华北农学报 ›› 2008, Vol. 23 ›› Issue (2): 9-11. doi: 10.7668/hbnxb.2008.02.002

所属专题: 小麦

• 论文 • 上一篇    下一篇

两种穗型冬小麦品种旗叶光合特性和水分利用对光强的响应

杨文平1,2, 郭天财1, 刘胜波1, 朱云集1, 王晨阳1, 王永华1   

  1. 1. 河南农业大学, 国家小麦工程技术研究中心, 河南, 郑州, 450002;河南科技学院, 河南, 新乡, 453003;
    2. 河南农业大学, 国家小麦工程技术研究中心, 河南, 郑州, 450002
  • 收稿日期:2007-10-12 出版日期:2008-04-28
  • 通讯作者: 郭天财(1953-).男.河南济源人.教授.博士生导师.主要从事小麦高产优质栽培的研究。
  • 作者简介:杨文平(1971-),男,河南淇县人,在读博士,主要从事小麦生理生态方面的研究.
  • 基金资助:
    “十一五”国家科技支撑计划重大项目(2006BAD02A07);河南省重大科技攻关项目(0522010100)

Light Intensity on Flag Leaf Photosynthetic Characteristics and Water Use of Two Spike-type Cultivars of Winter Wheat

YANG Wen-ping1,2, GUO Tian-cai1, LIU Sheng-bo1, ZHU Yun-ji1, WANG Chen-yang1, WANG Yong-hua1   

  1. 1. Henan Agricultural University, National Wheat Engineering Technological Research Center, Zhengzhou 450002, China;
    2. Henan Institute of Science and Technology, Xinxiang 453003, China
  • Received:2007-10-12 Published:2008-04-28

摘要: 以超高产小麦兰考矮早八和豫麦49为材料,研究了开花期旗叶光合与水分利用对光强的响应。结果表明:开花期,随着光强的增加,旗叶光合速率(Pn)、气孔导度(Cond)、蒸腾速率(Tr)和水分利用率(WUE)均表现不同程度增大,超过一定的光强后反而下降;但胞间CO2浓度(Ci)随光强的增加而降低。与豫麦49相比,兰考矮早八在较高光强下旗叶仍表现出较高的光合特性与水分利用。

关键词: 冬小麦, 光合特性, 水分利用, 光强

Abstract: Flag leaf photosynthetic characteristics and water use were investigated in different light intensity in two spike-type wheat(Triticum aestivum L.)varieties,Lankaoaizao 8 and Yumai 49.The results showed that,at anthesis,with increasing light intensity,there were increases in photosynthetic rate,stomatal conductance,transpiration rate and water use efficiency.They would decrease if light intensity was increased to a limited light intensity.But intercellular CO2 concentration decreased with increasing light intensity.Compared with Yumai 49,flag leaf of Lankaoaizao 8 had higher photosynthetic characteristics and water use in higher light intensity.

Key words: Winter wheat, Photosynthetic characteristics, Water use, Light intensity

中图分类号: 

引用本文

杨文平, 郭天财, 刘胜波, 朱云集, 王晨阳, 王永华. 两种穗型冬小麦品种旗叶光合特性和水分利用对光强的响应[J]. 华北农学报, 2008, 23(2): 9-11. doi: 10.7668/hbnxb.2008.02.002.

YANG Wen-ping, GUO Tian-cai, LIU Sheng-bo, ZHU Yun-ji, WANG Chen-yang, WANG Yong-hua. Light Intensity on Flag Leaf Photosynthetic Characteristics and Water Use of Two Spike-type Cultivars of Winter Wheat[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2008, 23(2): 9-11. doi: 10.7668/hbnxb.2008.02.002.

使用本文

0
    /   /   推荐 /   导出引用

链接本文: http://www.hbnxb.net/CN/10.7668/hbnxb.2008.02.002

               http://www.hbnxb.net/CN/Y2008/V23/I2/9