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德州学院 物理系
收稿:2008-11-10,
修回:1900-1-2,
网络首发:2009-08-30,
纸质出版:2009-08-30
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王红梅. 不同盐胁迫时间对叶片延迟发光的影响[J]. 发光学报, 2009,30(4):545-548.
WANG Hong-mei. Effect of Salt Stress with Different Time on Delayed Luminescence from Leaves[J]. Chinese Journal of Luminescence, 2009, 30(4): 545-548.
以荷叶为实验材料
用BPCL型微弱发光测量仪
测定了不同浓度NaCl溶液处理不同时间的叶片的延迟发光
观察了延迟发光初始强度随处理时间的变化和延迟发光衰减参数随处理时间的变化。结果表明:随着胁迫时间的增加
0%
0.01%和0.10%处理的叶片
其延迟发光初始强度和衰减参数在一个小范围的上升之后一直呈下降趋势
1.00%
5.00%处理的初始延迟发光强度和衰减参数一直呈下降趋势
10.00%
20.00%处理的初始延迟发光强度和衰减参数从一开始就处于很低的水平。从整体上看
0.10%浓度处理对叶片延迟发光初始强度和衰减参数影响最小。整个实验表明
延迟发光可以规律性地反应盐胁迫对叶片的伤害程度。该结论为生物物理方法测量外界胁迫对叶片的影响具有一定的参考意义。
paper
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