Submitted by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-02-27T13:30:37Z No. of bitstreams: 5 63.pdf: 608811 bytes, checksum: 0b8fbde661633ab83210b52bdc12bee7 (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 2015-02-27T19:44:32Z (GMT) No. of bitstreams: 5 63.pdf: 608811 bytes, checksum: 0b8fbde661633ab83210b52bdc12bee7 (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 2015-02-27T19:44:32Z (GMT). No. of bitstreams: 5 63.pdf: 608811 bytes, checksum: 0b8fbde661633ab83210b52bdc12bee7 (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) / Objetivou-se, com este trabalho, selecionar gen?tipos de batata-doce com potencial de utiliza??o na alimenta??o animal. Foram avaliados a produtividade de ramas e efeito do emuchecimento sobre a composi??o bromatol?gica e a capacidade fermentativa das ramas de batata-doce, utilizando-se arranjo fatorial 7x2 (gen?tipos X ramas emurchecidas ou n?o), delineamento em blocos ao acaso, com 4 repeti??es. Os gen?tipos diferiram quanto ? PMS e teores de MS, FDN, FDA, CEL, LIG, CS, NIDA e CIN. O emurchecimento promoveu aumento nos teores de MS, PB, NIDA e componentes fibrosos e redu??o nos teores de carboidrato sol?vel, tornando as ramas emurchecidas de pior qualidade. N?o foi observado efeito do emurchecimento sobre a capacidade fermentativa das ramas in natura e emurchecidas. Os gen?tipos BD-25, BD-08 e BD-23, apresentaram produtividades superiores a 7,0 t ha-1, enquanto, o gen?tipo BD-43, apresentou baixos teores de FDA. Al?m dessas caracter?sticas, foram avaliadas a composi??o bromatol?gicas e a popula??o de microrganismos das silagens de batata-doce inoculadas ou n?o, por meio de arranjo fatorial 5x2 (gen?tipos x inoculante ou n?o). As silagens obtidas com os diferentes gen?tipos diferiram quanto aos teores de FDA, HEM e valores de pH. A utiliza??o de inoculante n?o promoveu altera??es na popula??o de microrganismos e nem nas caracter?sticas bromatol?gicas das silagens, exceto para o valor de pH. De maneira geral, a silagem produzida por todos os gen?tipos avaliados apresenta boa caracter?stica nutricional, entretanto, a silagem do gen?tipo BD-43 se destacou, apresentando baixos teores de FDA. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Produ??o Vegetal, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2012. / ABSTRACT The objective of this work was to select sweet potato genotypes with potential for use in animal feed. The vine?s yield and wilting effect on the chemical composition and fermentative capacity of the sweet potatoes? vines have been evaluated, using a 7x2 factorial arrangement (genotypes ?X? vines wilted or not), a randomized block design with four replications. Genotypes differed on the SMP and DM, NDF, ADF, CEL, LIG, CS, NIDA and CIN contents. Wilting promoted an increase in DM, CP, NIDA and fibrous components and reduction in levels of soluble carbohydrates, making wilted vines of poorer quality. There was not observed effect of wilting on the fermentative ability of in natura or wilted vines. Genotypes BD-25, BD-08 and BD-23, had yields higher than 7.0 t ha-1, while the genotype BD-43, showed low levels of ADF. Besides these features, There have been analyzed the chemical-bromatological composition of the microbial population of sweet potato silage inoculated or not by means of a factorial arrangement 5x2 (genotype ?x? with or without inoculation). The silages with different genotypes differ in ADF, HEM, and pH values. The use of inoculum did not change the microbial population and the characteristics or nutritive value of silages, except for the pH value. In general, the silage produced by all genotypes has good nutritional characteristics, however, the silage genotype BD-43 stood out, showing low levels of ADF.

Submitted by M?rden L?les (marden.inacio@ufvjm.edu.br) on 2016-07-22T18:02:16Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Celio_Roberto_Oliveira.pdf: 908844 bytes, checksum: 19ce8a2fa0261c7f9fa082a17eab4775 (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2016-07-25T17:30:10Z (GMT) No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Celio_Roberto_Oliveira.pdf: 908844 bytes, checksum: 19ce8a2fa0261c7f9fa082a17eab4775 (MD5) / Made available in DSpace on 2016-07-25T17:30:10Z (GMT). No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Celio_Roberto_Oliveira.pdf: 908844 bytes, checksum: 19ce8a2fa0261c7f9fa082a17eab4775 (MD5) Previous issue date: 2015 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) / Objetivou-se, com esse trabalho, analisar os dados referentes ?s despesas, receitas e ?ndices zoot?cnicos provenientes de uma fazenda no norte do estado de Minas Gerais durante os anos de 2002 a 2012, al?m de correlacionar os ?ndices econ?micos com os zoot?cnicos. Nesse per?odo, analisou-se tamb?m os principais indicadores t?cnicos e econ?micos que mais afetaram a atividade. A m?o de obra e a alimenta??o foram os componentes do custo operacional efetivo com maiores representatividades. Na an?lise da correla??o dos ?ndices t?cnicos com os econ?micos, a rela??o matriz por funcion?rio apresentou uma maior correla??o, indicando que quando maior for essa rela??o, consequentemente maior ser?o a lucratividade e rentabilidade I, que leva em considera??o a margem l?quida. No entanto, as receitas do leite, juntamente com as vendas de animais e subprodutos, permitiram, na m?dia dos 11 anos, uma margem l?quida positiva, indicando a perman?ncia do produtor no m?dio e longo prazo. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Zootecnia, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2015. / ABSTRACT The objective of this study was to analyze the details of the costs, revenues and performance parameters from a farm in the northern state of Minas Gerais during the years 2002-2012, thus analyzing the correlation of economic indicators with husbandry. During this period, it is also analyzed the main technical and economic indicators that affect the activity. The labor and food were the components of the effective operational cost with greater representativeness. In the correlation analysis of the technical indexes with the economic, the relationship matrix per employee showed a higher correlation, indicating that when higher this ratio thus increased profitability and profitability first, which takes into account the net margin. However, revenues from milk, along with sales of animals and by-products allowed on average 11 years, a positive net margin, indicating the producer of on average and long term.

