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几种中草药提取物对植物病原菌的抗菌活性研究
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摘要:
以苹果炭疽病菌、梨黑星病菌、番茄枯萎病菌为供试病菌,对7种中草药95%乙醇的提取物进行抑菌活性筛选研究。结果表明,中草药蛇床子、虎仗对苹果炭疽病菌、番茄枯萎病菌有较好的抑制作用,其对番茄枯萎病菌的EC50分别为0.8817g/L、0.4696g/L,对苹果炭疽病菌的EC50分别为0.8046g/L、0.3877g/L。
关键词:  中草药提取物 植物病原菌 抗菌活性 植物性杀菌剂
DOI:
修订日期:2002-06-27
基金项目:安徽省自然科学基金;99041646;
Studies on the Antifungal Activity of Seven Herbs on Plant Pathogen
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Abstract:
Seven kinds of herbs were screened on the three plant pathogen Venturia inaequalis,Fusarium oxysporum f.sp. lycopeersici,Colletotrichum gloeosporioides.The results showed that the extract of Cnidium monnieri and Polygonum cuspidatum had strong antifungal activity on the Colletotrichum gloeosporioides and Fusarium oxysporum f.sp.lycopeersici,the EC 50 of which were 0.8046 g/L and 0.3877 g/L respectively on the Colletotrichum gloeosporioides in 72 h,but 0.8817 g/L and 0.44693 g/L on the Fusarium oxysporum f.sp.lycopeersici.
Key words:  herb,plant pathogen,antifungal activity

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