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摘要:
By growth rate method,the inhibitory effects of five solvent extracts from Helianthus tuberosus leaves against Phytophthora capsici were studied in the test.The results showed that different solvent extracts all had inhibitory effect against P.capsici,while 12.5mg/mL of extracts from H.tuberosusleaves with petroleum ether and ethyl acetate as solvents had the highest inhibitory effect against P.capsici,reaching 100%.In case of various solvent extracts with different concentration gradients,ethyl acetate extract had the most significant inhibitory effect;when the concentration was 5mg/mL,the inhibitory effect of ethyl acetate extract had reached 100%;when the concentration reduced to 2.5mg/mL,the inhibitory effect was still(27.91±2.076)%,significantly higher than that of other solvent extracts at the same concentration.The 50 times dilution of ethyl acetate extract fromH.tuberosusleaves was selected for pot test against pepper blight.,and the results showed that its control effect against pepper blight reached 100.00%,superior than that of chemical agent 25% metalaxyl WP 400 times dilution.
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篇名 Inhibitory Effect of Extracts from Helianthus tuberosus Leaves against Phytophthora capsici and Pot Verification Test
来源期刊 Plant Diseases and Pests(植物病虫害研究:英文版) 学科 农学
关键词 辣椒疫霉菌 叶提取物 抑制作用 试验验证 盆栽试验 菊芋 疫霉病菌 乙酸乙酯提取物
年,卷(期) 2015,(2) 所属期刊栏目
研究方向 页码范围 19-22
页数 4页 分类号 S436.413.1
字数 语种
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研究主题发展历程
节点文献
辣椒疫霉菌
叶提取物
抑制作用
试验验证
盆栽试验
菊芋
疫霉病菌
乙酸乙酯提取物
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期刊影响力
Plant Diseases and Pests(植物病虫害研究:英文版)
双月刊
2152-3932
安徽省合肥市农科南路40号
出版文献量(篇)
726
总下载数(次)
2
总被引数(次)
0
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