?'N <,, :0 ./ 1987 Alabama Cotton Variety Report Agronomy and Soils Departmental Series No. 122 January 1988 Alabama Agricultural Experiment Station Auburn University Lowell T. Frobish, Director Auburn University, Alabama . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TABLE OF CONTENTS Page I NTRODUCT ION........................... EXPERIMENTAL CONDITIONS.1 EXPLANATION OF DATA.2 NEW AND EXPERIMENTAL VARIETIES..............................4 STATISTICAL ANALY SIS.4 LOCATIONS OF EXPERIMENTS.................5 TABLE 1.. Performance of Cotton Varieties at Belle Mina, A1 abama, 1987a....................................... 6 TABLE 2. Performance of Cotton Varieties at Crossville, Alabama, 1987....................... ......... 7 TABLE 3. Performance of Cotton Varieties at Prattville, Alabama, 1987.8 TABLE 4. Performance of Cotton Varieties at Tallassee, Alabama, 1987.9 TABLE 5. Performance of Cotton Varieties at Shorter, Alabama, 1987. ................................. 10 TABLE 6. Performance of Cotton Varieties at Monroeville, Alabama, 1987.11 TABLE 7. Performance of Cotton Varieties at Brewton Alabama, 1987.12 TABLE 8. Performance of Cotton Varieties at Headland, Alabama, 1987................................. 13 TABLE 9. Performance of Cotton Varieties in Alabama, Average of All Locations................................14 TABLE 10. Percentage of Plants Showing Symptoms of Fusarium Wilt, Tallassee,Alabama ....................... 15 TABLE 11. Fiber Properties of Cotton Varieties at Crossville, Alabama, 1987 ................................... 16 TABLE 12. Fiber Properties of Cotton Varieties at Prattville, Al abama, 1987..................17 TABLE 13. Fiber Properties of Cotton Varieties at Brewton, Al abama, 1987..................18 TABLE 14. Sources of Seed for the 1987 Cotton Variety Tests... 19 RECOMMENDED COTTON 'ARIETTES FOR ALABAMA............ Information contained herein is available to all persons regardless of race, color, sex, or national origin 1987 Alabama Cotton Variety Report A Report of the Performance of Cotton Varieties Tested in Alabama W.C. Johnson 1 INTRODUCTION The Alabama Cotton Variety Test is a continuing evaluation of available cotton varieties from private companies and state agricul- tural experiment stations. Breeding lines that are likely to be released as varieties are also tested. Tests are conducted on units of the Alabama Agricultural Experiment Station by Experiment Station personnel. Cultural practices are those generally recommended by Auburn University to farmers. Every effort is made to test the varieties and present the results in an unbiased manner. EXPERIMENTAL CONDITIONS A randomized block experimental design with four replications was used at each location. Plot row. length at different locations varied from 40 to 120 feet. Plots were two-row at Prattville, Headland, Belle Mina, Shorter, Tallassee,- and