【摘要】 采用生长速率法测定了柠檬草精油对梨树腐烂病菌、柑橘树脂病菌、柑橘黑腐病菌、西瓜炭疽病菌、甜瓜枯萎病菌、甜瓜叶斑病菌、甜瓜蔓枯病菌、蚕豆轮纹病菌的抑菌活性。结果表明,柠檬草精油对8种病原真菌都具有很好的抑菌活性,其EC50分别为308.052 2、433.319 6、399.733 8、319.010 3、366.895 7、279.126 1、270.738 8和333.495 6μL/L;用抑菌圈法测定了柠檬草精油对桃细菌性穿孔病菌的抑菌活性,结果表明,柠檬草精油对桃细菌性穿孔病菌也具有一定的抑菌活性,其最低抑菌浓度为500μL/L。更多还原

【Abstract】 By the mycelium growth rate methods,the inhibitory activities of Cymbopogon citratus essential oil was tested against Valsa ambiens(Pers.)Fr,Diaporthe citri(Fawcett)Wolf,Alternaria citri,Colletotrichum orbicalare,Fusarium oxysporum f.sp.melonis,Alternaria alternate,Didymella bryoniae,and Cercospora fabae.The results showed that C.citratus essential oil had good inhibition effects on 8 fungi and EC50 were 308.052 2,433.319 6,399.733 8,319.010 3,366.895 7,279.126 1,270.738 8 and 333.495 6 μL/L respectively.In additions,inhibition zone experiment showed that C.citratus essential oil had good inhibition effect on Xanthomonas pruni(Smith)Down with 500 μL/L of minimum inhibitory concentration(MIC).更多还原