Line x tester analysis of quantitative traits in sesame (Sesamum indicum L.)

Ramesh, S.; Sheriff, R.A.; Rao, A.M.; Reddy, S.S.L.

Mysore Journal of Agricultural Sciences 34(4): 308-310


ISSN/ISBN: 0047-8539
Accession: 003834032

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An investigation was carried out in Hebbal, Bangalore, Karnataka, India, during 1997-98 to elucidate the nature of gene action involved in the inheritance of quantitative traits in sesame using line x tester analysis. The material for the study consisted of 17 lines, viz., C17P1, R84-360-2, C17P3, C30P8, C19P30, E8, C19P1, Improved JE, DORS 106, DS 6, C16P2, DORS 102, DORS 105, Phule Til 1, Tapi, Gowri, DORS 104, and three' testers viz., Rajeshwari, Madhavi and TC 25. The study revealed the predominance of additive genetic variation in the inheritance of days to maturity, total number of capsules per plant, 1000-seed weight, seed yield per plant and oil content. Hence, isolation of superior homozygous lines in advanced segregating generations is suggested to improve these traits. Whereas, days to 50% flowering was predominantly under the control of dominance gene action.