title: [Population fluctuation of main pathogens and their antagonistic bacteria in cucumber rhizosphere].
abstract: The investigation on the population fluctuation of main pathogens Pythium spp. and Fusarium oxysporum f. cucumerinum in the rhizosphere of four cucumber varieties showed that there was a significant difference in population number of pathogens for different cucumber varieties and for different growth stages of the same variety, which was in accordance with the regular disease incidence pattern. The population number of Pythium spp. was significantly higher at cucumber creeping stage than at its other growth stages, while that of Fusarium oxysporum f. sp. cucumerinum was the highest at cucumber principal-fruiting stage. There was a closer positive relationship between two test pathogens and their antagonistic bacteria, with the correlation coefficient being 0.95 and 0.81, respectively.
authors.affiliation: Department of Plant Protection, Zhejiang University, Hangzhou 310029, China. ljg422@eyou.com
authors.forename: Jiangen
authors.initials: J
authors.lastname: Liang
authors.forename: Bingxin
authors.initials: B
authors.lastname: Zhang
authors.forename: Jingquan
authors.initials: J
authors.lastname: Yu
authors.forename: Jiang
authors.initials: J
authors.lastname: Shi
authors.forename: Zhenyu
authors.initials: Z
authors.lastname: Chen
mesh_terms: D000898:Antibiosis / Q000502:physiology*; D018553:Cucumis sativus / Q000254:growth & development / Q000382:microbiology*; D010935:Plant Diseases / Q000382:microbiology*; D018517:Plant Roots / Q000382:microbiology*; D012988:Soil Microbiology