The study was carried out in Banat’s lowland, on the plain between the rivers Mureș and Bega. According to the map of climate types existing on the territory of Romania, the area where the researches were carried out belongs to the moderate continental climate type, the sector of climate province with Mediterranean influences. According to Kӧppen, this area is part of the e.f.b.x. climate province. The soil of the experimental filed is a typical carbonate light chernozem, moderate eroded, with a light alkaline reaction (pH 8,2), having an argillaceous texture. The studies variety is Grandur. The crop results for the four seeding densities and for the crop rotation wheat – repeated culture show an average crop of 5499 kg/ha, for the crop rotation wheat after corn an average crop of 6114 kg/ha, and for the crop rotation soy - wheat an average crop of 6300 kg/ha. As regarding the seeding densities, the largest crop - 6277 kg/ha (the average for the three foregoing plants) - was obtained when seeding 650 germinable grains/m2. An increase of density up to 750 germinable seeds /m2 is not justifiable. The plant loss results determined in the area the researches were carried out were of between 10/14% from plant sprouting and until the end of winter, the variety Grandur being a variety adapted to this region. The mass of 1000 grains varied between 38.7 and 41.6 g, and the hectolitre mass between 77.7 and 80.9 kg/hl. The gross protein value was high, exceeding 15% for the crop rotation soy – wheat when seeding 450, 550 and 650 germinable seeds/m2, and the wet gluten content was of between 28.5 – 29.4% for the same seeding density variants.

Durum wheat, crop rotation and crop density.

Presentation: oral