Table 1.
The growth characteristics of sassafras seedlings under different levels of cadmium treatment.
| Treat-ment | Net growth in plant height/cm | Net growth in ground diameter/cm | Leaf biomass/g | Branch biomass/g | Root biomass/g | Total biomass/g |
|---|---|---|---|---|---|---|
| CT | 36.19 ± 3.58a | 4.12 ± 0.83a | 25.94 ± 0.77a | 45.46 ± 1.23a | 48.45 ± 1.15a | 119.85 ± 2.73a |
| Cd5 | 24.89 ± 0.51a | 3.38 ± 0.92a | 22.79 ± 1.50a | 44.22 ± 0.96a | 39.64 ± 1.25b | 106.65 ± 1.42ab |
| Cd20 | 33.03 ± 6.49a | 7.11 ± 1.73a | 21.01 ± 9.20a | 40.96 ± 1.28b | 35.20 ± 2.80b | 97.17 ± 7.76ab |
| Cd50 | 29.2 ± 3.15a | 6.58 ± 1.17a | 20.58 ± 2.03a | 38.84 ± 0.09b | 35.09 ± 1.44b | 94.51 ± 3.26bc |
| Cd100 | 23.65 ± 3.13a | 6.71 ± 1.04a | 19.39 ± 1.54a | 32.82 ± 1.00c | 34.42 ± 1.44b | 86.63 ± 1.32c |
Different lowercase letters in the same column indicate significant differences between different cadmium concentration treatments (P < 0.05).