Table 7 Influence of biostimulants on H₂O₂ and MDA concentrations and GPX and CAT activities of grapevine leaves cv. ‘Yaghouti’ under WW and DS conditions

WW

CON

1.44 ± 0.12 c

1.54 ± 0.19 bc

2.37 ± 0.14 e

0.95 ± 0.05 e

AA

1.01 ± 0.11 d

1.12 ± 0.04 d

3.75 ± 0.36 d

1.30 ± 0.09 d

HA

0.98 ± 0.09 d

1.34 ± 0.16 cd

3.44 ± 0.19 d

1.16 ± 0.05 d

FA

0.91 ± 0.08 d

1.33 ± 0.12 cd

3.44 ± 0.14 d

1.22 ± 0.09 d

SE

0.79 ± 0.13 d

1.20 ± 0.07 d

3.63 ± 0.30 d

1.12 ± 0.02 de

DS

CON

2.30 ± 0.09 a

2.25 ± 0.14 a

4.57 ± 0.12 c

2.27 ± 0.05 c

AA

1.70 ± 0.22 b

1.73 ± 0.26 b

5.91 ± 0.06 a

3.24 ± 0.11 a

HA

1.71 ± 0.16 b

1.68 ± 0.14 b

5.46 ± 0.12 b

3.11 ± 0.12 a

FA

1.76 ± 0.13 b

1.76 ± 0.14 b

5.52 ± 0.18 b

2.92 ± 0.09 b

SE

1.27 ± 0.08 c

1.34 ± 0.02 cd

6.11 ± 0.21 a

2.75 ± 0.25 b

Significance

Irrigation regime

*

**

*

**

Biostimulants

**

**

**

**

Irrigation regime × biostimulants

**

**

**

**