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| Assessment of Risk of Establishment of Wheat Dwarf Bunt (Tilletia controversa) in China |
| JIA Wen-ming, ZHOU Yi-lin, DUAN Xia-yu, LUO Yong, DING Sheng-li, CAO Xue-ren , Bruce D LFitt |
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.Agricultural College, Shihezi University, Shihezi 832003, P.R.China
3.Department of Plant Pathology, China Agricultural University, Beijing 100193, P.R.China
4.University of Hertfordshire, Hatfield, Hertfordshire AL10 9AB, UK |
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摘要 Wheat dwarf bunt, caused by Tilletia controversa Kühn (TCK), is an important quarantine wheat disease throughout the world. Based on published research results of the biology and the epidemiology of the disease, the main factors including temperature, humidity, snow cover, and their parameters relating to teliospore germination, infection and epidemics of TCK were determined. The geophytopathological models for the risk analysis of wheat dwarf bunt establishment were modified. Fifty-year meteorologic data from about 500 weather stations in China were used to calculate the probabilities of TCK establishment in different geographic sites with the models. The map that displays the establishment risk of TCK in winter wheat growing regions in China was generated by using geographical information system (GIS). The zones showing high, moderate, low, and very low, including no risk, of TCK establishment accounted for 27.33, 27.69, 38.12, and 6.86% of total winter wheat growing areas in China, respectively. These results will provide useful information to formulate quarantine regulations and wheat importation policy in China.
Abstract Wheat dwarf bunt, caused by Tilletia controversa Kühn (TCK), is an important quarantine wheat disease throughout the world. Based on published research results of the biology and the epidemiology of the disease, the main factors including temperature, humidity, snow cover, and their parameters relating to teliospore germination, infection and epidemics of TCK were determined. The geophytopathological models for the risk analysis of wheat dwarf bunt establishment were modified. Fifty-year meteorologic data from about 500 weather stations in China were used to calculate the probabilities of TCK establishment in different geographic sites with the models. The map that displays the establishment risk of TCK in winter wheat growing regions in China was generated by using geographical information system (GIS). The zones showing high, moderate, low, and very low, including no risk, of TCK establishment accounted for 27.33, 27.69, 38.12, and 6.86% of total winter wheat growing areas in China, respectively. These results will provide useful information to formulate quarantine regulations and wheat importation policy in China.
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Received: 15 May 2012
Accepted:
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| Fund: This study was supported by the National Basic Research and Development Program of China (2009CB119200, 2002CB111405), and the project from Ministry of Agriculture of China. |
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Corresponding Authors:
Correspondence ZHOU Yi-lin, Tel: +86-10-62815946, E-mail: ylzhou@ippcaas.cn
E-mail: ylzhou@ippcaas.cn
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Cite this article:
JIA Wen-ming, ZHOU Yi-lin, DUAN Xia-yu, LUO Yong, DING Sheng-li, CAO Xue-ren , Bruce D LFitt.
2013.
Assessment of Risk of Establishment of Wheat Dwarf Bunt (Tilletia controversa) in China. Journal of Integrative Agriculture, 12(1): 87-94.
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