| 干旱胁迫条件下欧李叶片超微弱发光与叶绿素荧光特性关系 |
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| 引用本文： | 张芳,任鹏达,李连国,王金印,张毅辉,郭金丽.干旱胁迫条件下欧李叶片超微弱发光与叶绿素荧光特性关系[J].安徽农业大学学报,2021,48(1):46-53. |
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| 作者姓名： | 张芳 任鹏达 李连国 王金印 张毅辉 郭金丽 |
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| 作者单位： | 内蒙古农业大学园艺与植物保护学院,呼和浩特010018 |
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| 基金项目： | 国家社会科学基金一般项目"社会扶贫项目实施中的嵌入性、价值共创与减贫效应研究"（16BGL133）;广东省哲学社会科学"十三五"规划项目"后扶贫时代旅游社会创业的网络治理与动态演化研究"（GD17CGL19）;广东省教育厅特色创新类项目"乡村振兴背景下制度复杂性与返乡创客村干部社会创业合法性响应行为研究（2019WTSCX109） |
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| 摘 要： | 以欧李盆栽苗为试验材料,研究干旱胁迫下欧李叶片超微弱发光与叶绿素荧光特性的变化及两者之间的关系.结果表明:抑制光系统活性条件下,随着干旱胁迫程度的加深,最大荧光产量(Fm)、天线转化效率(Fv'/Fm,)、电子传递速率(ETR)、PSⅡ潜在活性(Fv/F0)、最大光化学效率(Fv/Fm)、实际光化学效率(ΦPSⅡ)、光化学淬灭系数(qP)呈下降趋势且均低于对照,非光化学淬灭系数(qN)、天线热耗散能量(D)呈上升趋势且均高于对照;超微弱发光强度(UWL)呈下降趋势且低于对照.相关分析显示,UWL强度与ΦPSⅡ、qP呈高度正相关,差异性极显著;与Fv'/Fm'、ETR、Fv'/Fm、Fm呈中度正相关,其中与Fv'、Fm'、ETR、Fv/Fm差异性显著;与D、qN 呈中度负相关,差异性显著.研究发现,在抑制光系统活性条件下,欧李叶片的UWL强度与叶绿素荧光特性发生显著变化,随着干旱胁迫程度的加深,UWL强度随Fm、Fv'/Fm'、ETR、Fv/F0、Fv/Fm、ΦPSⅡ和qP的下降而下降,说明欧李叶片UWL与光系统活性有关.
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| 关 键 词： | 欧李 干旱胁迫 超微弱发光 叶绿素荧光 |
| 收稿时间： | 2020/11/13 0:00:00 |
Relationship between ultra-weak luminescence and chlorophyll fluorescence characteristics in leaves of Cerasus humilis under the condition of drought stress |
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| ZHANG Fang,REN Pengd,LI Lianguo,WANG Jinyin,ZHANG Yihui,GUO Jinli.Relationship between ultra-weak luminescence and chlorophyll fluorescence characteristics in leaves of Cerasus humilis under the condition of drought stress[J].Journal of Anhui Agricultural University,2021,48(1):46-53. |
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| Authors: | ZHANG Fang REN Pengd LI Lianguo WANG Jinyin ZHANG Yihui GUO Jinli |
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| Institution: | School of Economics and Management, Wuyi University, Jiangmen 529000, China; School of Business Administration, Zhejiang University of Finance and Economics, Hangzhou 310018, China |
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| Abstract: | Based on 7,436 online reviews of 345 poverty alleviation projects on zhongchou.com and jd.com and through the multiple linear regression model, this paper explores the moderating effect of the review characteristics and the response rate for initiators of the projects on the relation between the emotional tendency value of the reviews and the financing performance of the crowdfunding. The results reveal that: the number, emotional tendency value, comprehensiveness and timeliness of the reviews have a significant positive impact on the financing performance; the response rate for the initiators has a positive moderating effect on the impact of positive emotional tendency value on the financing performance, but it is not on the impact of negative emotional tendency value on the financing performance. |
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| Keywords: | poverty alleviation crowdfunding financing performance review characteristics response rate for initiators affect heuristic availability heuristic |
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