Treatments

CAT

(U∙mg⁻¹ protein min⁻¹)

POD

(U∙mg⁻¹ protein min⁻¹)

APX

(µmol ASA mg⁻¹ protein min⁻¹)

SOD

(U∙mg⁻¹ protein min⁻¹)

Control

Al 400 mg∙kg soil⁻¹

Al 400 mg∙kg soil⁻¹ + 0.5 μMEBL

Al 400 mg∙kg soil⁻¹ + 1 μMEBL

Al 400 mg∙kg soil⁻¹ + 2 μMEBL

Al 600 mg∙kg soil⁻¹

Al 600 mg∙kg soil⁻¹ + 0.5 μMEBL

Al 600 mg∙kg soil⁻¹ + 1 μMEBL

Al 600 mg∙kg soil⁻¹ + 2 μMEBL

Al 800 mg∙kg soil⁻¹

Al 800 mg∙kg soil⁻¹ + 0.5 μMEBL

Al 800 mg∙kg soil⁻¹ + 1 μMEBL

Al 800 mg∙kg soil⁻¹ + 2 μMEBL

1.81 ± 0.60

1.88 ± 0.31

1.92 ± 0.52

1.99 ± 0.64^*

2.13 ± 0.69^*

2.09 ± 0.28

2.32 ± 0.53^*

2.69 ± 0.62^*

2.58 ± 0.68

2.41 ± 0.21

2.48 ± 0.41^*

2.83 ± 0.49^*

3.01 ± 0.86^*

0.048 ± 0.017

0.041 ± 0.006

0.043 ± 0.017

0.046 ± 0.008

0.048 ± 0.016

0.038 ± 0.012

0.039 ± 0.011

0.041 ± 0.009

0.043 ± 0.012

0.032 ± 0.011

0.035 ± 0.007

0.039 ± 0.009

0.045 ± 0.014^&

4.81 ± 0.96

4.93 ± 0.99

4.98 ± 0.93

5.12 ± 1.04

5.45 ± 1.08^*@

5.18 ± 1.02

5.37 ± 1.07

5.46 ± 1.08

5.49 ± 1.03

5.44 ± 1.00

5.59 ± 1.01^*

5.82 ± 1.04^*

6.01 ± 1.17^*

1.45 ± 0.21

1.61 ± 0.33

1.85 ± 0.51

1.92 ± 0.62

2.08 ± 0.56^@

1.88 ± 0.41

1.97 ± 0.71

2.09 ± 0.63

2.51 ± 0.78

1.93 ± 0.46

1.95 ± 0.81

2.41 ± 0.94

2.99 ± 0.98^*