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Harvest Timing, Bur Extracting and Weathering Effects on Cotton Fiber and Yarn Quality

E.F. Hequet, R. Boman, M. Kelley, and A. Brashears

ABSTRACT

The objectives of this project were to document the effects of harvest timing (with harvest-aid crop termination) on field-weathering losses, cotton fiber and seed quality, and yield in the Texas High Plains. A field near Lubbock planted to a storm-proof variety (Paymaster 2326RR) was used. Treatment structure included harvest-aid (CottonQuik and Ginstar followed by Cyclone) termination versus freeze termination, along with varied harvest dates (ranging from October 4 through January 8 in 2001-02). Field plot layout was a split-plot design with harvest dates as main plots and with field cleaning vs. no field cleaning as subplots. Three replications of treatments were used in a randomized complete block design. This allowed the determination of main effects (factors) of weathering (harvest date) and field cleaning (no field cleaner vs. field cleaner) and the possible interactions. Main plot size was 8 40-inch rows, with 4-row subplots. Plot lengths were variable due to circular LEPA center-pivot rows (0.4 to 0.7 acres/sub plot).





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Document last modified April 16, 2003