Inhibition %

Treatments

20 µg/ml

50 µg/ml

100 µg/ml

150 µg/ml

200 µg/ml

Control

4.72a ± 0.48

11.45a ± 0.18

23.38a ± 0.38

31.67a ± 0.36

42.73a ± 0.54

NaCl

7.37c ± 0.36

15.70c ± 0.24

26.71c ± 0.30

38.25c ± 0.30

51.64c ± 0.25

Control + Zn-Ch

6.30b ± 0.36

13.32b ± 0.36

24.34b ± 0.30

34.48b ± 0.24

47.52b ± 0.30

NaCl + Zn-Ch

9.24d ± 0.30

18.51d ± 0.42

29.42d ± 0.28

40.39d ± 0.48

54.46d ± 0.24

EDTA standard

42.41e ± 0.30

63.50e ± 0.43

75.51e ± 0.36

82.80e ± 0.42

91.56e ± 0.24

LSD (0.05)

0.70

0.43

0.56

0.61

0.65