Sunflower dry rot and additional differentiating characteristics of Rhizopus Ehrenb. species

The article describes and presents the photos of dry rot symptoms on sunflower heads. According to research results there was discovered the possibility of using radial velocity of fungi growth in agar medium under the temperature of 25 °C and sporangio-spores surface for determination of groups and species of fungi of Rhizopus Ehrenb genus. The photos of the most characteristic morphological features of fungi species of Rhizopus Ehrenb genus are presented.