摘要：A pot experiment was conducted to study the effects of different concentrations of chitosan solutions (0, 1, 2, 4, 6 g/L) on soluble sugar content inPrunus davidianaseedlings. The result showed that there was no significant difference of the soluble sugar content in roots, stems, leaves and shoot inP. davidianaseedlings between at 1 g/L concentration and the control. All concentration treatments were reduced the soluble sugar content in roots and stems ofP. davidianaseedlings compared with the control. On the contrary, all concentration treatments were improved the soluble sugar content in leaves and shoot ofP. davidianaseedlings compared with the control and the concentration treatment of 2 g/L and 4 g/L was at a higher level. All concentration treatments were improved the content in relative conductivity of blade inP. davidianaseedlings and the concentration treatment of 4 g/L was at a higher level. On the contrary, all concentration treatments were reduced the content in soil conductivity. Therefore, the chitosan solutions concentration of 2 g/L and 4 g/L concentration was beneficial to soluble sugar content inP. davidianaseedlings. On the contrary, high concentration of chitosan solutions was not good for soluble sugar content.
