Using of Trichoderma spp. (Trichoderma Harzianum and Trichoderma Koningii) and its extract to control pathogenic fungi in the soil in vitro

Abstract

The present study was designed to investigate the effect of Trichoderma harzianum and Trichoderma Koningii on pathogenic fungi such as Fusarium oxysporum, Rhizoctonia solani and Pythium sp. The results of the study showed the ability of fungi Trichoderma harzianum and Trichoderma koningii on the inhibition of pathogenic fungi Fusarium oxysporum, Rhizoctonia solani and Pythium sp.in medium PDA as well as the viability of bio-fungi on production of the enzymes cellulase, chitinase and amylase and dissolve phosphorus in the medium,also these fungi have effect on the growth indictorson tomato plant.