Monitoring of natural occurence of mycoparasitic and antagonistic fungi in soil in the region of South Bohemia

The thesis is focused on monitoring of natural occurrence of mycoparasitic fungi in arable soils. Study was aimed to isolate those fungi from selected plots with conventional and organic farming systems of the region of South Bohemia. Four isolated method were used for isolation of mycoparasitic fungi from soil.Among all, species of genus of Trichoderma, Trichoderma virens, Clonostachys rosea f. catenulata and Lecanicillium muscarium were the most frequently present and isolated species.The radial growth of strains and their production characteristic was evaluated. The efficacy of Trichoderma strains against phytopathogenic fungi (S. sclerotiorum, Rhizoctonia solani, Botrytis cinerea a Fusarium solani) was evaluated