Fig. 3From: Effect of hemoglobin on the growth and Cd accumulation of pea plants (Pisum sativum L.)Effect of hemoglobin-to-cadmium (Cd) molar ratios in the Cd-contaminated soil [6.0 ± 0.61 mg Cd (kg soil)−1] on the shoot length of Pisum sativum. The different small letters indicate a statistically significant difference (95% confidence level) based on the Tukey’s test resultsBack to article page