首页 > 过刊浏览>2018年第26卷第3期 >255-261. DOI:10.11926/jtsb.3816
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不同光照强度对假紫万年青生长和叶绿素荧光参数的影响
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广东省教育厅高等学校特色研究项目（2014KTSCX142）；广东省科技厅科技计划项目（2014A030304063）资助


Effect of Light Intensity on Growth and Chlorophyll Fluorescence Parameters of Belosynapsis ciliata
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    摘要:

    为了解光照对假紫万年青（Belosynapsis ciliata）生长的影响，研究了不同光照强度下假紫万年青形态特征和叶绿素荧光参数的变化。结果表明，随着遮阴强度的增加，假紫万年青的自然株高有所增加，节数、茎粗、分枝数和茎长度均减少；而不同光照强度对假紫万年青节间长的影响不明显；其叶绿素a、叶绿素b、叶绿素总含量和叶绿素a/b先增加后又减少，以15.2%NS时达到最大。叶绿素b含量与叶绿素荧光的Fv/Fm呈负相关，Fv/Fm为0.75~0.8。因此，在高光照条件下，假紫万年青匍匐近地生长，随着光照条件的逐渐减弱，趋向直立生长。在屋顶绿化种植的初期采用适度遮阴（35.2%NS）可使其更好的生长，加速成坪，降低管理成本。

    Abstract:

    In order to understand the effect of illumination on the growth of Belosynapsis ciliate, the changes in morphological character and chlorophyll fluorescence were studied under different light intensity by using artificial shading method. The results showed that with the increment of shading intensity, the height of B. ciliata increased, but the node number, stem diameter, and length of branch decreased, the internode length was not obvious change, while the chlorophyll a, chlorophyll b, total chlorophyll contents and chlorophyll a/b increased at first and then decreased, and reached up to the maximum under 15.2%NS. The Fv/Fm of B. ciliata had negatively correlated with chlorophyll b content, which ranged from 0.75 to 0.8. So, it was suggested that B. ciliata grown prostrate near ground under high light, and tend to erect with weaken of light. Therefore, appropriate shade (35.1%NS) could promote growth of B. ciliata at early roof greening, accelerate turf and reduce management cost.

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郭微,刘萍,邓磊,王金将,洪岚,陈平,孙延军.不同光照强度对假紫万年青生长和叶绿素荧光参数的影响[J].热带亚热带植物学报,2018,26(3):255~261

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  • 收稿日期:2017-09-06
  • 最后修改日期:2017-12-06
  • 在线发布日期: 2018-05-29
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