皖南烟稻轮作区水稻稻曲病的调查与防治
Investigation and Control of Rice False Smut in Wannan Tobacco-rice Rotation Area
李云 1杨亚曦 2朱启法 1林硕 1刘国侠1
作者信息
- 1. 安徽皖南烟叶有限责任公司，安徽宣城242000
- 2. 贵州大学农学院，贵州贵阳550025
- 折叠
摘要
[目的]筛选适合皖南烟区稻曲病防治的杀菌剂，为皖南烟区水稻稻曲病的防治提供参考。[方法]对南粳9108水稻稻曲病的发病情况进行了调查及病原菌鉴定，同时采用生长速率法测定6种杀菌剂对稻曲病病原菌的室内毒力。[结果]南粳9108水稻稻曲病的发生较严重，发病率达62％；稻曲病病原菌为半知菌亚门稻绿核菌属绿核菌；6种药剂对菌丝生长的抑制效果不同，30％苯甲·丙环唑EC和6％井冈·枯芽菌WP的抑菌作用最强，其EC50分别为0．2457和3．1501μg／mL。[结论]30％苯甲·丙环唑EC和6％井冈·枯芽菌WP的防治效果较好，可进一步用于大田防治试验。
Abstract
Objective] To screen fungicides suitable for rice false smut in Wannan Tobacco-rice Rotation Area, and to provide references for the control of rice false smut in Wannan Tobacco-rice Rotation Area.[Method] Incidence of rice false smut in Nanjing 9108 was investigated;and the pathogenic identification was carried out.At the same time, growth rate method was used to detect the indoor toxicities of 6 fungicides to rice false smut.[ Result] The rice false smut of Nanjing 9108 was relatively serious with its incidence reaching 62%.The pathogen was i-dentified to be Ustilaginoidea virens ( Cooke.) Takah.Different fungicides had different inhibition effects on mycelium growth of rice false smut.EC50 of 30% difenoconazole· propicondzole EC and 6% Jinggangmycin· Bacillus subtilis WP were 0.245 7 and 3.150 1 μg/mL, re-spectively, which had the strongest bactriostasis.[Conclusion] 30% difenoconazole· propicondzole EC and 6% Jinggangmycin· Bacillus subtilis have relatively good control effects, which can be used for further prevention and control experiment in the fields.
关键词
稻曲病/病害调查/病原菌鉴定/杀菌剂筛选Key words
Rice false smut/Disease investigation/Pathogenic identification/Screening of fungicides引用本文复制引用
基金项目
安徽皖南烟叶有限责任公司与上海烟草集团合作技术开发项目(SZBCW2015)
出版年
2016
国家科技期刊平台
NSTL
维普
万方数据