Submitted by Celso Magalhaes (celsomagalhaes@ufrrj.br) on 2018-09-03T15:24:29Z No. of bitstreams: 1 2017 - Deumara Galdino de Oliveira.pdf: 1019700 bytes, checksum: 4721a816da519b1d051c792477ad01f0 (MD5) / Made available in DSpace on 2018-09-03T15:24:29Z (GMT). No. of bitstreams: 1 2017 - Deumara Galdino de Oliveira.pdf: 1019700 bytes, checksum: 4721a816da519b1d051c792477ad01f0 (MD5) Previous issue date: 2017-01-19 / The sustainability in agriculture can be hampered by inadequate management, such as in the practice of monocultures, or by degradation of pastures. In both situations, the productivity drops. In contrast, the production system based on the adoption of Crop-Livestock Integration rotation of crops has many benefits, such as the diversified food production, improvement of the physical, chemical and biological soil properties, increased stability production, replenishment of organic matter, reducing costs of agricultural activity due to the optimization of the use of inputs, control weeds, pests and diseases. It is noted the need for planning actions that have to be implemented in the adoption of this management, because the system of production based on the ILP is complex, in order for the framer to obtain success. The objective of this thesis is to develop and to implement a linear programming model (PL) that will provide as a result a schedule with the best selection of crops in each glebe per period and with the greatest weight gain of each animal. As well as in other areas, the PL in agriculture aims to obtain a solution that provides the best efficiency in the use of resources, since they are increasingly scarce. Thus, it is important to search for solutions that provide as a result the ideal combination between them and that will lead to better performances in agriculture, generating higher productivity and profitability. The linear programming model was developed from empirical work conducted by Alvarenga and Neto (2008) at Embrapa Maize and Sorghum research center (Sete Lagoas, MG) in an area of 24 hectares. For the implementation of the computational model data on agricultural suitability and weight gain of the animal in each period and in each glebe were needed. In order to test the mathematical model developed, values for agricultural suitability and of weight gain of animal were generated at random using the solver of MATLAB 7.4. With this, it was possible to perform the implementation of the computational linear programming model in MATLAB. There were conducted two trials; the first considering four periods, four tracts and transit of two animals, and the second with ten periods, four tracts and transit of three animals. The results show that the linear programming model is consistent with the empirical work conducted by Alvarenga and Neto (2008). The linear programming model satisfies all the restrictions imposed, maximizes the weight gain of each animal and provides the best selection of crops / A sustentabilidade na agropecu?ria pode ser prejudicada pelo manejo inadequado como a pr?tica da monocultura ou pela degrada??o das pastagens. Em ambas situa??es, a produtividade cai. Em contrapartida, o sistema de produ??o baseado na ado??o da Integra??o Lavoura-Pecu?ria (ILP) apresenta diversos benef?cios, tais como: a produ??o diversificada de alimentos, a melhoria das condi??es f?sicas, qu?micas e biol?gicas do solo, o aumento da estabilidade da produ??o, a reposi??o de mat?ria org?nica, a redu??o de custos da atividade agr?cola em virtude da otimiza??o do uso dos insumos, controle de plantas daninhas, pragas e doen?as. Observa-se a necessidade de um planejamento das a??es a serem implementadas na ado??o desse manejo, pois esse sistema de produ??o baseado na ILP ? complexo, a fim de que o produtor obtenha ?xito em sua condu??o. O objetivo da tese ? desenvolver e implementar um modelo de programa??o linear (PL) que forne?a como resultado um cronograma com a melhor sele??o de cultivos em cada gleba por per?odo e com o maior ganho de peso de cada animal. Assim como nas outras ?reas, a PL na agropecu?ria visa obter uma solu??o que apresente a melhor efici?ncia no uso dos recursos, uma vez que os mesmos est?o cada vez mais escassos. Dessa forma, ? relevante a busca por solu??es que forne?am como resultado a combina??o ideal entre os mesmos que conduza a melhores desempenhos na agropecu?ria, gerando maior produtividade e rentabilidade. O modelo de programa??o linear foi desenvolvido a partir do trabalho emp?rico realizado por Alvarenga e Neto (2008) implantado na Embrapa Milho e Sorgo (Sete Lagoas, MG) em uma ?rea de 24 hectares. Para a implementa??o computacional do modelo s?o necess?rios os dados sobre aptid?o agr?cola e ganho de peso do animal em cada per?odo e em cada gleba. A fim de testar o modelo matem?tico desenvolvido, gerou-se valores para aptid?o agr?cola e para o peso ganho pelo animal de forma aleat?ria utilizando o solver do MATLAB 7.4. Com isso, pode-se realizar a implementa??o computacional do modelo de programa??o linear no MATLAB. Foram realizados dois ensaios num?ricos, o primeiro considerando quatro per?odos, quatro glebas e tr?nsito de dois animais e o segundo com dez per?odos, quatro glebas e tr?nsito de tr?s animais. Os resultados mostram que o modelo de programa??o linear ? compat?vel com o trabalho emp?rico realizado por Alvarenga e Neto (2008). O modelo de programa??o linear satisfaz todas as restri??es impostas, maximiza o ganho de peso de cada animal e fornece a melhor sele??o de cultivos.

Submitted by Sandra Pereira (srpereira@ufrrj.br) on 2018-09-19T12:12:01Z No. of bitstreams: 1 2010 - Rafael Sanches Pacheco.pdf: 669093 bytes, checksum: 3ca2e98e7a5ac781dba791f2e1bfda70 (MD5) / Made available in DSpace on 2018-09-19T12:12:01Z (GMT). No. of bitstreams: 1 2010 - Rafael Sanches Pacheco.pdf: 669093 bytes, checksum: 3ca2e98e7a5ac781dba791f2e1bfda70 (MD5) Previous issue date: 2010-08-10 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico, CNPq, Brasil. / Nutrient concentration in the seeds can affect the initial development, biological nitrogen fixation (BNF) and yield of plants. Common bean (Phaseolus vulgaris L.) has been considered as a species with low capacity of BNF as compared to other grain legumes, but results demonstrate the potential of BNF to supply the N demand of the crop and to achieve adequate yields. The objective of this study was to evaluate the effect of seed concentrations of Mo and P on biomass production, nodulation and grain yield of common bean at different sources of N supply. The field experiment was conducted between April and July 2009, in the Santa Monica Farm of Embrapa Gado de Leite in the municipality of Valen?a ? Rio de Janeiro State. The experimental design was a split-plot 4x4 factorial randomized block with 5 replicates. The main plots consisted of four N sources: control without N, mineral N fertilization with 20 kg N ha-1 at sowing + 40 kg N ha-1 in cover, inoculation with the commercial strain of rhizobia, rhizobia inoculation + 40 kg N ha-1 in cover. The subplots consisted of four combinations between concentrations of P and Mo in the seeds (low P low Mo, low P high Mo, Mo high P low, high-P high-Mo). The seeds of cultivar Carioca were originating from a field experiment when 5 kg P ha-1 and 120 g Mo ha-1 were foliar sprayed at 52 and 71 days after emergence (DAE). In each subplot, plant biomass were sampled at 30, 42 and 57 DAE, and root, shoot and nodules dry mass, the number of nodules and the accumulation of N in the shoot were determined. Grains were harvested at 90 DAE, and grain yield, yield components, N and Mo concentratios in the grains were measured. Interactions between the N sources and the concentrations of P and Mo in the seeds were not significant in the three sampling times, except for shoot dry mass and number of nodules at 57 DAE. Seeds with low P and high Mo increased shoot dry matter and grain yield of beans. Mineral N fertilizer increased root mass in the early growth stages. The rhizobia inoculation increased bean nodulation. There was a small effect of the seeds with high P concentration in the accumulation of N and mass of shoots at 57 DAE. Mineral N fertilizer increased N accumulation in the shoots at 57 DAE. The inoculation + 40 kg N ha-1 in cover gave similar grain yield and N accumulation as the application of 60 kg N ha-1, both treatments superior to the control. The use of seeds enriched with P and Mo, associated with the inoculation of seeds and the application of N in cover, could maximize the process of biological nitrogen fixation in the common bean crop. / A concentra??o de nutrientes nas sementes pode afetar o desenvolvimento inicial, a fixa??o biol?gica de nitrog?nio (FBN) e a produ??o de gr?os das plantas por elas geradas. O feijoeiro (Phaseolus vulgaris L.) tem sido considerado uma esp?cie de baixa capacidade de FBN em compara??o com outras leguminosas de gr?o, mas resultados demonstram