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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 (2017)
[Effective from January 1, 2017]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
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 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2018.7(11): 893-900
DOI: https://doi.org/10.20546/ijcmas.2018.711.106


Effect of Weather Parameters on Infestation of Blast Disease (Pyricularia oryzae) in Rabi Season Rice (Oryza sativa L.) in East & South Eastern Coastal Plain of Odisha
J. Pradhan1*, A. Baliarsingh1, G. Biswal2, M.P. Das3 and S. Pasupalak1
1Department of Agricultural Meteorology, College of Agriculture, OUAT, Bhubaneswar, Odisha, India
2Department of Plant Pathology, College of Agriculture, OUAT, Bhubaneswar, Odisha, India
3Department of Vegetable Science, College of Agriculture, OUAT, Bhubaneswar, Odisha, India
*Corresponding author
Abstract:

An investigation was carried out at Agrometeorological field, Central Research Farm, Odisha University of Agriculture and Technology, Bhubaneswar in rabi season, 2017 in natural condition on study of various aspects of effect of weather (maximum temperature, minimum temperature, rainfall, maximum relative humidity, minimum relative humidity, wind velocity, bright sunshine hours and evaporation) on infestation of P. grisea in rice (in the varieties Khandagiri and Lalat). In rabi season among the two varieties, Lalat variety showed the higher blast incidence (2.17%) whereas Khandagiri variety showed lowest blast incidence (1.32%). The incidence of blast disease in variety Khandagiri was significant and high positively correlated with Minimum Temperature, Wind velocity, Evaporation. The blast disease incidence was positively correlated with Maximum Temperature, Minimum Relative humidity. The incidence of blast disease in variety Lalat was significant and high positively correlated with Minimum Temperature. The blast disease incidence was positively correlated with Maximum Temperature, Wind velocity, Evaporation and negatively correlated with Maximum Relative humidity. Rainfall, Minimum Relative humidity and BSH have no effect on the disease incidence. Weather parameters played a major role in disease incidence in rabi season and in this location, among the two different varieties Lalat variety is very susceptible to blast disease than Khandagiri.


Keywords: Rice, Rice blast disease, Variety, Weather parameters, Pyricularia oryzae
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How to cite this article:

Pradhan, J., A. Baliarsingh, G. Biswal, M.P. Das and Pasupalak, S. 2018. Effect of Weather Parameters on Infestation of Blast Disease (Pyricularia oryzae) in Rabi Season Rice (Oryza sativa L.) in East & South Eastern Coastal Plain of Odisha.Int.J.Curr.Microbiol.App.Sci. 7(11): 893-900. doi: https://doi.org/10.20546/ijcmas.2018.711.106