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Position: Home > Articles > Screening Trichoderma spp for biocontrol of root rot of soybean Chinese Journal of Oil Crop Sciences 2004,26 (4)

筛选用于防治大豆尖孢镰刀菌根腐病的木霉菌株

作  者:
邵红涛;许艳丽;李春杰;李兆林
单  位:
中国科学院东北地理与农业生态研究所
关键词:
木霉;大豆根腐病;生物防治;拮抗
摘  要:
采用平板对峙培养、温室盆栽的方法筛选来自黑龙江省海伦大豆轮作区的木霉菌,用于防治大豆尖孢镰刀菌根腐病。共测试了80个木霉菌株,筛选出3个防治效果较好的木霉菌株MM35、MM9、MM3,相对防效分别为26.95%~66.34%、21.52%~63.70%、22.78%~51.05%。盆栽试验表明MM35能够降低大豆根腐病的主要病原菌-尖孢镰刀菌(Fusariumoxysporum)在土壤中的种群数目。其中MM9对大豆植株能起到增生作用,MM35、MM3则无明显的促生作用。
译  名:
Screening Trichoderma spp for biocontrol of root rot of soybean
作  者:
SHAO Hong-tao~(1,2), XU Yan-li~1, LI Chun-jie~1, LI Zhao-lin~1(1.Northeast Institute of Geography and Agricultural Ecology,Chinese Academy of Sciences,Harbin 150040,China;2. Northeast Agricultural University, Harbin 150030, China)
关键词:
Trichoderma spp; Root rot of soybean; Biocontrol; Antagonism
摘  要:
80 strains of Trichoderma spp isolated from Hailun soybean rotation area were assessed in vitro and in vivo to screen for biocontrol agents against the root rot of soybean .Three strains (MM35,MM9,MM3) were showed with relatively better biocontrol efficacy: the reduction in root rot were 26.95%~66.34%、21.52%~(63.70%、)22.78%~51.05% respectively. The test in vivo showed that the population of the major causal agent of root rot of soybean -Fusarium oxysporum was reduced in the presence of isolate MM35 or MM9 . Among them, isolate MM9 could actually promote the growth of soybean.

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