TY JOUR TI THE VARIABILITY OF ANNUAL SEEDLINGS OF FAR EAST INTRODUCED IN SIBSАU ARBORETUM KW seed reproduction KW Mongolian oak KW Ussuriisk plum KW seedlings KW height KW diameter JO Bulletin of KSAU AU Usova, E.A. PY 2017 IS PB Krasnoyarsk State Agrarian University