Treatment

Root length

(cm)

Root square area (cm2)

Root volume

(cm3)

Root FW (mg)

Root DW (mg)

No. of

root nodules

Control

Al 400 mg∙kg soil1

Al 400 mg∙kg soil1 + 0.5 μMEBL

Al 400 mg∙kg soil1 + 1 μMEBL

Al 400 mg∙kg soil1 + 2 μMEBL

Al 600 mg∙kg soil1

Al 600 mg∙kg soil1 + 0.5 μMEBL

Al 600 mg∙kg soil1 + 1 μMEBL

Al 600 mg∙kg soil1 + 2 μMEBL

Al 800 mg∙kg soil1

Al 800 mg∙kg soil1 + 0.5 μMEBL

Al 800 mg∙kg soil1 + 1 μMEBL

Al 800 mg∙kg soil1 + 2 μMEBL

12.7 ± 0.9

11.5 ± 0.6

11.9 ± 0.8@

12.2 ± 0.6*@

12.6 ± 0.5*@

10.9 ± 0.6

10.9 ± 0.9

11.4 ± 0.5*†

12.6 ± 0.7*†

10.3 ± 0.8

10.7 ± 0.3*

12.1 ± 0.8*&

12.9 ± 0.7*&

18.6 ± 1.2

11.5 ± 1.1

12.4 ± 1.0*

13.6 ± 1.0*@

14.6 ± 1.2*@

9.60 ± 1.1

10.9 ± 1.3

12.5 ± 1.2*†

14.6 ± 1.2*†

8.61 ± 1.2

11.8 ± 1.2*

13.6 ± 1.3*&

14.1 ± 2.1*&

0.39 ± 0.19

0.29 ± 0.12

0.35 ± 0.13*

0.42 ± 0.15*@

0.55 ± 0.17*@

0.23 ± 0.14*

0.32 ± 0.11*†

0.36 ± 0.10*†

0.37 ± 0.14

0.20 ± 0.09

0.21 ± 0.10&

0.27 ± 0.13&

0.34 ± 0.12*&

14.1 ± 1.1

13.6 ± 1.2

13.7 ± 1.1@

14.1 ± 1.5*@

14.3 ± 1.6*

12.1 ± 1.0

12.8 ± 1.1

13.4 ± 1.5*†

13.9 ± 1.6*†

10.8 ± 0.9

11.6 ± 0.9*&

12.9 ± 1.5*&

14.2 ± 1.9*

1.51 ± 0.11

1.42 ± 0.14

1.43 ± 0.17@

1.48 ± 0.24*@

1.52 ± 0.37*@

1.23 ± 0.10

1.28 ± 0.21

1.37 ± 0.45

1.49 ± 0.68*

1.04 ± 0.09

1.16 ± 0.65&

1.32 ± 0.81&

1.48 ± 0.79*

20 ± 4

17 ± 4

22 ± 2*

26 ± 4*@

28 ± 7*@

16 ± 4

22 ± 6*†

26 ± 9*

30 ± 4*

15 ± 4

23 ± 6*&

27 ± 3*&

28 ± 7*