番茄早疫病抗性材料的苗期接种鉴定  

Inoculation Identification of Tomato Germplasm Resistance to Early Blight at Seedling Stage

作　　者：尚春明[1] 高振江[1] 李秀华[1] 高娃[1] 王亮明 姚慧静[1] SHANG Chunming;GAO Zhenjiang;LI Xiuhua;GAO Wa;WANG Liangming;YAO Huijing(Institute of Agricultural Sciences of Baotou,Baotou,Inner Mongolia 014013)

机构地区：[1]包头市农业科学研究所,内蒙古包头014013

出　　处：《北方园艺》2018年第14期1-5,共5页Northern Horticulture

基　　金：内蒙古自治区科学技术厅资助项目(201602033)

摘　　要：以番茄品种‘1501黄’为试材,采用喷雾接种法,研究了4株茄链格孢菌(Alternaria solani)的致病性和分生孢子适宜接种浓度,于番茄苗期接种鉴定其抗性水平,以期为番茄早疫病的抗病育种提供依据。结果表明:GY7和GY9为番茄早疫病致病菌株,适宜接种浓度为1×10~6个·mL^(-1);分生孢子形态各异,倒棍棒至长椭圆形,0~7个横膈膜,0~3个纵膈膜,大小多在(60~150)μm×(15~30)μm,具喙,喙宽约5μm;供试15份番茄材料中有9份属于早疫病抗性材料,3份中抗材料,3份中度感早疫病材料。The tomato variety ‘Huang 1501＇was used as material,the pathogenicity of 4 strains of Alternaria solani,appropriate inoculum concentration of conidia and inoculation identification of tomato germplasm were studied at seedling stage by spraying inoculation in order to provide basis for disease resistance breeding of tomato early blight.The results showed that GY7 and GY9 were the pathogens of tomato early blight,and the suitable inoculation concentration was 1×10^6 spores·mL^-1.Conidia vary in shape,from the rod to the long oval.Every conidia possessed 0-3 vertical diaphragm（s）and 0-7 diaphragms.The size of conidia were ranged by（60-150）μm×（15-30）μm and the beak width of conidia were about 5μm.Inoculation identification showed that there were 9 resistant germplasm,3 moderately resistant germplasms and 3 moderately susceptible germplasms.

关 键 词：番茄早疫病 分生孢子 接种鉴定 抗性材料 

分 类 号：S436.412.14[农业科学—农业昆虫与害虫防治]