Table 1.
Differences in drought stress among the heteromorphic leaves.
| Groups | Midday leaf water potential (MPa) | MDA content (μg·g-1) | Proline content (μg·g-1) | Soluble sugar content (μg·g-1) |
|---|---|---|---|---|
| SLL | -1.48 ± 0.26a | 6.14 ± 0.42c | 21.37 ± 2.97c | 43.62 ± 4.50b |
| MLL | -1.25 ± 0.24a | 5.93 ± 2.41c | 21.63 ± 14.99c | 42.70 ± 7.00b |
| LLL | -1.31 ± 0.10a | 5.53 ± 1.81c | 38.01 ± 6.93bc | 37.82 ± 9.48b |
| MOL | -1.53 ± 0.24a | 9.39 ± 0.80b | 50.50 ± 6.25ab | 69.57 ± 1.06a |
| LOL | -1.64 ± 0.21a | 10.38 ± 0.94b | 40.59 ± 14.18b | 75.9 ± 10.42a |
| LBL | -2.10 ± 0.12b | 13.62 ± 0.44a | 65.54 ± 4.33a | 76.8 ± 10.42a |
| F | 6.56 | 16.87 | 9.67 | 21.19 |
| p-values | P<0.05 | P<0.01 | P<0.01 | P<0.01 |
SLL, MLL, LLL are lanceolate leaves distributed in the whole crown of the small trees, the bottom of the medium and large tree crowns, respectively. MOL and LOL are ovate leaves grown in the top of the medium tree crowns and the intermediate of the large tree crowns, respectively. LBL is the broad-ovate leaves only located at the top of the large tree crowns. F and p-values are the results of One-way ANOVA. Different letters on the back of the related variables indicate the significant differences among heteromorphic leaves, while the same letters show the insignificant difference. Values are represented as mean ± SD.