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Bulgarian Journal of Agricultural Science (BJAS)® is a peer-reviewed, open access, online and print journal, issued bimonthly. It has been published in English since 1995. It publishes original research papers, review articles and brief communications from all areas of agricultural science including agricultural economics, agroecology, agrochemisty and soil science, crop science, plant protection, animal science, veterinary medicine, fisheries and aquaculture, agricultural engineering, food technologies and other related areas.

ISSN 1310-0351 - print
ISSN 2534-983X - online

Publisher: Agricultural Academy of Bulgaria
Editor-in-Chief: Prof. Dr. Martin Banov
Executive editor: Snezhana Besarabova
E-mail: bjas_sb@abv.bg
Web: www.agrojournal.org

Bulgarian Journal of Agricultural Science
125, Tzarigradsko shosse Blvd., Block 1
1113 Sofia, Bulgaria

Print preparation: Ivo Nikov
Printing: Avangard Ltd.

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Volume 26 Number 2 April 2020


Quality certifications’ impact on wine industry assets performance

Mariantonietta Fiore, Marcella Giacomarra, Maria Crescimanno and Antonino Galati


CAP support policy impact on Bulgarian agriculture

Bozhidar Ivanov

Competition in the Saudi Arabian rice market

Yosef Alamri, Michael Reed and Sayed Saghaian

An analytical evaluation of factors that determine the red meat production in Turkey

Ergun Simsek


Comparative characteristics of soil organic matter in Technosols built with different geological materials and agricultural land use

Plamen Ivanov and Martin Banov

The response of durum wheat varieties from semi-arid environment to drought stress on germination and at the seedling stage

Adel H. Abdel-Ghani, Saddam A. Al-Dalain, Nael H. Thaher, Saed J. Owais, Shahed I. Sarayrh, Raeda Mayta and Mahmud A. Duwayri

Rice husk derived biochar as smart material loading nano nutrients and microorganisms

Ahmed Z. A. Hassan, Abdel Wahab M. Mahmoud, Gamal M. Turky and Gehan Safwat

Economic stimulation of the development of agriculturein Ukraine due to integrated use of natural resources and waste

Oleksandr Shubalyi, Petro Kosinskyi and Vasily Golyan

New solution – fluorescent fish aquariums located in building elements and furnitures of the skyscraper Kun Min, China

Yanko Alexandrov


Economic effect of foil mulching in organic raspberry production

Iliana Krishkova and Elena Tsolova

Response of Aloe vera to inorganic and organic fertilization in relation to leaf biomass yield and post harvest fertility of soil

Tanzin Chowdhury, M. A. H. Chowdhury, Md. Arifur Rahman, Kamrun Nahar, Md. Tazul Islam Chowdhury and Md. Sirajul Islam Khan

Induce resistance against bacterial speck disease of tomato Pseudomonas syringae pv. tomato by the chemical inducer ß-aminobutyric acid

Hamed Mustafa Khlaif, Omar Naser Rajeh, Bilal Ibrahim Wreikat and Ibtihal Mohammad Abu-Obeid


The effect of soil tillage on symbiotic activity of soybean crops

Volodymyr Hanhur, Mykola Marenych, Liudmyla Yeremko, Svitlana Yurchenko, Olena Hordieieva and Irina Korotkova

Morphological characterization and genetic diversity of Fenugreek (Trigonella foenum-graecum L.) accessions in Oman

Issa Talib Al-Maamari, Muhammad Mumtaz Khan, Abdullah M. Al-Sadi, Qumer Iqbal and Nadiya Al-Saady

Evaluation of wheat varieties by the stability of grain yield in multienvironmental trails

Todor Gubatov and Vanya Delibaltova

Behaviour of soybean seedlings in situations involving cotyledon removal

Allan de Marcos Lapaz, Luiz Felipe de Melo Santos, Gabriel Leonardi Antonio, João Henrique Silva Vera, Lucas Aparecido Manzani Lisboa and Paulo Alexandre Monteiro de Figueiredo


Diversity assessment of wild cherry germplasm by using RAPD markers

Marina Antić, Mirela Kajkut Zeljković and Gordana Đurić

High temperature effect on the male gametophyte and the photosynthetic activity of two Capsicum annuum L. cultivars

Yanina Arnaoudova, Elena Topalova and Velichka Todorova


Morphological and molecular identification of potato cyst nematodes Globodera rostochiensis and Globodera pallida in Bulgaria

Kostadin Trayanov, Hаrry Samaliev, Milena Kostova, Bojin Bojinov and Ani Besheva

Evaluation of pepper (Capsicum annuum L.) varieties to several methods of inoculation with Verticillium dahliae Kleb. in different conditions

Katya Vasileva and Velichka Todorova

Spirotetramat (Movento®): new systemic insecticide for control of green peach aphid, Myzus persicae (Sulzer) (Hemiptera: Aphidae) on peach

Veselin Arnaudov and Rositsa Petkova

Influence of glyphosate on leaf gas exchange and photosynthetic pigments of broomrape-infested tobacco plants

Mariyan Yanev and Shteliyana Kalinova

Resistance of hybrid wine grape breeding forms to downy mildew (Plasmopara viticola Berkeley et Curtis)

Iliana Ivanova, Ralitsa Mincheva, Galina Dyakova, Gergana Ivanova-Kovacheva

Selectivity of the some herbicides applied to Bulgarian variety of perennial ryegrass (Lolium perenne L.) IFK Harmoniya during stand establishment and seed production

Plamen Marinov Serafimov, Irena Golubinova


Health risk from heavy metals via consumption of food crops grown on the soils in the vicinity of manganese mine

Senad Murtic, Emir Sahinovic, Hamdija Civic and Josip Jurkovic

Effect of mineral fertilization on the quality parameters of head cabbage (Brassica oleracea L. var. capitata L.)

Lyuba Nenova and Ivanka Mitova


Effect of different sources of specific variance on the weight development and wool production of the Karnobat sheep breed

Genoveva Staykova and Margarit Iliev

Lateral asymmetry of the equine mandible

Pere-Miquel Pares-Casanova

Application of vitamin-mineral supplement in intensive use of boars and its effect on reproductive qualities

Stepan Batanov, Aleksandr Perevozchikov and Lyudmila Novikova


Genotype frequencies in calpastatin (CAST) and callipyge (CLPG) genes in Northeast Bulgarian Merino sheep breed using PCR-RFLP method

Milena Bozhilova-Sakova, Ivona Dimitrova, Todor I. Tzonev and Nikolay Petrov


Content of biological active and anticancerogenic substances in the fat fraction of ewe’s milk and dairy products and their consumption in humans

Tsonka Odjakova, Silviya Ivanova and Ljubomir Angelov

Study of the effect of ultrasonic field in purifying sunflower oil

Petr Igorevich Osadchuk, Dmitry Panasovich Domuschi, Yuriy Ivanovich Enakiev, Serhii Nikolaevich Peretiaka and Andrii Pavlovich Lipin


The effect of parameters on the performance efficacy of a single screw feed extruder using a design experiments and response surface methodology

Almira Kabdusheva, Ayap Kurmanov, Maxat Amantayev, Yralbay Khasenov and Vladimir Sapa