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Table 1 Leaf relative water content (RWC, %), stomatal conductance (gs), photosynthetic rate (Pn), and transpiration rate (E) at the flowering stage, and total water consumption, water use efficiency for grain yield (WUEG), and water use efficiency for aboveground biomass (WUEAGB) at the maturity stage of four wheat varieties having different ploidy level subjected to three drought treatments (WW, FS and PS)

From: Partial and full root-zone drought stresses account for differentiate root-sourced signal and yield formation in primitive wheat

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
  1. Values are mean ± SE (n = 3; n = 6 for gas exchange characteristics). Means within column having same letter are statistically similar at P < 0.05 according to Duncan’s multiple range tests. *, **, *** indicate significant at 0.05, 0.01, and 0.001, respectively