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| 低温胁迫对玉米幼苗电导率和叶绿素荧光参数的影响 | |
| 引用本文： | 杨猛,魏玲,庄文锋,袁海洋,赵东旭,孙继,魏湜.低温胁迫对玉米幼苗电导率和叶绿素荧光参数的影响[J].玉米科学,2012,20(1):90-94. |
| 作者姓名： | 杨猛 魏玲 庄文锋 袁海洋 赵东旭 孙继 魏湜 |
| 作者单位： | 1. 东北农业大学农学院,哈尔滨150030;哈尔滨市农业科学院,哈尔滨150070 2. 重庆市南川区农业委员会,重庆,408400 3. 哈尔滨市农业科学院,哈尔滨,150070 4. 东北农业大学农学院,哈尔滨,150030 |
| 基金项目： | 国家科技支撑计划(2011BAD16B11)、黑龙江省攻关项目(GA07B101A8)、国家科技支撑计划（2011BAD32B03-02） |
| 摘 要： | 以3个玉米品种为试验材料,通过盆栽试验,研究低温胁迫下电导率和叶绿素荧光参数的变化。结果表明,3个品种的抗低温性为金玉5>兴垦3>吉单198,随着低温处理时间的延长,3个品种叶片电导率和初始荧光(F0)上升,Fv/Fm、Fv/F0、NPQ整体上均呈下降趋势。说明低温胁迫使叶绿素所吸收的光能被用于光合作用的部分减少,玉米叶光系统Ⅱ(PSⅡ)活性中心受损。 |
| 关 键 词： | 玉米 低温胁迫 电导率 荧光参数 |
| 收稿时间： | 2010/11/13 0:00:00 |
Effects of Low-temperature Stress on Electric Conductivity and Fluorescence Parameters of Maize Seedling |
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| YANG Meng,WEI Ling,ZHUANG Wen-feng and WEI Shi.Effects of Low-temperature Stress on Electric Conductivity and Fluorescence Parameters of Maize Seedling[J].Journal of Maize Sciences,2012,20(1):90-94. | |
| Authors: | YANG Meng WEI Ling ZHUANG Wen-feng and WEI Shi |
| Institution: | Ling3,ZHUANG Wen-feng1,2,WEI Shi1,et al.(1.Northeast Agricultural University,Harbin 150030;2.Harbin Academy of Agricultural Sciences, Harbin 150070;3.Nanchuan District Agricultural Committee of Chongqing,Chongqing 408400,China) |
| Abstract: | Using three maize varieties,through pot experiment to study the change of electric conductivity and fluorescence parameters under low-temperature stress.The results showed that the resistance of three varieties is Jin Yu 5>Xing Ken 3>Ji Dan 198.Membrane leakage and minimum chlorophyll fluorescence(F0) of the three varieties were increased;the Fv/Fm,Fv/F0,and NPQ were declining with low-temperature treatment time.This experiments show that light absorbed by chlorophyll for photosynthesis can be reduced.The PSⅡactive centers of maize leaves were injured under low-temperature stress. |
| Keywords: | Maize Low temperature stress Electric conductivity Fluorescence parameters |
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