Crossville. Single-row plots were used at Brewton and Monroeville. Climatic conditions were generally favorable through mid-season. Favorable conditions continued for most of southern Alabama; however, central and northern areas experienced severe drouth stress after mid-July. Professor of Agronomy and Soils. - i-1- EXPLANATION OF DATA Harvest of Seed Cotton Tests at Prattville, Brewton, Monroeville, Tallassee, Belle Mina, and Shorter were harvested by a mechanical spindle picker. Tests at Headland and Crossville were harvested by hand. Average yield of seed cotton was determined for each variety at each location. Lint Percentage A sample of seed cotton from each variety at each location was taken at harvest and ginned on a 10-saw gin. Lint percentage was calculated by dividing weight of lint by weight of seed cotton. Yield of Lint Lint yield was determined by multiplying the lint percentage by yield of seed cotton. Fier Properties Fiber qualities of all varieties from selected locations were determined by Starlab, a commercial fiber testing laboratory in Knoxvill e, Tennessee. Span Length. This is the fiber length measured with the digital fibrograph. The 2.5 percent length is the average length of the longest 2.5 percent of the fibers and the 50 percent length is the average length of the longest 50 percent of the fibers. The 2.5 percent length is about the same as the classer's staple. Stelometer. T 1 is a measure of breaking strength of a standard fiber bundle with the holding jaws separated by 1/8 inch. This is a measurement similar to Pressley strength except the figures are in grams per tex. Tex is a size measurement of the fiber bundle. The -2- larger the T1 , the stronger the fibers. E 1 measures the percentage stretch before the fibers break. Micronaire. This measures the fineness and maturity of the cotton fibers. The smaller the micronaire reading, the finer and/or more immature the fibers. The desirable range of micronaire is 3.5 to 4.9. Earliness Where more than one harvest was made, earliness is reported as the percentage of the total yield harvested at the first picking. Fusarium Wilt Reaction of varieties to Fusarium oxysporum f. vasinfectum (fusarium wilt) was evaluated at the Plant Breeding Unit, Tallassee. The varieties were grown in a field with a high natural incidence of the fusarium wilt disease. During 1987 fusarium wilt was extremely severe. Severity of the disease varies from year to year and also within the experimental area in the same year. Therefore, several years' data are necessary to realistically characterize a variety's wilt reaction. Stoneville 825 has consistently shown a high incidence of wilt. All other reported varieties that have been tested for at least 3 years have acceptable tolerance to fusarium wilt. Deltapine 90 is reported to have unusually low wilting. This is a computed value and not an actual