Introgression of Foliar Disease Resistance into Cultivated species by Backcross Breeding from Synthetic Amphidiploids in Groundnut (Arachis hypogaea L.)

Author: Varsha Kumari, M.V.C. Gowda, S.B. Yeri, Ashok Kumar Meena, Priyanka Kumawat, S.S. Rajput, Bhuri Singh, B.L. Kumhar, Rajdeep Mundiyara and R.K. Meena

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Abstract

In order to incorporate disease resistance from wild species into cultivated groundnut, the cultivated variety ICGS 76 was crossed with a synthetic amphidiploid, ISATGR 278-18. This resulted in the development of a BC2F4 introgression line population, ICGS 76 × ISATGR 278-18, which segregated for late leaf spot and rust, two significant foliar fungal diseases that cause significant yield losses to the crop. With the exception of the number of major branches, phenotypic data demonstrated strong heritability for resistance to both diseases, agronomic, and productivetyraits, as well as significant variance for genotype, environment, and genotype × environment interaction.

Keywords

Groundnut, Synthetic amphidiploids, introgression line(ILs), Rust, Late Leaf Spot (LLS).

Conclusion

The introgression of foliar disease resistance through crossing cultivated and synthetic amphidiploids in groundnut shows promise for enhancing crop resilience. This approach combines the desirable traits of both parental lines, potentially resulting in improved groundnut varieties with heightened resistance to foliar diseases, contributing to sustainable agriculture and increased yields. Further research and field trials are crucial to validate and optimize the outcomes of this introgression strategy.

References

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How to cite this article

Varsha Kumari, M.V.C. Gowda, S.B. Yeri, Ashok Kumar Meena, Priyanka Kumawat, S.S. Rajput, Bhuri Singh, B.L. Kumhar, Rajdeep Mundiyara and R.K. Meena (2024). Introgression of Foliar Disease Resistance into Cultivated species by Backcross Breeding from Synthetic Amphidiploids in Groundnut (Arachis hypogaea L.). Biological Forum – An International Journal, 16(1): 151-155.