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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 2019: 96.39
Index Copernicus ICI Journals Master List 2019 - IJCMAS--ICV 2019: 96.39
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.2020.9(12): 1042-1052
DOI: https://doi.org/10.20546/ijcmas.2020.912.126


Antagonistic Potentiality of Trichoderma Isolates on Soil Borne Fungal Plant Pathogens
M. Chaithra1*, N. S. Pankaja1, Venkatesh1 and P. S. Benherlal2
1Department of Plant Pathology, College of Agriculture, V. C. Farm, Mandya, UAS, Bangalore, India
2Department of Plant Biochemistry, UAS, GKVK, Bangalore, India
*Corresponding author
Abstract:

In the present investigation, twenty-two Trichoderma isolates collected from different sources, along with one commercial isolate (Trichoderma viride) were screened for the antagonistic efficacy against soil borne plant pathogens viz., Fusarium oxysporum f. sp. vasinfectum, Rhizoctonia solani, Sclerotium rolfsii, and Phytophthora capsici. The result indicated that all twenty-two Trichoderma isolates effectively inhibited the mycelia growth at varied levels. Highest mycelial growth inhibition of F. oxysporum f. sp. Vasinfectum was recorded by RKd-Cu (97.44%) which was obtained from rhizosphere of cucumber. PSV and RMy-B isolates showed 100 per cent mycelial growth inhibition of R. solani, which was obtained from paddy straw and soil rhizosphere of banana crop respectively. RSr-Sc showed highest mycelial growth inhibition of two pathogens: S. rolfsii (95.19%) and P. capsici (96.25%). Whereas, the commercial isolate recorded growth inhibition of 72.59% (F.oxysporum f. sp. vasinfectum), 72.33% (R.solani), 72.48% (S.rolfsii) and 81.08% (P.capsici), which was significantly low compared to other isolates. Least Per cent of growth inhibition were recorded with RMl-T (72.59%), RKd-HG (72.22%), RD-A (66.70%) and RMy-SC (75.83%) against F. oxysporum f. sp. vasinfectum, R. solani, S. rolfsii and P. capsici respectively. Thus, from this study it can be concluded that effective isolates obtained from different geographical location have the better antagonistic activity than the commercial isolate against the soil borne fungal plant pathogens.


Keywords: Trichoderma spp., Mycelial growth inhibition, Fusarium oxysporum f. sp. vasinfectum, Rhizoctonia solani, Sclerotium rolfsii, Phytophthora capsici
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How to cite this article:

Chaithra, M., N. S. Pankaja, Venkatesh and Benherlal, P. S. 2020. Antagonistic Potentiality of Trichoderma Isolates on Soil Borne Fungal Plant Pathogens.Int.J.Curr.Microbiol.App.Sci. 9(12): 1042-1052. doi: https://doi.org/10.20546/ijcmas.2020.912.126