Identification Pathogens of Crown and Root Rot of Alfalfa in Dingxi Region

doi:10.11733/j.issn.1007-0435.2003.01.017

›› 2003, Vol. 11 ›› Issue (1): 83-86.DOI: 10.11733/j.issn.1007-0435.2003.01.017

Identification Pathogens of Crown and Root Rot of Alfalfa in Dingxi Region

LI Min-quan¹, CHAI Zhao-xiang¹, LI Jin-hua¹, DONG Yun-xia¹, ZHANG Li-ping¹, ZHANG Zi-he²

1. Gansu Agricultural University, Lanzhou, 730070, China;
2. Gansu Grassland Ecological Research Institute, Lanzhou, Gansu Province, 730070, China

Received:2002-08-08 Revised:2002-10-10 Online:2003-02-15 Published:2003-02-15

定西地区苜蓿根和根颈腐烂病病原研究

李敏权¹, 柴兆祥¹, 李金花¹, 董云霞¹, 张丽萍¹, 张自和²

1. 甘肃农业大学, 兰州, 730070;
2. 甘肃省草原生态研究所, 兰州, 730070

作者简介:李敏权,男(1962- ),博士,副教授,主要从事植物病理学的教学与研究
基金资助:
科技部“甘肃黄土高原退耕还草恢复生态与草产业化技术研究与开发”项目资助;甘肃省农委“黄土高原集约化种植模式研究与推广”项目资助

Abstract

Abstract: The distribution,pathogenicity ofFusarium species associated with crown and root rof of alfalfa(Medicago sativa L.) was examined in Dingxi,Gansu Province of China.Three species included Fusarium oxysporum,F.acuminatum and F.semitectum were the pathogenic to the disease.F.acuminatum and F.semitectum were new record on alfalfa in China.

Key words: Medicago sativa, Crown and root rot, Fusarium oxysporum, F.acuminatum, F.semitectum

摘要： 对定西九华沟两年生苜蓿根和根颈腐烂病的156个样品分离鉴定,幼苗接种致病性测定采用Booth的分类标准和系统,确认发生在甘肃中部干旱定西地区的苜蓿根和根颈腐烂病的优势病原菌为三种镰刀菌,即尖孢镰刀菌、锐顶镰刀菌和半裸镰刀菌,其中锐顶镰刀菌和半裸镰刀菌是中国苜蓿上的新记录。

关键词: 苜蓿, 根和根颈腐烂病, 尖孢镰刀菌, 锐顶镰刀菌, 半裸镰刀菌

CLC Number:

S435.29

LI Min-quan, CHAI Zhao-xiang, LI Jin-hua, DONG Yun-xia, ZHANG Li-ping, ZHANG Zi-he. Identification Pathogens of Crown and Root Rot of Alfalfa in Dingxi Region[J]. , 2003, 11(1): 83-86.

李敏权, 柴兆祥, 李金花, 董云霞, 张丽萍, 张自和. 定西地区苜蓿根和根颈腐烂病病原研究[J]. , 2003, 11(1): 83-86.

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Identification Pathogens of Crown and Root Rot of Alfalfa in Dingxi Region

定西地区苜蓿根和根颈腐烂病病原研究

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