Vol. 8, Issue 5 (2020)
Studies on genetic variability, heritability and genetic advance in cucumber (Cucumis sativus L.)
Author(s): Deepesh Keshari, Bijendra Singh, Rajat Singh, Manoj K Singh, LK Gangwar, Vaishali and Khursheed Alam
Abstract: An experiment was conducted to study genetic variability, heritability, and genetic advance in cucumber (Cucumis sativus L.). Twenty genotypes were used in this experiment. These genotypes were planted in Randomized Block Design with three replications during the summer season- 2018-19 at Horticulture Research Centre, Sardar Vallabhbhai Patel University of Agriculture & Technology, Meerut (U.P.). Genetic Variability, heritability, genetic advance and genetic gain for different characters were studied in 20 genotypes of cucumber.The phenotypic coefficient of variations (PCV) was higher than the genotypic coefficients of variations (GCV) for all traits studied. The maximum phenotypic and genotypic coefficient (PCV and GCV) was observed for vine length (12.55 & 11.41cm), number of primary branches (30.87 & 29.18), days to 50% flowering (11.33 & 10.13), days to first fruit harvest (11.78 & 10.53), number of fruits per plant (23.45 & 22.80), fruit length (22.48 & 21.32cm), fruit diameter (12.85 & 11.70cm), average fruit weight (29.82 & 28.65), fruit yield (16.95 & 15.84).Heritability estimates varied from 89.34 percent for the number of primary branches to 99.99 percent for average fruit weight. The genetic advancement as a percent of the mean (>30%) was found to be highest for average fruit weight, number of primary branches, number of fruits per plant, fruit length and fruit yield. whereas moderate genetic advance (<30 to >20%) was observed for fruit diameter, vine length, days to first fruit harvest, and days to 50% flowering.
DOI: 10.22271/chemi.2020.v8.i5i.10374
Pages: 641-643 | 973 Views 230 Downloads
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How to cite this article:
Deepesh Keshari, Bijendra Singh, Rajat Singh, Manoj K Singh, LK Gangwar, Vaishali, Khursheed Alam. Studies on genetic variability, heritability and genetic advance in cucumber (Cucumis sativus L.). Int J Chem Stud 2020;8(5):641-643. DOI: 10.22271/chemi.2020.v8.i5i.10374
