Genetic divergence Studies in Kale (Brassica oleracea var. acephala)
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Date
2023-11-23
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Sher-e-Kashmir University of Agricultural Sciences and Technology of Jammu, Jammu
Abstract
The present investigation entitled “Genetic Divergence Studies in Kale (Brassica oleracea var. acephala) was conducted during the year 2022-2023 in the Experimental Field of Division of Vegetable Science. The experiment was laid out in Randomized Complete Block Design with 20 genotypes. Data on 22horticultural traits was recorded as per standard procedure. Data on mean performance of genotypes revealed that Khanyari (SKUAST-K)was the highest yielder followed by Saag Kashmiri Munawari andKhanyari also performed better for other importantdesirable traits viz. plant height,number of leaves per plant, number of nodes per plant, number of pickings per plant, duration of picking. The analysis of genotypic and phenotypic coefficient variance revealed highermagnitude of PCV than the corresponding GCV for all characters which indicated effect ofenvironment on the trait expression. Highest PCV and GCV were obtained for number of siliqua per plant. High heritability coupled with high genetic advance wasobserved for number of siliqua per plant showing the influence of additive gene action on thecharacters hence, may be useful for selection. Seed yield per plant with number of pickings per plant showed positive and significant correlation, leaf yield per plant and leaf yield per hectare showed negative and significant correlation with days to first leaf picking. Leaf length, plant height, no. of siliqua per plant and germination percentage showed maximum directeffect on seed yield per plant. Genetic diversity was evaluated using D2analysis. Seven differentconstellations were formed comprising of 17 genotype of Kale as three genotypes did not enter the reproductive phase. Maximum number ofplant progenies were present in Cluster I followed by Cluster II. Maximum inter cluster distance was observed between Cluster II and Cluster IV, whereas maximum intra cluster distance was observed in Cluster II. Cluster III had maximum mean value for charactersviz, plant height, number of leaves per plant, no. of nodes per plant no. of pickings per plant, duration of pickings,leaf yield per plant, leaf yield per hectare and germination percentage. This indicated that plantprogenies from these clusters can be selected for specific economic characters for furtherutilization in hybridization programme.
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Citation
Anayat Ali. 2023. Genetic divergence studies in Kale (Brassica oleracea var. acephala), M.Sc. Thesis, SKUAST –Jammu, India.