Table III
Net CO2 assimilation at saturating Ci and light (Amax), maximum carboxylation velocity of Rubisco (Vc,max), maximum potential rate of electron transport contributing to RuBP regeneration (Jmax) and stomatal limitation (ls) from A/Ci curves for the different treatments (control, C; winter resprouts, RW; summer resprouts, RS) and season (winter, summer). In summer, the time of day was also considered. Each value represents the mean ±SE of ten replicates. Significant differences across rows or columns (p ≤ 0.05) are indicated by different letters (treatment (a, b, c), season (A, B) and time of the day (α,β,γ)).
| Treatments | ||||||
|---|---|---|---|---|---|---|
| Season | Time of the day |
|
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| C | RW | RS | ||||
| Amax (μmol m−2 s−1) | Winter | Midday | 6.6 ± 0.5aB | 7.2 ± 0.3aB | — | |
| Morning | 2.7 ± 0.3aβ | 6.1 ± 0.6bβ | 6.5 ± 0.9bβ | |||
| Summer | Midday | 1.1 ± 0.2aαA | 3.4 ± 0.5bαA | 4.8 ± 1.3bα | ||
| Evening | 1.1 ± 0.3aα | 3.6 ± 0.6bα | 3.4 ± 0.2bα | |||
|
|
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| Vc,max (μmol m−2 s−1) | Winter | Midday | 30.7 ± 2.8aB | 31.8 ± 1.6aA | — | |
| Morning | 11.8 ± 2.1aα | 26.6 ± 3.5bα | 27.3 ± 4.3bα | |||
| Summer | Midday | 13.5 ± 4.0aαA | 29.9 ± 2.3bαA | 25.1 ± 5.7bα | ||
| Evening | 11.8 ± 2.4aα | 27.8 ± 6.3bα | 23.7 ± 3.0bα | |||
|
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| Jmax (μmol m−2 s−1) | Winter | Midday | 63.4 ± 4.9aB | 66.8 ± 2.8aB | — | |
| Morning | 20.0 ± 2.9aα | 42.5 ± 4.8bα | 46.2 ± 6.7bα | |||
| Summer | Midday | 17.1 ± 4.1aαA | 34.9 ± 4.3bαA | 40.0 ± 9.1bα | ||
| Evening | 16.1 ± 3.3aα | 37.8 ± 8.2bα | 32.2 ± 4.5bα | |||
|
|
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| ls (%) | Winter | Midday | 26.2 ± 1.5bA | 21.9 ± 1.1aA | — | |
| Morning | 58.9 ± 6.3bα | 39.9 ± 2.5aα | 43.9 ± 1.5aα | |||
| Summer | Midday | 51.6 ± 3.9bαB | 37.5 ± 3.0aαB | 42.2 ± 2.1aα | ||
| Evening | 51.5 ± 3.8bα | 41.8 ± 1.0aα | 37.1 ± 4.3aα | |||