observation. This variety was inadvertently omitted from the test. Verticillium wilt is being more frequently identified in northern Alabama than previously. Varietal comparisons reported in table 10 do not apply in any way to this disease. NEW AND EXPERIMENTAL VARIETIES Several new varieties were tested in 1987. Stoneville 453 is a promising new variety to be released in 1988, however there will be a very limited seed supply. PO 3 is a newly released variety developed at the Pee Dee Experiment Station in South Carolina. Seed information is available from the South Carolina Department of Seed Certification, Clemson, South Carolina. Terra C-30 and Terra C-40 are newly available varieties from Terra International, Inc. Seed will be available and marketed in 1988 although seed of Terra C-30 will be somewhat limited. Coker 118-6903, Coker 130-6905, Coker 81-613, and GaT 81-225 are advanced experimental lines and not released varieties at this time. STATISTICAL ANALYSIS Appropriate analyses of the yield data were made. For each location, the variability in the test was measured and expressed as a percentage of the test mean, i.e., the coefficient of variation (C.V.). An indication of the magnitude of difference between variety averages necessary to be considered a real difference is given for each location. It is designated Least Significant Difference (L.S:.D..05)* -4- LOCATIONS OF EXPERIMENTS Tennessee Valley Substation, Belle Mina W.B. Webster, Superintendent Sand Mountain Substation, Crossville - J.T. Eason, Superintendent Prattville Experiment Field - D.P. Moore, Superintendent E.V. Smith Research Center, Shorter - R. R. Duffield, Superintendent Plant Breeding Unit, Tallassee S.?. Nightengale, Superintendent Brewton Experime-nt Field - J.R. Akridge, Superintendent Monroeville Experiment Field J.R. Akridge, Superintendent Wiregrass Substation, Headland H.W. Ivey, Superintenden-t TABLE 1. PERFORMANCE OF COTTON VARIETIES AT BELLE MINA, ALABAMA, 1987 87 2-YR. AV. 3-YPAV VARTTY i _NT/ACRF JN;AT IN EFS .- NT/AC ITNTZACRE DES 119 775 41 93 832 STONEVILLE 453 761 45 91 - DELTAP I NE 20 759 42 92 786 860 KC 380 756 40 94 855 960 STONEVILLE 112 738 42 92 835 904 STONEVILLE 825 736 43 91 815 880 DELTAPINE 90 726 43 90 800 843 MCNAIR 220 725 40 91 697 812 GAT 81-225 715 39 92 800 COKER 139 712 42 93 781 889 DES 422 702 41 94 740 826 PD 3 700 41 -88 COKER 130-6905 697 42 9240 STONEVILLE 506 696 40 93 791 840 DELCOT 390 684 39 92 697 COKER 118-6903 678 40 91 - COKER 208 676 39 93 687 831 ARKOT 518 672 40 94 752 TERRA C 40 672 42 92 - DELTAPINE 50 667 38 91 805 933 MCNAIR 235 657 39. 