Determination of Mycorrhizae Interactions and Pathogenicity of Rhizoctonia solani Kühn Isolated from Strawberry and Xanthium strumarium

Authors : Ayşenur BAYÖZEN, Ayhan YILDIZ

Pages : 53-57

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Publication Date : 2009-12-01

Article Type : Research Paper

Abstract :The effects of mycorrhizal fungi on the disease severity of Rhizoctonia solani Kühn., and the role of mycorrhizal fungi on strawberry insert ignore into journalissuearticles values(Fragaria vesca L.); growth were investigated. Strawberry seedlings were inoculated with BioOrganics as a mycorrhizal preparation against 2 R. solani isolates, which were isolated from strawberry insert ignore into journalissuearticles values(RsFv); and Xanthium strumarium insert ignore into journalissuearticles values(RsXs);. The highest disease severity in strawberry roots was observed after inoculation with RsFv at a rate of 67%. On the other hand, the lowest disease severity in strawberry roots was at 31% for 15BRsFv insert ignore into journalissuearticles values(15 days before inoculation with BioOrganics and RsFv);. Similarly, the highest disease severity in plants was seen with RsXs inoculated plants at a rate of 77%. The disease severity in plants was at 35% for 15BRsXs insert ignore into journalissuearticles values(15 days before inoculation with BioOrganics and R. solani isolated from Xanthium strumarium L.);. When strawberry leaf and shoots were evaluated, the disease severity varied as follows: 45% for RsFv, 40% for RsXs, 15% for BRsFv, 10% for BRsXs, 15% for 15BRsFv, and 5% for 15BRsXs. According to these results, there was no significant difference between the pre-inoculation of mycorrhizae insert ignore into journalissuearticles values(15 days); and simultaneous inoculation with a pathogen. Based on our findings, we concluded that when all plant growth parameters were treated with mycorrhizae insert ignore into journalissuearticles values(either alone or with R. solani); strawberry plant growth was greatly improved, and our observations showed the beneficial effects of mycorrhizae on yield.
Keywords : Strawberry, mycorrhizae, Rhizoctonia solani