Author(s):

Aarti Sharma, Satyendra Kumar and MP Chauhan

Abstract: Simple and joint scaling tests done on four crosses following generation mean analysis unveiled presence of epistatic interaction hence hints fitness of digenetic interaction model for all the eleven characters in the four crosses. Duplicate type of epistasis was detected for number of secondary branches per plant, number of capsules per plant, number of seeds per capsule, biological yield per plant, harvest index and 1000-seed weight in cross I; days to 50% flowering, days to maturity, number of capsules per plant, biological yield per plant, harvest index, 1000-seed weight and seed yield per plant in cross II; number of primary branches per plant, number of secondary branches per plant, number of capsules per plant, number of seeds per capsule, biological yield, harvest index, 1000-seed weight and seed yield per plant in cross III; days to maturity, plant height, number of secondary branches per plant, number of seeds per capsule, biological yield per plant and 1000-seed weight in cross IV. While complementary type of epistasis was observed for plant height and number of primary branches per plant in cross I; plant height, number of secondary branches per plant and number of seeds per capsule in cross II; days to maturity and plant height in cross III.

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