o potencial da FBN em suprir a demanda de N do feijoeiro e obter boas produtividades. O objetivo deste estudo foi avaliar o efeito dos teores de P e Mo em sementes na produ??o de biomassa, nodula??o e no rendimento de gr?os de feijoeiro sob diferentes fontes de fornecimento de N. O experimento foi conduzido em condi??es de campo entre abril e julho de 2009, na Fazenda Santa M?nica da Embrapa Gado de Leite, no munic?pio de Valen?a ? RJ, em delineamento em blocos ao acaso em fatorial 4x4 com 5 repeti??es em parcelas subdivididas. As parcelas foram compostas por quatro fontes de N: testemunha absoluta sem N; aduba??o com N mineral com 20 kg N ha-1 no plantio + 40 kg N ha-1 em cobertura; inocula??o com a estirpe comercial de riz?bio recomendada para a cultura; inocula??o com estirpe comercial + 40 kg N ha-1 em cobertura. As subparcelas foram compostas por quatro combina??es entre teores de P e de Mo na semente (baixo P baixo Mo, baixo P alto Mo, alto P baixo Mo, alto P alto Mo). As sementes da cultivar Carioca utilizadas foram oriundas de um experimento de campo onde foram efetuadas aplica??es foliares com 5 kg P ha-1 e 120 g Mo ha-1 aos 52 e 71 dias ap?s emerg?ncia (DAE). Em cada subparcela foram efetuadas tr?s amostragens de biomassa, aos 30, 42 e 57 DAE, determinando-se a massa seca de raiz, parte a?rea e n?dulos, o n?mero de n?dulos e a acumula??o de N na parte a?rea. A colheita de gr?os foi efetuada aos 90 DAE, determinando-se o rendimento de gr?os, os componentes de produ??o e o teor de N e de Mo nos gr?os. As intera??es entre as fontes de N e os teores de P e Mo das sementes, nas tr?s ?pocas de coleta, n?o foram significativas, exceto para massa seca de parte a?rea e n?mero de n?dulos aos 57 DAE. As sementes com baixo P e alto Mo foram as que promoveram maior massa de parte a?rea e tamb?m a maior produ??o de gr?os de feij?o. A aduba??o com N mineral promoveu maior massa radicular nos est?gios iniciais de crescimento. A inocula??o das sementes com riz?bio aumentou a nodula??o do feijoeiro. Houve um pequeno efeito dos altos teores de P nas sementes na acumula??o de N e de biomassa da parte a?rea aos 57 DAE. A aplica??o de N mineral promoveu maior ac?mulo da N na parte a?rea aos 57 DAE. A inocula??o combinada com 40 kg N ha-1 em cobertura forneceu rendimento de gr?os e acumula??o de N nos gr?os similar ? aplica??o de 60 kg N ha-1, por sua vez superiores ? testemunha. O uso de sementes enriquecidas com P e Mo, associada com a inocula??o de sementes e a aplica??o de N em cobertura, podem maximizar o processo de fixa??o biol?gica de nitrog?nio na cultura do feijoeiro.

Submitted by Sandra Pereira (srpereira@ufrrj.br) on 2018-09-19T14:22:57Z No. of bitstreams: 1 2010 - M?rcia de Freitas Rosa.pdf: 8558207 bytes, checksum: 084652082b79dd99a23b5994dc3364e1 (MD5) / Made available in DSpace on 2018-09-19T14:22:57Z (GMT). No. of bitstreams: 1 2010 - M?rcia de Freitas Rosa.pdf: 8558207 bytes, checksum: 084652082b79dd99a23b5994dc3364e1 (MD5) Previous issue date: 2010-10-08 / In this work was studied the contribution of Good Agricultural and Manufacturing Practices in the acquisition of abilities proposed by the curriculum of the Agriculture and Livestock Technical Course and Agroindustry Technical Course of Federal Institute of Tri?ngulo Mineiro- Uberl?ndia Campus (IFTM-Uberl?ndia Campus). An interdisciplinary proposal was applied to the production of vegetables destined to the consumption in the sector of feeding and nutrition of the Institution. 20 students from the Agriculture Technical course and 17 from the Agroindustry Technical course from IFTM-Uberl?ndia Campus. It was used as the object of work for the pedagogical evaluation planting of lettuce, one in the conventional way and another with the application of Good Agricultural Practices. In the evaluation of the pedagogical process, the method of evaluation of individual attitude was used, constructing relative affirmative questions to the main phases of development of the steps that made this work (process and its controls and microbiological analyses). The evaluation tools contained affirmations referring to the concepts and necessary knowledge to understand the good stages that involve the process of the good practical. These were punctuated with a scale ranging from ?I disagree very much? to ?I agree very much?, with a total of seven points. These were applied in two different stages, being first the representative one of zero condition, which is, without any involvement with the activities of the project and second, after concluding the practical activities. For each plantation, 50 randomly harvested heads of lettuce were selected. The samples of each plantation (conventional and GAP) and each processing (conventional and GMP), after the collection, were transported to the laboratory of Food Microbiological Analyses of the IFTM- Uberl?ndia Campus, where Total and Fecal Coliforms were analyzed. The diagnostic tests on the knowledge in GAP and GMP presented average above 6 for the four evaluated groups, but there was an increase in the values of notes of the evaluations, after the applied training. However, the results did not present significant statistical differences between the groups, both in the first and in the second moment in relation to the knowledge level on GAP and GMP. This result can e justified, because the study had the limitation to a small sample. In the analysis of images of subjects at different stages of labor was observed cooperation and organization of the group leaders with the creation of better performance of the activities. The present work allowed the academic knowledge to the applied research. It was possible to follow the construction of the knowledge of the students and researcher, which was accomplished by means of the principles that support interdisciplinary practices, who contribute to the formation of citizens critical and participative. / Neste trabalho foi estudada a contribui??o das Boas Pr?ticas Agr?colas e de Fabrica??o na aquisi??o de compet?ncias propostas pelas matrizes curriculares dos Cursos T?cnicos em Agropecu?ria e Agroind?stria do Instituto Federal do Tri?ngulo Mineiro-Campus Uberl?ndia (IFTM-Campus Uberl?ndia). Foi utilizada uma proposta interdisciplinar aplicada ? produ??o de hortali?as folhosas destinada ao consumo no Setor de Alimenta??o e Nutri??o da Institui??o. Participaram da pesquisa 20 estudantes do Curso T?cnico em Agropecu?ria e 17 do Curso em Agroind?stria do IFTM-Campus Uberl?ndia. Utilizou-se como objeto de trabalho para a avalia??o pedag?gica o plantio de alface, sendo um na forma convencional e outro com a aplica??o das Boas Pr?ticas Agr?colas. Na avalia??o do processo pedag?gico, utilizou-se o m?todo de avalia??o de atitude do indiv?duo, construindo-se quest?es afirmativas relativos ?s principais fases de desenvolvimento das etapas que compuseram este trabalho (processo e seus controles e an?lises microbiol?gicas). Os instrumentos de avalia??o continham afirmativas referentes aos conceitos e conhecimentos necess?rios para compreender as etapas que envolvem o processo das boas pr?ticas. Estas foram pontuadas com uma escala variando entre o ?discordo muito? ao ?concordo muito?, com um total de sete pontos. Esses foram aplicados em duas etapas diferentes, sendo a primeira representativa da condi??o zero, ou seja, sem qualquer envolvimento com as atividades do projeto e a segunda, ap?s concluir as atividades pr?ticas. Utilizou-se ainda, an?lise das imagens dos sujeitos nas diferentes etapas do trabalho. Para cada plantio foram selecionados 50 p?s de alface, colhidos aleatoriamente. As amostras de cada plantio (convencional e BPA) e cada processamento (convencional e BPF), ap?s a coleta, foram transportadas para o Laborat?rio de An?lises Microbiol?gicas de Alimentos do IFTM-Campus Uberl?ndia, onde foram realizadas as an?lises de Coliformes a 35?C e Coliformes a 45?C. Os testes diagn?sticos sobre os conhecimentos em BPA e BPF apresentaram notas m?dias superiores a 6 para os quatro grupos avaliados, houve um aumento nos valores das notas das avalia??es, ap?s o treinamento aplicado. Entretanto, os resultados n?o demonstraram diferen?as estat?sticas significativas entre os grupos, tanto no primeiro quanto no segundo momento em rela??o ao n?vel de conhecimento sobre BPA e BPF. Esse resultado pode ser justificado, uma vez que o estudo teve a limita??o quanto ao pequeno tamanho da amostra. Na an?lise das imagens dos sujeitos nas diferentes etapas do trabalho foi observada a coopera??o e a organiza??o do grupo com a cria??o de lideres melhorando o desempenho das suas atividades. O presente trabalho permitiu vincular o conhecimento acad?mico ? pesquisa aplicada. Foi poss?vel acompanhar a constru??o do conhecimento por parte dos estudantes e pesquisador, que se efetivou por meio dos princ?pios que embasam a pr?tica interdisciplinar, os quais contribuem para a forma??o de cidad?os cr?ticos e participativos.

