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Spotted Spurge (Euphorbia maculata) Interference with Cotton (Gossypium hirsutum)

Published online by Cambridge University Press:  12 June 2017

Mohammad T. Bararpour
Affiliation:
Dep. Agron., Univ. Arkansas, Fayetteville, AR 72701
Ronald E. Talbert
Affiliation:
Dep. Agron., Univ. Arkansas, Fayetteville, AR 72701
Robert E. Frans
Affiliation:
Dep. Agron., Univ. Arkansas, Fayetteville, AR 72701

Abstract

Field studies were conducted from 1988 through 1990 in Fayetteville, AR, to measure competitiveness of spotted spurge in cotton. Population levels were established by transplanting seedlings from other field areas. There was a positive linear relationship between cotton boll numbers and seed cotton yield. Percent reduction in cotton height, leaf area, dry weight, boll numbers, and seed cotton yield increased as spotted spurge densities increased. Seed cotton yield reduction was 47, 57, and 85% for spotted spurge densities of 5, 10, and 50 spotted spurge plants m–1 of row.

Type
Weed Biology and Ecology
Copyright
Copyright © 1994 by the Weed Science Society of America 

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References

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