ISSN 2284-7995, ISSN Online 2285-3952
 

Published in Scientific Papers. Series "Management, Economic Engineering in Agriculture and rural development", Vol. 21 ISSUE 4
Written by Maria BĂLA, Florin SALA

The present study evaluated the vegetative propagation of Saintpaulia (African violets). Five genotypes of Saintpaulia were used: Saintpaulia ionantha Shades of Autumn (G1), Saintpaulia ionantha Zoja (G2), Saintpaulia ionantha Delft (G3), Saintpaulia ionantha Milky Way Trail (G4) and Saintpaulia ionantha Tongwenis (G5). Three growth substrates consisting of sand (San, Gs1), sand and peat (San/Pea, 1:1 mixture, Gs2) and perlite and peat (Per/Pea, 1:1, Gs3 mixture) were used. From the combination of genotypes with growth substrates, 15 experimental variants were obtained. The experiment was organized in a protected space, with 15 leaf cuttings on each variant, in three repetitions. The number of rooted shoots (Sn) and the length of the roots (Rl) were evaluated. Compared to the experience average, there were positive differences in statistical safety conditions for variants V2, V7, V8 and V14 (for LSD0.1%). Negative differences in statistical safety conditions were recorded in variants V3, V4, V6 and V15 (for LSD0.1%), and in variants V10 and V12 (for LSD1%). According to the PCA, PC1 explained 85.684% of the variance, and PC2 explained 14.316% of the variance. Cluster analysis led to the grouping of variants based on Euclidean distances, in relation to the values generated for Sn and Rl, in statistical safety conditions (Coph.corr = 0.784). The result was two distinct clusters, with several subclusters each. The analysis of SDI values found the highest level of similarity between variants G1-Gs1 and G4-Gs1 (SDI = 0.3607), followed by variants G2-Gs2 and G4-Gs1 (SDI = 0.4000), respectively by variants GG4-Gs2 with G5-Gs2 (SDI = 0.5900).

[Read full article] [Citation]

Published in Scientific Papers. Series "Management, Economic Engineering in Agriculture and rural development", Vol. 21 ISSUE 4
Written by Ufedo Monday SHAIBU

This study analysed the food security situation in Nigeria between 1960 and 2020. The longitudinal survey design was used. Secondary data on food security indicators were obtained from World Development Indicators (WDI) of the World Bank, Food and Agriculture Organization (FAO), Central Bank of Nigeria (CBN), and National Bureau of Statistics (NBS). The data were analysed using descriptive statistics. Findings revealed a general upward trend in agricultural output, per capita food production, and per capita income. The country’s agricultural output was relatively low during the independence f 1960 and the first decade. Further, there was instability in growth, this was followed by some slight increase prior to 2015 and 2016. The study also revealed low rate of per capita food production prior to late 1980. Before the oil boom, Nigeria’s per capita income was relatively low; while the depth of food deficit obviously decreased from 75 kilocalories per person per day in 1997 to 42 kilocalories per person per day in 2016.This study concluded that Nigeria and Nigerians are having food insecurity problems – a very low value of food production per capita and a high depth of food deficit that has been on the increase since the past decade.

[Read full article] [Citation]

Published in Scientific Papers. Series "Management, Economic Engineering in Agriculture and rural development", Vol. 21 ISSUE 4
Written by Natalia TCACI, Alexandru TCACI, Ina DOMBROVSCHI

In this paper is being studied the structure of the production cost by calculation items for agricultural products from the enterprises of the Central region of the Republic of Moldova. The influence of the unit cost on the change in the rate of return was quantified. The results of the factorial analysis show that the increase of the unit cost for all agricultural products caused the decrease of the rate of returne: for wheat by 3.89 p.p., for corn by 3.36 p.p., for sunflower by 12.03 p.p. This is partly explained by the fact that in the structure of production costs the items "Fertilizers and "Pesticides" and "Seeds" predominate, which are usually imported at exaggerated prices.