Submitted by Jorge Silva (jorgelmsilva@ufrrj.br) on 2018-11-29T17:12:51Z No. of bitstreams: 1 2013 - Renata Silva Cabral de Souza.pdf: 1753830 bytes, checksum: 2dff8752eb3f7974e34f8809d059f126 (MD5) / Made available in DSpace on 2018-11-29T17:12:51Z (GMT). No. of bitstreams: 1 2013 - Renata Silva Cabral de Souza.pdf: 1753830 bytes, checksum: 2dff8752eb3f7974e34f8809d059f126 (MD5) Previous issue date: 2013-05-23 / CAPES / The aim of this study was to evaluate the process of protein concentration in bovine whey proteins by ultrafiltration process and subsequently the protein hydrolysate obtained by enzymatic hydrolysis to produce bioactive peptides with potential antimicrobial and antioxidant activities. For concentration process was used a ceramic ultrafiltration membrane with a molecular range cut-off of 10-20 kDa, transmembrane pressure of 5 bar and, temperature of 30 ?C, 40 ?C and 50 ?C . The optimum temperature condition was at 40 ?C. The Volume Concentrate Factor (VCF) parameter was used as a end-point of the ultrafiltration process and fixed at 2, corresponding on concentrating the initial volume twice, in volume. At the temperature of 40 ?C, VCF had a correspondence on final protein concentration on the concentrated fraction by ultrafiltration and confirmed by Bradford method. Two commercial enzymes were tested Alcalase, Flavourzyme and an equivalent mixture of both 50:50 (w/w) in the hydrolysis reaction. The hydrolysis conditions were determined according to manufacturer instructions and confirmed by other studies: 60 ?C and pH 8 for Alcalase; 50 ?C and pH 7 for Flavourzyme; 50 ?C and pH 8 for enzyme mixture with enzyme / substrate ratio (w / w) 5/100 for all enzymes. The reaction was monitored by pH Stat method. The final Degree of Hydrolysis (DH) achieved was 15%, 52% and 63% for Flavourzyme, Alcalase and enzyme mixture, respectively. Five aliquots were collected along the hydrolysis for each enzyme reaction corresponding to differents DH in order to evaluatethe antioxidant activity by ORAC and ABTS assays with final values between 597- 1092 m? TE (ABTS) and from 1615 to 2920 ?M TE (ORAC) for Flavourzyme; 998-6290 ?M TE (ABTS) and 3092-7567 ?M TE ( ORAC) for Alcalase and finally 913-2678 ?M TE (ABTS) and 2547-5903 ?M TE (ORAC) for the enzyme mixture. The samples from all hydrolysates showed no antimicrobial activity against strains of Salmonella choleraesuis subsp. Enteritidis (ATCC 13076) and Listeria monocytogenes (ATCC 9117). / A proposta do presente trabalho foi avaliar a concentra??o das prote?nas do soro de leite bovino por ultrafiltra??o e posterior obten??o de hidrolisados proteicos deste concentrado via hidr?lise enzim?tica visando obter pept?deos bioativos com potencial atividade antimicrobiana e antioxidante. Para concentra??o das prote?nas do soro foi utilizada membrana cer?mica de ultrafiltra??o com massa molar de corte de 10-20 kDa, press?o aplicada ? membrana de 5 bar, temperaturas testadas (30 ?C, 40 ?C e 50 ?C) . A temperatura ?tima selecionada foi de 40 ?C. O Fator de Concentra??o Volum?trica foi o par?metro utilizado para indicar o final do processo de ultrafiltra??o sendo fixado em duas vezes o volume inicial da alimenta??o. Na temperatura de 40 ?C foi obtida correspond?ncia entre a concentra??o volum?trica e a concentra??o proteica final na fra??o retida pela UF, que tamb?m foi o dobro da encontrada na fra??o alimenta??o, avaliada pelo m?todo de Bradford. Foram testadas duas enzimas comerciais: Alcalase, Flavourzyme e uma mistura equivalente de ambas, na propor??o 50:50 (m/m) na rea??o de hidr?lise. As condi??es de rea??o enzim?tica foram determinadas de acordo com instru??es do fabricante e corroboradas por outros estudos em: 60 ?C, pH 8 para Alcalase; 50 ?C, pH 7 para Flavourzyme; 50 ?C, pH 8 para mistura enzim?tica e rela??o enzima/substrato (g/g) foi de 5/100 para todas as enzimas. A rea??o de hidr?lise foi monitorada pelo m?todo pH Stat. Os Graus de Hidr?lise (GH) finais alcan?ados foram de 15 %, 52 % e 63 % para Flavourzyme, mistura enzim?tica e Alcalase, respectivamente. Foram coletadas cinco al?quotas correspondentes a diferentes GH ao longo da rea??o para cada condi??o enzim?tica utilizada e avaliadas quanto a atividade antioxidante pelos m?todos ABTS e ORAC tendo valores entre 597 a 1092 ?M TE (ABTS) e 1615 a 2920 ?M TE (ORAC) para Flavourzyme, 998 a 6290 ?M TE (ABTS) e 3092 a 7567 ?M TE (ORAC) para Alcalase e por fim, 913 a 2678 ?M TE (ABTS) e 2547 a 5903 ?M TE (ORAC) para a mistura enzim?tica. Nenhuma das amostras de hidrolisado com diferentes GH apresentou atividade antimicrobiana contra cepas de Salmonella choleraesuis subsp. Enteritidis (ATCC 13076) e Listeria monocytogenes (ATCC 9117).

