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40d后对3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,3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,3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。
Zoysia macrostachya, Zoysia metrella andZoysiajaponica 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 andZoysiajaponica 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 ofZoysia 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.
出处
《中国农学通报》
CSCD
北大核心
2010年第10期152-155,共4页
Chinese Agricultural Science Bulletin
关键词
结缕草
盐处理
电导率
丙二醛
Zoysia
salt treatment
relative conductivity
MDA
