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中文摘要：
应用抗腈菌唑标记的Trichoderma harzianum TUV-13的分生孢子制剂对鱼腥草Houttuynia cordata进行种茎浸泡和土壤处理。结果表明,两种处理均可促进鱼腥草种茎提早发芽、发根,并提高植株生物量。种茎浸泡处理对芽根萌发、地上部分生长的促进效果较好,而土壤处理则对提高地下茎产量效果更明显;两种方法当年对由Sclemtium rolfsii引起的白绢病的田间防效均可达70%以上,两年后在田间自然状态下,对该病仍有较好的防治作用。其中土壤处理两年后,对白绢病的防效为68.2%。木霉回收试验结果表明,TUV-13菌株可在土壤中较好地定殖,2年后其种群数量为2.31×105cfu.g-1,是土著木霉菌数量的289倍。
英文摘要：
To study the effect of disease control and growth promoting ability of Trichoderma harzianum TUV-13 on Houttuynia cordata, authors applied the conidial preparation of the isolate marked with myclobutanil resistance to H. cordata by stem soaking and soil treatment, respectively. Results showed that stem soaking with TUV-13 promoted root and shoot germination more obviously. Soil treatment increased rhizome production more effectively. Control efficacy against southern blight disease caused by Sclerotium rolfsii of both treatments were more than 70% in the first year when TUV-13 was applied, and was up to 68.2% two years later. Re-isolation indicated that TUV-13 colonized the bulk soils efficiently, with population reaching 2.31×105 cfu.g-1, 289 times more than that of aboriginal Trichoderma spp..
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