不同土壤湿度条件下绿色木霉对尖孢镰刀菌数量的影响  

Effect of Trichoderma viride on amount of Fusarium oxysporum under different soil moisture contents

作　　者：梁昌聪[1] 刘磊[1] 张建华[1] 郭立佳[1] 汪军[1] 黄俊生[1] 

机构地区：[1]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检测与控制重点实验室,海口571101

出　　处：《植物保护》2014年第5期93-95,110,共4页Plant Protection

基　　金：公益性行业(农业)科研项目(200903049)

摘　　要：采用平板菌落计数法研究在不同土壤湿度条件下绿色木霉在土壤中的定殖动态及对尖孢镰刀菌数量的影响。结果显示:在3个土壤湿度条件下,接种木霉后前4周均能显著降低镰刀菌的数量;与对照2(CK-H06)相比,处理(B2-H06)中木霉的孢子含量没有显著性变化。第1、2周,对照1(CK-B2)与处理(B2-H06)的镰刀菌含量与土壤湿度呈显著性正相关;在第5周,处理(B2-H06)的镰刀菌和木霉菌含量与土壤湿度呈显著性负相关。The colonization of Trichoderma viride in the soil and the effect of T .viride on the amount of Fusari-um oxysporum were studied by plate culture count method.The results showed that the amount of F .oxysporum decreased significantly by the inoculation of T .viride under three soil moisture contents during the first four weeks.The amount of T .viride in the treatment group was not significantly changed compared to control group 2 during the first five weeks.There was no positive correlation between the soil moisture content and the amount of F .oxysporum in the control group 1 and treatment group during the 1st and 2nd weeks.The amount of F.oxys-porum and T.viride in the treatment group were negatively correlated with the soil moisture in the 5th week.

关 键 词：绿色木霉 土壤湿度 尖孢镰刀菌 

分 类 号：S476[农业科学—农业昆虫与害虫防治]