Variability and Correlation Studies in Sweet Pepper (Capsicum annuum var. grossum L.)”
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Date
2004
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SKUAST Kashmir
Abstract
The present investigation on “Variability and Correlation Studies in Sweet Pepper (Capsicum annuum var. grossum L.)” was carried out at Vegetable Experimental Farm, SKUAST-K, Shalimar during kharif 2003. Twenty-one diverse genotypes of sweet pepper were evaluated in Randomised Block Design with three replications. Observations were recorded on 14 growth, yield and quality attributes. Analysis of variance revealed high significant differences among the genotypes for all the traits under study. Mean data revealed that the genotypes viz. SP-82, SP-5, C.W., SP-634 and Nishat-1 were superior for most of the traits. Both genotypic and phenotypic coefficients of variation were moderate to high for all the traits except number of days to first fruit set. Heritability in broad sense was high for all characters. Genetic advance was found high for fruit yield plant-1, number of seeds fruit-1, chlorophyll content of fruit and vitamin C content, while it was moderate for weight fruit-1, plant height, plant spread and seed yield plant-1. Rest of the traits recorded low genetic advance. The value of genetic gain was moderate to high for all the traits. High heritability alongwith high genetic gain was observed for most of the characters under study, indicating the role of additive gene in the inheritance of these traits. Hence these traits may be improved through selection procedure. In general the magnitude of genotypic correlation coefficients was higher than corresponding phenotypic correlation coefficients. Fruit yield plant-1 exhibited positive and significant correlation with number of branches plant-1, fruit diameter, flesh thickness, weight fruit-1 and number of seeds fruit-1 at both genotypic and phenotypic levels while negative but significant correlation was observed with number of days to first fruit set. Negative but non-significant correlation of fruit yield plant-1 was observed with number of fruits plant-1, chlorophyll content and vitamin C content. Correlation of fruit yield plant-1 with rest of traits was found positive and non-significant. Significant positive as well as negative correlation also existed among different characters. Path coefficient at genotypic level revealed that number of fruits plant-1 had highest positive direct effect on fruit yield followed by number of branches plant-1, weight fruit-1, fruit diameter, seed yield plant-1, number of days to first fruit set and fruit length. As the characters like weight fruit-1, number of branches plant-1 and fruit diameter had significant positive correlation with fruit yield and also showed positive direct effect, therefore, these characters should be taken into consideration while selecting for higher yield in sweet pepper.
Description
M.Sc Thesis submitted to SKUAST Kashmir
Keywords
Capsicum annuum, Correlation, Genetic gain, Heritability, Path coefficient and Variability, Olericulture/Vegetable Science