TY JOUR TI FEATURES OF SEASONAL RHYTHMS OF GROWTH AND DEVELOPMENT OF REPRESENTATIVES OF THE GENUS COREOPSIS L. AND THE ACCUMULATION OF ANTIOXIDANT SUBSTANCES IN THEIR INFLORESENCES KW coreopsis; phenology; ascorbic acid; carotenoids; dry matter; open ground; Nikitsky Botanical Garden; Southern Coast of Crimea. JO Bulletin of Nizhnevartovsk State University AU Chichkanova, E.S. AU Grebennikova, O.A. PY 2025 IS 0 PB Nizhnevartovsk State University