[Read full article] [Citation]

Published in Scientific Papers. Series "Management, Economic Engineering in Agriculture and rural development", Vol. 21 ISSUE 4
Written by Daniela Marilena DOROBANTU, Alina MARCUTA, Cristiana TINDECHE, Maria STOIAN, Ioana NICULAE, Liviu MARCUTA

Tourism, one of the branches that recorded among the largest losses during the Covid-19 pandemic, both globally and nationally, is the subject of the case study. These losses were due both to the travel restrictions imposed by each state, but also to the reluctance of tourists to travel, especially in 2020. Therefore, the number of tourists has decreased considerably, both in terms of resident tourists and tourists. non-residents. That is why in this paper we set out to analyze the ways in which the development of the Covid-19 pandemic influenced the tourist traffic, taking into account the non-resident tourists who arrived in Romania. We found that the incoming activity of tourists was well below the outgoing activity, which negatively influenced both the tourist entities and the complementary sectors, which in turn are related to the entire national economy. The research methodology consisted in collecting the existing data on the website of the National Institute of Statistics, as well as in other specialized databases, their processing, analysis and formulation of conclusions. Different research methods were used: analysis, deduction, graphical method, comparative method, as well as a series of indicators with a fixed base through which we highlighted the change in time of tourist traffic, as well as their growth rate. Based on the analyzed data, conclusions were formulated that allowed us to characterize the existing situation on the Romanian market in the period 2018-2020.

[Read full article] [Citation]

Published in Scientific Papers. Series "Management, Economic Engineering in Agriculture and rural development", Vol. 21 ISSUE 4
Written by Teodora STOEVA, Violeta DIRIMANOVA, Petar BORISOV

Digitization is the key topic of our time. The impact of new technologies has a huge potential especially in Bulgarian agriculture. In the conditions of the COVID-19 and financial crisis, Bulgarian agriculture faces a difficult choice – farmers have to make serious investments in digitalization in order to be able to meet the European requirements related to food quality and environmental protection. The purpose of this article is to present and analyze the impact of digitalization on competitiveness of agricultural sector in Bulgaria, and to outline the direction related to the proper use of technologies for the rapid development of Bulgarian agriculture. The study is based on the documentation method which made of laws and regulations in the sphere of agriculture, as well as specific legislation related to digitalization. In the conditions of the COVID-pandemic which has accelerated the process of digitization and support for farmers who introduce digital technologies, innovative technologies for production and organization in agriculture, in order to increase the competitiveness of the agricultural sector in Bulgaria.

[Read full article] [Citation]

Published in Scientific Papers. Series "Management, Economic Engineering in Agriculture and rural development", Vol. 21 ISSUE 4
Written by Daniela-Mirela PLESOIANU, Agatha POPESCU

The main purpose in carrying out this paper is to convey the way in which tourism is influenced by natural and anthropogenic factors in relation to climatic elements. Behind this paper is a careful documentation on each element presented, concrete information and close to the truth in order to create a precise picture of the relationship between climate and tourism in Sinaia. Climatic data provided by National Institute of Meteorology and Hydrology and also the statistical data provided by National Institute of Statistics were used. Following the processing of statistical data, it was found that the favorable climatic factors, characteristics for each season and the specific tourist infrastructure are elements that ensure tourist flows throughout the year. The qualitative aspects in this research were studied based on current scientific literature, official documents and observation method, and the quantitative research was carried out using statistical analysis of the processed data, graphic and cartographic method, the method of observation and interpretation. The results were presented in tables, graphs and then interpreted and analyzed. Data used in this study are part of the textbook on the desk. Being one of the most spectacular mountain areas in Romania, recognized internationally by the satisfaction of tourists who arrive in these lands, this paper aims to highlight the favorable climate conditions in relation to tourism in Sinaia considered the "pearl" of the mountain resorts in the Prahova Valley. This paper presents the capitalization of tourism potential, which highlights the number of tourists arriving in the two resorts, in the period 2009-2019. Also, the private accommodation infrastructure and the number of main accommodation units, hotels and pensions are presented in detail, the typology of hotels according to the degree of comfort and the presentation of tourism in the hot and cold period of the year. Finally, we find the conclusions that highlight the main ideas that emerged from the research.

[Read full article] [Citation]

Published in Scientific Papers. Series "Management, Economic Engineering in Agriculture and rural development", Vol. 21 ISSUE 4
Written by Elena BONCIU, Recep LIMAN, İbrahim Hakki CIGERCI

The regeneration capacity of the cells of an explant depends on several factors: the nature and origin of the explants, their type, structure and degree of juvenility, cell maturity and physiological state, endogenous phytohormone content, composition of culture medium and culture conditions, etc. Among them, the culture medium is an essential factor for the success of in vitro culture. In its composition, in addition to macro and microelements, vitamins, sucrose, etc., can be added some natural nutritional extracts, such as deproteinated coconut milk or various vegetable and fruit juices, to improve the complexity of the culture medium. This paper presents the results obtained in the laboratory from the in vitro culture of okra (Hibiscus esculentus), on modified Murashige-Skoog culture medium (MS) by adding natural orange juice in three different concentrations: 5, 10 and 20%. It was observed that at the 10% concentration of orange juice were registered the highest values, both in terms of germination, explant growth and mitotic activity. The lowest values from this point of view were obtained at a concentration of 20%. These results suggest the nutritional potential of orange juice added to the MS culture medium to increase the growth rate and in vitro survival of okra via cells competence improvement.

