黑龙江省大豆疫霉根腐病菌毒力类型分布及品种抗性评价  

Virulence Distribution and Cultivars Resistance Evaluation of Phytophthora Megasperma in Heilongjiang Province

作　　者：马淑梅[1] 金娜[1] 邵红涛[1] 

机构地区：[1]黑龙江大学农业资源与环境学院,黑龙江哈尔滨150080

出　　处：《大豆科学》2010年第3期466-470,共5页Soybean Science

基　　金：农业行业专项资助项目(3-20);国家科技支撑计划资助项目(2006BAD08A08)

摘　　要：对2008～2009年从黑龙江北部、东部、中部、南部等大豆产区采集的典型大豆疫霉根腐病株和病土进行分离纯化,得到64个大豆疫霉菌株;用国际上通用的一套鉴别寄主进行毒力测定,将病原菌划分为10个毒力类型,在不同来源的发病样本范围内明确了不同菌株的毒力类型和分布。用下胚轴创伤接种方法鉴定了73个大豆品种对不同大豆疫霉根腐病菌菌株的抗性反应,结果有29个品种抗4个以上大豆疫霉根腐病菌株,占鉴定总数的39.7%;在被鉴定的新品系中抗性表现最好的是07-1-1,它对1、3、11、21、24分离物均表现为抗病。Sixty-four strains from diseased plants and soil of Phytophthora sojae have collected from different soybean production district of Heilongjiang from 2008 to 2009.Ten independent types were identified with a set of international universal differential hosts and the virulence types and distribution of different strains inform each sampled district were elucidated.The hypocotyl inoculation method was adopted to identify resistance reaction of seventy-three soybean cultivars to different strains of Phytophthora sojae,twenty-nine cultivars resist to more than four strains of Phytophthora sojae were identified.The soybean 07-1-1 is resist to strains of isolates from No.1,3,11,21,24,and proved to be the best resistance line in the new lines identified.

关 键 词：大豆疫霉根腐病 毒力类型 品种抗性 

分 类 号：S565.1[农业科学—作物学]