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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
81

Aplica??o de t?cnicas independentes de cultivo na detec??o de bact?rias de import?ncia agropecu?ria / Application of cultivation independent techniques in the detection of agricultural importance bacteria

CARVALHO, Bruno Oliveira de 17 March 2015 (has links)
Submitted by Jorge Silva (jorgelmsilva@ufrrj.br) on 2018-05-18T18:09:32Z No. of bitstreams: 1 2015 - Bruno Oliveira de Carvalho.pdf: 1725115 bytes, checksum: 78e6b6f127705b066a8a0f75bbb08e88 (MD5) / Made available in DSpace on 2018-05-18T18:09:32Z (GMT). No. of bitstreams: 1 2015 - Bruno Oliveira de Carvalho.pdf: 1725115 bytes, checksum: 78e6b6f127705b066a8a0f75bbb08e88 (MD5) Previous issue date: 2015-03-17 / CAPES / The knowledge of bacterial genetic information has enable advances in many areas allowing detecting microorganisms and evaluating the production of virulence factors and resistance in certain populations. This knowledge allows the detection of microorganisms, as well as the evaluation of virulence and resistance factors production in certain populations. More recently, molecular diagnosis based on the detection of specific fragments from these agents has been implemented in no viable bacterial cultivation environments or hampered by biotic or abiotic conditions. Besides specific agent detection, bacterial diversity analysis might be an important criterion, such as assessing soil quality. Cultivation has been the most common way for evaluating bacterial diversity. However, most of soil bacteria are not cultivable; therefore, the employment of molecular tools has been increasingly used on this sort of analysis. This survey aimed standardizing the use of cultivation independent techniques for granting three agriculture sectors demands. The first chapter standardized the employment of DGGE technique for analyzing milk bacterial diversity from mastitis and healthy teats belonging to the same animal. Results pointed to differences on bacterial profile from both groups. The second chapter evaluated the impact of the employment of drill cuttings with castor beans and cramble pies association as agricultural fertilizers by DGGE analysis. The application of this technique was efficient for evaluating treatments, as well as, confirming the treatments contribution for increasing bacterial diversity in soil samples. The third chapter compared the cultivation technique sensitivity for American Foul Brood (AFB) diagnosis, a bee disease caused by Paenibacillus larvae, to cultivation independent technique by PCR. This survey demonstrated that sensitivity of the technique was greater than that one by P. larvae cultivation technique. Thus, the present survey concluded that cultivation independent techniques were useful for granting agriculture sectors demands. / O conhecimento das informa??es gen?ticas bacterianas tem permitido avan?os em diversas ?reas do conhecimento. Esse conhecimento permite detectar microrganismos, bem como avaliar a produ??o de fatores de virul?ncia e resist?ncia em determinadas popula??es. Mais recentemente, o diagn?stico molecular pela detec??o de fragmentos de DNA espec?ficos desses agentes vem sendo implementado em situa??es onde o cultivo bacteriano n?o ? vi?vel ou ? dificultado por condi??es bi?ticas ou abi?ticas. Al?m da detec??o de agentes espec?ficos, o conhecimento da diversidade bacteriana presente em alguns ambientes pode ser um importante crit?rio, como, por exemplo, para avaliar a qualidade do solo. A forma mais comum de avaliar a diversidade bacteriana se d? atrav?s do cultivo. Por?m, a maior parte das popula??es bacterianas presentes no solo n?o s?o cultiv?veis, com isso, a utiliza??o de ferramentas moleculares s?o cada vez mais utilizadas nesse tipo de an?lise. O presente estudo teve como objetivo padronizar a utiliza??o de t?cnicas independentes de cultivo para atender demandas de tr?s setores da agricultura. O primeiro cap?tulo padronizou a utiliza??o da t?cnica de DGGE (Eletroforese em Gel de Gradiente Desnaturante) para an?lise da diversidade bacteriana do leite de tetos mast?ticos e sadios de um mesmo animal. Os resultados apontaram para diferen?as no perfil bacteriano dos dois grupos analisados. O segundo cap?tulo avaliou o impacto sobre a microbiota bacteriana em solos tratados com associa??es de cascalho de perfura??o e tortas de mamona e crambe como adubos agr?colas atrav?s da an?lise de DGGE. A aplica??o da t?cnica de DGGE foi eficiente na avalia??o e confirmou que os tratamentos contribu?ram para o aumento da diversidade bacteriana nas amostras de solos estudadas. O terceiro experimento comparou a sensibilidade da t?cnica de cultivo, oficial para diagn?stico da Cria P?trida Americana (CPA), uma doen?a ap?cola causada por Paenibacillus larvae, com t?cnica de independente de cultivo por PCR do material extra?do direto do mel. Este estudo constatou que a sensibilidade da t?cnica proposta foi superior ? obtida pela t?cnica de cultivo de P. larvae. Com isso, conclui-se que as t?cnicas independentes de cultivo foram ?teis no atendimento das demandas das quest?es dos setores agr?colas contemplados no estudo.
82

Lei de imigra??o no Brasil e processos de anistia: o olhar do imigrante boliviano / Immigration law in Brazil and amnesty cases: the look of the Bolivian immigrant

