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The convergence of price levels is one of the important aspects of a real convergence and is often viewed as a criterion for the evaluation of preparedness. The convergence process of comparative price levels can run either through the exchange rate channel and/or that of nominal prices. The paper is focused on the assessment of comparative price levels and the rate of their convergence in the enlarged European Union within the period of 1999-2003. With the exception of Cyprus, the price levels in the new EU member countries were significantly lower. The greatest differences from the price level of EU countries existed in Poland, Slovakia and Baltic countries. The new member countries differ also in the rate of convergence. When combining their initial position and the rate of convergence, it can be concluded that all countries will be able to reach 80% of the comparative price level of the European Union till the year 2010. In Poland, the development is very unfavourable because its price level will reach only 55% provided that there will be no changes in its development.

Development assistance achieved remarkable success in different periods. For example, Botswana and South Korea reached the great development in the 60s after very bad situation, Indonesia in the 70s, Bolivia and Ghana at the end of the 80s, Uganda and Vietnam in the 90s. In these countries development assistance played important role in economic transformation in formulation of the development of politics. The development assistance contributed educational programs and financially supported the development of public sector. The "Green Revolution" - by means of innovations in agriculture, investments and political changes - improved the live conditions of millions people thanks to the collaboration of many bilateral and multilateral donors. But there are some failures with the foreign aide. While the formed dictator of Zaire Mobutu Sese Seko became one of the richest people in the world (and invested his property in abroad), the development assistance did not stop for many years, Zaire (now the Democratic Republic of Congo) is only one example of the situation, where the permanent flows of assistance ignore or support the corruption and in suitable politics of governments. Tanzania received two milliards dollars for building the roads destiny the twenty years. But the roads were destroyed sooner, than the works could be finished because of insufficient maintenance. The study of World Bank brings the conclusions of the new conception of the development assistance: financial assistance works only in suitable political world; the lowering of poverty is possible only with working institutions - political and economic; effective assistance complete the private investments; receiving country is obliged to have public sector in function; the function of public sector is developing on the activity of civil society; patience and good ideas, not only money, can help to reforms in very unfavorable conditions.

The identification of the improvement areas and utilization of information and communication technologies in agriculture, as the support of the agricultural development in line with the environmental sustainability criteria, have gained importance and priority in our knowledge driven society. Rules define constraints, conditions and policies of how the business processes are to be performed but they also affect the behavior of the resource and facilitate the strategic business goals achieving. They control the business and represent business knowledge. The article deals with business rules and rule technology and identifies the business and technical opportunities they afford company. It shows also how to specify and classify business rules from the business perspective and to establish an approach to managing them that will enable a faster change in business processes and other business concepts in particular business in agricultural area. This article could provide business analysts with an essential approach to understanding, redesigning and communicating what really happens in the business processes.

A smooth entrepreneurial activity requires adequate cash flows. This need is quantified due to the special position of primary agricultural production. The required volume, structure, quality and availability of financial resources creates economic framework for decision making and managing entrepreneurial activities. The results show the lack of total capital in connection to the needs of investment processes and ensuring operational activities in the selected enterprises. Both legal entities (agricultural cooperatives and business enterprises) decreased the total volume of assets and total liabilities in 2004. The economic result was improved in both types of legal entities, in the case of cooperatives by 3 525 SKK/ha a.l. and in business companies by 1 840 SKK/ha a.l. Receivables and payables also decreased, cash flows from business activities have increased. There is a decrease in the balances of the existing loans and new loans were provided by commercial banks for enterprises in primary agricultural production.

