| 处理浓度 | 根长(cm) | 株高(cm) | 根冠比 | 根系耐性指数 |
| CK | 7.86 ± 0.1 | 6.74 ± 0.14 | 1.17 ± 0.02 | 1 |
| 200 µMCu | 8.19 ± 0.15 | 5.28 ± 0.17 | 1.55 ± 0.07 | 1.041561 |
−ET | 300 µMCu | 7.36 ± 0.32 | 5.39 ± 0.21 | 1.37 ± 0.01 | 0.936811 |
| 400 µMCu | 6.46 ± 0.24 | 5.37 ± 0.12 | 1.21 ± 0.06 | 0.822307 |
| 600 µMCu | 5.52 ± 0.26 | 4.83 ± 0.2 | 1.15 ± 0.08 | 0.702714 |
| 800 µMCu | 5.78 ± 0.14 | 4.46 ± 0.11 | 1.3 ± 0.03 | 0.735369 |
| 50 µMET | 5.58 ± 0.12 | 7.09 ± 0.23 | 1.27 ± 0.06 | 1 |
| 200 µMCu + 50 µMET | 5.26 ± 0.19 | 6.97 ± 0.35 | 1.32 ± 0.03 | 0.98 |
+ET | 300 µMCu + 50 µMET | 5.41 ± 0.21 | 7.04 ± 0.1 | 1.3 ± 0.07 | 0.99 |
| 400 µMCu + 50 µMET | 5.83 ± 0.48 | 7.25 ± 0.09 | 1.25 ± 0.08 | 1.02 |
| 600 µMCu + 50 µMET | 5.35 ± 0.09 | 6.54 ± 0.19 | 1.22 ± 0.02 | 0.92 |
| 800 µMCu + 50 µMET | 5.55 ± 0.35 | 6.96 ± 0.15 | 1.26 ± 0.05 | 0.98 |