| 土壤铅胁迫对旱柳生长及相关生理特性的影响 |
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| 引用本文： | 李艳丽,李永杰.土壤铅胁迫对旱柳生长及相关生理特性的影响[J].北方园艺,2011(13):168-170. |
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| 作者姓名： | 李艳丽 李永杰 |
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| 作者单位： | 河北省林业调查规划设计院,河北,石家庄,100083;河北省林业调查规划设计院,河北,石家庄,100083 |
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| 基金项目： | “十一五”国家科技支撑计划资助项目(2006BAD03A0104-2) |
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| 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。
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| 关 键 词： | 旱柳 铅胁迫 生理特性 |
Effect of Lead Stress on the Growth and Some Physiological Characteristics in Salix matsudana Seedling |
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| LI Yan-li,LI Yong-jie.Effect of Lead Stress on the Growth and Some Physiological Characteristics in Salix matsudana Seedling[J].Northern Horticulture,2011(13):168-170. |
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| Authors: | LI Yan-li LI Yong-jie |
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| Institution: | LI Yan-li,LI Yong-jie(Academy of Forestry Inventory and Planning of Hebei,Shijiazhuang,Hebei 050051) |
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| Abstract: | 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 lea... |
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| Keywords: | Salix matsudana lead stress physiological characteristics |
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