Biocontrol of Chinese Cabbage Soft Rot with Bacterial Strain B
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摘要: 在菜园生态条件下,以108cfu/ml浓度的B菌株制剂对大白菜植株喷雾处理,结果可减轻软腐病的为害,叶发病率比对照减少67个百分点,防效为59.8%,而且有促进植株生长作用,其单株产量比对照高出19.0%.同时还表明,B菌株可诱导提高植株体内过氧化物酶活性,表现一定的抗病性。初步认为B菌株是一个很有潜力的生防菌。Abstract: The bacterial strain B was used to control chinese cabbage soft rot in field The results showed that the infection of pathogen on leaves was reduced by 67%, and a 59.8% controlling effect on incidence of disease was obtained It also indicated that bacterial strain B may induce the increase of peroxidase in the plants of chinese cabbage, the averaged OD of peroxidase was increased by 24.6% when comparing with the control The treated chinese cabbage resisted to Erwinia carolovora The preliminary conclusion is that strain B is a promising bacterium for biocontrol purposie.
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Key words:
- Erwinia carolovora Jonrs pv carotovora Bergey et al /
- Biocontrol /
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[2] 李洪连. 棉花抗感枯萎病品种根际真菌区系分析. 河南农业大学学报, 1991, 25(4):424~432
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