Z. Uhr1*, G. Rachovska, G. Delchev Abstract. The study was conducted during the period 2009–2011 at three locations of South Bulgaria with different agro-climatic conditions – Instute of Plant Genetic Resources Sadovo, the Experimental Stations in Sredets and Ivaylo. Were tested 21 pr

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