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Science, Technology and Development Vol. 37 (2), 2018
Research Article
Direct and Indirect Selection Indices for Genetic Improvement in Chickpea
Muhammad Tariq Mahmood, Mushtaq Ahmad, Imtiaz Ali, Muhammad Saleem and Marghub Amer
Abstract: The present investigation was conducted to probe the direct and indirect selection indices in fifteen genotypes of chickpea (Cicerarietinum L.). Field experiment was carried out at Gram Breeding Research Station, Kallurkot, Pakistan, in Rabi season of 2016-17. Path coefficient analysis revealed that harvest index exhibited the highest direct effect on grain yield (0.527), followed by pods plant–1 (0.498) and 100 seed weight (0.452). Correlation coefficient studies showed highly significant correlation between harvest index and grain yield (0.941) followed by pods plant–1 (0.924) and 100 seed weight (0.502) signifying the importance of these traits for crop improvement. From both, the correlation and path coefficient analysis studies, it is evident that harvest index, pods plant–1 and 100 seed weight have positive and significant association to grain yield coupled with high direct positive effect. Therefore, these traits may be focused while attempting chickpea genetic improvement program.
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