Genetic variability, Heritability and Genetic Advance for Seed Yield and its components in Indian Mustard [Brassca juncea (L.) Czern & Coss.]

Author: Swapnil Dwivedi, Mahak Singh, R.K. Yadav, Pawan Kumar Saini and Harshit Tripathi

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Abstract

India contributes greatly to rapeseed–mustard production globally and is the largest grower of rapeseed-mustard, occupying the first position in the area and second position in production after China. Rapeseed-mustard are important crops that help meet the demand for domestic oil seeds. Given India's high population, there is a pressing need to increase the production of oil seed in the country. Therefore, the current study aims to analyze different genetic parameters in mustard to plant strategies for the development of high-yielding varieties of Indian mustard. Given this, an experiment was planned and sowing of the experimental material was done at the Oilseed Research Farm of the Chandra Shekhar Azad University of Agriculture & Technology (CSAUA&T), Kanpur. The experimental material comprising 100 treatments (10 parents + 45 F1's + 45 F2's) were grown in Randomized Block Design in three replications during rabi season (2021-22) following standard agronomic practices. The observations on seventeen quantitative characters were recorded. Significant differences were observed among the treatments (parents, F1's and F2's) for all the 17 characters under study in the combined analysis of variance (ANOVA). High heritability along with high genetic advance was recorded for main axis height (cm), total siliqua per plant, biological yield per plant, and seed yield per plant in F1 and F2 generations. Main axis height (cm), number of secondary branches per plant, total siliqua per plant, siliqua length(cm), biological yield per plant (g), and seed yield per plant showed high to moderate PVC and GCV. This showed the preponderance of additive gene action in the inheritance of test weight hence, selection based on test weight i.e., seed size would be rewarding.

Keywords

Indian mustard, Brassica juncea, heritability, variability, genetic advance, GCV and PCV

Conclusion

High heritability and high genetic advance for main axis height, total siliqua per plant, biological yield per plant, and seed yield per plant in F1 and F2generations. It was mainly due to additive gene effects and selection would be effective for these traits. Main axis height, number of secondary branches per plant, siliqua per plant, siliqua length, biological yield per plant, and seed yield per plant also showed high to moderate GCV along with PCV indicating the additive gene action so the selection of genotypes would be rewarding for the aforesaid traits.

References

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How to cite this article

Swapnil Dwivedi, Mahak Singh, R.K. Yadav, Pawan Kumar Saini and Harshit Tripathi (2023). Genetic variability, Heritability and Genetic Advance for Seed Yield and its components in Indian Mustard [Brassca juncea (L.) Czern & Coss.]. Biological Forum – An International Journal, 15(9): 768-772.