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《Journal of Agricultural University of Hebei》 2001-02
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Study on epidemic and control of potato late blight ( Phytophthora infestans (Mont.) de Bary)

YANG Shao yong 1, CAO Ke qiang 2 (1. Tanggu Exit & Entrance Inspection and Quarantine Bureau, Tianjin 300456,China; 2.College of Plant Protection,Agricultural University of Hebei,Baoding 071001, China)  
Field trials were conducted in 1997 to evaluate crucial weather conditions for potato late blight epidemic.Two trials were performed to prove latent periods on different varieties and infection rate at Reckenholz.Sporangia were found on the leaflets if the accumulated temperature was above 2,346 5 degree hours in the potato. Temperature is a very important factor for the epidemic of disease. The key condition for disease infection was a temperature over 10℃ and relative humidity of more than 90% in successive 6 hours. Rainfall played an important role for disease dispersal. Better disease controls were received by following PhytoPRE and CWC model in field trials.
【CateGory Index】: S435.32
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【Co-references】
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1 ZHU Jie hua 1, WU Ning feng 2 (1. College of Plant Pathology, Agricultural University of Hebei, Baoding 071001, China; 2. Biotechnology Research Center, Chinese Academy of Agricultural Sciences, Beijing 100081, China);Analysis of correlation between A2 mating type and DNA polymorphisms of Phytophthora infestans using RAPD[J];Journal of Agricultural University of Hebei;2001-02
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3 YANG Zhi-Hui1 ZHU Jie-Hua1 GUO Qiang2 ZHANG Zhi-Ming1 (1Department of Plant Pathology, Agricultural University of Hebei, Baoding 071001) (2Hebei Entry-Exit Inspection Quarantine Bureau, Shijiazhuang, Hebei 050071);PRELIMINARY STUDY ON BIOLOGY OF SINGLE-ZOOSPORE CULTURES IN PHYTOPHTHORA INFESTANS[J];Mycosystema;2003-01
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