Used to measure sucrose phosphate synthase (SPS) enzyme activity in plant tissues, this ELISA kit helps researchers assess photosynthetic efficiency and carbohydrate metabolism. It is widely applied in plant physiology studies, especially in understanding sugar biosynthesis under different environmental stresses such as drought, salinity, or temperature extremes. The kit supports crop improvement programs by enabling evaluation of SPS regulation in genetically modified or stress-tolerant plant varieties. It is also used in agricultural research to optimize fertilizer use, light exposure, and growth conditions for enhanced crop yield.