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COMBINING ABILITY AND HETEROSIS FOR YIELD AND ITS COMPONENTS IN INTERSPECIFIC CROSSES OF DESI COTTON

B.A. Sanjay, S. T. Kajjidoni, A. M. Talawar

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Abstract

The line x tester analysis involving eight promising lines collected from different leading centers working on desi cotton in India revealed that DD-8NLF exhibited positive significant gca effects for more number of characters like plant height, number of bolls per plant, boll weight, seed cotton yield per plant, lint index and seed index traits. Amongst males, MDL-2582 showed positive significant effects and proved to be better general combiner for number of bolls per plant, seed cotton yield per plant, ginning out turn and lint index.The cross DD-8NLFxMDL-2582 exhibited significant sca estimates for seed cotton yield per plant and halo length traits. As regards the heterosis DD- 8NLFxMDL-2582 exhibited better heterotic response for number of bolls per plant and seed cotton yield per plant, while other characters showed moderately to low response for heterosis.

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What this paper is about

The line x tester analysis involving eight promising lines collected from different leading centers working on desi cotton in India revealed that DD-8NLF exhibited positive significant gca effects for more number of characters like plant height, number of bolls per plant, boll weight, seed cotton yield per plant, lint index and seed index traits. Amongst males, MDL-2582 showed positive significant effects and proved to be better general combiner for number of bolls per plant, seed cotton yield per plant, ginning out turn and lint index.The cross DD-8NLFxMDL-2582 exhibited significant sca estimates for seed cotton yield per plant and halo length traits. As regards the heterosis DD- 8NLFxMDL-2582 exhibited better heterotic response for number of bolls per plant and seed cotton yield per plant, while other characters showed moderately to low response for heterosis.

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Available abstract

The line x tester analysis involving eight promising lines collected from different leading centers working on desi cotton in India revealed that DD-8NLF exhibited positive significant gca effects for more number of characters like plant height, number of bolls per plant, boll weight, seed cotton yield per plant, lint index and seed index traits. Amongst males, MDL-2582 showed positive significant effects and proved to be better general combiner for number of bolls per plant, seed cotton yield per plant, ginning out turn and lint index.The cross DD-8NLFxMDL-2582 exhibited significant sca estimates for seed cotton yield per plant and halo length traits. As regards the heterosis DD- 8NLFxMDL-2582 exhibited better heterotic response for number of bolls per plant and seed cotton yield per plant, while other characters showed moderately to low response for heterosis.

Key concepts: Lint, Heterosis, Yield (engineering), Biology, Gossypium, Agronomy, Veterinary medicine, Hybrid

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COMBINING ABILITY AND HETEROSIS FOR YIELD AND ITS COMPONENTS IN INTERSPECIFIC CROSSES OF DESI COTTON — Research Paper | ScholarLens