College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, China.
Alberta Plant Health Lab, Alberta Agriculture and Irrigation, Edmonton, Alberta T5Y 6H3, Canada.
Plant Dis. 2023 Dec;107(12):3731-3736. doi: 10.1094/PDIS-05-23-0960-SC. Epub 2023 Dec 1.
Clubroot caused by is a serious soilborne disease on cruciferous crops worldwide. Agricultural practice is a preferable clubroot management strategy because of its low investment requirement and environmental safety. Among the agricultural practices, solarization has been widely applied in the integrated management of other soilborne diseases. However, only few reports exist on the effect of solarization on clubroot management. In this study, we measured the effect of plastic mulching on soil temperature at different depths and on clubroot incidence and severity under greenhouse and field conditions. The pathogen density in the soil after solarization was measured by quantitative PCR analysis. Results indicated that the mulching treatment increased soil temperature especially in the soil layer ranges of 0 to 20 cm. Solarization with mulching also effectively reduced the incidence and severity of clubroot in the greenhouse assay and the field trial by decreasing the population in the soil. This study suggested that solarization with mulching can impair clubroot development and thus contribute to the sustainable management of clubroot.
由引起的根肿病是一种严重的十字花科作物土传病害。农业措施因其低投入要求和环境安全性而成为一种更可取的根肿病管理策略。在农业措施中，太阳能消毒已广泛应用于其他土传病害的综合管理中。然而，关于太阳能消毒对根肿病管理的影响的报道却很少。在这项研究中，我们在温室和田间条件下测量了塑料覆盖对不同深度土壤温度以及根肿病发病率和严重度的影响。通过定量 PCR 分析测量了太阳能消毒后土壤中的病原菌密度。结果表明，覆盖处理特别是在 0 至 20 厘米的土壤层中增加了土壤温度。太阳能消毒加覆盖还通过减少土壤中的种群有效降低了温室试验和田间试验中根肿病的发病率和严重度。本研究表明，太阳能消毒加覆盖可以损害根肿病的发展，从而有助于根肿病的可持续管理。
