Toxicity Measurement of Carbendazim on Fusarium spp. in Alfalfa

doi:10.11733/j.issn.1007-0435.2002.04.006

›› 2002, Vol. 10 ›› Issue (4): 270-273.DOI: 10.11733/j.issn.1007-0435.2002.04.006

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Toxicity Measurement of Carbendazim on Fusarium spp. in Alfalfa

LI Min-quan¹, YANG Bao-sheng¹, HOU Jun¹, ZHANG Zi-he²

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

Received:2002-04-09 Revised:2002-06-28 Online:2002-11-15 Published:2002-11-15

四种杀菌剂对苜蓿根和根颈腐烂病菌的室内毒力测定

李敏权¹, 杨宝生¹, 侯军¹, 张自和²

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

作者简介:李敏权,(1962- ),男,副教授,博士,主要从事植物病理学的教学与研究工作,曾获省级科技进步奖三项,已发表论文20余篇
基金资助:
科技部“黄土高原退耕还草生态恢复与草畜产业化技术开发与示范”项目资助(编号2000-k01-04-01)

Abstract

Abstract: Fusarium oxysporum, F. acuminatum and F. semitectum caused crowm and root rot of alfalfa. The toxicity and efficacy of carbendazim, carbendazimthiram, experimental chemotherapeutant and thiophanatemethyl to them were measured with mycelium growth rate test method. The result indicated that these fungicides had inhibition effect on Fusarium spp.The results indicated the mean median effective concentration value(EC₅₀)was different. The EC₅₀ value of carbendazimthiram was 5.29μg/mL.But carbendazim was 68.2μg/mL, Even thiophanatemethyl was 166.79μg/mL.

Key words: Medicago Sativa L., Corwn and root rot, Fusarium spp., Carbendazim, Toxicity

摘要： 采用室内平皿生长速率法,研究四种杀菌剂对苜蓿根和根颈腐烂病的病原、尖孢镰刀菌、锐顶镰刀菌和半裸镰刀菌的毒力测定。结果表明,四种药剂对三种病原菌都有显著的抑制作用。其中多菌灵、甲基硫菌灵、枯腐宁和枯萎绝四种药剂对锐顶镰刀菌的有效中浓度(EC₅₀)分别为84.93、221.00、53.74和7.90μg/mL,对尖孢镰刀菌EC50分别为70.12、125.76、35.75和5.87μg/mL,对半裸镰刀菌分别为49.55、126.61和221μg/mL。以枯萎绝的抑菌作用最为突出,对三种镰刀菌的EC₅₀都在10μg/mL以下,枯腐宁次之,甲基硫菌灵最差。四种药剂的相关系数均在0.96以上,药剂浓度与抑制作用呈正相关。

关键词: 苜蓿, 根和根颈腐烂病, 镰刀菌, 多菌灵, 毒力

CLC Number:

S541
S482.2

LI Min-quan, YANG Bao-sheng, HOU Jun, ZHANG Zi-he. Toxicity Measurement of Carbendazim on Fusarium spp. in Alfalfa[J]. , 2002, 10(4): 270-273.

李敏权, 杨宝生, 侯军, 张自和. 四种杀菌剂对苜蓿根和根颈腐烂病菌的室内毒力测定[J]. , 2002, 10(4): 270-273.

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Toxicity Measurement of Carbendazim on Fusarium spp. in Alfalfa

四种杀菌剂对苜蓿根和根颈腐烂病菌的室内毒力测定

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