Browsing by Author "Yilmaz, Hudai"

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Changes of Some Macro- and Micronutrients Accumulations of Strawberries Plants (Fragaria X Ananassa Dutch L.) Under Salt Stress
(Asian Journal of Chemistry, 2009) Yilmaz, Hudai; Yildiz, Kenan; Kina, Arzu; Oguz, H. Ibrahim
In this study, gloria and kabarla strawberry varieties plants are taken for trial at solid medium culture. During the development, Hoaglan solution is added salt (NaCl) doses of 0 (control), 500, 1000,1500 mg L-1. At the end of the trial, all plant parts above the soil level (aerial parts) are used for the determination of macro (N, P, K, Ca, Mg) and micro (Mn, Zn, Cu, Fe, B) elements, At the analysis done, it was determined that both of the varieties are affected from the salt stress and the accumulation levels change according to the salt doses. It was observed that the kabarla variety with the development characteristics is more tolerable to salt stress when compared with the gloria variety. It was observed that the salt applications on kabarla variety caused an increase in the accumulation of N, Ca and Mn and the accumulation of other elements led to a decrease. In the gloria variety, the increasing salt doses led to a decrease in the accumulation of all the elements whereas at the elements Zn, Fe and B in the 500 mg L-1 application which is the lowest water dose, an increase with respect to the control was determined. In the gloria variety, increase of Zn, Fe and B at 500 mg mg L-1 salt dose turned to a decrease again after the increase in the following doses.
Effect of Various Development Periods on Accumulation of Some Mineral Elements on the Leaves of Strawberry Cultivars (Fragaria X Ananassa Dutch. L)
(Asian Journal of Chemistry, 2007) Yilmaz, Hudai; Muradoglu, Ferhat; Yildiz, Kenan
An experiment has been set up with Tudla, Muir, Douglas, Rupella, Moraline, Evita, Aiko, Northeastern, Tioga, Elvira and Delmarvel cultivars for mineral accumulations of nitrogen, phosphorus, potassium, calcium, magnesium, manganese, zinc, copper, iron and boron on plants' leaves were analyzed in three different periods which are fruit formation (May 26th), stolon formation (July 13th) and beginning of resting period (September 27th). It was determined that generally mineral elements accumulation change in relation to development periods. In addition, the periodic change in nitrogen, potassium, manganese, zinc, copper and boron minerals were more evident. No clear change was seen in phosphorus and calcium. Despite that changes were seen in iron mineral at the cultivar level, this situation did not present itself in general averages. When every cultivar is analyzed by itself, there were clear differences among cultivars. Every cultivar's mineral element accumulation level has shown variation. Differences among cultivars' averages have been found statistically significant.
The Influence of Nacl Salinity on Some Vegetative and Chemical Changes of Strawberries (Fragaria X Ananssa L.)
(Academic Journals, 2008) Yilmaz, Hudai; Kina, Arzu
In this study, 500, 1000 and 1500 mg I-1 salt applications in Kabarla and Gloria cultivars of strawberry in solid media culture were performed along with Hoagland nutrient solution. In the experiment, some vegetative growth and chemical changes were determined in the plants to which salt (NaCl) was applied compared with the control. At the end of the experiment, it was observed that Kabarla cultivar grew better under saline conditions compared to Gloria. It was observed that vegetative growth was generally restricted, depending on the increase in salt applications. Especially, damages on leaves became significant. It was determined that the increased salt doses affected chlorophyll and malondialdehyde levels, but these values were not sufficient to determine salt- tolerant cultivars. It was found that Na+ ion accumulation on root, crown and leaves of the plant and ion accumulation ratios of K+/Na+ and Ca2+/Na+ had significant effects on tolerance to saline conditions. Higher Na+ ion accumulation and ion accumulation ratios of K+/Na+ and Ca2+/Na+ were obtained in case of Kabarla, which was understood to grow better under saline conditions. These values stayed lower in case of Gloria.
Some Chemical Composition of Walnut (Juglans Regia L.) Selections From Eastern Turkey
(Academic Journals, 2010) Muradoglu, Ferhad; Oguz, H. Ibrahim; Yildiz, Kenan; Yilmaz, Hudai
The aim of this study was to determine the chemical and mineral contents of eighteen walnut genotypes which were newly selected from Hizan (Bitlis) located in Eastern Anatolia. The protein, total fat, total oil (saturated and unsaturated oil) compositions and mineral contents were investigated. It was found that the average value for protein was 18.1% and for total fat was 58.2%. Saturated fatty acids composition values were less than the values of monounsaturated fatty acids composition and polyunsaturated fatty acids composition in all genotypes. Among the identified fatty acids, linoleic acid (50.58 - 66.60%) was the predominant fatty acid followed by oleic acid (14.88 - 28.71%) and linolenic acid (9.16 - 16.42%) in all genotypes. The other fatty acids were found in trace contents. The minimum and maximum macronutrient contents of walnut were determined as mg100 g(-1) for K (911.0 - 684.3), P (434.7 - 356.2), Ca (756.7 - 388.2), Mg (444.0 - 330.8) and Na (48.9 - 26.1) while minimum and maximum micronutrient contents of walnut were determined for Fe (6.6 - 4.3), Cu (2.8 - 1.8), Mn (5.7 - 2.7) and Zn (4.3 - 2.7). The potassium contents were found to be higher than those of the other minerals in all kernels of the walnuts.