Adjuvantes e assistência de ar em pulverizador de barras sobre a deposição da calda e controle de Phakopsora pachyrhizi (Sydow & Sydow)

Com o intuito de melhorar a cobertura da pulverização e diminuir as perdas na produtividade da cultura da soja, o estudo objetivou avaliar o efeito da adição de adjuvantes à calda combinado ou não ao uso da assistência de ar sobre a deposição da pulverização, controle de Phakopsora pachyrhizi H. Sydow & P. Sydow, perdas de produção (peso de 1000 grãos) e produtividade da cultura (kg ha-1). Dois experimentos a campo foram conduzidos na cultura da soja, variedade Conquista, safra agrícola 2008/09. Um deles no delineamento em blocos ao acaso com três doses de adjuvantes associados a um marcador cúprico combinadas a dois níveis de ar na barra de pulverização (0 e 29 km h-1), totalizando 6 tratamentos e 4 repetições. Outro experimento foi instalado no mesmo local do anterior. O delineamento experimental utilizado foi o de blocos ao acaso com 7 tratamentos: fungicida e dois adjuvantes associados ao fungicida, combinados a dois níveis de ar na barra de pulverização (0 e 29 km h-1), mais testemunha, e 4 repetições. Após a pulverização do fungicida piraclostrobina + epoxiconazole com diferentes tecnologias, procedeu-se a avaliação da severidade da doença através da estimativa da área abaixo da curva de progresso da doença (AACPD) e da produtividade da cultura da soja. A assistência de ar na velocidade máxima gerada pelo ventilador (29 km h-1), combinada ao fungicida piraclostrobina + epoxiconazole mais o adjuvante organosiliconado Silwet L-77 contribuiu para melhor controle da ferrugem asiática, proporcionando incremento na produtividade e no peso de 1000 grãos.

Uniformidade de deposição de gotas de pulverização em plantas de amendoim e Brachiaria plantaginea

Objetivou-se neste trabalho avaliar a uniformidade da deposição de gotas de pulverização em plantas de amendoim e de Brachiaria plantaginea localizadas nas linhas e entrelinhas de semeadura da cultura. O experimento de campo foi realizado com a cultura de amendoim, cultivar IAC Tatu-ST. As pulverizações foram feitas com a cultura nos estádios vegetativo (V1) e reprodutivo (R2). Foi utilizado, como marcador das gotas depositadas, o corante Azul Brilhante (FD&C-1) na concentração de 500 ppm. Os tratamentos foram constituídos por sete pontas de pulverização: XR 110015 VS (150 L ha-1), XR 11002 VS (200 L ha-1), TX-VK 6 (150 L ha-1), TX-VK 8 (200 L ha-1), AI 110015 VS (150 L ha-1), AI11002 VS (200 L ha-1) e TJ60 11002 VS (150 e 200 L ha-1). Utilizou-se o delineamento experimental em blocos ao acaso, com quatro repetições. Para as análises qualitativas, os dados obtidos foram ajustados à curva de regressão pelo modelo de Gompertz. As pontas XR 11002 VS (200 L ha-1) e TX-VK 6 (150 L ha-1) proporcionaram as maiores uniformidades de distribuição da pulverização nas plantas de amendoim cultivar IAC Tatu ST nos estádios vegetativo (V1) e reprodutivo (R2), respectivamente. A uniformidade de deposição nas plantas de B. plantaginea teve grande variação nos depósitos unitários sobre as plantas localizadas na linha e entrelinha da cultura. Apenas a ponta XR 11002 VS (200 L ha¹) causa falhas de deposição em ambos os estádios de desenvolvimento da B. plantaginea localizada na linha da cultura. Quanto às plantas localizadas na entrelinha, a maior eficiência das pontas de pulverização ocorre no estádio de 3-5 perfilhos.

Morphomolecular characterization of Pleurotus ostreatus (Jacq. Fr.) kummer strains in relation to luminosity and temperature of frutification

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Utilização de análise de segregantes agrupados na identificação de marcadores ligados a genes que controlam a resistência à ferrugem (Puccinia psidii Winter) em Eucalyptus sp.

