Invasions of non-native species cause problems in ecosystems worldwide, and despite the extensive effort that has been put into research about invasions, we still lack a good understanding for why some, but not other, communities resist these invasions. In this doctoral thesis I test hypotheses on biotic resistance using a large dataset of more than 1000 both failed and successful introductions of freshwater fish into Swedish lakes. We have found that the classic species richness hypothesis is a poor descriptor of introduction success because it fails to acknowledge that resident species contribute to the resistance in different ways. We developed a new measure of biotic resistance, the weighted species richness, which takes into account that the resident species contributes to the resistance with different strength and sign. Further, we correlated performance traits of species in their role as an invader and as a resident species to predict how the biotic resistance of these communities would develop over time. We found a positive correlation between performance traits: Some species have high introduction success, they make a large contribution to the resistance, and they cause extinctions when introduced but do not go extinct themselves when other species establishes, whereas other species are weak performers in these respects. Thus, the biotic resistance of these communities should grow stronger as non-native species accumulates. These results give us clues about what type of communities that should be most sensitive to further invasions, i.e., communities harboring species weak performers.  My results show that the biotic resistance of communities is an important factor in determining invasibility of a community. They also show that methods for quantifying resistance must take into account how interactions are structured in nature. What determine the biotic resistance of a community is the type of interactions that the resident species have with the invader and not the species richness of the community.

Les années récentes ont témoigné un manque de dynamisme des marchés boursiers qui a poussé un nombre croissant d'investisseurs à se tourner vers les marchés privés, notamment le private equity. Ce manuscrit aborde des thématiques qui caractérisent les mutations que connait le private equity aujourd'hui: une recherche de liquidité relative, une quête de rendements supérieurs dans de nouveaux marchés et une stabilité des ressources humaines qui restent un vecteur de communication important lors des levées de fonds auprès des investisseurs.Le premier essai de cette thèse examine l'impact de l'introduction en bourse des véhicules de private equity sur leurs performances et montre que cette recherche de liquidité induit une diminution significative des performances réalisées. Le deuxième essai traite de la performance du private equity dans les marchés émergents et montre que la réussite de ces investissements est liée à la distance géographique et à la proximité culturelle entre les firmes de private equity et les entreprises financées.Enfin, le dernier essai de cette thèse examine l'importance du capital humain pour les firmes de private equity et montre que la mobilité des managers détériore les performances réalisées. / Recent years have witnessed a lack of momentum in equity markets that has driven a growing number of investors to turn to private markets, including private equity.This manuscript addresses research questions that characterize the changes that private equity is experiencing today: a search for relative liquidity, a quest for superior returns in new markets, and a stability in human capital, which remains an important vector of communication during fundraising.The first dissertation of this thesis examines the impact of the public listing of private equity vehicles on their performance and shows that exposure to liquidity induces significantly lower realized performances.The second dissertation examines the performance of private equity in emerging markets and shows that the success of these investments is related to the geographic distance and the cultural proximity between private equity firms and the investee companies.Finally, the last dissertation of this thesis examines the importance of human capital for private equity firms and shows that manager mobility deteriorates performance.

