蒙古扁桃对根癌病的抗性评价  

The Resistance of Prunus mongolica to Crown Gall

作　　者：刘常红[1] 叶航[1] 李辉[1] 朱立新[1] 贾克功[1] 

机构地区：[1]中国农业大学果树发育调控与高效栽培实验室,北京100193

出　　处：《西北农业学报》2009年第3期181-183,共3页Acta Agriculturae Boreali-occidentalis Sinica

基　　金：国家"948"项目(201035);国家科技支撑计划项目(2007BAD57B05-4)

摘　　要：以实生苗新梢为试材，采用人工接种的方法研究了蒙古扁桃（Prunus mongolica）对发根土壤杆菌（Agrobacterium rhizogenes）的抗性。结果表明：接种后70d，株平均瘤径范围在0-16．6mm，群体平均瘤径6．6mm，蒙古扁桃对发根土壤杆菌中度感病，实生群体抗性分离宽泛，其中存在免疫、高抗、中抗、中度感病和高度感病5种类型，分别占8．60％、19．23％、14．42％、33．65％和24．04％。蒙古扁桃是发根土壤杆菌的优异抗原植物，是核果类果树抗根癌病砧木品种选育的珍贵种质资源，具有极为重要的开发价值。The resistance of Prunus mongolica to crown gall was studied using new shoots and evaluated for their reaction to Agrobacterium rhizogenes through the artificial inoculation. The results showed that Prunus mongolica was excellent germplasm resources resist to crown gall. The range of diameter was 0-16.6 mm and mean diameter of tumor in all plants is 6.60 mm at 70 days after inoculation. Immunity, high resistance, moderate resistance, moderate susceptibility and high susceptibility were found in Prunus mongolica and its percentage were 8. 6%, 19. 23%, 14. 42%, 33. 65%, 24.04%, respectively.

关 键 词：蒙古扁桃 抗病性 发根土壤杆菌 

分 类 号：S436.62[农业科学—农业昆虫与害虫防治]