[1]贺安娜,李胜华,朱亚.白及不同月份光合作用比较研究[J].北方园艺,2014,38(22):162-165.
　HE An-na,LI Sheng-hua,ZHU Ya.Comparison of Photosynthesis in Different Months of Bletilla striata[J].Northern Horticulture,2014,38(22):162-165.
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白及不同月份光合作用比较研究

《北方园艺》[ISSN:1001-0009/CN:23-1247/S] 卷: 第38卷 期数: 2014年22期 页码: 162-165 栏目: 出版日期: 2014-11-30
Title:
Comparison of Photosynthesis in Different Months of Bletilla striata
文章编号:
1001-0009（2014）22-0162-04
作者:
贺安娜1; 2; 3; 李胜华1; 2; 3; 朱亚1
1．怀化学院 生命科学系,湖南 怀化 418008；
2.民族药用植物资源研究与利用湖南省重点实验室，湖南 怀化 418008；
3.湘西药用植物与民族植物学湖南省高校重点实验室，湖南 怀化 418008
Author(s):
HE An-na1; 2; 3; LI Sheng-hua1; 2; 3; ZHU Ya1
1.Department of Life Science,Huaihua University,Huaihua,Hunan 418008;
2.Key Laboratory of Research and Utilization of Ethnomedicinal Plant Resources of Hunan Province,Huaihua,Hunan 418008;
3.Key Laboratory of Xiangxi Medicinal Plant and Ethnobotany of Hunan Higher Education,Huaihua,Hunan 418008
关键词:
白及; 光合特性; 不同月份; 日变化
Keywords:
Bletilla striata; photosynthetic characteristics; different months; diurnal variation
分类号:
R 282
文献标志码:
A
摘要:
以白及为试材，采用Li-6400便携式光合仪，研究比较了白及在6月份、8月份及10月份的光合日变化。结果表明：白及光合速率日变化曲线都有午休现象，其中6月份的光合速率最高，9:00出现峰值，为8.1 μmol.m-2.s-1；8月份的光合速率也在9:00最高，为5.81 μmol.m-2.s-1，10月份的光合速率整体都很低，平均为3.31 μmol.m-2.s-1。相关性分析结果显示，6月份及10月份光合速率与光合有效辐射、气孔导度呈正相关，影响光合速率的因素气孔因子占主导地位。
Abstract:
Taking Bletilla striata as materials,the diurnal variation of photosynthetic in June,and August and October by using the Li-6400 photosynthetic system was studied and compared.The results showed that,diurnal variation of photosynthetic rate had a ‘midday depression’ phenomenon,and the photosynthetic rate in June was stronger when there was the strongest photosynthesis and the maximum value reached to 8.1 μmol.m-2.s-1 at 9:00.The maximum value in autumn was also at 9:00 reached to 5.81 μmol.m-2.s-1,and the photosynthetic rate in October was total low whose average value was only 3.31 μmol.m-2.s-1.There was a significant positive correlation between net photosynthetic rate and light intensity in June and October,and the photosynthetic rate of Bletilla striata mainly determined by stomata factors.

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备注/Memo

第一作者简介：贺安娜（1981-），女，硕士，讲师，研究方向为药用植物发育生物学。E-mail:anna99102@163.com.

基金项目：植物学湖南省“十二五”重点建设学科资助项目；怀化市科技局重点资助项目。
收稿日期：2014-05-22

更新日期/Last Update: 2014-12-13