Bakgrund och problem: En introduktion till arbetsplatsen ger det första intrycket av situationen. Introduktionen innefattar de aktiviteter och processer som krävs för att kunna genomföra ett arbete (Arbetsmiljöverket, 2018), men även förvärvande av den sociala kunskapen och kompetens som krävs i arbetet (Benzinger, 2016). En tidigare studie av Arbetsmiljöverket (2018) visar att organisationer har bristande introduktioner av bemanningsanställda. Tidigare studier har fokuserat på de brister som finns i bemanningsanställdas arbetssituation hos organisationer. Studierna har visat att det finns bristande säkerhetsgenomgångar, arbetstrygghet, utvecklingsmöjligheter och socialt stöd för bemanningsanställda. Syfte och metod: Syftet med denna studien var att undersöka hur kunskapsöverföring och gemenskap kan påverka introduktionen av bemanningsanställda. Studien tar utgångspunkt i Knowledge Management, Knowledge Sharing, “medarbetarskapshjulet” samt inskolningskurvor. Dessa teorier har fungerat som perspektiv för att besvara studiens problemformulering. En fallstudie har genomförts med ett företag inom byggämnesindustrin. Totalt åtta stycken semistrukturerade intervjuer har genomförts med bemanningsanställda, introduktionsansvariga och produktionsledare. Respondenterna har praktisk erfarenhet av hur introduktionen utförs hos fallföretaget. Utöver intervjuer har det genomförts observationer, samt att företagets introduktionsplan har blivit granskad vilket har givit en bredare empirisk grund för denna studie. Resultat och slutsatser: Det empiriska materialet resulterade i att en utvecklad introduktionsplan till arbetsplatsen underlättade processen att lära sig arbetet och komma in i gruppen. Introduktionsplanen tydliggjorde vem som gör vad och vilken kunskap som krävs, vilket skapade både klarhet och trygghet för samtliga parter. En introduktionsansvarig skapade en känsla av socialt stöd och gör det enklare att komma in i arbetsgruppen. / Background and problem: An introduction to a workplace gives the first impression of the situation. The introduction includes activities and processes required to be able to fulfill the work (Arbetsmiljöverket, 2018), but also the acquisition of the social knowledge and skills required in the work (Benzinger, 2016). A former study made by Arbetsmiljöverket (2018) shows that organizations have inadequate introductions for temporary workers. Previous studies have been focused on the shortcomings of temporary workers work situation at organizations. The studies have shown that there are inadequate safety briefings, work security, development opportunities and social support for temporary workers. Aim and method: The purpose of this study was to examine how the transfer of knowledge and fellowship can influence the introduction for temporary workers. The study is based on Knowledge Management, Knowledge Sharing, “medarbetarskapshjulet” and introduction curves. These theories have served as perspectives for answering the study’s problem formulation. A case study were conducted with one company in the building material industry. A total of eight semi-structured interviews were conducted with temporary workers, introduction managers and production managers. The respondents have practical experience of how the introduction is carried out at the case company. In addition to the interviews, observations have been carried out and the company's introduction plan has been reviewed, which provided a broader empirical basis for this study. Results and conclusions: The empirical material resulted in that a developed introduction plan to a workplace facilitated the process of learning the work and getting into the group. The introduction plan clarified who does what and what knowledge that is required, which created both clarity and security for all parties. An introductory manager created a sense ofsocial support and makes it easier to get into the working group.

A presente pesquisa trata da descrição e da análise de estratégias retóricas que abrangem a distribuição e organização funcional e conteudística de segmentos textuais de introduções de dissertações de mestrado. Para o fim proposto, os textos de introduções foram extraídos de dissertações de mestrado do Institut für Deutsch als Fremdsprache/Transnationale Germanistik da LMU de Munique e da Área de Alemão da USP, Brasil, escritas nas línguas de cada país: alemão e português. O corpus é composto de 44 textos de introdução. Com base na perspectiva linguístico-contrastiva, as constatações da retórica contrastiva, juntamente com a análise de gênero de orientação sócio-retórica, formam os fundamentos teóricos desse trabalho. Com o intuito de determinar a distribuição e a organização dos segmentos textuais, foi empregado o modelo CARS de SWALES (1990, 2004), desenvolvido inicialmente para analisar a estrutura organizacional de introduções científicas do gênero artigo. A prioridade da presente pesquisa foi a de identificar e localizar as estratégias que o autor da dissertação de mestrado utiliza, para apresentar seu próprio trabalho (movimento 3 de Swales). Devido à grande variação da sequência de estratégias retóricas não foi possível determinar um modelo organizacional claro dos textos nas duas línguas. Contudo, a descrição