Table 3.
Physiological characterization of the several wild beets and of the sugar beet at the onset of the stress assays (day 0).
| Photosynthetic rate (μ mol CO2 m-2 s-1) |
Leaf stomatal conductance (mol H2O m-2s-1) |
Internal CO2 concentration (μmol CO2 mol-1) |
Leaf temperature (°C) |
Leaf vapor pressure deficit, Vpdl (kPa) | Potevapotranspiration rate (ml H2O lost g-1 soil) |
|
|---|---|---|---|---|---|---|
| OEI | 11.3 (±0.3) a | 0.26 (±0.01) a | 332 (±1) a | 23.9 (±0.3) a | 1.5 (±0.03) a | 0.035 (±0.004) a |
| SB | 9.2 (±0.3) b | 0.19 (±0.03) a | 290 (±26) a | 23.6 (±0.1) a | 1.5 (±0.06) a | 0.052 (±0.004) b |
| CMP | 11.4 (±0.3) a | 0.34 (±0.03) b | 383 (±5) b | 22.6 (±0.1) b | 1.1 (±0.03) b | 0.047 (±0.003) b |
| VMT | 9.9 (±0.3) c | 0.45 (±0.04) c | 325 (±1) a | 22.7 (±0.1) b | 0.9 (±0.04) c | 0.033 (±0.003) a |
Duncan’s post hoc test after one-way ANOVA (p < 0.05) was performed in order to: compare treatments within each genotype (a, b, c). a, b, c, statistically significant differences according to the Duncan test (p < 0.05).