Study on Gene Action and Combining Ability for Yield and its Component Traits in Rice for Rainfed Upland Condition in Himachal Pradesh
Keywords:
Gene Action, General Combining Ability and Specific Combining Ability.Abstract
The objective of this research was to determine the gene action and combining ability of 10 lines and 3 testers for rainfed upland condition, 30 cross combinations developed using a line x tester mating design in the Kharif 2021 and 2022 growing seasons. The crossing was completed in Kharif 2021, and in Kharif 2022,the developed material was grown and tested along with its parents using a randomized block design. The observed data were recorded for 14 yield and yield-related quality traits were analyzed statistically, and it was shown that for all the traits examined, the dominant variance was greater than the additive variance for majority of the traits. The lines showing significant GCA effects were HPR2884, HPR2871, HPR2873 and HPR2889, while the crosses HPR2866 x HPR2656, HPR2866 x HPR1156 and HPR2840 x HPR1156 showed high SCA for various traits.Downloads
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