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International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2018, Volume : 6, Issue : 5
First page : (14) Last page : (19)
Article doi: : http://dx.doi.org/10.18782/2320-6883

Mycoparasitism of Trichoderma spp. Against Phytophthora capsici and Rhizoctonia solani

Wafaa Mokhtari¹*, Mohamed Achouri ¹, Boubaker Hassan², Remah Abdellah¹

¹Institut Agronomic et Vétérinaire Hassan II, Plant Protection Department, Agadir, Morocco
²Ibn Zohr University, School of Sciences, Biology Department
*Corresponding Author E-mail: w_mokhtari@yahoo.fr
Received: 2.09.2018  |  Revised: 4.10.2018   |  Accepted: 10.10.2018  

 

 ABSTRACT

In this study three Trichoderma species; T. afro-harzianum (T8A4), T. reesei (T9i12) and T. guizouhense (T4) were investigated for their mycoparasitic potential in vitro against Phytophthora capsici and Rhizoctonia solani in dual culture test. Antagonistic activity was assessed by calculating the percentage of inhibition of radial growth of pathogens’ mycelium (PIRG %). T. afro-harzianum showed outstanding inhibition of pathogens’ mycelium in dual plates. The highest PIRG % recorded was 84.7 % when T. afro-harzianum (T8A4) confronted Phytophthora capsici whereas the lowest PIRG % recorded was 57.0 % when T. afro-harzianum antagonized Rhizoctonia solani. Signs of mycoparasitism like coiling and degradation of pathogens hyphae were observed.

Key words: Trichoderma, Antagonistic activity, Mycoparasitic potential, Soil-borne phytopathogens

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Mokhtari, W., Achouri, M., Hassan, B., Abdellah, R., Mycoparasitism of Trichoderma spp. Against Phytophthora capsici and Rhizoctonia solani, Int. J. Pure App. Biosci.6(5): 14-19 (2018). doi: http://dx.doi.org/10.18782/2320-7051.6883