* Department of Agronomy and Soils U Departmental Series No. 61 E * Agricultural Experiment Station ? Auburn University U * Gale A. Buchanan, Director U Auburn University, Alabama U 1980 ALABAMA VARIETY REPORT February, 1981 1980 ALABAMA COTTON VARIETY REPORT 1 / A Report of the Performance of Cotton Varieties Tested at Nine Locations in Alabama During 1980 Wiley C. Johnsonr / The Alabama Cotton Variety Test is a continuing evaluation of available cotton varieties from private companies and state agricultural experiment stations. Breeding lines that are likely to be released as varieties are also tested. Tests are conducted on units of the Agricultural Experiment Station by Experiment Station personnel. Cultural practices are as generally recommended by Auburn University to farmers. Every effort is made to test the varieties and present the data 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 34.5 to 100 feet. Plots were two-row at Prattville, Headland, Belle Mina, and Crossville. Single row plots were used at the other locations. Cotton was planted during the optimum planting period at each location. Rainfall was adequate early in the season but deficient during July and August at most locations in 1980. The drouth was most severe at Winfield and at the E.V. Smith Research Center near Shorter (Macon County). July and August temperatures were considerably above normal thoughout Alabama. Insect control was generally adequate. I/January 1981 2 /Professor, Department of Agronomy and Soils Explanation of Data Harvest of Seed Cotton: Tests at Prattville, Brewton, Monroeville, Tallassee, and Belle Mina were harvested by a mechanical spindle picker. Tests at Winfield, Headland, Shorter, 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 per- centage 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. Fiber Properties: Because of the time required for the detailed determinations of the fiber properties, data presented in the current report are from 1979 samples. Fiber qualities were determined by the USDA Cotton Quality Spinning Laboratory, Knoxville, Tennessee. (a) Span length: This is the fiber length measured on the digital fibrograph. The figure given is the distance spanned by 2.5% of the fibers, where the initial point of scanning is 100%. This length, in inches, approximates classer's staple. (b) 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 metric measurement similar to Pressley strength except the figures are in centinewtons per tex. A centinewton is a measure of force and a tex is a size measurement of the fibers. The larger the T 1 , the stronger the fibers. Ej measures the percentage stretch before the fibers break. (c) 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 - 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 wilt was evaluated at the Plant Breeding Unit, Tallassee, by growing the varieties in fields with a high natural incidence of the fusarium wilt-root-knot nematode complex. Severity of the disease varies from year to year and also within the experimehtal