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Flower and pod production in Phaseolus vulgaris

Published online by Cambridge University Press:  27 March 2009

R. C. Binnie  and
P. E. Clifford
R. C. Binnie
Affiliation:
Agricultural Research Institute of Northern Ireland, Hillsborough, Co. Down, Northern Ireland
P. E. Clifford
Affiliation:
Botany Department, The Queen's University of Belfast, Belfast, Northern Ireland
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Summary

A series of glasshouse and growth-cabinet experiments were carried out to investigate aspects of flower and pod production in Phaseolus vulgaris L. (French bean). Abscission of flowers and immature pods varied between 45 and 80% in the seven cultivars tested, with flowers which opened first being most likely to produce mature pods. Seed yield was only slightly reduced and sometimes increased by the removal of opened flowers for periods of up to 15 days from the start of anthesis depending on the conditions under which plants are grown. It was demonstrated that plants compensated for flower removal by setting pods from flowers which opened later. Similarly, when opened flowers were removed from alternate nodes plants compensated by setting pods from flowers which opened on nodes not being deflowered.

The physiological basis for premature abscission of reproductive structures in grain legumes is discussed.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 97 , Issue 2 , October 1981 , pp. 397 - 402
Copyright
Copyright © Cambridge University Press 1981

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