PJB-2017-827
DIRECT AND INDIRECT SELECTION INDICES FOR GENETIC IMPROOVEMENT IN CHICKPEA
MUHAMMAD TARIQ MAHMOOD
Abstract
This study was conducted to investigate direct and indirect effects and selection indices in fifteen genotypes of chickpea (Cicer arietinum L.) The experiment was carried out at Gram Breeding Research Station, Kallurkot, Pakistan, during Rabi season of 2016-17. Basic analysis of variance revealed that all the genotypes were significant (p≥0.01) different for all the traits. The path coefficient analysis showed that harvest index had the greatest direct effect on grain yield (0.527) 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 grain 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 showed that harvest index, number of pods plant-1 and 100 seed weight with positive and significant correlation coupled with high direct positive effect to grain yield. Therefore, these traits may be focused while attempting chickpea improvement program.
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