Influence of local growth conditions on the change of species composition of mycobiots of pine seeds

The species composition of micromycetes Scots pine seeds, collected from plantations growing in different forest vegetation conditions and selected trees age groups, was studied. It found that the most common - Alternaria alternata, Cladosporium cladosporioides, Fusarium oxysporum, Mycelia sterilia. Dominant micromycetes, particular Penicillium cyclopium, sambucinum, which are dangerous for development healthy planting material, have been identified. largest number seeds wet birch (A3) 189 fresh beer (A2) 103 smallest (B2) raw subir (B3), respectively: 92 93 isolates. highest frequency occurrence on experimental samples pine, stands, had micromycetes: Trithothecium roseum taken Mortierella alpine, P. canescens, lanosum, variabile, sporotrich lowest frequency. noted sterilia (9.2%), sporotrichioides (9.6%) were while A. tenuissima, verticillioides least common. Trichothecium 1.9%. similarity mycobiota young medieval (similarity index 84.2%) mature 89.4%) Less observed between fungi identified is -73.6%). similar plantations, mature. varied 73.6 89.4%). Keywords: groups trees, mycobiota, type conditions, pine.