30
MAR
2021

Productivity and quality of experimental sunflower hybrids in climatically different years

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
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29
SEP
2016

Characterization of the Bulgarian sunflower hybrid Valin

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
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17
DEC
2015

Hybridization between cultivated sunflower and wild annual species Helianthus petiolaris Nutt.

D. Valkova*, G. Georgiev, N. Nenova, V. Encheva, J. Encheva Dobrudzha Agricultural Institute, 9520 General Toshevo, Bulgaria Abstract. InterspecifichybridizationwascarriedoutbetweensterileanaloguesofcultivatedsunflowerlineswithnormalcytoplasmandwildannualHelianthus petiolaris accessio
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29
SEP
2015

Effect of foliar fertilization on sunflower (Helianhtus annuus L.)

G. Milev* Dobrudzha Agricultural Institute, 9520 General Toshevo, Bulgaria Abstract. A field experiment was carried out with sunflower (Helianhtus annuss L.) hybrid San Luka during 2011 – 2013 in the trial field of Dobrudzha Agricultural Institute under conditions of slightly leached
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14
MAY
2014

Testing of new Bulgarian sunflower hybrids under the conditions of North-East Bulgaria

I. Productivity and traits related to productivity G. Georgiev, P. Peevska, E. Penchev Abstract. The investigation was carried out at Dobrudzha Agricultural Institute, General Toshevo during 2011 – 2012. It was aimed at determining the production potential and the values of some of th
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12
MAY
2014

Investigation on some seed characteristics among sunflower lines and hybrids

M. Drumeva, N. Nenova, E. Penchev Abstract. Sunflower, being one of the main oil seed crops in the world, is of special economic importance in East Europe. In sunflower breeding the heterosis effect is primarily used. The high yield and the quality properties of seeds depend on the in
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