area in the same year. Therefore, several years' data are necessary to realistically characterize a variety's wilt reaction. Stoneville 213, Hancock, Stoneville 825, and Vail 7 have consistently shown a high incidence of wilt. All other reported varieties that have been tested for at least 3 years have acceptable tolerance to furasium wilt. New and Experimental Varieties GaCot 79 is a frego bract cotton released in 1979 by the Georgia Agricultural Experiment Station and was first tested statewide in Alabama in 1980. Stonevill.e 506 is a recent release by the Stoneville Pedigreed Seed Co. It also was first tested throughout Alabama in 1980. Seed will be available for 1981 in very limited quantities. Coker 3113 was first entered for testing in 1980 as an experimental line. It has recently been released by the Coker's Pedigreed Seed Co. and named Coker 3131. GP 3774 and GP 3755 are early varieties from Texas developed and released by the G and P Seed Co. Delcot 311 was developed by the Missouri Agricultural Experiment Station and released in 1980. This is the first year it has been tested in Alabama. Deltapine 7148 and Coker 3114 are experimental lines of Delta and Pine Land Co. and Coker's Pedigreed Seed Co., respectively. It is the policy of the Auburn University Agricultural Experiment Station to evaluate a limited number of such experimental lines as a service to plant breeders and also to test potential varieties prior to their rel ease. Paymaster 303 and Acala SJ-5 are varieties adapted to the western areas of cotton production and are included in certain Alabama variety tests as national standard varieties. Statistical Analysis Appropriate analyses of the yield data were made. For each location, the variability in the test was calculated and expressed as a percentage of the test mean, coefficient of variation (C.V.). An indication of the difference between variety averages necessary to be a real difference is given for each location, Least Significant Difference (L.S.D..05). 5 Locations of Experiments Tennessee Valley Substation, Belle Mina - W.3. Webster, Superintendent Sand Mountain Substation, Crossville J.T. Eason, Superintendent Upper Coastal Plain Substation, Winfield - R.A. Moore, Superintendent Experiment Field, Prattville - F.T. Glaze, Superintendent E.V. Smith Research Center, Shorter - R. Akridge, Superintendent Plant Breeding Unit, Tatllassee - L.L. 'Walker,. Superintendent Experiment Field, Brewton -J .A. Pitts, Superintendent Experiment Field, Monroeville J.A. Pitts, Superintendent Wiregrass Substation, Headland - J .G. Starling, Superintendent. 