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Dry-matter distribution and seasonal yield changes in five contrasting genotypes of white clover

Published online by Cambridge University Press:  27 March 2009

R. Haycock
Affiliation:
Department of Agricultural Biology, The University, Newcastle upon Tyne, NEl 7RU

Summary

A field trial of five contrasting types of white clover grown in monoculture was established in August 1978. Measurements commenced in October and continued for 12 months during which time no additional treatments were applied.

Seasonal trends of dry-matter accumulation and distribution were recorded and particular reference was made to the components of harvestable yields, which showed a strong seasonal trend. During the summer the density of growing points decreased in all types except D while the number of leaves per growing point and mean dry weight per leaf increased. The principal component of yield, mean dry weight per leaf, increased later than number of leaves per growing point. Stolons did not show the same cyclical pattern and produced an overall increase during the experiment. The five genotypes also showed large variation in the distribution of dry matter between leaves, flowers, stolons and roots.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1984

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