Genetic evaluation of radish (Raphanus sativus L.) genotypes under low hill conditions of Himachal Pradesh
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Date
2023-10-12
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College of Horticulture and Forestry Dr YSP UHF, Neri, Hamirpur(H.P.)
Abstract
The present investigation entitled “Genetic evaluation of radish (Raphanus sativus L.) genotypes under low hill conditions of Himachal Pradesh” was carried out during rabi season of 2022 at Experimental Farm of Department of Vegetable Science, College of Horticulture and Forestry, Neri, Hamirpur (H.P). Twenty five genotypes including check variety Japanese White were evaluated in Randomized Complete Block Design with three replications to estimate the extent of variability, heritability, genetic advance, correlation and path coefficient analysis for yield and other horticultural traits. Analysis of variance showed significant differences among the genotypes for all the horticultural traits studied. The genotypes LC-58, LC-57 and LC-53 recorded more yield over check variety Japanese White and also performed better for majority of other characters like number of leaves per plant, leaf length, average root weight with leaves, root length and dry matter content in roots, respectively. The estimates of phenotypic and genotypic coefficients of variation were high for ascorbic acid content in roots and root length. High heritability coupled with high genetic advance as per cent mean was observed for plant height, number of leaves per plant, crown diameter, average root weight with leaves, root length, root yield per plot, total soluble solids and ascorbic acid content in roots. The correlation studies at genotypic and phenotypic levels revealed that root yield per plot exhibited significant and positive correlation with average root weight with leaves, plant height, root length, days to marketable maturity, number of leaves per plant, leaf length, dry matter content in roots, total soluble solids, leaf width and crown diameter. The path coefficient analysis indicated that average root weight with leaves observed maximum positive direct effect on root yield per plot followed by leaf length, number of leaves per plant, ascorbic acid content in roots, plant height and total soluble solids. Therefore, selection for these traits would be more effective for improvement of root yield in radish.