Maize growing importance is given to the size and weight of cultivated cereal production in the economy and the various possibilities of use, which this plant can significantly contribute to ensuring these requirements up from food and energy. Across our country is used only one third of the production potential of maize hybrids growing. The objective of this work is to determine the density uniformity affecting plant for three acquiring with agronomic importance: production, corn weight, grain yield.Experience was located on a typical mold soil in the territory Plain Arad- Semlac. In terms of physical characteristics, soil that was placed experience, providing favorable conditions for growing the plant Zea mays L. Biological material is up 6 hybrids Pioneer Company: Pr37M34 (Ribera), Pr36R10, Pr37N01, Florencia, Pr35F38, Pr35T06 hybrids of groups FAO 450-500. Sowing densities were 40.000 plants / ha, 55.000 plants / ha, 70.000 plants / ha.Benchmarking was performed on the level of significance of differences (DL) after calculating the variances for bifactorial experience analysis with subdivided parcels. Optimum plant density maize stands under the influence of biological features of hybrids and the influence of ecological factors, including fertility and soil moisture are most important.Matching density with optimal features of hybrids and especially facorii vegetation, entail that the best investment is made in the cultivation of maize.Results of this study are part of a doctoral program, with the theme: "Research on the influence of sowing density on production and its quality from 6 corn hybrids, climatic conditions of Plain Arad" scholarship program funded by the European Social din Pilot Program Fund to support research doctoral scholars, under contract POSDRU/6/1.5/2 USAMVB Timisoara, under the distinguished University Professor Dr. Valeriu Tabară.

corn hybrids; plant density; protein; fat content; starch; HM; mass of 1,000 grains

Presentation: oral