Mesquita, Jacqueline Lobo de 04 April 2016 (has links)
Submitted by Celso Magalhaes (celsomagalhaes@ufrrj.br) on 2018-07-25T14:02:05Z No. of bitstreams: 1 2016 - Jacqueline Lobo de Mesquita.pdf: 2136209 bytes, checksum: a141582bdc2ad3ec8890821c0389a07a (MD5) / Made available in DSpace on 2018-07-25T14:02:08Z (GMT). No. of bitstreams: 1 2016 - Jacqueline Lobo de Mesquita.pdf: 2136209 bytes, checksum: a141582bdc2ad3ec8890821c0389a07a (MD5) Previous issue date: 2016-04-04 / Funda??o Carlos Chagas Filho de Amparo ? Pesquisa do Estado do RJ - FAPERJ / This work is the result of a survey conducted in S?o Paulo with Bolivian immigrants, as well as two non-governmental institutions on what these were, and if they had some knowledge of the immigration laws in Brazil.The data collected from the survey allowed the perception of the configuration of three types of subjects that conform as knowledge groups. The first has knowledge due to their day to day in the capital, they are mostly people who are already more than ten years in the city and speak Portuguese well. The second type has won certain degree of knowledge because the NGOs, and the third type, does not have any knowledge in the latter there is an intersection between immigrants little or nothing speak Portuguese, with speakers immigrant Portuguese, but they do not need to know the laws because they have sufficient income to pay for lawyers and agents when they need it, while others working in sewing workshops, have no means to pay for the provision of the law knowledgeable services. In the first type, usually immigrants speak more about the fact that the law be retrograde, coined to criminalize the immigrant, the second type speaks more about the needs that revolve around work and how the law should be amended to facilitate for example that students could have the right to work, the third type is silent, except I have purchasing power for these, not really matter what kind of change occurs in this area. The NGOs in turn proved to be true schools with quite specific philosophies, but both agree on the need to change the law, the fees charged reductions, as well as the time spent for immigrants able documented in Brazil. This research was mainly carried out semi-structured questionnaires, field notes, and bibliographic contribution.We believe this research appears necessary because once the Migration Policy is at a time of transition is important to listen to those who go through their daily reality has to say, besides contributing to bibliographic production on the subject / Este trabalho ? resultado de uma pesquisa realizada na cidade de S?o Paulo com imigrantes bolivianos, bem como com duas institui??es n?o governamentais sobre o que estes achavam, e se ? que tinham algum conhecimento sobre a legisla??o migrat?ria no Brasil. Os dados coletados na pesquisa possibilitaram a percep??o da configura??o de tr?s tipos de sujeitos que se conformam enquanto grupos de conhecimento. O primeiro tem conhecimento devido ao seu dia a dia na capital, s?o em sua maioria pessoas que j? est?o a mais de dez anos na cidade e falam bem portugu?s. O segundo tipo conquistou certo grau de conhecimento devido as Ongs, e o terceiro tipo, n?o possui conhecimento algum, neste ?ltimo existe uma intersec??o entre imigrantes que pouco, ou nada falam o portugu?s, com imigrantes falantes de portugu?s, mas que n?o necessitam conhecer as leis, pois possuem poder aquisitivo suficiente para pagar advogados e despachantes quando precisarem, ao passo que os outros trabalhando em oficinas de costura, n?o possuem meios de pagar pela presta??o de servi?os de conhecedores da lei.No primeiro tipo, normalmente os imigrantes falam mais sobre o fato da lei ser retrograda, cunhada para criminalizar o imigrante, o segundo tipo fala mais sobre as necessidades que giram em torno do trabalho e em como a lei deveria ser alterada para facilitar por exemplo que estudantes pudessem ter o direito de trabalhar, o terceiro tipo nada fala, exceto os eu possuem poder aquisitivo, para estes, n?o importa de fato que tipo de altera??o ocorre neste ?mbito. As Ongs por sua vez revelaram ser verdadeiras escolas, com filosofias bastante especificas, entretanto ambas concordam sobre a necessidade de mudan?a da lei, das redu??es de taxas cobradas, bem como do tempo despendido para que os imigrantes consigam documentar-se no Brasil. Esta pesquisa, foi principalmente realizada com question?rios semi-estruturados, caderno de campo, e aporte bibliogr?fico.Acreditamos esta pesquisa se mostra necess?ria pois uma vez que a Pol?tica Migrat?ria se encontra em um momento de transi??o ? importante ouvir o que aqueles que passam por sua realidade diariamente tem a dizer, al?m de contribuir para produ??o bibliogr?fica sobre o assunto
83

Irriga??o autom?tica acionada por sensor de press?o de vapor aplicada na produ??o de mudas de alface / Automatic irrigation activated by pressure sensor of vapor applied in the production of lettuce seedlings

Bezerra, Ana Carolina Mendes 16 February 2017 (has links)
Submitted by Celso Magalhaes (celsomagalhaes@ufrrj.br) on 2018-08-02T15:53:51Z No. of bitstreams: 1 2017 - Ana Carolina Mendes Bezerra.pdf: 1946898 bytes, checksum: 5eac08b2a62141f12ea8b97452156ae3 (MD5) / Made available in DSpace on 2018-08-02T15:53:54Z (GMT). No. of bitstreams: 1 2017 - Ana Carolina Mendes Bezerra.pdf: 1946898 bytes, checksum: 5eac08b2a62141f12ea8b97452156ae3 (MD5) Previous issue date: 2017-02-16 / Irrigation acts as an important factor to reduce risks and increase productivity in agricultural crops. However, due to increasing water scarcity and the waste of water practiced by many farmers, there is great concern about the negative impacts of this technique on the productive sector, generating the need to establish a balance between agricultural productivity and the preservation of natural resources. In this scenario, studies related to water economics are inserted through more sustainable types of irrigation management. The objective of this study was use the Simplified Irrigation Controller sensor positioned in the atmosphere, to control the irrigation of lettuce seedlings based on the variation of water vapor pressure. The performance of the adaptation was evaluated by monitoring plant parameters, as well as, water use efficiency (WUE). The device was evaluated with the ceramic sensor positioned outside the substrate, in the atmosphere adjacent to the production trays, seeking to correlate the applied water with the vapor pressure deficit (VPD) observed at the experiment site. The seeds of the Regina cultivar were sown in polystyrene trays (200 cells) with substrate used in organic cultivation. A randomized block design was used in a factorial scheme where factor A were four adjustments of the SIC (3.5; 5, 6.5 and 8kPa) and factor B were the two evaluation periods (from July 8 to August 8 and September 16 to October 16, both in 2016) with four replications, totaling 32 plots (experimental units). Parameters related to the growth and physiology of the crop was evaluated, such as: fresh mass, dry mass, water use efficiency, chlorophyll fluorescence parameters and stomatal conductance. The results were submitted to analysis of variance and in the presence of significant interaction a Sliced- analysis was carried out for each factor. Scott-Knott test was used to determine significance with the cut off at 5%.Biometric and physiological variables tested showed a decrease as the tested tensions were increased. The 3.5 kPa tension showed a higher potential for producing more vigorous seedlings, presenting WUE with an average value of 1.37 g L-1 and producing a seedling with approximately 32.4 mL of water in the second experimental period. The cultivation of lettuce seedlings is possible in both experimental periods. The results show the availability of the use of the SIC with atmospheric sensor and compatibility of the applied water volume applied with the observed VPD / A irriga??o atua como importante fator de redu??o de risco e incremento na produ??o de culturas agr?colas. Por?m, devido ? crescente escassez h?drica e ao desperd?cio de ?gua praticado por grande parte dos agricultores, h? uma grande preocupa??o em rela??o aos impactos negativos dessa t?cnica, gerando a necessidade de se estabelecer um equil?brio entre a produtividade agr?cola e a preserva??o dos recursos naturais. Nesse cen?rio se inserem estudos relacionados com efici?ncia h?drica por meio de tipos de manejo da irriga??o mais sustent?veis. O objetivo desse estudo foi utilizar o sensor do Acionador Simplificado de Irriga??o (ASI) na atmosfera para controlar a irriga??o de mudas de alface baseando-se na varia??o de press?o de vapor da ?gua. O desempenho da adapta??o foi avaliado por meio do monitoramento de par?metros na planta, bem como, da efici?ncia de uso da ?gua (EUA). O acionador foi avaliado com o sensor cer?mico posicionado fora do substrato, na atmosfera adjacente superior as bandejas de produ??o, buscando correlacionar a ?gua aplicada com o d?ficit de press?o de vapor observado nesse local. As sementes da cultivar Regina foram semeadas em bandejas de isopor (200 c?lulas) com substrato utilizado em cultivo org?nico. Foi utilizado o delineamento experimental de blocos casualizados, em esquema fatorial, onde o fator A foi quatro regulagens do acionador (3,5; 5; 6,5 e 8 kPa) e o fator B as duas ?pocas de avalia??o (de 8 de julho a 8 de agosto e 16 de setembro ? 16 de outubro, ambas no ano de 2016), com quatro repeti??es, totalizando 32 parcelas. Foram avaliados par?metros referentes ao crescimento e fisiologia da cultura, quais sejam: massa fresca, massa seca, par?metros de cin?tica da fluoresc?ncia da clorofila a e condut?ncia estom?tica, al?m da EUA. Os resultados foram submetidos ? an?lise de vari?ncia e na presen?a de intera??o significativa foi realizada nova an?lise de vari?ncia com desdobramento dos graus de liberdade. Teste de Scott-Knott foi usado para determina??o de signific?ncia a 5% de probabilidade. As vari?veis biom?tricas e fisiol?gicas avaliadas apresentaram decr?scimo conforme foram aumentadas as tens?es de acionamento. A tens?o 3,5 kPa mostrou maior potencial para produ??o de mudas mais vigorosas, apresentando EUA com valor m?dio de 1,37 g L-1 e produzindo uma muda com aproximadamente 32,4 mL de ?gua na segunda ?poca experimental. O cultivo de mudas de alface mostra-se poss?vel nas duas ?pocas experimentais. Os resultados mostram a viabilidade do uso do acionador com sensor atmosf?rico e compatibilidade do volume de ?gua aplicado com o d?ficit de press?o de vapor da atmosfera observado.
84

