TY JOUR TI Influence of chronic radioactive pollution in the conditions of the Southern Non-black earth region on the Pinus sylvestris L. seed productivity KW Pinus sylvestris L. KW ionizing radiation KW seeds KW cones JO Forestry Engineering Journal AU Skok, A.V. AU Skok, A.A. AU . Sorokopudov, V.N. PY 2025 IS 15 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov