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Full-Text Articles in Life Sciences
Detection Of Four Apple Viruses By Elisa And Rt-Pcr Assays In Turkey, Kadri̇ye Çağlayan, Çi̇ğdem Ulubaş Serçe, Mona Gazel, Wilhelm Jelkmann
Detection Of Four Apple Viruses By Elisa And Rt-Pcr Assays In Turkey, Kadri̇ye Çağlayan, Çi̇ğdem Ulubaş Serçe, Mona Gazel, Wilhelm Jelkmann
Turkish Journal of Agriculture and Forestry
Plant samples were collected from the main apple growing provinces of Turkey in order to evaluate the incidence of 4 important apple virus diseases during spring 2004. Collected leaves and shoots were tested using enzyme linked immunosorbent assay (ELISA) and reverse transcription polymerase chain reaction (RT-PCR) for Apple mosaic virus (ApMV), Apple stem grooving virus (ASGV) and Apple chlorotic leaf spot virus (ACLSV). Since no commercial antiserum is available, Apple stem pitting virus (ASPV) was tested only using RT-PCR and the results were compared. A total of 174 apple samples were collected from varietal collections belonging to governmental and university …
Technical Efficiency Analysis Of Tobacco Farming In Southeastern Anatolia, Mustafa Necat Ören, Tuna Alemdar
Technical Efficiency Analysis Of Tobacco Farming In Southeastern Anatolia, Mustafa Necat Ören, Tuna Alemdar
Turkish Journal of Agriculture and Forestry
The technical efficiencies of tobacco farms in Southeastern Anatolia were estimated with parametric and non-parametric methods. Data obtained from 149 tobacco farms were used in the empirical analysis. Results obtained with an output oriented Data Envelopment Analysis (DEA) were compared to those obtained from Stochastic Frontier Analysis (SFA) and the differences are discussed. According to the results of the DEA model, mean efficiency of tobacco farmers was found to be 0.45 and 0.56 for Constant and Variable Returns to Scale (CRS and VRS) assumptions, respectively. Mean technical efficiency obtained with the SFA model was found to be 0.54. A strong …