A Cultura e o Processamento da Mandioca como Elementos Estruturais na Forma??o do T?cnico em Agroind?stria. / The Culture and the Processing of Manioc as Structural Elements in the Training of Technical Agroind?stria.

Silva, Maria C?lia Lucia da 08 October 2010 (has links)
Submitted by Sandra Pereira (srpereira@ufrrj.br) on 2018-08-16T16:28:19Z No. of bitstreams: 1 2010 - Maria C?lia L?cio da Silva.pdf: 2808442 bytes, checksum: cb82e6fcb2d0499fc6d0ee7f1bcc87c6 (MD5) / Made available in DSpace on 2018-08-16T16:28:20Z (GMT). No. of bitstreams: 1 2010 - Maria C?lia L?cio da Silva.pdf: 2808442 bytes, checksum: cb82e6fcb2d0499fc6d0ee7f1bcc87c6 (MD5) Previous issue date: 2010-10-08 / In this study we used the chain of production of cassava as a pedagogical element to stimulate and sensitize students to the technical course of agroindustria of the Federal Institute of Pernambuco-campus Victoria, on the importance of culture in their training, considering its social, economic and for the social center of the Forest Region of the state of Pernambuco, where the cultivation and processing of cassava agro comprise the universe of family farming. This is also the source region of Vitoria-campus students. The study was conducted with the students of 2nd year course in Agroindustria in the space for the experience of the discipline of cassava technology that makes up the curriculum of the course is a survey of quantitative and qualitative. For quantitative evaluation, we used a structured questionnaire with with affirmative questions about the theoretical and practical knowledge of the units built with such subjects, and measured using a Likert scale. Analyses included the first two moments, considered test T1, at the beginning of the course and the second T2 tests at the end of the semester when you close the activities of the discipline. In qualitative evaluation, we chose to use the educational contest in which students split into groups to address the following issues: social, economic and cultural of cassava. For this activity, students had to organize themselves to do your research to make their experimental tasks. The results were presented at an event at the institution and evaluated according to the tasks proposed, theatrical presentation, seminar, poetry and music, with a thematic approach. We found that experienced in the course content was able to awaken the student to the problems experienced by small producers in the region which has in the cultivation and processing of cassava, since the same grounds engaged in seeking, through research with the units producers and farmers, so that their knowledge would be consolidated in practice, which was observed with the presentation of the tasks of the contest. In the assessment made by the student in their statements, they indicated that the method provided a better understanding of course content, and that the visit helped to strengthen their learning. Thus, the method used for this work has contributed to building a more critical awareness, facing the problem of a chain of cassava agro-industry which is of importance in the training of students in the technical course of agroindustria of IFcampus Vitoria. / Neste estudo foi utilizada a cadeia produtiva da mandioca como elemento pedag?gico para estimular e sensibilizar os alunos do curso t?cnico de agroind?stria, do campus Vitoria do Instituto Federal de Pernambuco, sobre a import?ncia desta cultura na sua forma??o t?cnica, considerandoseus aspectos s?cio, econ?mico e social para a Regi?o da Mata Centro do estado de Pernambuco, onde o cultivo e o processamento da mandioca comp?em o universo agroindustrial da agricultura familiar. Esta ? tamb?m a regi?o de origem dos alunos do campus Vitoria. A investiga??o foi realizada com os alunos do 2? ano do curso T?cnico em Agroind?stria no espa?o destinado a vivencia da disciplina Tecnologia da mandioca que comp?e a matriz curricular do curso sendo a uma pesquisa de natureza quantitativa e qualitativa. Para a avalia??o quantitativa, usouse um question?rio estruturado com afirmativas sobre os conhecimentos te?ricos e pr?ticos constru?do com as unidades da referida disciplinas, sendo mensurada atrav?s de uma escala de Likert. Esta avalia??o compreendeu dois momentos o primeiro, considerado teste T1, no inicio da disciplina e o segundo testes T2 no final do semestre quando se encerram as atividades da disciplina. Na avalia??o qualitativa, optou-se por usar a gincana pedag?gica, na qual os alunos de dividiram em grupos para atender as tem?ticas social, econ?mica e cultural da mandioca. Para esta atividade, os alunos tiveram que se organizar para fazer a sua pesquisa experimental para compor suas tarefas. Os resultados foram apresentados em um evento na Institui??o, e avaliados conforme o cumprimento das tarefas propostas de: apresenta??o teatral, semin?rio, poesia e m?sica, com a abordagem da tem?tica. Verificamos que o conte?do vivenciado na disciplina foi capaz de despertar o aluno para a problem?tica vivida pelos pequenos produtores da regi?o que tem no cultivo e no processamento da mandioca, uma vez que, os mesmo se empenharam em buscar fundamentos, atrav?s da investiga??o com as unidades produtores e os agricultores familiares, para que os seus conhecimentos fossem consolidados na pr?tica, o que foi observado com a apresenta??o das tarefas da gincana. Na avalia??o feita pelo aluno, em seus depoimentos, eles indicaram que o m?todo usado proporcionou uma melhor compreens?o dos conte?dos da disciplina, e que a visita colaborou para fortalecer a sua aprendizagem. Assim, o m?todo usado para a realiza??o deste trabalho, contribuiu com a constru??o de uma consci?ncia mais cr?tica, voltada para a problem?tica de uma cadeia agroind?stria da mandioca que ? de import?ncia na forma??o dos alunos do curo t?cnico em agroind?stria do IFPE ? campos Vitoria.
85

