| Banana wilt disease is a devastating soil-borne vascular disease,caused by Fusarium oxysporum f.sp. cubense (FOC) infection, and making a serious impact on the healthy development of the world's banana industry. In order to find an effective method to control banana wilt, the cake fertilizer was fermented in 5 different C/N ratio, then the fermentation broth was used to treatment banana seedlings. The potted results showed that, all of the 5 kinds of C/N ratio fermentation broth had some prevent offect on the banana wilt disease, and treatment BF15 had the best disease prevention(to 61.3%), significantly higher than other treatments.Further study found that,compared to treatment B (inoculated with the pathogen only), 5 different C/N ratio cake fertilizer fermentation broth treatment could improve banana seedling height, fresh weight, chlorophyll content, SOD, POD, CAT activity, while reducing MDA content and relative electrical conductivity. Which treatment BF15, compared with treatment B, plant height, fresh weight, chlorophyll content, SOD, POD, CAT activity increased by 37.5%, 69.6%, 47.6%, 68.9%, 48.4%, 59.8%, MDA content and relative conductivity rate decreased by 53.8%,50.2%. It followed that, when the C/N ratio of cake fertilizer fermentation was 15, the fermentation broth treatment the banana seedings had a good disease prevention effect. |
