G. Raykov Department of General Agriculture and Herbology, Faculty of Agronomy, Agricultural University, 4000 Plovdiv, Bulgaria (Manuscript received 27 February 2025; accepted for publication 14 April 2025) Abstract. In effort to establish an approach to evaluate yield components to t

N. Markov, D. Yorgov, P. Veleva, A. Petrova, S. Atanasova 1Department of Regional development, Faculty of Economics, Trakia University, 6000 Stara Zagora, Bulgaria 2Department of Agricultural engineering, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria (Manuscri

P. Chamurliyski1*, N. Tsenov2, I. Stoeva3, S. Doneva3, E. Penchev3 1Department of Crop Science and Plant Protection, College Dobrich, Konstantin Preslavski University of Shumen, 9300 Dobrich, Bulgaria 2Agronom I Holding, 9300 Dobrich, Bulgaria 3Dobrudzha Agricultural Institute, 9521 G

N. Tsenov1*, T. Gubatov1, E. Tsenova2 Abstract. The date of ear emergence (DEE) and the date (time) of physiological maturity (TPM), as quantitative indication affect yield and in this respect any information about their genetic nature is important for breeding in climatic anomalies o

H. Stoyanov Abstract. Wide hybridization as a tool of classical breeding is a method which is successfully applied in the development of breeding programs in cultural plants. Its application is a particularly effective means to overcome the effects of biotic and abiotic stress in cult

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

I. Stoeva Abstract. This study investigated the changes in the technological properties of common winter wheat lines of the latest generation of DAI breeding during the period 2004 – 2008. The dynamics of meteorological factors during the years of investigation typical for the region

During the years 2006-2009 field experiment with winter wheat was held in the region of Stara Zagora. The object of study is the economic impact of leaf treatment with liquid fertilizer micro on productivity of winter wheat. Field experiment includes the following study options: contr

The changed duration of the time to heading and maturity is an important element of the wheat’s adaptability to specific production conditions. The question whether a variety early by its heading date remains early by its maturation date is a significant one, but the data on thi

The investigation included 16 varieties from first and second quality group according to the Bulgarian state standard. The aim of the investigation was to find out the level of influence of different environmental factors on wheat quality indices; to follow the response of the varieti