防治高原特色粳稻“楚粳”水稻白叶枯病的有效药剂筛选  

Screening of bactericides to control bacterial blight caused by Xanthomonas oryzae pv. oryzae of plateau special Japonica rice cultivars“Chugeng”

作　　者：邱曦锦 方绍兴 方飞艳 杨宇 胡爱 阮文忠 高顺玉[2] 王振吉[2] 杨俊 姬广海[1] QIU Xijin;FANG Shaoxing;FANG Feiyan;YANG Yu;HU Ai;RUAN Wenzhong;GAO Shunyu;WANG Zhenji;YANG Jun;JI Guanghai(Key Laboratory of Agriculture Biodiversity for Plant Disease Management,the Ministry of Education,Yunnan Agricultural University,Kunming 650201,China;School of Resources Environment and Chemistry,Chuxiong Normal University,Chuxiong 675000,Yunnan,China;Chuxiong Autonomous Prefecture Academy of Agricultural Sciences,Chuxiong 675000,Yunnan,China)

机构地区：[1]云南农业大学农业生物多样性与病虫害控制教育部重点试验室,昆明650201 [2]楚雄师范学院资源环境与化学学院,云南楚雄675000 [3]楚雄彝族自治州农业科学院,云南楚雄675000

出　　处：《农药》2024年第6期439-445,463,共8页Agrochemicals

基　　金：云南省应用基础研究计划青年项目(202201AU070194);地方高校联合专项-面上项目(20221109144315);云南农业大学国家重点实验室开放课题一般项目(gzkf2022005);云南省基础研究计划基础研究专项面上项目(202401AT070301);楚雄师范学院校级科研课题(XSKY2303)。

摘　　要：[目的]为了筛选出可用于防治高原特色粳稻水稻白叶枯病的有效药剂。[方法]采用平板抑菌试验进行有效药剂筛选,并对有效药剂进行田间防效评价。[结果]四霉素、喹啉铜·四霉素、中生菌素、噻唑锌对水稻白叶枯病菌均有较好的抑制效果,其EC_(50)值分别为2.694×10^(-4)、3.485×10^(-4)、7.682×10^(-4)、3.983×10^(-3)mg/L。[结论]温室试验和田间试验中都是四霉素的效果最好,温室试验中治愈效果为69.31%,预防效果为73.81%;田间试验中四霉素对日本晴的防效为31.68%,增产率达到94.73%,对楚粳53的防效为44.38%,增产率达到43.44%。[Aims]The aim of this study is to screen out the effective agents that can be used to control the bacterial blight of plateall special Japonica rice.[Methods]This study used antibacterial effect experiment to screen effective bactericides,and then evaluated their field control efficacy.[Results]The results showed that tetramycin,oxine-copper·tetramycin,zhongshengmycin and zinc thiazole had excellent inhibitory effect to Xanthomonas oryzae pv.oryzae,and their EC_(50) values were 2.694×10^(-4),3.485×10^(-4),7.682×10^(-4) and 3.983×10^(-3) mg/L,respectively.[Conclusions]The control effect of tetramycin was the best in laboratory test,with curative effect of 69.31%and preventive effect of 73.81%.In the field trials,the control effect of tetramycin on Nipponbare was 31.68%,and the yield increase rate was 94.73%.The control effect on Chugeng 53 was 44.38%,and the yield increase rate was 43.44%.

关 键 词：水稻白叶枯病菌 药剂筛选 防治效果 

分 类 号：S482.2[农业科学—农药学]