Journal of Integrative Agriculture ›› 2018, Vol. 17 ›› Issue (04): 901-910.DOI: 10.1016/S2095-3119(17)61851-3

所属专题: 植物细菌真菌合辑Plant Bacteria/Fungus

• 论文 • 上一篇    下一篇

  

  • 收稿日期:2017-09-04 出版日期:2018-04-20 发布日期:2018-04-16

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

ZOU Ya-fei1, QIAO Hong-bo2, CAO Xue-ren3, Liu Wei1, FAN Jie-ru1, SONG Yu-li4, WANG Bao-tong5, ZHOU Yi-lin1    

  1. 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
    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
  • Received:2017-09-04 Online:2018-04-20 Published:2018-04-16
  • Contact: Correspondence ZHOU Yi-lin, Tel: +86-10-62815946, Fax: +86-10-62895365, E-mail: ylzhou@ippcaas.cn
  • About author:ZOU Ya-fei, E-mail: zouyafei@caas.cn;
  • Supported by:

    This work was financially supported by the National Natural Science Foundation of China (31271987), the National Key Research and Development Program of China (2016YFD0300702), the Special Fund for Agro-scientific Research in the Public Interest, China (201303016). Thanks to the platform support of Key Laboratory of Integrated Pest Management on Crops, Ministry of Agriculture, P.R.China.

Abstract: Blumeria graminis f. sp. tritici, the pathogen that causes wheat powdery mildew, is one of the most important diseases affecting wheat production in China, and the oversummering is the key stage of wheat powdery mildew epidemic.  The more oversummering regionalization of wheat powdery mildew has played an important role in disease prediction, prevention and control.  In this study, we analyzed the correlation between oversummering data of wheat powdery mildew and the meteorological factors over the past years, and determined that temperature was the key meteorological factor influencing oversummering 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.  This regionalization 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 region based on Model 26.2 were consistent with the actual survey of the more summer wheat powdery mildew.  Wheat powdery mildew oversummering regions in China mainly cover mountainous or high-altitude areas, and these regions form a narrow north-south oversummering zone.  Oversummering regions of wheat powdery mildew is mainly concentrated in the high-altitude wheat growing areas, including northern and southern Yunnan, northwestern Guizhou, northern and southern Sichuan, northern and southern Chongqing, eastern and southern 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.

Key words: wheat powdery mildew ,  digital elevation model ,  oversummering regionalization ,  geographic information system