[1]段伟,赵阳,王保平,等. 基于光响应曲线特征参数的楸叶泡桐优良无性系选择[J].西北林学院学报,2017,32(6):107-112.[doi:10.3969/j.issn.1001-7461.2017.06.16]
　DUAN Wei,ZHAO Yang,WANG Bao-ping*,et al. Selection of Paulownia catalpifolia Clones Based on Photosynthetic Light-response Curve Parameters[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2017,32(6):107-112.[doi:10.3969/j.issn.1001-7461.2017.06.16]
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 基于光响应曲线特征参数的楸叶泡桐优良无性系选择()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第32卷
期数:
2017年第6期
页码:
107-112
栏目:
出版日期:
2017-11-30

文章信息/Info

Title:
 Selection of Paulownia catalpifolia Clones Based on Photosynthetic Light-response Curve Parameters
文章编号:
1001-7461(2017)06-0107-06
作者:
 段伟1; 2; 赵阳1; 2; 王保平1; 2; 冯延芝1; 2; 乔杰1; 2; 崔令军1; 2; 周海江1; 2*
 （1.国家林业局 泡桐研究开发中心，河南 郑州 450003；2.中国林业科学研究院 经济林研究开发中心，河南 郑州 450003）
Author(s):
 DUAN Wei1; 2; ZHAO Yang1; 2; WANG Bao-ping1; 2*; FENG Yan-zhi1; 2; QIAO Jie1; 2; CUI Ling-jun; ZHOU Hai-jiang1; 2*
 （1.Paulownia Research and Development Center of State Forestry Administration,Zhengzhou,Henan 450003,China; 2.Non-timber Forestry Research and Development Centre,Chinese Academy of Forestry,Zhengzhou,Henan 450003,China）
关键词:
 ; 楸叶泡桐; 光合作用; 光响应特征参数; 选择
Keywords:
Paulownia catalpifolia;  photosynthesis;  light-response curve parameter;  selection
分类号:
S722.33
DOI:
10.3969/j.issn.1001-7461.2017.06.16
文献标志码:
A
摘要:
 采用指数函数模型对16个1年生楸叶泡桐无性系嫁接苗的光响应曲线进行拟合，分析其光合生理特性。结果表明，不同无性系间初始量子效率（α）、最大光合速率（Pmax）、暗呼吸速率（Rd）、最大浄光合速率（Pnmax）、光补偿点（Ic）、光饱和点(Isat)和可利用光幅度(PR)呈显著或者极显著水平的差异（F=6.632~9.880），7个光响应曲线方程特征参数的变异系数为17.263 1%~36.551 5%，说明不同无性系间光响应曲线各特征参数差异较大，可以利用的改良潜力较大。依据方差分析结果初选出CSD08、CHN01、CSD06和CHB02等4个光合特性优良的无性系。通过聚类分析将16个参试无性系分为4大类，不同类之间无性系各光响应曲线方程特征参数均呈显著或者极显著水平的差异（F=5.220~17.708），其中第I类无性系（CSD08、CHN01、CSD06）为具有α、Pmax、Pnmax、Isat、PR最高或相对较高，Rd、Ic相对较低等特性，可以作为复选出的苗期光合生理特性优良的楸叶泡桐无性系。
Abstract:
 In order to analyze the photosynthetic physiological characteristics of 16 clones of Paulownia catalpifolia with 1-year-old engrafted seedlings,photosynthetic light-response curves of these clones were fitted through exponential function model.Significant or extremely significant differences were found among different clones (F=6.632~9.880) in the parameters such as the initial quantum efficiency (α),maximum net photosynthetic rate (Pmax),dark respiration rate (Rd),maximum net photosynthetic rate (Pnmax),light compensation point (Ic),light saturation point (Isat) and the available optical amplitude (PR).The coefficients of variation of these 7 parameters were 17.263 1~36.551 5,and indicated relatively large potential genetic improvement.Clone CSD08,CHN01,CSD06 and CHB02 were selected as excellent photosynthetic clones preliminarily through the analysis of variance.The 16 clones were divided into 4 classes by cluster analysis.The light-response curve parameter of different classes showed significant or extremely significant differences (F=5.220~17.708).Parameters of α,Pmax,Pnmax,Isat and PR of class I including CSD08,CHN01 and CSD06 were the highest or relatively higher.Rd and Ic were relatively lower.It was concluded that CSD08,CHN01 and CSD06 could be selected as the relatively better clones with superior photosynthetic physiological characteristics at seedling stage.

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备注/Memo

备注/Memo:
 收稿日期：2017-06-25修回日期：2017-10-06
基金项目：林业公益性行业科研专项（201404106）。
作者简介：段伟，男，助理研究员，研究方向：泡桐栽培生理生态。E-mail:1227943618@qq.com
*通信作者：周海江，男，副研究员，研究方向：泡桐培育。E-mail:haijiangz123@sina.com
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