生防细菌Snb331对水稻干尖线虫活性的影响  

Effects of Biocontrol Bacteria Snb331 Fermentation Broth on the Rice White-tip Nematode(Aphelenchoides besseyi)

作　　者：王胜君[1] 段玉玺[1] 陈立杰[1] 靳莹莹[1] 

机构地区：[1]沈阳农业大学植物保护学院,辽宁沈阳110161

出　　处：《河南农业科学》2008年第5期76-78,共3页Journal of Henan Agricultural Sciences

基　　金：国家自然科学基金资助(30673199;30300231);科技部成果转化基金资助(05EFN212100059);农业部科技成果转化基金资助(农计函[2004])

摘　　要：研究了生防细菌Snb331发酵液原液及不同稀释液对水稻干尖线虫活性及运动行为的影响。结果表明,在1×(原液),2×,4×,6×,8×,10×稀释浓度下,水稻干尖线虫的校正死亡率分别是87.24%,66.75%,57.30%,44.87%,22.75%,18.09%,均与无菌水对照差异显著;其不同浓度的发酵液对水稻干尖线虫的行为影响不同,随着浓度的增大和时间的延长,对水稻干尖线虫活动频率的抑制也增强。The effects of biocontrol bacteria Snb331 fermentation broth on the rice white-tip nematode（Aphelenchoides besseyi） were investigated. The corrected mortality rate of Aphe[enchoides besseyi at 1×,2×,4×,6×,8× and 10× dilution were 87. 24% , 66. 75%,57. 30%,44.87%, 22.75% and 18. 09%, respectively. The difference between these treatments and water control was significant. The different dilution of bacteria fermentation broth had different effects on Aphelenchoides besseyi. The restrain on moving frequency of Aphelenchoides besseyi was enhanced with the increased concentration and extended time.

关 键 词：生防细菌 水稻干尖线虫 发酵液 校正死亡率 运动行为 

分 类 号：S476.1[农业科学—农业昆虫与害虫防治]