KalіuzhnaL.V. and Polishchuk, V.V. 2023. FEATURES OF THE PHENOLOGICAL PHASES OF GROWTH AND DEVELOPMENT OF PLANT VARIETIES OF THE TULIP GENUS (TULIPA L.). Bulletin of Sumy National Agrarian University. The series: Agronomy and Biology. 53, 3 (Dec. 2023), 9-15. DOI:https://doi.org/10.32782/agrobio.2023.3.2.