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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.2018.7(3): 355-365
DOI: https://doi.org/10.20546/ijcmas.2018.703.041


Evaluation of PGPR Isolates for the Management of Beans Wilt Caused by Fusarium oxysporum f. sp. phaseoli
Stanzin Dorjey1*, T.A. Shah1, N.A. Bhat1, P.A. Sofi2, Z.A. Baba3 and M.A. Chatoo4
1Division of Plant Pathology
2Division of Genetics and Plant Breeding
3Division of RRS
4Division of Vegetable Science, Faculty of Agriculture, Sher-e-Kashmir University of Agricultural Sciences and Technology, Wadura Sopore-193201, India
*Corresponding author
Abstract:

Fungal pathogen F. oxysporum (Schlecht.) f. sp. phaseoli Kendrick and Synder was isolated from the infected roots of bean plants. Microscopic examination revealed that the mycelium was septate which produced microconidia and macroconidia. The pathogen was accordingly identified after comparing with that of the standard texts. A total number of 24 rhizobacterial were isolated from the rhizosphere of different crops. Morphological studies revealed that out of 24 rhizobacterial isolates 9 showed light green, 2 green, 8 cream, 4 white and 1 red colour, 12 were round, non-spreading type whereas, 12 were irregular and spreading type colonies. Among all the rhizobacterial strains, 14 strains showed Gram -ve reaction, whereas, 10 rhizobacterial strains showed Gram +ve reaction. Out of the 24 isolates, 17 were small rods, whereas, 7 isolates were large rods. Under in vitro conditions, among 24 isolates 5 exhibited potential of acting as biocontrol agents in which isolate I-5 exhibited minimum radial growth (28.00 mm), resulting in inhibition of by 68.89 % over control followed by isolate I-21 recorded radial growth of 29.63 mm, thereby inhibiting the growth of pathogen by 67.08 % over control. Among all the five selected PGPR isolates and carbendazim treated with beans seed showed minimum disease incidence and disease intensity compared to control. The seed treatment with carbendazim recorded minimum disease incidence (3.12%) and disease intensity (0.83%), followed by seed treatment with Stenotrophomonas maltophilia recorded minimum disease incidence (4.86 %) and disease intensity (1.39 %) respectively.


Keywords: F. oxysporum f. sp. phaseoli, PGPR, Biological management, Beans
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How to cite this article:

Stanzin Dorjey, T.A. Shah, N.A. Bhat, P.A. Sofi, Z.A. Baba and Chatoo, M.A. 2018. Evaluation of PGPR Isolates for the Management of Beans Wilt Caused by Fusarium oxysporum f. sp. phaseoli.Int.J.Curr.Microbiol.App.Sci. 7(3): 355-365. doi: https://doi.org/10.20546/ijcmas.2018.703.041