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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