Bioefficacy of Trichoderma isolates against soil-borne pathogens

N. Srinivasa; T. Prameela Devi; S. Sudhirkumar*; Deeba Kamil; Jyoti Lekha Borah; N. Prabhakaran

doi:10.5897/AJMR2013.6588

African Journal of
Microbiology Research

Abbreviation: Afr. J. Microbiol. Res.
Language: English
ISSN: 1996-0808
DOI: 10.5897/AJMR
Start Year: 2007
Published Articles: 5233

Full Length Research Paper

Bioefficacy of Trichoderma isolates against soil-borne pathogens

N. Srinivasa

N. Srinivasa
Division of Plant Pathology, Indian Agricultural Research Institute (IARI), Pusa campus, New Delhi-110012, India
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T. Prameela Devi

T. Prameela Devi
Division of Plant Pathology, Indian Agricultural Research Institute (IARI), Pusa campus, New Delhi-110012, India
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S. Sudhirkumar*

S. Sudhirkumar*
Department of Agricultural Entomology, UAS, GKVK, Bengaluru-560 065, Karnataka, India
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Deeba Kamil

Deeba Kamil
Division of Plant Pathology, Indian Agricultural Research Institute (IARI), Pusa campus, New Delhi-110012, India
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Jyoti Lekha Borah

Jyoti Lekha Borah
Division of Plant Pathology, Indian Agricultural Research Institute (IARI), Pusa campus, New Delhi-110012, India
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N. Prabhakaran

N. Prabhakaran
Division of Plant Pathology, Indian Agricultural Research Institute (IARI), Pusa campus, New Delhi-110012, India
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Article Number - E8A32C045939
Vol.8(28), pp. 2710-2723 , July 2014
https://doi.org/10.5897/AJMR2013.6588

Received: 24 December 2013
Accepted: 26 May 2014
Published: 09 July 2014

Abstract

The study of morphology and bioefficacy of Trichoderma was undertaken to select the effective isolates against soil-borne pathogens. Fifty one (51) isolates (23 isolates of Trichoderma virens and 28 isolates of Trichoderma harzianum) were morphologically characterised based on the growth characteristics on PDA medium, the size and shape of phialides and conidia.These isolates were screened for bioefficacy against soil borne plant pathogens (Fusarium oxysporum, Rhizoctonia solani and Sclerotium rolfsii) based on their percent inhibition observed during dual culture, volatile and non-volatile methods. Eight T. virens isolates and 12 T. harzianum isolates were proven to be potential isolates against the soil-borne pathogens tested. No correlation was found between bioefficacy and morphology in both species isolates.