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  • Will there be a horticultural triangle (cluster)? Thoughts about the reconstruction of the Hungarian horticulture between two European regions
    21-27
    Views:
    99

    The authors of this study seek the answer to the question how to develop, in the first decade or decades of the 21st century, the university-level
    horticultural scientific training, the horticultural innovation and the scientific co-operation between companies and universities in Debrecen and
    in the North Great Plain Region and – in a wider sense – in Hungary to a standard being competitive even in European terms. With the synthesis
    of the prospects of past, present and future, they drew the following conclusions. The reconstruction of agriculture, horticulture and food industry
    is a part of reforming Hungary's countryside. Horticulture, producing high added value, will be able to decisively contribute to the plan whereas
    the value presently produced in an agriculturally cultivated area of 1,000 euros/hectare can reach 2,000 to 3,000 euros in the next two decades.
    A necessary and indispensable precondition to achieving this is the strengthening of the innovation output of the Hungarian horticultural sector.
    Despite the numerous technical criticisms formulated in connection with the serious problems of Hungarian agricultural and horticultural
    scientific innovation, no progress has been made in this field for the past one and a half decade. The scientific research of this topic hardly
    continued or did not continue at all, the up-to-date surveys and in-depth analyses were missing. The objective, basic principles and tasks of the
    Act CXXXIV of 2004 (TTI) enacted concerning research-development and technological innovation are clear and progressive. The co-operation
    between the National Research Technology Office and the Hungarian Academy of Sciences, the setting up of the Innovation Fund are heartening
    opportunities. These – along with the new Higher Education Bill to be passed – may as well be suitable for restarting the Hungarian agricultural
    and horticultural scientific innovation. In our opinion, this requires a new, well-considered national agricultural programme, which can be
    conceived in the framework of the "Ferenc Entz National Horticultural Plan" proposed by us for horticulture. In the most eastern Hungarian
    university knowledge centre, at the University of Debrecen, the continuing of the horticultural scientific innovation strategy started in the last
    decade may be the focal point and generator of the development of the so-called "Hungarian Horticultural Triangle”, or "Hungarian
    Horticultural Cluster". This region comprises the Northern and Southern Great Plain Regions and the area between the Danube and Tisza
    Rivers. Here, about 70 to 75% of the total Hungarian horticultural commodity stock is produced. The objective of the HORT-INNOTECH
    DEBRECEN programme planned in 2004 by the University of Debrecen, Centre of Agricultural Science is to establish the horticultural scientific
    research-development and technological innovation structure and knowledge base of the Hungarian Horticultural Triangle / Hungarian
    Horticultural Cluster. In harmony with this, the objectives are to bring about competitive, new horticultural products, to improve the conditions
    of utilising them, to enhance the competitiveness of enterprises based on technological innovation, to make use of the research-development and
    innovation opportunities available in the regions in an efficient manner, to as full extent as possible, to encourage the creation of places of
    employment producing high added value in the field of horticulture, to improve the technical skills of those employed in horticultural researchdevelopment and to promote their enhanced recognition by the society.

  • A study of product strategy priorities at the small enterprises of the North-Alföld Region
    55-64
    Views:
    70

    Through a non-representative sample of the small enterprises of the North-Alföld Region, this paper studies the product strategic priorities enabling us to make a detailed typology of small
    enterprises. According to the relevant technical literature, the types of small enterprises have typical strategic priorities. Obviously, each group can be characterised with certain strategic
    priorities, which are sharply distinct from each other. These priority features are shown in the form of characteristic features in the enterprise’s marketing activities, market behaviour (product policy, innovation attitude, technology, price policy). This paper studies the enterprises of the sample through the role of production technology, material quality, low price and branding endeavours affecting product positioning.

  • Evolution of European Union’s policy towards the Mediterranean region
    5-10
    Views:
    106

    This paper examines some specific problem in Euro Mediterranean relation. Author decided to concentrate on two main issues: the characteristics of the institutions of the Union for the Mediterranean, indicating similarities and differences in the Euro-Mediterranean programs and the presentation of specific new initiatives. The author will also summarize the main possible positions in the ongoing debates about the need to reform the European Union addressed to the countries of North Africa and the Middle East.

  • Marketing analysis of the Villány wine region
    119-123
    Views:
    201

    Hungarian wine is not in such a bad position as it is considered. We have outstanding specialists and the country’s natural conditions are also proper. In Hungary, there are wine production and wine consumption has a major traditions. The role of marketing in our wine industry is growing more and more, and this trend is expected to continue in the future. The development of tourism in wine-growing regions and advertising would considerably promote the popularity of Hungarian wine.

