BI Shu-tong,ZHOU Qing,LI Guo-ming,et al.Effect of the Concentration of Ethanol Solutions and Processing Time on Fusarium oxysporum?and Phytophthora capsici in Biological Soil Disinfection Using Ethano[J].Northern Horticulture,2014,38(13):172-176.
乙醇浓度及处理时间对土壤消毒效果的影响
- Title:
- Effect of the Concentration of Ethanol Solutions and Processing Time on Fusarium oxysporum?and Phytophthora capsici in Biological Soil Disinfection Using Ethano
- 文章编号:
- 1001-0009(2014)13-0172-05
- Keywords:
- ethanol; soil disinfection; soil-borne pathogens
- 分类号:
- S 472
- 文献标志码:
- A
- 摘要:
- 采用不同浓度的乙醇溶液处理土壤，研究了浓度及处理时间对土壤中2种土传病原尖孢镰刀菌和辣椒疫霉菌消毒效果的影响。结果表明：乙醇溶液浓度对消毒结果有较大影响，在处理5、10、15、20、25 d时，1.0%、2.0%、3.0%浓度乙醇溶液处理组2种病菌数量均少于对照组和0%浓度组，处理组和对照组显著性差异水平达到了极显著，且乙醇溶液浓度为3%时，消毒效果最好。乙醇处理时间对消毒效果也有较大影响，对尖孢镰刀菌来说，处理20 d后的效果最好，抑制率达到了最大值，3.0%浓度组为92%，2.0%浓度组为82%，1.0%浓度组为67%；对辣椒疫霉菌来说，处理15 d时效果最好，抑制率达到了最大值，3.0%浓度组为83%，2.0%浓度组为78%，1.0%浓度组为62%。
- Abstract:
- Soil were sprayed by different concentration of ethanol to study the effect of the concentration of ethanol solution and processing time on two soil-borne pathogens，Fusarium oxysporum and Phytophthora capsici.The results showed that ethanol solutions all had significantly suppression on the Fusarium oxysporum?and Phytophthora capsici in soil.The numbers of the two pathogens detected in 1.0%,2.0%,3.0% were less than the control group as well as the 0% concentration group at the time of 5,10,15,20,25 d and the differences reached a highly significant level.The numbers of the pathogens were the least in 3.0% concentration group.The processing time also had important effect.It was the best for Fusarium oxysporum after 20 days that the inhibition rate reached the maximum value，which were 92%，82%，67% for 3.0%，2.0%,1.0% concentration group respectively.It was the best for Phytophthora capsici after 20 days that the inhibition rate reached the maximum value，which were 83%，78%，62% for 3.0%，2.0%,1.0% concentration group respectively.
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备注/Memo
第一作者简介：毕舒童（1989-），男，硕士研究生，研究方向为农业工程。E-mail：shutong3232@163.com.