IR~0IRMANCE O COK N AIYB4ID? IN AL AB AM A, Agronomy and Soils Departmental Series No. 113 Alabama Agricultural Experiment Station Lowell T. Frobish, Director Auburn Univeityi December 1986 Auburn University, Alabama C-- -- b :: ::: .:Z ; l 1.a 84 :, w TABLE OF CONTENTS Page INTRODUCTI ON............................. .......... * 5 ACKNOWLEDGMENTS ........ ......................................... .. 8 Table 1. Locations and Cultural Practices for the 1986 Corn Hybrid Tests ........... 9 NORThERN ALABAMA Table 2. Two- and Three-Year Yield and Lodging Averages for Northern Alabama, 1984-86..........................10 Table 3. 1986 Yield of Corn Hybrids by Location and Regional Averages of Hybrid Characteristics in Northern Alabama.. .......... .................... 11 CENTRAL ALABAMA Table 4. Two- and Three-Year Yield and Lodging Averages for Central Alabama, 1984-86............................... 12 Table 5. 1986 Yield of Corn Hybrids by Location and Regional Averages of Hybrid Characteristics in Central Alabama.. 13 SOUTHERN ALABAMA Table 6. Two- and Three-Year Yield and Lodging Averages for Southern Alabama, 1984-86.......................... 14 Table 7. 1986 Yield of Corn Hybrids by Location and Regional Averages of Hybrid Characteristics in Southern Alabama.. 15 BLACK BELT Table 8. Black Belt Corn Hybrid/Virus Test 1984-86 ............... 16 VIRAL DISEASE REACTIONS OF SOME HYBRIDS IN 1986................... 17 MrondunctionJuly10.198.......................... 20 eltse.ina,.July31,...986............................ 1 IRRIGATED TEST Table 12. Irrigated Corn Hybrid Performance and Characteristics, Headland, 1984-86...... .. ............ . . . .. 23 WHITE CORN Table 13. White Corn Hybrid Test, Northern Alabama, 198486....... 24 Table 14. White Corn Hybrid Test, Central Alabama, 1984-86..... 25 Table 15. White Corn Hybrid Test, Southern Alabama, 1984-86..... 26 EARLY CORN Table 16. Early Corn Hybrid Test, Northern Alabama, 1984-86......27 Table 17. Early Corn Hybrid Test, Central Alabama, 1984-8628 Table 18. Early Corn Hybrid Test, Southern Alabama, 1984-86 29 PREL IMI NARY TESTS ........................... . ..... 3 Table 19. Characteristics of Corn Hybrids Tested One Year at Crossville in Northern Alabama, 1986.................... 30 Table 20. Characteristics of Corn Hybrids Tested One Year at Tallassee in Central Alabama, 19 86.......31 Table 21. Characteristics of Corn.Hybri ds Tested One Year at Fairhope in Southern Alabama, 1986 .............. 32 SOURCES OF1986 COR NHYBRID TE TE STSED........................ 33 ACCEPTABLE HYBRIDS FOR 1 987 . .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . ... 34 as4- PERFORMANCE OF CORN HYBRIDS IN ALABAMA, 1986 W. C. Johnson and D.L. Thurlow INTRODUCTION Corn hybrids are evaluated annually by the Alabama Agricultural Experiment Station in the Regular Corn Hybrid Test and the Preliminary Corn 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 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 complete block with four replications. Row width was 30 to 36 inches depending on location. Two-row plots were used, with row 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. Grain yields were adjusted to 15.5 percent moisture and converted to bushels (56 pounds) per acre. Stalks broken or leaning more than 45 1 Respectively, Professor and Associate Professor of Agronomy and Soils. -5- 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. The corn hybrid tests are examined for disease incidence each year by R.T. Gudauskas, Professor of Plant Pathology. When virus or other disease symptons indicate crop damage, disease ratings are compiled and published in this report. Virus infection data from the test at Marion Junction are reported this year along with virus infection ratings from Belle Mina and Winfield. 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 1986 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 for variability. Since the performance of hybrids varies with location and year, long-term averages from several locations are more reliable than 1-year performance. Three-year regional averages are considered a reliable evaluation of the relative performance of hybrids. -6- A committee comprised of Department of Agronomy and Soils and Alabama Cooperative Extension Service personnel involved in corn research reviewed the past 3 years of corn hybrid test data to assemble the list of acceptable hybrids on page 34. The recommended hybrids are not all equal in performance. Some are outstanding in one or more characteristics; while others may not be obviously outstanding, they might possess a satisfactory combination of all characteristics. ACKNOWLEDGMENTS 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. Northern Alabama Tennessee Valley Substation, Belle Mina- W. B. Webster, V.H. Calvert, II Sand Mountain Substation, Crossville - J. T. Eason, M.E. Ruf Upper Coastal Plain Substation, Winfield- R. A. Moore, Jr. Central Alabama Black Belt Substation, Marion Junction - H.W. Grimes, J.L. Holliman Prattville Experiment Field - D. P. Moore E. V. Smith Research Center, Shorter - W.B. Gordon Plant Breeding Unit, Tallassee - S. P. Nightengale Southern Alabama Brewton Experiment Field - J. R. Akridge Monroeville Experiment Field - J. R. Akridge Gulf Coast Substation, Fairhope - E. L. Carden, N.R. McDaniel, M.D. Pegues Wiregrass Substation, Headland - H.W. Ivey, L. Wells Appreciation is also expressed to the following people: W. H. Hearn and Mrs. Sally Bagwell, Research Data Analysis, for the computation, summarization, and analysis of the data in this