Author(s):

GM Malve, MN Bhalekar and SA Anarase

Abstract: Combining ability effects revealed that, the mean of square due to general combining ability and specific combining ability were highly significant for all characters except days to 50% flowering and days required for first harvest. The estimates for general combining ability effects revealed that none of the parents showed good general combiners for all characters. The parents RHR RG-2, RHR RG-6 and RHR RG-8 were the good general combiners as they displayed significant GCA effects in desirable direction for most of the characters like earliness and yield attributing characters. Estimates on specific combining ability effects indicated that, the cross combinations 1 x 8 (RHR RG-1 x RHR RG-8), 2 x 7 (RHR RG-2 x RHR RG-7), 2 x 8 (RHR RG-2 x RHR RG-8), 5 x 8 (RHR RG-5 x RHR RG-8), 6 x 7 (RHR RG-6 x RHR RG-7) and 6 x 8 (RHR RG-6 x RHR RG-8) displayed significant and positive specific combining ability for weight of fruits per vine and number of fruits per vine and also showed significant negative SCA effects for desirable traits.

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