Vol 49, No 3 (2017)
RESEARCH ON THE INFLUENCE OF SOME TECHOLOGICAL ELEMENTS AND THE CLIMATE IMPACT ON CORN PRODUCTION IN THE WESTERN PLAIN OF ROMANIA pag. 3-7
Lupu Ioan, Pîrşan Paulabstract
more abstractkey words
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DownloadINSTRUMENTS THAT AID THE STUDENT-CENTRED ASSESSMENT pag. 8-13
Viorica BOACĂ, Codruţa GAVRILĂThe new directions for the development of assessment in postmodern pedagogy are based on a dynamic kind of assessment that is centred on the student’s mental processes; these directions encourage self-regulation, self-reflection, while replacing the static concept based on control, examination and sanction. In the current educational context, when it is firmly required to switch the focus from assessing the products of the teaching/learning process to assessing the student’s cognitive processes during the activity of learning, alternative assessment methods constitute methodological and instrumental options which enrich the practice of evaluation. In this sense, among alternative methods of assessment, graphic organizers prove their efficiency in the evaluation process, as they offer the student the possibility to put the pieces of information in a logical order, being actually a mental model that helps in constructing new knowledge. The paper presents two graphic organizers: “the spider web mental map” and “the double bubble map”, which provide an overview of several teaching units of the subject called “Specialized Didactics”.
more abstractmodern assessment, alternative assessment methods, graphic organizers
Presentation: oral
DownloadMETHODOLOGICAL ASPECTS REGARDING INTERDISCIPLINARY TEACHING IN THE AGRICULTURAL HIGHER EDUCATION pag. 14-17
Viorica BOACĂ, Alina – Lidia MĂRGHITAN, Codruţa GAVRILĂThe present paper aims to give arguments for the necessity of integrated teaching, in other words of interdisciplinary teaching of contents, in order to help the students in agricultural higher education reach professional and transversal skills. In this sense, the paper describes a strategy that allows a subject to be approached from several points of view, for the purpose of deeper understanding.
more abstractinterdisciplinary teaching, transversal skills, teaching strategy.
Presentation: oral
DownloadASPECTS OF MOTIVATING HIGH SCHOOL STUDENTS TO INTEGRATE IN HIGHER EDUCATION pag. 18-21
Cristina TULBUREAbstract. The paper aims at bringing into attention the issue of motivation for the 12th grade high- school students to continue their studies in higher education. The general direction of investigation relates to the identification of intrinsic and extrinsic motivational aspects which drive students to continue their basic training at the university. In order to realize this goal, the study included three high schools from the rural area of the districts of Timiş and Gorj. The research method was the investigation based on a questionnaire, and the investigation tool was a questionnaire of opinion containing closed-ended and semi-opened questions. The questionnaire was first applied upon a number of 111 students from the 12th grade, but then there was a selection of a batch of 91 students who declared their intention to continue their education after graduating high school. The research focused on the extent to which the intrinsic motivation (e.g. the desire to become a good specialist; the desire to have a successful life; the pleasure to study; the appreciation of the role of education in any individual’s training), but also the extrinsic one (an attractive workplace; parents’ influence; the environment influence) stimulate the decision to attend the courses of a faculty. The results showed that the intrinsic motivation comes first for the majority of students, who are strongly motivated by the desire to succeed in life, by the interest in learning, but mostly by the desire to be best specialists in a domain. The study offers some openings to specialists in counseling and vocational orientation from the field of pre-university and university education
more abstractintrinsic motivation, higher education, extrinsic motivation
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DownloadCRITERIA TO CONSIDER WHEN CHOOSING A FACULTY FOR TECHNOLOGY HIGH SCHOOL GRADUATING STUDENTS pag. 22-25
Iasmina-Cecilia, SAVESCUAbstract. In a society characterized by an abundance of information, the decision to choose a particular faculty from a multitude of national and international, public or private options will be based on certain selection criteria. In this regard, the present study aims to investigate the criteria that are considered by the Technology High-school graduating students in choosing a certain faculty from many possible choices. To achieve this aim, we performed an ascertaining research on a batch of 91 High-school students enlisted to 3 programs belonging to the Technology line of studies: Natural resources, Services and Technics. The 3 Technology High- schools belong to the rural area, and the students included in this study were registered in the 12th grade, during the school year 2016-2017. The collection of data was achieved by applying a questionnaire of opinion to the 91 students included in the target group. The results were processed with the statistical program SPSS 17. The conclusions of the study reveal the fact that the most important selection criteria used by students in their final year in High- school in order to choose a faculty are the faculty field of study, the profession they train for during the faculty courses; faculty prestige; home-proximity; entrance conditions; positive aspects found out from others. As one may notice, students have in view mainly the future potential of a profession, which could provide a high quality life style, but they also take into consideration aspects relating to admission and accessibility to the university environment (distance from home, costs etc.). The results open the perspective for more ample studies regarding the best ways to integrate the High - school students coming from rural areas in higher education.