6 Table 1. Performance of Cotton Varieties at Crossville, Alabama, 1980 1980yr v 3yr. av. Variety Lint/acre Lint percent Lint/acre Lint/acre Lb. Pct. Lb. Lb. DES 56 640 42 728 865 McNair 235 629 43 829 937 .Deltapine 55 619 44 753 819 GP 3774 608 40 Stoneville 603 606 43 793 849 Stoneville 506 594 41 Rex 713 590 38 718 814 Stoneville 825 570 42 694 824 Deltapine 41 569 44 714 766 McNair 220 565 42 462 617 Deltapine 7148 561 44 Coker 310 560 41 765 870 Hancock 547 41 745 878 GP 3755 547 40 Stoneville 213 543 43 681 790 Delcot 311 538 41 Coker 3113 535 44 Coker 304 532 42 789 894 Paymaster 303 529 40 681 770 Vail 7 521 42 549 694 Coker 420 518 40 745 843 Coker 3114 509 44 649 786 Coker 315 505 41 721 835 Deltapine 61 503 41 677 773 Acala SJ-5 405 40 389 571 GaCot 79 326 42 402 L.S.D. .05 73 C.V. =9.5% Table 2. Performance of Cotton Varieties at Belle[Ma, Alabama, 1980 1980 Variety Lint/acre Lint % % Earliness Lint/acre Lint/acre Lb. Pet. Pet. Lb. Lb. McNair 220 995 41 57 1,015 867 Stoneville 825 935 39 71 1,027 McNair 235 929 42 54 1,040 927 Delcot 311 925 39 78 Vail 7 902 39 73 909 322 Deltapine 41. 899 42 72 998 877 Stoneville 213 892 37 69 961 867 Del tapine 61 884 39 69 971 830 Deltapine 7148 884 40 83 Stoneville 506 882 37 76 Coker 304 348 40 72 919 806 Stoneville 603 838 38 73 945 868 Coker 3114 832 42 72 888 798 DES 56 807 38 67 958 Coker 310 794 38 78 912 772 Del tapi ne 55 786 41 77 889 815 Hancock 786 40 61 912 824 Coker 3113 770 41 59 Coker 315 765 39 69 942 .848 Coker 420 710 38 66 864 722 GP 3755 704 37 70 Rex 713 696 36 71 851 773 GP 3774 670 36 72 L.S .D. 88 ..C.V. = 7 .5% Table 3. Performance of Cotton Varieties at Winfield, Alabama, 1980 1980 2 yr. av. 3 yr. av. Variety Lint/acre Lint percent Lint/acre Lint/acre Lb. Pct. Lb. Lb. Stoneville 506 285 41 Deltapine 55 ? 242 43 301 288 McNair 235 234 43 304 282 Stoneville 213 221 42 278 295 Coker 3114 194 44 213 226 Coker 304 192 40 247 225 Coker 315 187 43 268 282 DES 56 184 41 277 289 GP 3774 182 40 McNair 220 170 43 243 252 Stoneville 825 165 42 285 255 Deltapine 41 157 43 369 318 Coker 420 153 39 237 222 GP 3755 150 41 Deltapine 61 142 41 247 234 Deltapine 7148 139 41 Delcot 311 134 39 Rex 713 133 40 252 305 Hancock 132 42 257 276 Stoneville 603 128 42 289 273 Coker 3113 120 44 Coker 310 119 39 234 226 Vail 7 109 43 303 272 L.S.D..05 97 C.V.. = 40.6% 9 Table 4. Performance of Cotton Varieties at Prattville, Alabama, 1980 1980 2 yr. av. 3yr. av. Variety Lint/acre Lint % % Earliness Lint/acre Lint/acre Lb. Pct. Pct. Lb. Lb. Stoneville 825 511 38 93 630 670 Stoneville 506 507 38 92 Delcot 311 470 37 93 McNair 235 458 39 76 631 683 Deltapine 26 450 41 91 577 648 Deltapine 55 434 39 89 581 647 GP 3774 428 35 86 DES 56 420 37 90 591 628 Deltapine 61 413 38 88 549 632 Stoneville 603 404 36 90 495 571 McNair 220 398 38 91 559 590 GP 3755 397 36 88 Coker 3114 392 41 88 530 567 Coker 310 386 37 89 520 598 Vail 7 386 38 91 503 582 Hancock 382 38 89 621 651 Coker 304 377 38 89 526 578 Deltapine 41 376 41 89 570 625 Coker 3113 373 40 85 Stoneville 213 370. 