88 740 857 COKER 81-613 652 41 94 687 DELCOT 344 648 39 92 726 - DELTAPINE 41 627 44 39 745 799 TERRA C 30 626 38 90 -- CKE 31551 40 94 691 796 TIFCOT 56 616 38 89 700 826 PAYMASTER 145 615 36 87 658 .32 DELCOT 311 612 40 90 713 814 ACALA 1517-75 477 40 83 Ism TEST MEAN 680 L.S.D. (.05) 96 TABLE 2.. PERFORMANCE OF COTTON VAR[IETS AT CROSSVILLE, ALABAMA, 1987 19872-YR. AV. 3-YR. AV. VARTF7 TY -L-TNT/ACRF lNT Rt t tTTPR tESJ -,U DES 422 405 41 - 627 636 COKER 139 395 40 651 632 TERR R A C 30 361 39 - COKER 81-613 360 42 - 601 DES 119 356 40 - 691 DELTAPINE 90 353 39 - 648 554 COKER 315 349 41 - 603 578 TIFCOT 56 343 40 635- DELCOT 311 343 42- 646 633 STONEVILLE 112 339 39 - 535 539 COKER 130-6905 338 38 - - COKER 208 338 40 - 59 520 STONEVILLE 825 337 41 - 6L2 590 DELCOT 344 336 39 - 636 QELTAPINE 50 331 40 - 618 627 MCNIR 235 331 41 - 688 649 PO 3 330 40 - - ARKOT 518 325 39N 669 DELCOT 390 320 40 - 630 COKER 118-6903 319 40 - - - - TERRA C 40 319 39 - - - MCNAIR 220 314 39 - 683 674 STONEVILLE 506 305 40 - 574 189 DELTAPINE 41 304 40 - 527 577 DELTAPINE 20 302 41 - 593 623 KC 380 290 41 - 644 635 GAT 81-225 279 40 - 630 STONEVILLE 453 254 39 - -- TEST MEAN 331 L.S.D. (.05) 86 C,,V, op - 7 - TAPLE 3. PERFOPMANCE OF COTTON VARIETIES AT PRATTVILLE, ALABAMA. 1987 smo WO la NO!ow "f -som "MINMUM _ NO own-me - 2-YR. AV* 3-YR. AV4 Jy T /ACB N E, N __LMAL$ LLLL E_ LLTAZfE " 3 80 97 8 IZ7 Kd 380 1,153 39 97939 OELTAPINE 90 1,035 40 97 823 993 00 3 1021 39 94Sa C-OKE R 130-6905 1,013 41 96 - ST OINEV 1 LE 825 975 40 97 812 COKER 208 970 37' 97 751 891 QELTAPINE 20 9-61 39 96 781 899 DES 422 956 38 95 794 948 MCNAIR 220 954 40 96 764 879 STONEVILLE 453 931 38 97 - DELTAPiNE 50 931 37 97 765 TE RRA C 40 931 40 q601 MCNAIR 235 929 3.8 96 753 877 DES 119 925 39 96 786 TIFCOT 56 974 38 96 748 STON EV L LE 506 9 2 27' 37 97 766 905 TElrA C 30 919 37 96 STONEV ILLE -.12O 907 38 96 756 891 COKER 315 904- 39 95 730 898 COKER 139 893 38 96 728 913 COKER 81-613 88T, 41 95 695.lo GAT B-1--225 886 39 9-5 725 DELCOT 311 850 37 96 674 .841 t.0JKER18- 6 403 847. 3895" DELCOT 344 844 38 95 705 OEf.LTAPINE 41.L834 319 96 709 5.1, DELCOT 390 8,19 37 94 65CNo ARKOT 518 8-14 3,8 96 687 TEST MEAN 926 L*.S.D. (.05-) 87 TABLE 4. PERFORMPANCE OF COTTON VARIETIES AT TALLASSEE, ALASAMA, 1987 I q A 7 2-YR. AV. *'3-YR. AV. R I T U IN TA/ 5F L AT ARINT./AR TNTA ___PCC., I_ COKER 118-6903 473 40 COKER 81-613 443 42 - 378 MCNAR 235 440 41 - 436 572 PD 3 434 38 - TERRA C 30 422 40 - STONEVILLE 453 414 44 - COKER 130-6905 413 42 - DELTAPINE 90 377 41 - 354 583 TIFCOT 56 371 41 - 357 COKER 139 369 40 - 376 530 DES 119 354 41 - 341 COKER 315 345 40 - 286 497 MCNAIR 220 341 40 358 545 DELTAPINE 41 339 43- 311 537 GAT 81-225 334 41 - 348 DELCOT 344 332 41 - 369 DELTAP INE 50 330 40 - 291 476 STONEVILLE 506 328 40 - 308 435 DES 422 326 41 - 309 480 DELCOT 311 317 40 - 343 442 OELCOT 390 308 39 - 324 KC 380 302 40 - 332 531 COKER 208 2 0 39 - 302 436 DELTAPINE 20 280 42 - 269 492 ARKOT 518 255 41 - 28445 STONEVILLE 112 227 42 - 297 456 TERRA C 40 180 42 -24 STONEVILLE 825 174 42 - 222 415 TEST MEAN 340 L.S 4 0. 1.05) L62 TABLE 5.' PERFORM ANCE OF COTTON VARIETIES AT SHORTER, ALA6BAM-Al 1987 lqd7 2-YR. AV* 3-YRa. AV. CO0KEW.R 130C- 69 057098 42 DELTAPINE 20 795 42 d 844 884 KC 3 80 770 39 911 956 MCNAIR 235 747 41 -8195 995 MCINA IR 220 743 40 864 .93%0 TI FCOT 56 733 40 861 11024 DELTAPINE' 90 71.2 39-Oo 880 987 DES- 119 71.1 43 874 COKER 139 706 41 859 888 DES 422 704 41low 792 8 29 GAT 81-225 704 41 874#a ST12N EV ILLE. 825 701 42 848 89 DELCOT 390 696 40 834 STONEVILLE 453 693 4340 COKER 315 685 42 lom797' 966 P0 3 682 40' ao COKER 81-613 682 42Z WW845lo DELTAPINE 41 676 45 831 926 DELTAPINE 50 675 39 803 904 COKER 208 654 49 8 ~9.53 TERRA C.30 654 40 STONEVILLE 506 652Z 42lo 756 912 STONEVIELLE 112 649 42 805 881 COKOER 113-6903 642 4 1 - o ARKOT 51.8 622 41 .0.833 4 TER RA C 40 609 4 L-olw ACALA 1517-75 559 378091 QELCOT 311 553 39 8091 DELCOT 344 525 39 763 PAYMASTER 1.45 466 .40 T 07 757 TEST M4EAN 673 L.wSo0.D (40 5)1162- L7 son_______ -10- TABLE 6-m PERFORMANCE OF COTTOIN VARIETIE'S AT MONROEVILLE, ALABAMA, 1987 1 T87 P A P ITN~ 2YR.A Vw I TNT /Arp = 3-.*YR. AV* f TNIT/Aro= IL COKER 130-6905 MCNAIR 235 COKER 139 PD0 3 COKER 208 T IFC OT 5.6 KC 380 MCNAIR 220 COKER 118-6903 COKER-81-613 DES -119 DELCOT 344 STOlNEVILLE 453 DELTAPINE 20 DELCOT 311 DELTAPINE 50 STONEVILLE 506 DES 422 DELTAPINE 90 DIELC OT 3 90 GAT 81-225 TERRA C 40 COKER 315 STONEVILLE 825 STONEVILLE'112 rERRA C 30 ARKOT 518 DELTAPINE 41 TEST MEAN U*S*0. (.00) (%V V. TtIAQ 19025 1,v0 13 994 989 959 946 913 1901 894 860 846. 839 839 835-- 826 825 787 778 774 761 740 729 721 648 645 42 41 40 41 42 40 41 40 41 41. 40 40 43 40 39 37 39 40 40 39 40 40 40 39 39 37 39 40 71 71 74 67 75 73 70 75 72 72 6.5 72, 76 70 73 74 71 69 66 78 70 69 65 70 71 66 74 65 744 728 753 735 7190 629 687 663 6 6 5 626 676- 686 663 688 629 619. 606 551 55D"6 .908 939 918 980 825 870 757 840 830 822 824 787 795 788 731 864 122 T oP. 117 L- T i A- L A-k.1 , own A-a 'W 7 ar L VAR T FTY Id . TABLE 7,. PERF-0RMAANCE OF COTTON VARIETIES AT BREWTON, ALABAMA, 1987 ?iL I~f EA I NES LL/iACR F KC 3 80 COKER 208 COKER 81-613 PD 3 T IECrwOT 5.6 COKER 130-6905 COKER 139 COKER 31.5 COKER 118-6903 DELCOT 390 MCNAIR 235 STONEVILLE 4,:53 DES 119 DES 422 STONEVILLE 825 GAT 81-225 DELCI-T 344. TERR A C 4'0 MCNAIR 220 DELCOT 311 DELTAPUNE 20 TEJPRA.C 30 ARKOT .1518 DELTAP INE 50' DELTAPINE 90 STONEVILLE 506 DELTAPINE 41 STONEVILLE 1.12 TEST MEAN L 4,So.D,* a0 5) .VAR IFTY mm 1,462 1,372 1,3-19 11,38 1,-r276 .1,272 1,265 1v, 244 1,230 1.1857 1,169 1,v161 1t,160 1,v-132' 1v 132 1, 125 1ip108 1,090 19,077~ 1,it073'- 1.9060- 1,v024 1,016 1,.0 0 2 986 884 40 39 41 40 39 40 39 40 40 3q 41, 44 39Q. 41 41 40 40 40 40 39 38 37 39 39 40 38 69 79 78 76 75 79 76 77 7q 79 72. 