The strain differences of Rhynchosporium secalis in morphological and cultu
ral peculiarities (structure and color of colonies, rate of growth and spor
ulation of fungus) depending on composition of artificial medium were detec
ted. The best media for vegetative growth and sporulation of R. secalis str
ains were potato-glucose agar (PGA) and PGA with 0.1 % yeast extract.