“GENETIC DIVERGENCE IN BRINJAL (Solanum melongena L.)”
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Date
2003
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Indira Gandhi Krishi Vishwavidyalaya Raipur
Abstract
The present study was carried out at Horticultural Research Farm, College of Agriculture, IGAU, Raipur (C.G.). The experimental material consisted of 52 brinjal genotypes which was raised during 2002-03 in randomized completely block design with three replications.
High PCV alongwith GCV were observed in average fruit weight, number of fruits per plant, fruit yield per plant, fruit girth and fruit length. High heritability coupled with high genetic advance as per cent of mean were observed in characters viz., average fruit weight, fruit yield per plant, number of fruits per plant and fruit girth.
At phenotypic level, number of fruits per plant and fruit length exhibited high positive association with fruit yield whereas, days to first fruit set and days to first flowering showed high negative association with fruit yield per plant. Characters, number of fruits per plant, fruit length and average fruit weight showed high positive correlation with fruit yield per plant at genotypic level. Number of fruits per plant and average fruit weight exhibited high positive direct effect on fruit yield at phenotypic level whereas, at genotypic level, number of fruits per plant, days to first flowering, fruit length and average fruit weight exhibited high positive direct effect on fruit yield. In addition to this, days to first fruit set showed high negative direct effect on fruit yield at genotypic level.
Genetic divergence analysis revealed that cluster I and IV had high number of genotypes (11 each). Cluster III showed highest intra-cluster distance while, highest inter-cluster distance was observed between cluster VII and VIII. Cluster-III showed high mean values for average fruit weight, days to first flowering, days to first fruit set and fruit yield per plant.
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96 p.