文档介绍：磷酸对天竺葵青枯病的控制
主要内容：
一：前言
二：材料与方法
三：结果与讨论
一、前言
Once it becomes established in a susceptible crop,southern bacterial wilt, caused by Ralstonia solanacearum is very hard to eradicate. There are two primary avenues by which R. solanacearum moves and gains access to crops: one is via water, and the other is through infected propagation materials.
由青枯菌引起的南方青枯病一旦侵染敏感作物，就很难根除。青枯菌侵染作物的两种途径是：通过水流侵染通过被侵染物质传播。
To combat bacterial wilt, resistant cultivars have been recommended in areas of the world where the pathogen is endemic .In susceptible greenhousegrown crops, only strict sanitation has been successful in prohibiting plant infestation.
为了抵抗地方性青枯病，世界上很多地方都推荐种植抗性作物。种植在温室的敏感作物只有控制环境卫生才能抑制其侵染。
Geraniums are susceptible to races 1 and 3 of R. solanacearum . Most geraniums produced in the world are vegetatively propagated in Guatemala, Costa Rica,Columbia, China, and Kenya. In all these locations, endemic populations of R. solanacearum exist . There are no known treatments that are effective in protecting geranium plants.
天竺葵对于青枯菌属1和3是敏感的，天竺葵广泛种植在世界各地如危地马拉，哥斯达黎加，哥伦比亚，中国和肯尼亚。但这些地方都存在地方性青枯病，目前还没有有效的方法保护天竺葵作物。
Thus, the objective of this research was to determine if geranium plants could be protected from infection with applications of selected bactericides and chemicals.
因此本实验的目的就是对天竺葵作物施以筛选过的细菌和化学药品来验证是否能保护作物免受侵染。
二、材料与方法 1 Screening of products.
A race 1 (biovar 1) strain (R1B1) isolated in Florida (P673) from pothos (Epipremnum aureum (Linden & Andre) Blunt.) was used in the initial screening of prospective products. The isolates from pothos are of Central American origin and possess a broader host range than strains endemic in Florida.
在弗罗里达的黄金葛里分离出来的R1B1（P673）被用于开始预期产品的筛选。它是在在美国中部分离出来的菌属比弗罗里达的地方性菌属更原始，且具有更广泛的寄主。
Promising products were later tested in environmental chambers with a race 3 (biovar 2) strain (R3B2) isolated from geranium (UW551), provided by C. Allen, University of Wis-consin.
更多的产品将会用R3B2 (UW551)在环境检测箱中进行检测，R3B2有威斯康辛大学的艾伦提供。