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
Abstract
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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