Table 6. Average Pb concentrations (mg kg−1) in dry plant tissues of S. integra exposed to various Pb treatments for 14 days.
| Varieties | ||||
| Plant tissue | Pb µM | Yizhibi | Weishanhu | Dahongtou |
| Leaves | 0 | ND | ND | ND |
| 47 | 29.3±11.6b | 27.7±5.4a | 20.0±8.4b | |
| 123 | 44.9±7.5a | 36.9±9.4a | 89.3±19.6a | |
| 178 | 15.4±4.7c | 14.3±3.6b | 16.7±5.8bc | |
| 196 | 13.7±2.7c | 9.9±3.8b | 8.6±3.8bc | |
| New shoots | 0 | ND | ND | ND |
| 47 | 29.8±9.3a | 33.4±4.7a | 36.1±10.4a | |
| 123 | 17.2±1.7a | 14.6±2.9b | 27.4±10.5a | |
| 178 | 19.7±9.8a | 43.0±7.2a | 34.1±1.1a | |
| 196 | 25.9±8.5a | 34.1±13.1a | 49.4±23.5a | |
| Wood | 0 | ND | ND | ND |
| 47 | 244.±82.4c | 216.0±37.5c | 328.0±118.3c | |
| 123 | 548.3±147.8b | 470.3±49.7b | 574.0±114.2b | |
| 178 | 765.0±147.5a | 655.0±117.9a | 788.7±135.1ab | |
| 196 | 865.0±69.1a | 611.0±64.6a | 930.3±199.5a | |
| Root | 0 | ND | ND | ND |
| 47 | 9,632.3±2,268.6b | 6,799.7±1,918.1c | 8,318.7±1,827.6c | |
| 123 | 18,271.0±3,334.5a | 19,629.0±1,799.5a | 13,999.0±9,64.2b | |
| 178 | 18,074.7±4,816.4a | 15,340.7±3,954.3ab | 23,998.0±2,760.0a | |
| 196 | 21,471.0±1,274.9a | 14,391.7±3,738.0b | 24,597.0±1,855.1a | |
Values are mean ± S.D. (n = 6), and data with different letters in the same column indicate a significant difference at P<0.05 according to Fisher's LSD test.