Sappenfield, W. P. (William Paul), 1923-2006.

University of Missouri: MOspace

AGRICULTURAL EXPERIMENT ST A TION COTT.ON VARI Ell ES FOR SOUTHEAST MISSOURI W. P. SAPPENFIELD Special Report 12 February, 1962 University of Missouri COTTON VARIETIES FO.R SOUTHEAST MISSOURI W. P. SAPPENFIELD During 1961, cotton variety yield trials were grown at only three locations: (1) Portageville, (2) Diehlstadt, and (3) Dry Bayou. Limited funds for the test-ing of commercial cotton varieties necessitated a critical reduction in the number and locations of the 1961 tests. However, the current information will be helpful for making good choices of cotton varieties to grow in 1962. For more detailed cotton variety information consult the Missouri Agricultural Experiment Station Special Report 8, "Cotton Variety Improvement for Southeast Missouri." Most varieties that are currently grown in the Mississippi delta were tested at Portageville. The sandy loam soil was lightly infested with verticillium wilt, fusarium wilt, and root-knot nematodes. Leaf damage by bacterial blight was se-vere but the dry weather during late summer and fall depressed this disease and little boll damage occurred . At Diehlstadt, where the sandy soil is heavily infested with fusarium wilt and root-knot nematodes, major attention was given to the testing of varieties re-sistant to these diseases. However, the severity of this disease complex was not as great as in past years. Bacterial blight was above normal in severity here and heavy damage to leaves and bolls was observed. The newly acquired verticillium wilt infested field at Dry Bayou will provide a better test field for evaluating commercial varieties and breeding material for tolerance to this increasingly important disease. This field is located near the levee about midway between Hayti and Portageville. On this loam soil, verticillium wilt was severe and yields of the less tolerant varieties were greatly reduced. Var-ieties found previously to be extremely susceptible were not grown here during 1961. Only the more tolerant varieties and new strains were tested. No tests were grown on gumbo or the heavy clay soils during 1961 but infor-mation obtained during 1958-60 for these areas is included in the tables. Cotton varieties recommended for southeast Missouri in 1962 are: Sandy Loam, Non-wilt Soils Rex Fox 4 Auburn 56 Deltapine Smooth Leaf Delfos 9169 Light Sandy Soils (fusarium wilt and root-knot nematode infested) Auburn 56 Rex Loam and Clay Loam Soils (verticillium wilt infested) Rex Auburn 56 Clay Soils (gumbo) Rex Fox4 Deltapine Smooth Leaf No new varieties were added to the recommended list for 1962. The deletion of Deltapine 15 and Dixie King 6 was approved during the Fifth Annual Crops Confer-ence, December 1-2, 1961. This conference is sponsored by the Missouri Agricul-tural Experiment Station, Department of Field Crops. Dixie King 6 was deleted because commercial planting seed will not be avail-able. Dixie King 6 should not be confused with the current "Dixie King" variety mar-keted by the Bobshaw Pedigreed Seed Company. Empire W.R. was not recommended. In the past years it has tended to pro-duce extra-fine and immature fiber in southeast Missouri. Additional spinning test information is needed. Though Empire is resistant to fusarium wilt, it has not pro-duced significantly higher or earlier lint yields than Auburn 56 in previous tests. Coker 124 has not shown significant superiority over recommended varieties. Under very fertile soil conditions, it may grow tall and become vegetatively rank. Two new varieties and two new Missouri-bred experimental strains were included in 1961 tests. These were Delta Queen, Stoneville 213, Mo. 58-3249, and Mo. 58-321A. Delta Queen, a new release of the Coker Pedigreed Seed Company, was late-maturing and tall-growing. Stoneville 213 was earlier-maturing and perhaps more productive than Stoneville 7. It is susceptible to fusarium wilt and root-knot. These new varieties were grown only at Diehlstadt and Dry Bayou during 1961. Fiber quality data are