more abstractselection criteria, faculty selection, high school
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DownloadSOURCES OF INFORMATION REGARDING HIGHER EDUCATION ENTRANCE AVAILABLE TO TECHNOLOGY HIGH SCHOOL STUDENTS IN RURAL AREAS pag. 26-29
Iasmina-Cecilia, SAVESCUAbstract. In the age of information and communication technologies, one important aspect of the academic and professional orientation services consists in informing high school students regarding their options to continue studies at the university level. In this context, the study aims at identifying two main aspects: the types of information students consider useful in order to make a smart decision concerning the faculty to attend and the sources of information on the university educational offers. In order to achieve these objectives, an ascertaining cross-sectional research was performed upon a batch of 91 students enlisted at 3 Technology high-schools in rural areas. As an investigation tool, there was used an opinion questionnaire with closed, pre-codified answers, which provided relevant data concerning the students’ sources of information. The results showed that the most useful information for the 12th grade students living in rural areas includes: faculty educational offers; job opportunities after graduation and disciplines they are going to study. As for the main sources of information used by the students following the Technology line of studies, these consist in: environment, school and mass-media. The results offer some research themes for specialists in university marketing towards the improvement in quality of services promoting educational offers. Also, the study draws attention upon the need to improve the vocational counseling and career orientation services which are active at the level of pre-university education.
more abstracthigh school students, sources of information, higher education
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DownloadSTUDY REGARDING SELF-EFFICACY, SELF-ESTEEM AND LEARNING SUCCESS IN A GROUP OF STUDENTS pag. 30-33
Alina Mărghitan, BUASVM of Timişoara, Romania, alinamarg@yahoo.com, Codruța Gavrilă, BUASVM of Timişoara, Romania, gavrila_codruta@yahoo.com, Cristina TULBURE, BUASVM of Timişoara, Romania, tulburecristina@gmail.comThe analysis of factors that influence learning and lead to scholastic and professional success is the subject of many researches meant to improve the instructive-educational process. Within the group of students we made a research regarding the existent relationships between perceived self-efficacy, self-esteem and school results materialized through the obtained average for faculty admission. Self-efficacy refers to the beliefs students have with reference to their capacities of mobilizing their cognitive, motivational and behavioural resources to successfully accomplish their learning task. Expectations in relation to their own efficacy in learning influence their thoughts, emotions and behaviours within this task and the associated performance. If self-efficacy is correlated to self-perceived abilities to reach a certain goal, self-esteem is rather related to the global perception of its own value. The purpose of the study is to establish the level of self-efficacy for learning, of perceived self-esteem, and to compare them with the school grades obtained by the first year students. The present research included a group of 90 students from the faculties of Agriculture, Horticulture, Farm Management and Food Processing. Data analysis pointed out the important relation between their own abilities and proficiencies perception and the results of their actions. The research can be useful for all theorists and practitioners interested in elevating learning performances simultaneously with the development of their personalities.
more abstractself-efficacy, self-esteem, learning success, higher education
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DownloadINFLUENCE OF PERSONALITY TYPE ON LEARNING SUCCESS pag. 34-39
Alina Mărghitan, BUASVM of Timişoara, Romania, alinamarg@yahoo.com, Viorica BOACĂ, BUASVM of Timişoara, Romania, vioricaboaca@gmail.comAnalysing the factors that influence learning and lead to learning and professional success has been the topic of numerous researches aiming at improving the teaching and educational process. This paper presents a research regarding the relationships between personality factors according to the Big Five Model and school records, i.e. annual average after the first college year. Given that human personality mediates coping style or strategies, a low number of researchers have carried out the study of the importance of personality, of personality traits, and of the necessity of evaluating these traits. The goal of the study was to point out the configuration of personality factors in relation to school records at the end of the first year of college in the first semester of the academic year 2016-2017 on a sample of 90 undergraduates of the faculties of agriculture, horticulture, farm management and food processing. Descriptive analysis pointed out the different configuration of personality factors in relation to learning outcomes. This research is of interest for both academics and practitioners interested in increasing learning success and better knowing and developing the personality of the students.
more abstractlearning success, personality, learning intelligence, education
Presentation: oral
DownloadTHE INFLUENCE OF NITROGEN ON SOME MORPHOLOGICAL CHARACTERS AT THE WINTER RAPE pag. 40-44
Alina Laura AGAPIE1, P. PARSAN2Abstract: The winter rape is one of the crops with the highest consumption of nutrients. The chemical fertilizers applied both unilaterally and in different combinations, influences different the plant morphology. This paper proposes an analysis of the influence of the applied fertilizers, of: plant height, number of branches / plant, number of a silique / plant, average number of seeds / silique and the weight of the seeds / plant.
more abstractfertilization, Nitrogen (N), winter rape.