Devido a grande importância da cultura de Eucalyptus no Brasil, empresas do setor florestal têm buscado através de programas de melhoramento genético, reduzir as perdas de produção e atender a demanda do mercado de papel e celulose. Um exemplo, é a busca por genes de resistência a doenças, principalmente a ferrugem causada por Puccinia psidii Winter, que resulta em redução da produtividade em plantas altamente suscetíveis. No presente trabalho, mudas de Eucalyptus pertencentes a uma geração F1, provenientes do cruzamento controlado entre parentais híbridos E. grandis X E. urophylla, sendo eles resistente e suscetível, foram inoculadas com Puccinia psidii em casa de vegetação e acompanhadas até o aparecimento dos sintomas da ferrugem. Foram classificadas, em dois grupos: resistentes (ausência de sintomas) e suscetíveis (presença de sintomas e esporulação). As amostras de DNA foram comparadas com o uso de marcadores moleculares associado ao método de BSA (Bulked Segregant Analysis). O polimorfismo entre os grupos foi geneticamente relacionado ao loco que determina a característica de resistência ou sucetibilidade. Dentre os 720 primers testados, 19 foram polimórficos, porém, apenas o marcador AK 01 manteve-se presente, quando testado em todos os indivíduos da população, mostrando-se a uma distância genética estimada de 20 cM em repulsão ao gene de resistência.

Murcha por Ceratocystis em eucalipto: avaliação de resistência e análise epidemiológica

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Referência ao discurso do outro: uma análise de problemas de relações de sentido entre discurso citado direto e indireto citante no gênero monográfico

In this study we investigate the reference to other s discourse done it through the resource of direct cited discourse at background section in monographic texts produced by university students at the last phase of final work in their graduate Letras course. This work is guided in cited/related discourse studies in Bakhtin (2004), Authier-Revuz (1990, 1998, 2004), Maingueneau (1996, 2002), Charaudeau and Maingueneau (2004); in genre approaches developed by Bakhtin (2000); Maingueneau (1996, 2002); socio-discursive interaction (BRONCKART, 1999, 2003; SCHNEUWLY, 2004; DOLZ e SCHNEUWLY, 2004) and Bazerman (2005); and also in presuppositions of Textual Linguistics presented by Charrolles (1988), Van Dijk (1997), Beaugrande and Dressier (1981), Koch and Travaglia (1993, 1995), Koch (2002, 2004) and Val (2000, 2004). We have established as aims to analyze and interpret meaning relations problems in how to articulate direct cited discourse with citing discourse and at the same time explain semantic implications that comes from that articulation that compromise text meaning, at background section in that monographic genre. The analysis, by qualitative and quantitative basis in eleven monographic works that form our corpus, gave us the opportunity to achieve and see that meaning relationships in the articulation of direct cited discourse with citing discourse show problems that may be categorized into three different groups: problems related to meaning relationships with citing discourse that comes before it, problems of meaning relationships with citing discourse that comes after it, and problems with of meaning relationships with citing discourse that come before it and at the same time with citing discourse that comes after it (i.e. in relation to both). These analysis also allow us assert that, these problems, just because they occur frequently, they affect the micro level text coherence, and they also compromise the text global meaning. The results show that students at Letras Course, even in the ending process of their course do not show the real domain in relation to some ways of direct cited discourse organization and working, and also how the ideas articulation work in the construction of relations between direct cited discourse and the citing discourse that can turn those students able to produce a text that enhance acceptable patterns

Slogans políticos em campanhas eleitorais no Rio Grande do Norte: a mídia na disputa ideológica.

