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Estimating Leaf Areas of Cowpea and Soyabean Using Dry Weights of Terminal Leaflets

Published online by Cambridge University Press:  03 October 2008

D. Nangju  and
S. B. C. Wanki
D. Nangju
Affiliation:
International Institute of Tropical Agriculture (IITA), Ibadan, Nigeria
S. B. C. Wanki
Affiliation:
International Institute of Tropical Agriculture (IITA), Ibadan, Nigeria
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Summary

Leaf area index is an important parameter in many agronomic and physiological studies, but its determination in cowpea (Vigna unguiculata) and soyabean (Glycine max) is difficult and time consuming. A simple and rapid method is described in which dry weights of the middle leaflets were used to predict leaf areas of cowpea and soyabean. This method was based on results which indicated that leaf dry weights were highly correlated to leaf areas and that the ratio between leaf area of the terminal leaflet and total area of a trifoliate leaf was constant, at least in some cultivars, giving ratios of 0.37 for cowpea and 0.33 for soyabean.

Type
Research Article
Information
Experimental Agriculture , Volume 16 , Issue 2 , April 1980 , pp. 149 - 151
Copyright
Copyright © Cambridge University Press 1980

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References

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