73 75 77 82 77 70 76 78 72 69 74 76 69 77' 67 1, 274 1,260 1,258 1,t19 5 11208 1*226 1, 093 1i.104 1t,158 1,-130 1,122 1,7 174 11,146 1tL07 11,90 1,9078 1,033 1,r0519 1,v02 2 1,t03 2 969 1,302 1,202 1,230 1,44 1 .075 1 115 1,048 1154 132 do"wommommo-domm PCT ="low MENNIMPOW 4WOMMONERAMM - *-C=M '1 40 V .0 1987 t T NT 3-YRo AV* LTMTtALqr- TABLE 8 PEPRFORMANCE OF COTTON VARTETIPS AT HEADLAND, ALABAMA, 1987 l9d7 2-YR,. AV. 3-YR. AV. MARITRY I AR 1N Fn NFSE -A/AC T iNT/Ar TERRA C 40 495 43 - - STONEVILLE 825 487 42 598 816 DES 422 454 45 - 506 787 ARKOT 518 452 44 - 550 COKER 208 448 44 -581 776 MCNAIR 220 444 40 - 519 737 TIFCOT 56 442 44 - 587- COKER 139 440 44 - 519 712 STONEVILLE 506 439 41 - 600 790 DELTAPINE 4t 436 46 - 531 841 DELTAPINE 20 431 421 535 764 DELTAPINE 93 431 42 514 876 MCNAIl 235 429 45 - 512 795 DELCOT 344 427 43 535M KC 380 417 40 602 813 DES 119 406 41 - 499- TERRA C 30 401 40 - STONEVIL..E 453 398 45 - - GAT 81-225 397 42 - 514 COKER 315 390 42 - 482 745 STONEVILLE 112 383 42' 530 733 DELCOT 390 379 43 - 45941 DELTAPINE 50 378 41 - 539 768 COKER 130-6905 367 42 - - DELCOT 311 366 44 - 524 750 qD 3 365 41 -amla COKER 81-613 350 44 - 520 - COKER 118-6903 341 43 - -m TEST MEAN 414 L.SoD. (.05) 90 -13- TABLE 9. PERFORMANCE OF LOTION VARIETIES IN ALABAMA# AVERAGE OF ALL L0CAIT- S VAR IETY~ 10j.LflL AI! L~lA.LLft ~~LUh1. ftwft ~ fwf a.. Jf.- EA RL INEi". 19A5-87 1907 198&--87 1qR'-R1 d4 U. TIFCOT 56 KC 386 DELTAPINE 90 COKER 139 MCNAIR 2*35 D)ELIAPINE 50 COJKER 208 MCNAIR 220 SIONEVILtE 1825 DELIAPINE 20 COKER 315 DES 422 DELI-APINE 41 SIONEVILL-E 506 STONE4VILLE 112 tELCOI 311 DES 119 GAT 8125 COKER 81-613 DELCOI 344 AftKOI 51t8 DELCOT 390 STOJNEVILLE 453 TERRA C 30 TERRA C 40 PO) 3, COKER 116-6903 COKER 130-6905 112 684 724 7 17 6/47 696 660 681t 662 692 606 647 607 620 69 653 1701 641 603 647 685 645 636 728 6815 750 72? 783 721 731 735 691t 720 709 711 694 6 73 695 6 5 5 688 667 677 733 710 102 69.3 672 664 THESE VARIETIES AT 2 LOCATIONS ONLY PAYMASTER 145 540 683 ACALA 1511-75 518t) 8190 8190 8156 038 035 023 823 813 1109 000 778 40 40 40 40 41 39 40 40 41 41 40 41 42 40 40 40 40 402 42 40 40 43 3 38 41 40 41 40 40 40 41 39 40 40 41t 41 41 41 42 40 40 40 41 41 42 40 40 40 744 40 40 40 40 41 39 40 40 41 41 41 41 43 40 40 40 3 8 38 83 82 82 85 8 3 84 816 84 84 82 62 83 82 82 8t 8. 82 65 8 5 84 81 86 84 60 82 82 84 83 87 83 87 65 86 89 87 89 89 88 8l7 87 87 86 86 85 86 6 A8 80 87 90 84 85 86 89 8.9 88f 88 86 88 8338 38 *~.Ww q wow -ww Table 10. Percentage oif Plants Sitowing Symptoms of~ Fusarium Wilt. Taltassee, Alabama SAvera~se wV t ercenta~o, Variety yr. 2 yr. 3 yr. iyr. 5Syr.7, 6 yr. * 7yr., A8yr.7 9jyr.. 1.0 lF yr __________1987 1986-87 1985-86 1984-85 1983-84 1982-83 1981-82 1980-81 1979-80 1978-7 19-8 McNair ?20 Coker 315 Deltapine 4.1 McNair 235 Stoneville 825 QDecot 311 Stoneville 506 Coker 208 Deltapine 90 Deltapinfe 50 DES 422 Deltapite 20 Stoneville 112 (i-I Coker 139 Coker- 81-613 Delcot 344 Delcot 390 DES 119 GdT 81-225 Tifcot 56 Arkot 518 Coker 118-6903 Coker 130-6905 KC 380 Terra (>30 Stoneville 453 SV 93 Duna 1002 PO 3 Sisco 772 Terra C-40 SV 13 DR 110 PiCt. 4-173 74.3 58.5 53.2 97.0 30.3 59.3 75.5 17.9 52.0 71.5 70.0 72.5 60.5 65.0 48.5 60.8 60.3 67.5 61.5 69.0 67.0 66.5 71.0 76.8 82.3 52.5 76.3 43.0 42.0 63.0 71.0 87.3 Pct. 60.0 43.8 35.8 80.5 20.6 41.6 60.3 23.0 46.9 43.6 52.5 48.6 49.6 406.6 30.3 46.4 42.3 48.9 S7.6 56.4 PC t. 47.9 31.1 26.8 82.2 14.8 30.5 54.2 15.5 33.5 30.7 35. 