DOI: n/a
Abstract
The experiment was carried out in the experimental field of the “Plant-growing” department at the Agricultural University – Plovdiv during the period 2008–2011 applying the block method with four replications and size of the yield plot 20 m2. Three hybrids were studied – Trabant, Visby and Rohan. The Trabant hybrid proved to be the most early ripening and of the highest oil quality. During the three-year period as well as averagely for the period of study the highest seed yield was obtainet from hibrid Visby (4823 kg/ha).