dos dados tornou possível a constatação de estratégias principais e secundárias empregadas na apresentação dos próprios trabalhos. Incluem-se entre as estratégias principais: a) a denominação do estabelecimento de metas, b) indicações sobre o método de procedimento, assim como c) indicações sobre a estrutura textual. Adicionalmente, é importante para os autores dos textos em questão indicar o que o trabalho não é capaz de realizar, uma estratégia não existente no modelo de Swales e que, para as introduções das dissertações de mestrado consideradas, é essencial. Contextos diferentes da produção (como, por exemplo, posições com graus hierárquicos distintos) conduzem a uma valorização diferente nas metas comunicativas, fazendo com que, por exemplo, o movimento 3 tenha um papel mais importante nas introduções de dissertações do que em artigos científicos, nos quais a revelação de uma lacuna de pesquisa é muito importante. Além da identificação e da organização de estratégias retóricas, também foi considerada a sua realização linguística e gramatical no alemão e no português, assim como examinado o emprego dos pronomes pessoais que indicam as autorreferências. Assim, objetivou-se verificar em que papéis acadêmicos o autor aparece em seus textos. Os fundamentos teóricos empregados foram fornecidos por HYLAND (2002), STEINHOFF (2007) e SCHMIDT (2010). Como resultado é possível afirmar que a) os autores dos textos em português não seguem um mesmo modelo no que concerne ao emprego de pronomes pessoais, b) nos textos em alemão o autor quase não aparece, fazendo com que as referências de autor sem a presença do agente predominem, e c) nos textos em português e em alemão o autor aparece predominantemente na função de autor, isto é, quando, por exemplo, aparecem indicações sobre a organização textual. Os resultados deste trabalho têm como meta servir de subsídio para a produção de material didático que forneça aos futuros mestrandos recursos para a elaboração de textos de introdução nas duas línguas. / This study explores the description and analysis of rhetorical strategies utilized in the content-related distribution and organization of textual segments of master theses introductions. For this purpose, introduction texts were taken from masters dissertations of the Institut für Deutsch als Fremdsprache/Transnationale Germanistik of the LMU of Munich and of the German Department at Universidade de São Paulo, Brazil, each written in its respective national language: German and Portuguese. The corpus consists of 44 introductions. Due to the linguistic contrastive perspective, the findings of the contrastive rhetoric constitute the theoretical basis of this research, together with the genre analysis of socio-rhetoric orientation. In order to determine the distribution and disposal of the text segments, the CARS model by SWALES (1990, 2004) was employed. This model was initially developed to analyze the organizational structure of scientific introductions of research articles. The primary focus of this study is to identify and locate the strategies that each dissertation author uses to present its own work (Swales move 3). Due to a great variety of rhetoric sequences, it was not possible to determine a conclusive organizational structure of the texts in either language. However, a description of the data made it possible to determine primary and secondary strategies employed in the presentation of master theses. Primary strategies include: a) indication of goal setting, b) indications concerning the methodical procedure, as well as c) indications about the structure of the text. Furthermore, it is important for the authors to indicate what cannot be achieved, a strategy which is not considered by Swales in his model and which is essential for the analyzed introductions of masters dissertations. Different production contexts (as, for example, positions with different hierarchical degrees) lead to a different valuation of the communicative goals, having as a result that, for example, move three in master thesis introductions plays a more important role than in scientific articles, in which the indication of a research gap is of great importance. In addition to the identification and organization of rhetoric strategies, linguistic and grammatical use in German and Portuguese was also considered, as well as the use of personal pronouns that indicate references to the author depending on the agent. The intention was to verify in which academic rules the author appears in his texts. The theoretical fundamentals employed were based on HYLAND (2002), STEINHOFF (2007) and SCHMIDT (2010). As a result, it is possible to state that a) the authors of texts in Portuguese do not follow the same model concerning the use of personal pronouns, b) in the German text the authorial presence is frequently hidden behind passive forms c) in the Portuguese, as well as in the German texts, the author appears mainly in the rule of the agent, for example, when indications about the textual organization appear. The results of this work intend to serve as a basis for the production of didactic materials by providing instruments for future masters students to employ in the production of introduction texts in both languages.