Hungary has recently become a member of the European Economic Union (EU) and most of the economic benefits are expected to come from expanded trade with other EU nations. While some variation in agricultural policy continues to exist between EU members, all countries generally, benefit from lower tariffs and expanded trade opportunities. However, Hungary must also be able to compete on the basis of quality and price in order to maintain current domestic markets and sell more to other EU countries. In order for the Hungarian agriculture and food industry to contribute to economic development it must continue to focus on efficiency and competitiveness. Hungary benefits from many natural features, which provide favourable conditions for agriculture: fertile plains, an advantageous climate and production experience, which makes possible a total yearly agricultural and food products trade surplus fluctuating between 1.5 and 2 billion US $ for the last 12 years. However, after the EU accession, the Hungarian internal market has become fully open and domestic products have to compete with the products of other EU members. This is why the renewal of food regulation and policy was indispensable. This article examines the Hungarian food policy (1) before the transformation to a market oriented system, when the policy was quantity orientated, (2) during the pre-accession period, when quality policy became more important, and (3) after accession to the EU where food safety has become more important.

The Velvet Revolution in November 1989 in the former Czechoslovakia opened the way to the renewal of the democratic political system. One of the most visible aspects of the Czech political development consisted in the renewal of the essential functions of elections and political parties. On the local level, however, the political process - as well as in other post-communist countries - continued to be for a long time influenced by the remains of the former centralized system wherein the local administration used to be subjected to the central state power. Municipal elections took hold in these countries, however, the local government remained in the embryonic state and a certain absence of real political and economic decision-making mechanism on the local level continued to show. The public administration in the Czech Republic had to deal with the changes in the administrative division of the state, the split of the Czechoslovak federation as well as the fragmentation of municipalities whose number increased by 50 percent. Decision making mechanisms on the local and regional level were suffering from the incomplete territorial hierarchy of public administration and from the unclear division of power between the state administration and local administration bodies. Only at the end of the 1990s, the public administration in the Czech Republic started to get a more integrated and specific shape. Citizens participation in the political process represents one of the key issues of representative democracy. The contemporary democracy has to face the decrease in voter turnout and the low interest of citizens to assume responsibility within the political process. The spread of democratising process following the fall of the iron curtain should not overshadow the risk of internal weakness of democracy. The solution should be looked for in more responsible citizenship and citizens political participation. The degree of political participation is considered (together with political pluralism) to be the key element of representative democracy in general terms, as well as of democratic process on the local and regional level. The objective of this paper is to describe the specifics of citizens local political participation in the Czech Republic and to show the differences between rural and urban areas. The paper concentrates on voting and voter turnout but deals also with other forms of citizens political participation.

Management of natural resources in the context of sustainable development can be defined as the economic management of natural resources to allow their perpetual and undiminished supply. At the same time, use of the local natural resources should contribute to the economic and social development of the local community. It is vitally important to emphasize the role of local participation and knowledge. Experience, understanding, and expertise need to be assessed to help to determine the most effective roles for local individuals within the sustainable natural resource project. This assessment and its implications for the economy, community and protection of natural resources at the state, regional and local levels are a subject for case study.

This paper compares two Taiwanese high-tech enterprises, Acer and Trend Micro, which choose different international brand marketing strategies due to the diverse managing types and product characteristics. The hardware products and business software sold by Acer and Trend Micro are discussed to reveal their international brand development and marketing strategy. The research findings can be provided for different enterprises for decision-making when they consider their internationalization and brand strategy.

The real trade development is estimated by the recalculation of nominal value through unit values (prices). The unit value indices reflect, besides the change of prices, also the changes in the structure and qualitative changes of the traded products. In the 70s, the average yearly increase of unit values reached 14% and reflected namely the inflation caused by the oil shocks. Since then, it reaches in average up to 1%. We can suppose that, under the normal conditions, unit values growth is rather the consequence of the qualitative and structural changes (increased share of the more sophisticated products of processing industry), in fact, prices in international trade have been decreasing for years already. The question whether the world trade growth rates decrease or accelerate is then still open. It is certain that the world trade volume growth rate (6.3%) has shown a considerable surpass to the production growth rate (4.1%).

This paper analyses the enforcement of the 2003 CAP reform in 5 countries of the West European Union: France, Germany, Italy, Spain and United Kingdom. The reform gives multiple possibilities of adaptation at a national or regional level. Two standard strategies are foreseen: that of the States which mobilized to the maximum the innovations that the reform allowed, and that of the States which have chosen the option of a minimal application, to limit the effects of reorientation of the productions (maximum sectors remain coupled) or of the redistribution of the payments (historical references). The great diversity of the conditions of agricultural production is one of the main explanations of the differences of enforcement of the reform. We analyse the first impacts of the reform. One can generally expect that the market of entitlements will be a priori limited, because of the links of the entitlements to land. The regionalisation of the calculation of the entitlements is incontestably the mechanism, which introduces the most redistributive effects, compared to the individual historical references. We examine also the consequences of the Single Payment System (SPS) on land rent and land market.

Farm-sale, also known as direct sale, provides major opportunities to farmers in the future. This kind of sale is of increasing popularity in Europe, but farmers have to be familiar with the regulations concerning processing and sales. Mainly small and medium farmers prefer direct sale. In this activity, they must compete with an increasing number of hypermarkets, supermarkets and wholesale markets. When talking about direct sale, it means that farmers sell their products directly to customers. There are more options: (i) sale in their own shop, (ii) through a catalogue and (iii) delivery to restaurants and shops. It has to be mentioned that the development of special local products means the products representing a common local value and principally those that can be associated with a specific village due to their historical heritage or tradition. There is no standard or official definition for special local products that includes all the possible factors. Efforts of marketing and rural development experts are needed to identify and market these special products to the appropriate consumers. Meanwhile it has to be noticed that, mainly in Europe, the definition and the possibilities of product regulation concerning geographical origin, are clearly defined and well-known. However, the "protection of geographical origin" is not the same issue as "special local products" mentioned above. In a wider sense, these can be described from a marketing point of view as "local product, common product" that interconnect and integrate villages, people and approaches, but are not regulated and protected legally. These products mentioned above reach the consumer in relatively small quantities, through direct sale, and they are often attached to the services of rural tourism. The local products are also developed to ensure high quality products for the consumer or to attract tourists. People can be proud of them since they cannot be bought anywhere else. Advisers are also helping farmers choose the right sales channels to diversify their marketing activities.

The article is dealing with the evaluation of socio-economic development in Slovakia from the point of view of urban and the rural regions in 1999-2005, based on analysis of regional socio-economic indicators. This development is characterised by deepening differentiation between the urban and rural districts in the demographic structure of population, employment, unemployment, level of wages and salaries and private enterprising activities. Demographic structure in the rural regions, compared to the urban regions, is characterised by the increase of the share of population in post-productive age, ageing index and the unfavourable index of economic burden. Employment in the rural regions decreased at a more rapid rate than in the urban regions. From the unemployment point of view, there are significant regional differences in the SR. The worst affected are the regions of Eastern and south of Central Slovakia which suffer from the underdeveloped economic infrastructure, lower level of education, bankruptcy of the dominant industrial employers and a large share of agrarian population, where impact of transformation measures was the most severe. Unemployment rate in the rural regions was 2.2 times higher than in the urban regions in 2005. Growth rate of average wages and salaries is slower in the rural regions compared to the urban ones and the average of the SR. In the period of 1999-2005, the level of average wages and salaries in the rural regions accounted for 62.4% of average wages and salaries in the urban regions, during which the time trend of increasing wage disparity was continuing all the time. The trend of utilisation of cheap labour force for short part-time jobs is evident, particularly in the rural regions, which is in contrast to the growth of the standard of living and sustainable development of underdeveloped regions. The differentiation of economic level between urban and the rural regions is expressed also in the share of entrepreneurial entities in economically active population which tells against the rural regions in spite of the diminished differentiation in this indicator in 1999-2005. The declining rate of growth in number of entrepreneurs in the urban regions is a consequence of the saturation of spatial and employment opportunities, while there is a substantially larger potential of acceleration of private enterprising in the rural regions. Continuation of this development leads to the socially unacceptable differentiation and undesirable development of dual economies in the country and that is why it is necessary to solve this issue as a priority within the framework of the strategy of economic development of the SR.

