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Confectionary sunflower genotypes, EC 625693, EC 318761 and SCG 62 were treated with sodium azide at 100 ppm, 200 ppm and 300 ppm, respectively. In M 2 generation, observations were recorded on eight quantitative characters viz., days to 50% flowering, days to maturity, plant height, head diameter, seed filling percentage, hull content, 100 grain weight and seed yield per plant. The treatment 100 ppm had high mean value for yield and yield contributing characters like head diameter, seed filling percentage, 100 grain weight and seed yield per plant. However, the SCG 62 mutant populations showed negative response for most of the characters. The estimates of GCV, PCV, heritability and genetic advance as percent of mean among treatments were maximum in treatments 300 ppm for head diameter, seed filling percentage and seed yield per plant. Whereas 100 ppm for 100 grain weight and 200 ppm for seed yield per plant also exhibited high estimates of GCV, PCV, heritability and genetic advance as percent of mean in all three mutant populations and selection for these characters enhances genetic improvement.

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