蔷薇属植物抗黑斑病等级模型的优化及应用  

Improvement of rose black spot resistance model and its application

作　　者：冯慧[1,2] 卜燕华 王茂良 戴思兰 丛日晨[2] FENG Hui;BU Yanhua;WANG Maoliang;DAI Silan;CONG Richen(College of Landscape Architecture, Beijing Forestry University, Beijing 100083, China;Beijing Institute of Landscape Architecture, Beijing 100102, China)

机构地区：[1]北京林业大学园林学院,北京100083 [2]北京市园林科学研究所,绿化植物育种北京市重点实验室,北京100102

出　　处：《湖南农业大学学报（自然科学版）》2017年第6期640-645,共6页Journal of Hunan Agricultural University(Natural Sciences)

基　　金：北京市科技新星计划项目(2008B47);北京市园林绿化局科技计划项目(YLHH2012001)

摘　　要：采用田间鉴定与叶片离体检测相结合的方法,对北京地区园林绿化中常用的蔷薇属36个品种(种)的抗黑斑病能力进行了评价。结果发现:使用感病率为参数的原模型公式不能很好地区分蔷薇属不同品种(种)之间的抗病差异,用田间观测的感病指数(I)替代发病率(N),可以对蔷薇属植物抗黑斑病能力进行有效检测。利用优化的蔷薇属植物抗黑斑病等级模型,可将供试蔷薇属品种(种)分为4类:4个免疫品种(种);9个高抗品种(种);15个感病品种(种);8个高感品种(种)。刺梨、无刺蔷薇、三季玫瑰、玫瑰的抗黑斑病能力综合值显著高于月季。现代月季中,藤本月季的抗黑斑病能力综合值最高,其次是大花月季,丰花月季的抗黑斑病能力综合值最低。橙色月季的抗黑斑病能力综合值最高,其次是红色和粉色,白色月季的抗黑斑病能力综合值最低。Both the field assessment and the detached leaf assay were used in this study to evaluate the black spot resistance of36rose varieties/species which were widely used in Beijing landscape.The result showed that:by using previous model,the difference of resistance to black spot disease among these36rose varieties/species can’t be obtained.Thus,the incidence of damaged leaves was introduced to the model to replace the incidence of black spot disease.Based on this,a more accurate,fast method to evaluate rose resistance to black spot was established.Using this new model,4immune varieties/species,9high resistant varieties/species,15medial susceptible varieties/species and8serious susceptible varieties/species were selected.The disease resistance rating score of Rosa roxburghii,Rosa multiflora var.inermis,Hybrid rugose and Rosa rugose were higher than modern rose.The rating score of climbing roses was higher than shrub roses and floribunda roses.The rating score of modern rose with orange flowers was higher than those with red flower and those with pink flowers,and the rating score of modern rose with white flowers was lowest.

关 键 词：蔷薇属植物 黑斑病 田间鉴定 叶片离体检测 抗病等级模型 

分 类 号：Q949.751.8[生物学—植物学] S685.12[农业科学—观赏园艺]