Assessment of Genetic variability, Heritability and Genetic Advance for Quantitative Traits in Pea (Pisum sativum) Germplasm

Author: Khursheed Alam, Manoj Kumar Singh, Atar Singh, Mukesh Kumar, Satya Prakash, Vipin Kumar, Muzeev Ahmad and Mohd Wamiq

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Abstract

Pea is the most widely cultivated pulse crop in the state of Uttar Pradesh. The main aspect of increasing productivity is the selection of genotypes with higher yields and better quality. Crop improvement needs research and greater understanding of the diversity present in a population base of the crop so that plant breeders can take advantage of it. Fifty-four entries consisting of 10 lines and 4 testers were Line × Tester mating design. 40 F1s used and evaluated in a randomized block design with three replications at the Horticulture Research Centre, Department of Vegetable Science, Sardar Vallabhbhai Patel University of Agriculture and Technology, Meerut during the rabi season of 2022-23. The analysis of variance showed significant differences among the genotypes for all the characters. For all twelve characters under investigated, the mean sum of squares contributes to treatment was found significant, indicating that the materials showed significant variability. The moderate value of phenotypic and genotypic coefficient of variances was recorded for branches per plant, plant height, pod yield per plant, days to first flowering and days to 50% flowering indicating that these traits is controlled by a combination of both additive and non-additive gene actions. The high heritability (broad sense) was revealed for all the characters except pod wight. The high genetic advance as % of mean was recorded for branches per plant, plant height, pod yield per plant and days to first flowering. Whereas, moderate for days to 50 % flowering, green pods per plant, number of seeds per pod, pod diameter, TSS Brix %, days to first green pod picking and pod length. The high heritability coupled with high genetic advance were governed by additive gene action and can be reliable targets for selection in breeding programs to develop improved pea varieties.

Keywords

Genetic variability, heritability, genetic advance, pea

Conclusion

The present study indicates a substantial degree of variability, heritability and genetic advance for these traits, suggesting that simple selection approaches could be effective in enhancing yield through these specific attributes.

References

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How to cite this article

Khursheed Alam, Manoj Kumar Singh, Atar Singh, Mukesh Kumar, Satya Prakash, Vipin Kumar, Muzeev Ahmad and Mohd Wamiq (2023). Assessment of Genetic variability, Heritability and Genetic Advance for Quantitative Traits in Pea (Pisum sativum) Germplasm. Biological Forum – An International Journal, 15(7): 384-388.