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1992•Tropical AgricultureOpen access

Heterosis in sesame (Sesamum indicum L.)

Susmita Datta Ray, Shreya Sen

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Abstract

In a full diallel of six self-pollinated sesame varieties, B-67, B-14, ST-7, RT-1, MT-67-52 and R-9 heterosis over better and mid-parents were pronounced for plant height, number of days to flowering, 1000-seed weight and seed yield. Heterosis was also significant and positive for number of capsules plant −1 and number of capsules main stem −1 in few crosses. Wide ranges of variation in heterosis estimates of some reciprocal hybrids revealed that choice of pollen and seed parent is important for exploring hybrid vigour

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In a full diallel of six self-pollinated sesame varieties, B-67, B-14, ST-7, RT-1, MT-67-52 and R-9 heterosis over better and mid-parents were pronounced for plant height, number of days to flowering, 1000-seed weight and seed yield. Heterosis was also significant and positive for number of capsules plant −1 and number of capsules main stem −1 in few crosses. Wide ranges of variation in heterosis estimates of some reciprocal hybrids revealed that choice of pollen and seed parent is important for exploring hybrid vigour

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Available abstract

In a full diallel of six self-pollinated sesame varieties, B-67, B-14, ST-7, RT-1, MT-67-52 and R-9 heterosis over better and mid-parents were pronounced for plant height, number of days to flowering, 1000-seed weight and seed yield. Heterosis was also significant and positive for number of capsules plant −1 and number of capsules main stem −1 in few crosses. Wide ranges of variation in heterosis estimates of some reciprocal hybrids revealed that choice of pollen and seed parent is important for exploring hybrid vigour

Key concepts: Sesamum, Heterosis, Diallel cross, Hybrid, Biology, Pollen, Hybrid seed, Horticulture

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