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Effects of Plant Density and Thinning on High-Yielding Dry Beans (Phaseolus vulgaris) in Mexíco

Published online by Cambridge University Press:  03 October 2008

Aguilar M. Immer ,
R. A. Fischer  and
Joshue Kohashi S.
Aguilar M. Immer
Affiliation:
Botany Department, Graduate College, National School of Agriculture, Chapingo, Mexico
R. A. Fischer
Affiliation:
Botany Department, Graduate College, National School of Agriculture, Chapingo, Mexico
Joshue Kohashi S.
Affiliation:
Botany Department, Graduate College, National School of Agriculture, Chapingo, Mexico
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Summary

The influence of leaf area and inter-plant competition on the growth and yield of a crop of high-yielding dry beans (Phaseolus vulgaris L.) in central Mexico was studied, using density and thinning treatments. The highest seed yield (4210 kg/ha at 14% moisture) was obtained with the highest density (28·8 plants/m2). Thinning showed that pods/plant was sensitive to inter-plant competition between 36 and 78 days after seeding (first flower at 50 days), but seeds/pod, and especially seed weight, were not sensitive. It is suggested that the close positive relation between yield and leaf area duration derives from the influence of photosynthate supply upon pod number.

Type
Research Article
Information
Experimental Agriculture , Volume 13 , Issue 4 , October 1977 , pp. 325 - 335
Copyright
Copyright © Cambridge University Press 1977

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