Submitted by Jorge Silva (jorgelmsilva@ufrrj.br) on 2018-11-29T17:27:43Z No. of bitstreams: 1 2013 - Ivaldo Jos? da Silva.pdf: 36618657 bytes, checksum: 428b35f4aa0bf23daa7adf9b14b4e7ef (MD5) / Made available in DSpace on 2018-11-29T17:27:43Z (GMT). No. of bitstreams: 1 2013 - Ivaldo Jos? da Silva.pdf: 36618657 bytes, checksum: 428b35f4aa0bf23daa7adf9b14b4e7ef (MD5) Previous issue date: 2013-03-21 / Research in Environmental Education Criticizes aims to construct and reflective critique of knowledge allowing individuals greater contextualisation-environmental relations and consequent changes, in attitudes towards collective transformation of reality. The municipality of Z? Doca, regional pole of Turi, located east of the State of Maranh?o, in the Northeast region near the border with the State of Par?, is responsibility to articulate educational actions, political and economic, social and environmental development of over 17 other municipalities in the region. It was found that municipalities the environmental sanitation and water treatment is performed unsatisfactorily and precarious, signaling the need for sustained research-driven actions on the principles of education Wake up in the population capable environmental more questioning and intervention in the local reality. This research aimed to instigate critical knowledge construction to allow greater local perception of reality, associated with insertion technique feasibility research, Community research, alternative technology of water treatment based on ultraviolet radiation-UV Tube. The Methodological development used by this social research was action research procedures where awareness, dynamic cooking workshops, adaptation and installation of UV Tube, meetings and other educational practices addressed the theme of water treatment, social issues, environment and health, among other correlated in a participative manner, reflective and harmonic among respondents and researchers. The search area was chosen as the community of rural settlement good hope, located in Z? Doca, where were installed and evaluated 05 (five) UV Tube units. Data collection took place 64 (sixty-four) interviews and questionnaires applied before the dynamics of awareness and at the end of the whole educational process in order to identify improvement in the perception of the community in relation to the subject dealt with and the local reality, and consequential changes in attitudes. The treatment of data collected in the questionnaires presented variables that were tested with the non-parametric test of Chi-square and other calculated averages of answers with their respective standard deviations and their minimum and maximum values. The results indicated favourable conditions for the adaptation and insertion of the UV tube technology showing economic viability and operational compared to similar projects successfully installed in other countries, especially the acceptance of the proposal and the ease of access to the materials needed to manufacture of UV Tube. As the analysis of educational activities related to the thematic discussion addressed significant responses were expansions and modifications in order to understand the local reality criticizes pointing, including changes to posture that assisted the search for better quality of life for the community. It is concluded that the implementation of concrete action of insertion of the UV Tube use, Dialogic and critical process of construction of knowledge based on the intrinsic relationship between action and reflection associated with the permissive criticizes of knowledge built by researched and researchers was the recipe to achieve the objectives of the survey. / A pesquisa em Educa??o Ambiental Cr?tica visa ? constru??o reflexiva e cr?tica de conhecimentos, permitindo aos indiv?duos maior contextualiza??o das rela??es socioambientais e consequentes mudan?as de atitudes voltadas para transforma??o coletiva da realidade. O munic?pio de Z? Doca, p?lo regional do Alto Turi, localizado a leste do Estado do Maranh?o, pr?ximo a divisa com o Estado do Par? ? respons?vel em articular a??es educacionais, socioambientais, pol?ticas e econ?micas para o desenvolvimento de mais 17 outros munic?pios da regi?o. Verificou-se que nestes munic?pios o saneamento ambiental e, principalmente, o tratamento de ?gua, s?o realizados de forma insuficiente e prec?ria, sinalizando a necessidade de a??es orientadas por pesquisas sustentadas nos princ?pios de uma Educa??o Ambiental capaz de despertar na popula??o maior problematiza??o e interven??o na realidade local. Esta pesquisa objetivou instigar a constru??o de conhecimentos cr?ticos aptos a permitirem maior percep??o da realidade local associada ? investiga??o da viabilidade t?cnica de inser??o, junto ? comunidade pesquisada, de tecnologia alternativa de tratamento de ?gua baseado em radia??o ultravioleta ? Tubo UV. Para o desenvolvimento metodol?gico esta pesquisa social utilizou-se de procedimentos da pesquisa-a??o em que din?micas de sensibiliza??o, oficinas de confec??o, adapta??o e instala??o do Tubo UV, reuni?es e outras pr?ticas educacionais abordaram a tem?tica do tratamento de ?gua, as quest?es sociais, ambientais e de sa?de, entre outras correlacionadas de forma participativa, reflexiva e harm?nica entre pesquisados e pesquisadores. Como ?rea de pesquisa foi escolhida a comunidade do assentamento rural Boa Esperan?a - ABE, localizada em Z? Doca onde foram instalados e avaliados 05 (cinco) unidades do Tubo UV. Para coleta de dados foram realizadas 64 (sessenta e quatro) entrevistas e aplicados question?rios antes das din?micas de sensibiliza??o e ao final de todo o processo educativo, com objetivo de identificar melhoria na percep??o da comunidade em rela??o ? tem?tica abordada e a realidade local, al?m de consequentes mudan?as de atitudes. O tratamento dos dados coletados nos question?rios apresentou vari?veis que foram analisadas com o teste n?o param?trico do Qui-Quadrado e outras, calculadas as m?dias de respostas com seus respectivos desvios padr?es e seus valores m?nimos e m?ximos. Os resultados indicaram condi??es favor?veis ? adapta??o e inser??o da tecnologia do Tubo UV apresentando viabilidade econ?mica e operacional comparada a projetos id?nticos instalados com sucesso em outros pa?ses, destacando-se a aceita??o da proposta e a facilidade de acesso aos materiais necess?rios a confec??o do Tubo UV. Quanto a an?lise das a??es educativas relacionadas a discuss?o da tem?tica abordada registraram-se significativas respostas de amplia??es e modifica??o na forma cr?tica de perceber a realidade local apontando, inclusive, mudan?as de postura que auxiliaram a busca de melhor qualidade de vida para comunidade. Conclui-se que a realiza??o da a??o concreta da inser??o do uso do Tubo UV, em processo dial?gico e cr?tico de constru??o de conhecimento pautado na rela??o intr?nseca entre a??o e reflex?o associada ? permissiva cr?tica dos saberes constru?dos por pesquisados e pesquisadores foi a receita para alcan?ar os objetivos da pesquisa.

