[1]陈景玲,王静,王谦*,等. 基于叶绿素荧光的荆条灌丛对栓皮栎幼苗庇荫效应研究[J].西北林学院学报,2014,29(04):46-53.[doi:doi:10.3969/j.issn.1001-7461.2014.04.08]
　CHEN Jing-ling,WANG Jing,WANG Qian*,et al. Patronage Effect of Vervain Family to Quercus variabilis Saplings Based on Leaf Chlorophyll Fluorescence[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2014,29(04):46-53.[doi:doi:10.3969/j.issn.1001-7461.2014.04.08]
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 基于叶绿素荧光的荆条灌丛对栓皮栎幼苗庇荫效应研究()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第29卷
期数:
2014年04期
页码:
46-53
栏目:
出版日期:
2014-07-30

文章信息/Info

Title:
 Patronage Effect of Vervain Family to Quercus variabilis Saplings Based on Leaf Chlorophyll Fluorescence
文章编号:
1001-7461(2014)04-0046-08
作者:
 陈景玲; 王静; 王谦*; 吴明作; 袁远; 赵勇
 （河南农业大学，河南 郑州 450002）
Author(s):
 CHEN Jing-ling;  WANG Jing;  WANG Qian*;  WU Ming-zuo;  YUAN Yuan; ZHAO Yong
 (Henan Agricultural University, Zhengzhou, Henan 450002, China)
关键词:
 ; 荆条灌丛; 栓皮栎;  幼苗; 叶绿素荧光; 天气
Keywords:
 ; vervain family;  Quercus variabilis;  seedling;  chlorophyll fluorescence;  weather
分类号:
S723.13
DOI:
doi:10.3969/j.issn.1001-7461.2014.04.08
文献标志码:
A
摘要:
 利用叶绿素荧光这一光合作用的敏感指针，对比研究了荆条灌丛下和对照裸地的栓皮栎（Quercus variabilis）幼苗荧光参数在不同天气类型下的反映，同时也测定了栓皮栎幼苗的光曲线，得到了光饱和点和半饱和光强。结果表明，灌丛下与裸地的叶片Fv/Fm和Y(Ⅱ)、qL和qN、Y(NPQ)和Y(NO)等在晴天、多云、阴天下均有不同的反映，均表现出荆条灌丛的庇荫效应。结论：1)栓皮栎幼苗的光饱和点为1 942 μmol·m-2·s-1，半饱和光强为235 μmol·m-2·s-1，显现出栓皮栎并不具有对强光的特殊耐受力；2)晴天中午时段裸地叶片有明显的光抑制，但这种光抑制处于可逆的范围；3)Fv/Fm等叶绿素荧光参数反映出灌丛下栓皮栎幼苗叶片的光合活性高、光保护能力强，光合状况优于对照，荆条灌丛对栓皮栎幼苗生长具有明显的保护效应。
Abstract:
 For the purpose of investigating the nurse effect of Vervain family to Quercus variabilis seedlings, the paper analyzed the leaf chlorophyll fluorescence parameters of Q. variabilis seedlings planted in bare land and under vervain family on different weather conditions by using the photosynthetic sensitive pointer of chlorophyll fluorescence. It measured the light curve of Q. variabilis seedlings and determined light saturation point and half saturation light intensity, Ik. The results showed chlorophyll fluorescence parameters, Fv/Fm and Y (Ⅱ), qL and qN , Y(NPQ) and Y(NO), of Q. variabilis seedlings planted in bare land and under vervain family on different weather conditions all had different reactions, but all the reactions expressed the nurse effect of vervain family. Conclusion: 1) the light saturation point of Q. variabilis seedlings was 1 942 μmol·m-2·s-1, the half saturation light intensity was 235 μmol·m-2·s-1, indicating Q. variabilis seedlings didn’t have special tolerance to intensive light. 2) There were clearly light inhibitions on clear days during noon hours for the Q. variabilis seedlings on bare lands, but the light inhibitions were reversible. 3) The Q. variabilis seedlings planted under vervain family had high photosynthetic activity, intensive light protection ability, and better light environments than planting on bare lands, which could be showed through chlorophyll fluorescence parameters, Fv/Fm and Y(Ⅱ). There was significant nurse effect of vervain family to Q. variabilis seedlings.

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备注/Memo

备注/Memo:
 收稿日期：2013-10-25修回日期：2013-11-21
基金项目：国家自然科学基金：基于气候空间上限列线的栓皮栎幼苗高温叠加干旱胁迫机制研究（31370621）；国家自然科学基金：番茄叶片低温胁迫气象指标的气候空间列线研究（31071321）。
作者简介：陈景玲，女，副教授，研究方向：植物与环境传热研究。E-mail: chenjingling5@163.com
*通信作者：王谦，男，教授，博士，研究方向：植物生态。E-mail: wangqianhau@163.com
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