| The effect of chitosan was observed on mango (Mangifera indica) detached leaves that suffered 20% PEG-6000 osmotic stress. The results showed that the relative water content (RWC), Chlorophyll content and proline content of leaves treated with chitosan were higher than those of CK. Meanwhile, chitosan treatment enhanced peroxidase (POD) activities. It is concluded that chitosan can effectively alleviate the damage of osmotic stress to plants, hence improving drought resistance. |