Submitted by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-01-23T14:01:54Z No. of bitstreams: 5 17.pdf: 2865248 bytes, checksum: 30e82d4c4ee34e8a39b8c749441f52e8 (MD5) license_url: 52 bytes, checksum: 3d480ae6c91e310daba2020f8787d6f9 (MD5) license_text: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-02-10T11:24:03Z (GMT) No. of bitstreams: 5 17.pdf: 2865248 bytes, checksum: 30e82d4c4ee34e8a39b8c749441f52e8 (MD5) license_url: 52 bytes, checksum: 3d480ae6c91e310daba2020f8787d6f9 (MD5) license_text: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) / Made available in DSpace on 2015-02-10T11:24:03Z (GMT). No. of bitstreams: 5 17.pdf: 2865248 bytes, checksum: 30e82d4c4ee34e8a39b8c749441f52e8 (MD5) license_url: 52 bytes, checksum: 3d480ae6c91e310daba2020f8787d6f9 (MD5) license_text: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) Previous issue date: 2012 / Este trabalho teve como objetivo conhecer a estrutura da comunidade arb?rea, diversidade, riqueza, as fun??es ecol?gicas das esp?cies, a influ?ncia das vari?veis ambientais, espaciais e os padr?es funcionais das esp?cies na distribui??o da vegeta??o em um fragmento de Floresta Estacional Decidual. O estudo foi conduzido em ?reas de reserva legal de propriedades particulares no munic?pio de Presidente Juscelino (MG), nas coordenadas 18?38?40?S e 44?04?57?W, com altitudes variando entre 600 e 890 m. O remanescente possui aproximadamente 150 ha, com relevo c?ncavo e declividades acentuadas. Foram observadas por??es ?reas com alto grau de dist?rbios antr?picos. H? evid?ncias de corte raso em uma faixa de vegeta??o, assim como de corte seletivo de algumas esp?cies de interesse comercial. Destaca-se tamb?m a exist?ncia de dist?rbios como, a alta compacta??o do solo gerada pela entrada de gado em algumas parcelas, clareiras naturais e antr?picas; solo exposto e trilhas ao longo do fragmento. Para o invent?rio florestal foram alocadas 25 parcelas permanentes de 20 ? 20 m (400 m?), totalizando ?rea amostral de 1 hectare. Nestas foram amostrados todos os indiv?duos arb?reos com circunfer?ncia ? altura do peito (CAP) > 15,7 cm, exceto lianas e indiv?duos mortos. As esp?cies amostradas foram classificadas em cinco sistemas de guildas (grupo ecol?gico, dispers?o, poliniza??o, toler?ncia ? desseca??o e densidade da madeira), a fim de formar grupos funcionais. Para a avalia??o das rela??es entre as vari?veis ambientais e a distribui??o do compartimento arb?reo, foram coletadas aleatoriamente no interior de cada parcela cinco amostras simples do solo superficial (0?20 cm), com cerca de 500 g de solo. Al?m do solo foram coletadas vari?veis de relevo, dossel e matriz de impacto (natural e antr?pico). Estas foram submetidas a uma An?lise dos Componentes Principais (PCA), onde apenas cinco das 28 vari?veis iniciais apresentaram alta correla??o: Calc?rio (Ca); Pot?ssio (k); Argila; rocha exposta e mat?ria org?nica. Tr?s das cinco esp?cies de maior valor de import?ncia apresentaram distribui??es diam?tricas relacionados com efeitos de resposta p?s-dist?rbio e a caracter?sticas da pr?pria esp?cie. Foi verificado um alto valor de H?, o que indica uma ?rea com diversidade relativamente alta e um baixo valor para J? e uma forte domin?ncia ecol?gica de esp?cies. Os resultados da an?lise de parti??o da vari?ncia a partir dos modelos de regress?o m?ltipla feita para cada eixo da an?lise NMDS mostraram que a distribui??o da vegeta??o est? altamente correlacionada com a estrutura espacial e ? influenciada em parte pelas vari?veis ambientais argila e mat?ria org?nica. A an?lise de classifica??o Twinspan definiu quatro grupos distintos entre as esp?cies avaliadas os quais se diferenciaram em rela??o ?s suas fun??es ecol?gicas. A compara??o da participa??o dos grupos de ordena??o da NMDS em rela??o aos grupos funcionais de classifica??o Twinspan, mostrou que a ?rea estudada apresenta um padr?o funcional dominado por esp?cies pioneiras a secund?rias iniciais, com dispers?o anemoc?rica e germina??o ortodoxa. O fragmento estudado encontra-se em um est?dio inicial de sucess?o secund?ria, onde as diferentes estrat?gias ecol?gicas das esp?cies ocuparam posi??es distintas ao longo do fragmento, apresentando tend?ncias adaptativas das esp?cies as condi??es do ambiente. Os resultados refor?am a hip?tese da grande import?ncia de conserva??o deste fragmento de Floresta Estacional Decidual. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Ci?ncia Florestal, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2012. / ABSTRACT This study aimed to know the structure of the tree community, diversity, richness, the ecological functions of species, the influence of environmental variables, spatial and functional patterns of the species in the vegetation distribution in a fragment of Deciduous Forest. The study was conducted in areas of legal reserve of private properties in the municipality of President Juscelino (MG), at coordinates 18 ? 38'40 "S and 44 ? 04'57" W, with altitudes ranging between 600 and 890 m. The remainder has approximately 150 ha, with concave topography and steep slopes. Portions were observed areas with a high degree of human disturbance. There is evidence of clear-cutting in a strip of vegetation, as well as selective logging of some species of commercial interest. Also noteworthy is the existence of disorders such as high soil compaction caused by the entry of cattle in some parts, natural and anthropogenic clearings, exposed soil and trails along the fragment. For the forest inventory were allocated 25 permanent plots of 20 ? 20 m (400 m?), a total sample area of ??1 hectare. These were all sampled trees with circumference at breast height (CAP)> 15.7 cm, except lianas and dead individuals. The sampled species were classified into five systems guilds (ecological group, dispersion, pollination, desiccation tolerance and density of the timber) to form functional groups. To assess the relationships between environmental variables and distribution of tree compartment were collected randomly within each plot five single samples of surface soil (0-20 cm), with about 500 g of soil. Apart from the soil were collected relevant variables, canopy and impact matrix (natural and man-made). These were submitted to a Principal Component Analysis (PCA), where only five of the 28 initial variables were highly correlated: Limestone (Ca), Potassium (k), Clay, exposed rock and organic matter. Three of the five species of greatest importance value showed diameter distributions related to effects of disorder and post-response characteristics of the species itself. There was a high value H ', which indicates an area with relatively high diversity and a low value for J' and a strong predominance ecological species. The results of analysis of variance partitioning from the multiple regression models made for each shaft NMDS analysis showed that the distribution of vegetation is highly correlated with the spatial structure and is partly influenced by environmental clay and organic matter. The classification analysis Twinspan identified four distinct groups among the studied species which differ in relation to their ecological functions. The comparison of the participation of groups of NMDS ordination in relation to the functional group classification Twinspan showed that the study area presents a functional pattern dominated by pioneer species to early secondary, with orthodox anemochoric and germination. The fragment is studied in an early stage of secondary succession, where the different ecological strategies species occupied different positions along the fragment, present trends adaptive species environmental conditions. The results reinforce the hypothesis of the importance of conservation of this fragment Deciduous Forest.