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DownloadTHE EFFECT OF NITROGEN AND PHOSPHORUS ON OIL CONTENT OF WINTER RAPE pag. 45-50
Alina Laura AGAPIE1, P. PARSAN2The quality and production of winter rape are strongly influenced by fertilizer dosages.. The varieties and hybrids cultivated in our country have an oil content between 37% - 60%. In this paper it is shown the effect of nitrogen and phosphorous fertilizers on the rapeseed oil content, hybrid Impression. The variant fertilized with 90 kg / ha nitrogen and 120 kg / ha phosphorus show the highest oil content - 56.91% to 24.78% more than the unfertilized control (32.13%).
more abstractfertilization, Nitrogen (N), Phosphorus (P), rapessed oil.
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DownloadINFLUENCE OF ANTHROPOGENIC ACTIVITIES ON MURES RIVER WATER QUALITY pag. 51-56
Laura ȘMULEAC, Lavinia ȘTEFANCA, Anișoara IENCIU, R. BERTICI, A. ȘMULEACGiven the current climate changes and the increasing anthropogenic stress, maintaining the quality of natural resources is increasingly stringent. Water, a vital yet limited in time and space natural resource, deserves more and more attention. To maintain water quality at accepted values, we need monitoring measures to reduce the impact of human activities on water resources. This paper presents a study of downstream Mures River water quality. Water was sampled in February, April, May, June, July, August and September 2016 in the Ilia Pod sector. Analyses show that water was slightly basic and that the water flow was fluctuating (it depends on the amount of precipitation in the river basin. As for the oxygen regime, it was good: it decreased only in July while biochemical and chemical consumption of oxygen increased in April, May and June, pointing to a water nutrient load. Nitrate, nitrite and total nitrogen content was higher, ranking the water in the 2nd quality class, unlike phosphorus content, whose values are very low. The impact of human activities on Mures River water quality was low, with values slightly above maximum admitted limits in nitrogen and oxygen regimes.
more abstractMures River water quality, oxygen regime, nutrient regime, impact of human activities
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DownloadUSING THE GNSS TECHNOLOGY TOTHICKEN GEODESIC NETWORK IN SECAȘ, TIMIȘ COUNTY, ROMANIA pag. 57-68
A. ŞMULEAC*, C. POPESCU**, Livia BĂRLIBA**, Valeria CIOLAC**, M. HERBEI**This paper presents the thickening of a geodesic GPS network through the static method in Secaș, Timiș County, Romania. To do so, we marked soil points with concrete landmarks in four localities (Secaș, Crivobara, Vizma and Checheș) and we used 37 Feno landmarks to thicken the network: we set 8 pairs of concrete landmarks, 2 pairs per locality. The concrete landmarks were made manually, observing the current norms. To materialise the works in the field, we prepared a GPS campaign taking into account several parameters. An important parameter was the stationing time for each landmark apart, taking into account the longest base. After measurements in the field, we acquired RINNEX data from the Cadastre and Real Estate Publicity Offices in Timiș, Făget and Arad, to post-process data and acquire WGS 1984 coordinates from post-processing. After the static post-processing, we thickened the network by setting and reading the Feno landmarks. The 37 Feno landmarks were read through radio waves. To check the correctness of measurements, we also read through the static method for other 5 high order geodesic signals (soil pyramids): Signal Dealul Viilor, Signal Dealul Mare, Signal La Matringa, Signal La Prapat and Signal Poiana lui Iancu. Land surveys were done with GPS equipment from Leica series 1200, and the equipment was downloaded with a Leica Geo Office Combined Programme; WGS 1984 coordinates were turned into Stereographic 1970 coordinates with a TransDatRo Programme, and data were processed with TopoLT and AutoCAD 2016 Programmes. Raw data post-processing was done with a Leica Geo Office Combined Programme.
