Browsing by Author "Turan M."

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Development of organic phosphorus vermicompost from raw phosphate rock using microorganisms and enzymes and its effect on tomato yield
(2023-11-01) Turan M.; Kocaman A.; Tüfenkçi Ş.; Katırcıoğlu H.; Güneş A.; Kıtır N.; Giray G.; Gürkan B.; Ersoy N.; Yildirim E.
Development of plant-friendly vermicompost using novel biotechnological methods
(2023-09-01) Kocaman A.; Turan M.; Tüfenkçi Ş.; Katırcıoğlu H.; Güneş A.; Kıtır N.; Giray G.; Gürkan B.; Ersoy N.; Yıldırım E.
Effect of calcium on the alleviation of boron toxicity and localization of boron and calcium in cell wall of wheat
(2009-12-01) Turan M.; Taban N.; Taban S.
A greenhouse experiment involving four levels of B (0, 5, 10 and 20 mg B kg-1 as boric acid, H3BO3), and three levels of Ca (0, 100 and 200 mg Ca kg-1 calcium chloride, CaCl2) were conducted on wheat plants (Triticum aestivum L. 'Gerek-79'). Boron toxicity symptoms strongly occurred at 10 and 20 mg B kg-1 levels with and without applied Ca. Without applied calcium, boron toxicity symptoms were also weakly expressed at 5 mg B kg-1 level. Growing wheat plants with application of high levels of Ca partially alleviated the toxicity symptoms. Shoot and root dry weight of plant was strongly depressed and decreased by applied boron; however, Ca applications reduced the inhibitory effect of B on the plant growth. Shoot and root boron concentrations and boron uptake were increased with increasing B application, but decreased with Ca applications. Controversially, applied calcium increased calcium concentrations and uptake and decreased boron concentrations and uptake. Most of total boron and calcium were localized in the cell wall of plant. While applied boron increased the concentration of B on the cell wall, it decreased the concentration of Ca on the cell wall. In addition, applied calcium increased the cell wall calcium concentration, whereas decreased the cell wall boron concentration. It was determined that boron toxicity could be alleviated by addition of calcium in plant growing media.
Effect of salt stress on growth, stomatal resistance, proline and chlorophyll concentrations on maize plant
(2009-09-01) Turan M.; Elkarim A.; Taban N.; Taban S.
In this study, effect of applied NaCl on growth and stomatal resistance, proline and total chlorophyll concentrations of maize plant (Zea mays L. cv: RX 947) was investigated. The experiment was arranged in a completely randomized design with four replications under the greenhouse condition. The experimental soil was salinized with NaCl at the rates of 0 and 100 mM NaCl. Growth of the maize plants was inhibited by salinity. Applied NaCl significantly decreased dry mass of maize plants. Stomatal resistance and proline concentrations were increased by high salinity, while total chlorophyll concentration was decreased. NaCl caused to increase Na and Cl concentrations of plant. © 2009 Academic Journals.
Metal concentrations in surface sediments of Beyler reservoir (Turkey)
(2012-02-01) Findik O.; Turan M.
The accumulation of metals (Iron, Aluminium, Zinc, Copper, Manganese, Boron, Chromium, Nickel, Cadmium, Lead) was seasonally (November 2009 to July 2010) measured in sediment samples taken from different areas of Beyler reservoir which is an important water source for irrigation in West Black Sea region (Turkey). Metals in sediment samples were analyzed by ICP-OES. The difference between the stations except for Zn metal (p < 0.05) has not been considered as important and a statistical difference between seasons for Fe, Ni metals (p < 0.01) and Cu metal (p < 0.05) has been observed. The magnitude of metal concentrations in sediment was determined as Aluminium > Iron > Manganese > Zinc > Chromium > Copper > Boron > Nickel > Lead > Cadmium. Enrichment factor (EF) for all metals has been calculated (EF < 1). In the evaluation done by considering the EF values, it is seen that the metal concentrations found in the Beyler Dam Lake sediment stem from the natural composition of the sediment. © 2011 Springer Science+Business Media, LLC.