report, R. T. Gudauskas, Professor and Acting Head of Plant Pathology, for making virus ratings and the virus disease reactions in this report. TABLE 1. LOCATIONS AND CULTURAL PRACTICES FOR THE 1986 CORN HYBRID Planting Nitrogen Plant Date Herbicides Location date rate Population harvested used Northern Alabama Tennessee a eSubstation (Belle IMina) Sand Mountain Substation (Crossville) Regular test Preliminary test White corn test Early corn test Silage corn test Upper Coastal Plain Substation (Winfield) Central Alabama rYithW1Reearch Center (Shorter) Early corn test White corn test Plant Breeding Unit (Tallassee) Prattville Experiment Field (Prattville) Black Belt Substation (Marion Junction) April 1 April 10 April 11 April 18 April 2 April 28 March 27 April March March March Marc h 150 150 150 150 150 150 160 120 120 120 120 120 12 11 25 25 11 20,000 September 8 Atrazine 20,000 20,000 201,000 20,000 20,.000 20,000 20,000 20,000 20,000 20 ,000 20,000 Southern Alabama Brewton Experiment Field (Brewton) March 5 125 20,000 Monroeville Experiment Field (Monroeville) Regular test March 27 120 20,000 Date of Planting 1 March 6 120 20,000 Date of Planting 2 March 28 120 20,000 Date of Planting 3 May 2 120 20,000 Lower Coastal Plain Substation (Camden) March 24 150 20,000 Wiregrass Substation (Headland) Regular test (umirrigated) March 25 120 20,000 Regular test (irrigated) March 25 200 25,000 White corn test (irrigated) March 25 200 26,000 Gulf Coast Substation (Fairhope) Regular test March 10 150 20,000 Preliminary test March 11 150 20,000 Early corn test February 21 150 20,000 August 26 September 8 September 26 August 25 August 25 August 21 July 30 July 31 August 29 September 8 August 7 Atrazine Atrazine Atrazine Atrazine Atrazine Atrazine + DualI + Dual + DualI + Dual + Dual Atrazine + Dual Atrazine + Dual None Atrazine Atrazine + Paraquat August 1 Atrazine September 5 September 8 September 8 September 8 August 27 August 4 August 25 September 8 August 7 August 8 August 7 Atrazine Atrazine Atrazine Atrazine Atrazine + Sutan Atrazine Atrazine Atrazine + Lasso + Lasso + Lasso Lasso + Bladex Lasso + Bladex Atrazine + Lasso 11 Pound perII acre~LU I N.~IUI Lime, III phosporus poasim zic n ufrwreapidacrig orceuedto based on soil test. I tO 1 applied according to reconlnenda t i onZinc, and sulfur were TABLE 2. TWO- AND ThIREE-YEAR Y KELp ANt) LODGING AVERAGES FOR NORThIERN BRAND NAME-tIVOIR I) 3--YR. 2-YR. 3-YR. 2--YR. PIONEER 3165 139 139 1.9 2.3 PIONEER .3147 135 135 4,.1 5.7 PIONEER 3320 133 1.34 3.6 4.3 PIONEER 3187 120 133 2.9 3.7 NORTHRUP KING PX 95 128 132 3.9 5.3 JACQUES 8400 124 125 3.6 4.7 ASGROW/O'S GOLD '2510 124 123 5.0 6.1 MCCURDY 8150 124 125 3..? 4.5 JACQULS JX 247 123 120 b.6 9.0 FUNKS G-4133 123 123 2.6 3.-1 PAYMASTER 8990 122 123 3.4 4.3 FUNKS G-4522 122 124 3.8 4.8 NORTH-RUP KING PX 9581 121 120 5.1 1.2 FUNK'S RING AROUND 1 502 120 121. 4.1 5.5 ASGROW/U'S GOLD 5509 120 119 4.8 6.5 MCCURDY B4AA 120 119 4.7 5.6 CIJKER 21 119 138 4.8 6.3 CUJKER 19A 119 121 3.2 4.5 Z IMMERMAN 1 27 Y - 136- 6.3 PIONEER 3055 -1.36 - 2.5 MCCURDY '8172 -135 -6.2 SUNBELT 1860 130 - 3.2 PAYMASTER 7990- 125 - 4.5 AGRATECH GK 850 124 3.5 SUNBEL T 1802 12 3- 4.2 SUNBELT 1827- 120- 6.2 STAUFFER S 1759- 119 5. -BELLE MINA, CR0SSVILLEt AND WINFIELD. 0 TABLE 1. 1986 YIELD OF CORN HYBRIDS BY LOCATION AND REGIONAL AVERAGES Uf hYBRID CHARACTERISTIC 28 BIU~l~~fG~l0AL_LI1AAL DRANO) NAME-IIYIDID()ELLIE MINA CROSSVILLE WINFIELD YIELD LODGED TEST- . MID-rrwrw~rw~r-..ww ------------------------------------------------ lu' EI*. Lf&LK U.aLI. DEKALII UK 689 136 106 126 123 2.? 55.8 61 PIONEER 3165 130) 109 112 117 2.3 56.2 62 DE1(A1B DK 189 130 99 I11 115 4.0 55.3 61 ZIMMERMAN Z 27 Y 144 95 104 115 7.3 55.1 62 PIONEER 3187 121 96 125 114 3.0 55.9. 61 PIONEER 3147 117 91 124 112 5.0 53.2 62 FFR 811 118 114 104 112 4.0 .54.7 61 FFR 815 117 101 117 112 2.1 55.9 61 MCLURDY 8112 142 91 91 110 8.0 57.2 62 PIONEER 3320 121) 114 95 110 4.? 57.1 61 PIONEER 3055 121 95 103 108 2.7 56..3 62 JACQULS 8400 125 $.44 96 108l 6.3 57.9 -1 PAYMASIER 8990 120 105 87 104 5.3 51.1 61 FUNKS 6-4733 125 92 92 103 4.0 51.2 61 FUNKS G-4522 117 110 77 101 6.? 56.0 61 STAUfIrER 571759 111 101 86 101 5.? 55.9 61 ASGROW/O" GOLD 2510 116 100 8? 101 9.7 55.3 61 FUNKS 6-4868 111 91 99 100 3.3 54.4 62 AGRATEEII 6K 850 113 101 82 100 5.3 56.0 61 AGRATECH 6K 900 108 100 92 100 4.3 58.0 61 PAYMASTER 1990 125 103 72 100 1.0 54.1 61 NORTHRUP KING PX 95 121 8i 94 100 7.3 55.i 6 SUNBELT 1860 103 101 95 100 4.3 56.5 62 COKER 8905 105 81 106 99 3.3 54.9 62 MC;CURIJV 8150 1 35 85 17 99 6.3 56.6 61 JACQUES JX 247 129 92 76 99 9.7 56.0 62 FUNKS 6-;-4134 118 92 86 99 s5.7 s7.0 61 COKER 19A 1017 94 94 98 6.1 55.4 61 OEKALB OK 748 129 91 73 98 1.7 55.2 62 JACQUES 8700 127 8? 75 96 4.1 56.1 62 ASGROW/U'S GOLD 5509 123 96 69 96 7.0 56.0 62 NORt HRUP KING PX 9581 116 94 13 94 9.7 55.6 61 MCCURDY 84AA 114 101 68 94 5.3 56.8 61 FUNK'S RING AROUND 1502 121 96 58 92 7.7 55.6 61 COKER 21 123 90 63 92 7.1 55.1 62 FFR 901 128 90 58 92 4.3 56.9 6-) AGRATECH 6K 925 11t3 86 70 90 6.3 55.8 62 SUNBELT 1802 101 103 56 89 5.7 56.1 61 SUNBELT 1827 128 79 58 86 6.7 56.4 62 PAYMASTER 9990 105 84 13 87 4.1 54.3 62 -- r------- -- -- -- -- - -- -- ---------------w"Yr~Mrr"rY~wr~ wMrr~y /i--r--- ---------- TEST AVERAGE 121).? 96.6 87.7 L.S.D. 4.05) 16.4 12.9 23.0 Car L Llw------------------------------------------------------------------iaa-------------------------.+w.: rr-r rr.wwr~r 1- I r I I I I I TABLE 4. TWO- ANU TH1RiE-Y1EAR Y Iaq 1 AND LODGING AVE~RAGES FOR CENTRAL .YLLQ.P.ft L1LAYSL I1l Qi A&L~.Y BIRAND NAML-HYIIRII) 3-YR. 2--YR. 3--YR. 2-YR. PIONEER 3320 83 73 13.2 17.8 PIONELER 3165 81 78. 