欢迎访问《中国农学通报》，
中国农学通报

中国农学通报 ›› 2010, Vol. 26 ›› Issue (10): 152-155.

• 农学 农业基础科学 • 上一篇    下一篇

不同盐浓度处理对三种结缕草K+、Na+含量和膜质过氧化的影响

李娜,李志军,李培环,赵庆柱,董晓颖   

  • 收稿日期:2009-12-08 修回日期:2010-01-05 出版日期:2010-05-20 发布日期:2010-05-20

Effect on K+、Na+ Content and Lipid Peroxidation of Three Kinds Zoysia under Different Salt Treatments

Li Na, Li Zhijun, Li Peihuan, Zhao Qingzhu, Dong Xiaoying   

  • Received:2009-12-08 Revised:2010-01-05 Online:2010-05-20 Published:2010-05-20

PDF (PC)

837

摘要：

摘 要：以大穗结缕草、沟叶结缕草和日本结缕草为试材，研究了不同盐浓度处理40天时对三种结缕草K+、Na+含量、相对电导率和丙二醛(MDA)含量的影响。结果表明：随盐浓度增加，三种结缕草叶片中的K+ 含量相对变化较小，含量均较高；而Na+含量的相对变化较大，当盐浓度为0.8%时，大穗结缕草、沟叶结缕草和日本结缕草的Na+含量较对照分别增加了226%、336%和462%，三者差异显著；随盐浓度增加，三种结缕草的相对电导率和丙二醛含量均逐渐增加，但大穗结缕草的相对电导率和丙二醛含量增加值最小。相关性分析表明，叶片内K+/Na+与质膜透性之间存在负相关，与丙二醛含量之间存在负相关，质膜透性与丙二醛含量之间存在正相关。

关键词: 木薯, 木薯, 施肥, 研究, 中国

Abstract:

Abstract: Zoysia macrostachya, Zoysia metrella and Zoysiajaponica were used to study the effect on K+、Na+ content, the relative conductivity and the MDA content under different salinity treatments after 40 days. The results showed: with the salt concentration increasing ,the changes of K+ content were less, and their contents were higher; while the changes of Na+ content were larger, under the 0.8% salt treatment, the Na+ contents of Zoysia macrostachya, Zoysia metrella and Zoysiajaponica were increased by 226%、336% and 462% separately then CK, and had significant difference; With the salt concentration increasing ,the relative conductance ratio and the MDA content of the three grasses were increasing; The added value about the relative conductance ratio and the MDA content of Zoysia macrostachya were least compared with two other grasses. Relevance analysis indicated that the K+/Na+ between membrane permeability and the MDA content were negative correlation, the membrane permeability and the MDA content was positive correlation.