花生青枯病(Pseudomonas solanacearum)是一种世界性花生病害,也是我国花生产区一个严重病害,其中以华南地区旱坡地为害最重。轻病地一般减产10—20％,重病地减产可达50％以上,甚至全部失收。水田花生过去发病较少,近年发病率亦逐渐增加。青枯病的为害,已成为发展我省花生生产的一个突出障碍。目前,花生青枯病的防治除采用延长轮作周期外,无其他有效方法。国内外专家一致认为:对该病最经济有效的解决办法是选用抗病高产品种。六十年代初开始,广东省农科院经作所和植保所的有关人员对该项工作进行了研究,曾先后鉴定了1000多份材料,筛选出一批 Peanut bacterial wilt (Pseudomonas solanacearum) is a worldwide peanut disease and is also a serious disease in the flower-producing area of ​​China, of which the most serious is on the sloping land in South China. Slightly reduced by 10-20% in general, seriously ill to cut more than 50%, or even lost. Paddy peanut less incidence in the past, the incidence in recent years also gradually increased. The damage of bacterial wilt has become a prominent obstacle in the development of peanut production in our province. At present, the prevention and control of peanut bacterial wilt is no effective method except prolonging the rotation cycle. Experts at home and abroad agreed that the most economical and effective solution to the disease is to use high-yielding disease-resistant varieties. The beginning of the sixties, the Guangdong Provincial Academy of Agricultural Economics and Plant Protection Institute of the relevant personnel conducted a study of this work, has identified more than 1,000 materials, a number of screening