When modelling an employee competency, several facets of this theoretical construct could be identified. One of them is grounded in the employee's attitudes to work and organization, namely in her/his job involvement, organizational commitment, responsibility etc. The paper deals with results of a survey comparing work and organizational attitudes of four groups of subjects. The groups differed in age (20-30 and 50-60) and gender. The survey was a part of a wider research effort aimed at building up a new method of work attitudes measurement. The previous research has shown a rather specific response pattern in the Czech respondents. The survey dealt with presently tries to find more details as goes about the patterns mentioned and to help in constructing a final version of the method. The authors expect that the method will prove to be useful both in theory development and in the field.

Management can be understood as a "bonsai" integrating its roots in long-term bases with the trunk of general management growing from it supporting a cultivated treetop branching out in the real time. Managers need to develop a new understanding of the management process that will respond to global trends in the world's economy. More precisely it needs to create more progressive management styles. Management will be successful if it is based upon people's own knowledge and their development. In addition it has to look beyond the confines of the company and even of the country and to take into account the on-going and permanent development of technology. With particular regard to technology, man should be seen as a bearer of knowledge, regarded as an investment and seen as a source of long-term profit.

The main purpose of this paper is to investigate the opportunities for further expansion in the segment of the functional food as highly innovative products based on market segmentation done from the consumer perspective. The survey analysed consumers and their relationship to Functional Food. The relationship between nutrition and health was evaluated as well as their trust towards some actors in the field of food, e.g. producers and retailers and their promotion claims on the one side and medical doctors and nutritional consultants and their advices on the other side. Germany, Poland, Spain and England were the analyzed countries of this survey. About 600 consumers have been interviewed. Afterwards they were grouped into five segments of buyers and three groups of non-buyers of Functional Food.

In order to achieve success on the domestic and foreign markets, the producers and distributors should know the customers´ behavior and possibilities how to positively affect it for their advantage. The consumers carry out many shopping decisions every day. Most of the big sellers study these decisions in order to know what, where, when, how, how much or how many and why the customers buy. The marketers have to know how the consumers will react to different marketing programmes used by the company. The communication media such as information carriers are objective decision of the individual advertising sponsors. This paper shows the volume of financial means invested by the advertising sponsors, production groups as well as the analysis of the food advertising market and the following survey of the biggest food advertisers in the Slovak Republic.

Research and historical development showed that market economy with social orientation is more effective than without it. Emerging from these facts, the paper is focused on the need of monitoring the social information in managerial accounting and in managerial information systems in enterprises. Since the social situation and the living standard of agriculture in the Slovak Republic are lagging behind, the above mentioned issues are documented in comparison with other branches of national economy. The method of Balanced Scorecard is characterized in brief as well as a new model of economy, called the Economy of Communion that draw attention towards the social aspect of entrepreneuring. The main spheres of social information are mentioned that are necessary for operating at the level of an enterprise and at a broader level. Measures in the field of operating and its information assurance are offered in order to improve the social situation and living standard in agriculture.

This paper deals with problems of rural tourism development. The works is focused on researching the situation in the area of rural tourism in the Czech Republic, on understanding the attitudes of entrepreneurial sphere and rural population to this entrepreneurship and mainly on the determination of limiting factors that prevent this form of tourism from a more distinctive development. Rural tourism in the Czech Republic is still in the initiating stage of its development and it is not as developed as in some countries in West Europe. This goal has been reached with the help of primary questionnaire inquiry among business and agricultural subjects in rural areas in the individual regions and the detail results of this questionnaire inquiry are enclosed to the following paper. These identified factors were mainly insufficient financial means and at the same time insufficient state assistance connected with this. Insufficient awareness of this support as well as its inaccessibility for small business appears to be a difficulty, too. From the other obstacles, we can mention the current legislation system, bureaucracy, the state of communication and tourist infrastructure, fears of neighbours' intolerance and losing privacy and also unfamiliarity and little experience.

