G. Georgiev, G. Georgiev, P. Chamurliyski Abstract. During the last decade oilseed rape has become a main field crop in Bulgaria. In 2001, about 240 thousand ha were sown with this crop, mainly with foreign varieties and hybrids. The increasing demand and the large market for this oil

P. Chamurliyski, N. Tsenov Abstract. One of the main tasks of the contemporary breeding programs is developing of varieties characterized with high production potential and stability of grain yield under different growing environments. The aim of this investigation was to evaluate the