Document Type : Research Paper


1 University of Ouargla, Faculty of Life and Nature Sciences, Agronomy Department, Saharan Bioresources Laboratory Kasdi Merbah, Algeria.

2 National Institute of Agronomic Research, Plant protection Laboratory, Station of Sidi Mehdi, Touggourt, Algeria.

3 Biology department, Faculty of Life and Nature Sciences, Valcore, Laboratory, University of Boumerdes, Boumerdes, Algeria


Three modes of action of Trichoderma strain are evaluated, with in vitro tests, in order to verify the potential of this antagonistic against Fusarium oxysporum f. sp. lycopersici isolated from tomato plant in Oued Righ region, Algerian southeast. Inhibition rates of Fusarium wilt of the order of 56, 65 and 70% are respectively obtained with antibiosis, competition and mycoparasitism mechanisms. Results, analyzed by ANOVA, are confirmed that the biological agent showed significant fungistatic effect towards Fusarium wilt of tomato most importantly by mycoparasitism that constitutes the most effective mechanism among all the tests applied. 


Main Subjects

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