Table 2.
Dark [CO2] (µmol mol–1) | Net photosynthesis (mg dry mass per leaflet) | Respiration | Change in mass | Translocation |
220 | 411 ± 16 | 36 ± 2 | 47 ± 3 | 328 ± 13 |
370 | 388 ± 14 | 33 ± 3 | 56 ± 4 | 299 ± 11 |
700 | 376 ± 13 | 30 ± 3 | 73 ± 5 | 273 ± 9 |
1400 | 361 ± 9 | 27 ± 2 | 79 ± 3 | 255 ± 6 |
Values represent overall means (± s.e.) for three replicates, each consisting of four to six plants, except for the 1400 µmol mol–1 CO2 treatment when there were six replicates.