We performed a statistical analysis of ectomycorrhizal communities, which occur on containerized and bare root seedlings of white fir, planted on two plots (north and south facing), we formed groups according to the time of sampling (initial phase, after one and after two growing seasons) and by the type of seedling (containerized and bare root seedlings). Results showed higher initial species richness, percentage root mycorrhizal colonization and species diversity indices in bare root seedlings. After field growth containerized seedlings species richness increased insignificantly, and the bare root seedlings species richness and other species diversity indices significantly decreased. According to the results, the species diversity is not only affected by the initial ectomycorrhizal types present, but the associations can also change according to the site conditions and the presence of propagules on the site itself. After the first and second growing seasons, planting exposition did not affect the ectomycorrhizal community in white fir. The number of types that appeared only with seedlings on the north or south facing slope is the same, but the number of common ectomycorrhizal types is relatively high, which confirms that the planting exposition does not significantly affect ectomycorrhizal communities on the species level.
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