KalіuzhnaL. V., and V. V. Polishchuk. 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), 9-15. https://doi.org/10.32782/agrobio.2023.3.2.