新疆部分地区苜蓿立枯丝核菌菌丝融合群的初步研究  

Preliminary Study on Anastomosis Groups of Rhizoctonia solani Isolated from Alfalfa in Some Areas of Xinjiang

作　　者：李克梅[1] 高俊灵 赵莉[1] 陈祥忠[1] 

机构地区：[1]新疆农业大学草业工程学院新疆草地资源与生态实验室,新疆乌鲁木齐830052 [2]新疆环境与气象中心,新疆乌鲁木齐830000

出　　处：《新疆农业科学》2006年第6期507-509,共3页Xinjiang Agricultural Sciences

基　　金：新疆现代化畜牧业试验示范项目办

摘　　要：从采集的21个地点的48份土壤碎物和37株苜蓿病株上,收集到101株立枯丝核菌(Rhizoctonia solaniKühn)菌株。对101个立枯丝核菌菌株进行的菌丝融合群(AG群)判定表明,新疆部分地区苜蓿上的立枯丝核菌菌丝融合群有AG1、AG2、AG4和AG5,其出现频率分别为9.9%、46.5%、5.9%和35.6%。其中AG2和AG5分离频率较高,为优势融合群。In this study, 101 Rhizoctonia solani Kühn strains were collected from 21 locations of 48 sites in the fragment and 37 plants in alfalfa diseased seedlings. According to the test of anastomosis groups（AGs） , 101 isolations of Rhizoctonia solani were categorized as follows： AG 1, AG2, AG4, AG5. The occurrence frequency was 9.9 %, 46.5 %, 5.9 % and 35.6 % separately, among which AG2 and AG5 have higher frequency of separation rate and belong to the anastomosis groups.

关 键 词：苜蓿 立枯丝核菌 融合群 

分 类 号：S435.5[农业科学—农业昆虫与害虫防治]