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It is noteworthy that all
the crosses showing high sea effect for grain yield in F1 and F2
generations were combinations of Indian x exotic types (Indigenous x
extraneous germplasm). This emphasises the need for combining two
diverse germplasma to create maximum genetic variability which is the
prime requirement and this would alone help in raising the limits of
envisaged progress through selection in any successful breeding
programme. The best cross combinations for grain yield further showed
very interesting results of depicting the genetic diversity of
parents and there were clear cut divergences between these crosses
with regards to sea for component traits.
The present study revealed the existence of both additive and
non-additive type of gene effects for yield component traits.
Therefore, biparental mating and/or diallel selective mating which
may allow intermating of the selects in the different cycles could
hold promise for genetic improvement of the traits of bread
wheat.
Acknowledgment
The authors are thankful to the Director of Research, Rajasthan
Agricultural University, for providing necessary facilities during
the course of investigation.
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