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当前位置: 首页 > 文章 > 土壤铅胁迫对旱柳生长及相关生理特性的影响 北方园艺 2011 (13) 168-170
Position: Home > Articles > Effect of Lead Stress on the Growth and Some Physiological Characteristics in Salix matsudana Seedling Northern Horticulture 2011 (13) 168-170

土壤铅胁迫对旱柳生长及相关生理特性的影响

作  者：
李艳丽;李永杰
单  位：
河北省林业调查规划设计院
关键词：
旱柳;铅胁迫;生理特性
摘  要：
采用盆栽试验方法研究了不同铅胁迫浓度下旱柳幼苗的生长及相关生理指标的变化。结果表明:随着重金属铅胁迫浓度的增加,旱柳的比叶重、株高与地径生长受到抑制;叶绿素含量及根系活力呈下降的趋势;叶片游离脯氨酸含量与细胞膜透性呈逐渐增加趋势。在浓度为300mg/kg时,游离脯氨酸、细胞膜透性及根系活力与对照相比达到显著差异(P<0.05);在浓度600mg/kg时,株高、地径与对照相比达到极显著差异(P<0.01);叶绿素a与对照相比达到显著差异(P<0.05);不同铅胁迫浓度对叶绿素b、叶绿素a/b值没有显著的影响。
译  名：
Effect of Lead Stress on the Growth and Some Physiological Characteristics in Salix matsudana Seedling
作  者：
LI Yan-li,LI Yong-jie(Academy of Forestry Inventory and Planning of Hebei,Shijiazhuang,Hebei 050051)
关键词：
Salix matsudana;lead stress;physiological characteristics
摘  要：
The effect of lead stress on the growth and some physiological indexes of Salix matsudanaunder different concentration treatments by using pot-culture method were studied.The results showed that the specific leaf weight,plant height and ground diameter of Salix matsudana seedling had an inhibited growth,and the gross content of chlorophyll and root activity exhibited an decreasing tendency,while the changes of praline contents and cell membrane permeability was opposite with increasing concentrations of lead stress.When the concentration of lead were 300 mg/kg,the proline contents,cell membrane permeability and root activity had a significantly difference respectively(P<0.05)in comparison with control.When the concentration of lead was 600 mg/kg,the plant height and ground diameter had a significantly difference respectively(P<0.05)in comparison with control.The lead stress had no obvious influence on the Chlorophyll a and the ratio of Chlorophyll a to Chlorophyll b.

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