more abstractOCPI, GPS, RTK, Feno, TransDatRO, WGS 1984, Stereografic 1970, TopoLT, AutoCad
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DownloadMORPHOLOGICAL AND CHEMICAL CHANGES IN BLOOD CELLS IN ACUTE LEUKAEMIA IN HUMANS NOTE 2. MORPHOLOGICAL CHANGES OF FIGURATIVE ELEMENTS BLOOD AND BONE MARROW IN PATIENTS WITH ACUTE LEUKAEMIA SUSPICION pag. 69-73
Olga – Alina RADA, Diana Brezovan, Corina Luminiţa MĂRAN, Mihaela OSTANCapturing and highlighting morphological changes that occur in the examination of a peripheral blood smear or bone marrow are important in the diagnosis of acute leukaemia, motivating the goal of this paper. The examination of blood smears from all patients included in the study revealed the presence of blast cells (2-97% of total leukocyte cell line). Of total studied smears, most presented type I and II blasts, which pointed to acute myeloid leukaemia (LAM) 2, 3, 4 and 5; lymphoblastic modest presence pointed to acute lymphoblastic leukaemia (LAL) (4%). About 36% of smears of blood blast cells analyzed showed a pronounced polymorphism, which could not be classified even after performing bone marrow aspirate, requiring further investigation to establish the diagnosis.
more abstractblood smear, bone marrow smear, acute leukaemia, blast cells
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DownloadLAND FOUND OF BANAT pag. 74-80
L. NIŢĂ1, D. ŢĂRĂU 1, D. DICU1, GH: ROGOBETE2, GH. DAVID1A durable management of the natural and anthropic resources , represent a modern form for ecosystem, in order that maintain and increase the biodiversity in agricultural produces in quantity and high quality long-term. To that end it is necessary to locate and define every plot with its ecological conditions, the soil suitability and capability for specific land use agricultural, sylvan, social-economic. The geographical position of the territory, situated between 44o27’ and 48o48’ northern latitude, and 20o15’-22o52’ eastern longitude, with a relief arranged in steps, sloping form east to west, determine a great diversity of ecological conditions and the structure of the land resources. The approached problems relates to a surface of 1.891.684 ha, with 62.56% agricultural land ( 1.183.343 ha) situated of south-west of Romania, which belong administrative to the countries: Timis, Caras-Severin, Arad ( south of river Mures ) Mehedinti ( area of the town Orsova ), for the most part of the region viewed historical Banat. The soil survey has been identified in agreement with Romanian Taxonomyc Soil System ( SRTS-2012 ), 23 soil types and soil association, involved inside of 11 soil class: Protisoil, Cernisoil, Umbrisoil, Combisoil, Luvisoil, Spodisoil, Vertisoil, Hidrisoil, Salsodisoil, Histisoil, Antrisoil. The paper presents, for this region, the capability of the land in crop, which is in total 832.925 ha: • Lands without limitations 217.617 ha (18.29%) • Land with small limitations 169.336 ha (14.31%) • Land with medium limitations 273.234 ha (23.09%) • Land with great limitations 276902 ha (23.40 %) • Land with several limitations 246.254 ha (20.81 %) The paper, also offers methods for soil evaluation and for the characterization of the natural and anthropic modification ressources, useful for scientific research and agricultural practice together with environment protection.
more abstractmanagement, resources, soil types, capability
Presentation: oral
DownloadMORPHOLOGICAL AND CHEMICAL CHANGES IN BLOOD CELLS IN ACUTE LEUKAEMIA IN HUMANS NOTE 1. ANALYSIS OF BLOOD COUNTS IN PATIENTS WITH SUSPECTED ACUTE LEUKAEMIA pag. 81-86
Olga – Alina RADA, Corina Luminiţa MĂRAN, Mihaela OSTANAcute leukaemias are a heterogeneous group of clonal neoplastic nature with undifferentiated stem cells, or partially differentiated, characterized by stopping differentiation and maturation of these cells, associated or not with their passage in the peripheral blood. The disease has a high incidence, affecting all age groups. Investigate automatic CBC gives extremely precise and clear indications of the presence of a number of cells outside the limits of variation or of the presence of a distribution or abnormal morphology. Comparing the data obtained from processing CBC from patients investigated with biological reference values from literature the authors have found that leukocytes reached a value six times higher (602 %) than the maximum reference value; these values were associated with thrombocytopenia and hypochromia. In all evaluated patients, CBC signalled the presence of blasts and undifferentiated cells that motivate further investigation.
