STUDY UPON THE MAIN MORPHOLOGICAL AND PRODUCTIVE CHARACTERS ON SEVEN RAPE VARIETIES CULTIVATED IN DIFFERENT FERTILIZATION CONDITIONS PUBLISHEDDaniel Grosz
The researches were made in Banat’s Plain, on a chernozem soil type gleic. The purpose of these researches is to bring a contribution to the improvement of the rape varieties structure, with high production potential and high oil content. There were researched seven rape varieties, cultivated on four nitrogen fertilization levels, on a constant fund of P80 K80. The varieties studied were: Valesca, Orkane, Ader, Potomac, LG, Belini, Milena. The nitrogen fertilization levels that were between N0-N75-N150-N225, aimed the doses optimization under the productive and economic aspect. The studied characters were: the variation of the plants height, the variation of the ramification degree, the variation of the siliqua number/plant, the variation of the seeds number/siliqua. The results had accentuated the possibility of obtaining crops of over 3000kg/ha, in the condition on which the medium production in the west part of Romania oscillates between 1200-1600kg/ha. From the varieties were remarked Valesca, Milena, and Potomac, that can be recommended to be cultivated in the reference area. The nitrogen fertilizers had favorable influenced in the researched domain, the plants height, the ramification degree, the siliqua number per plant and the seeds number per siliqua, the maximum values being registered in domain N150-N225.
characters; varieties; fertilization; rape autumn