Table I. Embolism is not pronounced in grasses.
Summary of hydraulic parameters for grasses from the Swiss collections, including mean leaf water potential during three time points in spring time (mean Psimidday during spring time), its corresponding native levels of embolism (PLCmidday, %), the minimum leaf water potential measured throughout the growing season (=Psimin), and its corresponding PLC. Values are means ±1 se for n = 6. More detailed information throughout the growing season is provided in Supplemental Table S4.
| Species | P50 (MPa) | Mean Psimidday in Spring Time (MPa) | Mean PLCmidday in Spring Time (%) | Psimin (MPa) | PLC at Psimin (%) |
|---|---|---|---|---|---|
| Dactylis glomerata | −3.49 | −1.47 ± 0.06 | 14.56 ± 0.67 | −2.06 ± 0.14 | 22.30 ± 2.22 |
| Lolium perenne | −3.21 | −1.37 ± 0.03 | 15.80 ± 0.35 | −1.81 ± 0.05 | 21.75 ± 0.73 |
| Phleum pratense | −3.84 | −1.24 ± 0.12 | 5.51 ± 0.86 | −1.90 ± 0.10 | 10.49 ± 1.05 |
| Poa pratensis | −3.65 | Species not yet growing | Species not yet growing | −2.06 ± 0.15 | 11.06 ± 2.18 |
| Agrostis capillaris | −4.50 | −2.05 ± 0.15 | 8.98 ± 1.20 | −2.31 ± 0.14 | 11.06 ± 1.20 |