【摘要】 采用水培试验,研究了盐胁迫下硅对草莓生长发育的影响。结果表明:硅处理能够减轻草莓叶片的盐害程度,使植株保持一定的新根发生能力。硅能够降低盐胁迫下叶片质膜透性,使MDA含量减少,减轻膜质过氧化程度;硅能降低脯氨酸的含量,提高SOD的活性,减轻了活性氧及自由基对草莓叶片的毒害作用;加硅处理使草莓根系活力上升、根系质膜透性降低、植株生物产量增加。更多还原

【Abstract】 The effect of silicon on growth of strawberry was studied under salt stress by water culture experiment.Results showed that the degree of harmful effect caused by salt coud be alleviated and the new root growth could be facilitated in the silicon treatment.The permeability of leaf cytoplasmic membrance and the content of MDA could be reduced,and the degree of cytoplasmic membrance peroxidization could be lessened by silicon.The content of proline decreased,however,the activity of SOD heightened and the poisonous effect of active oxygen and free radical on leaves of strawberry could be alleviated by silicon.The root activity was improved,the permeability of root cytoplasmic membrance decreased and the yield of strawberry increased in the treatment of added silicon.更多还原