Indian Society of Genetics & Plant Breeding

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COMBINING ABILITY IN SESAME

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Combining ability studies on seed yield, yield components and oil content were
conducted from an 8 x 8 half-diallel cross of sesame over two years. Additive genetic
variance was of greater importance for number of primary branches/plant, number
of secondary branches/plant, number of capsules/plant and seed yield/plant while,
additive and non-additive genetic variances were equally important for days to
flowering, 1000-seed weight and oil content. gca and sca manifested significant
interaction with year for all characters. The relative magnitude of non- additive x
year interaction was greater than additive x year interaction. The variety 8 9 was
best general combiner for seed yield and its major components. 814 x 8 9 emerged
best specific combiner for seed yield and its components. For augmenting seed yield
and oil content simultaneously the cross combination MT 67-52 x TC 25 was found
promising.
 

Keywords: Sesame, combining ability, gene effects, genotype x year interaction.

Info

Year: 1999
Volume: 59
Issue: 1
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906

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