more abstractCBC, acute leukaemia, leukocytes, thrombocytopenia, hypochromia
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DownloadIMPACT OF CLIMATE CHANGE ON WHEAT–PATHOGEN INTERACTIONS AND CONCERNING ABOUT FOOD SECURITY pag. 87-95
Mirela PARASCHIVU1,3, Otilia COTUNA2, L.OLARU1 , M. PARASCHIVU1Abstract. Agriculture is one of the most important sectors of many countries economy worldwide and it is highly dependent on the climate. Along with climate impact a range of regional and global political and economic factors intensify food insecurity and long term vulnerability in certain regions. Despite the findings suggesting that increases in carbon dioxide level (CO2) and temperatures can increase plant growth, the changes in global temperatures, frequency and intensity of droughts, extreme rain and snow falls, flooding and heat waves have already started to have significant impact on crop yields and concerning about future food security. The impact of climate change also need to be considered along with other factors that affect crop yields, such as specific biotic constrainers (pathogens) and its impact on the host-pathogen relationship. Moreover extreme temperatures and precipitation have been associated with changes in pathogens life cycles, increased incidence, pathogenicity, genetically recombination and aggressiveness traits, which involves the urge to rethink the integrated management strategies. Although, many previous studies have emphasized the sensitivity of plants to various biotic constrainers, the host-pathogen interactions are poorly understood in the context of climatic change. Therefore, it is a particular interest for those wheat pathogens that might affect yield dramatically with potentially serious implications for food security. The present review is focused on the impact of climate change on wheat diseases and host pathogen interactions taking into consideration case studies in order to understand better how the components of disease cycle are affected and to identify disease risk and prevent potential food security crisis. The response of pathosystems to climate change is of high interest currently in order to estimate disease risk on a large scale and to introduce new understandings in developing management strategies. However, further investigation need to be done in order to highlight how improving plant diseases management can enhance global food security in a changing climate.
more abstractKey words: climate change, extreme events, food security, host-pathogen interactions, plant disease, wheat
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DownloadTHE DYNAMICS OF BIOMETRIC PARAMETERS, THE CONTENT OF N.P.K. AND THE DIGESTIBILITY COEFFICIENT OF THE SPECIES OF TRIFOLIUM REPENS UNDER MINERAL FERTILIZATION INFLUENCE AND THE DIFFERENT PRATO-TECHNICAL MEASURES, ON A PERMANENT GRASSLAND FROM POIANA BRASOV pag. 96-100
Florin FAUR, Alina NEACŞU, G. – Gabriel ARSENEThe paper presents the results obtained from the study carried out on a long-term experimental device in Poiana Brasov, a device in which are provided various preparatory measures, as well as various fertilization recipes. The remarkable aspects make it possible to identify the most appropriate pratological measures in relation to the species Trifolium repens, a valuable species present in the floral composition of the permanent quality meadows.
more abstractPermanent grassland, biometric parameters, Trifolium repens, digestibility coefficient.
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DownloadTHE DYNAMICS OF BIOMETRIC PARAMETERS, THE CONTENT OF N.P.K. AND THE DIGESTIBILITY COEFFICIENT OF THE SPECIES OF POA PRATENSIS UNDER MINERAL FERTILIZATION INFLUENCE AND THE DIFFERENT PRATO-TECHNICAL MEASURES, ON A PERMANENT GRASSLAND FROM POIANA BRASOV pag. 101-105
Florin FAUR, Alina NEACŞU, G. – Gabriel ARSENEThe paper presents the results obtained from the study carried out on a long-term experimental device in Poiana Brasov, a device in which are provided various preparatory measures, as well as various fertilization recipes. The remarkable aspects make it possible to identify the most appropriate pratological measures in relation to the species Poa pratensis, a valuable species present in the floral composition of the permanent quality meadows.
more abstractPermanent grassland, biometric parameters, Poa pratensis, digestibility coefficient.
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DownloadCOMPARATIVE STUDY OF AN ASSORTMENT OF WINTER WHEAT GROWN IN CARACAL PLAIN pag. 106-112
Gh. MATEI , Ana Maria DODOCIOIU , E. PETRESCU , D. RĂDOIAbstract. Annually, in Romania are cultivated around two millions ha of winter wheat with an average of yields of 3500 kg/ha (FAOSTAT, 2017). In comparison with the European developed states, as France or Germany, where the average yields are over 6500 kg/ha, in Romania those productions are well below the climatic potential. The causes of these situation are various: genetically (varieties capacity for production) climatic (tolerance to drought and high temperature), technological (levels of fertilization, sowing date, weeds and pest control and so on). The technology applied to winter wheat, regardless of the crop system, includes the whole a complex of activities that contribute both to the achievement of the largest productions and to the achievement of some seeds with superior qualitative indices in terms of bakery (C. PĂUNESCU, 2012). Technological management of wheat involves choice of land, choice of variety, establish the rotation, and all the technological sequences starting with sow until harvest.Romanian farmers has a rich offer of wheat varieties, but for each agricultural zone those should be tested in order to select and recommend the most valuable genotypes who have the ability to better capitalize the climatic conditions. In this paper we present the results obtained to a few wheat genotypes from Syngenta Company tested in the climatic conditions of Caracal Plain, during three years with different favourability for wheat. The outcomes of this study show that the new genotypes offered by Syngenta Company prove to be a practical solution for farmers in order to obtain high yields, over 7000 kg/ha in average on studied interval, but most of this, characterized by constancy of productions in each year.
