.3 1.7 3.6 3.6 2.1 6.7 0.09 292 5.6 4% 11. 1.5 3.8 3.2 3.9 8.9 3.1 2.7 5.7 2.5 193 3.3 1.8 2.1 5.8 2.6 0.3 2.0 2.9 0.7 1.5 2.8 2.v9 3.7 2.0 1.8 495 2.4 1.5 494 3.1 1.6 00.8 2.7 0.8a 279 37.9 31.4 26.3 40.6 47.0 25.5 37.9 34.9 25.0 46.1 31.7 26.6 51.1 37.0 25.8 38.1 32.4 26.0 32.5 38.0 25.6 35.9 46.5 299*8 45.7 45.2 35.6 43.5 52.1 32.3 44.6 38.7 1 7.4 - 33- ~~IIL~LL-I 1 ~r(3 IlrL LrC3 SCXJRCS OF 1991 CORN HYBRID TE SEEDFF See CbwaY Brand SeedOny AgraTech Seed, Inc. 5559 N. 500 W. McCordsville, IN 46055 Alabama Farmers Cooperative, Inc. P.O. Box 2227 Decatur, AL 35602 Asgrw Seedco 7000 Portage Road Kalamazoo, MI 49001 Cargill Hybrid Seeds Box 5645 Minneapolis, MN 55440 E~abPlant Genetics 3100 Sycamore Road DeKaib, IL 60115 Delta and Pine land Co . P.O. Box 157 Scott, MS 38772 Dixie Ag. Supply P.O. Box 534 Athens, AL 35611 FFR Coopraive 4112 E. State Road 225 W. Lafayette, IN 47906 Garst Seed C any Rto 3 Box 93 Bowling Green, MO 63334 AgraTech FER Asgrc Cargill Delaib Deltapine UAP Garst Hy Performer Seed Co. 5100 Poplar Ave. Mexrphis, 'ITN 38137 Jacques Sedco. 720 St. Croix St. Prescott, WI 54021 Mc~urdy Seed Co . 522 East Main St. Fremovnt, IA 52561 NC + Hybrid Box 4408 Lincoln, NE 68504 Northrup King Co. 705 Woodbridge Dr. Somerville, TIN 38068 Pioneer Hi-Bred Int. 1000 W. Jefferson St. Tipton, IN 46072 Super Crost Seeds P.O. Box 67 Kentland, IN 47951 Terra International , Inc. P.O. Box 171376 l~ertisrIN 38187 Ziirmerinan Hybrids, Inc. 5147 W. Franklin Rd. Evansville, IN 47712 Hy Perforer Jacques NC+ Northrup King Pioneer Sunbelt Terra Zluerman - 34-. Brand ACCEPTABLE HYRIDS FOR 1992 All of the acceptable hybrids are not equal in performance. It is suggested that this report be carefully studied before dchoosing a hybrid. For relative maturity information, use the days to midsilk data in preceding tables. Unless otherwise noted, all acceptable hybrids have been tested at least 3 years in the tests and are listed in descending order of 3-year average yield. NORTHERN AIABAMA Yellow hybrids White hybrids Early hybrids+ Brand name Hybrid Brand name Hybrid Brand name Hybrid Pioneer 3140 zinmerman Z 54 W Zimerman Z27 Pioneer 3165 Deltapine G-4644 W *Sunbelt 1802 NC + 7507 Hy Performer HS 175 W Zimterman Z 38 Zimmerman Z 27 Zimmnerman Z 16 W AgraTech 825 Deab DK 689 Pioneer 3144 W *AgraTech 888 Zimmerman Z 38 *Zimmerman Z 14 W *Deltapine DP 5750 Terra TR 1180 *Zimmrman Z 17 W **Pioneer 3245 Pioneer 3320 Pioneer 3295 Deltapine G-4666 Sunbelt 1827 Sunbelt 1802 **Zimmean Z 20 Northrup King S8645 Sunbelt SB 1839 AgraTech GK 900 DeKalb DK 649 **Northrup King S8505 *If present trends continue, this hybrid will be removed fromn the acceptable list next year in the category indicated. **Rec muended based on exceptional 2-year average. + Early hybrids listed in order of maturity Cn!a AOCEPTABLE HYERIES FR 1992- (continued) CENTRVAL ALABAM Yellow hbids White hbrids Early hybrids+-- Black Bl Brand namwe Hybrid Branrd name Hbid Brand name Hyri-Band name Hbi McCurdy 7777 Ziimin;;zaw~n Z 54 W Sunbelt 1802 P ioneer 36 Jacques 9220 z n~mn Z 17 W Zimo nZ 27DeKalbDK8 Deltapine DP 5750 ziirna Z 14 W Deltapine DP 5750 De~aib D 8 DeKaib DK 689 Hy Performer HTS 17 5 W Sunbelt 1827 Jacques 92 Terra TJ1 1180 *Ziinra Z 16 w **Pioneer 3245 McCurdy 77 Deltapine G-4666 **Zin~ra Z 63 W Deltapine G-4666 Sunbelt 16 Terra TR 1190 Sunbelt SB 1839 Sunbelt 1802 AgraTech 888 Pioneer 3320 Deaib DK 649 Jacques 8210 Sunbelt 1860 *Zimx~onZ 27 *if peet -rns continue, this hybrid will be raxved frcrn the acceptable list next year inth category indcated. **Pecommmelnded based on e- ep Ica 2-year average. +Early hybrids listed in order of maturity. IA AC'CEPrABLE HYIDII FO)R 1992 (continuel) SOUTHEN AABAMA Yellow -hybrids WhihyridEslyhvri Brand nrkm Hybrid Bramn re HyMbrid Braid name ybi eIb DI( 689 znnira Z 16 W z henneran Z3 McCurdy 8181 Pioneer 3144 W zinnermnZ2 McCurdy 7777 ZinTuerman Z 14 W Sunbelt S13 Sunbelt 7400 Deltapine G-4644W DeltapineDP50 Jacques 9220 Znena Z 54 W *Sunbelt 12 Terra 'R 1180 **Zl iryl M Z 63 W Sunbelt 1860 Sunbelt 1802 NC + 7507 Sunbelt 1827 Northrtp KirM S8645 *NoJthnp KiM Mc~?~air 508 *Sunbelt 1876 *ZinrirxnanZ 27 *De~albDK(789 *if pesn trerls conitinue, this hybrid will be reroved frcu the acpble list next year inth category indicated. **Peccimneiyel based a o xcpional 2-year average. +Early hybrids listed in order of maturity. CA)