38 89 524 574 Coker 315 362 40 87 514 582 Rex 713 359 34 90 518 544 Coker 420 345 36 89 504 530 GaCot 79 218 38 68 L.S.D.. 0 5 74 V. C = 13.1% 10 Table 5. Performance of Cotton Varieties at Tallassee, Alabama, 1980 198023 Variety Lint/acre Lint % % Earliness Lint/acre Lint/acre Lb. Pct. Pct. Lb. Lb. Stoneville 825 741 42 83 634 534 Vail 7 705 41 75 601 623 McNair 235 675 42 73 664 578 Stoneville 213 673 41 78 648 551 Coker 304 639 40 79 635 636 Stoneville 603 629 42 74 523 557 Coker 310 612 40 67 610 629 McNair 220 602 40 73 581 627 Deltapine 61 600 40 64 599 583 Stoneville 506 597 41 82 Deltapine 26 592 42 71 562 548 GaCot 79 580 41 58 Deltapine 41 577 45 73 527 583 Coker 3113 576 43 60 GP 3755 560 39 82 Delcot 311 525 40 87 Coker 3114 519 43 68 585 506 DES 56 516 39 65 591 607 Deltapine 55 512 43 78 523 539 Hancock 502 41 73 497 505 Coker 315 493 40 70 626 618 Rex 713 483 37 83 491 508 Coker 420 432 38 65 452 416 GP 3774 429 39 86 L. SD. 05 162 C.V. = 20.1% 11 Table 6. Performance of Cotton Varieties at Shorter, Alabama, 1980 1980 2 yr.av. 3 yr. av. Variety Lint/acre Lint percent Lint/acre Lint/acre Lb. Pct. Lb. Lb. Stoneville 825 261 42 322 360 McNair 235 220 41 322 366 McNair 220 220 41 345 364 Coker 3113 218 44 Deltapine 26 217 43 273 294 GP 3774 212 40 Delcot 311 210 41 DES 56 201 40 317 337 Deltapine 55 199 42 291.302 Deltapine 41 197 43 274 291 Stoneville 213 197 41 296 339 Deltapine 61 176 40 259 284 Hancock 175 40 269 322 Coker 304 169 41 262 316 GP 3755 169 39 Vail 7 163 42 281 321 Coker 315 162 40 246 290 Coker 420 161 39 222 271 Coker 3114 161 42 223 277 Stoneville 603 159 40 290 337 Rex 713 157 37 254 320 Stoneville 506 152 40 GaCot 79 151 39 294 Coker 310 150 40 243 289 Paymaster 303 136 39 199 271 Acala SJ-5 90 40 166 213 L.S.D. .05 61 C.V. =24.0% 12 Table 7. Performance of Cotton Varieties at Monroeville, Alabama, 1980 1980 2 yr. av. 3 yr. av. Variety Lint/acre Lint percent Lint/acre Lint/acre Lb. Pct. Lb. Lb. Stoneville 825 532 40 605 597 Stoneville 213 524 39 590 591 Deltapine 61 512 38 598 588 Coker 3113 510 39 DES 56 509 37 564 570 Delcot 311 492 37 Coker 3114 491 39 538 563 Deltapine 26. 475 41 533 566 Hancock 474 38 578 574 Coker 304 470 37 553 562 Deltapine 55 460 39 529 529 Stoneville 506 460 36 Deltapine 41 454 41 550 545 Coker 315 435 38 539 551 Vail 7 423 39 582 586 McNair 235 422 38 449 499 Coker 310 416 37 540 548 GP 3774 405 35 Coker 420 403 36 571 540 McNair 220 398 38 574 569 Stoneville 602 395 37 536 583 GaCot 79 380 38 GP 3755 379 35 Rex 713 367 35 525 505 L.S.D. .05 54 C.V. = 8.5% 13 Table 8. Performance of Cotton Varieties at Brewton, Alabama, 1980 1980 Lya v. 3 yr. av. Variety Lint/acre Lint % % Earliness Lint/acre Lint/acre Lb. Pct. Pct. Lb. Lb. Coker 304 1,076 39 86 851 883 Delcot 311 1,036 39 94 Coker 315 1,026 43 90 849 857 Coker 3114 1,015 44 87 874 896 Coker 420 1,004 39 91 817 822 McNair 235 994 41 92 795 857 Coker 3113 978 42 91 Deltapine 26 964 41 90 815 892 DES 56 959 40 94 809 857 Stoneville 213 947 40 92 822 870 GP 3774 930 37 92 Vail 7 924 40 94 822 880 Stoneville 825 922 41 94 327 850 Stoneville 506 917 39 97 Del tapine 55 910 42. 