Browsing by Author "Koyuncu, M."
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Article Allium Pervariensis, Sect. Allium (Amaryllidaceae), a New Species From Siirt Turkey(Taylor & Francis Ltd, 2018) Firat, M.; Koyuncu, M.; Eksi, G.Allium pervariensis, a new species of sect. Allium, is described and illustrated from southeastern Anatolia, Turkey. It is a narrowly distributed geophyte in Siirt Province and its closest relatives are A. pustulosum Boiss. & Hausskn, A. karyeteini Post, but it is clearly differentiated due to outer tunic, perigon, pedicel, leaf and filament, and bracteoles characteristics. In this study, a comprehensive description, detailed illustration of A. pervariensis and distribution map, identification key are provided for A. pervariensis and related taxa.Article Basic Elements of the Traditional Garden Identity in the City of Van(Academic Journals, 2010) Alp, S.; Ozturk, S.; Turkoglu, N.; Koyuncu, M.Garden culture in the architectural patterns in and around the city of Van in the East Anatolian region of Turkey has been a tradition from the Urartian Iron Age Kingdom in Eastern Anatolia to the present. Until the end of the nineteenth century, the city of Van had an exclusive residential area where houses were surrounded by gardens. In this study, by exploring the texture of the old gardens in some current residential areas of the Van city center and its surroundings, we evaluated depending on the house-garden relationship, the street-house relationship, and size, garden elements, types of the plants. In this study the garden culture and understanding of the landscape will be brought from the time of the Urartians to our time and to the future. Further, an understanding of the traditional use of plant types in the city and their ornamental use will be recorded and perpetuated for regenerating into garden culture.Other Conference Object Botanical and Ecological Features of Rosa Laxa Retz Ssp Harputense T. Baytop (Kismiri Rose)(int Soc Horticultural Science, 2010) Alp, S.; Koyuncu, M.The tradition of gardening and growing ornamental plants goes back till Urartians, who lived 3000 years ago, in the Van region. Therefore, one often comes across different ornamental plants in old and traditional gardens in Van. Some of these are old garden roses, which have different origins and about which there is only little information. In this study, some information will be given about the botanical features and growing environment of the recently identified taxon, Rosa laxa Retz var. harputense T. Baytop. It grows in the gardens of the region but has not sufficiently been introduced to the scientific world. When it was first encountered in 1995, the identification key, concerning the identification of roses in P. H. Davis' "Flora of Turkey" (Volume IV, 1972), which is the primary source to identify the roses grown in Anatolia, was not adequate. This rose was both first identified in 1999 and published by T. Baytop in his book called "Old Ottoman Garden Roses (2001)". It has been understood, with the later studies, that this rose is a new variety that has not been identified so far. This kind of rose, known publicly as "kismiri rose," is one which has remontancy and pompon shaped, double flowers. Its flowers are fragrant, borne on stems in groups of 2-6 or singly, 2-2.5 cm in diameter, and petals that are white with lemon coloured bases. This rose, growing in the old gardens of Van and Elazig and in the monasteries in the region, is a variety of Rosa laxa Retz, which naturally grows in East Asia, North-west China and Siberia. Its origin is not exactly known or when and how this rose came to this region from such a long way.Other Other Conference Object The Impact of Digital Competence on Academic Performance of Students(International Multidisciplinary Scientific Geoconference and EXPO, 2011) Koyuncu, M.The importance of understanding the impact of digital competence has gravitated from the global business management to training activities. The world is becoming a small village by means of digital technological environment. Digital competency plays a key role in people' social, educational and occupational lives. When digital empowerment data gathered from participant were analyzed with respect to the sub dimensions such as awareness, motivation, technical access and digital competence. Many findings may be in correlation with each other. According to the research findings, young people' motivation for digital empowerment is far grater than the old people'. One more important finding is that students have the highest awareness of using digital technologies among all participants. © SGEM2011 All Rights Reserved by the International Multidisciplinary Scientific GeoConference SGEM.Conference Object Influence of Alkaline Treatments on Tensile Properties of Alpaca Fabric Reinforced Epoxy Composites(International Multidisciplinary Scientific Geoconference, 2014) Koyuncu, M.A study on the effect of alkaline treatment on tensile properties of Alpaca fabric reinforced epoxy composites is presented in paper. The treatment was carry out using NaOH solutions at different concentration. The hydrophilic nature of Alpaca fabric makes it difficult to adhere to hydrophobic epoxy and there therefore posed three problem of interfacial bonding between fabric and matrix and such treatment was need to alleviate such problem. The composite samples were tested for tensile properties determination. Some fractured samples were examined under scanning electron microscope (SEM) to study the microstructure of the