Table 3.
Photosynthetic characters of G. parvifolium and three species of land plant representatives measured in the wild. Data are means ± standard deviation. Different letters in same column indicate significant difference (p < 0.05).
| Species | Pn (μmol m-2 s-1 CO2) | Gs (mmol m-2s-1) | Ci (μmol mol-1) | Tr (g m-2 h-1) | VpdL (kPa) | Rc (%) |
|---|---|---|---|---|---|---|
| Gnetum parvifolium | 1.30 ± 0.33a | 0.01 ± 0.00a | 164.64 ± 33.86a | 0.20 ± 0.39a | 2.09 ± 0.06a | 57.86 ± 6.83a |
| Lonicera japonica | 8.83 ± 0.24c | 0.08 ± 0.01b | 223.01 ± 15.79c | 1.39 ± 0.04c | 1.63 ± 0.08b | 49.96 ± 4.11c |
| Pteris vittata | 5.80 ± 0.41b | 0.07 ± 0.00b | 360.26 ± 11.08d | 1.05 ± 0.02b | 1.52 ± 0.04b | 34.81 ± 4.92b |
| Styrax confusus | 4.86 ± 0.08b | 0.11 ± 0.00b | 319.34 ± 2.68b | 1.87 ± 0.1b | 1.69 ± 0.04b | 33.17 ± 1.82b |
Abbreviations of photosynthetic characters are as follows: Pn, net photosynthetic rate; Gs, stomatal conductance; Ci, intercellular CO2 concentration; Tr, transpiration rate; VpdL, leaf water deficit; Rc, relative chlorophyll content.