甘肃省秦艽病害调查及病原鉴定  

Investigation and identification of pathogen on Gentiana macrophylla in Gansu Province

作　　者：王艳[1] 陈秀蓉[2] 杜弢[1] 陈红刚[1] 

机构地区：[1]甘肃中医学院药学系,甘肃兰州730000 [2]甘肃农业大学草业学院,草业生态系统教育部重点实验室,中-美草地畜牧业可持续发展研究中心,甘肃兰州730070

出　　处：《甘肃农业大学学报》2009年第3期102-105,共4页Journal of Gansu Agricultural University

摘　　要：2005年7月至2006年11月，对甘肃省天水、陇西、岷县、临洮、天祝5个市县的秦艽（Gentianamacraphylla）病害进行了田间调查与室内病原菌的分离鉴定，结果仅发现了锈病（PucciniagentianaeRohling）和斑枯病（SeptoriamicrosporaSpegazzini）．在人工栽培条件下，锈病和枯斑病发病率分别为38％～85％和42％～88％，严重度均达2—4级，发生严重，需注意药剂防治；而在天然草原上秦艽斑枯病极少发生，锈病发病率也仅为9．5％～24．0％，严重度为1—3级．Diseases of Gentiana macrophylla from Tianshui, Longxi, Minxian, Lintao and Tianzhu of Gansu Province were investigated and pathogens were identified in the laboratory. Two diseases have been found, which were rust disease, Puccinia gentianae （F. stranss） Rohling, and leaf-spot, Septoria microspora Spegazzini. Under cultivation conditions in Gansu,the incidences of rust and leaf-apot were 38%-85 % and 42 %-88% respectively, and disease severities were both 2--4 degree. On natural grassland, leaf-spot seldom occurs, the incidence of rust was 9.5 %-24 %, disease severity was 1--3 degree.

关 键 词：秦艽 锈病 斑枯病 病原鉴定 

分 类 号：S567.9[农业科学—中草药栽培]