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防治花生腐霉果腐病的化学药剂筛选 被引量:4

Fungicides screening for management of peanut pod rot caused by Pythium myriotylum
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摘要 花生果腐病是一种重要的土传病害,一旦发生会造成荚果腐烂落果,重病田可致绝收。群结腐霉菌(Py thium myriotylum)是引起花生果腐病最主要的病原菌。为寻找防治花生果腐病的有效药剂,本研究对6种化学药剂进行室内筛选,实验结果表明,96.8%的咯菌腈对引起花生果腐病的群结腐霉有较好的抑菌效果,EC50为3.16×10-5 mg/L,较低浓度的药剂就可以达到很好的抑制效果。盆栽接种后,用6种杀菌剂进行灌根,待荚果成熟后对病害发病情况进行调查统计,结果表明96.8%咯菌腈是防治花生果腐病最有应用潜力的药剂品种。 Peanut pod rot is one of the most important soil-borne diseases on peanut.It will cause pod rot,and the seriously affected field can lead to total crop failure.In recent years,Pythium myriotylum was identified as the main pathogen of peanut pod rot in the major peanut producing areas of China.In order to control this disease effi ciently,6 fungicides were screened indoors,the experimental results showed that 96.8%fludioxonil had best inhibi tory effect on mycelial growth of P.myriotylum.The EC50 value was 3.16×10-5 mg/L.The six fungicides were used for root irrigation,after potted seedlings inoculation,and the disease incidence was investigated after the pods rip ened.The results showed that 96.8%fludioxonil was the best potential chemical agent for preventing peanut pod rot.
作者 于静 吴菊香 许曼琳 张霞 郭志青 陈殿绪 张智猛 李新国 迟玉成 万书波 YU Jing;WU Ju-xiang;XU Man-lin;ZHANG Xia;GUO Zhi-qing;CHEN Dian-xu;ZHANG Zhi-meng;LI Xin-guo;CHI Yu-cheng;WAN Shu-bo(Shandong Peanut Research Institute,Qingdao 266100,China;Biotechnology research center of Shandong Academy of Agricultural Sciences,Jinan 250100,China;Shandong Academy of Agrucultural Sciences,Jinan 250100,China)
出处 《中国油料作物学报》 CAS CSCD 北大核心 2020年第1期121-126,共6页 Chinese Journal of Oil Crop Sciences
基金 国家重点研发计划项目(2018YFD02010070) 山东省自然科学基金(ZR2018LC015) 青岛市民生科技计划(17-3-3-70-nsh) 山东省现代农业产业技术体系花生创新团队建设项目(SDAIT-04-07) 山东省农业科学院农业科技创新工程(CXGC2018E21 CXGC2016B11)。
关键词 花生 果腐病 群结腐霉 毒力测定 最佳接种时期 防治效果 peanut pod rot Pythium myriotylum toxicity test optimum inoculation period control efficacy
作者简介 于静(1987-),女,助理研究员,博士,主要从事花生植物病理学研究,E-mail:iamyujing2008@126.com;共同第一作者:吴菊香,女,助理研究员,山东莱西人,硕士,主要从事花生植物保护研究,E-mail:1059527515@qq.com;通讯作者:迟玉成,副研究员,主要从事植物病理学,E-mail:87626681@163.com;万书波,男,研究员,主要从事花生栽培生理生态研究,E-mail:wansb@saasac.cn。
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