Species | Varieties | Treatments | Leaf relative water content (%) | Stomatal conductance (mmol H2O m−2 s−1) | Photosynthetic rate (µmol CO2 m−2 s−1) | Transpiration rate (mmol H2O m−2 s−1) | Total water consumption (L/plant) | WUEG | WUEAGB |
---|---|---|---|---|---|---|---|---|---|
Diploid | MO1 | WW | 86.5 ± 2.0a | 73.86 ± 3.3c | 8.12 ± 0.4b | 4.73 ± 0.4b | 1.83 ± 0.05c | 1.14 ± 0.04b | 3.01 ± 0.10b |
FS | 82.0 ± 4.0a | 47.41 ± 5.0b | 5.49 ± 0.6a | 2.93 ± 0.1a | 1.34 ± 0.02b | 1.04 ± 0.05a | 2.55 ± 0.02a | ||
PS | 81.3 ± 2.0a | 35.01 ± 2.0a | 6.26 ± 0.2a | 2.74 ± 0. 3a | 1.12 ± 0.06a | 0.99 ± 0.04a | 2.72 ± 0.19ab | ||
MO4 | WW | 76.1 ± 3.0a | 86.11 ± 5.2c | 10.01 ± 0.4b | 4.47 ± 0.3b | 1.66 ± 0.05c | 1.18 ± 0.02b | 3.10 ± 0.13b | |
FS | 74.7 ± 2.0a | 45.30 ± 4.5b | 6.97 ± 0.2a | 2.43 ± 0.3a | 1.15 ± 0.03b | 0.98 ± 0.04a | 2.54 ± 0.05a | ||
PS | 73.5 ± 2.0a | 31.96 ± 3.0a | 6.23 ± 0.1a | 2.12 ± 0.3a | 1.03 ± 0.05a | 0.94 ± 0.09a | 2.50 ± 0.21a | ||
Tetraploid | DM22 | WW | 89.9 ± 2.0a | 153.47 ± 3.5c | 13.21 ± 0.4b | 3.39 ± 0.1b | 2.10 ± 0.01c | 1.52 ± 0.02c | 3.32 ± 0.18a |
FS | 84.0 ± 3.0a | 115.80 ± 2.7b | 10.14 ± 0.6a | 2.56 ± 0.1a | 1.24 ± 0.04b | 1.67 ± 0.06b | 3.24 ± 0.19a | ||
PS | 86.8 ± 1.0a | 66.79 ± 6.3a | 8.27 ± 0.8a | 1.80 ± 0.2c | 1.03 ± 0.01a | 1.81 ± 0.12a | 3.06 ± 0.09a | ||
DM31 | WW | 77.7 ± 5.0a | 76.95 ± 3.6c | 7.89 ± 0.5b | 4.22 ± 0.3b | 2.11 ± 0.03c | 1.28 ± 0.04c | 3.21 ± 0.03a | |
FS | 75.4 ± 4.0a | 41.87 ± 1.6b | 4.79 ± 0.4a | 1.88 ± 0.2a | 1.33 ± 0.04b | 1.54 ± 0.08b | 3.17 ± 0.11a | ||
PS | 71.7 ± 3.0a | 30.12 ± 2.2a | 4.53 ± 0.5a | 1.76 ± 0.2a | 0.99 ± 0.04a | 1.73 ± 0.09a | 3.38 ± 0.15a | ||
 | ANOVA | Variety | *** | *** | *** | *** | *** | *** | *** |
Treatment | ns | *** | *** | *** | *** | ns | * | ||
V × T | ns | *** | ns | ns | *** | *** | ns |