ESTIMATES OF GENETIC VARIABILITY AND HERITABILITY FOR YIELD AND YIELD COMPONENT TRAITS IN BLACKGRAM (Vigna mungo L. Hepper)

PARWEEN NAGMI¹*, GABRIEL M. LAL^2
1Department of Genetics and Plant Breeding, Sam Higginbottom University of Agriculture, Technology and Sciences, Allahabad, 211 007, Uttar Pradesh, India
²Department of Genetics and Plant Breeding, Sam Higginbottom University of Agriculture, Technology and Sciences, Allahabad, 211 007, Uttar Pradesh, India
* Corresponding Author : nagmi0802@gmail.com

Received : 11-07-2017     Accepted : 18-07-2017     Published : 06-08-2017
Volume : 9     Issue : 36       Pages : 4550 - 4552
Int J Agr Sci 9.36 (2017):4550-4552

Keywords : Heritability, Traits, Blackgram
Academic Editor : Namrata Paroha
Conflict of Interest : None declared
Acknowledgements/Funding : Author are thankful to Department of Genetics and Plant Breeding, Sam Higginbottom University of Agriculture, Technology and Sciences, Allahabad, 211 007, Uttar Pradesh
Author Contribution : All author equally contributed

In present study, thirty blackgram (Vigna mungo L. Hepper) genotypes were evaluated for thirteen economically important characters. The study showed considerable variability for these characters. Heritability in broad sense was high for all the characters studied except for primary branches/ plant and days to 50% maturity. High heritability coupled with high genetic advance as per cent mean was perceived for plant height and seed yield/ plant, specified the prevalence of additive gene action in the expression of the traits. While the remaining traits showed high to moderate heritability coupled with moderate to low genetic advance as percent of mean, suggesting prevalence of non-additive gene action in the expression of the traits, therefore may be potentially utilized in recombination breeding. Furthermore, based on them per se performance, the suitable genotypes for these traits could be isolated and utilize for blackgram improvement. The association analysis revealed that the genotypic correlation coefficients were higher than corresponding phenotypic ones for all the character combinations.

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