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Effects of inflorescence removal on seed yield performance of field beans (Vicia faba) under different shading treatments

Published online by Cambridge University Press:  27 March 2009

W. Aufhammer  and
I. Götz-Lee
W. Aufhammer
Affiliation:
Institute for Agronomy and Crop Science (340), University of Hohenheim, Fruwirthstr. 23, 7000 Stuttgart 70, German Federal Republic
I. Götz-Lee
Affiliation:
Institute for Agronomy and Crop Science (340), University of Hohenheim, Fruwirthstr. 23, 7000 Stuttgart 70, German Federal Republic
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Summary

Effects of inflorescence removal under different plant densities and degrees of shading on seed yield of field beans (Vicia faba L.) were investigated. Two indeterminate cultivars were used in field experiments for two seasons (1985 and 1986). The hierarchy within the generative storage system of field bean plants was manipulated by removal of inflorescences at various growth stages and nodes.

Removal of the inflorescences of nodes 1–3 (counted from the base upwards) caused about 30% loss of seed yield potential compared with the control but compensatory increases in seed yield were found, differing with plant density and duration of shading. Under favourable growing conditions (no shading, 20 plants/m2), overcompensation occurred, giving a mean seed yield up to 40% more than in controls.

Removal of all inflorescences above the ninth flowering node did not significantly reduce seed yield as plants completely compensated for the restriction on yield imposed.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 113 , Issue 3 , December 1989 , pp. 317 - 323
Copyright
Copyright © Cambridge University Press 1989

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References

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