TY JOUR TI PHENOLIC CONTENT IN PEAR LEAVES OF DIFFERENT CULTIVARS KW pear cultivars KW stress KW total phenols KW flavonoids KW malondialdehyde JO Bulletin of KSAU AU Mishko, A.E. AU Klyukina, A.V. AU Vyalkov, V.V. PY 2023 IS 0 PB Krasnoyarsk State Agrarian University