Browsing by Author "Turkoglu, N."

Now showing 1 - 4 of 4

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.
Determination of Physiological Responses on Hyacinth (Hyacinthus Orientalis) Plant Exposed To Different Salt Concentrations
(Academic Journals, 2011) Turkoglu, N.; Erez, M. E.; Battal, P.
Plant growth is restricted by many environmental factors. Soil salinity is considered as an important agricultural problem for dry and semi-dry fields in many regions around the world. It is known that salinity is an important stress factor restricting water and nutrient intake of plants. In this study, the physiological responses of hyacinth (Hyacinthus orientalis) exposed to different salt concentrations (0, 50, 100, 200 and 400 mM) were investigated. The stomata status, osmotic potential, proline content, chlorophyll and caretonoid contents and protein variances were examined in the plants exposed to salt. The physiological responses of the hyacinth varied depending on the salt concentration. Stress was kept under control at concentrations of 50, 100 and 200 mM; however, bulbs were decayed and necrosis was formed on the leaves at concentration of 400 mM. This study on hyacinth will help us to learn about tolerance mechanisms raised by plants with bulb against salt stress. It was seen in this study that the stomata size decreased when the salt concentration was increased and the chlorophyll and caretonoid contents also decreased. A significant decrease was seen in proline content and it increased at 400 mM and some protein bands which existed in control group disappeared in electrophoresis study.
Effects of Different Concentrations of Carbohydrate Forms on Orchis Sancta L. Propagation in Vitro
(Corvinus Univ Budapest, 2018) Bozdemir, H.; Cig, A.; Turkoglu, N.
In this study, the goal was the germination and propagation of Orchis sancta L. which is endangered due to uncontrolled collection and used in obtaining salep, in vitro conditions. By the addition of 0 (control group), 20, 40, 60, 80, and 100 g/l concentrations of sucrose, glucose, maltose, galactose, and fructose of carbohydrate forms into Van WaesDebergh culture medium, sugars of effects were determined on germination and development of Orchis sancta L. seeds. In the study, germination, formation of protocorm and shoot periods and ratios were examined. The highest average germination ratio was obtained as 77.85% in Maltose40, the lowest average as 44.36% in Galaktose100 mediums. In protocorm formation, when the highest average ratio was detected as 68.53% in Sucrose100, the lowest average as 25.33% in Fruktose100 mediums. Germination period as 12.50-21.33 days, protocorm formation period as 22.50-50.83 days and shoot formation period as 50.66-105.33 days' intervals were determined.
Exploration of Effects of Bleeding Water of Grapevine on in Vitro Germination of Single-Point Endemic Lophanthus Turcicus Seeds
(Scibulcom Ltd, 2017) Turkoglu, N.; Ozudogru, A.; Firat, M.; Keskin, N.; Tuncer, B.
Turkey is highly rich in endemic plant species. Natural spreads of these species are subjected to the risk of extinction through pressures exerted by various factors, especially by anthropogenic factors. Current traditional propagation and conservation methods are rarely sufficient to protect them, thus exploitation of the biotechnological approaches is required, as well. Lophanthus turcicus Dirmenci, Yildiz and Hedge, is a single-point endemic species of Turkey, found in a very narrow area of Van region. Present study explored the efficiency of in vitro germination for this valuable delicate species, and highlighted the promising effects of the artificial medium composed of agarised bleeding water (BW) of grapevine in vivo conditions. In addition to BW medium, also Murashige and Skoog (MS), Gamborg B5, Shenk and Hildebrandt (SH) and White (WH) media were tested for their efficiency. In vitro germination trials were performed both under 16 h photoperiod and in darkness. 90% of germination was achieved when decontaminated seeds were cultured on BW medium, providing a germination rate of 3.5 days and emergence rate of 8.12 days in 16 h photoperiod.