Table 4.
Species summary statistics of hydraulic parameters measured in both native and field-grown H. anomalus and H. deserticola
| Variables |
H. anomalus |
H. deserticola |
df | P | ||
| Mean | SE | Mean | SE | |||
| Ψpd (MPa) | –0.97 | 0.052 | –0.54 | 0.06 | 1,52 | <0.0001 |
| Ψmd (MPa) | –1.90 | 0.05 | –1.37 | 0.06 | 1,52 | <0.0001 |
| Stem Ψ (MPa) | –1.44 | 0.05 | –0.96 | 0.06 | 1,52 | <0.0001 |
| E (mmol m−2 s−1) | 10.06 | 1.170 | 24.27 | 2.428 | 1,48 | <0.0001 |
| kL (mmol m−2 s−1 MPa−1) | 11.33 | 1.560 | 30.36 | 2.311 | 1,48 | <0.0001 |
| Native embolism (%) | 24.24 | 3.69 | 10.16 | 3.87 | 1,52 | <0.01 |
| P50 (MPa) | –2.16 | 0.10 | –2.67 | 0.10 | 1,52 | <0.01 |
| P75 (MPa) | –2.98 | 0.09 | –3.17 | 0.10 | 1,52 | ns |
| Ψ margin (MPa) | –1.08 | 0.09 | –1.79 | 0.11 | 1,52 | <0.0001 |
Several H. deserticola individuals had missing data for E and kL (see Fig. 3). Means and standard errors are from ANOVAs. Significant differences between species were calculated with a MANOVA testing for the effect of species for all variables.