Fig. 4From: Impact of sewage water irrigation on Datura innoxia grown in sandy loam soilAlternations in the capacities of enzymatic antioxidant of Datura innoxia leaves; CAT, catalase (a), APX, ascorbate peroxidase (b) and GST, glutathione-S-transferase (c) and the activities of PAL, phenylalanine ammonia lyase (d) as influenced by duration of well and sewage water irrigation (weeks). The data are averages of 4 replicates ± SEBack to article page