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Belgrade, Serbia

Zecevic V.,Megatrend University | Boskovic J.,Megatrend University | Micanovic D.,Serbian Chamber of Commerce | Dozet G.,Megatrend University
Cereal Research Communications | Year: 2010

A field experiment was conducted to investigate the effect of nitrogen fertilizer applications on some quality components of wheat. For winter wheat genotypes (Ana Morava, Vizija, L-3027 and Perla) were grown at Small Grains Research Centre Kragujevac in three years (2005-2007) at three levels of nitrogen fertilization (N 1 = 60 kg N ha -1 , N 2 = 90 kg N ha -1 and N 3 = 120 kg N ha -1 ). Zeleny sedimentation value and wet gluten content in divergent wheat genotypes were analyzed in depending on the nitrogen nutrition and years. Nitrogen fertilization significantly increased sedimentation value and wet gluten content. The highest increasing of both traits established in N 3 variant when applied 120 kg ha -1 of nitrogen. Genotypes reacted differently to N level increasing. Cultivar Perla had the highest value of sedimentation and wet gluten content and this cultivar the best reacted to increasing N levels. Statistically significant differences for sedimentation value and wet gluten content were found among cultivars, years, N-doses and for all their interactions. The results have shown that the best quality of wheat was with nitrogen applied of 120 kg N ha -1 . Correlation between nitrogen applications and sedimentation value was significant (r = 0.208*), while between N-doses and wet gluten content was high significant (r = 0.290**). Sedimentation value and wet gluten content positively correlated (r = 0.783**). © 2010 Akadémiai Kiadó © 2010 Akadémiai Kiadó.

Ivanovic A.,Serbian Mining and Metallurgy Institute | Marjanovic V.,Serbian Mining and Metallurgy Institute | Dimitrijevic S.,Serbian Mining and Metallurgy Institute | Ignjatovic M.,Serbian Mining and Metallurgy Institute | And 2 more authors.
Technics Technologies Education Management | Year: 2012

This work presents the investigation results of Cu-Sn, Cu-Te and Cu-Sn-Te systems, aimed to develop non-toxic alloys that could completely respond to the exploitation requirements in the transport electrification networks and, therefore replace presently used alloys of Cu-Cd system. Mechanical and metallographic testing determined the chemical composition of the alloy, which has satisfactory electro-conductivity (86.21% IACS), tensile strength (400N/mm2) and size of re-crystallized grain in the defined overall deformation degree (50%).

Grandov Z.,University for Business Engineering and Management | Mitic B.,Advertising | Vojvodic A.,Serbian Chamber of Commerce
Technics Technologies Education Management | Year: 2011

One of the key prerequisites for successful im plementation of the process of restructuring in the economies of the European transition countries and their reintegration into global financial and trade streamlines was opening of these economies to for eign investors. Foreign direct investments may have double impact on total economic performances of the countries in transition: the first impact is the cap ital component of the investment package, having in mind the lack of necessary finances for new invest ments. The second effect of foreign direct invest ment refers to positive changes in exports structure under the influence of the inflow of foreign direct investments. The more intense exports technologi cally, the stronger impact would be. In this paper, the focus is on a significant statistical relation between export of goods and inflow of foreign direct invest ments (FDI), based on the results of the corelational analysis. Intensification of exports represents an im portant precondition for the increase of economic activity of a country. It is particularly important when the country is small, with modest resources, first of all due to the fact that on the domestic market economy of scope cannot be achieved (being one of the most important conditions for strengthening competitive position of the domestic companies abroad), as well as due to the lack of the basic pro duction inputs, goods and services from domestic sources, because of which exports is on the increase, and consequently the need to intensify exports, so as to keep foreign trade balance. Transitional countries which were able to strengthen the exports sector and provide high level of exports, have gone through the process of transition most quickly and easily, man aging to come close to the most developed countries of the European Union.

Zecevic V.,Megatrend University | Boskovic J.,Megatrend University | Knezevic D.,University of Prishtina | Micanovic D.,Serbian Chamber of Commerce
Chilean Journal of Agricultural Research | Year: 2014

Planting density is important factor which influence yield and quality of wheat (Triticum aestivum L.) For this reason, in scientific investigations is constantly investigated optimization of plant number per unit area. The objective of this study was to determine the influence of seeding rate in grain quality of winter wheat cultivars. The experiment was conducted with four winter wheat genotypes ('Ana Morava', 'Vizija', 'L-3027', and 'Perla') at the Small Grains Research Centre of Kragujevac, Serbia, in 3 yr at two seeding rates (SR1 = 500 and SR2 = 650 germinating seeds m-2). The 1000-kernel weight, Zeleny sedimentation, and wet gluten content in divergent wheat genotypes were investigated depending on the seeding rate and ecological factors. Significant differences in quality components were established between investigated seeding rates. The highest values of all investigated quality traits were established in SR2 variant when applied 650 seeds m-2. Genotypes reacted differently to seeding rate. 'Perla' in average had the highest mean sedimentation value (42.2 mL) and wet gluten content (33.76%) in SR2 variant and this cultivar responded the best to seeding rate. Significant differences for sedimentation value and wet gluten content were found among cultivars, years, seeding rate, and for all their interactions. Also, ANOVA for 1000-kernel weight showed highly significant differences among investigated varieties, seeding rate and growing seasons, but all their interactions were not significant. In all investigated genotypes, better quality was established in SR2 variant when applied 650 seeds m-2.

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