中国农业气象

• 论文 • 上一篇    下一篇

华北平原不同基因型夏玉米水分-产量响应关系

庄严;梅旭荣;龚道枝;郝卫平;栗雨勤;柳斌辉;武雪萍;   

  1. 中国农业科学院农业环境与可持续发展研究所/农业部旱作节水农业重点开放实验室;中国农业科学院农业资源与农业区划研究所;河北省农林科学院旱作农业研究所;
  • 出版日期:2010-02-10 发布日期:2010-02-10
  • 基金资助:
    中央基本科研业务费项目“小麦、玉米生物性节水基础研究”;; 国家自然科学基金项目(30871447);; 国家科技支撑计划项目(2006BAD29B02,2007BAD88B03);; 国际原子能机构项目(CRP-14235);; 中央基本科研业务费项目“不同基因型夏玉米水肥效应及模型模拟研究”

Yield Response of Different Genotypic Maize to Water in North China Plain

ZHUANG Yan1,2,MEI Xu-rong1,GONG Dao-zhi1,HAO Wei-ping1,LI Yu-qing3, LIU Bin-hui3,WU Xue-ping2(1.Institute of Environment and Sustainable Development in Agriculture,CAAS /Key Laboratory of Dryland Agriculture,MOA,Beijing 100081,China;2.Institute of Agricultural Resources and Regionalization,Beijing 100081;3.Institute of Dryland Farming and Water-saving Agriculture,Hebei Provincial Agriculture and Forestry Academy,Hengshui 053000)   

  • Online:2010-02-10 Published:2010-02-10

摘要: 对两个耗水和产量特性不同的夏玉米品种即鲁单981和郑单958,在不同生育阶段进行不同程度的水分胁迫试验,分析了作物耗水量、产量及其性状和阶段水分-产量响应系数(Ky)。结果表明,夏玉米各个生育阶段的水分亏缺对产量的影响不同,开花期的水分亏缺对产量影响最大,而拔节期的最小。品种间水分亏缺对产量的影响也存在差异,开花期最明显,此期两品种产量响应系数分别为1.4和1.2。

关键词: 夏玉米, 水分-产量响应系数, 产量性状

Abstract: An experiment was conducted to study the effects of water deficits in the different growing stages,and to analyze the water use,yield and its components,and yield response factor(Ky) of two maize varieties,Ludan 981 and Zhengdan 958.The results showed that effects of water deficits on yield in every stage were different.The highest effect was in the flowering stage,while the lowest effect was in the jointing stage.There was significant difference between yield response factors of both genotypes during flowering stage,which were 1.40 and 1.20 respectively.

Key words: Maize, Maize, Yield response factor, Yield components