PJB-2007-274
HETEROSIS AND HERITABILITY STUDIES FOR SUPERIOR SEGREGANTS SELECTION IN CHICKPEA
AHMED BAKHSH*, SHAHID RIAZ MALIK**, UMER IQBAL**, AND WAHEED ARSHAD*
Abstract
Nine F1 hybrids of chickpea and their parents were evaluated in randomized complete block design to estimate heterosis and heritability of grain yield and yield components. Significant differences among genotypes were found in grain yield and seven yield components. The magnitude of heterosis varied significantly between hybrids. Heterosis over mid parent in primary and secondary branches ranged from 12.31% to 56.82% and from 11.19% to 93.03%, respectively. Heterotic effects for 100 seed weight, grain yield per plant and biological yield per plant respectively varied from 18.78% to 32.96%, 4.05% to128.49% and 9.25% to 116.82%. Balkasar x C-235 exhibited maximum heterosis and heterobeltiosis for primary branches, secondary branches, grain yield plant-1 and biological yield plant-1, whereas, Punjab-1xILC482 expressed maximum heterosis (103.97%) and heterobeltiosis (75.80%) for number of pods plant-1. Broad sense heritability for different traits ranged from 45.23% to 85.76%. Maximum heritability was recorded for number of seed per pod and 100 seed weight. High heterosis with moderate heritability and high genetic advance obtained for number of pods plant-1 provide opportunity for identification of superior segregates from Punjab-1xILC482, C-235xBittal-98 and BalkasarxC-235.
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