TY JOUR TI Influence of longwave UV irradiation at increasing of sowing qualities of Pinus silvestris L. seeds KW ultraviolet radiation source KW dis-charge lamps KW energy saving lamps KW laboratory germination KW pre-treatment KW radiation dose JO Forestry Engineering Journal AU Loshchenov, P.. AU Romanov, V.. AU Korepanov, D.. AU Bogatyrev, M.. PY 2014 IS 4 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov