MORPHOLOGICAL AND MOLECULAR CHARACTERIZATION OF GREEN CHILLI (Capsicum annuum L.) GENOTYPES

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Date
2017-06
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UNIVERSITY OF HORTICULTURAL SCIENCES, BAGALKOT
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The investigation was undertaken at Horticultural Research and Extension station, Vijayapur (Tidagundi), University of Horticultural Sciences, Bagalkot during kharif season 2016-17. The experiment was conducted to evaluate Chilli genotypes for genetic variability, association of characters and their direct and indirect effect on yield components. The analysis of variance exhibited significant differences among all the genotypes for all the traits studied. Moderate GCV and PCV were observed for most of the characters. The parameter, number of fruits per plant had high GCV and PCV. High heritability coupled with high GAM recorded for all the characters except primary and secondary branches. Thus, there is an ample scope for improvement through selection. The genetic correlation studies revealed significant and positive correlation of plant height (90 and 120 DAT), secondary branches at 90 DAT, fruit weight, stalk length and fruits per plant with yield. The path coefficient analysis had direct positive effect on yield through number of fruits per plant, fruit weight and secondary branches at 90 DAT. Molecular characterization of 15 green Chilli genotypes with 17 polymorphic SSR markers was taken up. The polymorphic information content (PIC value) varied from 0.31 to 0.78 and Jaccard’s phylogenetic cluster analysis divided the genotypes into three main clusters. The cluster I and II contained genotypes nine and five respectively, and cluster III was solitary containing genotype DC-1613. Hence, this genotype could be employed as parents for hybridization programme.
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