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20191
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Subject: Genetics and Plant Breeding × Author: Kaur, Jeevanjot × End date: 2019 × Start date: 2019 ×
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    ThesisItemOpen Access
    GENETIC ANALYSIS FOR SEED YIELD AND RELATED TRAITS IN CHICKPEA (CICER ARIETINUM L.) UNDER ORGANIC AND CHEMICAL INPUT CONDITIONS
    (CSKHPKV, Palampur, 2019-06) Kaur, Jeevanjot; Bhardwaj, Neelam
    The present investigation entitled “Genetic analysis for seed yield and related traits in chickpea (Cicer arietinum L.) under organic and chemical input conditions” was undertaken during rabi 2017 to assess the nature and magnitude of genetic variability and associations among various traits including their direct and indirect effects on seed yield and to identify potential genotypes under organic and chemical input conditions. Analysis of variance revealed significant genetic differences among chickpea genotypes for all the traits under organic and chemical input conditions except pod width and pod length under organic input conditions and nitrogen fixation under both the conditions. In general, mean and range for most of the traits were found to be higher under organic input conditions as compared to chemical input conditions. High PCV, GCV, heritability and genetic advance were observed for nodule number, nodule fresh weight, nodule dry weight and seed yield per plant under both the conditions. Under organic input conditions seed yield per plant was significantly positively correlated with secondary branches, pods per plant, nodule number, nodule fresh weight, nodule dry weight, harvest index and biological yield per plant whereas under chemical input conditions seed yield per plant was significantly positively correlated with primary branches per plant, secondary branches per plant, pods per plant, 100-seed weight, harvest index and biological yield per plant. Under organic input conditions high direct effect was found for secondary branches per plant, harvest index, nodule dry weight, nodule number, seeds per pod, biological yield per plant and pods per plant whereas under chemical input conditions high direct effect was found for secondary branches per plant, pods per plant, 100-seed weight and primary branches per plant implying that these traits can act as selection indices for seed yield. On the basis of mean performance, best genotypes for seed yield common under both the conditions are 18-II, 113-P, P-30-6 and DKG-964.