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辣椒疫病拮抗放线菌的筛选及防治试验初报

China Vegetables(2009)

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Abstract
通过平板对峙培养法,从辣椒根际土壤中分离获得的276个分离物中筛选出对辣椒疫病菌有较强拮抗作用的放线菌7株。室内测定其对辣椒疫病菌的抑菌带宽为7.8~13.0mm;温室盆栽防治试验表明,菌株CQ21-3对辣椒疫病控病效果最好,控病效果达73.2%;无菌发酵液试验表明,放线菌CQ21-3无菌发酵液在一定浓度范围内均能有效抑制疫病菌菌丝生长,降低孢子萌发率。
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Key words
pepper phytophthora blight,antagonism,actinomycetes cq21-3 strain,biological control,screening
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