EXPLORATION OF GENETIC VARIABILITY IN CHILLI (Capsicum annuum L.) PRESENT IN SUBTROPICAL REGION OF HIMACHAL PRADESH
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Date
2019-11-11
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COLLEGE OF HORTICULTURE AND FORESTRY, DR Y S P UHF, NERI, HAMIRPUR
Abstract
The present investigation entitled “Exploration of genetic variability in chilli (Capsicum annuum L.) present in subtropical region of Himachal Pradesh” was carried out at Vegetable Research Farm, Department of Vegetable Science, College of Horticulture and Forestry, Neri, Hamirpur (HP) during Kharif season, 2018. Twenty genotypes including check variety Surajmukhi were evaluated in Randomized Complete Block Design with three replications to ascertain extent of variability, heratibility, genetic advance and gain, correlation and path coefficient analysis for yield and other horticulture traits along with the estimation of genetic divergence among the genotypes. Analysis of variance showed significant differences among all the genotypes for all the characters under study. Three genotypes namely LC-C-22, LC-C-17 and LC-C-8 were found to be high yielding as well as better from consumer’s point of view. They could be the promising parents for utilization in further breeding programmes. High PCV and GCV existed for marketable fruit yield per plant, Fruit length, average fruit weight, Number of marketable fruits per plant, and Number of primary branches per plant, Stem length to forking and Fruit diameter. High heritability estimates were observed for all the traits among all genotypes while high estimates of genetic gain were observed for. high for Marketable fruit yield per plant, fruit length, number of marketable fruits per plant, average fruit weight, number of primary branches per plant, stem length to forking, fruit diameter, plant height, plant spread, pedicel length, weight of 100 seeds and number of seeds per fruit. The correlation studies at phenotypic and genotypic level revealed that marketable fruit yield per plant had positive and significant association with average fruit weight, fruit length, number of marketable fruits per plant, number of primary branches and pedicel length. Path analysis revealed that average fruit weight, fruit diameter, number of marketable fruits per plant and number of primary branches had positive and direct effects on marketable fruit yield per plant. Genetic divergence studies revealed that the intra-cluster distance varied from cluster I to cluster III whereas, the inter cluster distance was maximum to the tune of between cluster II and III and therefore hybridization between genotypes of cluster II and III will be more rewarding for getting superior progenies.
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