10,.2 10.8 JACQUES 8400 17 67 10.5 15.0 PIONEER .3147 15 64 .10.1 13.0 ASGROW/O'S GOLD 2510 14 64 16.5 22.5 MCCURDY 8172 13 67 8.3 11.5 MCCURDY 8150 68 58 14.7 21.0 NORTHRUP KING PX 9581 68 58 12.8 16.5 ASGROW/O' S GULL) 5509 65 56 16.0 22.0 FUNKS G-4733 65~ 58 1.2 10.3 FUNK'S RING AROUND 1502 64 52 11.1 16.0 JACQUES JX 247 63 54 16.5 23.3 FUNKS G-4522 62 5i4 14.5 20.3 MCCURDY 84AA 62 51 16.5 22.3 PAYMASTER 8951 62 49 15.7 22.3 COKER 21 61 52 15.0 21.0 PA YMAS TER 8990 57 44 12.3 17.5 COKER 19A 57 42 17.5 25.5 SUNBELT 1876. 70- 11.0 ZI MMERMAN 1 27 Y- 64- 15.3 SUNBELT 1860 63 - 10.0 PIONEER 3055 SUNBELT 1802 AGRATECHI GK 850. FFR 811 SUNBELT 1827 PAYMASTER 7990 STAUFFFR S 7159 P--A-G SX 383 61 56 55 53 52 51 51 49 16.3 19.8 15.8 23.0 26.3 27.0 14.3 24.3 w h?1P RA ITTV -l lE, CA MQLN.* N- TABLE i. 1906 YIELD OF CORN IYBRIUS BY LOCATIOIN AND REGIONAL AVERAGES Of 41Y8R11) C1ARACTERISIIC ----- ---- --- ------------------------ r rr ----------------------------------------------------------------------- Yrw~ +w i-------- ----- +~Y r+r I2__14lRLUNAUdL.AY~L&&1LS .. BRAND NAML-.IIwRIUI PRAITVILLI CAMDEN YIELD LODGED TEST tl) .rrg .y~~r .rr .w .. rrr r .- - - - - - - - - - --r- ~ r r w~w r rr ... w rrwi r~r . M.A g . . rr&~ t~ r __ ._ ___ _ _h __ _ _ 1105 Lia U 4 UU .UA AGRATECN GK 850 60 87 73 1.0 46 65 ASGRUW/0S GOLD 2570 61 84 72 4.5 544 61 SUNBELT 1802 66 18 12 4.5 .4 61 JACQUE S 640. 64 79 71 2.5 526 68 QLKAL8 OK 689. 66 76 71 8.0 .3 -8 SUNBELT 1882 59 82 11 0.5 .8 -2 PIONEER 3320 59 82 11 3.5 566 66 PIONEER 3055 63 78 t0 9.0 568 -8 NURTIIRUP KING PX 9581 63 75 69 .5.0 541 -5 LItMERMAN Z 27 Y 10 61 6U) 7.5 5.I 61 STAUIFfER S 7759 64 70 61 2.5 .4 61 PIONEER 3165 76 8 67 5.5 560 61 MCCURDY 8150 56 78 67 6.0 560 61 MCCURDOY 8172 51 17 67 4.5 78 61 SUNBEL T 1827 58 74 66 5.5 548 69 FUNK'S RING AROUND 1502 61 10 65 1.5 5.9 -6 ASGROW/O'S GOLD) 5509 49 82 65 6.0 548 69 JACQUES 8100 53 78 65 11.0 5.9 61 r. CUKER 8905 51 13 65 0 11 62 wa. FFR 815 58 13 65 1.5 531 68 ? PAYMASTER 8951 58 71 64 6.5 5.9 66 P-A-G SX 383 62 61 64 9.0 64 -8 IFR 811 58 71 64 10.5 524 66 DIKAIB I)K 7819 51 71 64 6.5 526 -1 FUNKS G-4522 55 73 64 8.0 533 61 PAYMASTER 9990 58 69 64 1.0 5.6 -2 MCCUI&Y 84AA 5 7 10 64 6.5 .1 66 PAYMASIER 7990 59 68 63 5.0 5.5 66 I-LNKS G-4860 52 14 63 4.0 534 60 DEKALII OK 748 51 69 63 6.0 25 -1 PIONEER 3147 58 67 63 3.5 49) 61 PAYMASTER 8990 55 74) 63 8.0 5.2 -8 AGRATECN GK 900 52 71 61 4.5 570 -1 FUNKS G--4733 46 75 61 5.0 568 -8 SUNBELT 1860 52 66 59 .5 5.3 61 FUNKS G--4765 55 62 59) 5.5 549 61 CIJKER 21 50 66 58 5.0 549 69 JACQUE S JX 24 7 4 3 70 .6 6.0 45 61 CIJKER 14A 49 61 55 2.0 535 61 NI)RIIIRUP KING PX 95 44 6t 55 13.0 565 -7 SUNBELT 1876 40 62 51 6.0 65 62 TES I AVERAGE 56.5 12.6 I.S.U. 1.051 X1.( 15.1 CLa~a_;L. IU___._. ___-------------------- 1a ------- -- - TABLE 6. TWO- AND 1HREE--YEAR YIELD AND LODGING AVERAGES 14U1 SOUTH1ERN BRAND NAME-HYBRID PIONEER 3L65 MCCURD Y 8172 PIONEER 3320 PIONEER 314? MCCURDY 8150 ASGROW/O "S GOLD 5509 PIONEER 3187 COKER 21 JACQUE S JX 247 JACQUES 8400 FUNKS G--4733 NORTHRUP KING PX 95 FUNK'S RING AROUND 1502 MCCURDY 84A4 PAYMASTER 8951 PIONEER 3055 FUNKS G-4614 ASGROW/U'S GOLD 2510 SUNBELT 1827 ZIMMERMAN Z 27-Y NORTHRUP K ING' PX 9581 ST AUFFER S 1159 AGRATECH GK 850 PAYMASTER 7990 P-A-G SX 383 SUNBELT 1802 FFR 811 Y1LLLeUL&A &I LAYL 3--YR. 2--YR. lU~m IIUA 91 89 92 8 90 80 89 19 88 71 87 76 85 13 84 14 82 14 82 75 81 72 81 69 80 13 19 69 18 68 Qmm 81 .000 79 -- 78 75 74 - 71 70 68 -- 68 -- 68 66 - 65 -ON. -MMOMO.Ww 3-YR. 2--YR. 1.1 1.1 2.8 2.5 1.7 2.1 2.5 2.6 3.2 4.3 2.8 3.6 .6 .8 2.9 3.3 2.3 2,68 2.*3 2.9 1.4 1.9 2.4 3.3 2.0 2.4 4.6 4.9 2.9 .3.6 - 1.8 2.8 - .3.5 .WOO3.8 - 2e.3 - 5.3 - 2.5 - 3.5 - 3.8 -- 3.1 - 5.0 - 3.3 TABLE 7. 1986 YIELD) Of1COJRNi JYBRI)S BY &LOCATIOLN AND )REGIONAL AVERAGES Uii HYBRID CiIARACILRISIIC rw r.r .r vrr r wwrw .r rr w w. rw - -- -- -r IN -UUIuU A LA RMfJA &-. w r - - -- - - - - . wrw. - -.-. w....r..- - .. .r- - .r~...r ..- - - - Y - - r -- - - - ---------------- r~ w r r BRKANL) NAME-IYIRII) FAIRIU:)PE BRLWT0N MONROEVILLE HEADLAND YIELD LODGED TEST tjj rrr..r rr.r w rr .w r __ r_ r..r.r...r+4efar .rc aIA . w. irwu L A--- -L--w. I~L ~ iU f8U 4 UUa flU. EL1, L11L11fUhr.=& ASGRO)W/EJ'S GOLD 5509 118 70 89 48 96 4.8 56.5 6- PIONEER 3165 148 118 72 45 96 1.8 56.2 6- ASGROW/O' S GOLDi 2510 165 79 75 58 94 2.5 55.3 62 tCCUIWUY 8112 154 104 81 38 9', 2.8 56.9 6- SUNBELt11827 162 19 82 49 93 2.8 55.9 6- JACQUES JX 247 1663 81 74 43 92 4..0 56.0 - PIONEER 3055 142 103 72 47 91 1.8 55.6 6- JACQUES 8700 162 76 78 48 91 3.) 56.9 6- UEKALB UK 689 162 93 63 44 91 1.8 55.3 6- PIONEER 3147 141 103 10 45 90 3.0 53.7 6- JACQUES 8400 163 84 71 41 90 2.0 57.0 6- DEKALIS OK 789 156 92 65 44 89 3.0 54.8 64 COK1ER 21 161 81 69 43 89 3.5 55.9 6- FUNKS 6-4614 143 83 71 51 89 2.8 57.4 6- PAYMASTER 9990 149 110 66 28 88 1.3 51.8 61 E KALS OK 748 160 72 78 41 88 2.0 54.5 65 MCCURDY 8150 152 15 14 49 88 5.3 56.6 62 PIONEER 3181 138 81 81 50 81 1.5 55.2 6- PTA-G SX 383 162 62 18 41 81 3.3 51.1 6- 1.I MME RMAN 1 27 Y 157 16 69 -43 86 2.0 55.0 STAUSIER S 7759 150 66 76 51 86 2.01 55.9 6- FUNK'S RING AROUND 1502 158 70 72 42 86 3.0 56.1 62 AGRAIECII GK 9UU 149 85 61 47 80, 2.3 58.2 6- FUNKS G-4733 144 89 66 42 85 2.5 56.5 6- COKER 8905 151 96 61 31 84 .. 