Submitted by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-01-23T14:01:54Z No. of bitstreams: 5 19.pdf: 9944225 bytes, checksum: 7d50a9408aa35036b7421c6e3e8c7752 (MD5) license_url: 52 bytes, checksum: 3d480ae6c91e310daba2020f8787d6f9 (MD5) license_text: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-02-10T11:32:26Z (GMT) No. of bitstreams: 5 19.pdf: 9944225 bytes, checksum: 7d50a9408aa35036b7421c6e3e8c7752 (MD5) license_url: 52 bytes, checksum: 3d480ae6c91e310daba2020f8787d6f9 (MD5) license_text: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) / Made available in DSpace on 2015-02-10T11:32:26Z (GMT). No. of bitstreams: 5 19.pdf: 9944225 bytes, checksum: 7d50a9408aa35036b7421c6e3e8c7752 (MD5) license_url: 52 bytes, checksum: 3d480ae6c91e310daba2020f8787d6f9 (MD5) license_text: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) Previous issue date: 2012 / A Serra do Espinha?o Meridional - SdEM, nascente do Rio Jequitinhonha e de importantes afluentes dos Rio S?o Francisco e Doce, possui litologias predominantemente quartz?ticas e ? caracterizada por apresentar ?reas dissecadas entremeadas a superf?cies de aplainamento, onde, nas depress?es, ocorrem as turfeiras, grandes reservat?rios de mat?ria org?nica e de ?gua. A turfeira pode ser definida como um substrato constitu?do por restos de vegetais mortos, em diferentes est?gios de decomposi??o, que se acumulam em sucess?o em lugares ?midos ou encharcados onde haja uma consider?vel redu??o na atividade biol?gica devido ?s in?spitas condi??es do meio. ? formada pelo ac?mulo em sucess?o de restos vegetais, em locais que apresentam condi??es que inibem a atividade de microrganismos decompositores, como excesso de umidade, baixo pH, escassez de oxig?nio e temperaturas amenas. Outro papel importante reservado para as turfeiras ? sua utiliza??o como arquivo ambiental e cronol?gico da evolu??o das paisagens, das mudan?as clim?ticas e da deposi??o atmosf?rica de metais pesados, em escala regional ou mesmo global. O objetivo deste trabalho foi mapear as turfeiras da por??o norte da SdEM, determinar seu estoque de mat?ria org?nica armazenada e utilizar is?topos de carbono para identificar mudan?as ambientais regionais que ocorreram no Quatern?rio. Turfeiras pr?-selecionadas foram mapeadas atrav?s de trabalhos de campo e de t?cnicas de geoprocessamento e sensoriamento remoto, utilizando os softwares Arcgis 9.3, Envi 4.5 e GPS Trackmaker Pro. A caracteriza??o dos organossolos foi realizada de acordo com metodologia preconizada no Sistema Brasileiro de classifica??o de Solos. Amostras foram enviadas para determina??o da composi??o isot?pica (?13C) e data??es radiocarb?nicas (14C) por espectrometria de cintila??o l?quida de baixa radia??o de fundo. Numa primeira aproxima??o foi poss?vel mapear 14.287,55 hectares de turfeiras distribu?das ao longo de 1.180.109 hectares da SdEM, o que representa 1,2% da ?rea total. Essas turfeiras ocupam um volume m?dio de 170.021.845,00 metros c?bicos, armazenam 4.488.576,71 toneladas de mat?ria org?nica e acumulam em m?dia 314,16 t ha-1. A maioria das turfeiras mapeadas segue o seguinte padr?o ambiental: ocorrem em ?reas aplainadas da superf?cie S2, tendo em sua base rochas quartz?ticas, entre 1100 e 1350 metros de altitude, onde as temperaturas e precipita??es anuais m?dias s?o respectivamente menores que 19?C e maiores que 1200 mm e est?o colonizadas por vegeta??o campestre, com esparsos cap?es de mata. Nas turfeiras da SdEM predominam os est?gios de decomposi??o da mat?ria org?nica avan?ado (s?prico), seguido do intermedi?rio (h?mico). A taxa de crescimento vertical variou entre 0,058 e 0,43 mm ano-1, enquanto a taxa de ac?mulo de carbono oscilou entre 0,95 e 53,91 g m-2 ano-1. As turfeiras que se situam em posi??es altim?tricas de 1.000 a 1.200m e acima de 1.700 m s?o mais recentes (Holoc?nicas), ao passo que aquelas que ocupam posi??es entre 1.200 e 1.700 metros de altitude s?o mais antigas (Pleistoc?nicas). As turfeiras da SdEM, come?aram a ser formadas no Pleistoceno Superior (42.175? 3390 anos A.P.), quando estavam colonizadas predominantemente por plantas de ciclo fotossint?tico CAM. A vegeta??o foi mudando gradativamente para plantas do ciclo fotossint?tico C3 ao longo da transi??o Pleistoceno-Holoceno, processo associado a mudan?as paleoclim?ticas. Atrav?s de mapeamentos via t?cnicas de geoprocessamento e sensoriamento remoto foi poss?vel entender melhor a natureza geol?gica, geomorfol?gica e hidroclimatol?gica das turfeiras e sua inser??o na paisagem regional. Os ambientes turfosos da SdEM guardam significativa import?ncia no armazenamento de carbono org?nico e ?gua e enquanto testemunho de mudan?as paleoambientais, o que fundamenta uma necessidade urgente e emergente no sentido de proporcionar maior prote??o e preserva??o a esses pedoambientes. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Ci?ncia Florestal, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2012.

Submitted by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-01-23T14:01:54Z No. of bitstreams: 5 2.pdf: 1355294 bytes, checksum: 9086c9df4915c340a9a61b61dd236b86 (MD5) license_url: 52 bytes, checksum: 3d480ae6c91e310daba2020f8787d6f9 (MD5) license_text: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-02-10T11:34:25Z (GMT) No. of bitstreams: 5 2.pdf: 1355294 bytes, checksum: 9086c9df4915c340a9a61b61dd236b86 (MD5) license_url: 52 bytes, checksum: 3d480ae6c91e310daba2020f8787d6f9 (MD5) license_text: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) / Made available in DSpace on 2015-02-10T11:34:25Z (GMT). No. of bitstreams: 5 2.pdf: 1355294 bytes, checksum: 9086c9df4915c340a9a61b61dd236b86 (MD5) license_url: 52 bytes, checksum: 3d480ae6c91e310daba2020f8787d6f9 (MD5) license_text: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) Previous issue date: 2012 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) / Funda??o de Amparo ? Pesquisa do estado de Minas Gerais (FAPEMIG) / O objetivo do trabalho foi avaliar o efeito do uso de composto org?nico de ind?stria de fia??o e tecelagem sobre a qualidade do substrato e crescimento de esp?cies arb?reas do cerrado em uma cascalheira no munic?pio de Diamantina, MG. A disserta??o foi estruturada em quatro cap?tulos. O primeiro refere-se ? revis?o bibliogr?fica visando o entendimento dos conceitos que foram abordados no estudo. No segundo capitulo, a influ?ncia do composto no substrato foi avaliada por meio das altera??es nos atributos qu?micos (pH, mat?ria org?nica (MO), soma de bases (SB), CTC, satura??o por bases (V), f?sforo (P), pot?ssio (K), c?lcio (Ca2+), magn?sio (Mg2+), acidez troc?vel (Al3+), acidez potencial (H + Al) e satura??o por alum?nio (m)) e f?sicos (resist?ncia mec?nica a penetra??o (Rp) e granulometria) do substrato. Foi avaliada tamb?m a atividade microbiana: carbono da biomassa microbiana (CBM) respira??o microbiana (C-CO2) e quociente metab?lico (qCO2) ap?s aplica??o de cinco tratamentos: sem aplica??o de composto org?nico e diferentes concentra??es 0,0; 4,5; 9,0; 18,0 e 36,0 g dm-3 por cova. O delineamento foi sistem?tico tipo ?leque? sendo os tratamentos dispostos em tr?s blocos casualizados. A adi??o do composto proporcionou o aumento nos valores de pH, MO, SB, CTC, V e nutrientes (P, K, Ca2+ e Mg2+) e promoveu a redu??o de Al3+, H + Al e m. O substrato minerado apresentou valores elevados de Rp indicando a compacta??o na ?rea degradada pela extra??o de cascalho, mesmo ap?s a aplica??o do composto. A adi??o de doses crescentes do composto promoveu o aumento significativo de CBM e C-CO2 ao substrato minerado. O maior valor de qCO2 indicou efici?ncia da biomassa microbiana com a incorpora??o das menores doses do composto ao substrato quando comparado ao controle. O terceiro cap?tulo refere-se ao estudo do crescimento das esp?cies nativas Kielmeyera lathrophyton Saddi (Pau santo), Plathymenia reticulata Benth (Vinh?tico), Dalbergia miscolobium Benth (Jacarand? do cerrado) e Bowdichia virgilioides Kunth (Sucupira-preta) plantadas em delineamento sistem?tico tipo ?leque? submetidas a cinco tratamentos: sem aplica??o de composto org?nico e diferentes doses de composto 0,0; 4,5; 9,0; 18,0 e 36,0 g dm-3 por cova dispostos em tr?s blocos casualizados. Ap?s 12 meses, verificou-se que n?o houve diferen?a