小花假泽兰提取物对十余种植物病原菌的抑制活性测试  

Fungistatic Activities of the Extraction from Mikania Micrantha

作　　者：祝木金[1] 冯俊涛[1] 冯惠玲[2] 张兴[1] 

机构地区：[1]西北农林科技大学无公害农药研究服务中心,陕西杨凌712100 [2]深圳仙湖植物园,深圳518004

出　　处：《西北农业学报》2003年第4期53-55,共3页Acta Agriculturae Boreali-occidentalis Sinica

基　　金：国家"十五"攻关资助项目(2002BA516A04)。

摘　　要：采用生长速率法和盆栽法测试了小花假泽兰(Mikaniamicrantha)乙醇提取物的抑菌活性,结果表明,在干样0.1g/mL浓度下,供试样品对苹果炭疽、番茄灰霉、甘蓝黑斑、南瓜枯萎、黄瓜炭疽、小麦赤霉、玉米大斑、棉花枯萎等8种病原菌的离体抑制效果为100%,对番茄早疫、杨树溃疡等2种病原菌的离体抑制效果在70%以上;在干样0.05g/mL浓度下,对小麦白粉病的保护效果为83.3%,值得进一步研究。The fungistatic activities of the extraction from Mikania micrantha were tested by rate of growth and pot culture methods. The results showed that the alcoholic extraction with ethanol at 0.1 g/mL was bio-active against Glomerlla cingulata, Botrytis cirerea, Alternaria brassicicola, Fusarium oxysporum (Schl. ) f. sp. cucumerinum, Colletorichum lagenarium, F. Graminearum, Exerohilum turcicum, and F. oxysporum f. sp. vasinfectum in virtro, and the inhibitive rate was 100%. There was an inhibitive rate of above 70% against Alternaria solani and Dothiorella gregaria in vitro at 0.1 g/mL. At 0.05 g/mL, the extraction could protect from B. graminis in vivo with and efficacious rate of 83.3%.

关 键 词：小花假泽兰提取物 植物病原菌 抑制活性 生长速率法 盆栽法 

分 类 号：S482.2[农业科学—农药学]