National Academy of Agricultural Sciences (NAAS)
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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 |
The present in-vitro study was conducted at the Department of Plant Pathology, University of Agricultural Sciences, Dharwad, Karnataka, India during July 2018, to evaluate different fungicides against rice blast incited by Magnaporthe oryzae Couch and Kohn. Among the four contact fungicides tested, propineb 70 % WP recorded cent per cent inhibition of mycelial growth in all the concentrations (i.e., 1000 ppm, 1500 ppm and 2000 ppm), mancozeb 75 % WP recorded next highest inhibition of mycelial growth. Among the eight systemic fungicides, complete inhibition of mycelial growth of the fungus was recorded in all the concentration (i.e., 500 ppm, 750 ppm and 1000 ppm) in six fungicides viz., propiconazole 25 % EC, carbendazim 50 % WP, thiophanate methyl 70 % WP, tebuconazole 25 % EC, isoprothiolane 5 % EC and tricyclazole 75 %. Minimum inhibition was observed in azoxystrobin 25 % SC, with 55.83, 63.62 and 70.52 per cent inhibition at 500, 750 and 1000ppm concentration respectively with a mean of 63.66 per cent. In general, the inhibition of radial growth of fungus increased with increase in concentration of each fungicide.
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