Occurrence and Distribution of Sesame Alternaria Blight under Environmental Conditions of Transitional Plain of Luni Basin of Rajasthan

Author: Jitendar Kumar Sharma, H.V.S. Shekhawat, Prakash Chand Yadav, Pravin R. Patil and Jagdish Prasad Bishnoi

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Abstract

Sesame (Sesamum indicum L.), is an ancient important oilseed crop belonging to the family Pedaliaceae and native of India. Alternaria blight of sesame is widespread and have continued to be the major constraints in the production and productivity of sesame all over the country in mostly in the state of Rajasthan particularly. Looking to the economic importance of the disease and very meagre information available related to disease in Rajasthan, the present plant pathological studies were undertaken to generate the information on important various aspects of disease. To find out the status sesame Alternaria blight a rapid roving survey was conducted to record sesame Alternaria blight disease intensity during two Kharif seasons (2019 and 2020), covering 100 sesame crop fields of 20 villages in Pali region under transitional plain of Luni Basin (ZoneIIb) of Rajasthan, India. Alternaria blight disease appeared in all the surveyed areas of Pali regions from initiation of flowering stage to

Keywords

Alternaria blight, survey, disease intensity and sesame.

Conclusion

From the study it is clearly evident that during the survey, occurrence of sesame Alternaria blight disease was observed in serious proportion, inflicting heavy losses in different areas of Pali region under transitional plain of Luni Basin (ZoneIIb) of Rajasthan, India Considering the seriousness of the disease, the present investigation was carried out on disease intensity related information on this important pathological problem and to develop suitable management strategies to prevent the crop losses. Alternaria blight disease intensity was ranging from 0.00 to 31.11 per cent with an average of 09.43 per cent in during 2019. While, during 2020 the average per cent disease intensity was 38.33, with ranging from 12.22 to 64.44 per cent. The maximum disease incidence was observed at Sonai Manji (31.11%) during 2019. Whereas, during 2020 Nayagaon recorded maximum per cent disease intensity (64.44%). Overall, our study provides evidence on the status of alternaria blight severity wit

References

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How to cite this article

Sharma, J.K., Shekhawat, H.V.S., Yadav, P.C., Patil, P.R. and Bishnoi, J.P. (2021). Occurrence and Distribution of Sesame Alternaria Blight under Environmental Conditions of Transitional Plain of Luni Basin of Rajasthan. Biological Forum – An Internatio