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The effect of cutting height and mulching on aerial tillering in two contrasting genotypes of perennial ryegrass

Published online by Cambridge University Press:  27 March 2009

R. G. Simons ,
Alison Davies  and
A. Troughton
R. G. Simons
Affiliation:
Welsh Plant Breeding Station, Aberystwyth
Alison Davies
Affiliation:
Welsh Plant Breeding Station, Aberystwyth
A. Troughton
Affiliation:
Welsh Plant Breeding Station, Aberystwyth
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Summary

In simulated swards of perennial ryegrass the production of aerial tillers, in which the growing point has been raised some distance above ground level by internode extension, depended upon the genotype and management. In both genotypes studied decreasing the height of defoliation from 10 to 2·5 cm nearly halved the incidence of aerial tillering, while the presence of a mulch of chopped straw at the base of the sward more than doubled the occurrence of these tillers. The effects of management are also discussed in relation to herbage production. The differences between the genotypes in the degree of aerial tillering suggests that selection for reduced aerial tillering may be of benefit.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 83 , Issue 2 , October 1974 , pp. 267 - 275
Copyright
Copyright © Cambridge University Press 1974

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References

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