TY CONF TI VARIATIONS OF ACORN MORPHOLOGICAL PARAMETERS IN THE VORONEZH REGION KW polymorphism KW petiolate oak (Quercus robur L.) KW morphometric parameters of acorns KW variability JO Modern problems of animal and plant ecology AU Molchanov, V.V. AU Popova, A.A. PY 2024 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov