不同熏蒸剂杀灭无土栽培基质中尖孢镰刀菌的效果评价

发布时间：2018-08-02 08:32

【摘要】：通过人工接种尖孢镰刀菌于无土栽培基质,采用稀释涂抹平板法测定基质中尖孢镰刀菌的数量变化,研究威百亩、棉隆、氰氨化钙、甲醛、1,3-二氯丙烯、二甲基二硫和甲基碘7种熏蒸剂不同浓度处理及作用时间对无土栽培基质中尖孢镰刀菌的作用效果。结果表明:7种熏蒸剂均可以显著降低基质中尖孢镰刀菌的数量。其中,120mg·L-142%威百亩和300mg·L-198%棉隆熏蒸5d对尖孢镰刀菌的灭杀率达100.00%;40%甲醛稀释50倍、800mg·L-1氰氨化钙、400mg·L-1二甲基二硫、150mg·L-11,3-二氯丙烯和300mg·L-1甲基碘熏蒸8d对尖孢镰刀菌的灭杀率分别达99.07%、98.71%、96.57%、94.86%和85.00%。由此得出,威百亩和棉隆对无土栽培基质中尖孢镰刀菌的灭杀效果最显著,且熏蒸时间短,其次为甲醛与氰氨化钙。
[Abstract]:The quantitative change of Fusarium oxysporum in matrix was measured by artificial inoculation of Fusarium oxysporum in soil free culture medium, and the quantitative change of Fusarium oxysporum in matrix was measured by dilution smear plate method, and the treatment of different concentrations of 7 kinds of fumigant, such as Wei hundred mu, cotton long, calcium cyanamide, formaldehyde, 1,3- two chloro propylene, two methyl two sulfur and methyl iodine, and the effect of time to the sickle of the sickle in the soilless culture matrix The results showed that the 7 kinds of fumigant could significantly reduce the number of Fusarium oxysporum in the substrate. Among them, the killing rate of 120mg. L-142% and 300mg L-198% fumigated 5D for Fusarium oxysporum was 100%, 40% formaldehyde diluted 50 times, 800mg L-1 cyanide ammoniate, 400mg. L-1 two methyl two sulfur, 150mg. L-11,3- two chlorpropyl. The killing rate of 300mg L-1 methyl iodine fumigated by 8D to Fusarium oxysporum was 99.07%, 98.71%, 96.57%, 94.86% and 85.00%., which was the most significant effect on the killing of Fusarium oxysporum in the soilless culture medium, and the fumigation time was short, followed by formaldehyde and calcium cyanide.
【作者单位】：中国农业科学院蔬菜花卉研究所;
【基金】：公益性行业(农业)科研专项(201203001,201203095) 国家大宗蔬菜产业技术体系项目(CARS-25-C-09) 农业部园艺作物生物学与种质创制重点实验室项目设施蔬菜协同创新中心项目
【分类号】：S432.44

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