PJB-2018-31
Direct and Indirect Selection Indices for Genetic Improvement in Chickpea
MUHAMMAD TARIQ MAHMOOD
Abstract
The present study was carried out to probe the direct and indirect selection indices in fifteen chickpea (Cicer arietinum L.) genotypes. The experiment was conducted at Gram Breeding Research Station, Kallurkot, Pakistan, during Rabi season of 2016-17. Basic analysis of variance revealed that all the genotypes were significantly different (p≥0.01) for all the traits. The path coefficient analysis showed that the harvest index had greatest direct effect on yield (0.527) which was followed by number of pods plant-1 (0.498) and 100 seed weight (0.452). Correlation coefficient studies showed highly significant correlation between harvest index and yield (0.941) followed by number of pods plant-1 (0.924) and 100 seed weight (0.502) signifying the importance of these traits for crop improvement. Correlation and path coefficient analysis studies showed that harvest index, number of pods plant-1 and 100 seed weight have positive and significant correlation 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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