Treat-ment

Doses (μg∙plant⁻¹)

Nodulation

Plant growth

Number of nodules

Dry mass nodules

Heights(cm)

Leaves (number)

Pods (number)

Aerial part of the plant (dry mass)

Control

16.9 b

0.18 b

32.7 b

29.4

31.6 b

10.8 b

COS

75

16.1 b

0.28 ab

38.5 b

31.4

43.8 b

13.2b

750

24.8 a

0.23 b

38.1 b

31.0

38.8 ab

12.5 b

Chitosan

75

31.1 a

0.42 a

48.0 a

31.8

57.6 a

15.3 ab

750

25.7 a

0.41 a

46.9 a

34.9

59.4 a

17.5 a

1.63*

0.04*

1.43*

1.20*(s.n)

4.02*

1.04*