Antifungal Activity of Corydalis Chloroform Extract against Several Kinds of Pathogenic Fungi of Corn and Soybean

• 作者: Shen Xiaohui
• 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: 玉米小斑病 氯仿提取物 病原真菌 延胡索 抑菌活性 大豆 萃取液 常见疾病
• 年，卷（期）: 2014,（3）
• 页码范围: 28-30
• 页数: 3页
• 分类号: S435.131

摘要

In order to better control common diseases of corn and soybean in Sanjiang plain,the in vitro antifungal activity of corydalis chloroform extract against several common fungal diseases of corn and soybeans was tested using mycelial growth rate method. The test result of mycelial growth rate showed that the inhibition rate of corydalis chloroform extract against Cercosporidium sofinum( Hara) Liu & Guo and Rhizoctonia solani Kuhn were all above 80%,and EC50 values were52. 98- 58. 98 mg /L. The test result of spore germination showed that the inhibition rates against spore germination of all pathogenic fungi were high,in which the inhibition rates against spore germination of C. sofinum and Bipolaris maydis reached 100%. Biological control test showed that the control effects against other diseases were below 60% except that against R. solani reaching 61. 46%.