[Read full article] [Citation]

Published in Scientific Papers. Series "Management, Economic Engineering in Agriculture and rural development", Vol. 21 ISSUE 4
Written by Iuliana ANTONIE

In order to increase beekeeping, a more detailed research of the honey flora is needed. The purpose that our study undertakes is the identification of plants with honeybee potential in the Cisnădioara area (Sibiu county), as well as the enrichment of knowledge on the honeybee floristic structure of the whole county. To achieve this goal, we used: bibliography, direct sampling of plants, photographs and discussions with local beekeepers. The study was finalized with drawing up a compiling list of plants with a melliferous potential in this zone. 38 botanical families and 117 species with a melliferous potential were identified and arranged into three groups related to their melliferous weight: a high, a medium and a low economical beekeeping weight. The absence of the plants with a very high economical beekeeping weight is highlighted. This fact determines the beekeepers in the studied area, to practice pastoral beekeeping, at large distances, in order to have an important honey production.

[Read full article] [Citation]

Published in Scientific Papers. Series "Management, Economic Engineering in Agriculture and rural development", Vol. 21 ISSUE 4
Written by Sebastian GUT

This article analyzes the activity carried out by the Managing Authority for Operational Program for Fisheries and Maritime Affairs (POPAM) within the Directorate General of Fisheries (AM-POPAM) in order to ensure the information and implementation process on accessing European funds granted by POPAM for the period 2014- 2020 following the concluded contracts, measures implemented , the amounts that were allocated and the gain obtained by accessing them by the applicants as a result of the existing agreements between the European Community and Romania. The actions of DGP-AM-POPAM through its decision makers at central, regional and county level ensure information and communication, in accordance with the Regulation of Organization and Functioning of the Managing Authority for POPAM and the National Strategy of the Fisheries Sector for knowledge transfer for growth competitiveness and diversification and the need to modernize the fisheries sector, by processing and marketing fish products but also by developing markets by ensuring a wide and diversified range of products and services along with the use of renewable energy while protecting the environment. The methodology used consisted in studying the bibliographic sources, collecting, processing, analyzing and interpreting the data provided by the databases of DGP and MADR, as well as formulating conclusions on the status of projects submitted, amounts allocated, achievement of targets and measures that can be taken further to support fishing and aquaculture activities.

[Read full article] [Citation]

Published in Scientific Papers. Series "Management, Economic Engineering in Agriculture and rural development", Vol. 21 ISSUE 4
Written by Victor ŢÎŢEI, Mihai GADIBADI, Natalia CÎRLIG, Alexei ABABII, Ana GUŢU

The technological itinerary and the system of machines and equipment used for the cultivation of Jerusalem artichoke, Helianthus tuberosus L., and possibilities to use on the cv. Solar as fodder and energy biomass are presented in this article. We found to planting and harvest Jerusalem artichoke tubers, the same agricultural machinery and equipment will be used as for potatoes crop, and to harvest aerial biomass – agricultural machinery and equipment for harvesting corn and other silage crops. The Jerusalem artichoke energy biomass can be processed into solid fuel with the available briquetting/pelletizing machines, the net calorific value of solid biofuel was 17.7 MJ/kg and the ash content – below 2.2 %. It has been determined that the prepared silage contained 240- 290 g/kg DM, 9.7-13.5 % CP, 8.90-12.96 % CA, 55.9-62.3 % NDF, 31.0-45.8 % ADF, 4.8-6.3 % ADL, 11.25-12.43 MJ/kg DE, 9.23-10.21 MJ/kg ME and 5.96-7.02 MJ/kg NEl. The biochemical methane potential of Jerusalem artichoke silage substrate 4,000-6,000 m3/ha. The lignocellulosic substrate of Jerusalem artichoke dry stems contained 276 g/kg cellulose, 176 g/kg hemicellulose, 98.04 g/kg hexoses sugars and 45.4 g/kg pentoses sugars, the theoretical bioethanol yield from stems was 598 l/kg. Helianthus tuberosus cv. Solar may serve as an alternative crop for producing silage and as a sustainable source of feedstock for renewable energy production.

[Read full article] [Citation]

Page 7 of 8

The publisher is not responsible for the opinions published in the Volume. They represent the authors’ point of view.

© 2019 To be cited: Scientific Papers. Series “Management, Economic Engineering in Agriculture and Rural Development“.

Powered by INTELIDEV

Management Journal