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Effect of Day-Length and Water on Nodulation of Cowpea (Vigna Unguiculata (L.) Walp.) in Ghana

Published online by Cambridge University Press:  03 October 2008

E. V. Doku
E. V. Doku
Affiliation:
Department of Crop Science, University of Ghana, Legon
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Summary

Nodule and plant dry weight of five photoperiodically different cowpea varieties increased with increasing day-length. There were no effective nodules on any varieties in 8-hour days and the response of nodulation to day-length was greater than plant dry weight. Nodule and plant dry weight also increased with increasing availability of water, but at the highest watering rate nodule weight was significantly lower under long than short days. Cowpea should nodulate well under tropical day-lengths provided enough water is available.

Type
Research Article
Information
Experimental Agriculture , Volume 6 , Issue 1 , January 1970 , pp. 13 - 18
Copyright
Copyright © Cambridge University Press 1970

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