Abstract Burkholderia cepacia is considered as one of the most harmful soilborne pathogens of onion. Currently used chemical or biological methods for the eradication of B. cepacia from soil are not effective. The aim of the study was to evaluate the possibility of eradication of the pathogen from soil using dried leaves of celeriac (Apium graveolens L. var. rapaceum Mill. cv. Albin). The leaves were crushed and added to the soil at a dose of 0.5, 1.0 and 2.0% (w/v) in the pot experiments and 0.25 and 0.5% (w/v) in container open-air experiments. The results showed that soil amendment with celeriac wastes significantly reduced B. cepacia abundance. The detrimental effect of celeriac leaves depended on the incubation time and dosage of the material. In the laboratory experiment B. cepacia was not isolated two months after the addition of 2% celeriac to infested soil. In the container experiment, in 2017, decrease of the pathogen population was observed two months after celeriac application, in June. The decreasing tendency of the pathogen population was maintained through all experiment duration. The addition of the dried celeriac leaves caused also the changes in population of soil microorganisms, especially increase of fluorescent Pseudomonas, spore forming bacteria and actinomycetes.

中文翻译：

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芹菜废料在土壤中洋葱伯克霍尔德菌控制策略中的应用

摘要 洋葱伯克霍尔德菌被认为是洋葱最有害的土壤传播病原体之一。目前用于从土壤中根除洋葱芽孢杆菌的化学或生物方法无效。该研究的目的是评估使用芹菜干叶（Apium grayolens L. var. rapaceum Mill. cv. Albin）从土壤中根除病原体的可能性。将叶子压碎并在盆栽​​实验中以0.5、1.0和2.0%（w/v）的剂量和在容器露天实验中以0.25和0.5%（w/v）的剂量添加到土壤中。结果表明，用芹菜废料进行土壤改良显着降低了 B. cepacia 的丰度。芹菜叶的有害影响取决于材料的孵育时间和剂量。实验室实验 B. 将 2% 芹菜添加到受侵染的土壤中两个月后，没有分离到洋葱。在容器实验中，2017 年 6 月，在施用芹菜两个月后观察到病原体种群减少。病原体种群的下降趋势在整个实验期间都保持不变。添加干芹菜叶也引起土壤微生物种群的变化，特别是荧光假单胞菌、产孢菌和放线菌的增加。