Table 1 Comparison of physiological and biochemical parameters in grapevine leaves in response to drought stress.

Chlorophyll contents (mg g⁻¹)

1.16 ± 0.08

0.85 ± 0.09

−26.72

Chla contents (mg g⁻¹)

0.43 ± 0.11

0.28 ± 0.06

−34.88

Chlb contents (mg g⁻¹)

0.73 ± 0.06

0.57 ± 0.04

−21.92

Photosynthesis activity (µmole m⁻²sec⁻¹)

23.67 ± 0.81

16.08 ± 0.75

−32.20

Stomatal conductance (µmole m⁻²sec⁻¹)

0.15 ± 0.03

0.09 ± 0.02

40.00

Net CO2 assimilation (µmole m⁻²sec⁻¹)

9 ± 0.03

5 ± 0.03

44.44

MDA contents (nmol/g)

5.35 ± 0.21

8.61 ± 0.25

60.93

SOD activity (U/g/min)

371.56 ± 10.21

650.85 ± 15.7

75.16

POD activity (U/g/min)

18.23 ± 0.97

43.9 ± 1.01

140.81

CAT activity (U/g/min)

6.32 ± 1.21

19.01 ± 0.99

200.79

Proline (ng/g FW)

1.124 ± 0.04

1.711 ± 0.05

52.37