全国棉花枯萎病综合防治协作组认为:继72—73年全国棉花枯萎病菌生理型联合试验之后,近十年间,我国各主要棉区的生产,特别是抗病品种处的推广使用有了新的变化,这种变化因素对以土壤传播为主的病原菌——棉枯萎病菌变异的影响有必要进行更深入的研究。我们于1980年春在武功西北农学院进行了全国棉枯萎病菌生理型第三次联合试验。本次试验对盘栽土壤采用高压蒸气灭菌,减少了根病的干扰。供试菌种均采用单孢 The National Cotton Fusarium Integrated Control Group believes that following the 72-73 National Fusarium oxysporum f.sp. physiological test, there has been a new development in the production and especially the use of resistant varieties at all major cotton areas in China Changes, this change in the soil-based transmission of the main pathogen bacteria - Fusarium wilt bacteria mutation need to conduct a more in-depth study. In the spring of 1980, we conducted the third joint experiment on the physiological type of Fusarium oxysporum f. The test on the plateau soil using high-pressure steam sterilization, reducing the root cause of interference. Test species are used single spore