Table 2.
Plant physiological indicators under different CC years.
| Factors | CC0 | CC1 | CC4 | CC7 |
|---|---|---|---|---|
| Dry weight (g.pot−1) | 3.79 ± 0.09a | 2.68 ± 0.06b | 2.69 ± 0.06b | 2.54 ± 0.09b |
| Stem thick (mm) | 5.55 ± 0.15a | 5.39 ± 0.09ab | 4.91 ± 0.26b | 4.88 ± 0.22b |
| Plant height (cm) | 25.95 ± 0.45a | 25.63 ± 0.39a | 25.62 ± 0.17a | 25.37 ± 0.20a |
| Mass of root secretion (g.plant−1) | 0.0408 ± 0.01b | 0.0469 ± 0.01ab | 0.0706 ± 0.01ab | 0.0728 ± 0.01a |
Values are mean ± SE in triplicate replicates. Different lowercase letters indicate significant differences with a p < 0.05 based on the analysis of variance.