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Flower drop and fruit set in field beans, Vicia faba L.

Published online by Cambridge University Press:  27 March 2009

A. E. Kambal
A. E. Kambal
Affiliation:
Faculty of Agriculture, University of Khartoum, Sudan
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Summary

The percentage of the total buds produced that dropped before reaching the mature pod stage was estimated as 86·7% in Baladi, a local strain of field beans, and 93·7% in Giza 1, a variety introduced from Egypt. The drop was appreciable both before and after fertilization. There were indications that both inadequate insect pollination and inter-ovary competition contributed to the reduction of pod yield.

Self pollen was detected on the stigma in the bud stage 2–3 days before the flower was open. Estimates of natural cross-fertilization ranged from 35·8 to 42·1%, indicating that self-pollination did not lead to complete self fertilization. Hand manipulation of the flowers increased pod set in most of the cases but the line 1W did not respond to this treatment and proved to be highly autofertile.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 72 , Issue 1 , January 1969 , pp. 131 - 138
Copyright
Copyright © Cambridge University Press 1969

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