Table 3. Soil moisture, water potentials (Ψ), CO2 assimilation and stomatal conductance of sorghum plants under well-watered (WW, WWM) and water deficit (WD, WDM) conditions.
These values represent the means ± SD of four biological samples for each treatment. The same letter in the columns represents no significant differences among treatments according to Tukey’s test (p ≤ 0.05). * WW and WD represent well-watered and water deficit nonmycorrhizal plants, while **WWM and WDM correspond to well-watered and water deficit mycorrhizal plants, respectively.
| Treatments |
Soil moisture (%) |
Ψ soil (MPa) |
Ψ leaves (MPa) |
CO2assimilation (µmol m−2s−1) |
Stomatal conductance (mmol m−2s−1) |
|---|---|---|---|---|---|
| *WW | 23.0 ± 2.60 a | −0.20 ± 0.02 a | −0.27 ± 0.014 b | 28.70 ± 1.16 b | 193 ± 1.16 a |
| **WWM | 19.0 ± 1.83 b | −0.30 ± 0.07 a | −0.17 ± 0.004 a | 33.85 ± 2.3 a | 125 ± 5.23 b |
| *WD | 4.8 ± 0.28 c | −0.73 ± 0.38 b | −0.42 ± 0.016 c | 16.88 ± 1.8ubrk c | 89 ± 4.24 d |
| **WDM | 4.0 ± 0.15 c | −0.81 ± 0.03 b | −0.28 ± 0.008 b | 26.70 ± 0.79 b | 112 ± 3.60 c |