文献类型： 会议论文

第一作者： Li Jiping

作者： Li Jiping ¹ ; Li Minquan ¹ ; Hui Nana ² ; Wang Li ² ; Ma Yongqiang ² ; Qi Yonghong ² ; Li Jianjun ² ; Li Qingqing ² ; Zhou Tianwang ² ;

作者机构： 1.College of Grassland Science, Gansu Agricultural University

2.Institute of Plant Protection, Gansu Academy of Agricultural Sciences

关键词： Potato late blight;Overwintering of oospore;Survival;Germination

会议名称： International Conference on Sustainable Energy and Environmental Engineering

主办单位：

页码： 2274-2279

摘要： Survival and germination of overwintering oospores of two strains from Gansu,China compared with two standard from Wageningen, the Netherlands of Phytophthora infestans were determined in 2010-2011. It was found that compatible mating strains of P. infestans A1 and A2 produce oospores abundantly in paired cultures on tomato-rye agar medium. The survival rate of overwintering was ranged from19.57% to 24.59%. The germination rate of overwintering was ranged from 3.58% to 8.49%, and there were no significant differences in germination rate of oospores between alternating light at day/night and whole darkness at day/night. Furthermore, the soil extract liquid was more suitable for oospore germination than distilled water.

分类号： x3-53