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Sett weight effects on time of tuber formation and on tuber yield characteristics in water yam (Dioscorea alata L.)

Published online by Cambridge University Press:  27 March 2009

I. C. Onwueme
I. C. Onwueme
Affiliation:
Plant Science Department, University of Ife, Ile-Ife, Nigeria
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Summary

Setts of water yam (Dioscorea alata) weighing 350, 100, or 20 g were grown in the field. Tuber formation occurred in 50% of the plants at 8, 9·2, and 11 weeks after planting respectively, thus showing delayed tuber formation as sett weight decreased. Leaf area per plant and tuber yield per plant decreased with decreasing sett weight, but the tuber multiplication ratio increased with decreasing sett weight. There was a high coefficient of variation for tuber yield per plant and for leaf area per plant. It is suggested that the delayed tuber formation for small setts may be partly responsible for the low tuber yield per plant observed.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 91 , Issue 2 , October 1978 , pp. 317 - 319
Copyright
Copyright © Cambridge University Press 1978

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References

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