Abstract
Soil samples from both healthy and diseased paprika roots were tested to identify their mycoflora. Thirty-one species belonging to 16 genera were collected from rhizosphere and rhizoplane samples. The most frequently isolated fungi were Aspergillus flavus, A. niger, A. terreus, Fusarium oxysporum, Penicillium jensenii and Trichoderma harzianum. Fusarium oxysporum was the most common Fusarium species in the rhizoplane samples of diseased roots and identification was confirmed by RAPD-PCR technique. Trichoderma harzianum, T. pseudokoningii and Glioclaium roseum were chosen to study their biological control efficiency against Fusarium oxysporum. These fungal species reduced the percentage of seedling infection to 25, 40 and 50%, respectively. With the increasing of fungicide (Folicur and Ridomil) doses the dry weight of F. oxysporum decreased. Also, the increasing of fungicide dose lead to a slight decrease in the dry weight of T. harzianum, T. pseudokoningii and Glioclaium roseum.
Published Version
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