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Influence of Cultivar Height on Competitiveness of Cotton (Gossypium hirsutum) with Johnsongrass (Sorghum halepense)

Published online by Cambridge University Press:  12 June 2017

David C. Bridges  and
J. Mike Chandler
David C. Bridges
Affiliation:
Dep. Agron., Univ. Georgia, Experiment, GA 30212
J. Mike Chandler
Affiliation:
Dep. Soil and Crop Sciences, Texas Agric. Exp. Stn., College Station, TX 77843. TAES J. No. 22936
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Abstract

Research was conducted from 1983 through 1986 to compare the competitiveness of three cotton cultivars of different height with johnsongrass. Cultivars evaluated were: ‘1209-619-7’, ‘TAMCOT SP37-H’, and 'Stoneville 213’, which had an average height at maturity of 66, 122, and 168 cm, respectively. Each cultivar was grown with johnsongrass densities of 0, 4, and 6 plants/6 m of row with a 1-m row spacing. Johnsongrass biomass data confirmed that all three cultivars did compete with johnsongrass, but regression analyses using cultivar as a covariate revealed no difference in the competitiveness of the three cultivars.

Keywords

Cotton, Gossypium hirsutum Ljohnsongrass, Sorghum halepense (L.) Pers. #3 SORHACotton varietiesheightinterspecific competitionintraspecific competitionweed biomassSORHA
Type
Weed Biology and Ecology
Information
Weed Science , Volume 36 , Issue 5 , September 1988 , pp. 616 - 620
Copyright
Copyright © 1988 by the Weed Science Society of America 

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References

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