%0 Conference Article %T FORMATION OF THE SPECIES AND BREEDING COMPOSITION OF THE GENUS BETULA L. EX SITU IN THE VORONEZH REGION %A Boltnev, I.A. %A Koltunova, L.I. %A Isakov, I.Y. %K bioresource collection, introduction, genus Betula, height growth, hybridization, and reproduction systems %J CONTEMPORARY CHALLENGES AND TOPICAL ISSUES OF BIODIVERSITY AND SUSTAINABILITY OF PLANT COMMUNITIES %D 2026 %P 5 %I FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov