Seed Production System in Romania: Levels and Correlations for Main Cereal Crops

Seed Production System in Romania: Levels and Correlations for Main Cereal Crops

Najah Naiem Mutlak (College of Management and Engineering Economic in Agriculture and Rural Development, University of Agronomic Sciences and Veterinary Medicine - Bucharest, Bucharest, Romania)
Copyright: © 2013 |Pages: 11
DOI: 10.4018/ijsem.2013010101
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This paper aims at presenting the structure of varieties and the evolution of consumption of seeds for main cereal crops. Analyzing the number of varieties and hybrids, it may be noticed that there is a growing trend. In Romania, the quantities of seeds used were variable, depending, on the one hand of the importance and expansion of the crop, and, on the other hand, on the records existing in the seed chain. For Romania, looking at the overall practices applied in relation to seed utilization a growing trend was noticed with respect to using seeds for wheat crops, but also a drop of barley and maize crops, besides the annual fluctuating consumption levels. By correlating the factors (areas and amounts of seeds) with production that may be obtained a growing trend for wheat and barley was noticed and a decreasing trend for maize.
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Research Methodology

The purpose is to determine how to use seeds by comparing indicators adequate for the main cereal crops. The analyses were based on knowing the growth rates of production given a reference year, which were calculated for wheat, barley and maize. The indicators expressed in absolute and relative values particularly referred to annual trends and variations.

In order to know the influence of each factor on crop production, presumptive estimates were made with the help of production functions. The influence factors were represented by the quantity of seeds (xijsem.2013010101.m01) and the area (xijsem.2013010101.m02), which were analyzed individually and simultaneously, watching the influence on total production (y), and the formula was presented synthetically by exponential functions. In order to find the intensity of correlation the multiple correlation coefficient was also determined (rijsem.2013010101.m03). The basis for calculation for 2000-2010 enabled a calculation of these correlation indicators for wheat, barley and maize. In doing so, the intention was to emphasize the features of each cereal crop in order to identify future trends.

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