干旱胁迫对阿诺红鞑靼忍冬生理指标的影响  

Effect of Drought Stress on Physiological Indices of Lonicera tatarica

作　　者：董明[1] 苏德荣[1] 刘泽良[2] 马洁[2] 

机构地区：[1]北京林业大学森林培育教育部重点实验室,北京100083 [2]天津市河西区园林局,天津300211

出　　处：《西北林学院学报》2008年第4期8-13,共6页Journal of Northwest Forestry University

基　　金：国家自然科学基金项目(50679002)

摘　　要：为了解阿诺红鞑靼忍冬(Lonicera tataricaArnold Red)在干旱条件下的生理反应以及对其耐旱性做出评价,本文通过人工水分胁迫条件下的盆栽试验,对阿诺红鞑靼忍冬2 a生苗叶片生理指标在一段连续的时间内进行了观测,研究了干旱胁迫下阿诺红鞑靼忍冬叶片游离脯氨酸(Pro),组织含水量,自由水,束缚水,可溶性糖,叶绿素,过氧化物酶(POD)的变化,结果表明,在干旱胁迫下,阿诺红鞑靼忍冬叶片游离脯氨酸含量,可溶性糖含量,束缚水含量,叶绿素总含量呈不断上升的趋势;组织含水量、自由水含量以及自由水/束缚水比值呈下降趋势;POD活性则出现前期下降后期上升的变化情况。各项生理指标的变化表现出阿诺红鞑靼忍冬对干旱胁迫有较强的适应性,是一种耐旱性较强的园林植物。In order to know physiological response of Lonicera tatarica Arnold Red under drought stress and evaluate its drought resistance,physiological indices in leaves of the two-year-old L.tatarica plantlets were observed for a long continuous-time by pot experiment under artificial water stress conditions,and changes of the content of free proline,tissue water, free water,bound water,soluble sugar and chlorophyll as well as POD activity were measured.The results showed that under drought stress,the content of fr...

关 键 词：阿诺红鞑靼忍冬 水分胁迫 叶片生理指标 抗旱性 

分 类 号：S793[农业科学—林木遗传育种]