7 35.0 35.2 Pct. 37,3 30.6 21.9 71.4 12.3 24. 1 42.6 13.6 M.6 25.4 27. 9 28.2 Pct. 35.4 26.3 19.3 63.2 12.0 21.9 39.0 12.7 2.0 23.4 29. 5 Pct. 21.3 32.5 25.1 19.2 58.9 11.5 20.2 36.3 12'5 23.8 PC t. 28.5 22.9 16.9 52.6 10.0 17.9 30.8i Pct. 20. ?I 30.5 26.5 18.3 56.3 12.0 19.9 PC t. 30.0 26.5 17.8 55.8 Pct. 18.2 27.7 24.5 16.7 Pct. 27.5 Table 11. Fiber Properties of Cotton Varieties at Crossville, Alabama, 1987 Variety Micronaire Fibrograph Stelometer 5 2.57 a1IEl Reading In. In. gex Pct. Coker 139 4.9 0.49 1.06 19.95 7.5 Coker 208 5.0 .52 1.09 21.25 7.0 Coker 315 5.2 .53 1.12 20.45 7.3 Coker 81-613 4.8. .50 1.12 19.45 6.8 Coker 118-6903 4.8 .49 1.05 20.55 7.5 Coker 130-6905 4.5 .51 1.07 20.20 7.8 Deltapine 20 5.0 .54 1.12 23.25 7.8 Deltapine 41 5.0 .49 1.10 19.55 7.0 Deltapine 50 5.0 .49 1.07 20.30 7.5 Deltapine 90 4.9 .52 1.06 21.15 7.8 McNair 220 5.2 .48 1.07 19.60 7.8 McNair 235 5.0 .52 1.09 20.10 7.5 Stoneville 112 4.9 .47 1.05 18.25 7.5 Stoneville 453 4.8 .50 1.11 21.45 7.3 Stoneville 506 5.1 .48 1.06 20.00 8.0 StonevilIle 825 4.6 .53 1.15 20.85 7.5 Delcot 311 4.9 .52 1.09 19.60 7.8 Delcot 344 5S1 .50 1.11 19.20 7.0 Delcot 390 4.8 -. 49 1.07 18.75 7.8 PO-3 4.4 .51 1.08 20.00 7.8 DES 119 4.7 .53 1.11 24.40 7.0 DES 422 5.2 .50 1.07 21.30 7.3 Tifcot 56 4.7 .51 1.07 19.35 8.0 KC 380 4.8 .53 1.16 21.25 6.8 Arkot 518 5.2 .49 "1.08 22.10 7.5 GaT 81-225 4.8 .51 1.06 20.65 6.5 Terra C 30 5.1 .49 1.07 18.80 7.8 Terra C 40 5.0 .47 1.07 18.50 8.0 -16- Fiber Properties of Cotton Varieties at Prattville, Alabama, 1987 Variety Micronaire Fibrograph Stelometer 50% 2El Reading In. In. g/tex Pct. Coker 139 5.2 0.48 1.06 20.55 6.8 Coker 208 4.5 .50 1.10 21.85 7.3 Coker 315 3.8 .52 1.14 23.20 6.5 Coker 81-613 4.8 .54 1.13 21.85 7.0 Coker 118-6903 4.3 .52 1.11 22.55 5.8 Coker 130-6905 4.4 .49 1.07 20.85 6.8 Deltapine 20 4.4 .48 1.06 22.95 5.8 Deltapine 41 4.4 .50 1.07 22.05 7.3 Deltapine 50 5.0 .50 1.07 20.55 7.0 Deltapine 90 4.9 .51 1.06 19.80 8.0 McNair 220 4.7 .52 1.08 20.20 7.0 McNair 235 4.3 .49 1.08 19.70 7.0 Stoneville 112 4.9 .51 1.07 19.45 7.5 Stoneville 453 4.4 .51 1.06 23.65 6.3 Stoneville 506 4.5 -- 48 1.09 20.70 8.0 Stoneville 825 5.2 .50 1.07 17.90 6.8 Delcot 311 4.1 .52 1.07 23.90 8.0 Delcot 344 4.2 .53 1.13 23.20 6.5 Delcot 390 4.4 .50 1.08 22.95 7.0 PO-3 4.3 .53. 1.14 23.55 7.0 DES 119 4.5 .53 1.11 21.55 7.8 DES 422 4.1 .49 1.07 22.30 7.5 Tifcot 56 4.9 .50 1.06 23.35 7.0 KC 380 5.2 .48 1.06 21.25 6.8 Arkot 518 4.6 .51 1.14 20.25 6.5 GaT 81-225 4.6 .49 1.09 21.40 6.5 Terra C 30 4.7 .48 . 