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The frequency of natural cross-fertilization in a composite cross of barley grown in Scotland

Published online by Cambridge University Press:  27 March 2009

J. L. Fyfe
Affiliation:
Scottish Plant Breeding Station, Pentlandfield, Roslin, Midlothian

Summary

The frequency of natural crossing in 1972 was estimated, in two subsets of a composite cross grown in F6 in Nairn and in Fife, as 2·61±0·25% and 4·59±0·35% respectively. The estimated inbreeding coefficients of the parental generations were less than would be expected if all types of pollination were equally fertile and gave equally fertile offspring.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1974

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References

Allard, B. W. & Jain, S. K. (1962). Population studies in predominantly self-pollinated species. II. Analysis of quantitative genetic changes in a bulk-hybrid population of barley. Evolution 16, 90101.Google Scholar
Allard, R. W., Kahler, A. L. & Weir, B. S. (1972). The effect of selection on esterase allozymes in a barley population. Genetics 72, 489503.CrossRefGoogle Scholar
Giles, R. J. (1974). Natural crossing in a barley composite population grown in south-east Scotland in 1971. Barley Newsletter, 17, 53.Google Scholar
Jain, S. K. & Allard, R. W. (1960). Population studies in predominantly self-pollinated species. I. Evidence for heterozygote advantage in a closed population of barley. Proceedings of the National Academy of Sciences, Washington 46, 1371–77.CrossRefGoogle Scholar
Jain, S. K. & Marshall, D. R. (1967). Genetic changes in a barley population analyzed in terms of some life cycle components of selection. Genetica 38, 355–74.CrossRefGoogle Scholar