Indian Society of Genetics & Plant Breeding

Triallel cross designs for comparing a set of test lines with a control line

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Partial triallel cross (PTC) designs are suitable for
developing crosses between inbred lines to study the
genetic nature of quantitative traits in crops, which in turn
help identify the strategy and methods of selection essential
for breeding. PTCs are useful to compare test lines versus
control line with more precision. In this paper, a method for
constructing a class of PTC designs for comparing a set of
test lines with a control line has been described. The
proposed class of designs are variance balanced for
estimating the contrasts pertaining to general combining
ability effects of half as well as full parents. The suggested
construction method doesn’t demand deep knowledge in
statistics and therefore, the breeders can easily obtain small
and efficient triallel cross plans for test lines vs. control
line comparisons for their breeding trial.

Keywords: Combining ability, variance balance, partial triallel, test vs. control comparisons


Year: 2016
Volume: 76
Issue: 1
Article DOI: 10.5958/0975-6906.2016.00012.2
Print ISSN: 0019-5200
Online ISSN: 0975-6906


Cini Varghese info_circle
Eldho Varghese info_circle
Seema Jaggi info_circle

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