To the observe the periods of electoral campaigns, we can realize sharply the abundance of political propaganda that announces the candidates, their campaign record, their proposed and everything that can carry them to the victory in the urns. The propaganda is today an essential tool in the votes dispute, in consequence of this, there is, in Brazil, the increasing participation of the Politics Parties in seminars of electoral marketing. They are varied strategies of the media used in the divulging of the candidacies, among them the slogan. Instigated by the explicit relation media/political, this work intends to investigate the ideologies (values) announced by the slogans of political propaganda that circulated in electoral periods. Thus, we base on the theory of the Circle of Bakhtin, who considers the statement as unit of the verbal communication, and that conceives the language as phenomenon dialogical, and, too, in the conceptions of alien words, social voices and dialogical relations formulated by the referred theory. We use, for better to comprehend, the slogan as strategy mediatic, of the classical study done by Olivier Reboul concerning the slogan; and, like starting point of a conception about ideology, studied John Thompson to comprehends the ideological phenomenon. Our corpus it constitutes of 14 political slogans announced in the campaigns for mayor of the cities in Natal and Mossoró, both located in Rio Grande do Norte s state, Brazil, in 1996, 2000 and 2004. For the analysis of these slogans, we consider the social-historical context in which were announced, being contemplated the linguistic and discursive aspect, according to the following methodological order: the identification of alien words (interdiscours); the social voices and the kinds dialogical relations established; and, finally, the ideology announced by the statement. This way, we can arrive to the conclusion that in the electoral context occurs a true ideologies war , in other words, in the political game of an electoral campaign, the slogans announces different values, which vary in several factors function, for example, the historicity, the subject that enunciates, the discursive positionings.

O gênero crônica na sala de aula do ensino médio

In this work we present the results of a research that aims to study the chronicle gender produced in a class of native language. The texts were written by students of a high-school class, under the orientation of the teacher who conducted a didactic sequence in order to explore this gender. In our analysis we observed aspect such as the structure of the general structure of the texts, types of speech and linguistic sequences, some mechanisms of textualization and the characteristics of the gender. In order to attain that, we adopted the theoretical presuppositions of Textual Linguistics and of the Socio-discursive Interactionism, grounding the study of texts and gender in Bronckart (2003; 2006) and Koch (2002; 2004). As a background of the Chronicle Gender we used the studies of Coutinho (1987); Moisés (2003); Sá (2005); Bender; Laurito (1993); Melo (1994); Cândido et al. (1992) among others. The corpus, made up of 15 texts, showed that the narrative is the most used linguistic sequence in the producing of the texts, the discursive world prevailing in the narrative and some instances of the world of exposing. As for the gender characteristics, the daily life was used in order to amuse the reader and make him to reflect upon the daily life. Humor, irony, social criticism and colloquial language were also observed in the texts produced by the students. Although some texts presented the characteristics of the gender, explored in the classroom, some were typically school narratives. That make us believe that a work with textual production under the approach of a text gender is viable, but it is not consolidated yet in many schools as the main object of the central teaching of the Portuguese language. This make us defend a better systematization of the teaching contents having as the main point the reading practice and text production in order to contribute for the growing of the students´ discursive potentialities and, therefore, their effective participation in the language social practices

Inscrição discursiva da subjetividade homoafetiva na G Magazine

This thesis, which is entitled Registration discourse of subjectivity homo affective in G Magazine, is proposed to describe / interpret modes of subjectivity that is set in the discourse of homo affective confessions, recorded in letters addressed to G Magazine. The study is based on the theories of Discourse Analysis French, with a focus in the discussions Foucaultian remarkably discursive practices that produce meanings about the processes of subjectivity and sexuality. Methodologically, the research is of appreciative/qualitative character and falls in the field of Applied Linguistics (LA), at a press that the historical and cultural reality of the subject, establishing dialogues with many other fields of knowledge, which deal of the subject matter of speech and sexuality. Data analysis indicates that the magazine G Magazine works as a discursive space, where individuals on condition that homosexual, take it as the place that it gives security to talk to you, it's worrying, because the nature of the journal it suggests a belonging to the same discursive formation - that of homo affective . Thus, some of which are felt constructed for the investigation of the letters selected for this study showed that the forms of subjectivity of such homo affective are emerging in the game of the bans, the other is that as a subject of sexuality and to materialize in operation the confession. These homo affective, in a gesture of incessant registration of alternatives to be subject to its own truth of their sexuality, to seek his party in the case, the psychologist, a referral, a "light" that can guide them in an attempt to get rid of the forms of to subject. Installs itself in this way, as a point of resistance: the attempt to dissociate itself be of some states of submission, opening itself to other ways of being subject

O gênero blog: ação social e multimodalidade.

