PJB-2001-49
IDENTIFICATION OF GENETICALLY SUPERIOR HYBRIDS IN CHICKPEA (CICER ARlETINUM L.)
AFSARI SHARIF, A. BAKHSH*, MUHAMMAD ARSHAD*, A. M. HAQQAN AND SARA NAJMA
Abstract
The direct utilization of heterosis in legumes is limited due to cleistogamous nature of their flower. However, information on genetic parameters such as heterosis, heritability and genetic Ann. advance may be used for the identification of superior hybrids. Such hybrids have high probability of developing better pure lines. In the present investigation F1 hybrids between 14 chickpea, 93: varieties were studied for heterosis and heritability estimates in various traits. The results showed that there were significant differences between genotypes for all the characters studied. The high heterotic effects were recorded for secondary branches, biological yield, number of pods/plant, grain yield and plant height. The hybrid of C727 and CM72 exhibited maximum heterosis for branches per plant, biological yield and pods/plant. Another hybrid, "ICC13416 X C727'. Showed k p maximum heterotic effect for grain yield. Heritability estimates for different characters revealed, that the hybrid. (F87508C X F85-114C) had high heritability for plant height, biological yield, and pods/plant, grain yield and 100 seed weight. Another hybrid (F87-508 X F85-114C) had high heritability for plant height and grain yield whereas F84-508C X ICC13301 showed high heritability for 100 seed weight. Simultaneous study of heterosis and heritability revealed that there an was no systematic relationship between these two parameters. High heterotic effects coupled with high heritability were observed in ICCI3728 X CAI18608 for number of secondary branches biological yield, pods/plant and grain yield/plant. The heterotic effects exhibited by this hybrid appeared to be genetically based as dominant proportion of its variability was heritable. Therefore, this hybrid could be used effectively for the simultaneous improvement of more than one character through selection of single plants with combination of various traits.
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