TY CONF TI INTRODUCTION OF KARELIAN BIRCH TO THE CULTURE IN VITRO KW in vitro KW Karelian birch KW cloning KW clonal micropropagation KW Red Book KW hybridization JO Modern problems of animal and plant ecology AU Isakov, I.Y. AU Bokareva, N.S. PY 2024 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov