TY JOUR TI Impact of biological growth regulators on the ratio of photosynthetic pigments of Campanula alliariifolia KW Campanula alliariifolia KW salicylic acid KW chlorophyll a KW chlorophyll b KW carotenoids KW Bacillus subtilis JO Agrarian Bulletin of the AU Reut, A.A. AU Allayarova, I.N. AU Biglova, A.R. AU Lastochkina, O.V. PY 2024 IS 24 PB Ural State Agrarian University