more abstractwheat varieties, assortment, yields
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DownloadTHE PRODUCTIVITY OF SOME RAPESEED GENOTYPES IN THE CLIMATIC CONDITIONS OF ARDS CARACAL pag. 113-121
Gh. MATEI , Ana Maria DODOCIOIU , F. IMBREA , C. Ș. DOBREThe tendency for growing rapeseed areas from the USA and European Union has also shifted to Romania in the last 10 years. Several companies from Western Europe have launched an offensive on the Romanian market seeking large areas of land on which to grow rapeseed, which they later turn into oil, which is turn, as a result of the additive, into biodiesel. Biodiesel is a fuel used for automobiles instead of diesel, being cheaper and less polluting. The explosion of demand for biodiesel on the world market has influenced the areas where rape is grown in Romania. If in 2005 the cultivated area was about 50.000 ha, in 2006 was doubled up to 100.000 ha and in 2009 the increase was substantial - about 600.000 ha and now the cultivated area is around of 500 000 ha with small variations of this depending of the price market (404.715 ha in 2014, FAOSTAT 2017). European Union has over 30% from international market of rapeseed with France as fist exporter and Germany as first producer of rapeseed. In Romania, the average rapeseed yields are only of 2-2.5 tons/ha, quite low, and the price of one tone in the Constanta port varies between 220 to 225 USD/tone. The number of rapeseed varieties and hybrids increased as the cultivated area increased. Serious investments are being made in the improvement and testing activity, so that specific recommendations are made for certain areas and implicitly for different areas from countries. For this, there needs to be a well-documented information on cultivated rapeseed varieties and hybrids, knowing that the central area of Oltenia is known as an area with a dry climate. Considering that there are very different climatic conditions to Western Europe, where most varieties come from, it is necessary to make some very professional tests, aiming at highlighting the material that exhibits high adaptability (Iancu Paula et all, 2009). Taking in account those above mentioned in this paper we present the results obtained to an assortment of rapeseed from Euralis Company tested in climatic conditions of Agricultural Research and Development Station of Caracal, during of three years: 2015, 2016 and 2017.
more abstractcolza hybrids, assortment, yields
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DownloadPIONEER VEGETATION ON WATER SHORES (BIDENTI-POLYGONETUM HYDROPIPERI LOHMEYER IN R. TÜXEN 1950 AND ECHINOCHLOO-POLYGONETUM LAPATHIFOLII SOÓ ET CSŰRÖS 1974) IN THE ROMANIAN BANAT pag. 122-135
Alina NEACȘU, G.-G. ARSENEThe class Bidentetea tripartiti R. Tüxen et al. ex von Rochow 1951 encompasses nitrophilic vegetation found in humid areas (swamps, water shores, humid microdepressions) and slightly humid arable land. These associations present a pioneer character, frequently occur in stripe or patches and are mainly made up of annual hygrophytes. In the Romanian Banat, two associations are frequent: Bidenti-Polygonetum hydropiperi Lohmeyer in R. Tüxen 1950 and Echinochloo-Polygonetum lapathifolii Soó et Csűrös 1974. These weed formations appear alongside rivers and lakes banks or in periodically flooded depressions, on soils rich in nutrients, described, among others, by GRIGORE, 1971 (the Timiș-Bega interfluve), COSTE, 1974 (Locva Mountains), OPREA et al., 1974, OPREA, 1976 (Satchinez, Sînnicolaul Mare Plain), LOVASZ, 1995 (Buziaș Plain), DRĂGULESCU, 2013 (Timiș river basin). Our previous research (NEACȘU, 2008) refers to the association Bidenti-Polygonetum hydropiperi Lohmeyer in R. Tüxen 1950 which we studied in two locations: Pișchia (at 123 m altitude) and Surduc (at 196 - 198 m altitudes). The total species number in this composition is of 57. The species average / relevé is of 10.1, the minimum number species / relevé of 5, and the maximum species number / relevé, of 20. Of the species characteristic to the association, cited in the specialty literature and occuring in the flora composition of our phytocenoses, we mention the following: Bidens tripartita L., Polygonum hydropiper L., Echinochloa crus-galli (L.) Beauv., Polygonum mite Schrank, Potentilla reptans L., Alisma plantago-aquatica L., Lycopus europaeus L., Lysimachia vulgaris L., Xanthium strumarium L. Under a synecological aspect, the association is meso-hygrophilic. The ecologic indices analysis shows that the phytocenoses we analysed encompass a higher percentage of mesophilic species, 28.07 %. Their presence is due to the drier aspect of the stations (land in the process of draining) and the community transitory character. The mesophilic species are followed by meso-hygrophilic ones, with 21.52 %, the other categories not being so well represented. The Echinochloo-Polygonetum lapathifolii Soó et Csűrös 1974 phytocenoses, which we studied, can be found at altitudes ranging from 116 m (Pișchia) to 196 m (Surduc). The total number of species identified there is of 24. The average species / relevé is of 9.66, the minimum species number / relevé of 7, and the maximum species number / relevé, of 10. The dominant characteristic species, Echinochloa crus-galli (L.) Beauv., accompanied by Polygonum lapathifolium L. occurs alongside other species characteristic for the association, such as: Rorippa austriaca (L.) Besser., Bidens tripartita L., Pulicaria vulgaris Gaertner, Mentha pulegium L. The last two species indicate a slightly soil salinization tendency. Under the flora composition, life forms and phytogeographic categories aspect, our phytocenoses mostly resemble to those described in the Timiș-Bega interfluve (Timiș county), by GRIGORE (1971), varying to a certain degree from those analysed by COSTE (1974), at Zăvoi and Pojejena (Caraș county), which encompass, aside from characteristic species, a significant number of transgressive species from Isoëto-Nanojuncetea Br.