Indian Society of Genetics & Plant Breeding

Gene effects for grain yield and related traits in sorghum [Sorghum bicolor (L.) Moench]

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Generation mean analysis was carried out to estimate the
nature and magnitude of gene effects in sorghum
(L.) Moench]. Inadequacy of simple
additive-dominance model reflected the presence of
epistatic interaction. Ail the four traits In majority of
crosses were under the influence of dominance gene
effects. Higher magnitude of dominance and dominance
x dominance gene interactions could not be exploited in
the crosses with duplicate epistasis as it minimizes the
expression of heterosis. Reciprocal recurrent selection
and/or biparental mating in early segregating generations
can prove to be an effective approach for development
of high yielding sorghum varieties

Keywords: Sorghum, gene effects, grain yield, scaling test, reciprocal recurrent selection


Year: 2007
Volume: 67
Issue: 1
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906



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