| 起身期断根对冬小麦后期光合和生长的影响 |
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| 引用本文： | 刘子会,柳斌辉,李运朝,郭秀林.起身期断根对冬小麦后期光合和生长的影响[J].华北农学报,2007,22(5):189-190. |
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| 作者姓名： | 刘子会 柳斌辉 李运朝 郭秀林 |
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| 作者单位： | 河北省农林科学院遗传生理研究所,河北,石家庄,050051 |
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| 基金项目： | 河北省自然科学基金(C2004000728)，国家“粮食丰产科技工程”项目河北省子课题(2004BA520A07)，河北省科技厅抗旱节水实验室开放基金(0508021-HBKLA-05) |
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| 摘 要： | 通过盆栽小麦起身期断根试验,研究了断初生根和部分次生根对小麦后期光合和生长的影响。结果表明:断初生根和部分次生根,均降低了断根初期小麦光合速率,而促进后期光合速率;同时,断根降低了成熟期小麦根系干质量、地上部干质量以及产量;断初生根比断部分次生根对小麦的影响更明显。
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| 关 键 词： | 断根 光合速率 起身期 小麦 |
| 文章编号： | 1000-7091（2007）05-0189-02 |
| 修稿时间： | 2007-03-05 |
Effect of Roots-cutting in Double Ridge Stage on the Photosynthetic Rate and Later Growth of Winter Wheat |
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| LIU Zi-hui,LIU Bin-hui,LI Yun-chao,GUO Xiu-lin.Effect of Roots-cutting in Double Ridge Stage on the Photosynthetic Rate and Later Growth of Winter Wheat[J].Acta Agriculturae Boreali-Sinica,2007,22(5):189-190. |
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| Authors: | LIU Zi-hui LIU Bin-hui LI Yun-chao GUO Xiu-lin |
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| Institution: | Institute of Genetics and Physiology, Hebei Academy of Agriculture and Forestry Sciences,Shijiazhuang 050051,China |
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| Abstract: | The effects of root-cutting in double ridge stage on the photosynthetic rate and later growth of winter wheat(Shi 8 and Heng 7228)growed in the pot were investigated.The results showed that: Both primary root-cutting and partial adventitious root-cutting decreased the photosynthetic rate after treated for 2 d,but increased it after treated for 20 d;At the same time,dry weight of root,biomass above the ground,and yield of maturity were all reduced;the effects of primary root-cutting on the winter wheat was greater than that of adventitious root-cutting. |
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| Keywords: | Root-cutting Photosynthetic rate Double ridge stage Winter wheat |
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