盐分胁迫下沙枣某些生理特性的研究  

A STUDY ON SOME PHSIOLOGICAL PROPERTIES OF ELAEAGNUS ANGUSTIFOLIA UNDER SALT STREES CONDITION

作　　者：张宝泽[1] 曹子谊[1] 赵可夫[1] 

机构地区：[1]山东师范大学生物系

出　　处：《林业科学》1992年第2期167-169,共3页Scientia Silvae Sinicae

基　　金：英国HDRA资助

摘　　要：沙枣又名桂香柳,银柳或红豆等,属于胡颓子科(Elaeagnaceae)胡颓子属(Elaeagnus L.)。沙枣生长较快,根系发达,具根瘤,抗逆性较强。其木材可用于建筑和家具,种子含油率高达24％,果可酿酒,叶可做饲料,是一种良好的经济树种。The seedlings of Elaeagnus angustifolia were planted in the nature saline soil and the sand culture of artifical salinization in different levels. The growth, photosynthetic and transpiration rate as well as the Na^+ and K^+ contents in leaves were determined. The results of field experiments showed that it could grow and develop normally in the saline soil whose salt content was 0.8-1.2％. Its photosynthesis and transpiration were normal. The experiment results of sand culture showed that 100mM NaCl had no influence on the growth of the seedlings, the Na^+ content increased and K^+ content decreased as NaCl content increased above 100mM. This showed that E. angustifolia could not exclude salt, but it hadan ability to salt toleranee. Moreover, the degree of leaf succelence increased under salt stress conditions which was the expression of preventing salt.

关 键 词：盐胁迫 沙枣 生理特性 

分 类 号：S79[农业科学—林木遗传育种]