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The assessment of genetic variation from normal, self and backcross families of a triple test cross of pure-breeding lines in wheat

Published online by Cambridge University Press:  27 March 2009

D. S. Virk  and
Parminder S. Virk
D. S. Virk
Affiliation:
Department of Plant Breeding, Punjab Agricultural University, Ludhiana, India
Parminder S. Virk
Affiliation:
Department of Plant Breeding, Punjab Agricultural University, Ludhiana, India
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Summary

Normal, self and backcross families in a triple test cross were used to investigate the inheritance of number of days from sowing to flowering and dry plant weight for a population of pure-breeding lines of bread wheat (Triticum aestivum L.). Several tests of non-allelic interaction, additive genetic and dominance variances were made that involved triple test cross and single tester analyses. Non-allelic interaction was found to be a component of the genetic variation for both traits. The additive and dominance variances were prevalent for both traits. Alternative estimates of additive genetic and dominance variance components did not differ significantly when tested by a weighted least-squares model fitting procedure. The results are discussed in relation to genetic improvement of bread wheat.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 106 , Issue 1 , February 1986 , pp. 1 - 6
Copyright
Copyright © Cambridge University Press 1986

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References

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