Golden Mosaic Virus Disease of Cowpea in Rajasthan: Survey, Occurrence and Yield Loss

Author: Anil Kumar, G.S. Rathore, Sunil Kumar*, Mahabeer Singh, Shivam Maurya, Poonam Kumari, Kiran, Neelam Kumari and Lalita Lakharan

Download PDF

Abstract

Cowpea (Vigna unguiculata L.) is a major pulse crop in India's arid and semi-arid regions. Based on a field survey conducted in four tehsils of Jhunjhunu district of Rajasthan, we can conclude that MYMIV is the most prevalent pathogen responsible for yellow mosaic disease of cowpea in the Jhunjhunu district during the months of August to September 2020-2021, during rainy season MYMIV is became a very serious problem in late sown crop. The survey provided baseline information on the distribution and occurrence of cowpea golden mosaic disease, incidence and severity in the major cowpea growing area of Jhunjhunu district in Rajasthan state. During the survey, discussions were held with the farmers concerned, regarding occurrence, incidence and yield losses due to this disease. In four tehsils of Jhunjhunu district, disease intensity ranged from 29.31 to 60.95 per cent. Jhunjhunu tehsil has the highest disease intensity (54.12 per cent), followed by Khetri tehsil (52.50 per cent). Plants

Keywords

Cowpea, survey, golden mosaic virus disease, disease severity, yield loss.

Conclusion

We can conclude that MYMIV is the most prevalent pathogen responsible for yellow mosaic disease of cowpea across the Jhunjhunu district in Rajasthan based on a field survey conducted in four tehsils of the Jhunjhunu district. Due to the rainy season, MYMIV is a serious problem in this crop during the months of August and September. According to a survey of cowpea-growing tehsils in the Jhunjhunu region, none of the locations were found to be free of the disease. Jhunjhunu tehsil (54.12 per cent) had the highest golden mosaic disease intensity, while Udaipurwati tehsil had the lowest (35.48 per cent. The disease starts out as small yellow spots on young leaves, then spreads to the rest of the leaves. Shortening of internodes, necrotic spots on leaves, and stunting of plants occur as a result of severe infection, with few blooms and malformed pods yielding small, immature, and shriveled seeds. Maximum yield losses of (58.38 per cent) were discovered during yield loss calculation when dis

References

-

How to cite this article

Kumar, A.; Rathore, G. S.; Kumar, S.; Singh, M.; Maurya, S.; Kumari, P.; Kiran ; Kumari, N. and Lakharan, L. (2022). Golden Mosaic Virus Disease of Cowpea in Rajasthan: Survey, Occurrence and Yield Loss. Biological Forum – An International Journal, 14(