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The stomatal density of leaf surfaces in CK, TH-0%, and TH-75% at 0, 4, 8, and 12 h.
| Groups | Time/(h) | Stomata density/(pcs/mm2) |
| CK | 0 | 172 ± 14a |
| 4 | 178 ± 9a | |
| 8 | 169 ± 9a | |
| 12 | 175 ± 5a | |
| TH-0% | 0 | 178 ± 24a |
| 4 | 175 ± 14a | |
| 8 | 169 ± 24a | |
| 12 | 199 ± 14b | |
| TH-75% | 0 | 175 ± 5a |
| 4 | 172 ± 10a | |
| 8 | 178 ± 9a | |
| 12 | 169 ± 24a |
Different letters between different time intervals for each treatment indicate significant differences (P < 0.05), and the same letters indicate no significant differences (P ≥ 0.05).
