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Response of Cotton (Gossypium hirsutum) to Coastal Bermudagrass (Cynodon dactylon) Density in a No-tillage System

  • William K. Vencill (a1), Luis J. Giraudo (a1) and George W. Langdale (a1)

Field experiments were established in 1989 and 1990 at the Southern Piedmont Conservation Research Center near Watkinsville, GA, to determine effects of coastal bermudagrass density on cotton in a conservation tillage system. Cotton height, canopy width, leaf area indices, and seed cotton yields were determined at coastal bermudagrass densities of 0 to 3600 kg ha−1 as achieved by herbicide inputs. Soil water measurements were recorded in cotton plots with a range of coastal bermudagrass densities using time domain reflectometry. Cotton growth and yields were reduced by coastal bermudagrass competition both years of the study. At the highest coastal bermudagrass density of 3600 kg ha−1, cotton height was reduced compared to cotton alone as early as 5 wk after planting. Seed cotton yields were reduced 25% at the highest coastal bermudagrass densities both years of the study. At the 15-cm soil depth, coastal bermudagrass significantly reduced soil water in cotton. Soil water in cotton at 30, 45, and 60 cm was not affected by coastal bermudagrass.

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1. Brown, R. H. and Blazer, R. E. 1968. Leaf area index in pasture growth. Herbage Abstracts 38:19.
2. Bryson, C. T. 1989. Economic losses due to weeds in southern states. Proc. South. Weed Sci. Soc. 42:385424.
3. Carreker, J. R., Wilkinson, S. R., Barnett, A. P., and Box, J. E. 1977. Soil and water management systems for sloping land. Agric. Res. Serv.—South. Region (A77. 15:S–160). 76 pp.
4. Constable, G. A. and Gleeson, A. C. 1977. Growth and distribution of dry matter in cotton (Gossypium hirsutum L.). Aust. J. Agric. Res. 28:249256.
5. Crosson, P. 1981. Conservation tillage and conventional tillage: a comparative assessment. Soil Conserv. Soc. Am., Akeny, IA. 35 pp.
6. Grantz, D. A., Perry, M. H., and Meinzer, F. C. 1990. Using time-domain reflectometry to measure soil water in Hawaiian sugarcane. Agron. J. 82:144146.
7. Green, J. D., Murray, D. S., and Stone, J. F. 1988. Soil water relations of silverleaf nightshade (Solanum elaeginifolium) with cotton (Gossypium hirsutum). Weed Sci. 36:740746.
8. Hillel, D. and Talpoz, H. 1976. Simulation of root growth and its effects on the patterns of soil water uptake by a non-uniform root system. Soil. Sci. 121:307312.
9. Holm, L. G., Plucknett, D. L., Pancho, J. V., and Herberger, J. P. 1977. Pages 2531 in The World's Worst Weeds—Distribution and Biology. Holm, L. G., Plucknett, D. L., Pancho, J. V., and Herberger, J. P., eds. Univ. of Hawaii Press, Honolulu, HI.
10. Jordan, W. R. 1986. Water deficits and reproduction. Pages 6373 in Cotton Physiology. Meuney, J. and Stewart, J. M., eds. The Cotton Foundation, Memphis, TN.
11. Radosevich, S. R. and Holt, J. S. 1984. Pages 139193 in Weed Ecology: Implications for Vegetation Management. Radosevich, S. R. and Holt, J. S., eds. John Wiley and Sons, New York.
12. Radosevich, S. R. 1987. Methods to study interaction among crops and weeds. Weed Technol. 1:190198.
13. Riffle, M. S., Murray, D. S., Stone, J. F., and Weeks, D. L. 1990. Soil-water relations and interference between devil's claw (Proboscidea louisianica) and cotton (Gossypium hirsutum). Weed Sci. 38:3944.
14. Taylor, H. M. and Klepper, B. 1978. The role of rooting characteristics in the supply of water to plants. Adv. Agron. 30:99128.
15. Topp, G. C. and Davis, J. L. 1985. Measurement of soil water content using time-domain reflectometry: A field evaluation. Soil Sci. Soc. Am. J. 49:1924.
16. Topp, G. C., Davis, J. L., and Annan, A. P. 1982. Electromagnetic determination of soil water content using time domain reflectometry: 1. Applications to water fronts and steep gradients. Soil Sci. Soc. Am. J. 46:672678.
17. Watson, D. J. 1958. The dependence of net assimilation rate on leaf area index. Ann. Bot. 22:3754.
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Weed Science
  • ISSN: 0043-1745
  • EISSN: 1550-2759
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