Effects of Seon some element contents in leaves of rice seedling under Cd stress

Nutrient solution culture experiment was conducted to study the effects of Se on some element and chlorophyll contents in leaves of rice seedling under Cd stress.The results indicate that under a high concentration of Cd stress without Se supply,the Ca,Mg,Fe,Zn,Mn contents decrease while under a single treatment of 0.10mg/L Se,the Fe,Zn,Mn contents can increase in leaves significantly.The addition of Se to the solution with Cd （5.0～10.0mg/L） can increase the Ca,Mg,Fe,Mn contents, and Ca,Mg,Fe,Zn,Mn contents are affected by the interaction of Se and Cd.The value of chl.a/b ratio can not be taken as the index of Cd poison to rice seedling.