Zoological institutions emphasise the importance of excelling in the areas of animal welfare, conservation, education, and research, not only to better the lives of the animals under their care, but to also influence the general population in the pursuit to conserve the natural world. As a result, zoo life is anything but simple. This research project monitored the lives of a captive group of chimpanzees over a two-and-a-half-year period, during which time we explored four research topics while assessing the development of a cognitive research programme and chimpanzee (Pan troglodytes) introductions in a zoo: welfare, cognition, public engagement with science, and animal management. The project’s use of touchscreen technology and on-exhibit research was the first of its kind for the Royal Zoological Society of Scotland’s Edinburgh Zoo. As a result, the researchers placed a great deal of importance not only on assessing the welfare of the chimpanzees throughout training and testing phases, but also assessing the public’s perception of cognitive research being conducted through an internationally broadcast documentary about the project. In the short duration of the project, these research naïve chimpanzees did not fully grasp the concept of video selection in our free-choice activity, but overall, the introduction of a cognitive research programme did not compromise welfare, and the chimpanzees’ repeated interest suggests that chimpanzees found the research to be reinforcing. Partly funded by the BBC, the Chimpcam Project was shown in the UK (broadcast January 2010) and in a variety of other countries, including the United States and Canada (on Animal Planet in 2011). The broadcast allowed us to gather information over the internet on the wider public’s perception of conducting research with great apes in zoos, to complement data collected on visitors to the exhibit itself. Our assessment of the documentary’s impact on public perception showed that it had a positive influence on perceptions of zoo research, scientists, welfare, and the importance of choice for animals. During this research project, a new group of chimpanzees arrived in Edinburgh as part of the international breeding programme for western chimpanzees (Pan troglodytes verus). As the zoo’s focus switched to helping the two chimpanzee groups merge into one, we took the opportunity to apply psychological research to this context, namely the use of video as a research tool and the recognition of the importance of individual differences in response to challenge. The project maintained the cognition and welfare focus by using video introductions (allowing the chimpanzees to watch video footage of the individuals they were about to meet and track the formation of other sub-groups). In addition, personality ratings and chimpanzee behaviour during the visual access period (an animal management technique used prior to physical introductions where the groups could see each other without physical contact) were collected to examine the efficacy of these measures in guiding introductions in order to reduce risk. Personality ratings and behaviours observed during the video introductions could predict the chimpanzees’ behaviour during the physical introductions, however, the visual access period had no predictive power. The welfare implications of the introduction process were also assessed and suggested that: the choice of location (i.e. options of where to be) was more important than the total amount of available space; having individuals removed from your group was more stressful than having individuals added; self-directed behaviour (SDB) performance was context-specific where rubbing significantly increased during periods of uncertainty that were not necessarily negatively valenced; regurgitation and reingestion (R/R) decreased over time; and both in-group members and those of high ranks spent more time grooming others. Overall our data indicate that the chimpanzees coped well with both cognitive challenges and social upheaval during introductions. Despite being regularly studied in captivity and in the wild, chimpanzees have a great deal more to teach us about their world. In order to provide the best welfare for the chimpanzees in our care, we need to understand how research and management practices affect their lives and how the public interpret what we do as researchers. By understanding these aspects of their world, we can better serve those in captivity and influence public opinion on the importance of conserving those in the wild.

Cette thèse s'inscrit dans le contexte de la biologie de l'invasion de la chrysomèle des racines du maïs, Diabrotica virgifera virgifera (Dvv), en Europe. Les introductions multiples de cette peste sur le vieux continent à partir des années 1990 et en provenance des États-Unis ont conduit à la formation de plusieurs foyers envahissants dont deux principaux, différenciés génétiquement et situés en Italie du Nord-Ouest (Italie NO) et en Europe Centrale et du Sud-Est (Europe CSE). Ces deux foyers sont entrés en contact en 2008, en Italie du Nord, dans la région de la Vénétie. L'objectif principal de ces trois années de recherche était de détecter, d'étudier et de documenter un cas précis d'hybridation au cours d'une invasion biologique. Dans un premier temps, j'ai montré que la zone de contact détectée en Vénétie résultait bien en une zone hybride. Pour cela plusieurs types d'analyses de génétique des populations ont été réalisés à l'aide de marqueurs micro-satellites. Dans un second temps, j'ai exploité cette zone hybride et utilisé la théorie des clines neutres et le déséquilibre de liaison pour estimer la dispersion (σ) de Dvv en Italie du Nord aux alentours de 20 km.génération−1/2. Enfin j'ai montré l'absence d'impact de l'hybridation au cours de l'invasion européenne de Dvv in natura, en mesurant sur des génotypes hybrides et parentaux, de nombreux traits phénotypiques positivement liés à la fitness des individus. Ainsi, une sélection ou contre sélection des hybrides est à exclure dans ce cas précis d'hybridation et la dynamique de l'invasion de cette peste en Europe ne devrait être affectée en aucune façon.

