| 杨静美 1, 冯岩 1, 林铭欢 1, 伍惠媚 1, 黄秉智 2, 许林兵 2*.香蕉枯萎病抗性品种及绿色药剂的初步筛选[J].植物保护,2014,40(5):143-147. |
| 香蕉枯萎病抗性品种及绿色药剂的初步筛选 |
| Preliminary screening of cultivars and green fungicides against banana Fusarium wilt |
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| DOI： |
| 中文关键词: 香蕉 枯萎病4号小种 抗病品种 筛选 防效 |
| 英文关键词:banana Fusarium wilt Race 4 resistant cultivar screening control effect |
| 基金项目:广东省自然科学基金项目(S2013010013263) |
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| 中文摘要: |
| 为筛选抗枯萎病香蕉品种, 通过伤根、针刺及淋菌法接种香蕉枯萎病菌4号小种, 进行盆栽试验, 结果表明, 品种‘巴西蕉’和‘南天红’的病情指数较高, 分别达 42.5和 37.5, 为中感品种; 而品种‘南天青’和‘南天黄’病情指数仅为15, 为抗病品种; ‘农科一号’病情指数最低, 仅为7.5, 是5个品种中最抗病的, 为高抗品种。为筛选防治香蕉枯萎病的绿色药剂, 选用壳聚糖水剂、竹醋液、耕保泰对比络氨铜水剂对‘巴西蕉’进行盆栽药效试验, 结果表明, 耕保泰防治效果较好, 相对防效达78.57%; 20%竹醋液的防治效果最差, 仅为35.71%。 |
| 英文摘要: |
| In order to select cultivars against banana Fusarium wilt, pot experiments were carried out with the inoculation methods of root cutting, prodding and sprinkling fungus of Fusarium oxysporum f. sp. cubense Race 4. The results showed that after inoculated with Fusarium, the disease indexes of ‘Brazil banana’ and ‘Skyred banana’ were 42.5 and 37.5, respectively, indicating they were middle susceptible. While the disease index of ‘Skygreen’ was 15, the same as ‘Skyyellow’, indicating they were the resistant cultivars. ‘Agricultural one’ demonstrated the lowest disease index of all the cultivars, only 7.5, which was the high resistant cultivar. Green fungicides against banana Fusarium wilt were also screened by pot experiments with chitosan, bamboo vinegar, Gengbaotai, compared with cuaminosulfate. The pot experiment with fungicides on ‘Brazil banana’ showed that Gengbaotai had the best control effiacy by 78.57%. However, 20% of bamboo vinegar was the weakest with the efficacy of 35.71%. |
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