Kurylenko, A.O., Kurylenko, O.V., Kuchmenko, O.B. and Havii, V.M. 2022. INFLUENCE OF PRESOWING TREATMENT OF SEEDS WITH COMPOSITIONS OF METABOLICALLY ACTIVE SUBSTANCES ON MORPHOMETRIC INDEXES OF WINTER RYE VARIETIES SYNTHETIC 38 AND ZABAVA AT DIFFERENT STAGES OF ONTOGENESIS. Bulletin of Sumy National Agrarian University. The series: Agronomy and Biology. 46, 4 (May 2022), 25-32. DOI:https://doi.org/10.32845/agrobio.2021.4.4.