The aim of the thesis was to document patterns in breeding and migration in Swedish Canada geese Branta canadensis, to explain these against the genetic and historical background of the population, and to test predictions of hypotheses pertaining to parental investment. The Canada goose population in Sweden was founded by the introduction of a few individuals in the 1930's. DNA fingerprint similarity between geese breeding in Sweden was on average at the same level as between inbred close relatives in other wild bird species. The genetic variability of the population appeared to be considerably reduced in comparison to that of Canada geese breeding in North America. Dispersal and migration patterns were studied using plastic neck-bands that could be identified at long distance. Most Canada goose females nested at the lake where they grew up. Males were more prone to disperse than females, although most of them still returned to breed close to their area of origin. Geese from three breeding areas in Sweden had different winter distributions, although wintering areas overlapped considerably. Individual geese tended to return to the same wintering area as they had used in previous years. The females' investment in the egg clutch was related to the migration distance from spring foraging areas to the nesting area, suggesting an energetic cost of migration for egg production. Within breeding seasons, clutch size decreased with later initiation of nesting, but only in years with early breeding. A probable reason for this decrease was that body reserves available for egg production were larger in early layers. In years with late breeding, clutch size did not decrease, most likely because late-nesting females could supplement their body reserves by foraging on fresh vegetation. Nest defence intensity was studied by recording the behaviour of the female geese when a human approached the nest. The results largely confirmed predictions for nest defence intensity extracted from parental investment theory. / <p>Diss. (sammanfattning) Umeå : Umeå universitet, 1993, härtill 6 uppsatser</p> / digitalisering@umu

A presente pesquisa trata da descrição e da análise de estratégias retóricas que abrangem a distribuição e organização funcional e conteudística de segmentos textuais de introduções de dissertações de mestrado. Para o fim proposto, os textos de introduções foram extraídos de dissertações de mestrado do Institut für Deutsch als Fremdsprache/Transnationale Germanistik da LMU de Munique e da Área de Alemão da USP, Brasil, escritas nas línguas de cada país: alemão e português. O corpus é composto de 44 textos de introdução. Com base na perspectiva linguístico-contrastiva, as constatações da retórica contrastiva, juntamente com a análise de gênero de orientação sócio-retórica, formam os fundamentos teóricos desse trabalho. Com o intuito de determinar a distribuição e a organização dos segmentos textuais, foi empregado o modelo CARS de SWALES (1990, 2004), desenvolvido inicialmente para analisar a estrutura organizacional de introduções científicas do gênero artigo. A prioridade da presente pesquisa foi a de identificar e localizar as estratégias que o autor da dissertação de mestrado utiliza, para apresentar seu próprio trabalho (movimento 3 de Swales). Devido à grande variação da sequência de estratégias retóricas não foi possível determinar um modelo organizacional claro dos textos nas duas línguas. Contudo, a descrição dos dados tornou possível a constatação de estratégias principais e secundárias empregadas na apresentação dos próprios trabalhos. Incluem-se entre as estratégias principais: a) a denominação do estabelecimento de metas, b) indicações sobre o método de procedimento, assim como c) indicações sobre a estrutura textual. Adicionalmente, é importante para os autores dos textos em questão indicar o que o trabalho não é capaz de realizar, uma estratégia não existente no modelo de Swales e que, para as introduções das dissertações de mestrado consideradas, é essencial. Contextos diferentes da produção (como, por exemplo, posições com graus hierárquicos distintos) conduzem a uma valorização diferente nas metas comunicativas, fazendo com que, por exemplo, o movimento 3 tenha um papel mais importante nas introduções de dissertações do que em artigos científicos, nos quais a revelação de uma lacuna