Avalia??o da aprendizagem no Curso T?cnico em Agroind?stria, no IFCE- Campus Iguatu, atrav?s do desenvolvimento de atividades em um projeto de pesquisa com umbu-caj? / Evaluation of learning in the course of Technical Agroind?stria, on IFCE Campus Iguatu, through the development of activities in a research project with umbu-caj?

Pereira, Maria N?bia Gomes de Lucena 08 October 2010 (has links)
Submitted by Sandra Pereira (srpereira@ufrrj.br) on 2018-08-20T13:21:14Z No. of bitstreams: 1 2010 - Maria Nubia Gomes de Lucena Pereira.pdf: 3051812 bytes, checksum: 81841ffaf806c12662c2ec81c36821cc (MD5) / Made available in DSpace on 2018-08-20T13:21:14Z (GMT). No. of bitstreams: 1 2010 - Maria Nubia Gomes de Lucena Pereira.pdf: 3051812 bytes, checksum: 81841ffaf806c12662c2ec81c36821cc (MD5) Previous issue date: 2010-10-08 / This work has analyzed the contribution of the development of activities of a research project applied in the teaching-learning process, hoping that the students of the Technical Course in Agroindustry of the Federal Institute of Education, Science and Technology ? Campus Iguatu, in the class of fruits and vegetables processing as active agents, comprehend and solidify their knowledge. In that sense, students of the Technical Course in Agroindustry produced teaching materials that could be used for the capacity of the producers of Vila Cajazeiras, with formulation techniques that could assemble value to the fruit of umbucaj? (Spondias sp). To evaluate the pedagogical process, two groups of 16 students have been created. The first group consisted of students from the Technical Course in Agroindustry with the curriculum in the integrated course (test group) and the second, students from the Technical Course in Agroindustry with the curriculum in the modulated course (control group). These students had already taken the class of fruits and vegetables processing the semester before. The evaluation method used was to evaluate the attitude of the individual, building a questionnaire about the umbu-caj? fruit with affirmatives referent to the necessary concepts and knowledge to comprehend these steps. This instrument has been applied in three different steps. For the control group, the instrument has been applied only once. In the extension activity, 16 people from the community have participated. The students were evaluated by the producers that participated in the extension activity. The processed product, nectar of umbu-caj?, has been evaluated referencing the physical-chemical, sensorial and microbiological parameters. In the physical-chemical determinations, the current legislation has been used to compare the results. In the sensorial evaluations, accepting tests have been used. As for the teaching-learning process, it has been observed that the test scores for each subject have been gradually rising as the learning would materialize, reaching the final test with more homogeneous answers. The medium scores were 4,8; 5,2 and 6,9 for T1, T2 and T3, respectively. As the students were being inserted in the context of the contemplated units of the class, it has been noted that the developed activities contributed to elevate their knowledge. In the control group the learning level was lower than in the test group. The results of the second group (control group) indicate that the students of the first group (test group) obtained higher comprehension of the proposed activities in this project, making this student search for interdisciplinary, produce his own learning, establish non-traditional pedagogical relations and learn new methods to assimilate new information and processing technologies of the umbu-caj? fruit, to better support its proposed work. Therefore, this work was important to link the student to the researching world, making him an active agent of all the process, assigning him with responsibility and making it possible for him to create different ways of constructing his own knowledge. / O presente trabalho analisou a contribui??o do desenvolvimento de atividades de um projeto de pesquisa aplicado no processo de ensino-aprendizagem, esperando-se que os estudantes do Curso T?cnico em Agroind?stria do Instituto Federal de Educa??o, Ci?ncia e Tecnologia - Campus Iguatu, da disciplina de processamento de frutos e hortali?as, como agentes ativos, compreendessem e solidificassem o conhecimento. Nesse sentido, estudantes do Curso T?cnico em agroind?stria produziram o material did?tico que pudesse ser utilizado para a capacita??o dos produtores da Vila Cajazeiras, com t?cnicas de formula??es para que eles pudessem agregar valor ao fruto do umbu-caj? (Spondias sp). Para avaliar o processo pedag?gico, foram constitu?dos dois grupos de 16 estudantes, sendo o primeiro do Curso T?cnico em Agroind?stria da matriz curricular do Curso integrado (Grupo Teste) e o segundo, por alunos do Curso T?cnico em Agroind?stria da matriz curricular do curso modulado (Grupo Controle). Esses alunos j? haviam cursado a disciplina de processamento de frutos e hortali?as no semestre anterior. Utilizou-se o m?todo de avalia??o de atitude do indiv?duo construindo-se question?rio relativo ao fruto do umbu-caj? com afirmativas referentes aos conceitos e conhecimentos necess?rios para compreender estas etapas. Esse instrumento foi aplicado em tr?s etapas diferentes. Para o Grupo controle, o instrumento foi aplicado apenas uma vez. Na atividade de extens?o participaram 16 pessoas da comunidade. Os alunos foram avaliados pelos produtores que participaram da atividade de extens?o. O produto processado, n?ctar de umbu-caj?, foi avaliado em rela??o aos par?metros f?sico-qu?micos, sensoriais e microbiol?gicos. Nas determina??es f?sico-qu?micas, para comparar os resultados, utilizou-se a legisla??o vigente. Nas avalia??es sensoriais, utilizaram-se testes de aceita??o. Quanto ao processo de ensino-aprendizagem, verificou-se que a m?dia para cada sujeito foi aumentando gradativamente nos testes, ? medida que a aprendizagem se concretizava, chegando ao ?ltimo teste com uma maior homogeneidade nas respostas, cujas m?dias foram 4,8; 5,2 e 6,9 para T1, T2 e T3, respectivamente. Na medida em que os alunos foram sendo inseridos no contexto das unidades contempladas na disciplina, verificou-se que as atividades desenvolvidas contribu?ram para elevar seu n?vel de conhecimento. O Grupo Controle o n?vel de aprendizagem foi menor do que no grupo teste. Os resultados obtidos no segundo grupo (grupo controle) indicaram que os estudantes do primeiro grupo (grupo teste) obtiveram melhor compreens?o das atividades propostas neste projeto, proporcionando a esse aluno buscar a interdisciplinaridade, produzir seus pr?prios conhecimentos, estabelecer rela??es pedag?gicas n?o-tradicionais e aprender outro m?todo para assimilar novos conhecimentos e tecnologias de processamento do fruto de umbu-caj?, para melhor fundamentar a sua proposta de trabalho. Portanto, o trabalho foi importante para vincular o estudante ao mundo da pesquisa, fazendo-o um agente ativo de todo o processo, atribuindo-lhe responsabilidade e possibilitando-lhe um modo diferente de construir seu pr?prio conhecimento.
86