materials. SEM observations on the fracture surface of composites showed that the surface modification of fabric occured and improved fibre-matrix adhesion and proved the effectiveness of the treatment © SGEM2014.Article The Influence of Pumice Dust on Tensile, Stiffness Properties and Flame Retardant of Epoxy/Wood Flour Composites(Forest Research Institute Malaysia, 2018) Koyuncu, M.This study evaluated the mechanical and flammability properties of wood plastic composite panels made from pumice powder formulations, using a conventional hand lay up method under laboratory conditions. Wood flour was stirred with pumice in order to improve the mechanical properties of the wood flour-epoxy composites. Five levels of pumice powder, 5, 10, 20, 30 and 50%, based on the composition by weight, were mixed with the wood flour. The tensile strength of the composites prepared with pumice stirred wood flour were found to increase substantially compared to those of unstirred ones. The tensile and stiffness strength of the composites improved with increasing pumice powder content, up to 50% weight. The effect of pumice on the flammability properties of wood plastic composites (WPCs) was also investigated. Flammability properties of composites decreased with addition of pumice. © Forest Research Institute Malaysia.Article Investigating the Quality of Durum Wheat Landraces and Determination of Parents To Use in Breeding Programs(Corvinus Univ Budapest, 2019) Kendal, E.; Eren, A.; Dogan, Y.; Oral, E.; Koyuncu, M.The study was conducted to evaluate the quality of durum wheat grain. For this reason, genetic resources are crucial for the identification of parents and the enrichment of the gene pool that can be used in the development of new varieties for better nutrition of people. For this purpose, 131 populations of landraces, 9 promising line and 5 new varieties were used. The experiment was set up in randomized blocks with 7 replications, according to the augmented (increased) experimental design in 2015-2016 growing season. In the study, we examined total nitrogen content, protein ratio, CIE (Commission Internationale Eclairage) wheat color analysis (L* brightness, b* jaundice, a* redness) of 145 genotypes of durum wheat seeds. According to analysis of variance, highly significant differences (P < 0.05 or P < 0.01) were determined for total nitrogen, protein content and CIE L* value, while differences were not significant for b* value and a* value. The superiority of the genotypes was determined by the first two principal components (IPC1 (principle component) and IPC2) in order to create a two-dimensional GT biplot. The sum squares of the first two components were accounted by 45.34% (PC1) and 40.03% (PC2) for genotypes. The GT (genotype x trait) biplot indicated that 9 (nine) sectors occurred among genotypes and quality parameters. On the other hand, three groups occurred among the quality parameters based on the genotypes. The scatter plot demonstrated that there is a high correlation between b* jaundice, and a* redness. The results showed that cultivars and more landraces have general adaptability for all quality parameters, while some genotypes (G79, G78), (G22, G102), (G3) and (G121, G5) showed specific adaptation for N (nitrogen), PC (protein content) and L*, a* and b* values, respectively. According to the biplot techniques, G36 came forward with the N, P and a* value and desirable landraces, G5 for b* value, G30 stable line for all quality parameters, while (G128, G61) and the majority of promising lines (L4, L6) did not come forward with any quality parameters. The results of the study indicated that the majority of landraces can be used as parents to improve the quality of durum wheat varieties. The study indicated that GT biplot can be used to evaluate the genotypes graphically to select the best genotypes for parents to use in breeding programs.Other Article Removal of Tar-Chrome Red-B Dye by Adsorption Onto Natural Diatomite(Journal of Chemical and Pharmaceutical Research, 2011) Koyuncu, M.; Riza Kul, A.In this study; the textile industry from using chromium dyes was removed from wastewater by low- cost diatomite in batch. In batch system, same particle size of diatomite (230-mesh size and surface area 49.0408 m2/g) and kept at pH5.10 and five different amounts of sorbent were used. The effect of the temperature on adsorption was evaluated with using three different temperatures. As result of the experiment, 81.072% of the chrom dyes was removed from the wastewater in conditions of using 230 mesh sieve, at 30°C temperature for 8h in batch system but chrom dyes was removal for different min in batch system,61.992%, 61.502%, 63.926%, 61.174% and 61.895% (15min, 30min, 60min, 180min and 300) respectively. Also, the equilibrium adsorption isotherms have been analyzed by Langmuir and Freundlich models. The adsorption values were fitted langmuir and Freundlich adsorption models. Langmuir adsorption capacity were found to be 25.04, 20.08 and 14.68mg/g at 25, 30 and 35 °C respectively. In addition, the filtrates were subjected to a comprehensive colorimetric appraisal using the CIE L* a* b* colour space system.Article Rose (Rosa Spp.) Genetic Resources of Lake Van Basin, Turkey: Endangered Antic Roses of Old Van Gardens(Springer, 2010) Alp, S.; Koyuncu, M.Anatolia has been an important gene center for the planting and improving of old garden roses until sixteenth century. The interest in old garden roses in Anatolia shifted to new modern roses raised in Europe after sixteenth century. Old garden roses have