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Gerbera spp., which is in the Asteraceae family, is the most widely cultivated cut flower ornamental plant in Türkiye after carnation. Approximately 74% of Türkiye's production is met from Antalya province. Virus diseases are a problem in the cultivation of Gerbera as they significantly reduce the yield and quality. In this study, which was carried out to detect some virus diseases seen in Gerbera production areas in Antalya province, surveys were carried out in commercial production areas in the 2021-2022 production season. For this purpose, a total of 112 leaf samples, which are thought to be infected with viruses, were collected from 100 Gerbera plants showing symptoms similar to virus disease symptoms and 12 selected weeds regardless of the presence of symptoms. These leaf samples, which were later brought to the laboratory, then were tested by the Double Antibody Sandwich Enzyme-linked Immunosorbent Assay (DASELISA) method to detect infections of Tomato spotted wilt virus (TSWV), Cucumber mosaic virus (CMV), Tobacco streak virus (TSV) and Impatiens necrotic spot virus (INSV). As a result of the tests, TSWV (41.9%), CMV (1.7%) and TSV (37.5%) infections were detected in Gerbera plant samples. In addition, TSWV (25%) infections were most common in weed samples, followed by TSV (16%) and CMV (8.3%) infections. The presence of INSV virus was not detected in any of the leaf samples tested by DAS-ELISA. With this study, TSWV, TSV and CMV infections in Gerbera production areas in Türkiye were revealed for the first time. [ABSTRACT FROM AUTHOR]

This research aims to determine the cost and profitability analysis of farmers' greenhouse cut flower (carnation, gerbera and lisianthus) production in Antalya. In 2018, the cut flower production in Antalya province accounted for about 56.04% of Turkey's cut flower production. Snowball sampling methods were used to select the cut flower growers and the sample size was calculated as 53 farmers. The data obtained from the enterprises' cut flower production was obtained by face-to-face interviews with the farmers using the producer questionnaire developed by these researchers. The data for the study was obtained in 2018. According to the study's conclusions, the most important cost factor in the greenhouse cut flower production process in the enterprises interviewed was the variable cost. The variable cost share of the total production cost in carnation production was 56.96%, 59.44% in gerbera production, and 64.03 in lisianthus production. The fixed cost percentage was 43.04%, 40.56% and 35.97%, respectively. As for cost items, the most important elements were permanent labour, fertiliser, seedlings, pesticide and land rent. The relative profit value, which better measures the return of production activities, in greenhouse cut flower production was calculated as 1.47 in carnation enterprises, 1.60 in gerbera enterprises and 1.26 in lisianthus enterprises. [ABSTRACT FROM AUTHOR]