Buğdayda önemli kök ve kök boğazı hastalık etmenlerine karşı Trichoderma harzianum'un etkinliğinin araştırılması

Abstract

Inhibitions and effects of Trichoderma harzianum isolates against root and crown rot pathogens of wheat ( Fusarium culmorum, Fusarium pseudograminearum, Bipolaris sorokiniana and Rhizoctonia solani ) were investigated with dual culture and in sterile and natural soil conditions in 2006. Dual culture tests showed that T10 inhibited mycelial growth of F. culmorum 82.6%, T7 inhibited mycelial growth of F. pseudograminearum and B. sorokiniana 72.2% and 76.4%, respectively. T1 inhibited mycelial growth of R. solani 67.8%. Wheat seeds (Kinaci 97) was coated with T. harzianum conidia. In sterile soil T10 showed 65.6% effect against F. culmorum, T4 51.9% against F. pseudograminearum , T6 63.5% against B. sorokiniana and T5 73% against R. solani . In natural soil conditions T3 showed 23.3% effect against F. culmorum, T6 15.8% against F. pseudograminearum , T6 60.4% against B. sorokiniana and T10 26.8% against R. solani.