| 水氮互作对小麦旗叶光合特性、籽粒产量及氮素和水分利用率的影响 |
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| 引用本文： | 王小燕,王东,于振文.水氮互作对小麦旗叶光合特性、籽粒产量及氮素和水分利用率的影响[J].干旱地区农业研究,2009,27(6):17-22. |
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| 作者姓名： | 王小燕 王东 于振文 |
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| 作者单位： | 王小燕(长江大学农学院,湖北,荆州,434025;山东农业大学农业部作物生理生态与栽培重点开放实验室,山东,泰安,271018);王东,于振文(山东农业大学农业部作物生理生态与栽培重点开放实验室,山东,泰安,271018) |
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| 基金项目： | 国家自然科学基金项目，农业部现代农业小麦产业技术体系项目 |
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| 摘 要： | 在高产条件下,研究了水氮互作对小麦旗叶光合特性、籽粒产量及水分和氮素利用率的影响.结果表明:(1)同一灌水处理下,旗叶光合速率、蔗糖磷酸合成酶活性、蔗糖含量和籽粒产量均随施氮水平的增加而提高,千粒重、氮素收获指数和氮素表观利用率随施氮水平的提高而降低.(2)同一施氮水平下,W1(底墒水+拔节水+开花水)、W2(底墒水+冬水+拔节水+开花水)和W3(底墒水+冬水+拔节水+开花水+灌浆水)处理的旗叶光合速率、蔗糖磷酸合成酶活性和蔗糖含量在开花后0～14 d无显著差异;开花21 d后,W3处理显著高于W1和W2处理.(3)在N0(不施氮)和N1(180 kg/hm2)水平下,W1和W2处理的籽粒产量显著低于W3处理,在N2(240 kg/hm2)水平下则反之;氮素表观利用率和氮素生产效率为W0
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| 关 键 词： | 小麦 水氮互作 光合特性 籽粒产量 水分利用率 氮素利用效率 |
Interactions of water management and nitrogen application on photosynthetic character and kernel yield and nitrogen use efficiency |
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| WANG Xiaoyan,WANG Dong,YU Zhenwen.Interactions of water management and nitrogen application on photosynthetic character and kernel yield and nitrogen use efficiency[J].Agricultural Research in the Arid Areas,2009,27(6):17-22. |
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| Authors: | WANG Xiaoyan WANG Dong YU Zhenwen |
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| Institution: | WANG Xiao-yan1,2,WANG Dong2,YU Zhen-wen2(1.College of Agriculture,Yangtze University,Jingzhou,Hubei 434025,China,2.Key Laboratory of Crop Physiology,Ecology and Production,Ministry of Agriculture,Shandong Agricultural University,Tai'an,Shandong 271018,China) |
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| Abstract: | The Interactions of water management and nitrogen application on photosynthetic character and kernel yield and nitrogen use efficiency and water use efficiency in the high-yielding conditions were studied.The results showed that:(1) In the same irrigation rate,the photosynthetic rate,sucrose-phosphate synthase(SPS) activity and sucrose content in flag leaf and kernel yield increased,but kernel weight,nitrogen(N) harvest index and N apparent recovery rate decreased as the nitrogen application rate increased.... |
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| Keywords: | wheat interactions of water management and nitrogen application photosynthetic character kernel yield water use efficiency nitrogen use efficiency |
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