Avalia??o da climatiza??o e irradia??o na manuten??o de qualidade de frutos de banana ?Prata? e ?Prata-an??. / Evaluation of climatization and irradiation in maintenance of fruit quality of banana 'Prata' and 'Prata-an??.

Martineli, Maristella 26 February 2010 (has links)
Submitted by Sandra Pereira (srpereira@ufrrj.br) on 2018-08-20T14:30:41Z No. of bitstreams: 1 2010 - Maristella Martineli.pdf: 1214722 bytes, checksum: cccf10ab7c5117e38284ec2878f3a0a6 (MD5) / Made available in DSpace on 2018-08-20T14:30:41Z (GMT). No. of bitstreams: 1 2010 - Maristella Martineli.pdf: 1214722 bytes, checksum: cccf10ab7c5117e38284ec2878f3a0a6 (MD5) Previous issue date: 2010-02-26 / Funda??o Carlos Chagas Filho de Amparo ? Pesquisa do Estado do RJ, FAPERJ, Brasil. / The experiment was conducted at the Postharvest Laboratory of UFRRJ, aiming to observe the effects of competition of the processes of irradiation and climatization sequences, on the maturation of banana 'Prata' and 'Prata an??. For the treatments, the fruits were separated into two lots. The first batch was taken to Centro Tecnol?gico do Ex?rcito (CTEx), in Rio de Janeiro, to receive doses of 0.25 kGy and 0.50 kGy in irradiator with a source of 137Cs. The second batch remained in the Postharvest Laboratory, and were underwent to exposure of calcium carbide in a dose of 7 g m-?. Part of the first batch returned to the Laboratory, being exposed under the same conditions and doses of calcium carbide. In the same manner described above, part of the second batch was taken to CTEx for exposure to the same doses of gamma radiation from the first batch. Two experiments were conducted separately. In both experiments, we evaluated the skin color, index of diseases, weight loss, firmness, peel chlorophyll, acidity, starch, soluble solids, enzymatic activity (pectinmetilesterase) and respiratory activity. In the first experiment, fruits of banana 'Prata' underwent a randomized design in factorial 8x5, except for evaluations of starch and pectinmetilesterase (8x3) and firmness (8x2). The average temperature of storage was 27 ? C. In experiment two, fruits of banana 'Prata-dwarf "were also subjected to completely randomized design with 8x5 factorial design (skin color, index and weight loss) and 8x3 for the other variables. The average temperature of storage was 23 ? C. In Experiments 1 and 2 for respiratory activity, we used a split plot design in time, with six replicates. Under the conditions of this study, the fruits obtained in the region of Angra dos Reis, Rio de Janeiro showed no positive responses in terms of quality with the application of irradiation, suggesting that the inappropriate handling of the fruits in the field, significantly influenced the results in post-harvest when the irradiation was used as a process to increase their useful life. The sequence of processes used, climatization and irradiation, regardless of the order, did not show different effects, since the fruits of both cultivars showed similar behavior during storage. More evident for the banana ?Prata-an??, treatment with gamma radiation at 0.25 kGy dose alone was effective in slowing the processes that lead to maturity / O experimento foi conduzido no Laborat?rio de P?s-Colheita da UFRRJ, com os objetivos de observar os efeitos da competi??o dos processos de irradia??o e climatiza??o seq?enciais, sobre a matura??o banana ?Prata? e ?Prata-an?. Para aplica??o dos tratamentos, os frutos foram separados em dois lotes. O 1? lote foi levado ao Centro Tecnol?gico do Ex?rcito no RJ (CTEx) para receber as doses de 0,25 kGy e 0,50 kGy em irradiador com fonte de 137Cs. O 2? lote permaneceu no Laborat?rio de P?s-Colheita, no qual foram submetidos ? exposi??o do carbureto de c?lcio na dose de 7 g m-?. Parte do 1? lote retornou ao Laborat?rio de P?s-Colheita, sendo exposta, nas mesmas condi??es e doses do carbureto de c?lcio. Da mesma forma descrita anteriormente, parte do 2? lote foi levado ao CTEx para exposi??o ?s mesmas doses de radia??o gama do 1? lote. Foram realizados dois experimentos separadamente. Nos dois experimentos, avaliou-se a colora??o da casca, ?ndice de doen?as, perda de massa fresca, firmeza, clorofila total da casca, acidez titul?vel, amido, s?lidos sol?veis totais, atividade enzim?tica (pectinametilesterase) e atividade respirat?ria. No experimento 1, frutos de banana ?Prata? foram submetidos a um delineamento inteiramente casualizado, em esquema fatorial 8x5, exceto para as avalia??es de amido e pectinametilesterase (8x3) e firmeza (8x2). A temperatura m?dia de armazenamento foi de 27? C. No experimento 2, frutos de banana ?Prata-an?? tamb?m foram submetidos ao delineamento inteiramente casualizado com esquema fatorial 8x5 (cor casca, ?ndice de doen?as e perda de massa fresca) e 8x3 para as demais vari?veis. A temperatura m?dia de armazenamento foi de 23? C. Nos experimentos 1 e 2, para a atividade respirat?ria, utilizou-se esquema de parcela subdividida no tempo, com 6 repeti??es. Nas condi??es do presente trabalho os frutos obtidos na regi?o de Angra dos Reis/RJ n?o apresentaram respostas positivas em termos de qualidade com a aplica??o da irradia??o, denotando que o manejo inadequado dos frutos em campo, influenciou significativamente nos resultados em p?s-colheita quando a irradia??o foi utilizada como processo para aumentar a vida ?til dos mesmos. A sequ?ncia dos processos utilizados, climatiza??o e irradia??o, independente da ordem, n?o apresentou efeitos diferenciados, uma vez que, os frutos, de ambas as cultivares, apresentaram comportamento semelhante durante o armazenamento. De forma mais evidente para a banana ?Prata-an??, o tratamento com radia??o gama na dose 0,25 kGy isolada foi eficiente em retardar os processos que levam ao amadurecimento.
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Avalia??o da Adi??o de Parede Celular de Saccharomyces cerevisae e de Aflatoxina B1 na ra??o para Frangos de Corte na Fase Inicial. / Broilers Performance Using Saccharomyces cerevisiae Cell Wall as an Anti-mycotoxin Additive.

