摘要
[Objective]The paper was to screen fungicides with strong antifungal activities against Fusarium oxysporum Schlecht,and to provide a theoretical basis for controlling root-rot of Rhodiola sachalinensis A. Bor. [Method]Using mycelial growth rate method,the indoor antifungal activities of eight fungicides against F. oxysporum were studied. [Result]Eight fungicides at different concentrations performed different antifungal activities. Toxicity test results showed that the EC_（50） value of Difenoconazole was the smallest（ 4. 267 4 mg/L）,followed by Mancozeb（ 6. 952 5 mg/L）,and the EC_（50） of Thiram,Captan and Procymidone were relatively small from 25 to 50 mg/L. [Conclusion]Among eight fungicides,Difenoconazole had the best antifungal effect against F. oxysporum,while Mancozeb,Thiram,Captan and Procymidone had good control effects as well.
[Objective]The paper was to screen fungicides with strong antifungal activities against Fusarium oxysporum Schlecht,and to provide a theoretical basis for controlling root-rot of Rhodiola sachalinensis A. Bor. [Method]Using mycelial growth rate method,the indoor antifungal activities of eight fungicides against F. oxysporum were studied. [Result]Eight fungicides at different concentrations performed different antifungal activities. Toxicity test results showed that the EC_（50） value of Difenoconazole was the smallest（ 4. 267 4 mg/L）,followed by Mancozeb（ 6. 952 5 mg/L）,and the EC_（50） of Thiram,Captan and Procymidone were relatively small from 25 to 50 mg/L. [Conclusion]Among eight fungicides,Difenoconazole had the best antifungal effect against F. oxysporum,while Mancozeb,Thiram,Captan and Procymidone had good control effects as well.
基金
Supported by Innovation and Entrepreneurship Training Program of College Students at Yanbian University in 2017(ydbksky2017444)
University-Enterprise Cooperation of Yanbian University[(2015)No.6]
