TY JOUR TI STUDYING OF DIFFERENT GENOTYPES OF THE APPLE-TREE ON WINTER HARDINESS COMPONENTS IN CONTROLLED CONDITIONS KW apple tree KW winter hardiness compo-nents KW simulated conditions JO Bulletin of KSAU AU Rachenko, M.A. AU Bakhanova, M.V. PY 2017 IS PB Krasnoyarsk State Agrarian University