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    EFFECTS OF VERMICOMPOST FERTILIZER ON THE YIELD AND OIL QUALITY IN SUNFLOWER (Helianthus annuus L.) VARIETIES
    (Parlar Scientific Publications (P S P), 2021) Gul, Volkan; Gidik, Betul; Girgel, Umit
    This study was carried out in 2018 on an experimental field of Bayburt University in order to demonstrate the effect of different doses of vermicompost on the yield and oil quality in oilseed sunflower varieties. The experiments were carried out in randomized full-block design with three replicates. In the experiments, it was found that administering 100 kg da(-1) of vermicompost to the sunflowers yielded the best results in terms of grain yield (130.81 kg da(-1)), fat ratio (48.21%). and fatty acids parameters (saturated fatty acid ratio 15.30%. unsaturated fatty acid ratio 84.71%). In conclusion, we are of the opinion that, although there is an insufficient number of studies on oil crops. with the help of similar future studies in which vermicompost and other organic fertilizers are compounded, a humanand environment-friendly organic production can be realized by increasing the yield as well as the quality.
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    Fatty Acid Composition and Biodiesel Quality of Brassica nigra, Brassica napus and Sinapis arvensis Seeds
    (2023) Gıdık, Betül; Gül, Volkan; Onemlı, Fadul; Girgel, Umit
    The increasing world population and developing industrial areas increase the need for energy. This situation makes alternative and renewable energy sources and the efficient use of these sources more valuable. In this study, the seeds of Sinapis arvensis, Brassica nigra and Brassica napus from Brassicaceae family grown in ecological conditions of Bayburt province of Türkiye, to determine the usability potential of wild species in biodiesel production. Biodiesel quality characteristics and fatty acid composition were determined for the first time for the region using GC-MS. The oil yield of the species included in the study from the Brassicaceae family was found to be between 30.29% and 46.02%. In addition, linolenic acid (7.62-13.70%) values were determined the lowest in Brassica napus and the highest in Brassica nigra. In terms of flash point (194-195?), B.napus and S.arvensis were the closest species. Fatty acid composition and biodiesel quality analysis results of S.arvensis and B.nigra were similar to B.napus. It has been observed that the wild species S.arvensis and B.nigra have renewable energy production potential in terms of biodiesel quality characteristics and fatty acid composition.