de pesquisa é muito importante. Além da identificação e da organização de estratégias retóricas, também foi considerada a sua realização linguística e gramatical no alemão e no português, assim como examinado o emprego dos pronomes pessoais que indicam as autorreferências. Assim, objetivou-se verificar em que papéis acadêmicos o autor aparece em seus textos. Os fundamentos teóricos empregados foram fornecidos por HYLAND (2002), STEINHOFF (2007) e SCHMIDT (2010). Como resultado é possível afirmar que a) os autores dos textos em português não seguem um mesmo modelo no que concerne ao emprego de pronomes pessoais, b) nos textos em alemão o autor quase não aparece, fazendo com que as referências de autor sem a presença do agente predominem, e c) nos textos em português e em alemão o autor aparece predominantemente na função de autor, isto é, quando, por exemplo, aparecem indicações sobre a organização textual. Os resultados deste trabalho têm como meta servir de subsídio para a produção de material didático que forneça aos futuros mestrandos recursos para a elaboração de textos de introdução nas duas línguas. / This study explores the description and analysis of rhetorical strategies utilized in the content-related distribution and organization of textual segments of master theses introductions. For this purpose, introduction texts were taken from masters dissertations of the Institut für Deutsch als Fremdsprache/Transnationale Germanistik of the LMU of Munich and of the German Department at Universidade de São Paulo, Brazil, each written in its respective national language: German and Portuguese. The corpus consists of 44 introductions. Due to the linguistic contrastive perspective, the findings of the contrastive rhetoric constitute the theoretical basis of this research, together with the genre analysis of socio-rhetoric orientation. In order to determine the distribution and disposal of the text segments, the CARS model by SWALES (1990, 2004) was employed. This model was initially developed to analyze the organizational structure of scientific introductions of research articles. The primary focus of this study is to identify and locate the strategies that each dissertation author uses to present its own work (Swales move 3). Due to a great variety of rhetoric sequences, it was not possible to determine a conclusive organizational structure of the texts in either language. However, a description of the data made it possible to determine primary and secondary strategies employed in the presentation of master theses. Primary strategies include: a) indication of goal setting, b) indications concerning the methodical procedure, as well as c) indications about the structure of the text. Furthermore, it is important for the authors to indicate what cannot be achieved, a strategy which is not considered by Swales in his model and which is essential for the analyzed introductions of masters dissertations. Different production contexts (as, for example, positions with different hierarchical degrees) lead to a different valuation of the communicative goals, having as a result that, for example, move three in master thesis introductions plays a more important role than in scientific articles, in which the indication of a research gap is of great importance. In addition to the identification and organization of rhetoric strategies, linguistic and grammatical use in German and Portuguese was also considered, as well as the use of personal pronouns that indicate references to the author depending on the agent. The intention was to verify in which academic rules the author appears in his texts. The theoretical fundamentals employed were based on HYLAND (2002), STEINHOFF (2007) and SCHMIDT (2010). As a result, it is possible to state that a) the authors of texts in Portuguese do not follow the same model concerning the use of personal pronouns, b) in the German text the authorial presence is frequently hidden behind passive forms c) in the Portuguese, as well as in the German texts, the author appears mainly in the rule of the agent, for example, when indications about the textual organization appear. The results of this work intend to serve as a basis for the production of didactic materials by providing instruments for future masters students to employ in the production of introduction texts in both languages.

