Plant growth regulators (PGRs) can positively or negatively influence photosynthesis, depending on the chemical. PGRs alter photosynthesis by manipulating the leaf anatomy, morphology, and physiology. Physiological effects include a better stress response, and morphological alterations improve light infiltration in the canopy. Anatomically, PGRs improve chlorophyll content and the structure and functions of the photosynthetic apparatus.… Continue reading…