Santos, Vin?cius Machado dos 03 September 2010 (has links)
Submitted by Sandra Pereira (srpereira@ufrrj.br) on 2018-08-22T11:24:50Z No. of bitstreams: 1 2010 - Vin?cius Machado dos Santos.pdf: 995846 bytes, checksum: 696b6b0e2360cb9f5762b0890f9801b2 (MD5) / Made available in DSpace on 2018-08-22T11:24:50Z (GMT). No. of bitstreams: 1 2010 - Vin?cius Machado dos Santos.pdf: 995846 bytes, checksum: 696b6b0e2360cb9f5762b0890f9801b2 (MD5) Previous issue date: 2010-09-03 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior, CAPES, Brasil. / A study was carried out to evaluate the use of Saccharomyces cerevisiae cell wall (SCCW) as an anti-mycotoxin additive in broiler chicks? diets slaughtered at 22 day age on performance, carcass characteristics and organ weights. It was used a randomized complete block design with four treatments in a factorial 2 (with aflatoxin, without aflatoxin) x 2 (with adsorbent, without adsorbent). For the performance parameters evaluated, there was a significant difference only on feed intake, when the SCCW was added to the rations. There was no interaction between aflatoxin and SCCW factors in the diet on the performance variables studied. The addition of SCCW to the chicks? diets stimulated the feed intake during 1-21 days of age. However, that did not reflect a significant increase in weight gain, or a change in feed conversion. There was a significant interaction between factors aflatoxin and SCCW on the weight post-fasting, cold carcass weight and thigh+upper weight. For the absolute hot carcass weights, breast, back and wings and carcass yields and relative weights of the cuts it was not observed a significant interaction between factors. The growth performance of broilers in the period 1-21 days old was not influenced by the levels of aflatoxin and SCCW factors used in experimental diets. Nevertheless for body weight after fasting, the cold carcass weight and absolute weight of the thigh + drumstick, the SCCW acted as an anti-mycotoxin additive by minimizing the aflatoxin toxicity. / Objetivou-se com este experimento avaliar a utiliza??o da parede celular de Saccharomyces cerevisiae (PCSC) como aditivo antimicotoxina em ra??es destinadas a frangos de corte abatidos aos 22 dias de idade sobre o desempenho, caracter?sticas de carca?a e pesos de ?rg?os. Foi adotado um delineamento experimental em blocos casualizados, com 4 tratamentos dispostos em um esquema fatorial 2 (sem aflatoxina; com aflatoxina) x 2 (sem adsorvente; com adsorvente). Para os par?metros de desempenho avaliados, observou-se diferen?a significativa apenas sobre o consumo alimentar, quando a PCSC foi adicionada ?s ra??es. N?o houve intera??o entre os fatores aflatoxina e PCSC nas ra??es sobre as vari?veis de desempenho estudadas. A adi??o de PCSC ? ra??o dos frangos estimulou o consumo de ra??o no per?odo de 1 a 21 dias de idade, entretanto, isso n?o se refletiu em aumento significativo no ganho de peso dos frangos ou altera??o na convers?o alimentar. Houve intera??o significativa entre os fatores aflatoxina e PCSC sobre o peso vivo p?s-jejum, carca?a resfriada e o peso da coxa+sobrecoxa. Para os pesos absolutos de carca?a quente, peito, dorso e asas, rendimento das carca?as e pesos relativos dos cortes n?o se observou intera??o significativa entre os fatores estudados. O desempenho zoot?cnico de frangos de corte no per?odo de 1 a 21 dias de idade n?o foi influenciado pelos n?veis dos fatores aflatoxina e PCSC utilizados nas ra??es experimentais. J? para peso vivo p?s-jejum, peso da carca?a resfriada e peso absoluto da coxa+sobrecoxa, houve uma poss?vel atua??o da PCSC como aditivo antimicotoxina, ao minimizar a a??o t?xica da aflatoxina.
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An?lise das abordagens e discuss?es DO CONTE?DO DE PEDOLOGIA nos livros did?ticos de Geografia. / Analysis of approaches and discussions of the content of Pedology in the didatic books of Geography.

