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Competition of Spreading Dayflower (Commelina diffusa) with Rice (Oryza sativa)

Published online by Cambridge University Press:  12 June 2017

Roy J. Smith Jr.
Roy J. Smith Jr.*
Affiliation:
Agric. Res. Serv., U.S. Dep. Agric., Stuttgart, AR, 72160
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Abstract

Rough-rice yield of drill-seeded paddy rice (Oryza sativa L. ‘Lebonnet’ and ‘Starbonnet’) at stands of 215 to 270 plants/m2 at Stuttgart, Arkansas were reduced 18% by season-long competition of spreading dayflower (Commelina diffusa Burm. f. ♯3 COMDI) at a density of 22 plants/m2. Competition durations of 20, 40, 60, or 80 days did not reduce rice yields. None of the durations of competition affected head-rice yields (percent whole milled kernels) or germination of rice seed.

Keywords

Weed biologyweed controlweed interferenceCOMDI
Type
Weed Biology and Ecology
Information
Weed Science , Volume 32 , Issue 1 , January 1984 , pp. 116 - 119
Copyright
Copyright © 1984 by the Weed Science Society of America 

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References

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