华北农学报 ›› 2008, Vol. 23 ›› Issue (1): 158-162. doi: 10.7668/hbnxb.2008.01.035

所属专题: 小麦

• 论文 • 上一篇    下一篇

不同施氮量对超高产小麦灌浆期光合日变化的影响

孙旭生1, 林琪1, 刘义国1, 张玉梅1, 李玲燕1, 翟延举2   

  1. 1. 青岛农业大学 植物科技学院,山东 青岛 266109;
    2. 莱州市金海种业有限公司,山东 莱州 261400
  • 收稿日期:2007-11-12 出版日期:2008-02-28
  • 通讯作者: 林琪(1957-),男,山东威海人,教授,博士,主要从事作物高产栽培理论与技术研究。
  • 作者简介:孙旭生(1982-),男,山东烟台人,硕士,主要从事作物高产栽培理论与技术研究。
  • 基金资助:
    国家粮食丰产科技工程(2006BAD02A00)

Effects of Different Nitrogen Content on Diurual Variation of Photosynthesis in Super-high-yield Wheat at Filling Stage

SUN Xu-sheng1, LIN Qi1, LIU Yi-guo1, ZHANG Yu-mei1, LI Ling-yan1, ZHAI Yan-ju2   

  1. 1. College of Plant Science and Technology, Qingdao Agricultural University, Qingdao 266109, China;
    2. Jinhai Seed Co. Ltd. of Laizhou, Laizhou 261400, China
  • Received:2007-11-12 Published:2008-02-28

摘要: 试验研究了不同施氮量对超高产小麦灌浆期光合日变化的影响。结果表明,超高产麦田光合特性日变化是由气孔因素和非气孔因素共同作用的结果,随施氮量增加,小麦的光合特性逐渐增强,光合"午休"现象有一定程度的减缓。但过多的施氮量(纯氮375 kg/hm2)虽然有较高的光合速率,但是降低了群体叶面积指数,千粒重下降,产量降低。由此表明,氮肥对超高产小麦光合日变化有较大的调节作用,但光合作用与产量并非均呈正相关关系。

关键词: 超高产, 小麦, 灌浆期, 光合日变化

Abstract: The diurual variation of photosynthesis were studied in super2high2yield wheat under different nitrogenamounts. The results showed that both stomata limitation and non2stomata limitations resulted in the diurual variation ofthe characteristics of photosynthesis in winter wheat.As the amount of nitrogen application increased,the characteristics ofphotosynthesis were gradually reinforced and the midday depression of photosynthesis released in some degree. Althoughthe photosynthetic rates were reinforced by excessive nitrogen content(pure nitrogen 375 kg/hm2),the leaf area index ofcolony,1 0002grain weight and the yields decreased. So,it showed that nitrogen fertilizer could regulate the diurual varia2tion of photosynthesis in some degree,but the photosynthesis was not positively related to the wheat yield.

Key words: Super-high yield, Wheat, Grain filling stage, The diurual variation of photosynthesis

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引用本文

孙旭生, 林琪, 刘义国, 张玉梅, 李玲燕, 翟延举. 不同施氮量对超高产小麦灌浆期光合日变化的影响[J]. 华北农学报, 2008, 23(1): 158-162. doi: 10.7668/hbnxb.2008.01.035.

SUN Xu-sheng, LIN Qi, LIU Yi-guo, ZHANG Yu-mei, LI Ling-yan, ZHAI Yan-ju. Effects of Different Nitrogen Content on Diurual Variation of Photosynthesis in Super-high-yield Wheat at Filling Stage[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2008, 23(1): 158-162. doi: 10.7668/hbnxb.2008.01.035.

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