摘要
采用菌丝生长速率法测定了来自贵州贵阳、遵义、铜仁、毕节、安顺、黔西南、黔东南和黔南8个地区114个水稻纹枯病菌AG1-1A融合群菌株对己唑醇的敏感性。结果表明,114个菌株的EC_(50)值分布范围为0.0036~0.4216μg/mL,平均EC_(50)值为0.0655μg/mL,敏感性频率分布不符合正态分布,但其主峰范围内111株菌株的敏感性频率分布符合正态分布,其平均EC_(50)值为0.0578μg/mL,可作为贵州田间水稻纹枯病菌对己唑醇的敏感基线。贵州水稻纹枯病菌对己唑醇仍敏感。
The susceptibility of 114 strains of Rhizoctonia solani AG1-1A anastomosis group isolated from Guiyang,Zunyi,Tongren,Bijie,Anshun,Qianxinan,Qiandongnan,and Qiannan to hexaconazole was determined by testing the mycelial growth rate.The results showed that the EC_(50) values of 114 strains ranged from 0.0036 to 0.4216μg/mL,and the average EC_(50) was 0.0655μg/mL.The frequency distribution of hexaconazole susceptibility in R.solani populations did not conform to the normal distribution.However,the frequency distribution of the sensitivity of 111 strains within the main peak was in accordance with the normal distribution,and the average EC_(50) value was 0.0578μg/mL,which could be the baseline sensitivity in Guizhou.To sum up,Rhizoctonia solani in Guizhou is still sensitive to hexaconazole.
作者
何海永
谭清群
谢海呈
王臣方
黄露
赵玳琳
李继业
杨学辉
He Haiyong;Tan Qingqun;Xie Haicheng;Wang Chenfang;Huang Lu;Zhao Dailin;Li Jiye;Yang Xuehui(Institute of Plant Protection,Guizhou Academy of Agricultural Science,Guiyang Guizhou 550006,China;Institute of Rice,Guizhou Academy of Agricultural Science,Guiyang Guizhou 550006,China;Plant Inspection Station,Bureau of Agriculture and Rural Affairs of Yanjin,Yanjin Yunnan 657500,China)
出处
《中国植保导刊》
北大核心
2022年第3期11-15,共5页
China Plant Protection
基金
植物病虫害生物学国家重点实验室开放基金(SKLOF201815)
贵州省联合基金(黔科合J字LKN[2013]08号)
贵州省科技计划项目(黔科合支撑[2018]2294)
贵州省科技计划项目(黔科合成果[2020]1Y042)
贵州省科技平台及人才团队计划项目(黔科合平台人才[2017]5719)
贵州省现代农业产业体系项目(GZCYTX2020-0602)
贵州省科研机构服务企业行动计划项目(黔科合服企[2018]4004)。
关键词
水稻纹枯病菌
己唑醇
敏感基线
Rhizoctonia solani
hexaconazole
baseline sensitivity