Studies about discursive genres peak at a necessity to understand how these genres work in a society that is more and more submissive to the technology of informatics such as ours. In acknowledging that the virtual context of the Internet provides the manifestation and development of new genres of the discourse, we perceived that the online journal, or blog, as commonly known, is responsible for a variety of linguistic phenomena that would normally take severaI years to consolidate. Since its appearance in 1997 blogs rush as a virtual version of the personal diary and in a short time due to communicative demands suffers several changes, making new categories of blog genres emerge. Facing such phenomena, this work intends at first to characterize blogs as a genre that exercises a social action, evidencing its formal, structural and pragmatic characteristics from the notion of recurrence and rhetoric in a discursive-semiotic perspective. The methodological postulates adopted by this research are considered of qualitative basis in the sense that they are not restricted to looking at the discursive events as a product, but mainly they take into consideration a group of situational, cultural and ideologic factors that are present in the constitution of genre.

Propaganda e discurso ideológico: um estudo dos slogans das campanhas de incentivo à leitura

Considérant que le Brésil est un pays considéré comme «non- lecteurs», nous avons essayé de trouver des solutions pour inverser cette situation d'exclusion sociale à travers des campagnes et des projets. Le slogan était le moyen de la propagande a proposé à cet effet. En étant un peu éclairante, il a été considéré qu'ils étaient peut-être inséré dans un contexte idéologique, en passant, qui faisait alors partie de l'objet d'études en question et, en conséquence, l'objectif était d'étudier comment, dans niveau discursif, les relations sociales de l'idéologie et du pouvoir dans ces dessins slogans verbaux et des campagnes publicitaires pour encourager la lecture. Nous avons utilisé comme instrument de collecte de données en 2007 slogans projets (sept) et l'intensification des campagnes de publicité dans les années 1995 à 2006, peu après la création de la descendance en 1992, où son fonctionnement a été analysé et discours idéologique, en cherchant à identifier les états effets de sens proposé. Nous avons utilisé pour soutenir la perspective de recherche d'analyse du discours de l'école française, affiliée à Pêcheux. Afin de sens les effets sens des tests a été fait une semi-ouverte aux enseignants qui traitent directement avec l'enseignement de la lecture de l'Institut de l'Enseignement Supérieur du Président-Kennedy, situé à Natal / RN. On été appliqués 100 questionnaires, parmi lesquels 60 d‟entre eux utilisés pour l‟analyse. La recherche a démontré par l'analyse, que la façon d'encourager les gens à lire se déplace à travers le modèle principal de la compréhension de la lecture à laquelle les slogans ont été utilisés, en les intégrant dans un discours dominant, qui ne contribue pas de manière significative à l'augmentation le nombre de lecteurs dans le pays. Grâce à l'analyse des slogans et la réception des sujets de recherche, nous nous rendons compte de la diversité et l'idéologie sont présents en elles, révélant tout le temps, la compréhension de la lecture comme une surface pratique, ne mettre en lumière certaines de ses fonctions Importantes au sein d‟um contexte éducatif plus large

A relação gramatical objeto direto : implicações para o ensino de língua materna

This paper attempts to investigate the discourse manifestations of the grammatical relation direct object with respect to the syntactic, semantic and pragmatic properties that underlie this element. The research adopts theoretical orientation of the functionalism from North American and Brazilian schools inspired in Givón (1995, 2001), Hopper and Thompson (1980), Chafe (1979), Furtado da Cunha, Oliveira, Martelotta (2003) inter alia. From functionalism, the research uses principles of iconicity, markedness and informativity and it analize categories of transitivity, grounding and animacy. This research is anchored in prototype model (TAYLOR 1995); construction grammar model (GOLDBERG 1996, 2002). Both theoretical orientations share the view that language is a malleable living organism subject to socio-cultural context. Grammar is then the result of created, maintained, and systematized linguistic patterns developed from and used for language use. According to a functional linguistics and cognitivist linguistics verbs are stored in the speakers lexicon in syntactic-semantic frames which are more frequent. These frames carry information concerning obligatory and optional arguments and the semantic roles these arguments take in the clause. The analysis focuses on the semantic type of the verbs and its relationship with the argument encoded as a direct object observing the aspectual nature of verbs. Direct objects are classified according to their morphology (lexical or pronominal noun phrase), semantic role, informational content and animacy. This study discusses pedagogical implications with relation to how the grammatical concepts touched on this paper are treated in school textbooks. The empirical data come from Corpus Discurso & Gramática: a língua falada e escrita na cidade do Natal (FURTADO DA CUNHA, 1998). This corpus is composed of texts that contain spoken and written modalities. These modalities are in turn organized according to different types: personal narratives, retold narrative, description of preferred place, procedural place, procedural description and report on argumentation. The sample data totals 40 texts produced by four language consultants of the last graduation date. The paper shows that the same syntactic structures (formed through Subject-Verb-Object) correspond to different semantic-pragmatic structures in relation to specific communicative purposes even verb is an event, process or state. The argument structure are not aleatory but are related to experience; that is the way humans conceptualize the world and talk about it

