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Common Bermudagrass (Cynodon dactylon) Competition in Cotton (Gossypium hirsutum)

Published online by Cambridge University Press:  12 June 2017

Steven M. Brown ,
Ted Whitwell  and
Joe E. Street
Steven M. Brown
Affiliation:
Agron. & Soils Dep., Ala. Agric. Exp. Stn., Auburn Univ., AL 36849
Ted Whitwell
Affiliation:
Agron. & Soils Dep., Ala. Agric. Exp. Stn., Auburn Univ., AL 36849
Joe E. Street
Affiliation:
Mississippi State Univ., Delta Branch Exp. Stn., Stoneville, MS 38776
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Abstract

Experiments were conducted to evaluate effects of various densities of bermudagrass [Cynodon dactylon (L.) Pers. ♯ CYNDA] in cotton (Gossypium hirsutum L. ‘Stoneville 213’) during the initial and second seasons following grass establishment and to evaluate bermudagrass competition in three cotton row spacings. During the season of grass establishment, densities of 1 to 16 plugs/7.5 m of cotton row had minimal effects on yield. Established, perennated bermudagrass was much more competitive. During second-season competition, 1 plug/7.5 m had formed a 76% ground cover and reduced yields by 600 kg/ha (25%) or more. The highest densities reduced yields 60 to 80%. In separate experiments, a cotton row spacing of 0.5 m reduced bermudagrass ground cover compared to 1.5 m row spacing.

Keywords

Row spacingweed densityCYNDA
Type
Weed Biology and Ecology
Information
Weed Science , Volume 33 , Issue 4 , July 1985 , pp. 503 - 506
Copyright
Copyright © 1985 by the Weed Science Society of America 

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References

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