The authors studied endophytic harmful fungi (Alternaria, Olpidium) in the Clematis tangutica. Adding to the soil «Ordan» fungicide, phosphoric flour, chalk and oxalic acid significantly increased the intensity of Clematis tangutica roots mycorrhization by arbuscular mycorrhizal fungi. Fungicide «Azofos» had a significant effect on reducing the growth of Clematis tangutica shoots, and chalk stimulates their growth. When applied to the soil inoculum of Glomus intraradices plants b ecome resistant to the inhibitory effect of fungicide «Azofos».
Keywords: arbuscular mycorrhizal fungi, Clematis tangutica, dark-colored septate endophytic fungi, endophytic fungi, fungicides, growth of springs of Clematis tangutica, inoculum of Glomus intraradices, intensity of mycorrhization
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