93 756 773 Coker 310 898 39 90 784 813 Del tapine 41 884 42 93 766 740 McNair 220 881 39 93 691 750 Deltapine 61 862 39 95 816 808 Stoneville 603 857 41 95 733 808 Hancock 840 39 92 751 827 GP 3755 832 39 91 GaCot 79 767 41 83 Rex 713 671 33 92 616 655 Le.S.D. 05 149 O. .V. = 11.5% 14 Table 9. Performance of Cotton Varieties at Headland, Alabama, 1980 1980 3 yr. av. Variety Lint/acre Lint % % Earliness Lint/acre Lint/acre Lb. Pct. Pct. Lb. Lb. Deltapine 55 1,528 42 41 963 785 Coker 3113 1,512 41 48 Deltapine 41 1,492 41 43 1,058 884 Stoneville 213 1,464 39 48 1,016 803 Stoneville 825 1,428 40 47 992 803 Deltapine 26 1,427 40 39 951 725 DES 56 1,426 38 52 1,004 801 McNair 220 1,425 39 47 896 726 McNair 235 1,406 41 49 1,033 916 Coker 3114 1,393 41 44 883 704 Coker 304 1,385 40 55 959 772 Stoneville 506 1,382 38 44 Coker 310 1,365 38 46 1,052 805 Del tapi ne 61 1,364 38 38 921 717 Coker 420 1,340 38 47 951 783 GP 3774 1,330 39 64 Coker 315 1,288 39 49 875 804 Hancock 1,285 38 44 860 696 Delcot 311 1,283 38 48 Stoneville 603 1,278 37 45 928 774 Vail 7 1, 273 38 41 838 667 Rex 713 1,186 35 46 926 755 GP 3755 1,159 39 54 GaCot 79 1,047 35 25 L.S.D. 05 191 C.C.V. 1000% Tabl 10. Performance of Cotton Varieties in Alabama, average all locations No. Yield lint/acre Lint percent Variety Locations 1980 1979-80 1978-80 1980 1979-80 1978-80 Lb. Lb. Lb. Pc. Pctct. Pct McNair 235 9 663 675 672 41 41 40 Stoneville 213 9 648 646 631 40 39 39 Coker 304 9 ..632 638 630 40 39 39 Coker 315 9 580 631 630 40 40 40 Deltapine 41 9 623 647 625 42 42427 Stoneville 603 9 588 615 624 39 39 39 Hancock 9 569 610 617 40 40 39 Coker 310 9 589 629 617 39 39 39 Deltapine 55 9 632 621 611 42 41 41 Deltapine 61 9 606 626 606 39 39 39 Vail 7 9 601 599 605 40 40 39 McNair 220 9 628 596 596 40 40 39 Coker 3114 9 612 599 591 42 42 42 Rex 713 9 516 572 576 37 36 36 Coker 420 9 563 596 572 38 39 38 7 27 DES 56 9 629 649 619 39 39 39 7 57 Stoneville 825 9 674 668 612 41 40 40 7 67 Deltapine 26 6 687 618 612 41 40 41 7 16 Paymaster 303 2 332 440 521 40 38 38 Acala Sd-s 2 247 277 392 40 39 39 GaCot 79 7 496 348 39 38 6 GP 3774 9 577 38 8 Stoneville 506 9 642 39 GP 3755 9 544 38 7 Delcot 311 9 624 39 7 Coker 3113 9 621 42 8 Deltapine 7148 4 528 42 6 198-80 ]ccte i ~ Table 10. Table 11, Percentage of Plants Showing Symptoms of Fusar ium Wilt- Average wilt percentage 2-yr. 3-yr. 4-yr. y9-yr. Variety 1980 1979-80 1978-80 1977-80 1976-80 1973-80 1972-80 Auburn 56 34.4 31.2 24.4 22.3 18.5 22.6 21.2 Stoneville 213 68.8 66.7 50.2 48.7 42.2 47.1 45.3 Coker 310 35.2 35.1 27.4 25.6 22.8 26.3 24.5 Stoneville 603 29.8 25.1 20.5 21.8 18.4 19.2 19.4 Coker 304 38.0 30.3 23.7 22.3 19.4 23.4 23.0 Deltapine 55 26.4 22.2 16.4 19.4 17.2 22.0 21.5 Hancock 81.8 67.9 58.7 57.7 52.4 55.3 Deltapine 26 41.6 34.4 25.3 20.0 16.4 Deltapine 61 29.8 28.4 20.7 19.3 19.2 McNair 220 32.9 23.7. 8.0 17.6 15.1 Vail 7 54.4 49.8 41.7 40.8 38,6 Coker 315 44.2 35.1 25.9 26.1 Coker 420 36.8 26.7 20.1 21.1 Coker 3114 39.6 27.8 22.9 23.8 Rex 713 23.9 21.1 16.9 18.7 McNair 235 24.6 20.8 16.1 Deltapine 41 52.3 39.2 28.6 DES 56 35.5 30.7 Stoneville 825 82.8 67.0 Coker 3113 36.0 Delcot 311 25.2 Deltapine 7148 34.4 GaCot 79 31.8 GP3755 35.1 OP 3774 45.4 Stoneville 506 33.8. =DAata were taken from a field severely infested with the f usarium wilt fungus and root-knteaods Plant Breeding Unit, Tallassee, Alabama. 