  • The variation of breast milk composition during the lactation stage for mothers from the Csík region
    93-98
    Views:
    83

    The aim of our research was the examination of breast-milk composition from mothers living in the Csík region and to follow their milk composition variations during lactation. In this article we present the results obtained from three mothers, paying particular attention to essential components. The breast milk samples were collected from healthy mothers with similar habits and age. The milk samples were collected with a hand pump at the
    same time after the feeding. The sampling period was from day 5 to the 14th weeks of lactation. The nutrition of mothers was  recorded on a questionnaire, completed by the mothers themselves. Comparing our experimental results with data in the literature it was concluded that the milk protein content was very similar to the milk of mothers from other European countries, and is decreased during lactation.
    The total saturated fatty acid content was lower, but the palmitic acid content was slightly higher. Regarding the essential fatty acid composition the linoleic- and the arachidonic acid contents were appropriate from a nutritional point of view. The linolenic acid was present in lower amounts, but the docosahexanoic acid was almost undetectable.
    The iron and manganese contents were in good agreemen with published results, but the zinc content of the breast milk was lower and its copper content was higher. These differences in milk composition can be explained by the different nutritional habits of our subjects. 

  • Nutritional disorders of arable crop growth in eastern Croatia
    273-290
    Views:
    136

    Nutritional imbalances accompanied with growth retardation of crops at early growth stage were found since the last 40 years on certain arable lands in eastern Croatia. In this regard, phosphorus (P) deficiencies in maize and wheat were found mainly on acid soils of the western part of the region, potassium (K) deficiencies in maize, soybean on the hydromorphic neutral to alkaline calcaric drained gleysols of Sava valley lowland, while zinc (Zn) deficiencies were observed mainly in seed-maize and soybean on neutral calcaric eutric cambisols of the eastern part of the region. Cold and moist spring is factor promoting P deficiency symptoms. As oasis of normal crops existed on same arable land, comparison of plant and soil composition was possible from typical sites. P nutrition disorders were in connection with the lower P and the higher aluminum (Al) and iron (Fe) concentrations in the top of plants and the lower soil pH values. K-deficiency as result of strong K fixation and imbalances with high levels of magnesium (Mg) were the main responsible factors of low maize and soybean yields on some drained gleysols. Chlorosis incidences typical for Zn deficiency in maize and soybean were in close connection with the higher soil pH, the lower quantities of mobile Zn, here and there the higher mobile P in soil, the lower concentrations of Zn and the higher levels of Al and Fe in plants. Overcoming the above mentioned disorders and normalization of yields were achieved using ameliorative fertilization either by K or P fertilizers and in case of Zn by foliar spraying of crops with 0.75% ZnSO4 solution. Also, alleviations are possible by selection of more tolerant genotypes of field crops to specific types of nutritional disorders. From this aspect, some practical solutions were recommended for maize with reference to K nutritional problems.

  • The situation of the Hungarian apricot farming and its developmental tendencies
    163-170
    Views:
    121

    The EC has declared „gönci magyar kajszi” as a product of specific origin with geographicald enomination. The „pálinka”isregistered Hungarian productin the EU. The micro-region of apricot production, named Gönc, has the privilege to utilize the great potential for rural development by its apricot production. To determine the development potential connected to apricot, needs through investigations on apricot production.This paper investigate apricot production at global, European and national levels. At national level each key aspects of apricot production have been analized. The final conclusions referring to Gönc micro-regionare: Northern Hungary region has got the biggest apricot area(within that Gönc has got outstanding role). The share of apricot cultivars of gönci origin ”has got overwhelming role in the Hungarian Cultivar assortment, the living tradition of production in this micro-region makes it possible, that gönci apricot will contribute to the overall socio-economic development in the region to a remarkable extend.

  • Periphery formation and economic-social conflict
    87-90
    Views:
    109

    The timeliness, significance and importance of the study is sensitively shown by the fact that a large part of the Tisza region is slowly being moved to the periphery in the slowly modernising and changing economic and settlement spatial structure of the Great Plain. This situation is also deepened by the fact that the social and economic backlog increases in the majority of the region, as one third of the 33 most disadvantaged small regions in Hungary can be found here. This study basically contributes to the establishment of the development of the Tisza river’s spatial environment and the development of new solutions.