Prates, Roberta 05 November 2010 (has links)
Submitted by Sandra Pereira (srpereira@ufrrj.br) on 2018-08-24T12:57:37Z No. of bitstreams: 1 2010 - Roberta Prates Belem.pdf: 2832998 bytes, checksum: 8f3e43b92b370beb4b55a175c8605f21 (MD5) / Made available in DSpace on 2018-08-24T12:57:37Z (GMT). No. of bitstreams: 1 2010 - Roberta Prates Belem.pdf: 2832998 bytes, checksum: 8f3e43b92b370beb4b55a175c8605f21 (MD5) Previous issue date: 2010-11-05 / It is known that environmental issues are increasingly being focus of attention and discussion in society and, in this context, it can be said that the pedological study from the concept, evolution, formation and use of soil is essential in the context for the referring discussions to the society and nature, that are pertinent subjects to the Geographic Science, mainly in the Basic Education that acts in the formation, abilities and competences. For this reason, the study of Pedology becomes in such a way primordial in the scope of formal education (as for example the content of the PCN?s), as well as in the informal education, approaching the importance of its knowledge for the conservation, being this essential to the premises of a sustainable use. It is worth standing out that, although there is an effort of the Geography teachers in the treatment of teaching the soils related do nature in the Medium Education and mainly in contents of the didactic books, we come across problems of understanding and transposition of concepts, of partial and inconsistent explanations and that is several times unstable for the understanding of the processes and their formation. It can be said that in this context one of the most used instruments in the teaching-learning process is the didactic book, which has as its main use to present the study of contents, to motivate activities that allow the construction of knowledge from the reflection and solution of activities, from the observation of phenomena, from events and facts in different scales of the analysis, thus bringing about the development of the creativity and the criticism. Thus aiming at improving the quality of the didactic books in 2006, the Ministry of Education ? MEC ? established criteria for the adoption of this material of Geography through the National Program of the Didactic Book for the Medium Education ? PNLEM for 2007. The fifteen (15) didactic Geography books of the Medium Education recommended by MEC were analyzed exclusively in its aspect of Pedology, but specifically in the subject soil. In the works in question, the approaches of each author on the contents related to Pedology were analyzed and pointed out, as many solutions were provided, in the attempt to supply the necessity of understanding the contents of use and importance of its study. It is suggested thus a better organization and deepening of the subject in didactic books in order to stimulate the interest of the pupil, making him understand the relation and the importance of the subject to the daily questions of the world. / Sabe-se que as quest?es ambientais v?m cada vez mais sendo foco de aten??o e discuss?o na sociedade, e neste contexto pode-se dizer que o estudo pedol?gico a partir do conceito, evolu??o, forma??o e uso de solo ? essencial no contexto para as discuss?es referentes ? sociedade e natureza, que s?o temas pertinentes ? Ci?ncia Geogr?fica, principalmente no Ensino B?sico que atua na forma??o, habilidades e compet?ncias. Por esse motivo, o estudo da pedologia torna-se primordial tanto no ?mbito do ensino formal (como por exemplo, conte?do dos PCN?s), assim como na educa??o informal abordando a import?ncia de seu conhecimento para a conserva??o, sendo este, essencial ?s premissas de um uso sustent?vel. Cabe ressaltar que embora haja um esfor?o no tratamento do ensino de solos relacionado ? natureza em n?vel do Ensino M?dio pelos professores de geografia, e principalmente nos conte?dos dos livros did?ticos, depara-se com problemas de entendimento e transposi??o de conceitos, de explica??es parciais e inconsistentes, e que por diversas vezes ? inconsistente para a compreens?o dos processos e de sua forma??o. Pode-se dizer que neste contexto um dos instrumentos mais utilizados no processo de ensino-aprendizagem ? o livro did?tico, o qual tem como a utiliza??o para apresentar o estudo de conte?dos, motivar atividades que permita a constru??o do conhecimento, a partir da reflex?o e solu??o de atividades, da observa??o de fen?menos, de acontecimentos e fatos em diferentes escalas da an?lise, acarretando assim no desenvolvimento da criatividade e da cr?tica. Desta forma, visando melhorar a qualidade dos livros did?ticos em 2006 o Minist?rio da Educa??o ? MEC, estabeleceu crit?rios para ado??o desse material de Geografia atrav?s do Programa Nacional do Livro Did?tico para o Ensino M?dio ? PNLEM para 2007. Os quinze (15) livros did?ticos de Ensino M?dio de Geografia recomendados pelo MEC, foram analisados exclusivamente em sua abordagem de Pedologia, mas especificamente no tema Solos. Nas obras, em quest?o, foram analisadas e apontadas as abordagens de cada autor sobre os conte?dos relacionados a pedologia, tanto solu??es fornecidas na tentativa de suprir a necessidade de entendimento quanto a conte?dos de uso e import?ncia se seu estudo. Sugere-se assim, uma melhor organiza??o e aprofundamento do assunto nos livros did?ticos, a fim de despertar o interesse do aluno, fazendo-o entender a rela??o e a import?ncia do tema com as quest?es cotidianas do mundo.
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A Import?ncia do Programa Institucional de Bolsas de Inicia??o ? Doc?ncia para a Forma??o de Professores de Geografia do Instituto Multidisciplinar da Universidade Federal Rural do Rio de Janeiro (UFRRJ). / The importance of the Institutional Program of Scholarship Initiation to Teaching for the Training of Teachers of Geography of the Multidisciplinary Institute of the Federal Rural University of Rio de Janeiro

Medeiros, Isabela Batista de 08 November 2017 (has links)
Submitted by Celso Magalhaes (celsomagalhaes@ufrrj.br) on 2018-09-04T12:42:00Z No. of bitstreams: 1 2017 - Isabela Batista de Medeiros.pdf: 1181183 bytes, checksum: bdd5bab5dcf737645848c0fe2fbaa991 (MD5) / Made available in DSpace on 2018-09-04T12:42:00Z (GMT). No. of bitstreams: 1 2017 - Isabela Batista de Medeiros.pdf: 1181183 bytes, checksum: bdd5bab5dcf737645848c0fe2fbaa991 (MD5) Previous issue date: 2017-11-08 / When we turn our attention to education we realize that many challenges need to be overcome, among them: problems in the initial formation of the teacher, the higher valorization of the baccalaureate to the detriment of the degrees, the devaluation of the teacher in the social and economic scope, the distance between the University and the School, dichotomy between theory and practice. We then perceive that the initial formation of the future teacher, as well as the continuing and in-service training, is of the utmost importance. For this reason, the incentive of programs such as the Institutional Scholarship Program (PIBID) can help these students, future education professionals, to face with greater certainty the challenges posed by contemporary education within the real need of the school, where problems are common to all who are part of it. In this context, this paper aims to analyze how PIBID influences the training of students of the Geography course of the Multidisciplinary Institute of the Federal Rural University of Rio de Janeiro. / Quando direcionamos nosso olhar para a educa??o percebemos que muitos desafios precisam ser superados, dentre eles: problemas na forma??o inicial do professor, a maior valoriza??o do bacharelado em detrimento das licenciaturas, a desvaloriza??o do professor no ?mbito social e econ?mico, a dist?ncia entre a Universidade e a Escola, dicotomia entre a teoria e a pr?tica. Percebemos ent?o o quanto a forma??o inicial do futuro docente, assim como a forma??o continuada e em servi?o, ? de extrema import?ncia. Por isso, o incentivo de programas como o Programa Institucional de Bolsas de Inicia??o ? Doc?ncia (PIBID), podem ajudar esses estudantes, futuros profissionais da educa??o, a enfrentar, com maior seguran?a os desafios postos pela educa??o contempor?nea dentro da real necessidade da escola, onde os problemas s?o comuns a todos que dela fazem parte. Diante deste contexto, este trabalho tem como objetivo analisar como o PIBID influencia na forma??o dos alunos do curso de Geografia do Instituto Multidisciplinar da Universidade Federal Rural do Rio de Janeiro.
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Avalia??o participativa da qualidade do solo e sanidade dos cultivos para o manejo integrado da h?rnia das cruc?feras em ambiente de montanha / Participatory evaluation of soil quality and health of crops for integrated management of cruciferous clubroot in mountain environment

