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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

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

Print preparation: Photonika - Ivo Nikov
Printing: Avangard Ltd.

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Volume 25 Number 6 December 2019

AGRICULTURAL MANAGEMENT

Economic and social impacts of price volatility in the markets of agricultural products

Maurizio Lanfranchi, Carlo Giannetto, Francesco Rotondo, Mariyana Ivanova, Vihra Dimitrova


Selected technical and organizational problems in various milk production systems

Michał Switlyk, Ewa Koloszycz, Agnieszka Sompolska-Rzechula


Determination of factors affecting on dried beans production decisions in Turkey

Ali Berk, Cahit Gungor


SUSTAINABLE AGRICULTURE

New solution – innovative design with inventive step of a super tall green building made of bamboo: “Superskyscraper in Singapore”

Yanko Aleksandrov


Evaluation of social sustainability of Bulgarian agriculture

Minka Anastasova-Chopeva


In vitro regeneration and Agrobacterium mediated transformation of Turkish commercial barley (Hordeum vulgare L.)

Nahid Hazrati, Saime Unver, Mohammad Hasanzadeh, Farzad Nofouzi, Khalid Mahmood Khawar, Ali Ergul


Spatiotemporal dynamics of cereals grains and grain legumes yield in Ukraine

Anastasiia Zymaroieva, Oleksandr Zhukov, Liudmyla Romanchuck, Anatolii Pinkin


AGRICULTURAL ECONOMICS

Determinants of agricultural land rent and its development in Czechia

Radek Zdenek, Jana Lososova, Tomas Mrkvicka


ECOLOGICAL FARMING

Effect of degradable mulch on tomato growth and yield under field conditions

Mysoon Alamro, Atif Mahadeen, Osama Mohawesh


PLANT SCIENCE

Physiological quality of Tithonia diversifolia (Hemsl.) A. Gray seeds as a function of harvest period and storage conditions

Eduardo Mattar


Pilot scale cultivation and production of Vanilla planifolia in the United Arab Emirates

Khalil Ur Rahman, Mohamed Khalifa Bin Thaleth, George Mathew Kutty, Ramachandran Subramanian


Study of weather conditions influence on the grapes quality and some technological practices on the chemical composition, aromatic profile and organoleptic characteristics of white wines

Tatyana Yoncheva, Vanyo Haygarov, Dimitar Dimitrov


Evaluation of the efficiency of oil radish agrofitocenosis construction by the factor of reproductive effort

Yaroslav H. Tsytsiura


PLANT PATHOLOGY AND PROTECTION

Spreading of diseases caused by phytoplasma on local and foreign grape varieties grown in Bulgaria from 2005 to 2018

Zhelyu Avramov, Marco Mihaylov


The influence of some herbicides on seed production in standard wheatgrass (Agropyron desertorum (Fisch.) Schultes)

Plamen Marinov-Serafimov, Irena Golubinova


Allelopathic effect of dodder (Cuscuta epithymum L.) on different genotypes bird’s-foot trefoil (Lotus corniculatus L.)

Irena Golubinova, Plamen Marinov-Serafimov


AGROCHEMISTRY, SOIL SCIENCE AND ECOLOGY

Relations between crop rotation with pea and soil structure

Elpiniki Skoufogianni, Kyriakos Giannoulis, Dimitrios Bartzialis, Nicholaos Danalatos


In vitro propagation of the Balkan endemic species Stachys leucoglossa Griseb

Desislava I. Mantovska, Veneta M. Kapchina, Zhenya P. Yordanova


Acrisols on the territory of training and experimental forest range “Petrohan”

Ludmila Malinova, Kameliya Petrova


Assessment of efficacy of sodium silicate on morphological parameters of Lycopersicon esculentum Mill. under water deficit conditions

Chanchal Malhotra, Riti Thapar Kapoor


DTPA-extractable micronutrient content of soils in Southern Bulgaria

Penka Zaprjanova, Gergana Hristozova


A study on the effects of water quality, cultivars, organic and chemical fertilizers on potato (Solanum tuberosum L.) growth and yield to calculate the economic feasibility

Duraid K. A. AL-Taey, Imad J. C. Al-Naely, Bassim H. Kshash


ANIMAL SCIENCE

The effect of different housing system on quality parameters of eggs in relationship to the age in brown egg-laying hens

Adam Kraus, Lukáš Zita, Ondřej Krunt


Study on the exterior of cow Limousin cattle breed, bred in Bulgaria

Svetoslav Karamfilov, Vasil Nikolov, Radka Malinova


Comparative study of rations for milking cows with soybean meal or cake added to the diet in equivalent amounts for metabolizable protein

Evgeniy Kharitonov


Phenotypic and genetic parameters of the complex assessment of BV in two-year-old tested horses from the East Bulgarian breed

Iliana Sabeva


The influence of queen bee age, the number of brood combs, and the useof a queen excluder on comb brood size in Apis mellifera bees during the blossom season

Mochammad Junus


Protected fat in the diet of lactating ewes affects milk composition, lamb body weight and their biochemical parameters

Elena Zdorovieva, Gennady Boryaev, Elena Kistanova, Alexey Nosov, Yuri Fedorov, Nikolay Semigodov


ANIMAL GENETICS

The effect of the crossing of Yellow Hungarian chicken breed with different commercial lines on meat production and meat quality

Arpad Drobnyak, Laszlo Bodi, Monika Heincinger, Karoly Kustos, Istvan Tibor Szalay, Anita Almasi, Agnes Zimboran, Rubina Tunde Szabo, Maria Weber


FOOD SCIENCE AND TECHNOLOGIES

Storage studies of subtropical fruit lucuma in powdered form

A. Durakova, A. Bogoeva, V. Yanakieva, Tzv. Gogova, I. Dimov, R. Krasteva, K. Dosheva


Comparative study on the polyphenols content and antioxidant activity of local wine grape varieties from the island of Paros, Greece

Nikolaos Gougoulias, Dimitrios Kalfountzos, Panagiotis Vyrlas, Dimitrios Kritikos, Maria-Nektaria Ntalla