  • The Effect of Drought on the Yield of Winter Barley Lines in the Great Cumania Region
    127-129
    Views:
    66

    Winter barley is the third most important fodder plant in Hungary after winter wheat and maize.
    Its accommodation to the changing climatic conditions – mainly to drought in Great Cumania, the driest region of our country is of great importance from the point of view of plant breeding and growing.
    The vegetation period of 2002/2003 can be considered to have been very droughty with 247.5 mm precipitation.
    According to our results six- rowed barley lines have better drought tolerance than two-rowed lines. The average yields of the six-rowed barley lines were 12-25 per cent higher than the yields of the two rowed lines.
    Due to the joint effect of delayed sowing and drought, significant yield depression was detected both in the case of the early and the medium maturity group, and assessable data could be gained only from 35 per cent of the total territory.

  • Information and Communication Technologies in tourism
    49-53
    Views:
    145

    Technological progress and tourism have gone hand in hand for years. Information communication technology (ICT) and tourism are two of the most dynamic motivators of the emerging global economy. Tourism can be considered as one of the most profitable sectors of the Hungarian economy, and in rural areas it is often the only successful economic activity.
    Development of ICTs and the expansion of the Internet have changed dramatically in the past few decades. This process is noticeable in
    Hungary, as well. Platform of tourism increasingly get to the Internet nowadays, which is vitally important because tourism is an information-intense industry. Therefore, it is critical to understand changes in technologies in order to maintain the crucial role of this sector in the Hungarian economy.
    The aim of my study is to support the significance of tourism in Hungary and especially in the North Plain Region with the help of statistical data. Then, I try to show how ICTs appear in this sector and emphasize the role of these tools with some concrete examples.

  • The applied mechanical equipments for wastewater treatment in the észak-Alföld region
    171-178
    Views:
    150

    In this study we presented the results of a survey research, which was performed during 2015 at 34 sewage treatment works, operating in Észak-alföld region (Hungary). The survey focused on applied mechanical equipment and works of art of the sewage treatment establishments.

    The results of the survey showed that the majority of the examined sites (approx 65%) are working with capacity utilization of 50–100%,merely the 12% of plants was overload. It was found analyzing of specific energy consumption of the sites that the largest value (1.1 kWh per m3) was at the plants with smaller capacity (0–1000 m3 per day). It was clear during the questionnaire processing of the survey that almost all of the works applied activated sludge for sewage treatment The sludge treatment of the sewage plants is conducted by two methods; aerobic- and mixed (anaerobic and aerobic) sludge stabilization. We suggest for the plants with small capacity to use deep aerators, since anachronistic method used the at 3% of the settlements.

  • The development of the scientific bases of horticulture and the history of horticultural innovation in the Northern Great Plain region and in Debrecen
    17-20
    Views:
    75

    It can be told about the second half of the XXth century that, apart from preferring the large-scale growing of field plants and the largescale
    livestock farming, corresponding to the central political will of the communist era, the significance and innovation output of
    horticultural education in Debrecen was rather of follow-up trait, of secondary importance. The Tobacco Research Institute continued the
    research work, and then even this activity was stopped. According to a survey finished in 1997, the mentioned institute had no invention,
    granted patent, protection for registered model or any application for patent in progress at the Hungarian Patent Office. Until this time, invention activity at the University of Agricultural Sciences was of medium standard. In the National Patent Office, seven patent applications related to agricultural production and nine patent applications for other fields submitted under the inventors’ names were recorded. In the same period, the Cereal Research Institute (Szeged) led the absolute innovation list of Hungarian agricultural R+D institutions and university education institutes by submitting 164 own patent applications. Both in domestic and international terms, the horticultural innovation conducted at the University of Agricultural Sciences, despite the individual research results and achievements deserving recognition, without appropriate background – remained unnoticed. Let us put it this way: for the past decades, the light of the Debrecen Flower Carnival has not been thrown on the horticultural teachers and researchers of Debrecen.

  • A study of social and economic influences of universities in the Derecske-Létavértes subregion
    153-157
    Views:
    103

    Businesses operating in the region – adopting to local conditions – mostly pursue agricultural activities. Their R+D activity is rather moderate and largely focuses on development, moreover, the range of innovative businesses is relatively significant, which businesses – before long – will become potential partners for institutions of higher education (especially for Debrecen University).

