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%。
In order to select cultivars against banana Fusarium wilt,pot experiments were carried out with the in-oculation 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 ba-nana’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’dem-onstrated 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,com-pared 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%.
出处
《植物保护》
CAS
CSCD
北大核心
2014年第5期143-147,共5页
Plant Protection
基金
广东省自然科学基金项目(S2013010013263)
关键词
香蕉
枯萎病
4
号小种
抗病品种
筛选
防效
banana
Fusarium wilt Race 4
resistant cultivar
screening
control effect