The paper is focused on study of information systems that can be applied in the process of marketing planning. General terms from information systems theory are examined from marketing perspective, particular examples of marketing activities support are identified on the basis of literature review and global structure of the Marketing Information System (MkIS) is proposed. The main subsystems of MkIS - internal reporting system, marketing intelligence system, marketing research system, and decision support system are discussed in higher level of detail. The main attention is paid not only to supported marketing processes but also to technologies that can be used in individual parts of MkIS. The result is the architecture that integrates isolated marketing applications into one comprehensible framework. This architecture also creates a framework for following research in the field of marketing activities support.

The valuation of assets is a relatively challenging activity as well as a scientific discipline having an impact on the amount of the reported assets and economic result process. The report deals with the issue of valuation of the tangible fixed assets in the accounting entities compiling the financial statements pursuant to the Czech national legislation and in conformity with the requirements of the International Accounting Standards IAS/IFRS and US GAAP. The substantial differences in the definitions and valuation of the tangible fixed assets in these systems have been determined, indicating the impact on the economy of the accounting entity, both at the primary acquisition and as at the day of the closing of books. Attention has also been paid to the possibilities of recording the value decreases and to subsequent expenses. The analysis of legal regulations was completed with the analysis of the financial statements from selected economic entities. As per the international standards, the main difference consists in the possibility of component depreciation of tangible assets or, on the other hand, the possibility of group depreciation, in the differences in valuation in the event of acquisition paid for and of acquisition by one's own production and in the possibility to consider the costs of disposal of assets. The subsequent expenses are also construed in a different manner: as per the Czech regulation, they are construed as repairs and maintenance. The substantial difference in comparison with the Czech regulation consists in the possibility of re-valuation of assets upwards as well as the method of actual value determination.

The aim of the rural development programs is the stabilisation of rural population and forming the perspectives for increasing the quality of life for all social groups in the communities as well as in the region. Less developed areas suffer for a long term from the cumulated negative factors of economic and social development. Their detailed identification which is theoretically considered in this paper can help to improve the particular measures towards the removal of the most urgent problems.

Effects of thermostable lipolytic enzymes Pseudomonas fluorescens 66 ZB in pasteurized milk on concentration of free fatty acids (VMK) in milk were studied in selected milk samples. Identical bulk milk samples were analysed by the method specified in previous papers (Vyletělová et al. 1999a, b, 2000). Reference milk samples (without bacterial strains) and the experimental ones (containing Ps. fl. 150 th. CFU/ml and 2800 th. CFU/ml, resp.) were stored at 6.5°C and 14°C and analysed at regular time intervals (24 h) - Table 1. An extractive-titric method (Kadlec et al. 1996; Table 2 and Fig. 2) was used for monitoring of fatty acid (MK) liberation. Precise analyses of MK and VMK were made by the chromatographic method (Figs. 1, 3 and 4). Medium-chain fatty acids (C12-C16) are liberated first of all; short-chain acids (C6-C10) were found sporadically or in very small quantities (Table 2). Dissociation constant of the specific fatty acid liberated from milk fat affects principally relationships between pH and free fatty acid concentration. The predominating proportion of long-chain acids in liberated fatty acid formation is associated with lower reduction of pH as compared to the predomination of fatty acids with shorter chains associated with more substantial reduction of pH. In our study, a rapid decrease of pH was noted before 168 h (Table 24); this corresponds to low concentrations of short-chain free fatty acids. Vyletělová et al. (2000) found significant relations between pH and contents of VMK (measured by the extractive-titric method); in some samples, correlation coefficients amounted to r = -0.93*** (P ≤ 0.001). The extractive-titric method analysing VMK concentrations (mmol/kg milk fat) provides results characterized by a systematic rise (e.g., 32.0 mmol/kg instead of 13.0 mmol/kg in raw milk). According to Kratochvíl (1992) 20 mmol VMK/kg milk fat signalized the starting point characterizing flavour degradation of milk caused by activities of fatty acids C12-C14 above all; the transformed value (respecting specifics of the extractive-titric method) amounts to 49 mmol/kg. In case of higher storage temperature a significant break is found after 144 h; in case of lower temperature this break is after 192 h (Table 2). Limits determining potential lipolytic modifications of milk flavour (RLZCHV) as related to specific samples and temperatures at VMK levels amounting to 49 mmol/kg or 20 mmol/kg are outlined in Fig. 2. Milk samples No. 5 and No. 6 stored at higher temperature surpassed this risk limit at 56 h and 64 h, respectively (Table 2, Fig. 2). On the contrary, milk samples stored temperatures corresponding to the standard storage temperature (storage of raw milk, transport, storage of pasteurized milk) surpass the mentioned risk level after 90 h and 140.5 h. Obtained results document the predominant role of storage temperature in the whole complex (production and processing of milk as a raw material or an intermediate product); evident differences in contamination rates (105 an 106) can be characterized as secondary effects in this case (Table 2). As related to practical conditions, the mentioned facts imply immediate processing of raw milk and pasteurized milk. This postulate must be respected namely by da

