SAHEED IBRAHIM, M. et al. 2025. Photoperiodic influence of light-emitting diode (LED) on vegetative parameters of Spinacia oleracea L. (Spinach). Studia Universitatis Babeș-Bolyai Biologia. 70, 2 (Dec. 2025), 69–82. DOI:https://doi.org/10.24193/subbbiol.2025.2.05.