O trágico em lavoura arcaica

El escritor de São Paulo Raduan Nassar, lanza en 1975, su primera novela intitulado Lavoura arcaica. En su narrativa de estreno, el escritor nos trae la historia de un adolescente, André, que intenta destruir la plantación de su padre, Iohána. A través de sus sermones, el patriarca predicaba la moderación, la disciplina y la obediencia a las leyes impuestas por él, construyendo así, un mundo de ilusiones, donde el amor era una máscara para la hipocresía. En esta tensa relación, padre e hijo, representaciones místicas de Apolo y Dionisio, emprenden una contienda discursiva sobre la negación y la afirmación de la existencia. De ese modo, considerando la relación de lucha e integridad entre el impulso apolíneo y dionisiaco existentes en el romanticismo nassariano, la propuesta de este trabajo es presentar una lectura de lo trágico en Lavoura arcaica a partir de la perspectiva nietzscheana sobre el género trágico. Para eso, recorrimos al concepto desarrollado por Nietzsche en su obra, desde su primer libro O nascimento da tragédia (2007a), A visão dionisíaca do mundo (2005 a) y Ecce homo (2008 b).

O discurso de outrem em retextualizações

This work investigates features that speakers use to introduce different voices during retextualization of a literary work. It presents events revealing different resources used, characterizing the discursive heterogeneity, recognized through various brands such as quotation marks, italics, etc. The material analyzed, ie, the corpus of this research, consists of 65 essays from the reading of a literary work - Jealous of Card, Moacyr Scliar - produced by students of the 8th year of high school while in the classroom. The data revealed that the resource most used by students was the indirect discourse, although there also occurred the use of other resources such as free indirect discourse and modalizations in fewer redactions. Notably, the autonym connotation was noted through the use of quotation marks, and the use of parentheses. The recurrence of the parentheses seem to be justified by the need to make clearer sentences that could raise questions to the reader, since the protocol request retextualization established a thirty lines of text, which would certainly limit the possibilities of expansion of the text

Autoria no gênero resenha acadêmica

This work researches about the authorship marks in academic reviews of graduating students, besides the author discursive points of view. We detect the voices presented in the text, that is, the expressions of the discourse from the I and from the others, trying to explicitate the forms of the author review insertion. It is oriented by the conception that the author is the subject of his/her discourse, creating a position in relation to the discourse of the other(s) with which he/she maintains a dialogue. Our corpus is constituted of ten (10) academic reviews, produced by students from the Course of Letras, from Universidade do Estado do Rio Grande do Norte UERN, do Campus Avançado Prof.ª Maria Elisa de Albuquerque Maia CAMEAM. The data signalize to the perception that the subject constitutes author, when he/she gives voice to the other; showing his/her point of view; pointing to the discourse of the other; and/or getting far from the text. That way, it is observed that the genre academic review can be considered as text that reconfigures the original text, that is, as a text that comments, criticizes, confirms the text that is object of its analyses. The theoretical background that influences the research comes from the dialogical language conception, from discursive genres and from Volochinov/Bakhtin (1997, 2003) authorship. To the discussion and the analyses of the discursive genre academic review , it is mentioned the MOTTA-ROTH and MEURER (2002); POSSENTI (2001, 2002) conceptions.