【作者】 王忠文； 张君成； 徐兴； 廖咏梅； 熊英；

【Author】 WANG Zhong-wen,Zhang Jun-Cheng,XU Xing,LIAO Yong-Mei,Xiong-Ying (College of Agriculture,Guangxi University,Nanning 530004 China)

【机构】 广西大学农学院；

【摘要】 采用生长速率法测定了银杏外种皮提取物对4种病原真菌的抑制作用。在含植物提取物干物质为10mg/ml的浓度下,银杏外种皮的提取物对水稻纹枯病菌（Rhizoctonia solani）、玉米大斑病菌（Exserohilum lurcicum）、玉米小斑病菌（Bipolaris maydis）、荔枝霜疫霉病菌（Peronophythora litchi）的抑菌率分别为77.28%、73.23%、69.56%和55.18%。对4种病原真菌的抑制中浓度EC₅₀分别为38.32mg/ml、46.55 mg/ml、76.45 mg/ml和84.86 mg/ml。更多还原

【Abstract】 Ginkgo plant extracts were tested for its antifimgal activity against four important plant pathogenic fungi:Rhizoctonia solani,Exserohilum lurcicum,Bipolaris maydis and Peronophythora litchi in vitro by inhibition of mycelial radial growth at concentration of 10mg dry methanol extract per ml.The results showed that the inhibitory rate was 77.28%、73.23%、69.56%and 55.18%,respectively.The toxicity tested showed that the EC₅₀ to four pathogens was 38.32mg/mL、46.55 mg/mL、76.45 mg/mL and 84.86 mg/mL respectively.更多还原