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Selective Chemical Control of Cocklebur in Cottonseed

Published online by Cambridge University Press:  12 June 2017

James E. Smith
Affiliation:
Dep. of Plant Path, and Weed Sci., Mississippi State Univ., State College, Mississippi
A. W. Cole
Affiliation:
Dep. of Plant Path, and Weed Sci., Mississippi State Univ., State College, Mississippi

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.

Type
Research Article
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

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