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 |
A two year field study was conducted at Agricultural Research station, Ragolu to study the efficacy of selected agrochemicals on the development of diseases (sheath rot, brown spot and grain discolouration) during reproductive phase in paddy. Treatments were imposed for two times, once at 50% panicle emergence and 15 days subsequently. Among the fungicides, foliar application of propiconazole @ 1 ml/L was found most effective in minimizing the development of sheath rot (5.9%), brown spot (8.8%) and grain discoloration (7.4%) in comparison to 27.0, 25.8 and 10.9 percent disease incidence respectively recorded in untreated control. The treatment was found to be statistically at par with trifloxystrobin + tebuconazole @ 0.4 g/L and carbendazim (1 g/L). Benefit cost ratio of 1.5:1 was realized in propiconazole and trifloxystrobin + tebuconazole treatments. The ineffectiveness of antibiotic treatment (streptomycin sulphate + tetracycline) suggests the predominant role of fungal pathogens in the development of sheath rot symptoms. The study emphasizes the importance of timely chemical interventions in minimizing disease load and maximizing returns in paddy.
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