5 54.9 61 SUNBEL 11882 144 91 63 34 84 1.3 55.5 69 PAYMASTER 8951 157 62 74 41 84 4.3 56.4 6- NORth1RUP KING PX 9,,81 148 54 75 53 84 5.3 55.3 6- NCCUI4DY 84AA 151 58 70 45 81 6.0 56.1 6- AGRAIECHt GK 850 147 61 70 45 81 3.5 i5.7 - PIUONELR 3320 13" 11 68 46 80 3.0 56.5 61 FFR 1115 121 75 64 44 71 .3 55.1 6- SUNBL 1802 119 55 65 49 71 6.0 55.5 6- NORTH11UP KING PX 95 150 10 55 32 71 2.0 55.80- PAYMAS IER 1990 l31, 49 68 39 13 3.5 53.5 6- IFR 811 130 56 51 31 70 3.3 54.6 6- ]EST AVERAGE 150.9 79.0 70.7 43.8 L. S. U. 1.051 13.0 19.9 12.8 9.4 4aa /+.rw.w.tr w. .. L114h2------lliia------1242-------J ..L1-----------------rr. .r (1 i 1 - L&~LL&CKULL------------------------------------------- B3RAND NAMIE--IVAIR ID SUNBIELT 1860 PIONEER 3141 FUNKS G-4858 ASGROWO' S GOLD 5509 MCCUkUY S4AA FFR 955 JACQUES 8400 NORIIIRUP KING PX 95 FUNKS G--4133 FUNK'S RING AROUND 1502 PIONEER 3181 ZIIMt4ERMAN 1 11 W FFR 929W ZIMMERMAN 1 21 Y DE KALII UK 189 DEKALO OK 689 FUNKS G-4734 SLEUTEC EX-918 FFR 815 FUNKS G-4179W lI MMERMAN 1 54 W GOLD) MEDAL 984 MCCUIWY 85-60 MCCWWUY 85-61 S[AUFFLR 8645 ZIMMERMAN I 3ti FUNKS 6066X AGRATECII GK( 875 NURIHRUP KING PX 715 P-A-G SX 16A FUNKS G-4868 FF8 767 GOLD MEDAL 3 357 NORThRUP KIN( , PX 19 SUNBELT 1882 COKER 8696 JACQUES 8250) MC NA IR 508 3-YR. 2-YR. 1986 112 94 69 111 94 66 108 93 62 108 92 65 104 89 60 103 85 55 102 89 62 101 91 56 94 81 40 94 77 "i 94 82 7 94 13 13 86 15 52 - 103 16 - 100 6 - 98 73 - 85 49 - 12 41 - I1 51 - 60 53 - - 80 -- - 19 -- 14 -- 66 - - 60 -- 53 - -- 52 -- - 50 -- 49 -- 48 - - 41 - - 41 - - 43 - - 39 - - 38 -- 36 - - 31 [t:SE AVERAGE 56.8 L.S.U. (.05)1.22.8 -- AR1UN JNCIIIN. SEE FALE 9 FOiR VIRUS IISIASE REACt IONS. 3--YR. 2-YR.. 1986 2.7 4.0 6.0 5.0 7.5 12.0 2.0 2.5 5.0 2.0 3.0 4.0 2.0 3.0 5.0 5.1 8.0 11.0 2.7 3.5 6.0 4.0 6.0 11.0 1.3 2.0 3.0 .7 1.0 1.0 2.1 3.5 1.0 3.7 5.0 9.0 l17 2.5 4.0 - 2.0 3.0 - 5.5 10.0 - 3.5 6.0 - 3.0 5.0 - 4.5 1.0 -- 1.0 2.0 - 2.5 5.0 -- 13.0 - 9.0 -- 4.0 --- 5.0 -- - 3.0 - -- 4.0 -- 2.0 -- - 6.0 -- 9.0 -- - 3.0 -- 4.0 - - 4.*0 - - 5.0 - 3.0 - - 8.0 - - 6.0 -- 5.0 -- - 1.0 MIOS1LK TEST -- 55.3 - 49.9 - 55.0 554.2 - 55.2 - 55.9 - 54.6 - 53.7 -- 53.8 - 52.0 - 52.0 - 54.1 - 54.3 -- 53.0 5 2.1 5521 - 55.2 - 51.7 553.6 - 54.0) - 53.5 - 55.6 - 54.8 - 51.4 - 55.1 - 56.6 - 52.0 -- 53.5 - 51.5 -- 52.1I - 55.3 - 54.6 - 51.5 - 53.1 - 53.9 - 54.4 - 53.3 1 01 1 VIRAL DISEASE REACTIONS OF SOME HYBRIDS IN 19862 The two 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 (MDM), caused by the maize dwarf mosaic virus (MDMV). Discovery of MDM 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 chiorotic or discolored and may be stunted. Leaves of MDM-diseased plants show an irregular, light and dark green mosaic or mottle; the initial symptom of MCD is a fine, chiorotic streaking over the smallest veins. The causal viruses are spread by feeding activities of insects. MCDV is transmitted by certain leafhoppers, and MDMV 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 MDM incidence and damage usually are high in corn fields that are heavily infested with johnson- grass. Use of resistant or tolerant corn hybrids and the control or avoidance of Johnsongrass infested areas are the most practical controls for MCD and MDM. Commercial and experimental hybrids are evaluated yearly to identify resistant hybrids or promising sources of resistance Prepared by Robert T. Gudauskas, Professor and Acting Head of Plant Pathology. -17- to the diseases. Results of evaluations of some commercial hybrids during 1986 are summarized in this report. Procedure Viral disease ratings were made on entries in the corn hybrid test at the Black Belt Substation, Marion Junction, the Tennessee Valley Sub- station, Belle Mina, and the Upper Coastal Plain Substation, Winfield. Plants showing symptoms of MCD and/or MDM were counted, and data are reported as percent incidence of the diseases for each hybrid. Premature drying prevented disease ratings on some hybrids at the Tennessee Valley Substation. Results At the Black Belt Substation, incidence of MDM ranged from 0 to 18.9 percent among hybrids and averaged 2.5 percent for the entire test, table 9; incidence of MCD ranged from 0 to 32.3 percent and averaged 10.5 percent for the test. Jacques brand 8250 and P-A-G brand SX 16A showed no symptoms of either disease, and incidence of both diseases was less than 5 percent in at least 7 other hybrids. At the Tennessee Valley Substation, incidence of MDM ranged from 0 to 8.6 percent among hybrids and averaged 1.9 percent for the entire test, table 10; incidence of MCD ranged from 0 to 5.8 percent and averaged 0.5 percent for the test. AgraTech brand GK 900, DeKalb brand DK 748, FFR brand 901, Jacques brand 8400, McCurdy brand 8150, Northrup King brand PX 9581, Paymaster brands 8990 and 9990, Pioneer brands 3147, 3187, and 3320, and Sunbelt brand 1860 showed no symptoms of either disease, and incidence of both diseases was less than 5 percent in at least 13 other hybrids. At the Upper Coastal Plain Substation, incidence of MDM ranged from 3.2 to 49.1 percent among hybrids and averaged 25.1 percent for the entire test, table 11; incidence of MCD ranged from 0 to 19.6 percent and averaged 4.2 percent for the test. Hybrids showing lowest incidence of both diseases included Coker brand 16A, DeKalb brand DK 789, FFR brand 815, Northrup King brand PX 95, Paymaster brand 7990, and Pioneer brand 3165. Hybrids showing relatively greater resistance or tolerance were apparent at all locations. Under conditions of higher or lower incidence of viral disease, hybrids would be expected to retain their relative ranking. When selecting a hybrid, viral disease reactions should be taken into account for areas where the diseases are known or suspected to occur, along with the considerations of yield and other characteristics given elsewhere in this report. -19- TABLE 