Figure 1From: Lead heavy metal toxicity induced changes on growth and antioxidative enzymes level in water hyacinths [Eichhornia crassipes (Mart.)]Accumulation of lead heavy metal content in root, petiole and leaf tissues of E . crassipes seedlings. The error bars indicate mean ± SE (n = 3), followed by different letter are statistically significant at p ≤ 0.05 levels.Back to article page