volume 43 issue 2 (june 2009) : 119·123
COMBINING ABILITY AND NATURE OF GENE ACTION IN SESAMUM (SESAMUM INDICUM L.)
1Department of Plant Breeding and Genetics,
Orissa University of Agric. and Technology, Bhubaneswar-751 003, India.
Published In
Indian Journal of Agricultural Research
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volume 43 issue 2 (june 2009) : 119·123
COMBINING ABILITY AND NATURE OF GENE ACTION IN SESAMUM (SESAMUM INDICUM L.)
1Department of Plant Breeding and Genetics,
Orissa University of Agric. and Technology, Bhubaneswar-751 003, India.
ABSTRACT
Combining ability and nature of gene action involved in the inheritance of seed
yield and its components in sesamum were analyzed in F1 of a half diaMel cross among1-2
elite varieties of diverse origin. Varieties VRI-l and GT-tO were good general combiner
for capsules/plant, Kalika and HT-I, for seeds/capsule, AKT-64 and Pragati, for 1Ooo-seed
weight and Uma, GT-IO, Akt-64 and Kalika were good combiner for seed yield. Gene
action was largely additive for primary branc,hes and predominantly additive for plant
height and lOoo-seed weight. Both additive and non-additive gene action were equally
important for days to maturity and seeds/capsule. Additive gene action played a greater
role in case of capsules/plant, while non-additive gene action played a greater role in
inheritance of seed yield.
yield and its components in sesamum were analyzed in F1 of a half diaMel cross among1-2
elite varieties of diverse origin. Varieties VRI-l and GT-tO were good general combiner
for capsules/plant, Kalika and HT-I, for seeds/capsule, AKT-64 and Pragati, for 1Ooo-seed
weight and Uma, GT-IO, Akt-64 and Kalika were good combiner for seed yield. Gene
action was largely additive for primary branc,hes and predominantly additive for plant
height and lOoo-seed weight. Both additive and non-additive gene action were equally
important for days to maturity and seeds/capsule. Additive gene action played a greater
role in case of capsules/plant, while non-additive gene action played a greater role in
inheritance of seed yield.
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In this Article
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Published In
Indian Journal of Agricultural Research