Changes of number and diversity of microscopic fungi in the rhizosphere of ornamental plants

Abstract

During the years of investigation 138 species belonging to 43 genera were ascertained in Dianthus caryophyllus rhizosphere. The microscopic fungi of Penicilium, Aspergillus, Mucor, Trichoderma, Mortierella genus and species of Acremonium strctum, Gliocladium radicicola, Paecilomyces variotii dominated in the substratum prepared for plants growing and in rhizosphere. Species variety of dominanting genus decreased during the vegetation. Fusarium genus was an exception, of which dominanting species variety increased. Detection frequency of microscopic fugi species during the vegetation increased. In the second half of Dianthus vegetation (bloom - the end of vegetation) the dominance of pathogenic species gradually expanded: Fusarium (detection frequency (A%) 2.33 - 6.98% and 5.88-47.06%), Verticillium (2.33-23.53%), Sclerotinia (10.37-23.26%) species and Botrytis cinerea (3.51- 11.75%).