两株抗香蕉枯萎病生防菌的筛选与生防效应研究

戴青冬 1; 2、汪 军 1、2、邢益范 3、陈平亚 1; 2、毛 超 1; 2、王飞燕 1; 2、黄俊生 2

文章摘要

Screeni ng and bi ol ogi calcont rolef f ectoft wo ant agoni s t i cbact eri a agai ns tbanana f us ari um wi l t

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Author Name	Affiliation
戴青冬 1, 2、汪军 1、2、邢益范 3、陈平亚 1 , 2、毛超 1, 2、王飞燕 1, 2、黄俊生 2	1. 海南大学农学院、海南海口 570228；2. 中国热带农业科学院环境与植物保护研究所/ 农业部热带作物有害生物综合治理重点实验室/ 海南省热带农业有害生物监测与控制重点实验室、海南海口 571101；3. 海南省农业学校、海南海口 571100

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Abstract:

A f i el d pl otexper i mentwasconduct ed t o t es tt he ef f ect sofappl i cat i on Baci l l ussubt i l i sBLG01 and BDF11 scr eened f r om ant agoni st i c Baci l l usst r ai nsand l i qui d or gani c f er t i l i zer ( LOF)on t he gr owt h ofbanana pl ant ,di sease sever i t y i ndex ( DSI )off usar i um wi l t ,sur vi valabi l i t y ofFOC and cul t i vabl e bact er i a popul at i on i n r hi zospher e ofbanana.I ndoor t est i ng showed t hatBLG01 and BDF11 r est r ai ned t he mycel i algr owt h ofFOC by 70. 4% and 77. 2% on PDA pl at e.The r esul t s off i el d exper i mentshowed t hat ,af t er100 days oft r anspl ant i ng,al lt r eat ment s coul d i ncr ease t he gr owt h ofbanana and cont r olef f i ci enci escompar ed t o cont r olt r eat ment .B.subt i l i sBLG01,BDF11 and LOF t oget herhad t he bi ggestcont r ol ef f i ci ency on banana f usar i um wi l t .I n t he opt i mum t r eat ment ,t he pl anthei ght ,st em t hi ckness,f r esh wei ghtofaer i aland under gr ound par t of banana si gni f i cant l y i ncr eased,combi ned DSI decr eased by 45. 39% -65. 87% ,t he number of FOC decr eased s i gni f i cant l y by 40. 5% -50. 1% % ,whi l e t he numberofbact er i a i n r hi zospher e i ncr eased si gni f i cant l y by 25. 8% - 32. 8% . The number of FOC was si gni f i cant l y negat i vel y cor r el at ed t o cul t ur ed bact er i a i n r hi zospher e, whi l e was si gni f i cant l y posi t i vel y cor r el at ed t o DSI .The r esul t s i ndi cat e t hatappl yi ng B.subt i l i s BLG01 and BDF11 wi t h LOF can ef f ect i vel y pr omot e t he gr owt h of banana, decr ease t he number of FOC and i mpr ove cul t i vabl e bact er i a popul at i on at r hi zospher e ofbanana,and i ncr ease t he cont r olef f ecton banana f usar i um wi l t ,and i tshowswi de appl i cat i on pr ospect .

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