Genetic Variability and Heritability Study in Double Cross F3 Lines of Cotton (G. hirsutum L.)

Author: A.K. Meena*, S.S. Patil and L.K. Verma

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Abstract

In any crop improvement programme, understanding the amount of genetic variability in the population, mechanism of gene action and inheritance of traits is essential for selecting an appropriate breeding methodology. Information on heritability and genetic advance, in addition to genetic variability, evaluate the relative degree to which a trait is transferred to its offspring, allowing the breeder in selecting a suitable breeding approach to meet the objectives. As a result, using genetic variables like genotypic coefficient of variation (GCV), phenotypic coefficient of variation (PCV), heritability (h2), and genetic advance as a percent of mean (GAM). It becomes essential to divide total variability into heritable and non-heritable components. Through the present study, efforts were made to exploit the variability present in segregating generation of cotton. For the study, 80 Double Cross F3 lines from stay green (SG) and high relative growth rate (high RGR) heterotic groups with one

Keywords

Genetic variability, DCF3 generation, GCV, PCV, heritability, GAM.

Conclusion

The present study revealed that DCF3 lines showed significant genetic variability for the quantitative traits and which aids in the selection and identification of useful transgressive segregants.

References

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How to cite this article

A.K. Meena, S.S. Patil and L.K. Verma (2022). Genetic Variability and Heritability Study in Double Cross F3 Lines of Cotton (G. hirsutum L.). Biological Forum – An International Journal, 14(1): 656-660.