TY JOUR TI EFFECT ASSESSMENT OF CROWN FORMATION AND VARIETIES ON APPLE TREES BIOLOGICAL CHARACTERISTICS KW gardening KW apple tree KW domestic varieties KW agricultural technology KW crown formation JO Bulletin of KSAU AU Kochubey, A.A. AU Oplachko, R.A. PY 2025 IS 0 PB Krasnoyarsk State Agrarian University