A wide array of antioxidative and anti-inflammatory substances derived from edible plants have been reported to possess chemopreventive and chemoprotective activities. Among the most extensively investigated and well-defined dietary chemopreventives is curcumin. Using the Ames test and in vivo micronucleus test, chemiluminescence test, blastic transformation test, and comet assay, we examined the antimutagenic effects of the chemically identified chemoprotective substance curcumin (diferuloylmethane) in the pure form on mutagenicity induced by three reference mutagens: aflatoxin B₁ (AFB₁), 2-amino-3-metylimidazo[4,5-f]quinoline (IQ), and N-nitroso-N-metylurea (MNU), and the effect of curcumin on the immunosuppression caused by these mutagens. Curcumin in the pure form showed a clear antimutagenic and immunomodulatory activities on mutagenicity and immunosuppression induced by reference mutagens.

A simple and rapid multiresidue method for the determination of nine banned synthetic dyes in various spices has been developed. Reversed phase HPLC coupled with mass spectrometry (tandem in time-ion trap mass analyser) was employed for the examination of crude acetonitrile extract acidified with acetic acid. The detection limits of Para Red, Sudan Orange G, Sudan I, Sudan II, Sudan III, Sudan IV, Sudan Red 7B and Rhodamine B were in the range of 0.02-0.1 mg/kg, the recoveries ranged from 75.7-92.3% with repeatability of 0.9-11.3%. Rather worse performance characteristics were obtained with Tropaeolin 000, obviously due to its more polar nature as compared to other dyes involved in this study. In spite of that, the developed method can be used for a reliable control of a wide range of dyes used for illegal colouring of various spices.

The present study has been done in order to determine the risks inherent in the milk production in Turkey. For that objective, factors such as the milk yield, the gross revenues realised, and the price levels as reflected to the producer's benefits, have been taken into account. Upon the calculation of the measures for variables, fluctuations were found in the milk yield, prices, and gross revenues. Based on the hypothesis that the information possessed by the producer on the economic and technological developments is scarce and restrained, the variable coefficient has been calculated as 10.81% for yield, 23.26% for prices, and 30.01% for gross revenues, respectively. With the hypothesis that the producers are aware of and informed on the economic and technological developments, these ratios, that is to say, the fortuitous variable coefficients would be, respectively, 2.07%, 15.96%, and 16.07%. According to the conclusions reached, an environment in which the producers can take rational decisions concerning the milk production can be said not to exist. For this reason, the government intervention through efficient measures for the dairy production will be necessary. Furthermore, the producers should be given informational support through the published studies in the agricultural extension.

