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A seedling test for cold hardiness in Lolium perenne L.

Published online by Cambridge University Press:  27 March 2009

M. P. Fuller  and
C. F. Eagles
M. P. Fuller
Affiliation:
Welsh Plant Breeding Station, Aberystwyth
C. F. Eagles
Affiliation:
Welsh Plant Breeding Station, Aberystwyth
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Summary

A seedling test for measuring cold hardiness in Lolium perenne cultivars is described. Seedling performances of the cultivars in this test were closely related to those of mature plants in an artificial freezing test and to reported survival under field conditions in U.K. winters.

With two-leaf seedlings it was possible to analyse hardiness into leaf damage, regrowth and plant kill enabling an index of hardiness to be compounded. Using this index in conjunction with lethal dose 50% estimates, meaningful separation of cultivars was possible.

The possible application of this technique for screening breeding material and for detailed physiological work is discussed.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 91 , Issue 1 , August 1978 , pp. 217 - 222
Copyright
Copyright © Cambridge University Press 1978

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