3-8- 2,Q1 17 Table 12. Fiber properties of Cotton Varieties at Belle Mina, Alabama, 1979 Span length Stelometer Variety 2.5% T El Micronaire In. cN/tex Pct. Units Brycot 4 1.06 17.61 8.35 4.40 Coker 304 1.13 18.46 7.30 4.30 Coker 310 1 17 18.43 7.80 4.47 Coker 315 1.17 18.95 7.34 4.35 Coker 420 1.11 18.23 8.43 4.40 Delcot 277 1.11 18.01 9.57 4.25 Deltapine 26 1.09 18.22 8.76 4.40 Deltapine 41 1.10 19.24 8.29 4.35 Deltapine 55 1.12 17.78 8.87 4.05 Deltapine 61 1.10 18.26 10.37 4.25 Deltapine 70 1.07 18.86 8.19 4.20 DES 24 1.10 18.48 8.79 4.60 DES 56 1.08 17.30 9.10 4.52 Dixie King III 1.07 17.66 8.08 4.15 Hancock 1.05 17.79 8.71 4.22 McNair 220 1.10 18.60 7.62 4.38 McNair 235 1.13 18.74 7.51 4.65 Rex 713 1.08 16.11 9.04 4.20 Stoneville 213 1.09 17.38 8.17 4.75 Stoneville 603 1.04 17.94 7.95 4.25 Stoneville 825 1.07 17.44 7.91 4.47 Vail 7 1.09 18.13 7.85 4.63 18 Table 13. Fiber Properties of Cotton Varieties at Winfield, Alabama, 1979 Span length Stelometer Variety 2.5% TI El Micronaire In. cN/tex Pct. Units Brycot 4 1.09 18.90 7.70 4.93 Coker 304 1. 16 20.13 8.97 4.65 Coker 310 3.13 19.50 8.94 4.95 Coker 315 1.17 19.29 9.10 4.65 Coker 420 1.13 21.30 8.67 4.70 Coker 3114 1.17 20.98 8.91 4.55 Delcot 277 1.17 21.17 10.94 4.25 Deltapine 26 1.11 20.41 8.60 4.67 Deltapine 41 1.11 21.08 6.19 4.90 Deltapine 55 1.12 18.75 9.87 4.55 Deltapine 61 1.15 19.27 9.90 5.00 Deltapine 70 1.12 20.44 9.73 4.60 DES 24 1.15 20.15 10.39 4.60 DES 56 1.08 18.72 9.80 4.75 Dixie King III 1.06 18.81 9.10 4.95 Hancock 1.02 18.38 9.26 4.75 McNair 220 1.08 20.86 8.08 4.85 McNair 235 1.12 18.96 9.04 4.85 Rex 713 1.06 18.34 9.74 4.50 Stoneville 213 1.10 18.90 9.67 5.05 Stoneville 603 1.09 19.31 8.60 4.95 Stoneville 825 1.13 18.55 7.43 5.10 Vail 7 1.12 18.68 8.12 4.73 19 Table 14. Fiber Properties of Cotton Varieties at Brewton, Alabama, 1979 Span length Stelometer Variety 2.5% Ti Ei Micronaire In. cN/tex Pct. Units Brycot 4 1.02 16.96 7.64 4.55 Coker 304 1.11 17.63 8.47 4.00 Coker 310 1.09 17.56 8.15 4.10 Coker 315 1.05 16.56 8.74 4.05 Coker 420 1.07 17.84 8.50 4.22 Coker 3114 1.11 20.49 7.65 3.85 Delcot 277 1.08 18.47 9.58 3.85 Deltapine 26 1.03 17.71 8.42 4.25 Deltapine 41 1.04 17.84 8.28 4.10 Deltapine 55 1.09 17.48 8.77 3.65 Deltapine 61 1.10 18.34 9.79 4.20 Deltapine 70 1.05 17.90 9.50 3.70 DES 24 1.06 17.70 9.85 4.40 DES 56 1.07 18.77 8.95 4.40 Dixie King III 1.04 17.54 8.64 4.35 Hancock 0.99 16.97 7.60 4.55 McNair 220 1.05 18.24 7.44 4.25 McNair 235 1.02 16.95 8.88 4.35 Rex 713 0.99 15.38 8.18 4.15 Stoneville 213 1.04 18.37 7.60 4.55 Stoneville 603 1.04 16.95 8.47 .4.10 Stoneville 825 1.05 17.29 8.40 4.75 Vail 7 1.01 16.70 7.37 4.40 20 Table 15. Fiber Properties of Cotton Varieties at Monroeville, Alabama, 1979 Span length Stelometer Variety 2.5% Ti El Micronaire In. cN/tex Pct. Units Brycot 4 1.04 17.30 9.05 4.10 Coker 304 1.07 17.69 10.43 3.65 Coker 310 1.05 16.75 8.08 4.15 Coker 315 1.13 17.37 9.26 3.95 Coker 420 1.07 17.90 9.43 3.63. Coker 3114 1.05 19.39 9.72 4.00 Delcot 277 1.02 17.29 8.63 3.75 Deltapine 26 1.06 17.24 9.46 4.22 