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The effect Of insect pollination on plant development and seed production in winter oil-seed rape (Brassica napus L.)

Published online by Cambridge University Press:  27 March 2009

Ingrid H. Williams
Affiliation:
Rothamsted Experimental Station, Harpenden, Hertfordshire, AL5 2JQ
A. P. Martin
Affiliation:
Rothamsted Experimental Station, Harpenden, Hertfordshire, AL5 2JQ
R. P. White
Affiliation:
Rothamsted Experimental Station, Harpenden, Hertfordshire, AL5 2JQ

Summary

The effect of insect pollination on plant development and seed yield of winter oil-seed rape, cultivar Jet Neuf, was investigated by comparing plots caged with a honeybee colony, plots caged to exclude insects and plots uncaged and 'open-pollinated' by naturally occurring insects. Plants in the bee-pollinated plots finished flowering earlier, showed more advanced pod growth, and were shorter than those in the plots without bees. Pods from the plots with honeybees contained more seed post-flowering than those from plots without honeybees but the proportion of them that grew into mature seeds for harvest was determined by water availability during seed growth.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1987

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