Author: Antiya P.M., Naghera Y.V., Vavdiya P.A. and Mungra K.S.
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Thirty genotypes of fennel were tested to access the extent of genetic variability, heritability and genetic advance. The analysis of variance revealed significant mean sum of square values for all the thirteen traits studied suggesting a sufficient amount of variability present among them. The values of phenotypic coefficient of variation (PCV) were observed slightly higher than genotypic coefficient of variation (GCV) for all thirteen characters indicating minor influence of environmental factors. In addition to this, high heritability coupled with high genetic advance as % mean was exhibited by days to 50 % lowering, plant height, tillers plant, secondary branches plant-, umbels per plant, umbellates per umbel, seed width, seed yield plant and test weight showed the role of additive gene action in these traits and therefore improvement by direct phenotypic selection over the genotypes would be worth it
Fennel, genetic variability, heritability, genetic advance
In present study, large phenotypic differences were observed for all the thirteen characters under study. The wide range of variation obtained may be due to inclusion of divergent genotypes in the present study. Highly significant mean sum of squares due to genotypes for all thirteen characters indicated the presence of sufficient genetic variability in the materials under study. The higher and closer values of phenotypic coefficient of variation (PCV) than the respective genotypic coefficient of variation (GCV) for all the thirteen traits indicated the inherent connection between genotypic and phenotypic expression of these traits. Results indicated that these parameters are very important for selecting a suitable genotype because if the heritability of a character is high, selection for such traits would be quite effective. This is because there would be a close correspondence between genotypic and phenotypic variation due to a relatively smaller contribution of the environment to the phenotype. The genotype FNL 30 performed better for seed yield per plant along with plant height, primary branches per plant, umbels per plant, umbellates per umbel and test weight. Therefore, this genotype should be widely utilized in further fennel improvement programme
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Indexing