安徽农业科学2026，Vol.54Issue(5)：27-31,5.DOI:10.3969/j.issn.0517-6611.2026.05.006
不同菜心品种对霜霉病的抗性鉴定
Resistance Identification of Different Varieties of Flowering Chinese Cabbage to Downy Mildew Disease
摘要
Abstract
[Objective]With the aim of screening out disease-resistant varieties for promotion in production,differences in disease-resistance of different varieties of flowering Chinese cabbage to downy mildew were analyzed.[Method]Fresh leaves of flowering Chinese cabbage infec-ted with downy mildew bacteria were collected from the field.The swimming sporangia were washed off with clean water and prepared into a sporangia suspension.The varieties were inoculated by spray method with a concentration of 2×103 spores per milliliter.The disease index was investigated for resistance grading to evaluate the differences in resistance to downy mildew among different varieties of flowering Chinese cab-bage.[Result]The results showed that the average disease index of 52 cultivars ranged from 39.26 to 70.12,among which 16 were moderate-ly resistant,35 were susceptible,and 1 was highly susceptible,accounting for 30.8%,67.3%,and 1.9%of the tested materials respective-ly.Yuetai No.8 had the highest average disease index(70.12)and Yuetai No.4 had the lowest average disease index(39.26).There were significant differences in disease index among varieties of flowering Chinese cabbage.[Conclusion]The research provides scientific data for breeding and promotion of flowering Chinese cabbage varieties resistant to downy mildew.The application and promotion of disease-resistant varieties help reduce pesticide usage,protect environment and increase yields,which is of great significance to agricultural production and food safety.关键词
菜心/霜霉病/喷雾接种法/病情指数/抗性鉴定Key words
Flowering Chinese cabbage/Downy mildew disease/Spray inoculation method/Disease index/Resistance identification分类
农业科技引用本文复制引用
李桂花,陆梦婷,符梅,郭巨先,骆善伟,李光光..不同菜心品种对霜霉病的抗性鉴定[J].安徽农业科学,2026,54(5):27-31,5.基金项目
2024年省级乡村振兴战略专项资金种业振兴行动项目(2024-NBH-00-001,2024-440400-103010206-002). （2024-NBH-00-001,2024-440400-103010206-002）