Deltapine 41 1.09 18.24 9.82 3.55 Deltapine 55 1.08 17.00 9.17 3.95 Deltapine 61 1.07 18.87 9.69 4.20 Deltapine 70 1.06 17.50 11.40 4.05 DES 24 1.09 17.84 10.30 3.80 DES 56 1.05 19.01 8.56 4.35 Dixie King III 1.17 18.38 8.43 3.85 Hancock 1.12 18.24 9.43 3.82 McNair 220 1.07 18.82 8.60 4.20 McNair 235 1.12 20.40 8.98 4.40 Rex 713 1.08 16.61 9.39 4.15 Stoneville 213 1.09 15.58 9.57 4.20 Stoneville 603 1.02 16.41 8.47 3.90 Stoneville 825 1.10 17.77 8.89 3.85 Vail 7 1.07 16.88 9.56 4.35 21 Table 16. Fiber Properties of Cotton Varieties at Prattville, Alabama, 1979 Span length Stelometer Variety 2.5% Ti El Micronaire In. cN/tex Pct. Units Brycot 4 1.03 15.64 6.93 4.63 Coker 304 1.10 18.85 7.69 4.10 Coker 310 1.11 18.29 7.13 3.82 Coker 315 1.11 19.60 6.83 4.30 Coker 420 1.16 20.15 7.43 4.35 Coker 3114 1.09 21.24 7.22 4.20 Delcot 277 1.10 19.28 9.90 3.63 Deltapine 26 1.05 18.48 7.46 4.50 Deltapine 41 1.03 18.76 6.71 4.52 Deltapine 55 1.06 17.90 7.78 4.47 Deltapine 61 1.05 19.55 8.22 4.55 Deltapine 70 1.07 18.88 7.38 4.22 DES 24 1.10 19.22 8.04 4.65 DES 56 1.04 19.31 8.46 4.22 Dixie King III 1.03 18.33 7.46 4.35 Hancock 1.01 17.89 6.55 4.15 McNair 220 1.07 19.19 7.17 4.35 McNair 235 1.04 19.91 7.07 4.60 Rex 713 1.08 16.49 8.13 3.95 Stoneville 213 1.04 17.12 8.22 4.57 Stoneville 603 1.03 18.78 7.12 4.30 Stoneville 825 1.02 17.28 6.83 4.57 Vail 7 1.06 17.05 6.86 4.52 22 Table 17. Fiber Properties of Cotton Varieties at Tal lassee , Alabama, 1979 Span length Stelorneter Variety 2.5% Ti Ei Mi crona ire Brycot 4 Coker 304 Coker 310 Coker 315 Coker 420 Coker 3114 Delcot 277 Deltapine 26 Deltapine 41 Deltapine 55 Deltapine 61 Deltapine 70 DES 24 DES 56 Dixie King III Hancock McNair 220 McNair 235 Rex 713 Stoneville 213 Stoneville 603 Stoneville 825 Vail 7 In. 1. 09 1.10 1.12 1.15 1.15 1.08 1.17 1.06 1.05 1.10 1.12 1.06 1.12 1.07 1.06 1.02 1.08 1.11 1.09 1.07 1.04 1.11 1.11 cN/tex Pct. 7.50 7.33 8.33 8.75 8.36 8.19 10.44 8.57 7.66 8.26 10.06 8.62- 9.49 8.70 8.75 8.01 7.40 7.23 10.09 9.26 7.84 6.66 7.44 20. 14 20.20 21.64 20.00 22.01 21.14 20.78 21.54 20.27 19.68 10.01 19.86 19.54 20.26 20.22 19.54 21.35 19.67 17.63 17.71 19.74 20.13 19.09 Units 4.65 4.33 4.52 4.45 4.75 4.60 4.40 5.15 4.80 4.45 4.85 5.15 4.75 5.00 4.95 4.57 4.80 4.40 4.60 5.00 4.25 5.05 4.55 I id I r ~ r\ ~ nd k I 1 111 111 23 Source of Seed for the 1980 Cotton Variety Tests Deltapine 55 Deltapine 26 Delta and Pine Land Co. Deltapine 61 Scott, MS 38772 Deltapine 41 Deltapine 7148 Stoneville 213 Stoneville 603 Stoneville Pedigreed Seed Co. Stoneville 825 Stoneville, MS 38776 Stoneville 506 Coker 310 Coker 304 Coker's Pedigreed Seed Co. Coker 315 Hartsville, SC 29550 Coker 420 Coker 3114 Coker 3113 Delcot 311 Delta Center Portageville, MO 63873 McNair:235 Northrup King Co. McNair 220 Leland, MS 38756 Hancock West Tennessee Experiment Station Jackson, TN 38301 Vail 7 B ryco Jonesboro, AR 72401 DES 56 Delta Branch Experiment Station Stoneville, MS 38776 Information contained herein is available to all regardless of race, color, sex, or national origin