中国烟草科学Issue(1)：102-106,5.DOI:10.13496/j.issn.1007-5119.2015.01.019
大理州烟草黑胫病菌对烯酰吗啉的敏感性测定
Sensitivity Detection of Tobacco Black Shank Pathogens to Fungicide Dimethomorph in Dali, Yunnan
摘要
Abstract
It is crucial and helpful for plant disease management to detect resistance level of fungicide. Baseline sensitivity of Phytophthora nicotianae to fungicide dimethomorph was established based on in vitro assay and the dimethomorph resistance level of black shank pathogens collected from different tobacco planting zones in Dali were measured. The results showed that baseline sensitivity of P. nicotianae to dimethomorph was 1.4656 μg/mL. The range of EC50 values of all sixty-eight field isolates to dimethomorph was 0.5857 to 2.5254μg/mL, in which average value was 1.1118μg/mL. This result suggest that P. nicotianae isolates collected from Dali were high sensitive to dimethomorph and the resistance risk of black shank pathogens was low. Dimethomorph can be deployed to prevent tobacco black shank effectively, but it should be a reasonable rotation with different fungicides.关键词
烟草疫霉/黑胫病/烯酰吗啉/敏感性Key words
Phytophthora nicotianae/black shank disease/dimethomorph/sensitivity to fungicide分类
农业科技引用本文复制引用
户艳霞,裴卫华,曹继芬,周丽凤,王新中,徐发华,杨明英,赵志坚..大理州烟草黑胫病菌对烯酰吗啉的敏感性测定[J].中国烟草科学,2015,(1):102-106,5.基金项目
中国烟草总公司云南省公司科技计划项目 （）
