This master thesis deals with the issue of sustainable diets and the potential of the promotion of sustainable principles in public food procurement. The theme is introduced in broader context of environment, public health, historical development, international influences, significant theoretical approaches and fundamental factors affecting current state of diets and nutrition. The aim of the thesis is to specify universal principles of sustainable diets, which were derived from critical review of scientific literature and other relevant texts. The character of this thesis is dominantly theoretical. Discussing the potential of applying the principles of sustainability from the side of public institutions is the main theme of the second part of the study. The research question is related to the possibilities of local organic food consumption in school food system in Czechia. Main results show problematic combination of the requirements for both organic and local food in the context of the volume of school food demand and relatively small local organic production. In general terms the contribution of this thesis is the introduction of the research issues of geography of food and presenting the possibilities of further research. key words: sustainable diets, nutrition transition, food, organic...

The thesis defines a concept of organic food and a closer look is given to an organic agriculture - a place of origin for organic food. The second part discusses benefits of organic food for consumers and looks for consumer purchase motives. Third and fourth part is devoted to rules of labeling and opportunities for improvement in this area. Other consumer brands and a current state on organic food market are presented here as well. Variety of products offered and availability of organic food at the particular points of sale are analyzed in the final part.

The aim of this diploma thesis is to prepare a business plan of an organic farm in Czech Republic. Family business produces high quality agriculture products, as lamb meat, organic milk and other organic milk products. In addition a family company will operate accommodation and restaurant in the four star boarding house. Theoretical part is focused on the term entrepreneurship and justification of necessity for making business plan. Other chapters are devoted to sustainable development, eco-agro tourism and its interconnection to organic agriculture. The chapter about organic agriculture presents its principles and briefly deals with the history and legislation. Practical part includes business plan, which is based on the results of situation analysis. Business proposal of the organic farm is divided into general description of family business, marketing part and financial part.

A produção e o comércio de alimentos orgânicos mostram-se como um mercado em desenvolvimento, e esse se apresenta como alternativa agrícola com menores externalidades negativas. No entanto, há algum tempo já é indicado um processo de convencionalização que o aproxima de práticas de mercado que ameaçam essa capacidade de preservação do ambiente. Nesse processo aparece a venda através de grandes varejistas. Como alternativa surgem diferentes formas de distribuição de alimentos e a possibilidade de alcançar maiores benefícios para a sociedade e o ambiente. Uma delas é a venda em domicílio através de esquemas de cestas, uma variante em que consumidores adquirem semanalmente uma cesta de produtos orgânicos padronizada, através de meios eletrônicos. Utilizando o arcabouço teórico proposto na Sociologia Econômica, vou investigar através dos empresários, funcionários e consumidores que formam essa rede, os interesses, as relações e sua estrutura para responder como essa nova forma de comércio se enraíza socialmente na cidade de São Paulo. Através de entrevistas realizadas a partir de um roteiro semi-estruturado, é possível entender que o novo canal se estabelece a partir do desejo de consumir alimentos orgânicos. Uma falha de mercado representada pela disponibilidade e qualidade precária na rede convencional e outras formas alternativas, os leva a experimentar esse novo canal. A capacidade de abandonar o hábito de compra convencional (ver, tocar, avaliar) dá lugar a um relacionamento com terceiros que se incubem de escolher por esses consumidores a qualidade dos alimentos que serão levados para casa. Lentamente as trocas comerciais se expandem a sinais de reciprocidade, fortalecendo a confiança. Eventualmente o compartilhamento de valores possibilita influenciar os interesses dos consumidores e torná-los mais conscientes. / The production and trade of organic food are defining a growing market and presenting an alternative supposed to cause less negative externalities. Nevertheless, a conventionalization process has been identified some time ago, what takes it closer to market practices that threat its capacity to preserve the environment. Sales through large retailers is part of this process. As options, different ways to distribute food emerge and represent the possibility to reach more benefits to society and environment. One of them is the home delivery of boxes containing fresh food, the box-schemes. It consists of weekly acquisition of a standard set of organic goods through electronic media. Utilizing the theoretical framework proposed by the Economic Sociology, I have investigated with owners, employees and consumers that are part of this social network, the interests, relationships and structures to answer how this new retail format gets socially embedded in Sao Paulo city. Through interviews based on a semi-structured script, it is possible to understand that this new channel is established from the desire to consume organic food. A market failure that causes poor distribution and quality in conventional network drives them to look for alternatives and try this new channel. The capacity to abandon the conventional buying habitus (see, touch, assess) opens space to establish a new tie with people that will choose the quality of the food to be delivered to their homes. Slowly, commercial exchange expands to reciprocity signals and strengthen trust up to a possible redistribution system. Eventually, values sharing makes possible to influence consumers and make them more conscious.