A ferrugem asiática é a principal doença da cultura da soja. Uma das estratégias para contornar este problema é o uso da tolerância genética. Este trabalho visou avaliar a reação à ferrugem asiática de linhagens avançadas, F5:6 e F5:7, advindas de um dialelo parcial entre um grupo de genitores exóticos resistentes à ferrugem asiática e outro grupo de genitores adaptados e susceptíveis, por meio de estimativas de parâmetros genéticos em caracteres agronômicos, com ênfase na produtividade de grãos. Os experimentos foram conduzidos em dois manejos: o manejo 1 com fungicidas Opera & Nativo que controlam doenças de final de ciclo (DFC), incluindo-se a ferrugem; e o manejo 2 com o fungicida Derosal que controla as DFC, exceto a ferrugem. Em 2010/11, foram avaliadas 488 linhagens F5:6 para os caracteres produtividade de grãos (PG) e peso de cem sementes (PCS), este último representando o tamanho das sementes. Foram selecionadas 260 linhagens F5:7 mais tolerantes e estas foram avaliadas em 2011/12 para PG, altura de planta na maturidade (APM), número de dias para a maturidade (NDM), acamamento (AC) e valor agronômico (VA). Realizou-se o teste de agrupamento de médias de Scott-Knott para todos os caracteres em ambos os anos, assim como foi verificada para cada genótipo a significância do efeito ferrugem (EF ou diferença entre as médias ajustadas entre os manejos 2 e 1, através do teste t pareado). Estimou-se a capacidade média de combinação (CMC) para as médias de PG e EF_PG, além do ganho de seleção e a herdabilidade realizada. As interações genótipo x manejo foram significativas para PG, PCS e NDM, indicando que a variabilidade genética oscilou entre os manejos, para estes caracteres. Os valores das correlações entre os EF foram baixos, embora parte deles tenha sido significativos. Estimativas de CMC para PG e EF_PG indicaram que os genitores que mais contribuíram para o aumento de PG e da tolerância foram BRS-232 como adaptado e Shiranuí como exótico, enquanto que os melhores cruzamentos foram Orba x BRS-232 e Shiranuí x Conquista. A seleção realizada não trouxe ganho para a PG, contudo aumentou a tolerância. Quatorze linhagens mostraram-se promissoras, visto terem apresentado PG superior a das testemunhas e tolerância à ferrugem. Assim, foi possível a seleção de linhagens produtivas e tolerantes à ferrugem nos cruzamentos dialélicos entre genitores adaptados e exóticos. / The soybean rust is the main disease in soybean crop. One strategy to overcome this problem is the use of genetic tolerance. This research aimed to evaluate soybean rust reaction in advanced lines (F5:6 and F5:7 generations), obtained in partial diallel crosses between one group of rust resistant exotic parents and another group of adapted susceptible parents of soybean, through genetic parameters estimated for agronomic traits, with emphasis in seed yield. The experiments were conducted in two types of managements: the management 1, with the fungicides Opera & Nativo which control late season leaf diseases (DFC) including rust; and management 2, with Derosal fungicide that controls DFC except rust. In 2010/11, 488 F5:6 lines were evaluated for seed yield (PG) and one hundred seed weight (PCS), the last trait representing the seed size. The 260 most tolerant F5:7 lines were selected and evaluated in 2011/12 to PG, plant height at maturity (APM), number of days to maturity (NDM), lodging (AC) and agronomic value (VA). The clustering Scott-Knott test was performed for all traits in both agricultural years, and the significance of rust effect (EF = difference between adjusted means of managements 2 and 1, for each genotype) was verified through the paired t test. The average combining ability (CMC), selection gain and realized heritability were estimated for PG and EF_PG. The genotype x management interactions were significant for PG, PCS and NDM, showing that the genetic variability oscillated in the two managements. The correlation coefficients among EF mean values were low, although some of them were significant. CMC estimates for PG and EF_PG indicated that the parents who contributed most to the increase in PG and tolerance were BRS-232 as adapted and Shiranuí as exotic, while the best crosses were Orba x BRS-232 and Shiranuí x Conquista. The selection did not bring gain in seed yield, but increased the tolerance. Fourteen lines were promising, since they presented higher means of PG than the experimental checks and tolerance to rust. Thus, it was possible to select productive and tolerant lines from the diallel crosses between adapted and exotic parents.

