Table 1.
Overview of the design of the four experiments presented
| Experiment no. | Species (ecotype) | Treatment (PPFD μmol m–2 s–1) | Sub-treatment | Ca (μmol mol–1) | Leaf age at harvest (d) |
|---|---|---|---|---|---|
| 1 | Helianthus annuus | HL (700) [↓] | Control | 390 | 56 |
| +PEG [↓] | |||||
| +ABA [↓] | |||||
| LL (70) [↑] | Control | ||||
| +PEG [↓] | |||||
| +ABA [↓] | |||||
| Arabidopsis thaliana (Columbia, C24) | HL (200) [↓] | 390 | 18 | ||
| LL (80) [↑] | |||||
| Lepidium sativum | (500) | Control | 390 | 14 | |
| +ABA [↓] | |||||
| Fagus sylvatica | HL (1301) [↓] | Season, leaf age | 390 | 30–180 (18 harvests) | |
| LL (33) [↑] | |||||
| 2 | Lepidium sativum | Artificial air [↓] | LH [↓] | 180 [↓] | 7, 14, 21 |
| 400 | 7, 14 | ||||
| 800 [↑] | 7, 14 | ||||
| HH [↑] | 180 [↓] | 7, 14, 21 | |||
| 400 | 7, 14 | ||||
| 800 [↑] | 7, 14 | ||||
| RP [↓] | 180 [↓] | 7, 14, 21 | |||
| 400 | 7, 14 | ||||
| 800 [↑] | 7, 14 | ||||
| Helox [↑] | LH [↓] | 180 [↓] | 7, 14, 21 | ||
| 400 | 7, 14 | ||||
| 800 [↑] | 7, 14 | ||||
| HH [↑] | 180 [↓] | 7, 14, 21 | |||
| 400 | 7, 14 | ||||
| 800 [↑] | 7, 14 | ||||
| RP [↓] | 180 [↓] | 7, 14, 21 | |||
| 400 | 7, 14 | ||||
| 800 [↑] | 7, 14 | ||||
| 3 | Lepidium sativum | (100) [↑] | 390 | 21 | |
| (170) [↑] | |||||
| (240) [↑] | |||||
| (310) [↑] | |||||
| (380) control | |||||
| (450) [↓] | |||||
| (520) [↓] | |||||
| (590) [↓] | |||||
| 4 | Arabidopsis thaliana (Columbia, C24) | HL (250) [↓] | 400 | 42 | |
| LL (25) [↑] |
HL, high light; LL, low light; HH, high humidity; LH, low humidity; RP, reduced pressure; PPFD, photosynthetic photon flux density during growth.
Expected effect of the treatment and sub-treatment on Ci: increase [↑] or decrease [↓] with respect to the counterpart treatment or control.