Mutagenic Effectiveness and Efficiency of Gamma Rays in Sesame (Sesamum indicum L.
Mutagenic effectiveness and efficiency of gamma rays were studied in the genotypes of sesame TTVS 51 and TTVS 19. The dosage of gamma rays for mutagenic treatments was fixed based on the LD values 50 available in the literature in relation to sesame and allied oilseed crops. The mutagenic effectiveness and efficiency is high at 250Gy in both genotypes. The frequency of viable mutants was high in 450Gy on M2 seedling basis. Mutants with wider spectrum of variation were found at 250Gy and 350Gy of gamma rays. Mutagenic effectiveness and efficiency increased with the decreased in dose or concentration in sesame. Compared to TTVS 19, TTVS 51 produced more economically viable mutations.