Determination of Some Virus Diseases Infecting Dahlia Species Grown for Landscape Purposes in Konya Province Parks and Home Gardens by Serological Methods
2022
Serkan Yeşil
In this study, it was aimed to reveal some viruses that are a problem in Dahlia plants grown for ornamental plants in parks and home gardens in Selçuklu, Karatay and Meram districts of Konya. For this reason, in the 2019 summer, leaf samples were taken from 152 Dahlia plants showing symptoms similar to virus disease symptoms such as mosaic, deformations, yellowing, blight on the leaves and stunted plants. Possible infections of Cucumber mosaic virus (CMV), Tomato spotted-wilt virus (TSWV) and Impatiens necrotic spot virus, (INSV) on these leaves were tested by serological-based DAS-ELISA (Double Antibody Sandwich- Enzyme Linked Immuno Sorbent Assay) method. According to DAS-ELISA results, it was determined that 46.71% of the samples were infected with at least one of these three viruses. In addition, TSWV was detected as the most common virus with a 38.82% relative incidence in the samples, followed by CMV (27.63%). Mixed infections of the viruses were also detected in the leaf samples tested. As a result of the tests, only CMV + TSWV double infection was detected in a total of 30 samples. On the other hand, INSV infection was not detected in any of the leaf samples tested. As a result of survey studies, the average of prevalence rate of virus diseases in Dahlia plants grown in Konya was calculated as 69.56%. Moreover, it was determined that virus diseases were most common in Selçuklu district (75.47%). This is the first report of CMV and TSWV on Dahlia spp. in Türkiye.
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