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Articles by Semih Erkan
Total Records ( 2 ) for Semih Erkan
  Yusuf Yanar , N. Dide Kutluk and Semih Erkan
  Purpose of this study was to determine the alternative weed hosts of two important viral diseases of sugar beet Beet necrotic yellow vein virus (BNYVV) and Beet soil borne virus (BSBV). In addition to the existing hosts of BNYVV and BSBV, different weed species were collected at production areas of sugar beet in North East of Turkey and both viruses were detected by ELISA. For BNYVV and its vector Polymyxa betae six weed species were determined as an alternative host of BNYVV. The highest absorbance values of ELISA were obtained from Solanum nigrum (0.725). This is the first report of Cichorium intybus, Heliotropium eurapaeum and Plantago major as an alternative host of BNYVV. None of the weed species collected from infested sugar beet fields was infected by BSBV.
  Nazli Dide Kutluk Yilmaz , Yusuf Yanar , Hikmet Gunal and Semih Erkan
  Beet necrotic yellow vein virus (BNYVV) and Beet soilborne virus (BSBV) are the important soilborne virus diseases in the production areas of sugar beet. A survey was carried out to detect these viruses in soil samples using bait plant test and double antibody sandwich-enzyme-linked immunosorbent assay (DAS-ELISA) and triple antibody sandwich-ELISA (TAS-ELISA) in sugar beet production areas in Tokat, Turkey in 2001. Of the 26 soil samples taken from 8 districts in Tokat province, it was found that 23 samples (85.5%) were infected with BNYVV and 24 samples (92.3%) with BSBV. In 2002, total 49 root samples were tested for the presence of these viruses by ELISA. The incidence of BNYVV (67%) was greater than that of BSBV (8%). Furthermore, in this study it was determined the relationships between physical and chemical properties of soils and the appearance of BNYVV and BSBV. But, it could not determine any connection between infectious potential of viruses and soil properties.
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