Used to measure ascorbate peroxidase (APX) enzyme activity in plant samples, this ELISA kit helps researchers assess plant oxidative stress responses. It is widely applied in plant physiology and stress biology studies to evaluate how plants respond to environmental stresses such as drought, salinity, extreme temperatures, and heavy metals. By quantifying APX activity, scientists can determine the efficiency of the antioxidant system in plants, which plays a key role in scavenging harmful hydrogen peroxide. This kit supports research in crop improvement, environmental toxicology, and genetic engineering by providing a reliable method to monitor plant health and stress tolerance at the biochemical level.