In this research, the growth and survival of E. coli O157:H7, Salmonella typhimurium and Staphylococcus aureus were investigated during kefir fermentation. Two different levels of inoculation of the strains were conducted; the levels of 102 CFU/ml (EC-1, SA-1 and S-1) and 103 CFU/ml (EC-2, SA-2 and S-2). At 0, 2, 6, 12, and 24 hours of kefir fermentation at 23 ± 1°C, samples were taken and the counts of E. coli O157:H7, S. typhimurium, and S. aureus were determined. EC-1 grew from 2.29 ± 0.02 log CFU/ml to 4.13 ± 0.18 log CFU/ml whereas EC-2 grew from 3.22 ± 0.04 log CFU/ml to 6.78 ± 0.99 log CFU/ml. Both S-1 and S-2 viable populations grew during the fermentation period, where sample S-1 grew from 2.37 ± 0.20 log CFU/ml to 4.64 ± 0.67 log CFU/ml and sample S-2 grew from 3.52 ± 0.07 log CFU/ml to 5.60 ± 0.10 log CFU/ml. SA-2 strains grew from 3.06 log CFU/ml to 3.64 log CFU/ml, SA-1 strains grew from 2.28 log CFU/ml to 2.66 log CFU/ml. According to the findings, E. coli O157:H7, S. typhimurium, and S. aureus can survive in kefir during fermentation.

In 2003-2005 faba bean accessions were evaluated in laboratory and field inoculation tests with a mixture of differently virulent isolates for susceptibility to anthracnose caused by the fungus Ascochyta fabae Speg. All tested commercial faba bean cultivars, both colour and white flowering, were found to be susceptible or highly susceptible. The highest level of resistance was found only in declared sources of resistance: 29H, L-8 and Petra. Segregation of F₂ plants derived from the cross of cultivar Merlin (susceptible, white flowering) with line Petra (resistant, colour flowering) was observed. The plants were moderately susceptible to highly susceptible. This finding indicates a multigenic character of resistance. Repeated selection cycles with the selection of resistant plants in F₂ and F₃ generations were performed. In the F4 generation, colour flowering lines with a high level of resistance, nearly at the same level as in line Petra, were obtained. In comparison with the parental cultivar Merlin an increase in the resistance of selected white flowering lines was proved. Resistance will be increased/stabilized in further repeated selection cycles.

Wild potato species (genus Solanum, section Petota) represent a tremendously diverse gene pool which is traditionally utilized as a source of diverse traits for potato breeding. Abiotic and biotic stress tolerance and resistance belong to the most frequently utilized traits of wild species in potato breeding programs. This review provides an introduction to the taxonomy, centre of diversity, genetic characteristics, evolution and important tolerance and resistance traits of wild potatoes and their use for potato breeding. The review has been written for readers who are interested in the problems of finding and utilization of new resistance genes from the wild genetic resources.

The results of evaluation of powdery mildew resistance in winter barley varieties in 285 Czech Official Trials conducted at 20 locations were analysed. Over the period, the number of varieties tested per year increased from four to seven in 1976-1985 to 53-61 in 2002-2005. To assess the resistance of varieties, only trials with sufficient disease severity were used. In 1976-2000, six varieties (1.7% of the varieties tested in the given years) ranked among resistant (average resistance of a variety in a year > 7.5) including NR-468 possessing the gene Mla13, KM-2099 with mlo and Marinka with the genes Mla7, MlaMu2. In 2001-2005, already 33 varieties (16.9%) ranked among resistant, of which Traminer possessing the genes Ml(St) and Ml(IM9 dominated. The proportion of susceptible varieties (average resistance ≤ 5.5) did not change in the two mentioned periods. Two-rowed varieties began to be tested as late as in 1990 (the first variety was Danilo), however, no difference was found in the resistance of two- and six-rowed varieties. Using an example of two pairs of varieties (Dura-Miraj and Marinka-Tiffany) with identical genes for specific resistance but with different resistance in the field, the efficiency of non-specific resistance is discussed. The resistance of domestic and foreign varieties was similar in 1994-2000; however, in 2001-2005 the difference was 0.75 point to disadvantage of domestic ones.