M. Drumeva* Department of Plant Production, Faculty of Manufacturing Engineering and Technologies, Technical University of Varna, 1 Studentska str., 9010 Varna, Bulgaria (Manuscript received 5 September 2020; accepted for publication 16 January 2021) Abstract. The main purpose of sunf

E. Penchev, K. Kostov, I. Stoeva, V. Dochev Abstract. The effect of the environment on a group of new Bulgarian varieties was investigated in three different locations for a period of 5 years. AMMI models were applied. The dispersion analysis carried out proved the different genetic p