9. INCIDENCE OF VIRAL DISEASES IN REGULAR CORN HYBRIDS TEST, MARION JUNCTION, JULY 10, 1986 Brand name Hybrid Maize chiorotic Maize dwarf dwarf mosaic Pct, Pct. AgraTech GK 875 8.6 0 Asgrow/O's Gold 5509 6.7 2.2 Coker 8696 7.3 0 DeKaib DK 689 5.1 0 DeKalb DK 789 23,4 1.6 FFR 767 29.3 6.3 FFR 815 6.9 5.0 FFR 929W 2.9 1.9 FFR 955 11.7 0 Funk's G-4733 19.9 0 Funk's G-4734 5.1 0 Funk's G-4779W 1.0 0 Funk's G-4858 17.0 3.8 Funk's G-4868 2.1 2.1 Funk's 6066X 4.2 8.1 Gold Medal 984 22.7 0 Gold Medal 3357 32.3 1.0 Jacques 8250 0 0 Jacques 8400 8.9 3.5 McCurdy 84AA 5.2 2.5 McCurdy 85-60 10.7 1.5 McCurdy 85-61 8.6 2.1 McNair 508 19.3 7.8 Northrup King PX 79 12.5 0 Northrup King PX 95 10.0 0 Northrup King PX 715 11.3 0 P-A-G SX 16A 0 0 Pioneer 3147 8.3 3.0 Pioneer 3187 1.0 1.0 Ring Around 1502 22.1 14.6 Seedtec EX-918 10.0 1.4 Stauffer 8645 4.8 1.0 Sunbelt 1860 4.8 0 Sunbelt 1882 8.3 5.0 Zimmerman Z 11 W 15.9 0.7 -20- TABLE 10. INCIDENCE OF VIRAL DISEASES IN REGULAR CORN HYBRIDS TEST, BELLE MINA, JULY 31, 1986 Brand name Hybrid Maize chiorotic Maize dwarf dwarf mosaic Pct. Pct. AgraTech GK 850 - AgraTech GK 900 0 0 AgraTech GK 925 3.8 7.5 Asgrow/0's Gold 2570 Asgrow/0's Gold 5509 0 2.2 Coker 19A 2.1 4.2 Coker 21 5.2 8.6 Coker 8905 0 2.0 DeKaib DK 689 DeKai1b DK 748 0 0 DeKaib OK 789 0 3.2 FFR 811 FFR 815 0 6.8 FFR 901 0 0 Funk's G-4522 0 5.4 Funk's G-4733 0 1.7 Funk's G-4734 0 6.5 Funk's G-4868 0 4.5 Jacques 8400 0 0 Jacques 8700 0 5.7 Jacques JX 247 0 1.8 McCurdy 8150 0 0 McCurdy 8172 0 1.5 McCurdy 84AA "- Northrup King PX 95 0 1.6 Northrup King PX 9581 0 0 Paymaster 7990 0 1.9 Paymaster 8990 0 0 Paymaster 9990 0 0 Pioneer 3055 1.5 6.1 Pioneer 3147. 0 0 Pioneer 3165 0 2.1 Pioneer 3187 0 0 Pioneer 3320 0 0 Ring Around 1502 -~ -- -2 1' TABLE 11. INCIDENCE OF VIRAL DISEASES IN REGULAR CORN HYBRIDS TEST, WINFIELD, AUGUST 1, 1986 Brand name Hybrid Maize chiorotic Maize-dwarf dwarf mosaic Pct. Pct. AgraTech GK 850 0 40.9 AgraTech GK 900 13.0 21.5 AgraTech GK 925 6.7 34.6 Asgrow/O's Gold 2570 0 42.6 Asgrow/O's Gold 5509 0 42.6 Coker 19A 0 5.2 Coker 21 19.5 32.3 Coker 8905 0 20.3 DeKaib DK 689 0 24.6 DeKalb DK 748 0 42.6 DeKalb DK 789 5.8 9.5 FFR 811 0 13.8 FFR 815 0 9.0 FFR 901 19.6 26.1 Funk's G-4522 0 26.8 Funk's G-4733 5.4 26.1 Funk's G-4734 0 21.2 Funk's G-4868 3.3 16.5 Jacques 8400 18.7 28.8 Jacques 8700 10.9 43.5 Jacques JX 247 14.3 39.7 McCurdy 8150 9.5 21.0 McCurdy 8172 6.9 33.0 McCurdy 84AA 0 22.3 Northrup King PX 95 0 7.5 Northrup King PX 9581. 0 35.2 Paymaster 7990 1.8 3.2 Paymaster 8990 2.1 32.6 Paymaster 9990 5.7 35.0 Pioneer 3055 1.8 14.3 Pioneer 3147 0 12.6 Pioneer 3165 0 6.6 Pioneer 3187 0 12.5 Pioneer 3320 6.8 29.4 Ring Arond rl1502 0 32.7 _ 2200 Al AfAAA /2G lOLU _AILL L _.aLULi&lIL. LU$IUYA I U I ndtea . LBLtl ~ ~~ueu _ . a~ xY _ ----------------------------------------------------------------------------------------------------------------------------.. . wr w...r.r~r . rr M r. r w . r. r BRAND NADME-g*YOR I1U PIONEER 3165 ASGROW/O'S GOLD) 5509 PIONEER 3147 JACQUES JX 247 PIONEER 3320 MCCURUY 8172 NORTHRUP KING PX 95. MCCURDY 84AA NORThRUP KING PX 9581 A$GROW/U$S OLA) 2570 MCCUR(JY 8150 FUNK'S RING AROUND 1502 JACQUES 8400 STAUFFER S 7759 FFR 811 ZlI MME RNAN Z 27 Y AGRATECH GK 850 AGRA TECH GK 900 FUNKS G-4614 DAKAIB OK 148 SUNBELT 1827 PIONEER 3055 JACQUES 8700 COOKER 21 PAYMASTER 9990 FUNKS G--4733 SUNBELT 1802 DEKAIB UK 789 PIONEER 3187 SUNBELT 1882 P-A-G S X 383 PAYMASTER 8951 PAYMASTER 1990 COKER 8905 DEKALB OK 689 FFR 815 1\ NA _iELL1LeLILaL4& A~a 3-YR. 2-YR., 1986 154 15i0 145 142 142 140 139 138 U,1 136 133 132 124 123 119 t_ " - 81 ___.. ...... TEST AVERAGE L.S.L). 1.051 Ga*d' 3!__---_- Z1-_-_-. YulE TE ST IC I EVED APPROX IMA ILLY MIME MUN IbIS OF MAY, JUNE, AND AX Y. 109.5 28.3 16.!) INCHES (OFIRRIGATION WATER IN 1 1 APPL ICAIOtNS DURING 147 141 136 140 132 130 137 129 130 129 131 120 113 116 114 147 135 135 130 iii:7 113 137 116 120 110 102 112 95 I1? 104 100 86 92 91 85 137 118 110 93 136 1.32 130 128 122 121 118 I11 110. 105 105 102 102 102 101 99 3-YR. 2-YR. 1986 ECL P C eci IC to? 2.0 1.0 .3 0 0 4.0 3.0 4.0 t.7 2.0 4.0 .7 0.5 1.0 2.0 3.0 5.0 1.7 1.5 2.0 .3 0.5 0 1.l 1.5 3.0 1.7 2.0 4.0 0 0 0 2.0 3.0 i. 0 of 1.0 2.0 1.1 1.5 2.0 1.0 1.5 3.0 -1.0 0 -1.0 1.0 -2.0 1.0 t .0 1.0 - 0 - 2.0 - 1.0 - 0 - 2.0 Y .. 1.0 - 0 ... 1.0 - 2.0 - 0 --- 1.0 r 2.0 - 1.0 - 1.0 - - 0 --- 1.0 - 3.0 MIiI SLK rI St dlh0A 1 L.OLU 6-4 54.3 6-1 51.1 6-5 53.2 6-2 57.3 5-31 57.1 6-5 57.4 6-5 57.0 6-4 56.0 6-4 51.1 5-30 56.1 6--1 56.5 5-30 55.7t 6-4 56.7 5-30 56.5 6-2 55.0 6-1 51.3 5-30 56.2 6-2 59.1 6-4 55.6 6-2 56.0 6-2 56.7 6-4 56.1 6-2 56.4 5-30 51.3 6-3 57.1 6-5 58.1 6-2 57.2 6-4 57.1 6-2 55.4 6-4 55.6 6-4 58.1 6-2 56.1 6-2 54.2 6-4 55.3 6-2 56.1 6-2 5. VrM 1 A+11 ASw 1 M rrArww rrsr . M__..-___.._.._r.__...____..__....-00- ... 1 /. s M r i r r__ w_ r_____.._ w_ M w_..... .... w +wr wrw.r war .r_- r____- -- --- - ... . .. ."...... .... nsib 0 a% mkt-aIirnLA&It- t A ILA 11 IIAOA IrCV Cl /t' C CAIII Attlll- - ~~&1~LA JIIA [~U~IiESILU~&LAAt1&I~t~ck----------------- C OK E 833 W Z1I MMERt MAN 1 60 W FIR 929W ASGRUWt3+S GOLD KK 405W FUNKS G-4119W ZlIMERttMAN 1 1 W SEEOIEC 11-2660W Z! IMERIIAN l 14 N D1EKAL1 UK t71W PIONLER 3165 + LIHMLRMAN 1 54 W PIONEER 1144W FUNKS 6044W JACQUES 1W-210 AGRATECII G;K EXP. 5921W PAYMAS [ER 940() W FUNKS 6054W JACQUES W-310 3--YRI. 2-YRt. 1986 llulUU L UU 121 114 66 117 112 68 115 102 51 114 106 60 111 100 49 108 102 45 103 85 41 - 105 54 - 105 60 -- 18 - - 76 - - 75 _ - 75 -- 13 -- - 10 - - 68 -- 58 - - 54 __LUUU~lIALKS &l..._ .3-YR. 2-YR. 1986 13.3 19.5 31.0 14.0 20.5 34.0 9.7 13.5 20.0 18.1 27.5 48.0 0.0 12.0 22.0 10.1 15.5 27.0 12.7 18.0 30.0 - 22.0 39.0 - 23.0 35.0 -- 5.0 - - 43.0 - - 10.0 - -- 43.0 - - 47.0 -- 38.0 - - 47.0 -- 23.0 - - 44.0 MEUSIL.K TESI 7-4 54.8 1-2 55.5 7-4 55.4 7-3 55.0 T-4 56.0 7-1 5501 7-3 55.7 1-3 54.8 1-4 56.0 7-3 57.2 T-2 54.4 7-2 55.