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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

Literature Cited

1. Adair, C. R., Bollick, C. N., Bowman, D. H., Jodon, N. E., Johnston, T. H., Webb, B. D., and Atkins, J. G. 1973. Rice breeding and testing methods in the United States. Pages 22–77 in U.S. Dep. Agric., Agric. Handb. 289. 154 pp.Google Scholar
2. Arkansas Cooperative Extension Service. 1982. Rice Production Handbook. Misc. Pub. 192 (Rev.): 48 pp.Google Scholar
3. Eastin, E. F. 1981. Weed management systems for U.S. rice. Pages 539–547 in Pimentel, D., ed. Handbook of Pest Management in Agriculture Vol. III, CRC Press, Inc., Boca Raton, FL.Google Scholar
4. Holm, L. G., Plucknett, D. L., Pancho, J. V., and Herberger, J. P. 1977. The World's Worst Weeds, Distribution and Biology. Univ. Press Hawaii, Honolulu, 609 pp.Google Scholar
5. Smith, R. J. Jr. 1968. Weed competition in rice. Weed Sci. 16:252–255.CrossRefGoogle Scholar
6. Smith, R. J. Jr. 1974. Competition of barnyardgrass with rice cultivars. Weed Sci. 22:423–426.Google Scholar
7. Smith, R. J. Jr. 1975. Herbicides for control of Leptochloa panicoides in water-seeded rice. Weed Sci. 23:36–39.Google Scholar
8. Smith, R. J. Jr. 1981. Herbicide programs for weed control in rice. Agric. Res. Results. Sci. Ed. Admin., U.S. Dep. Agric. ARR-S-8:52 pp.Google Scholar
9. Smith, R. J. Jr. 1983. Competition of bearded sprangletop (Leptochloa fascicularis) with rice (Oryza sativa). Weed Sci. 31:120–123.Google Scholar
10. Smith, R. J. Jr., Flinchum, W. T., and Seaman, D. E. 1977. Weed control in U.S. rice production. U.S. Dep. Agric., Agric. Handb. 497. 78 pp.Google Scholar
11. U.S. Department of Agriculture. 1952. Testing Agricultural and Vegetable Seeds. U.S. Dep. Agric., Agric. Handb. 30. 440 pp.Google Scholar
12. U.S. Department of Agriculture. 1979. The biologic and economic assessment of 2,4,5-T use in the production of rice in the United States. Pages 217–268 in The Biologic and Economic Assessment of 2,4,5-T. U.S. Dep. Agric. Tech. Bull. 1671.Google Scholar