International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2018, Volume : 6, Issue : 1
First page : (1142) Last page : (1147)
Article doi: http://dx.doi.org/10.18782/2320-7051.5978

Estimates of Genetic Variability, Heritability and Genetic Advance For Yield and Yield Component Traits in Indian Cowpea[Vigna unguiculata (L.) Walp.]

Anjali Singh, Shweta* and Vaibhav Singh
Department of Genetics and Plant Breeding,
Chandra Shekhar Azad University of Agriculture & Technology, Kanpur
*Corresponding Author E-mail: shweta1805@gmail.com
Received: 8.11.2017  |  Revised: 22.12.2017   |  Accepted: 28.12.2017  

 ABSTRACT

Genetic variation, heritability and genetic advance studied in cowpea during kharif 2015-16 and 2016-17 at student farm of Chandra Shekhar Azad University of Agriculture& Technology, Kanpur (U.P.). A collection of thirty two cowpea genotypes were evaluated for eleven quantitative characters viz. days to flower initiation, days to maturity, plant height (cm), pod length (cm), number of pod per plant, number of branches per plant, leaf length (cm), leaf width (cm), leaf:stem ratio, Stover of yield per plant (gm.) and seed yield per plant (gm.). All the characters under study showed considerable amount of variability, phenotypic coefficient of variability was higher than genotypic coefficient of variability. A perusal of coefficient of variability indicates that PCV and GCV were quite high for number of pods per plant and seed yield per plant. Moderate PCV and GCV were recorded for Stover yield per plant, leaf: stem ratio, plant height and pod length and lowest observed in  leaf length , number of branches per plant , leaf width, days to maturity and days to flower initiation. A high estimate of heritability was found for plant height and number of pods per plant. High genetic advance was observed for number of pods per plant (81.36) and minimum in leaf length (20.51). Fifty diverse genotypes of vegetable cowpea were evaluated to estimate variability, heritability and genetic advance over mean for pod yield and component characters. Analysis of variance revealed significant differences for almost all the characters studied. High genotypic coefficient of variation was observed for pods per cluster, yield per plant, pod weight, pods per plant and clusters per plant, which indicate that there exists high genetic variability and better scope for improvement of these characters through selection.

Key word: Genetic variation, Heritability, Genetic advance.

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Singh, A., Shweta and Singh, V., Estimates of Genetic Variability, Heritability and Genetic Advance for Yield and Yield Component Traits in Indian Cowpea [Vigna unguiculata (L.) Walp.], Int. J. Pure App. Biosci.6(1): 1142-1147 (2018). doi: http://dx.doi.org/10.18782/2320-7051.5978