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* | ||