荔枝霜疫霉菌对烯酰吗啉的敏感性测定

荔枝霜疫霉病是荔枝最重要的病害之一,烯酰吗啉用于防治该病害.采用生长速率法测定了烯酰吗啉对2009-2012年采自广东、广西、福建和云南等地区的115个荔枝霜疫霉菌菌株的有效抑制中浓度值（EC50值）,结果表明：各菌株的EC50值介于0.0977～0.2226μg/mL之间,平均为0.1702 （±0.0026） μg/mL,最不敏感菌株的EC50值是最敏感菌株的2.28倍;所有菌株的EC50值频率分布呈连续单峰曲线,表明无抗药性亚群体....

Full description

Saved in:
Bibliographic Details
Published in广东农业科学 Vol. 41; no. 2; pp. 87 - 91
Main Author 易赛 潘汝谦 徐大高 凌金锋 彭埃天 习平根 姜子德
Format Journal Article
LanguageChinese
Published 华南农业大学资源环境学院,广东广州,510642%广东省农科院植物保护研究所/广东省植物保护新技术重点实验室,广东广州,510640 2014
Subjects
敏感性
烯酰吗啉
荔枝霜疫霉菌
荔枝霜疫霉菌
烯酰吗啉
敏感性
Online AccessGet full text
ISSN1004-874X

Cover

More Information
Summary:荔枝霜疫霉病是荔枝最重要的病害之一,烯酰吗啉用于防治该病害.采用生长速率法测定了烯酰吗啉对2009-2012年采自广东、广西、福建和云南等地区的115个荔枝霜疫霉菌菌株的有效抑制中浓度值（EC50值）,结果表明：各菌株的EC50值介于0.0977～0.2226μg/mL之间,平均为0.1702 （±0.0026） μg/mL,最不敏感菌株的EC50值是最敏感菌株的2.28倍;所有菌株的EC50值频率分布呈连续单峰曲线,表明无抗药性亚群体.
Bibliography:44-1267/S
Peronophythora litchii; dimethomorph; sensitivity
Litchi downy blight caused by Peronophythora litchii is one of the most prevalent diseases of litchi in China. Dimethomorph has been used to control the disease for more than 10 years. The survey of the fungicide resistance was conducted in this paper. The median effective concentration （EC50） values of dimethomorph to 115 isolates of P. litchii collected from Guangdong, Guangxi, Fujian and Yunnan during 2009 to 2012 were tested by mycelia radial growth inhibition method. The results showed that ECso values ranged from 0.0977 μg/mL to 0.2226 μg/mL. The average of EC50 value was 0.1702 （±0.0026） μg/mL. The EC50 value of the most insensitive isolate was 2.28 folds of the most sensitive one. The EC50 value frequency of all tested isolates distributed as a continuous unimodel curve. It indicated that there was no resistant subpopulation among these isolates.
YI Sai PAN Ru-qian XU Da-gao LING Jin-feng PENG Ai-tian XI Ping-gen JIANG Zi-de （1.College of Natura
ISSN:1004-874X