Panama disease (Fusarium wilt disease) caused by Fusarium oxysporum f. sp. cubense race 4 (FOC) severely threatens banana (Musa spp.) production worldwide. Intercropping of banana with Allium plants has shown a potential to reduce Panama disease. In this study, six cultivars of Chinese chive (Allium tuberosum Rottler) were selected to compare their differences in antifungal activity and active compounds. Three cultivars Duokang Fujiu 11, Fujiuhuang 2, and Duokang Sijiqing with higher levels of antifungal compounds were further used for intercropping with banana in the pots and field to compare their effects on growth and disease incidence of banana. The six cultivars showed significant differences in antifungal activity against FOC mycelia growth in both leaf volatiles and aqueous leachates. The aqueous leachates displayed stronger antifungal activity than the volatiles. FJH cultivar showed the best inhibitory effect among all six cultivars. Contents of three main antifungal compounds dipropyl trisulfide (DPT), dimethyl trisulfide (DMT), and 2-methyl-2-pentenal (MP) in volatiles and aqueous leachates varied considerably among cultivars. Pot and field experiments showed that intercropping with three selected Chinese chive cultivars significantly improved banana vegetative growth, increased photosynthetic characteristics and yield but decreased disease incidence of Panama disease. Our results indicate that intercropping with Chinese chive shows potential to reduce banana Panama disease and selection of appropriate cultivars is vital for effective disease control.

中文翻译：

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通过间作韭菜（Allium tuberosum Rottler）防治香蕉巴拿马病：品种差异。


巴拿马病（镰刀菌枯萎病）由尖孢镰刀菌（Fusarium oxysporum f.）引起。 sp。 cubense race 4 (FOC) 严重威胁着全世界香蕉 (Musa spp.) 的生产。香蕉与葱属植物间作已显示出减少巴拿马病的潜力。在本研究中，选择了六个韭菜品种（Allium tuberosum Rottler）来比较它们在抗真菌活性和活性化合物方面的差异。进一步采用抗真菌物质含量较高的多康富士11号、富士黄2号、多康四季青3个品种与香蕉进行盆栽和大田间作，比较其对香蕉生长和发病率的影响。六个品种在叶子挥发物和水性渗滤液中对 FOC 菌丝体生长的抗真菌活性表现出显着差异。水性渗滤液比挥发物表现出更强的抗真菌活性。 6个品种中，FJH品种的抑制效果最好。挥发物和水浸出液中三种主要抗真菌化合物二丙基三硫醚 (DPT)、二甲基三硫醚 (DMT) 和 2-甲基-2-戊烯醛 (MP) 的含量在不同品种之间差异很大。盆栽和田间试验表明，间作三个选定的韭菜品种显着改善了香蕉的营养生长，提高了光合特性和产量，同时降低了巴拿马病的发病率。我们的结果表明，间作韭菜具有减少香蕉巴拿马病的潜力，选择合适的品种对于有效控制疾病至关重要。