Pharmacognosy

Journal of Pharmacognosy and Phytochemistry

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Journal of Pharmacognosy and Phytochemistry

Vol. 7, Issue 2 (2018)

Estimation of existing genetic variability, heritability and genetic advance in tropical cauliflower (Brassica oleracea var botrytis L.)

Author(s): Amit Kumar, Chandan Roy, Ravi Kumar, Randhir Kumar, Vijay Kumar Singh and Saksham Kumar Sinha
Abstract: Nineteen genotypes of cauliflower were evaluated to study the magnitude of genetic variability, heritability and genetic advance. The genotypes were evaluated for eleven quantitative characters viz., days to 50 per cent curd initiation, days to 50 per cent curd maturity, number of leaves per plant, curd equatorial diameter (cm), curd polar diameter (cm), plant canopy diameter, net curd weight (g), marketable curd weight (g), harvest index, curd compactness and biological weight of plant (g). The present study showed that PCV was higher than GCV for all the traits indicated the presence of environmental effect for traits expression. High magnitude of broad sense heritability was observed for most of the traits except number of leaves, curd equatorial diameter, curd polar diameter and curd compactness. The high genetic advance as per cent of mean showed by plant canopy width, net and marketable curd weight, biological curd weight, curd compactness and harvest index. High heritability coupled with high genetic advance was observed for plant canopy width, net and marketable curd weight, biological curd weight, curd compactness and harvest index which are governed by additive gene and could be effectively improved through selection.
Pages: 2048-2050  |  295 Views  10 Downloads
How to cite this article:
Amit Kumar, Chandan Roy, Ravi Kumar, Randhir Kumar, Vijay Kumar Singh, Saksham Kumar Sinha. Estimation of existing genetic variability, heritability and genetic advance in tropical cauliflower (Brassica oleracea var botrytis L.). J Pharmacogn Phytochem 2018;7(2):2048-2050.
Journal of Pharmacognosy and Phytochemistry