Vetiver

Initial

1st

2nd

Control

30.03 ± 0.73

28.05 ± 1.57

26.71 ± 1.33

IAA

34.07 ± 1.54

32.64 ± 0.73

31.03 ± 0.43

GA3

34.15 ± 0.47

29.74 ± 1.47

27.62 ± 0.48

Sunflower

Initial

1st

2nd

Control

31.39 ± 3.2

24.85 ± 0.26

24.90 ± 0.37

IAA

32.50 ± 2.29

29.20 ± 0.51

27.59 ± 0.56

GA3

30.09 ± 0.43

29.55 ± 0.82

28.25 ± 1.26

Table 1: Different state of copper concentration (mg/kg).