翅果油树幼苗抗旱性  

Drought resistance of Elaeagnus mollis seedlings

作　　者：刘任涛[1] 毕润成[1] 任佳 

机构地区：[1]山西师范大学生命科学学院,临汾041004

出　　处：《生态学杂志》2006年第12期1528-1531,共4页Chinese Journal of Ecology

基　　金：国家自然科学基金项目(30470296);山西省自然科学基金资助项目(20031090)。

摘　　要：通过盆栽试验，研究不同土壤水分条件下翅果油树（Elaeagnus mollis）幼苗的生长、叶水分和丙二醛含量等各项生理指标的变化。结果表明，轻、中度干旱（30％～35％、45％～50％）胁迫时叶片含水量和叶绿素含量下降幅度较小，水势较高，丙二醛含量较低，翅果油树幼苗能保汪基本的生长，表现出耐旱植物的生理特征；在重度干旱胁迫（20％～25％）条件下，叶含水量和叶绿素含量下降较显著，水势最低，丙二醛含量最高，植株矮小，颜色发黄，表明翅果油树幼苗受到干旱伤害严重，不能正常生长。The study with pot experiment showed that under light （30 % 35 % ） and medium （45 % - 50 % ） soil water stress, Elaeagnus mollis seedlings leaves had a smaller decrease of water and chlorophyll contents, higher water potential, and lower MDA content. The seedlings could grow normally, and presented the typical physiological characters of drought-resistant plant. Under serious （20 % - 25 % ） soil water stress, the water and chlorophyll contents in E. naollis seedlings leaves decreased markedly, water potential was the smallest, MDA content reached the highest, and the seedlings were short and colored yellow, suggesting that the seedlings were significantly harmed by the drought stress and couldn＇t grow normally.

关 键 词：翅果油树 土壤水分条件 抗旱性 

分 类 号：S792.99[农业科学—林木遗传育种]