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Exploiting the Genetic Variability of Quality Traits in Advanced Breeding Lines of Rice (Oryza sativa L.)

Author: Anil Kumar Gangireddy, Sreevalli Devi Muga, Sreelakshmi Chintala, Madhusudhan Puchakayala, Lavanya Kumari Padherla and Lakshmi Narayana Reddy Vemireddy

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Abstract

In this study genetic variability parameters were studied in 70 rice genotypes (fifty three advanced breeding lines along with seventeen parents which includes check varieties) for thirteen quality traits during summer 2022-23 at Agricultural research Station, Nellore. Variance studies indicated incredibly substantial differences for all quality traits across all advanced breeding lines, indicating the presence of a sizable degree of variance. (The estimates of PCV and GCV were high for the alkali spreading value and gel consistency. The estimates of heritability and genetic advance as per cent of mean were high for the characters viz., Kernel length, Kernel length breadth ratio and Kernel length after cooking, Alkali spreading value and Gel consistency indicating the influence of additive gene action in the inheritance of these traits hence simple selection would be rewarding. The ubiquity of additive gene activity, when revealed, opened the door for additional enhancement by selection.

Keywords

Rice, genetic variability, additive gene activity and quality traits

Conclusion

In this current study, the characters that showed high heritability coupled with high genetic advance investigation viz., Kernel length, Kernel length breadth ratio and Kernel length after cooking, Alkali spreading value and Gel consistency are controlled by additive gene action can be improved through simple or progeny selection methods while the characters which showed high heritability coupled with moderate or low genetic advance can be improved by intermitting superior genotypes of segregating population developed from combination breeding.

References

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How to cite this article

Anil Kumar Gangireddy, Sreevalli Devi Muga, Sreelakshmi Chintala, Madhusudhan Puchakayala, Lavanya Kumari Padherla and Lakshmi Narayana Reddy Vemireddy (2023). Exploiting the Genetic Variability of Quality Traits in Advanced Breeding Lines of Rice (Oryza sativa L.). Biological Forum – An International Journal, 15(10): 1121-1123.