G. Delchev* Department of Plant Production, Faculty of Agriculture, Trakia University, Stara Zagora, Bulgaria (Manuscript received 13 June; accepted for publication 01 September 2022) Abstract. The research was conducted during 2019 – 2022 on pellic vertisol soil type. Under inv

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

Peevska1*, M. Drumeva2, G. Georgiev1 (Manuscript received  2017; accepted for publication 5 February 2018)  Abstract. The aim of the present article was to introduce the new Bulgarian sunflower hybrid Sevar, which since 2015 has been included in the European Catalog of Field and Veget

G. Delchev1*, T. Barakova2 1Department of Plant Production, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria 2Field Crops Institute, 6200 Chirpan, Bulgaria (Manuscript received 16 May 2016; accepted for publication 11 August 2016) Abstract. The research was condu

G. Georgiev* Dobrudzha Agricultural Institute, 9520 General Toshevo, Bulgaria (Manuscript received 1 July 2016; accepted for publication 26 August 2016) Abstract. A male sterile two-linear sunflower hybrid was developed at Dobrudzha Agricultural Institute – General Toshevo using the m

G. Delchev* Department of Plant Production, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria (Manuscript received 28 January 2016; accepted for publication 30 May 2016) Abstract. During 2013 – 2015 on pellic vertisol soil type was conducted a field experiment. Un

G. Delchev* Department of Plant Production, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria (Manuscript received 28 January 2016; accepted for publication 2 March 2016) Abstract. . The research was conducted during 2013 – 2015 on pellic vertisol soil type. Under

G. Georgiev*, V. Encheva, N. Nenova, Y. Encheva, D. Valkova, P. Peevska, G. Georgiev Dobrudzha Agricultural Institute, 9520 General Toshevo, Bulgaria Abstract. The new Bulgarian sunflower hybrid Vokil was developed at Dobrudzha Agricultural Institute (DAI), General Toshevo, Bulgaria b

G. Milev Abstract. During 2010 – 2012 a field trial was carried out with the new cultivar Beslet in the trial field of Dobrudzha Agricultural Institute on slightly leached vertisol. The aim of the investigation was to find out the optimal sowing and nitrogen norms for this cultivar un

G. Delchev Abstract. During the period 2010 – 2012, on the experimental field of the Field Crops Institute – Chirpan was carried out a field experiment with conventional Maximus hybrid PR44D06 (Brassica napus). A total of 15 variants were investigated. Canola hybrid from Maximus