[ 7--4 56.1 7-1 55.1 1-2 54.6 7-3 56.4 T-1 56.3 T-1 56.8 TEST AVERAGE L.S.O. 4.05) c.v. 4 11 62.2 15.2 11.2 IIY II YfMArrw lr r a_ __-AM __..__rw-rwrYYrrrr A l/rI.Y Yrrw'YYrA1 Y_----__Yr._.__----...-_____ Yfy YM Y.........4.. sY+ .. rr .r r. .r w... --.. ... .. .---------- -......---- r,..----.r.----. ------------ wrr--. -------...-- ?.----r.... r r. .rrrrr?r .r ROSSVILLC* + YCLII1U (:UKN CIIICK IIY111KII). 1 N -p 1 BRAND NAME-H1YBRID 3-YR. 2-YR. 1986 3-YR. 2-YR. 1986 NIDSILK TEST __wrw.rr___wr _rI2.~wr 6r+" J ~24.I~i 6 wwr~r rw r r_ 4rlrr+..-------------KEIL Ut fl~a U 4 1Ua IA I&h ECI& lDOatRA LfA.BUm ASGROW/Q'S GOLD RX 405W 94 92 40 6.0 9.0 18.0 6-11 - lIMt4ERNAN Z 60 W 06 182 25 3.0 4.5 9.0 6-8 - CUKER 833 W 83 79 33 3.3 5.0 9.0 6-1 - FFR 929W 78 68 25 4.0 6.0 11.0 6-10 - FUNKS 6-4779W 15 69 29 .1 1.0 2.0 6-10 - SEEIITEC 11-2660W 67 64 23 4.3 5.5 10.0 6-10 - ZIM4MERMAN Z 11 W 66 60 18 2.0 3.0 6.0 6-10 - ZIMMERMAN 1 14 W - 92 38 - 2.0 3.0 6-7 - DEKALB DK 11W- 80 32 - .5 0 6-10 - PIONEER 3144W - - 44 -- - 1.0 6-8 - FNS64W-4-- 06-0PIONEER 3165 t - - 43- - 3.0 6-7 - JACQUES W-210 - - 43- - 1.0 6-7 - PAYMiASTER 9400 W - - 42 - 6.0 6-9 - AGRAIECH 6K EXP. 5921W - - 34 - - 6.0 6--7 - FUNKS 6054W- - 31 - - 2.0 6-10 - ZIMMERMAN Z 54 W - - 30 - - 4.0 6-9 - JACQUES W-310 - -- 29 - - 5.0 6-7 - - - - - -- - - - --..- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --rir rr wrr~~rrr rw_ r~r~r rww.. r~~r. _ TE ST AVERAGE 33.2 L.S.D. 1.051 15.0 tE.V SMI TH RE SEARCH CENTER, SIIORtER. + YELLOW CORN ChIECK HYBHREV. 031 BRAND NAIL-IiYBRID 3-YR. 2-YR. 1986 3-YR. 2-YR. 1986 1410511K IESI --- r~r------- ----------- r2 eh_1lifl-------- -- ------------- .- ELfiL1L DU.. DlL fiU EI& eCla Ela l1ULIQ&. LfaLQUh Z INMERM4AN 1 60 W 126 125 104 .3.3 4.0 5.0 6-5 52.4 COKER 833 N 122 115 101 1.0 1.0 1.0 6-8 54.5 FFR 929W 114 102 10 3.4 3.0 4.0 6-10 54.3 ZIIMMERMAN l 11 W L110519 13 3.3 5.0 9.0 6-1 54.9 FUNKS G-4U79W 110 96 65 4.1 5.5 9.0 6-8 54.2 ASGROWI/O'S C(D ) X 405W 109 93 60 6.U 7.0 12.0 6-8 55.6 SEEUIOEC 11-266011 93 16 59 5.0 6.0 9.0 6-8 55.2 ZIMMERMAN 1 14 W - 125 100 - 4.0 1.0 6-1 55.2 DEKAI.B OK 717W - 120 104 - 4.0 5.0 6-8 54.8 FUNKS 6044W - - 97 - - 4.0 6-10 55.4 PIONEER 3144W - - 94 - - 7.0 6-8 52.6 ZIDMMERMAN 1 54 W - - 93 - - 2.0 6-8 53.1 PAYMASTER 9400 W - 89 - - 4.0 6-8 56.1 PIONEER 3165 " - - 871 - 1.0 6-7 52.3 JACQUES W-310 - - 87 - - 6.0 6-8 56.3 JACQUES W-210 - - 86 - - 9.0 6-8 55.9 FUNKS 6054W - - 83 - - 6.0 6-7 54.6 AGRAIECH GK EXP. 5921W - - 81 - - 4.0 6-5 53.1 TEST AVERAGE 84.9 I.S.O. (.051 23.5 C.V. 1;1 19.5 -W~E I tSItIKEC I VLl) A5PROXIMATE~LY 16.5 INCIISSON) II MIENIIIS UIF MAY, JUNE. AND JULY. f YCi(JUW CiIEN (IIELK IVIt II). IRIIGAT IAN WAJI:R IN 11 APPLICATIONS DURING EN CA BRANI) NAME-gIYINRID 3-YR. 2-YR. 1986 3-YR. 2-YR. 1986 MID;L TS _.r _- -- --- 4 r "Ihii aLL ._r r~.L ..... flU...L.BU. NORtHRUP KING PX 79 116 124 90 2.7 4.0 6.0 6-1"5. FUNKS 0-4614 136 133 101 6.0 8.5 12.0 6-2"5. AGW/'SGL25015 1% 13 63 90 106JACQUE S 7900 132 126 101 9.0 13.0 21.0 6-18EC K 5 12154.421 . 40 6 FUK -5210 15 13 53 80 1. ASGROW/U'S GOLD RX 711 130 124 94 2.1 4.0 4.0 6-17 5. COKER 8575 122 122 105 2.7 4.0 5.0 6-1" 5. FUNK'S RING AROUND 1 404 1 19 117 104 2.3 3.0 3.0 6-17 5. ZIMMiERMAN 1 21 Y - 144 112 - 13.0 21.0 6-24 5. COKER 8601 - 135 109 -- 7.0 12.0 6-2017 54.111 45 .0 6 aMCCURDY 1312 - 121 107 - 10.0 13.0 6-11 5. SEEDIEC 11-2601 - 124 114 - 6.0 6.0 6-1" 5. aASGROW1U S GOLD 3314- - 18. 91 - 6.0 5.0 6-18 5. JACQUES 7820 - 118 98 - 3.5 3.0 6-16 5. MCCURDY 7800 - -- 108 - - 11.0 6-2" 5. GOLD MEDAL. 842 - - 104 - - 9.0 6-1" 5. TERRA IR 3303- - 104 - - 7.0 6-18 5. PIONEER 3389 - - 101 - - 2.0 6-1" 5. DEKALS DK 656 - - 101- - 7.0 6-1"5. STAUFFER 71-- 101 - - 5.0 6-11 6. GOLD MEDAL 580 - - 100 - - 6.0 6-17 5. MCCURDY 12171 - 99 - - 8.0 6-16 5. SEEDIEC 7625 - - 99 - -- 8.0 6-1. 5. ASGROWIU'S GOLD) 5509 - - 98 - -- 13.0 6-20 55.1002 9 ZIMIMERM4AN 1 35 - - 96 - - 20.0 6-20 5. TEST AVERAGE 102.1 I.S.D. 1.05) 11.0 c. v. I(C)t7.7 CEROSSVILLE. BRAND NAM4E-HYB3R ID FUNKS G-4614 FUNK'S RING AROUND 1404 NORTHRUP KING PX 19 COKER 8575 ASGROW/O' GOLD RX 711 ASGROW/O'S GOLD 2510 AGRATECHI GK 150 JAC QUE S 7900 MCCURDY 7312 ZIMMtERMIAN 1 21 Y COKER 8601 FFR 741- SLEOTEC 11-2601 JACQUES 1820 F~UNKS G-4522 tI1VVIERNAN 1 35 I)EKALB OK 656 MCCURUY 7800) MCCURDY717 PIONLER 389 SEEDTEC 7625 ASGROW/U'S GOLD 3344 STAUFFER 1751 DEKALB 11100 ASGRO/0'S GOLD 5509 TERRA TR 330) 3-YR. 2-YR. 1986 Ls.I~1itU. flU&~ 98 88 87 86 86 85 84 76 J2 It .- fk. AUA 102 89 85 86 84 88 82 15 101 98 96 85 85 81 iiuai 33 28 25 28 41 31 24 36 33 28 32 33 32 19 313 34 34 34 33 32 31 29 27 26 20 3-YR. -L hfl 6A. EELS. .3 1.0 1.T .l 1.0 1.0 2.0 .l 2-YR. .5 1.5 2.5 1.0 1.5 1.5 3.0 1.0 3.0 1.5 3.0 3.0 1.0 1.0 1986 1.0 3.0 4.0 2.0 3.0 3.0 6.0 2.0 2.0 5.0 6.0 1.0 2.0 4.U 5.0 1.0o 5.0 3.0 2.0 3.0 4.0 3.0 1.0 4.0 2.0 IIOSliK TIEST tBOALil& .LftALfU& 6-12 6 6-912 6-91 - 6-13 - 6-10 6-12 - 6-11 - 6-9 - 6-9 - 6-10 - 6-12 - 6-12 - 6-11 - 6-12 - 6-9 - 6-10 - 6-10 - 6-9 - 6--10 - 6-12 - 6-12 - 6-12 - 6-12 - 6-9 - 6-10 - TEST AVERAGE c..V. 1 1 1 E.V. Stir ill RE SEARCHI CENIER. SliORT ER. 30.9 10.3 23.6 .. _.rL.uartEl _, t . attdY ... _..._. - 40..... ftw w r wY. .. y w w n. so--a r-n -------- ---- rr rwr w r+. rw w i.wr w.r ---- ------ rr r--------- ----.