Table 1.
Effects of different concentrations of cadmium on growth parameters and chlorophyll content in Lonicera japonica Thunb. after 90 days.
| Cd concentration (mg kg−1) | Height (cm) | Dry weight (g) | Leaf area (cm2) | Chlorophyll a (mg g−1 FW) | Chlorophyll b (mg g−1 FW) | Total chlorophyll (mg g−1 FW) |
|---|---|---|---|---|---|---|
| 0 | 44.67 ± 0.58 b | 6.74 ± 0.10 d | 13.20 ± 0.13 b | 6.50 ± 0.05 d | 2.45 ± 0.12 d | 8.95 ± 0.13 d |
| 10 | 46.67 ± 0.58 a | 8.69 ± 0.11 b | 14.18 ± 0.60 a | 7.69 ± 0.12 c | 3.27 ± 0.41 ab | 10.95 ± 0.29 c |
| 30 | 47.33 ± 1.15 a | 11.31 ± 0.50 a | 14.63 ± 0.23 a | 10.15 ± 0.02 a | 3.17 ± 0.16 abc | 13.32 ± 0.19 a |
| 80 | 43.83 ± 0.76 b | 7.09 ± 0.18 c | 13.13 ± 0.34 b | 8.56 ± 0.17 b | 2.75 ± 0.11 cd | 11.32 ± 0.15 b |
| 150 | 41.33 ± 1.53 c | 6.54 ± 0.14 d | 11.32 ± 0.14 c | 5.51 ± 0.15 e | 3.50 ± 0.34 a | 9.01 ± 0.18 d |
| 200 | 40.83 ± 0.29 c | 5.79 ± 0.18 e | 11.25 ± 0.23 c | 5.43 ± 0.12 e | 2.94 ± 0.07 bc | 8.37 ± 0.18 e |
Different letters indicate a significant difference (P < 0.05) based on Duncan’s multiple range test at 5% level. Values are the mean ± SD (n = 3).