significativa entre os tratamentos para sobreviv?ncia e incremento em altura, di?metro e cobertura de copa para cada esp?cie. Ainda, de forma preliminar foi poss?vel determinar que a adi??o de 4,5 g dm-3 de composto na cova proporcionou maiores valores de incremento em altura, di?metro e cobertura de copa para Plathymenia reticulata e Bowdichia virgilioides. No quarto cap?tulo, foi realizado o plantio em linha de Chamaecrista debilis submetida a quatro tratamentos, 0,0; 30,0; 60,0 e 120,0 g dm-3 de composto como adubo por cova, dispostos em tr?s blocos casualizados. Os resultados indicaram que n?o houve diferen?a significativa entre as doses de composto aplicado para incremento em altura, di?metro e cobertura de copa. O maior valor de incremento em altura e cobertura de copa ocorreu sem a adi??o de composto de res?duo org?nico de ind?stria de fia??o e tecelagem e para di?metro com a aplica??o de 60,0 g dm-3, no entanto, ? necess?ria a realiza??o de avalia??es futuras. A taxa de sobreviv?ncia apresentou decr?scimo significativo com a aplica??o das maiores dosagens de composto org?nico. A esp?cie Chamaecrista debilis apresentou caracter?sticas importantes para recupera??o de ?rea degradada, como r?pido crescimento e produ??o de biomassa. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Ci?ncia Florestal, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2012. / ABSTRACT The objective of the work was to evaluate the effect of the use of composed of organic residue spinning industry and weaving on the quality of the substratum and growth of arboreal species of the thicket in a gravol-pit in the municipality of Diamantina, MG. The dissertation was structured in four chapters. Being the first, regarding the bibliographical revision seeking the understanding of the concepts and theoretical questions of what was borded in the study. In the second I chapter, the influence of the compound in the substratum was evaluated through the alterations in the chemical attributes (pH, organic matter (MO), sum of bases (SB), CTC, saturation for bases (V), match (P), potassium (K), calcium (Ca2+), magnesium (Mg2+), exchangeable acidity (Al3+), potential acidity (H + Al) and saturation for aluminum (m)) and physical (mechanical resistance the penetration (Rp) and texture) of the substratum. As well as in the microbial activity of the same: carbon of the microbial biomass (CBM) microbial breathing (C-CO2) and metabolic quotient (qCO2) after application of five treatments: without application of organic composition and different concentrations 0; 4,5; 9,0; 18,0 and 36,0 g dm-3 for hole. The delineation was systematic type "fan" being the treatments disposed in three blocks unexpected. The addition of the compound stimulated the increase in the pH values, MO, SB, CTC, V and nutritious (P, K, Ca2+ and Mg2+) and it promoted the reduction of Al3+, H + Al and m. The mined substratum presented high values of Rp indicating the compactation in the area degraded by the gravel extraction, even after the application of the composed. The addition of growing doses of the compound promoted the significant increase of CBM and C-CO2 to the mined substratum. The largest qCO2 value indicated efficiency of the microbial biomass with the incorporation of the smallest dosages of the compound to the substratum when compared to the control. The third chapter, refers to the study of the growth of the native species Kielmeyera lathrophyton Saddi (sacred Wood), Plathymenia reticulata Benth (Vinh?tico), Dalbergia miscolobium Benth (Jacaranda of the Thicket) and Bowdichia virgilioides Kunth (Sucupira-black) planted in delineation systematic type " fan " submitted to five treatments: without application of organic composition and different doses of compound 0,0; 4,5; 9,0; 18,0 and 36,0 g dm-3 for hole disposed in three blocks unexpected. After 12 months, it was verified that there was not significant difference among the treatments for survival and increment in height, diameter and top covering for each species. Still, in a preliminary way it was possible to determine that the addition of 45 g dm-3 of compound of organic residue of textile industry in the hole stimulated larger increment values in height, diameter and top covering for Plathymenia reticulata and Bowdichia virgilioides. In the fourth chapter, the planting was made in line of Chamaecrista debilis submitted to four treatments, 0,0; 30,0; 60,0 and 120,0 g dm-3 compound dm-3 as fertilizer for hole, disposed in three blocks inexpected. The results indicated that there was not significant difference among compound applied for increment in height and diameter. The largest increment value in height and diameter happened without the addition and with the application of 60,0 g dm-3 of compound of organic residue of textile industry, however it is necessary the accomplishment of future evaluations. The survival rate presented significant decrease with the application of the largest doses of organic compund. The species Chamaecrista debilis presented important characteristics for recovery of degraded area, as fast growth and biomass production.

Submitted by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-02-27T13:30:34Z No. of bitstreams: 5 37.pdf: 3780972 bytes, checksum: 25735fd7c2f94a2a52a7a996adefcb6b (MD5) license_url: 52 bytes, checksum: 3d480ae6c91e310daba2020f8787d6f9 (MD5) license_text: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-02-27T18:41:07Z (GMT) No. of bitstreams: 5 37.pdf: 3780972 bytes, checksum: 25735fd7c2f94a2a52a7a996adefcb6b (MD5) license_url: 52 bytes, checksum: 3d480ae6c91e310daba2020f8787d6f9 (MD5) license_text: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) / Made available in DSpace on 2015-02-27T18:41:07Z (GMT). No. of bitstreams: 5 37.pdf: 3780972 bytes, checksum: 25735fd7c2f94a2a52a7a996adefcb6b (MD5) license_url: 52 bytes, checksum: 3d480ae6c91e310daba2020f8787d6f9 (MD5) license_text: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) Previous issue date: 2011 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico (CNPq) / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (Capes) / Funda??o de Amparo ? Pesquisa do estado de Minas Gerais (FAPEMIG) / Avaliaram-se neste trabalho os efeitos da competi??o entre cultivares de milho, feij?o e mandioca e seis esp?cies de plantas daninhas no ac?mulo e na aloca??o de mat?ria seca e nutrientes pelas plantas; o potencial de algumas dessas esp?cies em reciclar nutrientes e a efici?ncia nutricional do feijoeiro. Para isso foi realizado um experimento para cada cultura com tr?s gen?tipos de milho, tr?s de feij?o e dois de mandioca, cultivados em competi??o com seis esp?cies de plantas daninhas, al?m dos tratamentos adicionais, correspondentes ?s cultivares de milho, feij?o e mandioca e ?s esp?cies daninhas ausentes de competi??o. O per?odo de conviv?ncia entre as cultivares de milho, feij?o e mandioca e as plantas daninhas foi de 60, 45 e 75 dias ap?s emerg?ncia das culturas, respectivamente. Para a cultura do milho e do feij?o foi avaliada a aloca??o de mat?ria seca e de nutrientes, inclusive entre os diferentes ?rg?os. Ainda para o feij?o foram estimados os coeficientes para efici?ncia de absor??o, transporte e utiliza??o dos nutrientes. Para a cultura da mandioca, foram determinadas, al?m da aloca??o de mat?ria seca, caracter?sticas morfofisiol?gicas ligadas ? ?rea foliar. A folha e o caule do milho foram os principais ?rg?os afetados negativamente pela competi??o, enquanto as ra?zes das esp?cies competidoras foram os ?rg?os mais prejudicados. Em competi??o com o feijoeiro, as folhas e o caule das esp?cies daninhas foram os ?rg?os mais prejudicados. Com mandioca, os componentes vegetativos das plantas daninhas sofreram reduzidas modifica??es, sem preju?zos quanto ? produ??o de mat?ria seca. As ra?zes do feijoeiro e de mandioca foram os principais ?rg?os afetados negativamente pela competi??o. Os gen?tipos AL 25 (milho) e IPR Colibri (feij?o) foram os que menos toleraram a competi??o. De forma contr?ria, as cultivares P?rola (feij?o) e Periquita (mandioca) demonstraram possuir as maiores habilidades competitivas. O milho mostrou-se sens?vel ? competi??o com B. brizantha e C. benghalensis e competitivo com B. plantaginea. Esta esp?cie, entretanto, mostrou-se altamente competitiva com feij?o e mandioca. Al?m disso, A. spinosus, em competi??o com o feijoeiro, demonstrou possuir a maior habilidade competitiva. A capacidade competitiva entre esp?cies vegetais, quando se trata do ac?mulo de mat?ria seca e relativo de nutrientes, n?o representou vantagem para as esp?cies de plantas daninhas, quando elas foram mantidas em conviv?ncia com o milho. O feijoeiro apresentou baixa capacidade de competi??o por nutrientes, particularmente N e P. A ?rea foliar espec?fica e a raz?o de ?rea foliar da mandioca n?o foram afetadas pela competi??o. B. brizantha e C. echinatus, livre da conviv?ncia com o milho, apresentaram elevado potencial em reciclar nutrientes. