Zabolotna, A.V., Zabolotnyi, O.I., Rozborska, L.V., Zhilyak, I.D. and Datsenko, A.A. 2022. PIGMENT CONTENT AND NET PHOTOSYNTHETIC PRODUCTIVITY OF MAIZE WHEN USING PLANT GROWTH REGULATORS. Bulletin of Sumy National Agrarian University. The series: Agronomy and Biology. 46, 4 (May 2022), 9-15. DOI:https://doi.org/10.32845/agrobio.2021.4.2.