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Inheritance of Cowpea Yields under Different Soil Conditions in Papua New Guinea

Published online by Cambridge University Press:  03 October 2008

W. Erskine  and
T. N. Khan
W. Erskine
Affiliation:
Faculty of Agriculture, University of Papua New Guinea, Box 4820, University PO, Papua New Guinea
T. N. Khan
Affiliation:
Faculty of Agriculture, University of Papua New Guinea, Box 4820, University PO, Papua New Guinea
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Summary

Broadsense heritability, and correlations of grain yield and related characters, were estimated in three crosses under two levels of soil fertility, which profoundly affected heritability of height and seed weight. Grain yield exhibited heritability of 51–81%, and in one cross significant heterosis in F2. Amongst yield-related characters only pods/plant and seeds/pod were both correlated to yield, and also lacked negative genotypic correlations with other economic characters. However, direct selection for grain yield was considered more efficient than indirect selection using yield-related characters.

Type
Research Article
Information
Experimental Agriculture , Volume 14 , Issue 1 , January 1978 , pp. 23 - 28
Copyright
Copyright © Cambridge University Press 1978

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References

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