TY JOUR TI Species differences in the content of photosynthetic pigments in plants of arid territories of the South of Russia KW chlorophyll KW carotenoids KW Calligonum aphyllum KW Haloxylon aphyllum KW Tamarix ramosissima KW Eurotia ceratodes KW adaptive potential KW photochemical activity JO Agrarian Bulletin of the AU Kalmykova, E.V. AU Mel'nik, K.A. AU Kuz'min, P.A. PY 2023 IS 232 PB Ural State Agrarian University