SAPROTROPHIC MICROMYCETES IN THE RHIZOPLANE OF TOMATOES, CUCUMBERS, AND SODDY-PODZOLIC SOIL AND THEIR ABILITY TO SUPPRESS FUSARIUM ROOT-ROT

The composition of the microscopic Fungi characteristic of soddy-podzo lic soil and the rhizoplane of tomatoes and cucumbers grown in a summe r hotbed was studied. Different ecological indices were used to charac terize species diversity, curves of relative domination of species, an d the similarities and differences of mycobiota in these habitats. It was shown in a laboratory experiment that strains of fungi species, wh ich are characteristic inhabitants of the rhizosphere, apart from typi cal soil micromycetes, colonized actively the rhizoplane of cucumber a nd demonstrated an ability to suppress Fusarium root rot.