    Social impacts of universities are notable on the person’s status in the labour market. Our study of the Derecske-Létavértes region shows that those with a university degree have an advantageous position in the labour market, compared to the sample of youth aged between 16 and 35. Knowledge obtained at college and other skills greatly help the young to find employment.

  • Data on the Orthoptera fauna of characteristic agricultural landscape in the Carpathian Lowland
    25-34
    Views:
    145

    Orthoptera fauna and assemblages of natural and semi-natural grasslands of the Hungarian Lowland are well-known, however, little is known about assemblages living in agricultural and anthropogenic habitats such as arable lands, roadsides, hedges, and riverbanks. Due to climate change, intensification of agriculture, and change of habitat use, these habitat types become increasingly important.

    To collect data on these mainly unknown habitat types, a three-year study was carried out on the Orthoptera fauna and assemblages of the firth region of the Tisza and Sajó rivers. This area was mainly unknown, and our research contributes to increasing knowledge and provides a base for further investigations.

    In the 40 sampling sites of the studied region, an occurrence of 30 Orthoptera species was recorded based on 2241 sampled individuals. In this study, we provide 540 new distribution data records of orthopterans that means an almost eightfold increase of the known data. Orthoptera assemblages of different agricultural habitat types showed significant differences considering both species richness and composition. Data suggested that non-cultivated habitat patches of dirt-roads, roadsides and stubble fields and even extensively used pastures, hayfields and alfalfa, red clover, and even wheat fields can preserve relatively species-rich Orthoptera assemblages. Contrary weedy sites of these cultivars and intensively used arable lands (maize, sunflower and rape fields) showed extremely low species diversity.

  • Regional economic achievements and reindustrialisation in Hajdú-Bihar county
    65-74
    Views:
    176

    The North Great Plain region is one of the backward regions of Hungary. The low level of economic development is mainly due to the lack of industrial development. The region is poor in natural resources, its main resources are land, natural gas fields, carbon dioxide, thermal water and the clay mineral stock.
    The structure of GDP per capita of the county is different than the country average mainly because of the high proportion of agriculture.
    The proportion of the industry and the building industry is not significant. Of the various service provider sectors, trade, transport and telecommunications have a small proportion, while financial and economic service providers have even lower share, which is due to the fact that these sectors are mostly concentrated in Budapest. The share of public and human service prodivers is higher than average due to the University of Debrecen.
    The GDP which expresses the economic development of the county in a complex way increased four times its previous value in nominal value between 1995–2009. However, if the real value is considered, the increase is less than 25%, as opposed to the country average, which was less than 40%.
    The most complex index of the development level of an economy is GDP expressed either in nominal or real value. If expressed in dollars, GDP is suitable for international comparison with the correction based on the purchasing power parity per person.
    The county represents 4.3% of the people employed in the industrial sector in Hungary, while its share in industrial production is only 3.3% which is lower than the regional and population share of the county within Hungary. As regards industrial production per person, Hajdú-Bihar was the 10th county in Hungary; therefore, it is considered to be a less industrialised county.
    The product structure of GDP is suitable for drawing useful development conclusions, but the result is more reliable if the income creation ability is also analysed on the basis of the employment structure.

  • Examination of the American grapevine leafhopper (Scaphoideus titanus Ball) in Debrecen and Micske (Misca, West Romania)
    77-81
    Views:
    134

    Grapevine flavescence dorée (FD) was detected first in Hungary in 2013 in Zala County (South-West-Hungary). The disease is a serious danger for grapevine growing and grapevine propagating production. In 2014, the pathogen has been found in several new places in Hungary, viz. in Vas and Fejér Counties, and it was also detected in the former location in Zala County. The american grapevine leafhopper (Scaphoideus titanus) is the main vector of the disease. This pest was detected first in Hungary in 2006 and then it has spread all over the country. Since we have not detailed distribution data of this pest in surroundings of Debrecen, therefore we made observations in this region in 2014. The presence of the pest was confirmed by yellow sticky cards in two locations in Debrecen and another site in West Romania near to Hungarian border. We found that S. titanus is present in each sampled sites that cause serious potential danger for the appearance and spread of Grapevine flavescence dorée (FD) in this region.

