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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2020.9(5): 3390-3398
DOI: https://doi.org/10.20546/ijcmas.2020.905.403


Prevalence of Stemphylium Blight Disease on Kharif Onion in Bihar, India
J. K. Tiwari1*, Arun Kumar2, H. M. Singh1, Divya3 and T.S. Mishra4
1National Horticultural Research and Development Foundation, Patna (Bihar), India
2Bihar Agricultural University, Sabour- Bhagalpur (Bihar), India
3Sam Higginbottom University of Agriculture, Technology and Science,Prayagraj (U.P.), India
4KVK West Kameng, Dirang (Arunchal Pradesh), India
*Corresponding author
Abstract:

Survey conducted during the year 2018 and 2019 at three stage of crop growth of onion in six districts of the Bihar revealed the prevalence of disease in all onion growing areas of the Bihar during the month of 2nd fortnight of August, September and October, while during the month of prevalence of disease was recorded at only few locations with less intensity, while as rest of the locations were disease minimum incidence with overall incidence of 2.47, 24.58 and 39.07 and intensity of 0.99, 6.02 and 16.77 %, during the month of August, September and October, respectively. The disease was severe during 2019 with overall mean disease incidence of 2.76, 25.34 and 41.32 and intensity of 1.15, 6.52 and 17.45 % in comparison to 2018 with overall incidence of 2.17, 23.82 and 37.78 and intensity of 0.83, 5.52 and 16.09 %, during the month of August, September and October, respectively. Perusal of the pooled data of two years revealed that the disease incidence and intensity in surveyed districts varied from 31.50 to 57.97 and 14.19 to 18.26 %, respectively with highest incidence and intensity recorded in Patna and lowest in Samastipur of the 6 districts surveyed, highest disease incidence (61.99%) was recorded at Barh Patna followed by Fatuwa (60.16%), Patna city (55.16 %), Danapur (54.56 %), Bhojpur Kadid (50.86 %), Dumraon (49.39 %), Turiganj (47.70 %) and Raghunathpur (42.56 %) Whereas highest disease intensity (22.89 %) was recorded at Barh Patna followed by Bhojpur Kadid Baxur (22.02 %), Begusarai (21.55 %), Harnaut Nalanda (21.07 %), Desari Vaishali (20.60 %), Dumraon Baxur (20.48 %), Fatuwa Patna (20.06 %) and least incidence (29.04 %) in Bihar Sharif was recorded and least intensity (11.02 %) in Dalsinghsarai Samastipur was recorded.


Keywords: Prevalence, Disease, Onion, Incidence, Intensity
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How to cite this article:

Tiwari, J. K., Arun Kumar, H.M. Singh, Divya and Mishra, T.S. 2020. Prevalence of Stemphylium Blight Disease on Kharif Onion in Bihar.Int.J.Curr.Microbiol.App.Sci. 9(5): 3390-3398. doi: https://doi.org/10.20546/ijcmas.2020.905.403