Carvalho, Eduardo Spitz de 31 March 2016 (has links)
Submitted by Celso Magalhaes (celsomagalhaes@ufrrj.br) on 2018-09-11T12:50:42Z No. of bitstreams: 1 2016 - Eduardo Spitz de Carvalho.pdf: 2778180 bytes, checksum: 34e805f58061af534403ec60b6659541 (MD5) / Made available in DSpace on 2018-09-11T12:50:42Z (GMT). No. of bitstreams: 1 2016 - Eduardo Spitz de Carvalho.pdf: 2778180 bytes, checksum: 34e805f58061af534403ec60b6659541 (MD5) Previous issue date: 2016-03-31 / The municipality of Nova Friburgo is an important producer of brassica, in the Alto Rio Grande region, mainly cauliflower. This culture of great economic value has suffered with the incidence of clubroot causing huge losses, reaching 100% loss. For the prevention of the disease, it is necessary to understand that there is imbalance on the environment and that a change in the soil and crop management is crucial. In the region, young people have great importance in the production process and many of them study in technical courses offered by CEFFA (Centro Familiar de Forma??o por Altern?ncia) Col?gio Estadual Agr?cola (CEA) Rei Alberto I. The courses offered at the school work with the Pedagogy of Alternation. The aim of this study was to build with farmers and their children brassica crop management opportunities for minimizing impact of clubroot disease, with the association of local and academic knowledge. Therefore, we applied two questionnaires, one with 123 students from CEFFA CEA Rei Alberto I to the selection of the Production Units who grow brassicas and present incidence of clubroot, the other one, with 48 students, seeking to characterize the production systems, as for the topography, the main crops, and management strategies used to control the disease. At the end we selected eight production units (PUs) in different watersheds, distributed in the territorial space of the 3rd district, which were characterized by the history of clubroot in the production area, the forms of tillage, acidity correction and fertilization, seedlings source, planting season, crop rotation strategies, source of irrigation water and established strategies for coexistence with clubroot. Later, there were quality assessments of the soil, the health of crops and the potential for clubroot with students and their parents in each of the UPs. Soil samples were collected for fertility analysis. Then, there was a return of the reviews for farmers so they exchanged their joining knowledge. The management practices identified in the production units (PUs) evaluated in the 3rd District of Nova Friburgo- RJ have contributed to the spread and incidence of the disease. To live with the disease a change in the local production system design is necessary, pointing to new strategies regarding the encouragement of biotic and nutritional balance of soil and crop over the pathogen. The use of indicators to assess the local impact of potential hernia of cruciferous was efficient to point out the bottlenecks in the production of brassica system against the disease. The highly acidic pH and low Ca++ content in the soil, associated with frequent mechanization without cleaning the equipment might explain the high incidence of clubroot in the production units. The PUs require monitoring over time through evaluations of agro-ecosystems, using the tools presented in this study, as well as actions aimed at promoting the indicators towards sustainability, thus leading to the balance of soil, crops and biota / O munic?pio de Nova Friburgo ? importante produtor de br?ssicas na regi?o do Alto Rio Grande, principalmente, couve-flor. Esta cultura de grande valor econ?mico para o munic?pio vem sofrendo com a incid?ncia da h?rnia das cruc?feras com preju?zos de at? 100% de perda. Para preven??o da doen?a ? necess?rio o entendimento de que h? desequil?brio no ambiente e que a mudan?a no manejo do solo e da cultura ? imprescind?vel. Na regi?o, os jovens t?m grande import?ncia no processo de produ??o e grande parte desses estuda em cursos t?cnicos no CEFFA (Centro Familiar de Forma??o por Altern?ncia) Col?gio Estadual Agr?cola (CEA) Rei Alberto I, que funcionam com a Pedagogia da Altern?ncia. O objetivo desse trabalho foi construir participativamente junto aos agricultores e seus filhos possibilidades de manejo de cultivo de br?ssicas para o conv?vio com a doen?a h?rnia das cruc?feras, a partir da associa??o de conhecimentos locais e acad?micos. Para tanto, aplicou-se dois question?rios, um com os 123 alunos do CEFFA CEA Rei Alberto I para a sele??o das Unidades Produtivas que cultivam br?ssicas e que apresentam incid?ncia de h?rnia, o outro com 48 desses alunos, buscando caracterizar os sistemas de produ??o, quanto ao relevo, principais cultivos, e estrat?gias de manejo utilizadas para o controle da h?rnia. Ao final foram selecionadas oito unidades de produ??o (UPs) em diferentes microbacias, distribu?das no espa?o territorial do 3? distrito, as quais foram caracterizadas, quanto ao hist?rico da h?rnia das cruc?feras na ?rea de produ??o, formas de preparo do solo, corre??o da acidez e aduba??o, origem das mudas, ?poca do ano de plantio, estrat?gias de rota??o de cultivos, a origem da ?gua de irriga??o e as estrat?gias estabelecidas para a conviv?ncia com a h?rnia das cruc?feras. Posteriormente, foram avaliadas a qualidade do solo, a sanidade dos cultivos e a potencialidade para a h?rnia das cruc?feras, com os alunos e seus pais em cada UP. Foi coletado solos para an?lise de fertilidade. Posteriormente, foram retornadas as avalia??es para que os agricultores trocassem seus saberes. As pr?ticas de manejo identificadas nas unidades de produ??o (UPs) avaliadas do 3? Distrito de Nova Friburgo contribuem para dissemina??o e incid?ncia da doen?a. Para conviv?ncia com a doen?a deve ser mudada a concep??o do sistema produtivo local, apontando para novas estrat?gias para favorecimento do equil?brio bi?tico e nutricional do solo e das culturas em detrimento ao pat?geno. O uso de indicadores para avaliar a potencialidade de incid?ncia local da h?rnia das cruc?feras apontou os gargalos no sistema produtivo de br?ssicas em rela??o a doen?a. Os valores de pH, fortemente ?cidos, e os baixos teores de Ca no solo, associados a mecaniza??o frequente e sem limpeza dos equipamentos explicam a alta incid?ncia da h?rnia das cruc?feras nas unidades produtivas. As UPs necessitam acompanhamento ao longo do tempo, com avalia??es dos agroecossistemas, usando ferramentas como as apresentadas neste estudo, assim como a??es para promo??o dos indicadores no sentido da sustentabilidade, logo o equil?brio do solo, dos cultivos e da biota

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