  • The study of environment-conscious attitudes in the food-industry companies of the Northern-Plain Region
    155-163
    Views:
    64

    that the world of business, profit and work is not a hermetically closed area, but is in interaction with its closer and wider surroundings, ultimately with society and the natural environment.
    The affectedness of each sector and company varies. To be able to tackle these problems, first and foremost the commitment of companies towards environmentally conscious attitude is necessary, which can form as a result of inner obligation or outer pressure. Thus companies will be concerned to measure and quantify the environmental effects of all activities.
    Some of the companies have already given their votes for environment-protection. Both internationally and at home it seems that the responsible leaders of more and more companies build social, human rights and environmental protection considerations in the objects and values of the company apart from profit maximization.
    In my thesis I present the data gathered from a questionnaire survey carried out with food-industry companies in the Northern-Plain Region. The aim of the survey was to evaluate the commitment of companies towards environmental protection via solid data. The fact that more than half of the respondents found the positive effects of environmental protection of little importance and that environmental protection was the last among the aims of some companies reflected greatly in the following outcomes.

  • The past and present of Érmellék wine region
    49-52
    Views:
    101

    Érmellék is an area of the Partium. It is situated between Szilágy and Bihar counties and between River Kraszna and Berettyó. Its name is from Ér, the small brook, which crosses the area. Érmellék is famous for its wine production, because its climate is favourable for this kind of trade. Only a few information sheets of the small Partium-belonging micro-region, Érmellék are published nowadays. Érmellék has extremely picturesque architectural wine cellar rows, of which ”szalacsi” wine cellar row (wine cellar row system) with its unique structure consists of about a thousand cellars.

  • Testing of paraffin oil efficiency against grape powdery mildew in Eger wine region
    73-80
    Views:
    364

    The aim of the present study was to examine the efficiency of paraffin oil against powdery mildew in Eger wine region. The experiment has been carried out in 2013 and 2014 with Chardonnay and Kékfrankos grape varieties, which have different resistance against powdery mildew. The effectiveness of the oil was examined on leaves and clusters (frequency and intensity). This oil was effective against Erysiphe necator infection on field trials in Chile and Brazil. The spread of downy mildew (Plasmopara viticola) was also inhibited by this material in some experiments conducted in Spain and France.

    The differences between oil treatments represented the sensitivity of the grape varieties in accordance with the applied dosages. The oil was effective against powdery mildew with different extent as a result of the so called ”vintage effect”. In 2013, the treatment of the highest dosage (D3) didn’t differed significantly in frequency and intensity of infection from the regular treatment (clusters of Kékfrankos, leaves of Chardonnay). In 2014, the oil was not so effective against powdery mildew compared to 2013. No remarkable differences were detected between the treatments due to the strong pressure of powdery mildew. Furthermore, no any effect of the lowest dosage (D1) was detected in the case of the sensitive clusters of Chardonnay and leaves of Kékfrankos in both experimental years.

    In summary, the oil treatment has an effect against powdery mildew, however this efficiency largely depends on the vintage characteristics and the pressure of powdery mildew. Further investigations are neccessary, for example field trials with combinations of other sprays. The oil can be useable as fungicide with proper care in eco-friendly integrated and bio (ecological) viticulture.

  • The role of agriculture in regional development
    25-30
    Views:
    174

    Agriculture is the leading national economic sector of Hajdú-Bihar county. The proportion of employees in this sector and the share of pro ducts produced in this region is above the country average. The contribution of agriculture to the GDP is 6.3%, as opposed to the average value of the country (3.3%). Based on their primary activity, 8% of the enterprises in the county are classified as agricultural and forestry companies, while this proportion is only 5.3% in the whole country.

    Nearly three quarters (71.1%) of the sowing area is occupied by maize and other cereals, mainly wheat. This proportion is slightly more than the country average (69.2%). The proportional area of oil crops - including sunflower – and roughage is nearly the same as the country average. However, there is a significant difference in vegetable production. Due to the higher intensity of vegetable production, the area occupied by vegetables is three times the country average. 19.4% of the crop products, 23.5% of animal products and living animals, 25.8% of the income generated by production factors and 29.8% of net enterprise income of Hungary originates from the North Great Plain region.

    The facilitation of creating local markets, e.g. local public food supply, satisfying the needs of food trade with local goods, the necessary awareness raising actions, secondary and higher education of experts, as well as the more specific and targeted utilisation of development resources are agricultural development tasks.

