알로에 (Aloe arborescens M.)의 항진균성 검정을 통한 생물농약 가능성 탐색

Abstract

The results of antifungal activity reaction to Aloe peel and juice extracted by several solvents and concentrations against three plant pathogenic fungi as Collectrichum gloeosporioides, Fusarium oxysporum, and Fusarium solani are as follows. The antifungal activity of Aloe extracts varied with the kinds of solvents. In case of Collectrichum gloesporioides and Fusarium solani, it's the highest in water, second in methanol, and third in ethanol. It showed that antifungal activity of Aloe peel and juice extracts based on concentration is much more excellent in juice extracts than peel extracts against Collectotrichum gloeosporioides, Fusarium solani. Effect of antifungal activity against Fusarium oxysporum by juice extracts did not appear at a concentration of 102 ㎕/ℓ and then shows 9.5% of inhibition rate at 105 ㎕/ℓ while against Collectotrichum gloeosporioides it starts to react at 102 ㎕/ℓ and then reaches at 29.3% of the highest inhibition rate at a concentration of 105 ㎕/ℓ out of three plant pathogenic fungi. In vivo, the effect of control efficacy against Fusarium wilt caused by Fusarium oxysporum by juice extracts of foliar spray tends to increase and the more the concentration of juice extracts increases, the higher the effect of control efficacy against Fusarium wilt disease is. Foliar spray at a concentration of 10g/ℓ has a 62% of control efficacy compared with control treatment. In conclusion, I think that foliar spray of Aloe juice extracts can be the more effective method in order to prevent Fusarium wilt disease caused by Fusarium oxysporum.