-Bl. et Tx. 1943 and Chenopodietea Oberd. 1957 em. Lohm. et Tx. 1961. This fact is due to the difference in altitude and biotope described by this author (fallows, gardens and humid depressions). The studied communities constitute the pioneer vegetation installed on free lands, bordering humid areas and which transitions is to other associations of shore weed formations, mesophilic or xero-mesophilic. They vary largely under the aspect of flora composition, physiognomy and ecology, are unstable and difficult to outline, because of the anthropic pressure they are exposed to and we consider them important because of their specific character.
more abstractpioneer vegetation, water shores, Romanian Banat
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DownloadPARTICULAR RESULTS ON VEGETAL PRODUCTION TECHNOLOGIES IN AGRICULTURAL HOLDINGS IN TIMIS COUNTY pag. 136-140
E. IEVA, I. MACRA, Georgeta POPAgriculture evolves in a context characterized by the trend of development and the successful application of the latest knowledge and technologies in order to solve an essential problem of the development of society, which refers to the food supply in accordance with the rhythm of growth of the population and at acceptable prices. The increasing demand for food determines the necessity for us in the country to use modern agricultural production technologies, able to properly exploit the natural potential, leading to the production of food in order to meet the ever increasing needs of both quantity and quality of of the population, as well as the creation of export availability. A modern and performing agriculture can not be done without specialists without a strong R & D sector, with no specific technologies for each crop group and for each area, permanently adapted to climate change and in line with environmental protection requirements. Mark Rosegrant, researcher at the International Research Institute for Agricultural Policies, in the study "Food safety in a world with a shortage of natural resources - the role of agricultural technologies," states that, I quote: "The reality is that one technology or agricultural practice can not provide enough food for the whole world. Instead, we must promote the use of the largest possible number of these technologies to increase the yield of agriculture. "If we also take into account the growth of the global population - which could reach over 9 billion people by the year 2050, while we we find a big question mark about guaranteeing global food safety. Agricultural cooperatives are the forms of association with the highest economic potential in our country's agriculture. Thus, the development of the economic component within the activities of agricultural cooperatives is a strategic objective, which requires integration in the sphere of national agricultural policies. This has to be harmonized with the implementation of programs for the consolidation of Agricultural Marketing Associations, which must establish and maintain advantageous intra- and extra-cooperative relations (agricultural producers and cooperatives, market partners).
more abstractAgricultural cooperatives, associations, marketing
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DownloadFARM STRUCTURE, TYPE OF AGRICULTURE IN TIMIS COUNTY pag. 141-144
E. IEVA, I.MACRA, Georgeta POP: Agricultural systems are functional units specific to the natural and socio-economic framework, created for the production of vegetal and animal production, directed and controlled by the farmer, based on solid economic, ecological and technological fundamentals applied under different climatic and soil conditions, high quality, and economically efficient production. Following the same authors, the main agricultural systems are: traditional (family) agriculture, intensive farming, sustainable agriculture, integrated agriculture, organic agriculture. Choosing a type of technology helps farmers to minimize the risk of damage by constant production and, on the other hand, reducing production costs. The general objective of conventional technology and technology is to ensure a high and constant crop yield per year on a land surface with a given labor and financial consumption. The productivity of a technology is given by the quantity of products obtained and by the labor consumption at the surface unit. Agricultural technology also includes a social, cultural and psychological component, which is based on understanding, knowledge, receptivity from those who apply its methods . For example, landlessness has created real structural imbalances in agriculture, but also a social crisis. The employed population in agriculture has become older and less receptive to association in economically viable farms and the adoption of new technologies. Tradition, habits, and overall attitudes to change are important factors that affect the use of performing technologies. The role of technology is to improve the relationship of consumption to ultimately produce as high and highest production at a unit cost as low as possible. Technology is the study of methods and processes used in various sectors of agriculture, such as: field crop technology, horticultural technology, livestock technology. Technology is materialized on agricultural land by the technological flow, which represents the totality of methods and works in their natural order and sequence, starting from the preparation of the land for sowing to the harvesting of products and the removal of vegetal remains.
