首页> 中文期刊> 《农业科学学报:英文版》 >Regionalization of wheat powdery mildew oversummering in China based on digital elevation

Regionalization of wheat powdery mildew oversummering in China based on digital elevation

         

摘要

Blumeria graminis f. sp. tritici, the pathogen that causes wheat powdery mildew, is one of the most important diseasesaffecting wheat production in China, and the oversummering is the key stage of wheat powdery mildew epidemic. The moreoversummering regionalization of wheat powdery mildew has played an important role in disease prediction, preventionand control. In this study, we analyzed the correlation between oversummering data of wheat powdery mildew and themeteorological factors over the past years, and determined that temperature was the key meteorological factor Influencingoversummering of wheat powdery mildew. The average temperature at which wheat powdery mildew growth was terminated(26.2~C) was used as the threshold temperature to regionalize the oversummering range of wheat powdery mildew. Thisregionalization was done using the GIS ordinary Kriging method combined with the Digital Elevation model (DEM) of China.The results showed that annual probability of oversummering regionbased on Model 26.2 were consistent with the actualsurvey of the more summer wheat powdery mildew. Wheat powdery mildew oversummering regions in China mainly covermountainous or high-altitude areas, and these regions form a narrow north-south oversummering zone. Oversummeringregions of wheat powdery mildew is mainly concentrated in the high-altitude wheat growing areas, including northern andsouthern Yunnan, northwestern Guizhou, northern and southern Sichuan, northern and southern Chongqing, eastern andsouthern Gansu, southeastern Ningxia, northern and southern Shaanxi, central Shanxi, western Hubei, western Henan,northern and western Hebei, western Liaoning, eastern Tibet, eastern Qinghai, western Xinjiang and other regions of China.

著录项

  • 来源
    《农业科学学报:英文版》 |2018年第4期|P.901-910|共10页
  • 作者单位

    [1]State Key Laboratory for Biology of Plant Diseases and Insect Pests;

    Institute of Plant Protection;

    Chinese Academy of Agricultural Sciences;

    Beijing 100193;

    P.R. China;

    [2]College of Information and Management Science;

    Henan Agricultural University;

    Zhengzhou 450002;

    P.R. China;

    [3]Environment and Plant Protection Institute;

    Chinese Academy of Tropic Agricultural Sciences/Key Laboratory of Integrated Pest Management on Tropical Crops;

    Ministry of Agriculture;

    Haikou 571101;

    P.R.China;

    [1]State Key Laboratory for Biology of Plant Diseases and Insect Pests;

    Institute of Plant Protection;

    Chinese Academy of Agricultural Sciences;

    Beijing 100193;

    P.R. China;

    [1]State Key Laboratory for Biology of Plant Diseases and Insect Pests;

    Institute of Plant Protection;

    Chinese Academy of Agricultural Sciences;

    Beijing 100193;

    P.R. China;

    [4]Institute of Plant Protection;

    Henan Academy of Agricultural Sciences;

    Zhengzhou 450002;

    P.R. China;

    [5]College of Plant Protection;

    Northwest A&F University;

    Yangling 712100;

    P.R;

    China;

    [1]State Key Laboratory for Biology of Plant Diseases and Insect Pests;

    Institute of Plant Protection;

    Chinese Academy of Agricultural Sciences;

    Beijing 100193;

    P.R. China;

  • 原文格式 PDF
  • 正文语种 CHI
  • 中图分类 农业科学;
  • 关键词

    wheat; powdery; mildew; digital; elevation; model; oversummering; regionalization; geographic; information; system;

    机译:小麦;粉;霉;数字;海拔;模型;盛夏;区域化;地理;信息;系统;
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