Screening of Indian Mustard Genotypes against White Rust Disease based on Disease Indexing

Author: Aditi Shrivastava, M.K. Tripathi, Sushma Tiwari, Purnima Singh, Niraj Tripathi, Prakash Narayan Tiwari, Prerana Parihar, J. Singh and Shailja Chauhan

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Abstract

Mustard is an important oilseed crop in India. Various biotic factors are responsible for yield reduction as well as seed quality in mustard. Among different biotic stresses, white rust causes yield loss and quality in mustard up to a great extent. White rust not only degrades seed quality but also significantly lowers its oil content. As it is distinguished that, among various disease management tactics, use of resistant varieties is the best choice owing to cost-effectiveness and environment friendly approach. However, till now only few resistant sources against this disease has been reported. Therefore, in the present investigation, 75 Indian mustard genotypes have been evaluated in field under epiphytotic conditions during Rabi 2021-22. Some of the genotypes showed resistance against white rust disease. These resistance sources may be helpful to develop superior cultivar (s) for managing white rust disease where mustard cultivation is dominant.

Keywords

Resistance, White rust, disease indexing, biotic stress, Indian mustard

Conclusion

It has been determined that the germplasm lines of Indian mustard exhibited resistant to moderately resistant response in field screening trial against white rust disease. It is possible that these germplasm lines could be used in future breeding programs to develop resistant cultivars, which could then be commercialized for cultivation in farmer's fields. In order to combat the constantly changing diseases, it is crucial to identify a variety of resistance genes in any crop species. With the long-term goal of diversifying the current cropping system, significant efforts have recently been made in India to horizontally increase the area under mustard cultivation in the non-traditional locations. Therefore, it is necessary to always have access to donor parents which have a high level of resistance against white rust disease.

References

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How to cite this article

Aditi Shrivastava, M.K. Tripathi, Sushma Tiwari, Purnima Singh, Niraj Tripathi, Prakash Narayan Tiwari, Prerana Parihar, J. Singh and Shailja Chauhan (2023). Screening of Indian Mustard Genotypes against White Rust Disease based on Disease Indexing. Biological Forum – An International Journal, 15(4): 268-272.