选择镰刀菌用驹田或植选1号培养基,在米饭培养基上划分镰刀菌种群,用试管法或盆栽作致病性测定,以检测土壤中棉花枯萎病致病菌。试验结果表明,该致病菌主要在奶油色、淡青莲及深紫色菌群中,分别占21.2%,11.5%,4.5%。陕西杨陵(1985)棉枯萎病病圃(发病株率85%以上),播种前10公分土层内每克干土含菌量为2236～2576个菌落。使用这一定量检测程序比单独使用选择性培养基提高了精确度,方法简便易行。 Select Fusarium with Komata or Planting 1 medium, divided in the Fusarium rice medium, with tube or potted for pathogenicity test to detect soil Fusarium wilt pathogens. The test results showed that the pathogens mainly accounted for 21.2%, 11.5% and 4.5% of the creamy, pale green and deep purple bacteria groups, respectively. Shaanxi Yangling (1985) cotton blight disease nursery (incidence of more than 85%), 10 cm before sowing soil moisture per gram of dry soil for 2236 ~ 2576 colonies. The use of this quantitation assay improves accuracy over the use of selective media alone, and the method is simple and easy to use.