- ?. rArrrrrrrr__rtAfltE lltEAflIX_ l flddX@B1Qrti , _..E.EdIBAIrAIA@AdAi lift r rrfli____. r. __ .. r. .rrrirn .. _ .ter r+r _ r .nr r_ . rrr..__wrrrr__rr..r. ---- _..__r_-rr..__rrr__ .rrwrrr..rrr___rr__rrr___.. ---- rr_____r__r r...-ter I N 00 1 SKANU 1AKE-IIVWIII1u 3-YR. 2-VYA. 1984 3-VA. 2-YR. 1986 MIOSII.A TEST l UNKS 6-4522 130 134 15) .1 .5 1.0 5-22 51.4 ASGIIUU/U*$ GWOLD 2510 126 1211 124 2.1 3.5 1,0 5-21 54.1 LOKEM 6515 125 139 159 u 0 0 5-21 55.4 ASURIW11bS/U63G10 AX 111 124 124 1341 $1 .5 1.0 5-22 56.1 FUNtKS 6--4614 121, $114 117 .3 0 0 5-24 56.9 JACQUES 1900 119 124 126 .3 .5 1.0 5-12 55.9 AGRA IECI6GK 150 1161 123 130 0 0 0 5-22 56.1 5UUIK*$ KING AROUND) 1404 111 ?24 1 19 0 0 0 5-22 54.0 I*IMERMNAN 1 21 Y - 141 144 - .5 1.0 5-25 54.4 SIEEUIIEL 11-2601 - 1)4 134, - 0 0 5-22 55.2 JACQUE S 18*20 _ 131 115 - 0 0 5-22 51.1 CUKEII 0601 - 110 131 - 0 0 5-21 55.2 DICCUIIIV 1)12 - 130 134 - 0 0 5-21 56.2 IlK 141- 129 1 30 - 0 0 5-22 511.) ASGRI1U/Us G61)11 344 - 111 113 - .5 I.0 5-22 54.8 ASGME0II')S GOLD 550) - 159-- 0 5-25 51.1 PICCUK)V, 101) - - 146 - - 1.0 5-24 51.1 PIONEIER 3)519 - - 142 - - 0 5-21 56.9 WEKALSI OK 656 -_- 141 - - 0 5--22 54.5 IJEKA~LI 11100 -- - 140 - - 0 5-23 54.9 S1 AUIf~it 1151 r - 13118 - 1.0 5-22 581.5 IEIIA li 3301 - - 114- - 5.0 5-22 51.1 flCCUKOV 1211 - - 112 - - 0 5-22 55.1 NW( 1IIUS KING PE 11 - - 129 - - 0 5-22 56..1 StUUIIL 1625 r - 12)3-- 0 5-2) 54.1 ZI N5I(K1IAII 1 3r - - 111 - - 0 5-24 55.9 1lr AVIRADE 1.S.O. 1.051 c.v. 411 25.0 1.1 w r i7 i i w .. r r . w w . . r w r r rr wr r . . w r... - - - . r i r .. I N~ 1o REPORT OF PRELI14INARY TESTS TASLE 19. CHAACTERISTICS OF CORN HYBRIDS TESTED ONE P4Pf~~c aA&81A.1 SRANO NME-44vft1D FUNKS 6066X SEEOrECT7750 GOLD0 *MEIAL. 954 M4CCURUY 7711 NORT)4RUP KING PX 9584 GOLD M~EDAL 1070 ASGRUW/U* S GOLD RX 860 OE KALS OK 711L ZI MMER MAN Z 4,5 NOR~THRUP KING PX 9540 GOLDEN HARVEST l-2675 ZIMM~ERM4AN Z 3.7 UCL,TAP INE 5730 PAYMAS T R 9427 FR 810t PAYM4ASTR ~8951 TERRA TR 1170, STAUFFEIR 3305 NORfl4RUP KING PX 9646 CI3KSR 862Z5 ASGA0W/0 S GOLD RX 798 JACQUES 8350 PIONEER 3110 ICU R0 7676 P-A-G SX 164 JACQUES 8250 P-A-4 SX 3 52 TERRA ?R 3303 ST AUV' ER 3645 FUNKS G- 4635 PUNKS 0-4765 'MCCURoY 84-5ui iURflRUP KING PX 9685 CARG[LL 971 COKER 8680 AGRATECII GK S5 SUNBELT EXP. 56L 3 SUNBELT EXP-. 5615 COKER 3020 PIUNEiER 3358 P'-A-G SX 145459 CARGILL 980 CflKER 8693 FPFR 76? SEEDTEC H-2636 TERRA r R 4405 PAYMASTER ;X 212599 SUNOCL.T 6225 P- A-G S X 3 79 TEST AVERAGE L.S.L~. (.05) C~v. (z) AV. YZELD 9? 96 95 95 94 93 92 91 91 90 89 39 88 8? 86 3, 85 85 85 35 84 84 84 84 83 83 83 83 3 83 81 81 8L 81 81 80 R0 79 79 78 78 76 75 75 74 71 70 70 YEAR AT C I0SSV1LLE 8 3.*4 L&. 3 U., r LQ0D 29 .0 14.0 17.0 27.0 24.0 L6. 0 L1.0 29.0 L5.0 20.0 30.0 24.0 20.0 25.0 15.0 2700 21.0' 283.0 18.0 18.0 13.0 19.0 14.0 29.0 18.0 21.0 23.0'. 170 13.0 z9.0 11.0 20.0. 23.0 30.0 5.0 Z27.0 2490 30.0 29.0 16.0 26.0 25.0 t9.0 15.0 200 34.0 26f.0 15.0 28.0 IIDS3LK 6-27 61-27 6-26 6-2k 6-27 &=Z9 6-26 6- 28 6-27 6-25 6-25 6- 29 6-2 8 6-30 6-Z7 6-28 6-2 8 6-30 6-28 6-26 6-28 6-26 6- 29 6-26 6-27 6-50 6P-25 6-26 6-28 6- 29 6- 28 6-27 6- 29 6-2? 6-26 6-26 6-27 4-23 6-27 6-26 6-29 6-2 8 6-28 6-26 7- 2 6-29 6-2 4 7-2 6-29 TEST 55.6 559 53.5 54.L 55.7 57.1 55.7 55.2 54.3 54.2 53.7 56.2 53.0 56.8 55.2 56.3 5593 57.3 56.1 54.0 53.0 56.2 53.4 55.3 55.1 53.2 53.8 56.0 54.L 55.4 52.4 5690 53.3 56.2 53. 1 53.5 54.3 54.' 55.3 34.9 55.9 55.6 55.2 54.8 55.6- 5506 53.2 55.2 .rw REPORT OF PRELIMINARY TESTS TABLE 20. CHARACTERISTICS OF CORN HYBR IDS TESTED ONE I N EFMT1 lA#a sMA _,IOaR BRAND NAM E-HY1 RI0 MCCUR0Y 85-60 CARG IL L 980 SEEDIE.C 7750 NORTH4RUP KING PX 9646 ASGROW / O"S GOLD RX 860 ZI MMERMAN Z 35 '- A-G SX 16A DEKALS OK 711 NORTHRUP KING PX 9685 SUNBELT 6225 NORTHRUP KING PA 9584 GOLD MEDAL 954 FUNKS G-4134 SEEDTEC 1H-2775A FUNKS 6055X GOLD MEDAL 1070 DELTAPINE 5750 ?CCURDY 85-61 P-A-G SI 183059 COKE R 8680 ST AUFF ER 8505 ASGR0W/0" S GOLD RX 798 FUNKS 6066X FFR 810 CARG IL L 971 COKER 8693 FFR 901 FFR 767T P- A-G SXt 352 JACOUE S 8350 COKER 3020 PAYMASTER 9427 PAYMASTER X 212599 P-A-G 51 379 SUNBELT EXP. 5615 ZI MMER MAN Z 45 PIONEER 3110 SUNBELT EXP. 56L3 PI UNEE R3358 STAUFFER 8645 TERRA TR 4405 NORTHRUP KING P~ c 0 COKER 8625 AORATECM GK 925 GOLDEN HARVEST if-'i473 TERRA Tit 3303 AGRATECH Gk 755 JACQUES 8230 TERRA TR 1170 AY. YIELD P ACRE 110 103 102 101 97 97 97 97 92 92 92 92 91. 91 89 88 88 88 87 86 85 84 83 83 82 82 81 81 81 81 80 79 79 78 78 78 76 76 75 74 74 74 73 72 72 70 '7 67 66 YEAR Ar TALLASSEE wmm TEST AVERAGE83. L.S.O. (.051 16.3 G. v. (TI 25.1 -31- A 1 7 Q L0DGED- SLALL 7.0 9.00 5.0 2.0 2.0 7.0 1.0 3.0 2.0 3.0 2.0 2.0 3.0 16.0 1.0 5.0 5.0 6.0 3.0 1.0 2.0 1.0 4.0 L.O0 4.0 2.0 2.0 7.0 2.0 6.0" 4.0 6.0 1.0 7.0 4.0 3.0 4.0 5.0. 2.0 8.0 7.0 2.0 0 7.0 6.0 3.0 3.0 11.0 5.0 MEDSILX 4m 4m w aft 40 low an aft an TEST 55.4 56.3 57.9 59.0 56.7 55.*8 55.6 57.3 58.4 55.2 56.7 56.3 58.8 57.7T 59.4 57.6 37.7 54.4 58.0 59.7 57.0 56.4 57.3 57.3 54.0 56.9 58.6 57.0 55.4 56.3 56.1 57.0 57.6 55.8 57.8 55.8 58.3 55.8 36.4 55.1 511.9 56.7 57.0 55.08 54.7 55.1. 55.1 535.5 56.6 REPORT OF PRELIMI NARY TESTS TABLE 21.. ZMAKACTRISTI CS OF CORN HYBRIDS TESTED ONE IN SJTMFR-N LA74A. 1986 BRAND N AM&-+YBSR ID SUNBELT 6225 AGRATEC)4 GK 925 SUNBELT 1860 OEKAU OK 71.1 ST ALFF ER 8 505 TERRA TR 1.170 FUNKS 6055X P- A-G SX 379 SUNBELT 1.876 MCCUROY 3170 GOLD M4EDAL 1.070 FR 810 CARGILU.980 TERRA TR 4405 FUNKS G--4635 F'PR 901 ASGRI2/09S GOLD RX 798 SE EDTSC x-2 686 DELTA? INE 5750 PAYMASTER 8990 S.EEDTEC 7750 FUNKS 60"KX NORTHRUP KING PX 9685 PAYMASTER 9427 ASGROW /OS GOLD eKX 860 PIONEER 311.0 CO3KER 8625 ZiMMERMAN 2 35 TERRA TR 3303 COKER 3020 CARGILL 9711 COKER 8693 COKER 8680 JAGCQUE S 8250 P-A-i SX 1.85059 P-A-G SX 16A JACQUES 8330 ST AUFF ER 8645 NORTHRUP KING PX 9646 PUNKS r-4868 SE EDTSC t!