摘要
对44个苜蓿材料进行抗匍柄霉叶斑病的评价,结果显示:苜蓿材料间的抗病性差异显著,叶片接种和田间验证的结果具有显著相关性。以病情指数为变量,将44份苜蓿材料聚为三类,其中抗病材料15份,中抗材料22份,感病材料7份。按标准筛选出抗病对照品种为皇冠,中抗对照品种为新牧1号,感病对照品种为赛特。
44 alfalfa cultivars/strains were evaluated for the resistance to stemphylium leaf spot by the single leaf inoculation. Compared with the field evaluation result, the results showed that the two evalua- tion methods were correlative remarkably. By the method of single leaf inoculation, taking disease index as a variable, the 44 cultivars/strains can be clustered into 3 categories, there were 15 cultivars/strains of re- sistance, 22 cultivars/strains of moderate resistance, and 7 cultivars/strains of sensitive. After analysis, three cultivars, Huangguan, Xinmu No. 1 and Site with different level of resistance against stemphylium leaf spot were preliminarily screened as the check cultivars of resistance evaluation system in China.
出处
《中国草地学报》
CSCD
北大核心
2015年第4期42-47,65,共7页
Chinese Journal of Grassland
基金
国家科技支撑项目"优质多抗牧草新品种选育与良种繁育关键技术的研究与示范"(2011BAD17B01-05)
国家草品种区域试验项目
关键词
苜蓿
匍柄霉叶斑病
抗病性
品种评价
标准对照品种
Alfalfa
Stemphylium leaf spot
Disease resistance
Variety evaluation
Check cultivar
