Used to detect and quantify acetolactate synthase (ALS) enzyme activity in plant tissues. This kit is widely applied in agricultural research to study herbicide resistance in weeds and crops. It helps scientists evaluate how certain plants respond to ALS-inhibiting herbicides, which are commonly used to control unwanted plant growth. The assay supports the development of resistant crop varieties and monitors the effectiveness of herbicide treatments in field studies. It is also useful in physiological studies of plant metabolism and stress responses.