- Z75A. GOLD MEDAL 954 ZI MMERMRAN Z 45 SUNBELT EXP. 5613, NORTHRUP KING PX 9540 NORINAUP KING PX 9 584 P-A-G SX 352 ARATEC 4 GK 753 PIONEER 3358 MCCUROY 82-21 PAYMASTER x 212399 SUNBELT EXP. 561.5 FPR 767 TEST AVERAG~E L.S5.D. t.051 CI V* t+') AV. Y 1EL 1o9 1.64 159 1359 157 156 136 154 L53 1 :i2 152 :.52 1.51 1.50 L0 1.50 149 1.49 149 1.48 1.48 147. 146 146 145 145 144 144 143 143 1.4Z 142 142 1.42 1.42 141 140 140 138 138 1.37 1.36 L36 135 1.35 1.34 1.34 132 131 130 128 1.20 1.16 W YEAR AT FAIRHOPSE ,....... 144.1 t6.3 8.3 -32- --- ----- - -U- - - - --- - -- r 2.0 2.0 2r0 1.0 2.0 4.0 1.0 0 0 L.0 2.0 0 0 0 1.0 0 1.0a 0 0 1.0 2.0 0 0 0 0 1.0 0 0 0 1.0 0 0 0 1.0 0 2.0 1.0 1.0 0 0 0 0 0 1.0 0 0 4.O 0 0 1.0 MIDSIZLX 5-30 5-.31. 5-30 5-28 -23 5-30 5-29 5-29 5-29 5-30 5-29 5-2 9 5-29 5-30 5-29 5-29 5-238 5-28 3-29 5-29 5- 27 5-29 50028 5-29 3."28 5-27 5-28 5-28 5-25 5-30 5-29 5-28 5-28 5-29 53-31 5-28 5-28 5-29 5-29 5128 5-29 5-28 S-23 5-28 5-31 5-27 5-28 5-28 TEST 55.7 37.1 57.3 58.0 59.2 57.4 55.0 56.7 58.3 3T.7 58.1 56.8 37.6 57.3 59.1. 57.4 58.0 58.3 57.*7 58.3 57.7. 56.3 5 8. 57.4 58.5 56.6 57.8 58.0 57.1 55.6 58.0 57. 4 57.6 57.0 57.4 57.1 57.1. 54.8 57.5 36.0o 56.9 57.3 33.4 55.4 56.7T !PTO 0 55.2 57.2 58.0 58.4 57.1 - - SOURCES OF 1986 CORN HYBRID TEST SEED Seed Company Brand SeeCmany AgraTech Seeds, Inc. P.O. Box 644 Ashburn, GA 31714 Asgrow Seed Co. 7000 Portage Rd. Kalamazoo, MI 49001 Cargil l Box 5645 Minneapolis, MN 55440 Coker's Pedigreed Seed Co. P.O. Box 340 Hartsvill1e, SC 29550 Columbiana El dred, IL Seed Co. 62027 DeKal b-Pfizer Genetics 3100 Sycamore Road De Kaib , IL 60115 Delta and Scott, MS Pine Land Co. 38772 FFR Cooperative 4112 E. State. Rd. W. Lafayette, IN 225 47906 Funk Seeds Int. P.O. Box 2911 Bloomington, IL 61702 Gold Medal Hybrids P.O. Box 120 Louisville, KY 40201 GK Jacques Seed Co. Prescott, WI 54021 Asgrow/ 0's Gold Cargi 1l Coker Golden Harvest DeKai b Del tapi ne FFR Funk's G Ring Around Gold Medal McCurdy Seed Co. Fremont, IA 52561 Northrup King Co. P.O. Box 151 Frernont, IA 52561 PAG Seeds P.O. Box 9493 Minneapolis, MN 5 Paymaster Seeds P.O. Box 9493 Minneapolis, MN 5? Jacques McCurdy Northrup Ki PAG 5440 Paymaster ;5440 Pioneer Hi -Bred Int. 1000 W. Jefferson St. Tipton, IN 46072 Stauffer Seeds, Inc. 975 South Durkin Dr. Springfield, IL 62704 Sunbelt Hybrids, Inc. Wetumpka, AL 36092 Terra Seed Co. P.O. Box 10121 Lubbock, TX 79408 Zirmermnan Hybrids, Inc. 5147 W. Franklin Rd. Evansville, IN 47712 Pioneer S tauffer Sunbelt Terra Z imerman -334w Brand ACCEPTABLE IIYBRIDS FOR 1981 All of the acceptable hybrids are not equal in performance. It is suggested that this report be carefully studied bfr choosing a hybrid. for relative maturity information, use the days to miidsiik data in preceding tables. Unless otherwise noted, all acceptable hybrids have been tested at least '3 years in the regular variety tests and are lite5 i descending order of 3-year average yield. NORTHERN ALABAMA fellow hybrids White hy~brids Early hybrids brand name Hybrid Brand nave H&brd Brand Namve "yri Pioneer 3165 Coker 833W Northup king PX 1 Pioneer 3147 Pioneer 3320 Zlluiermian 7 60 W funk's 6-461 Pioneer 3187 Northrup King PX 95 FFR 929W Asgrow/0's Gold 2510 Jacques 8400 As row/0's Gold 2570 Asgrow/0's Gold RX 405W Jacques 7900 Mc~urdy8150 Jacques JX 241 Funk's G-4119W AgraTech GK15 Funk's G-4733 Paymaster 8990 Zinmnerman l 11 W funk's 6-452 Funk's 6-4522 Northrup King PX 9581 Asgrow/0's Gold RX 1 Funk's RA 1502 Asgrow/0's Gold 5509 t l Iuiermuan Z 7 McCurdy 84AA Coker 21 ICoker 8601 Coker 19A t linmerman t272 y t FFR 141 $ Pioneer 3055 tMcCurdy 8172 tRecoiended based on exceptional 2-year average. w -p 1 ACCEPTABLE HYBRIDS FOR 1987 (continued) CENTRAL ALABAMA Yellow hybrids White hybrids Earl~y hy~brids Black Belt Brand name 1I brid Brand namte itybrill Brand name IIybrad Brand name ybi Pioneer 3320 Asgrow/0's Gold RX 405W Funk's G-4614 Sunbelt 16 Pioneer 3165 limmuerman 1 60 W Funk's RA 1404 Pioneer 34 Jacques. 8400 Coker 833W Northrup King Pk 19 funk's 645 Pioneer 3147 FIR 929W Coker 8515 Asgrow/0's Gold 60 Asgrow/0's Gold 2570 funk's 6-4719W Asgrow/0's Gold RX 777 McCurdy 8A IcCurdy 8172 7luera 14 W Asgrow/0's Gold 2510 FUR95 McCurdy 8150 Agralech GK 750 Jacques 80 Northrup King PX 9581 tAgraTech GK 850 Northrup King PE9 Asgrow/0's Gold 5590 iNorthrup King PX 9581 *Funk's 643 "funk's 6-4733 t McCurdy 7312 tIluuuerman 12 *Jacques JX 247 tIhnunerman 1 27 YV t Dekalb D 8 *McCurdy O4AA tCoker 8601 t~ekalb O 8 *Coker 21 t Sunbelt 1816 *If present trends continue, this hybrid will be removed fray the acceptable list uext year In the categoryidctd t Recouunended based on exceptional 2-year average. W I ACCEPTABLE HYBRIDS FOR 1981 (continued) SOUTHERN ALABAMA Yellow hybrids Whie ybids Early hybrids Brand name If bridl Brand name 11 brid Brand namae Iri i on e 1 5x ua r~a 0 Wf n'cCurdy 8112 Coker 833W Asgrow/O s Gold 261 Pioneer 3320 f fR 929W Coker 81 Pioneer 3141 ZtIaeruian 1 $1 W Asgrow/0s Gold1177 McCurdy 8150 Funks 6-4719W funk's -61 Asgrow/O's Gold 6509 Asgriw/0's Gold Ill 405W Jacques 190 P Ionneer 3187 t tinaneruan 7 14 W Agralech 6K/5 Coker 21 IDekalb OK 71W funk's A10 'Jacques JX 241 t 7 Iunaerman 72 'Northrup King P1 96 t SeedTec II-60 (Pioneer 3056 ifunks G-4614 lAsgrow/O's Gold 2510 SIf present, trends contiinue, this hrybrid will be removed fromu the acceptable list next year ill the category indicated. t Recomended based on exceptional 2-year average. w CAJ