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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
Index Copernicus ICI Journals Master List 2019 - IJCMAS--ICV 2019: 96.39 For more details click here
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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 2019: 96.39
Index Copernicus ICI Journals Master List 2019 - IJCMAS--ICV 2019: 96.39
For more details click here

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Original Research Articles

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(10): 35-40
DOI: https://doi.org/10.20546/ijcmas.2020.910.005


Effectiveness of Agrochemicals on Development of Diseases during Reproductive Phase in Paddy
Ramabhadra Raju Mudunuri and M. R. B. Raju*
Plant Pathology Section, Agricultural Research Station, Ragolu (Acharya N G Ranga Agricultural University), Srikakulam District - 532484, Andhra Pradesh, India
*Corresponding author
Abstract:

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.


Keywords: Rice, Sheath rot, Brown spot, Grain discoloration, Benefit cost ratio, Reproductive stage, Fungicides
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How to cite this article:

Ramabhadra Raju Mudunuri and Raju, M. R. B. 2020. Effectiveness of Agrochemicals on Development of Diseases during Reproductive Phase in Paddy.Int.J.Curr.Microbiol.App.Sci. 9(10): 35-40. doi: https://doi.org/10.20546/ijcmas.2020.910.005