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Genetic Variability in Root Development in Relation to Drought Tolerance in Spring Wheats

Published online by Cambridge University Press:  03 October 2008

N. F. Derera ,
D. R. Marshall  and
L. N. Balaam
N. F. Derera
Affiliation:
University of Sydney North West Wheat Research Institute, P.O. Box 219, Narrabri, 2390, N.S.W., Australia
D. R. Marshall
Affiliation:
University of Sydney North West Wheat Research Institute, P.O. Box 219, Narrabri, 2390, N.S.W., Australia
L. N. Balaam
Affiliation:
University of Sydney North West Wheat Research Institute, P.O. Box 219, Narrabri, 2390, N.S.W., Australia
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Summary

Fifteen Australian and exotic wheat varieties revealed genotypic differences in their patterns of root development and drought tolerance. Earliness in plant maturity, which accounted for 40 to go per cent of the observed variation in drought tolerance, appeared to be by far the most important characteristic of tolerant genotypes, but there nevertheless appeared to be a measurable relationship between some parameters of root development, water use efficiency and drought tolerance. The impact of study of this kind on the problem of breeding for drought tolerance is briefly discussed.

Type
Research Article
Information
Experimental Agriculture , Volume 5 , Issue 4 , October 1969 , pp. 327 - 338
Copyright
Copyright © Cambridge University Press 1969

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References

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