中国烟草学报2012，Vol.18Issue(4)：46-50,71,6.DOI:10.3969/j.issn.1004-5708.2012.04.008
不同类型杀菌剂对烟草黑胫病菌生物活性的研究
Biological activity of different fungicide controlling tobacco black shank
摘要
Abstract
Effects of fungicides dimethomorph, azoxystrobin, kresoxim-methyl, metalaxyl and mancozeb on mycelial growth, sporulation, zoospores release and germination of sporangia as well as of cystospores of Phytophthora parasitica were studied. Results showed that dimethomorph and metalaxyl inhibited mycelial growth more effectively than other fungicides tested in order of mancozeb, azoxystrobin, kresoxim-methyl. Sporangia production was reduced by dimethomorph and metalaxyl more than by azoxystrobin, kresoxim-methyl or mancozeb. Zoospore release from sporangia was most sensitive to azoxystrobin and kresoxim-methyl, less sensitive to mancozeb and insensitive to dimethomorph and metalaxyl. Direct germination of sporangia of P. parasitica was inhibited by azoxystrobin and kresoxim-methyl, followed by dimethomorph and mancozeb, whilst was insensitive to metalaxyl. Germination of encysted zoospores of P. parasitica was most sensitive to azoxystrobin and kresoxim-methyl, followed by dimethomorph. Mancozeb was moderately active, while metalaxyl showed no effects.关键词
烟草黑胫病菌/卵菌/羧酸酰胺/甲氧基丙烯酸酯Key words
phytophthora parasitica Breda de Haan/ oomycetes/ phenylamides/ strobilurins分类
农业科技引用本文复制引用
汪汉成,李文红,李兴龙,张恒,王晶君,石俊雄,商胜华,王茂胜..不同类型杀菌剂对烟草黑胫病菌生物活性的研究[J].中国烟草学报,2012,18(4):46-50,71,6.基金项目
贵州省科学技术基金(黔科合J字[2011]2337号)、中国烟草总公司(项目编号:11020100219)、贵州省烟草公司(201018)、“十二五”公益性行业(农业)科研专项经费(201103004) （黔科合J字[2011]2337号）
