Browsing by Author "Arslan, N."

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The Effect of Gibberellic Acid on Germination of Rosehip Seeds (Rosa Canina L.)
(int Soc Horticultural Science, 2010) Alp, S.; Ipek, A.; Arslan, N.
Rosa canina L. is one of the 25 Rosa species that grows naturally in Anatolia and spreads widely. The fruits of R. canina contain high levels of vitamin C. For this reason, the fruits of naturarally grown R. canina are picked and used to produce jam, marmelade, tea, and fruit juice. This plant is also used as a rootstock for ornamental roses and erosion prevention in the landscape. To meet the increasing demand, in Turkey R. canina and some other Rosa species are being put into production. In propagation using seed, dormancy constitutes a major problem. Several methods have been tried to eliminate this problem. In this study, the effect of GA(3) treatments on seed germination has been analysed. Seeds of a R. canina, genotype with small prickles were used. Treatment rates of control (non-soaked) 0 (distilled water), 250, 500, 1000 and 2000 ppm GA(3) were applied for 6 hours to the seeds. The seeds were germination in a cold greenhouse. During the first year, germination percentages ranged between 0.8 (control) - 5.3 (2000 ppm). Germination crates were kept another year and the germination rates in the second year ranged between 61.0 (250 ppm) - 76.5 (Control). It is useful to try, beside hormone practices, the other practices which will eliminate dormancy in order to increase the germination percentages in the first year. Being kept for two years afters its collection seeds of R. canina show a high level of germination without any additional process.
High Altitude and Blood Pressure in Children
(2003) Arslan, S.; Arslan, N.; Soylu, A.; Akgün, C.; Tepebasili, I.; Türkmen, M.; Kavukçu, S.
We aimed to evaluate the blood pressure of children who had similar demographic characteristics but lived at different altitudes. Blood pressure of the children attending primary schools in Izmir (sea level: n = 425) and Van (altitude: 1725 m, n = 291) were measured by mercurial sphygmomanometer for this study. They were similar with respect to age, sex, weight, height, and BMI. Mean age of the children was 10.51 ± 0.87 years (range: 9 to 12 years), and 358 (50 percent) of them were female. Mean systolic blood pressure was significantly higher in the children living in Van than in the children living in Izmir (104.72 ± 11.2 vs. 97.96 ± 25.5 mmHg, respectively, p < .001). Similarly mean diastolic blood pressure was significantly higher in the children living in Van than in the children living in Izmir (63.98 ± 9.3 vs. 59.91 ± 10.0 mmHg, respectively, p < .001). When blood pressure was evaluated with regard to height percentile, the number of children with a blood pressure over 90 percentile were 19 (4.5 percent) and 48 (16.5 percent) for systolic blood pressure, and 25 (5.9 percent) and 37 (12.7 percent) for diastolic blood pressure among the children living in Izmir and Van, respectively (p < .001). Systolic and diastolic blood pressures were found to increase in parallel to the increase in body mass index in children living in Van (r = 0.358, p < .001 and r = 0.235, p < .001, respectively). However, blood pressures were not correlated to body mass index in children living in Izmir. A difference of 1700 m in altitude was associated with higher systolic and diastolic blood pressure levels in children with similar demographic characteristics, and at this altitude, body mass index and blood pressure showed a positive correlation. Copyright © 2004. All rights reserved.
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.