华北农学报 ›› 2009, Vol. 24 ›› Issue (6): 74-77. doi: 10.7668/hbnxb.2009.06.015

所属专题: 玉米

• 论文 • 上一篇    下一篇

不同生育时期玉米苞叶叶绿素荧光特性差异分析

徐洪文1, 宋凤斌2, 朱先灿1, 童淑媛1   

  1. 1. 中国科学院, 东北地理与农业生态研究所,吉林 长春 130012;
    2. 中国科学院, 东北地理与农业生态研究所,吉林 长春 130012
  • 收稿日期:2009-10-20 出版日期:2009-12-28
  • 通讯作者: 宋凤斌(1963-),男,吉林前郭人,研究员,博士生导师,主要从事作物抗逆生理生态研究。
  • 作者简介:徐洪文(1979-),男,黑龙江齐齐哈尔人,博士,主要从事植物生理生态方面的研究.
  • 基金资助:
    国家"863"计划项目(2006AA10Z227)

Analysis on Chlorophyll Fluorescence of Husk Leaves of Maize at Different Growing Stages

XU Hong-wen1, SONG Feng-bin2, ZHU Xian-can1, TONG Shu-yuan1   

  1. 1. Northeast Institute of Geography and Agricultural Ecology, Chinese Academy of Sciences, Changchun 130012, China;
    2. Gradual School of the Chinese Academy of Sciences, Beijing 100049, China
  • Received:2009-10-20 Published:2009-12-28

摘要: 以郑单958和农大36两个玉米品种为研究材料,对大田条件下不同生育时期玉米苞叶的叶绿素含量和叶绿素荧光动力学进行了比较分析.结果表明,不同生育时期玉米苞叶叶绿素含量呈先升后降的变化趋势,并在灌浆期达到最高值,且农大36苞叶的叶绿素降低速率要低于郑单958,这样有利于其保持更为持久的光合能力.不同生育时期玉米品种间苞叶叶绿素荧光参数(Fm、Fv、Fv/Fm、Fv/Fo等)的变化规律基本一致,郑单958高于农大36,说明郑单958苞叶反应中心活性较高,具有较高的电子传递速率,并且苞叶叶片开放的PSⅡ反应中心捕获激发能的效率高于后者.

关键词: 玉米, 苞叶, 叶绿素含量, 叶绿素荧光

Abstract: Zhengdan 958 and Nongda 364 were adopted in this experiment,both contents of chlorophyll and chlorophyll fluorescence parameters of husk leaves of maize(Zea mays L.) varieties at different growing stages were comparatively studied in the field condition.The results showed that chlorophyll content of husk leaves increased at first and then decreased,and reached the peak value values at milk-filling stage.The degradation rate of chlorophyll in husk leaves of Nongda 364 was lower than that of Zhengdan 958 at different growing stages,which was helpful in keeping photosynthetic activities.It was shown that the same diurnal change trend of chlorophyll fluorescence parameters (Fm,Fv,Fv/ Fm,Fv/Fo,etc.) between the two varieties at different stages.Zhengdan 958 had higher chlorophyll fluorescence parameters than Nongda 364,indicating that Zhengdan958 was higher than Nongda 364 in active of PSⅡreaction center,rate of electron transport,efficiency of excitation energy captured by open PSⅡreaction centers.

Key words: Maize, Husk leaves, Chlorophyll content, Chlorophyll fluorescence

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引用本文

徐洪文, 宋凤斌, 朱先灿, 童淑媛. 不同生育时期玉米苞叶叶绿素荧光特性差异分析[J]. 华北农学报, 2009, 24(6): 74-77. doi: 10.7668/hbnxb.2009.06.015.

XU Hong-wen, SONG Feng-bin, ZHU Xian-can, TONG Shu-yuan,. Analysis on Chlorophyll Fluorescence of Husk Leaves of Maize at Different Growing Stages[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2009, 24(6): 74-77. doi: 10.7668/hbnxb.2009.06.015.

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