• P-ISSN 0974-6846 E-ISSN 0974-5645

Indian Journal of Science and Technology


Indian Journal of Science and Technology

Year: 2009, Volume: 2, Issue: 7, Pages: 51-52

Original Article

Radiation-induced two oil rich mutants in sesame (Sesamum indicum L.)


Radiation (X-ray and gamma rays ) induced two productive oil rich ‘plant type’ mutants of sesame (Sesamum indicum L., var - B-67, family: Pedaliaceae) namely lax branching (angle of divergence 30.50˚ to 32.35˚ of primary branches in relation to main axis; control: 19.60˚ - 22.75˚) and small flower (length: mutant – 2.83 cm ± 0.14, control – 4.0 cm ± 0.01, breadth: mutant 1.53 ± 0.03, control – 1.83cm ± 0.03) were cytogenetically (meiosis more or less alike to control, 2n= 26; mutant traits were monogenic recessive to normal) and qualitatively assessed (seed yield and fatty oil contents were significantly higher in the mutants than parental cultivar but protein contents were lower; yield related traits namely total branches per plant, capsule on main axis and capsule length and plant height enhanced in small flower and lax branching mutants respectively than control) at M4 (rain fed kharif season). Lax branching and control plant types were given in multilocational trial (four districts - North 24 Parganas, Burdwan, Birbhum and Nadia of West Bengal) to assess seed yield and seed oil and protein contents, and the results obtained were discussed.

Keywords : Sesame, macromutants, oil rich, seed yield, protein content, multilocational trial.


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