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Table 2 Shoot biomass, root biomass, shoot/root, total biomass, root length, grain yield and WUE-yield of the soybean plant when harvesting. Different letters within each treatment indicate significant differences for Fisher LSD test

From: Biochar addition alleviate the negative effects of drought and salinity stress on soybean productivity and water use efficiency

 

Shoot biomass

Root biomass

Shoot/root

Total biomass

Root length

Grain yield

WUE-yield

 

g pot−1

g pot−1

 

g pot−1

cm

g pot−1

g L−1

Drought stress (D)

 D-C

19.80 ± 1.21 a

3.24 ± 0.25 a

6.35 ± 0.30 a

23.04 ± 1.40 a

28.08 ± 1.72 b

10.46 ± 0.64 a

0.51 ± 0.03 b

 D-L

14.08 ± 0.85 b

3.08 ± 0.18 a

4.66 ± 0.21 b

17.17 ± 0.98 b

34.17 ± 1.74 a

8.61 ± 0.61 b

0.65 ± 0.05 a

 D-H

10.23 ± 0.74 c

2.13 ± 0.15 b

4.96 ± 0.29 b

12.36 ± 0.86 c

31.04 ± 2.37 ab

6.00 ± 0.29 c

0.64 ± 0.03 a

Salinity stress (S)

 Control

15.56 ± 0.74 a

3.21 ± 0.12 a

4.90 ± 0.18 b

18.76 ± 0.82 a

34.88 ± 1.83 a

9.34 ± 0.46 a

0.69 ± 0.03 a

 Salinity

13.86 ± 1.22 a

2.42 ± 0.21 b

5.75 ± 0.29 a

16.28 ± 1.39 b

27.31 ± 1.12 b

7.37 ± 0.55 b

0.52 ± 0.03 b

Biochar (B)

 B0

12.33 ± 0.82 b

2.43 ± 0.17 b

5.20 ± 0.27 a

14.76 ± 0.96 b

31.80 ± 2.01 a

7.89 ± 0.48 b

0.57 ± 0.04 b

 B1

14.09 ± 1.03 b

2.82 ± 0.19 ab

5.09 ± 0.29 a

16.91 ± 1.16 b

33.17 ± 2.29 a

8.13 ± 0.65 ab

0.59 ± 0.04 b

 B2

17.70 ± 1.53 a

3.20 ± 0.28 a

5.68 ± 0.35 a

20.90 ± 1.74 a

28.31 ± 1.60 a

9.05 ± 0.78 a

0.66 ± 0.03 a

ANOVA

 D

< 0.001

< 0.001

< 0.01

< 0.001

< 0.05

< 0.001

< 0.001

 S

0.051

< 0.001

< 0.01

< 0.05

< 0.001

< 0.001

< 0.001

 B

< 0.001

< 0.01

0.438

< 0.001

0.090

< 0.05

< 0.05

 D × S

0.059

< 0.05

0.820

< 0.05

< 0.05

< 0.001

< 0.001

 D × B

< 0.05

0.401

0.534

< 0.05

< 0.05

< 0.001

< 0.001

 S × B

< 0.05

< 0.05

0.853

< 0.05

0.714

< 0.01

< 0.01

 D × S × B

0.682

0.499

0.716

0.633

< 0.05

0.160

0.160