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Selective Chemical Control of Cocklebur in Cottonseed
Published online by Cambridge University Press: 12 June 2017
Abstract
Several chemicals were evaluated for their potential use in selectively killing cocklebur (Xanthium pensylvanicum Wallr.) seed in cocklebur-cottonseed (Gossypium hirsutum L.) mixtures. Reduction in cocklebur embryo viability from 64 to 100%, without injury to cottonseed, resulted from soaking seed in: (a) 20% ethyl or methyl acetate and 80% water for 3 to 15 min; (b) 35% methanol, 15% glacial acetic acid, and 50% water for 3 to 15 min; or (c) 50% methanol or ethanol, 20% glacial acetic acid, and 30% water for 15 to 30 sec. Evaluations of injury were based on tetrazolium tests, standard germination, germination in soil, and seedling dry weight.
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- Copyright © Weed Science Society of America