Influence of gibberellin on cultural and growth characteristics of vegetative mycelium of fungi strains of the genus Pleurotus during cultivation on agarized nutrient media

Very slow introduction into the culture of new for Ukraine species of edible fungi is associated primarily with more difficult conditions for the cultivation of these fungi, slow growth of mycelium, difficulties in obtaining a pure culture, sterilization of the substrate and others. Therefore, it is important to study the possibility of using growth stimulants used in crop production in industrial mushroom growing in order to intensify the process of obtaining the mycelium and fruiting bodies of mushrooms. The aim of this experiment was to study the nature of the influence of gibberellin on the cultural and growth characteristics of the vegetative mycelium of strains of the genus Pleurotus, which are classified as medium- and slow-growing on agar nutrient media. The objects of the study were industrial strains of Pleurotus pulmonarius (Fr.) Quél. (strain IBK-230) (medium-growing), Pleurotus eryngii (DC.) Quél. (strains IBK-2011 and IBK-1972) (slow-growing) obtained from the Collection of cap mushrooms of the Institute of Botany named after N.G. Kholodny NAS of Ukraine.