  • Analyzing the Population Retaining Ability and the Ability to Economically Provide for a Population in the Micro Region of Püspökladány
    210-219
    Views:
    69

    According to the data of population density, 98% of Hungary’s territory has rural features. Gaining EU supports, in order to focus on developing the most underdeveloped communities, and in order to decrease – not to increase – the differences between communities, the establishment of priorities and determination of the rank of rural communities based on their development potential is necessary. The claim of measurability arises because of comparison and classification. A possibility or a target area of measuring is analysing population retaining and income producing capability of rural areas.
    To gain adequate, many-sided information about the development potentials of a given community, micro- or macro region, complex condition survey, as well as secondary information completed with empirical data and subjective value judgment is essential. The aim in every case is to gain experience of the present condition via determining the direction of change.
    In this study, I deal with the clarification of the definition of population retaining ability and the ability to economically provide for a population and introduce the most important results of the inquiry with questionnaires completed in the frame of an empirical survey.

  • Stability and development of Transdanubian agricultural enterprises
    77-82
    Views:
    104

    Personal fulfilment, financial security, flexibility, relationships, information, rules - these are all hallmarks of entrepreneurship. Furthermore, one more important factor should be added to the list, which enables satisfaction resulting from reliable income and self-fulfillment: this is openness. An open mind to changes, to novelties, and to the workforce is necessary. The central question of the present research is how to effectively develop Hungarian small and medium-sized agricultural enterprises, especially in the Transdanubian region, by utilizing these factors. In addition to production, institutional and price risks, agricultural enterprises, like other sectors, are also affected by massive labour shortages and resource-intensive development objectives. In the research, primary agricultural producers, micro, small and medium-sized enterprises were surveyed through questionnaire in the second and third quarters of 2019. Using the snowball method, both the development opportunities and the risks were mapped in this sector, mostly among growers. The research results show that there is a correlation between satisfaction and development and favorable workplace relationships. These correlations were presented by demonstrating the relationship between technological development, income satisfaction, stable job creation, and the need to try new developments. However, there seems to be an invisible boundary to development in the examined field, which may stem from uncertainty, and yet, it is important to maintain development and learning activity so that the right knowledge and know-how is available to the business when needed. Since the results show that there is a lack of openness to new technologies among the farmers in the studied region, and this may pose a problem in the future in terms of meeting the expectations of precision farming, it is recommended to focus on innovation in the agricultural sector in Hungary.

  • Creating potential agricultural clusters in the Northern Great Plain Region
    63-67
    Views:
    96

    The crisis of the hungarian agricultre is continuous since the ’80s. The compensation is made a dual farm system, which has created barriers to efficient agricultural production. It is confirmed by the economic indexes as well. But the most important natural resources of our country is still the land. Over the past 20 years, the government was not able to work out strategic aims and adequate system for the hungarian agriculture. In the past three decades the clusters has become the most common tool in economic development worldwide. Clusters always base on some local knowledge, and a country can be competitive on the industry in which the resources are concentrated. So the question is, is it possible to „clusterize” the
    agriculture and through this develop the rural economic.

  • Mass occurrence of a Phoma-like fungus on common ragweed (Ambrosia artemisiifolia) in Hajdúság region, East Hungary
    55-60
    Views:
    207

    Common ragweed (Ambrosia artemisiifolia L.) is one of the most important, allergenic weed species in Hungary. A. artemisiifolia invades both a broad range of often disturbed areas (brownfields) and either undisturbed ones like waste lands, roadsides, riverbanks and railway tracks. In field crops it can cause considerable yield losses mainly in sunflower, maize, cereals and soybean. In Hungary many inhabitants suffer from allergy caused by Ambrosia pollen which results a serious human-health risk. The aim of the control is to prevent flowering and seed propagation of A. artemisiifolia. Until now the occurrence of numerous pathogenic fungi which attack common ragweed plants have been identified in Hungary, however there is not yet available biological weed control program because of shortage in acceptable effectiveness, and endangering cultural plant species. During our weed surveys in the region of Hajdúság (East-Hungary) we found numerous common ragweed plants showing heavy necrotic lesions on leaves and stems. The objective of this study was to identify the fungus which was isolated from diseased tissues of common ragweed (A. artemisiifolia). The identification of fungus based on morphological characters of colonies and features of conidia and chlamydospores developed on malt extract agar (MEA) plates. After examination of axenic cultures we revealed that the fungus isolated from the leaves ands stems of common ragweed was a Phoma-like species.

  • Explosion in the species number of Phytophthora genus and its influences on ecology and economy
    11-11
    Views:
    172

    This short abstract and the presentation summarize the latest changes in taxonomy and ecology of Phytophthora species. Occurrence of new P. species in the region have economy impacts as well.