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    An examination of the effects of land use changes on nature conservation rulings in Çeşme peninsula, Turkey
    (2009) Gülgün B.; Türkyilmaz B.; Bolca M.; Özen F.
    Because of their intense vegetation and the fact that they include areas of coastline, deltas situated in the vicinity of big cities are areas of great attraction for people who wish to get away from in a crowded city. However, coasts, with their fertile soil and unique flora and fauna, need to be protected. In order for the use of such areas to be planned in a sustainable way by local authorities, there is a need for detailed data about these regions. In this study, the changes in land use of the area between Topburnu and Uçburun Musa Bey Harbour on the Çeşme peninsula, which is to the immediate west of Turkey's third largest city İzmir, from 1976 up to the present day, were investigated. In the study, using aerial photographs taken in 1976, 1995 and 2000 and an IKONOS satellite image from the year 2007, the natural and cultural characteristics of the region and changes in the coastline were determined spatially. Using aerial photographs from 1976, 1995 and 2000 and an IKONOS satellite image from the year 2007, together with "1/25,000 scale Conservation-Oriented Development Plans" prepared in 1979, 1990 and 2000 by the committee for the Preservation of Natural and Cultural Entities attached to the Ministry of Culture and Tourism of the Turkish Republic, the natural and cultural characteristics of the region and the land use changes and their connection with conservation rulings were determined spatially. In this study, spatial changes in land use over the years were compared with changing conservation rulings over the years and the emerging results have brought a new perspective to the subject in contrast to other similar studies. © Springer Science+Business Media B.V. 2008.
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    Salinity induced differences in growth and nutrient accumulation in five barley cultivars
    (2011) Türkyilmaz B.; Yildiz Aktaş L.; Güven A.
    Salinity-induced changes in growth, photosynthetic performance and nutrient accumulation were determined in five barley (Hordeum vulgare L.) cultivars, subjected to different NaCl concentrations (120 and 240 mM) under controlled conditions. According to germination test data, two of these cultivars (Suleyman Bey and Vamik Hoca) were evaluated as more tolerant while Anadolu 98, Efes 3 and Gem cultivars were assessed as less tolerant. In the early growth stage (one-week-old seedlings) salinity caused an increase of the root/coleoptile length ratio in the less tolerant cultivars while it was not changed in the more tolerant ones. In 4-week-old plants, PSII activity, chlorophyll a and chlorophyll b were not affected negatively by NaCl stress, the carotenoids being even increased. Na + and Claccumulation in all genotypes were raised by NaCl salinity and the shoots accumulated ions at least 4-fold more than the roots. The K +/Na + and Ca 2+/Na + ratio and Mg accumulation in the shoots of more tolerant Suleyman Bey and Vamik Hoca cultivars remained almost constant with control level. The study established that evolved salt tolerance strategy among the barley cultivars was based on maintenance of more cationic nutrients in shoots (K, Ca and Mg) and protection of photosynthetic apparatus in saline conditions.