Approximate Solution of Optimal Pulse Control Problem Associated with the Heat Conduction Process

Abstract

Development of new biological preparations to control Heterobasidion root rot is a complex process, but when a potential antagonist is identified, cultivation of the fungus is required. In this study, five different substrates (deciduous sawdust, coniferous sawdust, rye bran, straw and corn kernels) were tested as substrates for the cultivation of three fungal species: Bjerkandera adusta, Phlebiopsis gigantea, and Sistotrema brinkmannii, which could be potentially used against Heterobasidion spp. Mycelial growth was evaluated visually, and oidia production was estimated microscopically. In the straw substrate, P. gigantea produced significantly more (p < 0.05) oidia compared to the other substrates. In addition, oidia production at two different incubation temperatures were compared. As a result, the best substrate for cultivation of all three fungal species was coniferous sawdust.