植物保护
植物保護
식물보호
PLANT PROTECTION
2014年
5期
143-147
,共5页
杨静美%冯岩%林铭欢%伍惠媚%黄秉智%许林兵
楊靜美%馮巖%林銘歡%伍惠媚%黃秉智%許林兵
양정미%풍암%림명환%오혜미%황병지%허림병
香蕉%枯萎病 4 号小种%抗病品种%筛选%防效
香蕉%枯萎病 4 號小種%抗病品種%篩選%防效
향초%고위병 4 호소충%항병품충%사선%방효
banana%Fusarium wilt Race 4%resistant cultivar%screening%control effect
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%。
為篩選抗枯萎病香蕉品種,通過傷根、針刺及淋菌法接種香蕉枯萎病菌4號小種,進行盆栽試驗,結果錶明,品種‘巴西蕉’和‘南天紅’的病情指數較高,分彆達42.5和37.5,為中感品種;而品種‘南天青’和‘南天黃’病情指數僅為15,為抗病品種;‘農科一號’病情指數最低,僅為7.5,是5箇品種中最抗病的,為高抗品種。為篩選防治香蕉枯萎病的綠色藥劑,選用殼聚糖水劑、竹醋液、耕保泰對比絡氨銅水劑對‘巴西蕉’進行盆栽藥效試驗,結果錶明,耕保泰防治效果較好,相對防效達78.57%;20%竹醋液的防治效果最差,僅為35.71%。
위사선항고위병향초품충,통과상근、침자급림균법접충향초고위병균4호소충,진행분재시험,결과표명,품충‘파서초’화‘남천홍’적병정지수교고,분별체42.5화37.5,위중감품충;이품충‘남천청’화‘남천황’병정지수부위15,위항병품충;‘농과일호’병정지수최저,부위7.5,시5개품충중최항병적,위고항품충。위사선방치향초고위병적록색약제,선용각취당수제、죽작액、경보태대비락안동수제대‘파서초’진행분재약효시험,결과표명,경보태방치효과교호,상대방효체78.57%;20%죽작액적방치효과최차,부위35.71%。
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%.