TY JOUR TI SUGARES AND FLAVONOIDS ACCUMULATION DYNAMICS IN PEAR LEAVES UNDER SIMULATED OSMOTIC STRESS KW pear varieties KW soluble sugars KW flavonoids KW polyethylene glycol KW sorbitol KW osmotic stress JO Bulletin of KSAU AU Mishko, A.E. AU Mozhar, N.V. AU Vyalkov, V.V. AU Klyukina, A.V. PY 2024 IS 0 PB Krasnoyarsk State Agrarian University