not yet available. Additional information will be .obtained in 1962. Mo. 58-3249 was grown in the three tests during 1961. Its components, Mo. 58-432 and Mo. 58-449, have been grown in tests during previous seasons. These two early strains, selected from Auburn 56, were composited to make up Mo. 58-3249 which is early-maturing and resistant to fusarium wilt and root-knot. It has demon-strated some tolerance to verticillium wilt but it is very susceptible to bacterial blight . Some seed may be available for 1963 plantings. Mo. 58-321A was grown only at Dry Bayou in 1961. It has shown some tolerance to verticillium wilt and may prove well adapted to loam and clay loam soils. It is not resistant to fusarium wilt. Its performance in earlier spinning tests has been superior to that of most commercial varieties. Planting seed will not be available in 1962. Cotton Variety Performance in Southeast Missouri. Total Lint Yields Earliness Bolls StaEle Spinning (Lbs./ Acre) Lint - 1st Picking Lint per Performance Variety (Lbs. I Acre) % Lb. 1/32 Yarn Strength 1959-61 1960-61 1961 1959-60 1960-61 1961 1960-61 19('!Q-61 1960-61 (Lbs.) Avg. AVK. Avg. Avg. Avg. Avg. Avg. 1960 Wilt-Free Sandy Loron Soils a/ 1. Rex 1009 1004- 902 832 779 694 35.3 64 35.5 111.0 2. Fox 4 948 966 993 686 623 703 36.0 69 35.5 128. 0 3. Auburn 56 932 914 954 720 641 743 36.1 65 35.0 118. 5 4. Delfos 9169 917 875 990 715 622 761 33.7 61 36 .0 119. 5 5. Deltapine-SL 915 890 807 650 573 553 37.8 73 35.5 126.5 6 . Empire W. R. 912 923 990 724 688 795 34. 4 57 36 .0 131. 5 7. Coker 124B 911 918 972 662 615 740 35.5 69 36.0 125.0 8. Deltapine 15 865 863 828 605 555 617 37.0 73 35.5 128.0 9. Coker lOOA 841 801 844 588 490 621 37. 1 69 36.0 122.5 10. Mo. 58- 3249 1030 1097 807 871 35. 8 64 35.5 121.5 11. Dixie King 950 1033 692 825 35. 9 56 35. 5 122.5 12. Stoneville 3 20 2 949 981 6'97 743 37.5 74 34.5 110. 0 13. Stoneville 7 948 828 605 569 37.0 67 35.5 123.5 14. Stardel 933 984 684 743 37.2 77 35.5 127. 0 15. Lankart 57 811 676 574 468 35.5 49 35. 5 106 . 5 16. Acala 4-42 600 566 418 407 36.4 55 36.0 142.5 Fusarium Wilt-Root Knot Infested b/ Sandy Soils 1959-61 1960- 61 1961 1959-61 1960- 61 1961 1961 1961 1961 Avg. Avg. Avg. Avg. 1. Rex 711 688 759 535 456 451 37.1 71 35.0 2. Auburn 56 693 636 683 486 387 327 36 .4 76 34.7 3. Mo. 58-3249 716 764 496 465 37.5 68 34.7 4. Dixie King 695 372 37-.-7 66 34.7 5. Delta Queen 617 334 37. 4 77 35. 7 6. Stoneville 213 610 375 37. 3 76 34.7 Verticillium Wilt Infested Loam Soils ~ 1. Rex 854 849 888 661 613 504 35.3 2. Auburn 56 772 760 874 579 503 502 35.2 3. Fox4 714 722 645 535 497 322 35.3 4. Deltapine-SL 708 708 791 513 467 352 35.6 5. Mo. 58-3249 891 965 667 627 35.8 6. Stoneville 7 838 765 513 354 35.9 7. Stoneville 213 848 423 36.5 8. Dixie King 726 267 35.3 9. Delta Queen 710 305 35.7 10. Mo. 58-321A 1003 633 36.5 "Gumbo" - Cla:I'. Soils d/ 1958-60 1960 1958-60 1960 1960 Avg. Avg. 1. Rex 620 462 548 36.6 2. Fox 4 510 352 430 35.7 3. Auburn 56 504 321 416 35.9 4. Deltapine-SL 474 237 394 38.6 5. Delfos 9169 409 166 316 34.1 6. Stoneville 7 231 38.2 a Sikeston, 1959; Portageville, 1960-61. b Diehlstadt and Malden, 1959; Diehlstadt, 1960-61. c Dorena and Cottonwood Point, 1959; Sikeston, 1960; Dry Bayou, 1961. d Bell City, 1958; Bragg City, 1959-60 (One picking, 1960), a Portageville, 1961: Date Planted: May 12. Fertilizer: 340 lbs. 15-15-15 sidedressed; May 18. Irrigation: none. Date First Picking; October 13. b Diehlstadt, 1961 : Date Planted: May 11. Fertilizer: 570 lbs. 15-15-15 sidedressed; 200 lbs. May 16, 200 lbs . June 16, and 170 lbs., July 22. Irrigations: 3 Date First Picking: October 4. c Dry Bayou : Date Planted: May 13. Fertilizer: 320 lbs. 10-20-20 sidedressed; May 19 and 50 lbs. ammonium nitrate, July 18. Irrigations: none. Date First Picking: October 13. 68 34.7 70 35.0 73 35.3 73 35.0 67 34.7 76 35.0 73 34.7 66 34.7 76 35.3 70 34.7 1960 1960 69 36.7 76 36.3 74 36.7 81 36.7 70 37.0 80 36.7 

Cotton varieties for southeast Missouri

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