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Effects of Water, Nitrogen and Competition on Growth, Yield and Yield Components of Field-grown Tepary Bean

Published online by Cambridge University Press:  03 October 2008

Suzanne C. Nelson ,
Gary P. Nabhan  and
Robert H. Robichaux
Suzanne C. Nelson
Affiliation:
Department of Plant Sciences, University of Arizona, Tucson, Arizona 85721, USA
Gary P. Nabhan
Affiliation:
Desert Botanical Garden, Phoenix, Arizona 85008, USA
Robert H. Robichaux
Affiliation:
Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, Arizona 85721, USA
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Summary

The effects of water and nitrogen on growth, yield and yield components of tepary bean (Phaseolus acutifolius) were evaluated at Tucson, Arizona in 1987 and the effects of water and intercrop competition with Sonoran panicgrass (Panicum sonorum) in 1988. Total shoot biornass and reproductive yield were significantly reduced by lack of water in both seasons. Addition of nitrogen had no significant effect on total shoot biomass or reproductive yield in 1987. Intercrop competition significantly reduced total shoot biomass and reproductive yield of tepary bean in 1988. Yield component responses varied slightly depending on treatment and year.

Type
Research Article
Information
Experimental Agriculture , Volume 27 , Issue 2 , April 1991 , pp. 211 - 219
Copyright
Copyright © Cambridge University Press 1991

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