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Lodging studies in Lolium perenne grown for seed: 1. Seed yield and seed yield components

Published online by Cambridge University Press:  27 March 2009

P. D. Hebblethwaite ,
A. Burbidge  and
D. Wright
P. D. Hebblethwaite
Affiliation:
University of Nottingham School of Agriculture, Sutton Bonington, Loughborough, Leics.
A. Burbidge
Affiliation:
University of Nottingham School of Agriculture, Sutton Bonington, Loughborough, Leics.
D. Wright
Affiliation:
University of Nottingham School of Agriculture, Sutton Bonington, Loughborough, Leics.
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Summary

The effects of lodging on the seed yield of S. 23 and S. 24 perennial ryegrass were investigated in a series of field experiments from 1973 to 1976. Natural lodging severely reduced seed yield in all years as a result of a decrease in the number of seeds per unit area. Controlled lodging at different stages of crop growth produced more variable results, indicating that lodging may affect both pollination and seed development. Disturbance of the crop during anthesis in order to aid pollination did not improve seed yields, possibly as a result of damage incurred.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 90 , Issue 2 , April 1978 , pp. 261 - 267
Copyright
Copyright © Cambridge University Press 1978

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