been able to survive in remote gardens of Anatolia such as Van gardens. In this study, the population status, flower characteristics and usage methods of old garden roses, which were planted in Van gardens and had a rich garden culture tradition since Urartu, have been investigated. As a result of this study which was carried out between 2004 and 2005, ten species, one being new, have been determined in gardens in and around Van. In terms of availability, four of these species were determined as being rare, four infrequent and two widespread in the area. The urban texture of Van has experienced a fast improvement in the last two decades as a result of modernism, and the old rose gardens, which were part of the local culture and genetic wealth, have been replaced by the big blocks of houses.Conference Object The Roses of Van and Rose Culture(International Society for Horticultural Science, 2015) Alp, Ş.; Koyuncu, M.According to some historians, the 18th century was the beginning of a change in the established culture of the Ottoman community due to the proliferation of European culture. During this period, great changes were observed in the types of plants used for decorating outdoor spaces, and in daily culture. For example, the rose, which was grown for many years in the palace gardens of Istanbul, lost its value after the importation of European roses, causing Ottoman roses to lose their traditional admiration. However, those old original Ottoman roses were preserved in some Anatolian cities and remained unaffected by the European conversion. One of these such regions is the Lake Van region in East Anatolia. Six different types of original roses were found in gardens and old graveyards in this region. Investigatons show that these roses have a great influence on Van's traditional handicrafts and cuisine. © International Society for Horticultural Science. All rights reserved.Article Secondary Metabolites From Eremostachys Laciniata(Natural Product Incorporation, 2008) Çaliş, I.; Güvenç, A.; Armaǧan, M.; Koyuncu, M.; Gotfredsen, C.H.; Jensen, S.R.From the aerial parts of Eremostachys laciniata (Lamiaceae), a new acidic iridoid glucoside, 5-desoxysesamosidic acid (1) was isolated in addition to thirteen known iridoid glucosides, 5-desoxysesamoside (2), sesamoside (3), 6β-hydroxy-7-epi-loganin (4), chlorotuberoside (5), 5-deoxypulchelloside I (6), lamalbide (7), lamalbidic acid (8), phloyosides I (7-epi-phlomiol) (9), and II (10), phlomiol (11), shanzhiside (12), shanzhiside methyl ester (13), and barlerin (8-O-acetylshanzhiside methyl ester) (14), four phenylethanoid glycosides, verbascoside (15), leucosceptoside A (16), martynoside (17), and forsythoside B (18), and five flavone derivatives, luteolin (19), luteolin 7-O-β-D-glucopyranoside (20), luteolin 7-O-(6″-O-β-D- apiofuranosyl)-β-D-glucopyranoside (21), apigenin 7-O-β-D- glucopyranoside (22), and apigenin 7-O-(6″-O-p-coumaroyl)-β-D- glucopyranoside (23). The structures of the metabolites were elucidated from spectroscopic (UV, IR, 1D- and 2D-NMR) and ESI-MS evidence, as well as from their specific optical rotations. The presence of these metabolites of three different classes strongly supports the close relationship of the genera Eremostachys and Phlomis.Conference Object Silent Guardians of Cemeteries in Turkey: Bulbous Plants(International Society for Horticultural Science, 2013) Arslan, N.; Alp, Ş.; Koyuncu, M.Cemeteries are unique and important places for many different societies. In Turkey, muslims bury their dead in cemeteries with specific methods of measurements, and they give a special importance to the cemeteries where their loved ones have been buried. It is their duty to keep those cemeteries clean, and to maintain the trees. It is also believed that plants worship God in their own way, which is why damaging grasses and trees in the cemeteries is considered inappropriate. Moreover, people usually decorate the cemeteries which hold the graves of their deceased relatives and they plant various plants on the top and in front of them. With today's urbanization there are increased regulations on the maintenance of graves. Thus, village cemeteries are a refuge for many native bulbous plants which are under threat of destruction. Planting in cemeteries eases their maintenance and they become beautiful places full of fragrant flowers and bulbous plants. In Turkey, the most common bulbous plants grown in cemeteries are: iris, tulip, daffodil, hyacinth and crown imperial. In this study, different flower bulbs that grow in different regions of Anatolia have been identified, and information is given on the bulbous plants grown in cemeteries in various parts of the country.Article Thermodynamic Parameters and Dyeing Kinetics of Wool Yarn With Aqueous Extract of Rubia Tinctorum L(Institute of Integrative Omics and Applied Biotechnology, 2014) Koyuncu, M.Wool yarn have been dyed with colorant extracted from of Rubia tinctorum L in the absence and presence of potassium aluminum sulphate and acetic acid mordant and under the optimum conditions (Dyeing of wool yarn under the optimum conditions natural pH, treatment time 1 hour, and temperature 94-98oC). It is found that the producing shades of the small different colours, ranging from red to dark red. The Kinetic and thermodynamic studies on the uptake by wool yarn have also been carried out. It is observed that this dyeing process is endothermic and spontaneous adsorption. During the dyeing process the ΔH is positive that this implies an uniform ordered distribution of dye on wool yarn.Other
