Antagonistyczny wpływ Trichoderma spp. na grzyby patogeniczne rodzaju Fusarium w warunkach in vitro

The common occurrence of fungi of the genus Fusarium in the nature is a serious problem in the protection of cereals. The presence of these pathogens significantly contributes to the reduction of grain quality and yield losses. However, fungi from the genus Trichoderma are strong antagonists which reduce the occurrence of many species of pathogenic fungi, also Fusarium spp. The aim of this experiment was to investigate the effect of the presence of fungi of the genus Trichoderma on growth and development of Fusarium pathogens in vitro. Seven species of fungi of the genus Fusarium isolated from wheat and two isolates of T. viride and one isolate of T. harzianum were applied. Tested fungi were inoculated in pairs (Trichoderma sp./Fusarium sp.) on a sterile PDA medium. The degree of growth reduction of the pathogen was evaluated over the next days. An antagonistic effect of Trichoderma spp. on culture of Fusarium spp was found in this experiment.