more abstractagricultural systems, technology, structure
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DownloadNOTES ON THE VASCULAR FLORA OF THE LAKE SURDUC AREA pag. 145-154
Alina NEACȘU1, G.-G. ARSENE1, Alina ARSENE2We present a conspectus of cormophytes species in the area surrounding the artificial lake of Surduc (Timiș County, SW Romania) whose dam was buil-up in the ’1975. Under the Romanian name Lacul Surduc, the lake water surface and a small belt of its border constitutes since 1995 a mixt nature reserve (WDPA ID 183478, category IV IUCN) of a 3.62 km2 total area. After 1990, the lake area became a local touristical attraction, and a chaotic implantation of summer residencies began. The list of species is compiled mainly from our field studies carried-on since 2000. This list contains: aquatic and paludicolous species (Caltha palustris, Carex riparia, Eleocharis palustris, Iris pseudacorus, Juncus spp., Lythrum salicaria, Mentha aquatica, Najas minor, Polygonum amphibium, Potamogeton crispus, Rorippa amphibia, Schoenoplectus lacustris, Typha angustifolia, Veronica anagalis-aquatica etc.), species from the surrounding deciduous forest (Fagus sylvatica, Quercus petraea, Carpinus betulus, Prunus avium, Crataegus monogyna, Rosa canina, Alium ursinum, Anemone nemorosa, A. ranunculoides, Erytronium dens-canis, Ficaria verna, Galium odoratum, Mycelis muralis etc.), meadows species (Agrostis capillaris, A. stolonifera, Alopecurus pratensis, Festuca rupicola, F. valesiaca, Leontodon autumnalis, Lotus corniculatus, Trifolium pretense, Plantago media etc.), weeds (Anagallis arvensis, Chenopodium album, Digitaria sanguinalis, Lathyrus tuberosus, Setaria pumila, Veronica persica etc.), invasives (Ambrosia artemisiifolia, Erigeron annuus, Rudbeckia laciniata, Phytolaca americana) and many ornamental trees and herbaceous planted in small gardens of residencies. Remarkable is the presence of Lindernia procumbens on S-E lake border, species listed in the Annex IV of the Council Directive 92/43/EEC. We noted that the anthropic pressure on aquatic and paludicolous vegetation increase since the beginning of our observations period, although some conservation actions were implemented.
more abstractSurduc Lake, nature reserve, vascular plants diversity, Lindernia procumbens
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DownloadPARTIAL RESULTS REGARDING THE INFLUENCE OF CLIMATIC CONDITIONS ON THE QUALITY OF LAVENDER AND SAGE PRODUCTION pag. 155-160
Ș. SMETAN1, Simona NITA1, Gh. DAVID1, Ilinca Merima IMBREA1, Georgeta POP1The influence of climatic conditions on the herbal production (kg/ha) and the essential oil content (%) obtained with twelve species of aromatic plants: lavender Lavanda angustifolia L.) and sage (Salvia officinalis L.). The climatic condition characterization was based on recordings of meteorological conditions found at the Arganda Meteorological Station, situated 6 km away from the experimental field in the locality Morata de Tajuña (40 13 46 N, 3 26 11 V), Madrid, Spain. The active principle content in the essential oil is higher in warm, dry areas (Racz, and Evdochia Coiciu 1970). Between certain limits, the high temperature, especially during the blooming period, leads to the synthetisation of all active principle categories. The warm weather favours the content and quality of volatile oils. When analysing the climatic conditions of the year 2015, one observes that, during the vegetation period form planting the biological material in the lot on October 10th until harvesting in July, a temperature degree sum of 530°C was calculated, which is considered optimal for the two aromatic crops. Also, the temperatures during the last 45 days before blooming, in April for sage and June and July for the lavender crops, were optimal for the accumulation of volatile oils in the plant. Aromatic plants usually require a warm climate with low precipitations. The critical stage for the water demand is during the period of vegetative growth, buttoning and blooming. If, during the previous months, the hydric input is sufficient, during the months when the aromatic plants bloom, they do not require much precipitation. The rains falling during the blooming and harvesting period will endanger the quality of the volatile oil. One may observe that the agricultural year (Spain) displays a normal climatology and does not differ significantly from the average. We may thus state, that the experimental field crops did not encounter any special problems. We must mention the fact that during the months of March, April, May and June, a water input of ca. 200l/m2 was provided through irrigation.
more abstractitalic climatic conditions, essential oil, production herbs.
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