This master´s thesis is engaged in presumptions of organic production development in Czech Republic. It is engaged in consumer behaviour of the organic market customers, the organic market situation and also the organic farmers situation in Czech republic. The aim of this thesis is to explore the relationship of the czech customers to organic food and try to find methods to improve the organic farmers situation.

he objective of this thesis is to prepare a feasibility study of the investment project for the establishment of an organic goat's farm with production of dairy products with organic quality. The thesis also analyses the grant opportunities from the EU Structural Funds for this project.

This thesis deals with evaluation of the current situation of the agriculture company using strategic analysis and assessment of the project´s further development. Specifically, the assessment of the transition from conventional to organic agriculture using metod of discounted payback period.

Les mélanges de variétés de céréales connaissent un regain d’intérêt récent, mais les méthodes pour évaluer et sélectionner des variétés sur l’aptitude au mélange ainsi que pour la conception des mélanges restent peu développées. Il a été montré que les performances de génotypes en culture pure pouvaient différer significativement de leurs performances en mélange, rendant la prédiction des performances de mélanges difficile. Mais évaluer tous les mélanges possibles entre génotypes devient techniquement impossible pour de larges panels. Ainsi, des méthodes expérimentales et statistiques sont nécessaires pour identifier les génotypes qui présentent les meilleures aptitudes au mélange, et pour prédire les meilleures combinaisons de génotypes, à partir de l’observation d’un nombre limité de mélanges.Dans une première partie, nous avons d’abord synthétisé les différentes méthodes proposées dans la littérature pour étudier les interactions plante-plante, en distinguant i) celles basées sur les performances des mélanges, permettant d’estimer des Aptitudes Générale et Spécifique au Mélange, ii) celles où les performances de chaque génotype en mélange sont accessibles, permettant d’estimer des effets Producteur et Associé. Nous avons ensuite proposé un cadre statistique basé sur des modèles mixtes pour estimer l’aptitude au mélange dans des dispositifs incomplets. Ces modèles d’Aptitude au Mélange et le modèle Producteur-Associés ont été appliqués à un panel diversifié de génotypes de blé tendre d’hiver observé dans différents dispositifs expérimentaux, révélant des interactions entre plantes de génotypes différents. Puis, les capacités de ces dispositifs et modèles à prédire les performances de mélanges de validation ont été comparées. Nous avons finalement discuté l’application de ces cadres méthodologiques à l’évaluation de l’aptitude au mélange et la possibilité de les intégrer dans des programmes de sélection.Dans une seconde partie, nous avons réalisé une synthèse bibliographique pour proposer des règles d’association afin de mieux assembler les traits reliés aux interactions entre variétés, et concevoir des idéotypes de mélanges qui favorisent les complémentarités inter-variétés. Lors d’ateliers participatifs impliquant des agriculteurs biologiques, ces règles ont ensuite été validées, infirmées, ou complétées, puis utilisées pour la conception d’idéotypes de mélanges qui correspondent aux pratiques et aux environnements des agriculteurs. Les mélanges conçus sur la base de ces règles ont ensuite été évalués à la ferme sur des critères agronomiques et sur les besoins spécifiques des agriculteurs. Les deux approches complémentaires de la thèse révèlent la possibilité de développer des mélanges variétaux localement adaptés. / Cereal variety mixtures have recently known a renewed interest but methods for screening and breeding varieties for mixing ability, or designing mixtures remain poorly developed. It has been shown that the performance in pure stand of a genotype can significantly differ from its performance in mixture, thus making mixture performance difficult to predict. But testing all the possible mixtures turns technically impossible when using large panels of genotypes. Therefore experimental and statistical methods are necessary to identify the genotypes with the best mixing ability, as well as try to predict the best combinations, from the observation of a limited number of mixtures.In a first part, we have reviewed different methods proposed in the literature to study these plant-to-plant interactions, contrasting i) the ones based on mixture performances, producing General and Specific Mixing Ability estimates, from ii) the ones where the performance of each genotype in the mixture is observed, allowing to estimate Producer and Associate effects. We have then proposed a statistical framework based on mixed models to estimate Mixing Ability in incomplete designs. These Mixing Ability models and the Producer-Associates model have been applied to a diverse panel of bread winter wheat genotypes observed in different experimental designs, revealing interactions between plants of different genotypes. Then the ability of these designs and models to predict the performance of validation mixtures have been compared. We finally discussed how these methodological frameworks can be applied to screening for mixing ability and the possibility to integrate them in breeding programs.In a second part, we performed a literature survey to propose assembly rules for better combining traits associated to plant interactions, and designing mixture idéotypes that favor the complementarities between varieties. During participatory workshops involving organic farmers, these rules have been validated, invalidated, adapted or implemented, and then used for designing mixture ideotypes that fit farmers’ practices and environments. The designed mixtures based on these rules have been assessed in on-farm trials for agronomic criteria and farmers’ specific requirements. The two complementary approaches of this thesis unleash the potential for developing locally adapted cultivar mixtures.

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