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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): 796-805
DOI: https://doi.org/10.20546/ijcmas.2020.905.088


Status and Distribution of Rice Grain Discolouration in Different Ecosystems in Karnataka, India
B. Pampana Gouda1*, T. Narendrappa1, B. S. Chethana2 and M. K. Prasanna Kumar2
1KrishiVigyan Kendra, Haradanahally Farm, Chamarajanagara-571127, University of Agricultural Science, GKVK, Bengaluru, India
2Department of Plant Pathology, University of Agricultural Science, GKVK, Bengaluru, India
*Corresponding author
Abstract:

A roving survey was conducted during Kharif 2017 and 2018 in five major rice growing ecosystems viz., Kabini and Kaveri, Hilly upland, Thungabhadra and Upper Krishna, Thunga and Bhadra and Coastal belts to know the incidence and severity of grain discolouration in Karnataka. Grain discolouration was recorded in all the samples collected from major rice growing ecosystems. The mean per cent grain discolouration and mean per cent disease index during Kharif 2017 was 12.87 and 12.04 and Kharif 2018 was 13.24 and 12.27 respectively. Both the years, the maximum percent incidence of disease 14.95 and 15.47 and per cent disease index 13.64 and 13.94 respectively was observed in Hilly upland followed by costal belt 14.33 and 15.00 and 13.04 and 13.67 respectively, whereas the least incidence 11.23 and 11.85 and severity 10.22 and11.03 was noticed in Thunga and Bhadra ecosystem.


Keywords: Grain discolouration, Survey, Ecosystem, Disease incidence, Severity
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How to cite this article:

Pampana Gouda. B., T. Narendrappa, B. S. Chethana and Prasanna Kumar. M. K. 2020. Status and Distribution of Rice Grain Discolouration in Different Ecosystems in Karnataka, India.Int.J.Curr.Microbiol.App.Sci. 9(5): 796-805. doi: https://doi.org/10.20546/ijcmas.2020.905.088