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Irrigation and 13CO2 labelling schemes of the experiment. *Note: Tree DEMON measurements were performed until 1300 h, whereas irrigation started after 1300 h. Two replications with each two trees per treatment and control groups were performed.
| Day* (1300–1300 h) | Irrigation (mL day−1) of control trees (N = 4) | Irrigation (mL day−1) of treated trees (N = 4) | 13CO2 labelling |
|---|---|---|---|
| 1–3 | 300 (Days 1 and 2) | 300 (Days 1 and 2) | Day 2 |
| 3–13 | 300 | 0 | Day 8 |
| 13 | 300 | 1200 | |
| 14 | 300 | 600 | |
| 15–16 | 300 | 300 | Day 15 |