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Produ??o Vegetal, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2011. / ABSTRACT There were evaluated in this study the effects of competition between maize, beans and cassava, and six weed species in the accumulation and allocation of dry matter and nutrients by plants, the potential of some of these species in recycling nutrients and nutritional efficiency of bean. For this end an experiment was performed to each culture with three genotypes of maize, beans and two of three cassava grown in competition with six weeds species, apart from additional treatment corresponding to the maize, beans and cassava cultivars and weed species absent from the competition. The period of coexistence among maize, beans and cassava cultivars and the weeds was 60, 45 and 75 days after crop emergence, respectively. For the corn and beans there were evaluated allocation of dry matter and nutrients, including between different organs. Even for the beans there were estimated coefficients for uptake, transport and utilization of nutrients. For cassava plants there were determined, besides the allocation of dry matter, morphological and physiological characteristics related to leaf area. The leaf and stalk of corn were the main adversely affected organs by competition, while the roots of competing species were the most affected organs. In competition with the beans, leaves and stems of weeds were the most affected organs. With cassava, the weeds vegetative components suffered reduced modifications without losses in the production of dry matter. The roots of bean and cassava were the main adversely affected organs by competition. Genotypes AL 25 (maize) and IPR Colibri (beans) were the less tolerant in the competition. Conversely, the P?rola (beans) and Periquita (cassava) have showed the greatest competitive abilities. The corn was sensitive to competition with B. brizantha and C. benghalensis and competitive with B. plantaginea. This species, however, proved to be highly competitive with beans and cassava. Furthermore, A. spinosus, in competition with the bean, has demonstrated the greatest competitive ability. The competitive ability of plant species when it comes to the accumulation of dry matter and related nutrients did not represent the advantage to the weeds, where they were kept in close contact with the corn. The bean had low capacity to compete for nutrients, particularly N and P. The specific leaf area and leaf area ratio of cassava were not affected by competition. B. brizantha and C. echinatus, free of coexistence with the corn, had high potential to recycle nutrients.

Submitted by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-02-27T13:30:35Z No. of bitstreams: 5 44.pdf: 1038198 bytes, checksum: 1b7fba547c6be60930f8890b4ac36734 (MD5) license_url: 52 bytes, checksum: 3d480ae6c91e310daba2020f8787d6f9 (MD5) license_text: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-02-27T19:00:19Z (GMT) No. of bitstreams: 5 44.pdf: 1038198 bytes, checksum: 1b7fba547c6be60930f8890b4ac36734 (MD5) license_url: 52 bytes, checksum: 3d480ae6c91e310daba2020f8787d6f9 (MD5) license_text: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) / Made available in DSpace on 2015-02-27T19:00:19Z (GMT). No. of bitstreams: 5 44.pdf: 1038198 bytes, checksum: 1b7fba547c6be60930f8890b4ac36734 (MD5) license_url: 52 bytes, checksum: 3d480ae6c91e310daba2020f8787d6f9 (MD5) license_text: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) Previous issue date: 2012 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (Capes) / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico (CNPq) / Funda??o de Amparo ? Pesquisa do estado de Minas Gerais (FAPEMIG) / Embora haja grande variabilidade gen?tica para a couve, s?o poucos trabalhos no Brasil que vis?o obter informa??es para programas de melhoramento gen?tico nesta cultura. Assim, objetivou-se neste trabalho caracterizar 30 gen?tipos de couve a partir de caracteres morfo-agron?micos para estimar a diverg?ncia gen?tica, a import?ncia dos caracteres para a diverg?ncia, o desempenho agron?mico, os par?metros gen?ticos e a correla??o entre as caracter?sticas avaliadas. O experimento foi conduzido na Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM) utilizando o delineamento em blocos casualizados com quatro repeti??es constitu?dos por cinco indiv?duos, avaliando-se 30 gen?tipos de couve a partir de 44 caracter?sticas. Observaram-se gen?tipos com grande diverg?ncia gen?tica entre si, sendo os gen?tipos UFLA-6 e UFVJM-24 os mais divergentes dos demais, contudo, a maioria dos gen?tipos s?o similares, o que evidencia uma base gen?tica restrita. O comprimento do pec?olo, propor??o da proje??o alada, o tom de roxo da superf?cie adaxial da nervura prim?ria, formato da margem foliar, n?mero de folhas totais, formato da base da folha e di?metro da base do pec?olo foram as caracter?sticas mais discriminantes quanto ? diverg?ncia gen?tica em gen?tipos de couve. Verificou-se variabilidade gen?tica entre os gen?tipos, com predomin?ncia dos efeitos gen?ticos sobre os ambientais, indicando a possibilidade de se obter ganhos gen?ticos representativos no melhoramento. O comprimento da folha, largura da folha, di?metro do pec?olo, ?rea foliar, altura da planta, n?mero de brota??es e massa seca da folha se apresentaram como as caracter?sticas mais importantes no melhoramento gen?tico da couve. Os gen?tipos comerciais apresentaram caracter?sticas distintas dos demais gen?tipos. Verificou-se destaque para o gen?tipo UFLA-11, que se apresentou entre os gen?tipos com maior tamanho de folha e produ??o de folhas comerciais. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Produ??o Vegetal, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2013. / ABSTRACT Although there is large kale genetic variability there are few studies in Brazil aiming to obtain information of this culture for breeding programs purposes. Thus, this study aimed to characterize 30 kale genotypes from morpho-agronomic traits to estimate the genetic diversity, the importance of those traits for the divergence, the agronomic performance, the genetic parameters and the correlation between the evaluated characteristics. The experiment was conducted at the Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), using a randomized block design with four replicates consisting of five individuals, evaluating 30 genotypes of kale from 44 features. Genotypes with significant genetic divergence were observed, and the genotypes UFLA-6 and UFVJM -24 were the ones most divergent from the others, however, most genotypes are similar, which shows a narrow genetic base. The petiole length, projection winged proportion, the purple shade of adaxial surface of the primary beam, form of leaf margins, number of leaves, shape of leaf base and diameter of the base of the petiole were the characteristics that stood out for genetic divergence in kale genotypes. There was observed significant genetic variability among genotypes, with a predominance of genetic effects over the environmental ones, indicating the possibility of obtaining representative genetic gains in breeding. The leaf length, leaf width, petiole?s diameter, leaf area, plant height, shoot number and dry weight of the leaves are presented as the most important features in the kale genetic improvement. The commercial genotypes showed distinct characteristics from the other genotypes. It stands for genotype UFLA-11, which appeared between genotypes with biggest leaf size and commercial leaf production.