A ferrugem asiática é a principal doença da cultura da soja. Uma das estratégias para contornar este problema é o uso da tolerância genética. Este trabalho visou avaliar a reação à ferrugem asiática de linhagens avançadas, F5:6 e F5:7, advindas de um dialelo parcial entre um grupo de genitores exóticos resistentes à ferrugem asiática e outro grupo de genitores adaptados e susceptíveis, por meio de estimativas de parâmetros genéticos em caracteres agronômicos, com ênfase na produtividade de grãos. Os experimentos foram conduzidos em dois manejos: o manejo 1 com fungicidas Opera & Nativo que controlam doenças de final de ciclo (DFC), incluindo-se a ferrugem; e o manejo 2 com o fungicida Derosal que controla as DFC, exceto a ferrugem. Em 2010/11, foram avaliadas 488 linhagens F5:6 para os caracteres produtividade de grãos (PG) e peso de cem sementes (PCS), este último representando o tamanho das sementes. Foram selecionadas 260 linhagens F5:7 mais tolerantes e estas foram avaliadas em 2011/12 para PG, altura de planta na maturidade (APM), número de dias para a maturidade (NDM), acamamento (AC) e valor agronômico (VA). Realizou-se o teste de agrupamento de médias de Scott-Knott para todos os caracteres em ambos os anos, assim como foi verificada para cada genótipo a significância do efeito ferrugem (EF ou diferença entre as médias ajustadas entre os manejos 2 e 1, através do teste t pareado). Estimou-se a capacidade média de combinação (CMC) para as médias de PG e EF_PG, além do ganho de seleção e a herdabilidade realizada. As interações genótipo x manejo foram significativas para PG, PCS e NDM, indicando que a variabilidade genética oscilou entre os manejos, para estes caracteres. Os valores das correlações entre os EF foram baixos, embora parte deles tenha sido significativos. Estimativas de CMC para PG e EF_PG indicaram que os genitores que mais contribuíram para o aumento de PG e da tolerância foram BRS-232 como adaptado e Shiranuí como exótico, enquanto que os melhores cruzamentos foram Orba x BRS-232 e Shiranuí x Conquista. A seleção realizada não trouxe ganho para a PG, contudo aumentou a tolerância. Quatorze linhagens mostraram-se promissoras, visto terem apresentado PG superior a das testemunhas e tolerância à ferrugem. Assim, foi possível a seleção de linhagens produtivas e tolerantes à ferrugem nos cruzamentos dialélicos entre genitores adaptados e exóticos. / The soybean rust is the main disease in soybean crop. One strategy to overcome this problem is the use of genetic tolerance. This research aimed to evaluate soybean rust reaction in advanced lines (F5:6 and F5:7 generations), obtained in partial diallel crosses between one group of rust resistant exotic parents and another group of adapted susceptible parents of soybean, through genetic parameters estimated for agronomic traits, with emphasis in seed yield. The experiments were conducted in two types of managements: the management 1, with the fungicides Opera & Nativo which control late season leaf diseases (DFC) including rust; and management 2, with Derosal fungicide that controls DFC except rust. In 2010/11, 488 F5:6 lines were evaluated for seed yield (PG) and one hundred seed weight (PCS), the last trait representing the seed size. The 260 most tolerant F5:7 lines were selected and evaluated in 2011/12 to PG, plant height at maturity (APM), number of days to maturity (NDM), lodging (AC) and agronomic value (VA). The clustering Scott-Knott test was performed for all traits in both agricultural years, and the significance of rust effect (EF = difference between adjusted means of managements 2 and 1, for each genotype) was verified through the paired t test. The average combining ability (CMC), selection gain and realized heritability were estimated for PG and EF_PG. The genotype x management interactions were significant for PG, PCS and NDM, showing that the genetic variability oscillated in the two managements. The correlation coefficients among EF mean values were low, although some of them were significant. CMC estimates for PG and EF_PG indicated that the parents who contributed most to the increase in PG and tolerance were BRS-232 as adapted and Shiranuí as exotic, while the best crosses were Orba x BRS-232 and Shiranuí x Conquista. The selection did not bring gain in seed yield, but increased the tolerance. Fourteen lines were promising, since they presented higher means of PG than the experimental checks and tolerance to rust. Thus, it was possible to select productive and tolerant lines from the diallel crosses between adapted and exotic parents.