华北农学报 ›› 2006, Vol. 21 ›› Issue (5): 28-32. doi: 10.3321/j.issn:1000-7091.2006.05.008

所属专题: 玉米 土壤肥料

• 论文 • 上一篇    下一篇

土壤水分胁迫对玉米光合特性的影响

韩希英1,2, 宋凤斌1, 王波1,2, 张磊1,2   

  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. 中国科学院研究生院, 北京 100039
  • 收稿日期:2006-04-12 出版日期:2006-10-28
  • 作者简介:韩希英(1979- ),女,山东潍坊人,在读博士,主要从事作物生理生态研究工作。
  • 基金资助:
    中国科学院知识创新工程重大项目(KZCX1-SW-19)

Effects of Soil Water Stress on Photosynthetic Charateristics of Maize

HAN Xi-ying1,2, SONG Feng-bin1, WANG Bo1,2, ZHANG Lei1,2   

  1. 1. Northeast Institute of Geography and Agricultural Ecology, Chinese Academy of Science, Changchun 130012, China;
    2. Graduate School of the Chinese Academy of Science, Beijing 100039, China
  • Received:2006-04-12 Published:2006-10-28

摘要: 采用盆栽方法,测定了土壤水分胁迫下拔节期和抽雄开花期玉米叶片光合特性。结果表明,水分胁迫下玉米叶片光合速率(Pn)、气孔导度(Gs)、蒸腾速率(Tr)和水分利用效率(WUE)的平均水平与对照相比显著降低;抽雄-开花期下降幅度大于拔节期。光合速率下降主要受非气孔因素限制。水分胁迫改变了玉米叶片光合参数日变化规律。水分胁迫下,白单9的Pn,WUE,叶片叶绿素相对含量和叶面积明显高于白单31。

关键词: 水分胁迫, 玉米, 光合特性

Abstract: Photosynthet ic characteristics of maize leaf at jointing and tasseling_anthesis stage were measured under water stress by pot experiment.The results showed that averages of photosynthetic rate(Pn),stomatal conductance(Gs),transpiration rate(Tr) and water use efficiency(WUE) decreased significantly under water stress,and the decrease at tasseling_anthesis stage was more serious than that at jointing stage.The predominant cause of restricting photosynthetic rate was non_stomatal limitation.The normal diurnal rule of every photosynthetic parameter was changed greatly under water stress.The Pn,WUE,relative content of chlorophyll and leaf area of Baidan 9 were markedly higher than that of Baidan 31 under soil water stress.

Key words: Water stress, Maize, Photosynthetic characteristics

中图分类号: 

引用本文

韩希英, 宋凤斌, 王波, 张磊. 土壤水分胁迫对玉米光合特性的影响[J]. 华北农学报, 2006, 21(5): 28-32. doi: 10.3321/j.issn:1000-7091.2006.05.008.

HAN Xi-ying, SONG Feng-bin, WANG Bo, ZHANG Lei. Effects of Soil Water Stress on Photosynthetic Charateristics of Maize[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2006, 21(5): 28-32. doi: 10.3321/j.issn:1000-7091.2006.05.008.