1.06 20.25 8.3 Terra C 40 5.0 .49 1.06 18.75 7.8 Table 12. Fiber Properties of Cotton Varieties at Brewton, Alabama, 1987 Variety Micronaire Fibrograoh Stelometer 50% .. 2.5% T1 El Reading In. n. Pct. Coker 139 3.3 0,51 1.10 20.30 6.8 Coker 208 3.7 .50 1.09 18.35 7.8 Coker 315 3.4 .54 1.17 21.45 6.5 Coker 81-613 3.5 .54 1.17 20.50 7.3 Coker 118-6903 3.4 .53 1.15 21.50 7.0 Coker 130-6905 3.2 .51 1.14 21.50 6.8 Deltapine 20 3.2 .50 1.06 18.25 10.0 Deltapine 41 3.2 .50 1.10 20.50 7.8 Deltapine 50 3.3 .51 1.13 19.15 8.5 Deltapine 90 3.7 ,51 1.10 22.90 7.5 McNair 220 3.4 .50 1.09 18.55 7.3 McNair 235 3.7 .50 1.10 21.45 7.8 Stonevi Ille 112 30 47 1.06 20.60 7.5 Stonevil le 453 4.1 .51 1.07 18.25 8.0 Stoneville 506 3.5 .50 1.12 19.90 9.0 Stoneville 825 3.5 .46 1.06 18.85 6.8 Delcot 311 3.4 .53 1.09 22.05 10.0 Delcot 344 3.3 .53 1.14 20.05 7.3 Delcot 390 -4.5 .54 1.12 21.65 8.8 P0-3 3.4 .54 1.14 21.40 6.5 DES 119 4.0 .50 1.08 21.45 9.5 DES 422 3.7 .51 1.12 20.00 8.0 Tifcot 56 3.6 .53 1.12 20.55 6.8 KC 380 3.8 .51 1.11 18.90 7.5 Arkot 518 3.2 .48 1.13 19.30 7.3 GaT 81-225 3.4 .51 1.08 20.85 8.0 Terra C 30 3.3 .50 1.10 18.40 8.5 Terra C 40 3.6 .51 1.11 18.90 10.3 -18- Table 13. Table 14. Sources of Seed for the 1987 Cotton Variety Tests Deltapine 41 Delta and Pine Land Co. Deltapine 90 Scott, Mississippi Deltapine 50 Deltapine 20 Stoneville 825 Stoneville Pedigreed Seed Co. Stoneville 506 Stoneville, Mississippi Stoneville 112 Stoneville 453 Coker 315 Coker's Pedigreed Seed Co. Coker 208 Hartsville, South Carolina Coker 81-613 Coker 139 Coker 130-6905 Coker 118-6903 Delcot 311 Delta Center Delcot 390 Portageville, Missouri Delcot 344 KC 380 Northrup King Co. McNair 235 Leland, Mississippi McNair 220 DES 422 Delta Branch Experiment Station DES 119 Stoneville, Mississippi PD-3 Pee Dee Experiment Station Florence, South Carolina Tifcot 56 Georgia Coastal Plain GAT 81-225 Experiment Station Tifton, Georgia Arkot 518 Cotton Branch Experiment Station Marianna, Arkansas Terra C-30 Terra International, Inc. Terra C-40 Memphis, Tennessee 19- RECOMMENDED COTTON VARIETIES FOR ALABAMA The list of recommended varieties given below was prepared by the author of this report and Louie J. Chapman, Extension Agronomist and Acting Department Head, based on variety test performance for at least 3 years. Varieties differ in performance at individual locations, so selection should be based largely on variety performance at a site that most nearly represents the grower's local situation. The recommended varieties are listed in order of 3-year average lint yield. Tifcot 56 KC 380 Deltapine 90 Coker 139 McNair 235 Deltapine 50 Coker 208 McNair 220 Stoneville 825* Deltapine 20 Coker 315 DES 422 Deltapine 41 Stonevil le 506 Stonevi lle 112 Delcot 311 DES 119+ Not suited for soils where fusarium wilt has been a problem. +Recommended conditionally since it has not been grown at all locations for 3 years. -20-