Table 2 Response of the sunflower germplasms for leaf gas exchange parameters under control and osmotic stress treatment in the hydroponic systems.

2.13^c ± 0.93

1.52^C ± 1.05

1.74^c ± 0.72

1.18 ^c ± 0.36

1.22^a ± 0.13

1.29^b ± 0.11

0.18^b ± 0.05

0.11^c ± 0.03

24.32^a ± 1.03

25.39^a ± 1.14

4.18^b ± 0.74

3.14^B ± 1.23

3.92^b ± 1.01

2.52 ^b ± 0.76

1.07^a ± 0.11

1.25^b ± 0.13

0.29^b ± 0.19

0.21^b ± 0.08

25.34^a ± 0.94

25.82^a ± 1.13

7.34^a ± 2.19

4.88^A ± 1.64

7.23^a ± 1.39

3.52 ^a ± 0.81

1.02^a ± 0.14

1.39^a ± 0.18

0.67^a ± 0.16

0.42 ^a ± 0.0

25.27^a ± 1.10

25.62^a ± 1.01