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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(12): 2028-2043
DOI: https://doi.org/10.20546/ijcmas.2020.912.240


In vitro Evaluation of Endophytic Bacteria for their efficacy against Chickpea Dry Root Rot Causing Pathogen (Rhizoctonia bataticola (Taub.) Butler)

Chiranjeevi*, M. Reddi Kumar, B. Padmodaya, N.C. Venkateswarlu,Sudhakar, R. Sarada Jayalakshmi Devi and M.K. Jyothsna
Department of Plant Pathology, S.V Agricultural College, Tirupati, A.P, India
*Corresponding author
Abstract:

A survey was conducted during January, 2017 rabi season in five major chickpea growing districts of Andhra Pradesh viz., Kurnool, Y.S.R Kadapa, Anantapuramu, Prakasam and Guntur to study the symptoms of dry root rot under field conditions and to isolate the pathogen. The major symptoms observed are bronzing, yellowing and browning of the leaves, browning and blackening of roots, shriveled roots and chlorotic leaves etc., A total of 22 isolates of R. bataticola were obtained and purified by single hyphal tip method and single sclerotial isolation technique. Pathogenicity of R. bataticola isolates was proved by soil inoculation method. Among the isolates tested maximum disease incidence (100 %) was observed with CRb 9 and it was considered as a most virulent pathogen isolate. A total of 40 antagonistic endophytic bacteria were isolated from healthy roots of different chickpea varieties and the antagonistic efficiency was tested using dual culture technique. Among the isolates CREB 37 showed maximum antifungal efficiency with 74.04 % inhibition against virulent R. bataticola isolate CRb 9.


Keywords: Survey, Symptoms, Pathogenicity, Disease incidence and Endophytic bacteria
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How to cite this article:

Chiranjeevi, N., M. Reddi Kumar, B. Padmodaya, N.C. Venkateswarlu, P. Sudhakar, R. Sarada Jayalakshmi Devi and Jyothsna, M.K. 2020. In vitro Evaluation of Endophytic Bacteria for their Efficacy against Chickpea Dry Root Rot Causing Pathogen (Rhizoctonia bataticola (Taub.) Butler).Int.J.Curr.Microbiol.App.Sci. 9(12): 2028-2043. doi: https://doi.org/10.20546/ijcmas.2020.912.240