Fig. 3From: Heavy metal remediation in soil with chemical amendments and its impact on activity of antioxidant enzymes in Lettuce (Lactuca sativa) and soil enzymesAntioxidant enzyme activity of each treatments a CAT, b APX, c GR. All value was an average of triplicate measurement and error bar represent standard deviation. Different letters represent statistical difference at the significance of p < 0.05Back to article page