华北农学报 ›› 2010, Vol. 25 ›› Issue (1): 165-169. doi: 10.7668/hbnxb.2010.01.033

所属专题: 小麦

• 论文 • 上一篇    下一篇

种植密度对小麦石新828光合特性及产量的调控效应

毕常锐1, 白志英1, 李存东2, 郑金风1, 唐光雷2   

  1. 1. 河北农业大学,生命科学学院, 河北保定 071001;
    2. 河北农业大学,农学院, 河北保定 071001
  • 收稿日期:2009-11-25 出版日期:2010-02-28
  • 通讯作者: 白志英(1967-),女,河北正定人,教授,博士生导师,主要从事小麦栽培生理方面的研究;李存东(1964-),男,河北清河人,教授,博士生导师,主要从事作物栽培生理方面的研究.
  • 作者简介:毕常锐(1980-),女,河北易县人,硕士,主要从事小麦栽培生理方面的研究.
  • 基金资助:
    "十一五"国家粮食丰产科技工程子专题(2006BAD02A08);河北省自然基金项目(C2008000341)

Effects of Planting Density on Photosynthetic Characteristics and Grain Yield of a Wheat Cultivar Shixin828

BI Chang-rui11, BAI Zhi-ying11, LI Cun-dong22, ZHENG Jin-feng11, TANG Guang-lei22   

  1. 1. College of Life Science, Hebei Agricultural University, Baoding 071001, China;
    2. College of Agronomy, Hebei Agricultural University, Baoding 071001, China
  • Received:2009-11-25 Published:2010-02-28

摘要: 本试验于大田条件下,研究了种植密度对冬小麦品种石新828在适晚播情况下生育后期旗叶光合特性及产量的调控效应.设置4个密度水平处理;利用CI-340光合测定系统和FMS2型脉冲调制式荧光仪分别测定了光合特性的相关指标.试验结果表明,种植密度对石新828生育后期光合特性及产量的影响显著;每公顷基本苗330×104处理的旗叶叶绿素(Chl)含量、净光合速率(Pn)、PS II 潜在活性(Fv/Fo)及其最大光化学效率(Fv/Fm)均在生育后期始终表现出明显优势,且产量显著高于其他处理;每公顷基本苗210×104和270×104处理由于群体相对较小,表现出对轻度干旱逆境的脆弱性,390×104由于群体相对较大,封闭的小气候影响了个体的发育,最终均导致了产量的降低.小麦石新828在适晚播条件下,适宜种植密度为330×104基本苗/公顷.

关键词: 小麦, 种植密度, 光合特性, 产量

Abstract: A field experiment was conducted to evaluate photosynthetic characteristics and grain yield in different planting densities of a winter wheat cultivar Shixin828 with sowing suitable late.It was studied under four different density levels;The photosynthetic characteristicsts were measured using CI-340 portable photosynthesis system and FMS-2 fluorescence monitoring system.The results indicated that the dsnsity can remarkably influence the Photosynthesis characteristies of flag leaf and yield level.The 330×104 basis seedlings per ha treatment had apparent advantages in chlorophyll content,photosynthesis rate,PSⅡpotential activity(Fv/Fo)and the maximal quantum efficiency of PSⅡphotochemistry(Fv/Fm)of the flag leaf at late growth period and the grain yield of it was higher than that of the others significantly.The 210×104 and 270×104 basis seedlings per ha treatments represent franfibility for gently drought as a result of less colony and the 330×104 basis seedlings per ha treatment influence individual growth with close microclimate as a result of great colony,both above reducing yield.The highest grain yield was observed in the treatment with 330×104 basis seedlings per ha applied.

Key words: wheat, Planting density, Photosynthetic characteristics, Grain yield

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引用本文

毕常锐, 白志英, 李存东, 郑金风, 唐光雷. 种植密度对小麦石新828光合特性及产量的调控效应[J]. 华北农学报, 2010, 25(1): 165-169. doi: 10.7668/hbnxb.2010.01.033.

BI Chang-rui1,BAI Zhi-ying1,LI Cun-dong2,ZHENG Jin-feng1,TANG Guang-lei2. Effects of Planting Density on Photosynthetic Characteristics and Grain Yield of a Wheat Cultivar Shixin828[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2010, 25(1): 165-169. doi: 10.7668/hbnxb.2010.01.033.

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