Study on the pathogenity of Sclerotinia sclerotiorum and resistance of oilseed rape to stem rot
文献类型： 会议论文
第一作者： Yong LIU
作者： Yong LIU 1 ; Yinze NIU 2 ; Volker H. Paul 3 ;
作者机构： 1.Institute of Plant Protection, Sichuan Academy of Agricultural Sciences, No 20 Jing Ju Si Road Chengdu, Sichuan, 610066, China
2.Department of Agriculture, Sichuan University of Agriculture, Yaan, Sichuan, 625014, China
3.Laboratory for Biotechnology and
关键词： Brassica napus L.;Stem rot;Sclerotinia sclerotiorum;Pathogenicity;Resistance
会议名称： International Rapeseed Congress; 20070326-30; Wuhan(CN)
主办单位：
页码： 1370-1372
摘要： Resistant breeding is an environmental benefit and pollution free control strategy against stem rot. In this paper, 41 isolates of Sclerotinia sclerotiorum isolated from rapeseed, tobacco, cabbage, potato, linseed, sunflower which collected from 7 countries,including China, Denmark, Germany, France, Holland, Poland and Sweden, where the disease incidences, growing years were different. Among them, 12 isolates were isolated directly by a single-ascospore from a single sclerotium. The susceptibility of 70 oilseed rape cultivars or lines against stem rot was evaluated under 12℃～18℃ and 100% RH. The results showed that the length of lesions varied from 0 mm to 70 mm among 41 S. sclerotiorum isolates, 3 of 41 isolates were almost inefficient infestation. Meanwhile, the length of lesions varied from 22 mm to 76 mm among the different cultivars and lines. Among 66 cultivars and lines bred in China, 15 performed good tolerance to stem rot. The high aggressive isolates should be used in laboratory resistance tests against stem rot of oilseed rape.
分类号： [ "S565.4" , "S565.4"]
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