Effect of oligochitosan on drought resistance of sugarcane seedlings

The relative soil water content and some drought resistance indexes including leaf water potential,proline content and soluble protein content were employed for studying the effect of spraying leaves with three different molecular weight(Mw3 000;3 000Mw5 000;5 000Mw10 000) oligochitosan with concentration of 50 mg/L on drought resistance of sugarcane.The result showed that oligochitosan can delay the decrease of water potential,proline content and soluble protein content under drought stress,which implies that oligochitosan has a potential for drought-resistant modulation.