| Аннотация | The article aimed at assessing introduction prospect for 32 species of the genera Acer L., Betula L., Fraxinus
L., Padus Mill., Syringa L. and Sorbus L. at the Botanical Gardens of Petrozavodsk State University (Southern
Karelia, central taiga subzone). The degree of introduction prospect was assessed with the use of the integral
assessment method by P. I. Lapin and S. V. Sidneva. Such indicators as annual maturing of shoots, regular
growth of axial shoots, winter hardiness of plants, habit preservation, shoot-forming capability, generative
reproduction capability, capability to reproduce in plantation were taken into account. It was found that Acer
ginnala, Acer platanoides, Betula platyphylla, Betula ulmifolia, Fraxinus excelsior, Padus virginiana, Padus
pensylvanica, Padus maackii, Syringa vulgaris, Syringa pubescens, Syringa emodi, Syringa × henryi, Syringa
josikaea, Syringa villosa, Syringa vulgaris var. Congo, Sorbus decora, Sorbus virginianis and Sorbus аmericana
have the highest prospect rates (80–100 points), the other studied species – fairly high prospect rates (56–79
points). All the studied introduced species of deciduous trees can be successfully used in Karelia for gardening
and landscaping purposes. Acer platanoides, Betula platyphylla, Fraxinus excelsior, Padus pensylvanica, Padus
maackii, Syringa vulgaris и Sorbus decora show the highest degree of introduction prospect (about100 points). |