Additional Si supplying for salt-stressed cucumber significantly decreased H_2O_2 and MDA content,inproved membrane fluxion,increased CoQ10 content,and promoted activities of ATPase and CCO.

• 加入外源Si后,线粒体H2O2和MDA的含量降低,膜流动性增加,CoQ10含量、ATP酶及细胞色素c氧化酶活力增加。