Table 3.
Pearson correlation coefficient (r-value, n = 36) between trace metals in faba bean tissues and their concentrations in soil. OM: organic matter.
Plant trace metals | Soil trace metals | Soil pH | Soil OM content | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Al | Co | Cr | Cu | Fe | Mn | Ni | Pb | Zn | |||
Roots | |||||||||||
Al | 0.43** | 0.31 | 0.64*** | 0.42* | 0.51** | 0.66*** | 0.50** | 0.40* | 0.63*** | −0.74*** | 0.53** |
Co | 0.72*** | 0.58*** | 0.40* | 0.61*** | 0.33 | 0.28 | 0.76*** | 0.59*** | 0.59*** | −0.60*** | 0.49** |
Cr | 0.80*** | 0.58*** | 0.65*** | 0.71*** | 0.52** | 0.56*** | 0.81*** | 0.75*** | 0.61*** | −0.83*** | 0.67*** |
Cu | 0.80*** | 0.55** | 0.60*** | 0.70*** | 0.50** | 0.58*** | 0.80*** | 0.69*** | 0.68*** | −0.86*** | 0.69*** |
Fe | 0.70*** | 0.61*** | 0.73*** | 0.57*** | 0.56*** | 0.58*** | 0.77*** | 0.73*** | 0.52** | −0.75*** | 0.75*** |
Mn | 0.75*** | 0.51** | 0.69*** | 0.66*** | 0.58*** | 0.68*** | 0.75*** | 0.65*** | 0.66*** | −0.85*** | 0.72*** |
Ni | 0.55*** | 0.55*** | 0.59*** | 0.50** | 0.47** | 0.65*** | 0.69*** | 0.45** | 0.53** | −0.79*** | 0.54** |
Pb | 0.49** | 0.54** | 0.68*** | 0.55** | 0.68*** | 0.69*** | 0.68*** | 0.51** | 0.61*** | −0.83*** | 0.59*** |
Zn | 0.73*** | 0.56*** | 0.67*** | 0.67*** | 0.59*** | 0.65*** | 0.78*** | 0.64*** | 0.67*** | −0.83*** | 0.71*** |
Stems | |||||||||||
Al | 0.50** | 0.32 | 0.40* | 0.56*** | 0.35* | 0.42* | 0.53** | 0.47** | 0.64*** | −0.73*** | 0.50** |
Co | 0.57*** | 0.35* | 0.55** | 0.52** | 0.39* | 0.55** | 0.57*** | 0.52** | 0.61*** | −0.78*** | 0.57*** |
Cr | 0.79*** | 0.44** | 0.36* | 0.39* | 0.27 | 0.19 | 0.61*** | 0.49** | 0.31 | −0.63*** | 0.43** |
Cu | 0.68*** | 0.50** | 0.68*** | 0.68*** | 0.53** | 0.67*** | 0.73*** | 0.67*** | 0.65*** | −0.87*** | 0.66*** |
Fe | 0.45** | 0.22 | 0.34* | 0.26 | 0.07 | 0.18 | 0.32 | 0.59*** | 0.10 | −0.49** | 0.63*** |
Mn | 0.81*** | 0.53** | 0.61*** | 0.71*** | 0.46** | 0.58*** | 0.78*** | 0.75*** | 0.66*** | −0.88*** | 0.69*** |
Ni | 0.53** | 0.33 | 0.41* | 0.58*** | 0.37* | 0.43** | 0.55** | 0.49** | 0.65*** | −0.75*** | 0.51** |
Pb | 0.52** | 0.33* | 0.40* | 0.58*** | 0.35* | 0.43** | 0.55** | 0.48** | 0.64*** | −0.74*** | 0.50** |
Zn | 0.68*** | 0.45** | 0.77*** | 0.57*** | 0.58*** | 0.67*** | 0.678*** | 0.66*** | 0.60*** | −0.82*** | 0.72*** |
Leaves | |||||||||||
Al | 0.47** | 0.29 | 0.53** | 0.34* | 0.54** | 0.46** | 0.46** | 0.32 | 0.48** | −0.59*** | 0.52** |
Co | 0.68*** | 0.54** | 0.42* | 0.53** | 0.45** | 0.39* | 0.66*** | 0.66*** | 0.27 | −0.61*** | 0.78*** |
Cr | 0.61*** | 0.63*** | 0.62*** | 0.57*** | 0.50** | 0.45** | 0.75*** | 0.62*** | 0.50** | −0.73*** | 0.63*** |
Cu | 0.73*** | 0.49** | 0.56*** | 0.67*** | 0.51* | 0.58*** | 0.72*** | 0.58*** | 0.57*** | −0.81*** | 0.67*** |
Fe | 0.58*** | 0.60*** | 0.57*** | 0.60*** | 0.47** | 0.54** | 0.71*** | 0.48** | 0.43** | −0.74*** | 0.59*** |
Mn | 0.64*** | 0.55** | 0.69*** | 0.62*** | 0.57*** | 0.67*** | 0.73*** | 0.60*** | 0.59*** | −0.89*** | 0.68*** |
Ni | 0.75*** | 0.45** | 0.56*** | 0.69*** | 0.48** | 0.50** | 0.72*** | 0.63*** | 0.71*** | −0.83*** | 0.51** |
Pb | 0.54** | 0.20 | 0.60*** | 0.50** | 0.53** | 0.70*** | 0.44** | 0.35* | 0.50** | −0.75*** | 0.53** |
Zn | 0.80*** | 0.58*** | 0.45** | 0.70*** | 0.38* | 0.46** | 0.79*** | 0.69*** | 0.55** | −0.86*** | 0.63*** |
Fruits | |||||||||||
Al | 0.66*** | 0.48** | 0.32 | 0.73*** | 0.41* | 0.42* | 0.68*** | 0.41* | 0.53** | −0.70*** | 0.33* |
Co | 0.55** | 0.28 | 0.50** | 0.53** | 0.29 | 0.62*** | 0.54** | 0.41* | 0.68*** | −0.69*** | 0.39* |
Cr | 0.70*** | 0.55*** | 0.29 | 0.71*** | 0.22 | 0.24 | 0.71*** | 0.73*** | 0.45** | −0.47** | 0.43* |
Cu | 0.54** | 0.50** | 0.53** | 0.63*** | 0.58*** | 0.59*** | 0.67*** | 0.50** | 0.61*** | −0.79*** | 0.62*** |
Fe | 0.76*** | 0.59*** | 0.35* | 0.83*** | 0.39* | 0.33* | 0.79*** | 0.62*** | 0.57*** | −0.60*** | 0.40* |
Mn | 0.66*** | 0.42* | 0.45** | 0.65*** | 0.45** | 0.59*** | 0.66*** | 0.63*** | 0.65*** | −0.82*** | 0.67*** |
Ni | 0.81*** | 0.50** | 0.44** | 0.78*** | 0.36* | 0.49** | 0.76*** | 0.75*** | 0.64*** | −0.86*** | 0.61*** |
Pb | 0.93*** | 0.53** | 0.47** | 0.73*** | 0.35* | 0.47** | 0.81*** | 0.72*** | 0.61*** | −0.79*** | 0.55** |
Zn | 0.55** | 0.40* | 0.48** | 0.49** | 0.36* | 0.52** | 0.58*** | 0.35* | 0.55** | −0.72*** | 0.42* |
*P < 0.05, **P < 0.01, ***P < 0.001.