Submitted by Alexandre Soares (alexandredesoares@yahoo.com.br) on 2016-07-15T14:46:30Z No. of bitstreams: 1 karin_frichis_do_nascimento.pdf: 1481669 bytes, checksum: c542b6f2d89d5f67694bf36d33eecd30 (MD5) / Rejected by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br), reason: on 2016-07-15T20:04:35Z (GMT) / Submitted by Alexandre Soares (alexandredesoares@yahoo.com.br) on 2016-07-15T20:19:47Z No. of bitstreams: 1 karin_frichis_do_nascimento.pdf: 1481669 bytes, checksum: c542b6f2d89d5f67694bf36d33eecd30 (MD5) / Rejected by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br), reason: rever: Refer?ncia ABNT Tipo: opem Acess Nota de disserta??o/Tese: colocar ano Palavra Chave: cada uma em um campo, sem pontua??o Ag?ncia Financiadora: Sempre por extenso e com a abrevia??o entre par?nteses no final on 2016-07-18T14:41:49Z (GMT) / Submitted by Alexandre Soares (alexandredesoares@yahoo.com.br) on 2016-07-19T12:58:18Z No. of bitstreams: 1 karin_frichis_do_nascimento.pdf: 1481669 bytes, checksum: c542b6f2d89d5f67694bf36d33eecd30 (MD5) / Rejected by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br), reason: Rever: Refer?ncia ABNT Tipo Nota de disserta??o/Tese Resumos Palavra Chave Ag?ncia Financiadora Seguir modelo: http://acervo.ufvjm.edu.br/jspui/handle/1/360 on 2016-07-21T15:22:35Z (GMT) / Submitted by Alexandre Soares (alexandredesoares@yahoo.com.br) on 2016-08-25T11:45:56Z No. of bitstreams: 1 karin_frichis_do_nascimento.pdf: 1481669 bytes, checksum: c542b6f2d89d5f67694bf36d33eecd30 (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2016-08-25T12:22:54Z (GMT) No. of bitstreams: 1 karin_frichis_do_nascimento.pdf: 1481669 bytes, checksum: c542b6f2d89d5f67694bf36d33eecd30 (MD5) / Made available in DSpace on 2016-08-25T12:22:54Z (GMT). No. of bitstreams: 1 karin_frichis_do_nascimento.pdf: 1481669 bytes, checksum: c542b6f2d89d5f67694bf36d33eecd30 (MD5) Previous issue date: 2015 / O trabalho teve como objetivo desenvolver procedimentos de micropropaga??o para a esp?cie pau-terra-liso (Qualea multiflora Mart.) a partir de sementes germinadas in vitro e avaliar a emerg?ncia, o crescimento inicial e a sobreviv?ncia de mudas em fun??o de diferentes substratos e ambientes, em condi??es de viveiro. No primeiro cap?tulo, as sementes de Qualea multiflora foram submetidas ? desinfesta??o com hipoclorito de s?dio em diferentes concentra??es e tempos de imers?o para a sua introdu??o in vitro. Foi avaliado o percentual de germina??o e contamina??o. Utilizando o melhor tratamento do experimento de desinfesta??o, foi instalado outro experimento para comparar as composi??es distintas de meio de cultura MS (Murashige & Skoog, 1962) e WPM (Lloyd & McCown, 1981) na germina??o de pau-terra-liso. Avaliou-se o percentual de germina??o e de pl?ntulas normais. Na fase de multiplica??o foram utilizados dois tipos de explantes (segmento nodal e segmento cotiledonar) retirados das pl?ntulas germinadas in vitro que foram inoculados em meio de cultura WPM. Este foi suplementado com BAP em concentra??es diferenciadas e ANA. A fase foi constitu?da pelo cultivo inicial e dois subcultivos. Avaliaram-se os n?meros de brota??es por explantes e a altura da maior brota??o. Constatou-se que a concentra??o de 5% de hipoclorito de s?dio durante 20 minutos de imers?o proporcionou os melhores resultados de desinfesta??o e germina??o in vitro. Observou-se que o tipo de meio de cultura e a concentra??o influenciam na germina??o e na qualidade das pl?ntulas de Qualea multiflora, logo, recomenda-se o meio WPM com 100% de sais e vitaminas para essa esp?cie. Os melhores resultados de multiplica??o foram alcan?ados utilizando o explante cotiledonar e a concentra??o de 0,6 mg L-? de BAP. No cap?tulo 2, os experimentos foram instalados em ambiente de casa de sombra e de casa de vegeta??o utilizando quatro tipos de substratos, sendo: 1) 100% substrato comercial Bioplant?, 2) 70% de vermiculita de granulometria m?dia + 30% de fibra de coco, 3) 70% de vermiculita + 30% Bioplant?, e 4) 40% de vermiculita + 30% de fibra de coco + 30% de Bioplant?. Realizaram-se avalia??es aos 60, 90, 120 e 150 dias para verificar a emerg?ncia, o crescimento em altura e di?metro e a sobreviv?ncia das mudas. No final do experimento, foram obtidos o peso da mat?ria seca da xii parte a?rea, o peso de mat?ria seca de ra?zes, o peso de mat?ria seca total e a rela??o peso de mat?ria seca da parte a?rea e peso de mat?ria seca das ra?zes. Em casa de vegeta??o a emerg?ncia de Qualea multiflora obteve os maiores percentuais com o uso do substrato VB (70% de vermiculita + 30% de Bioplant ?). N?o ocorreu diferen?a no crescimento em altura entre as mudas que estavam em casa de vegeta??o e em casa de sombra. Para o ambiente casa de sombra, n?o houve diferen?as significativas entre as caracter?sticas de mat?ria seca analisadas, em fun??o dos substratos. Com os dados de sobreviv?ncia nos dois ambientes, conclui-se que a Qualea multiflora ? de dif?cil propaga??o em condi??es de viveiro, sendo necess?rios mais estudos para a produ??o de mudas da esp?cie. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Ci?ncia Florestal, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2015. / The study aimed to develop micropropagation procedures for the ?pau-terra-liso? species (Qualea multiflora Mart.) from seeds germinated in vitro and evaluate the emergency, the initial growth and survival of seedlings for different substrates and environments in arboretum conditions. In the first chapter, the Qualea multiflora seeds were subjected to disinfection with sodium hypochlorite in different concentrations and immersion times for its introduction in vitro. The percentage of germination and contamination was evaluated. Using the best treatment of disinfestation experiment, it was installed another experiment to compare the different compositions of MS (Murashige and Skoog, 1962) and WPM (Lloyd & McCown, 1981) on the ?pau-terra-liso? germination. It was evaluated the percentage of germination and normal seedlings. In the multiplication phase it was used two types of explants (nodal segments and cotyledon segment) taken from seedlings germinated in vitro which were inoculated in WPM culture. This one was supplemented with ?BAP? and ?ANA? in different concentrations. The stage was set for the initial culture and two subcultures. It was evaluated the shoot numbers per explant and the height of the larger shoot. It was found that the concentration of 5% sodium hypochlorite for 20 minutes immersion gave the best results of disinfestation and in vitro germination. It was observed that the type of culture environment and the concentration influence the germination and quality of seedlings of Qualea multiflora, so it is recommended a WPM environment with 100% salts and vitamins for this species. The best multiplication results were achieved using cotyledon explants and concentration of 0.6 mg L-? of BAP. In Chapter 2, the experiments were conducted in shade house and greenhouse environment using four types of substrates, as follows: 1) 100% commercial substrate Bioplant?, 2) 70% of average grain size of vermiculite + 30% coconut fiber, 3) 70% of vermiculite + 30% Bioplant?, and 4) 40% of vermiculite and 30% coconut fiber + 30% Bioplant?. Evaluations were performed at 60, 90, 120 and 150 days to verify the emergence, growth in height and diameter and survival of seedlings. At the end of the experiment, it was obtained the dry matter weight of the aerial part, the dry matter weight of the roots, the entire dry matter weight and the relation between the weight of dry matter of aerial part and weight xiv of dry matter of the roots. In a greenhouse, the emergency Qualea multiflora obtained the highest percentages with the use of VB substrate (70% vermiculite and 30% of Bioplant ?). There was no difference in height growth among the seedlings that were in the greenhouse and in the shade house. To the environment shade house, there were no significant differences among the characteristics of the analyzed dry matter, according to the substrates. With the survival data in both environments, it is concluded that the Qualea multiflora is difficult to spread in arboretum conditions; further research is needed for the production of seedlings of the species.

?rea de concentra??o: Produ??o Vegetal. / Submitted by Jos? Henrique Henrique (jose.neves@ufvjm.edu.br) on 2017-01-04T12:33:11Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) eudes_neiva_junior.pdf: 834627 bytes, checksum: 465950af13386addbf2c02220b216604 (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2017-01-31T16:51:48Z (GMT) No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) eudes_neiva_junior.pdf: 834627 bytes, checksum: 465950af13386addbf2c02220b216604 (MD5) / Made available in DSpace on 2017-01-31T16:51:48Z (GMT). No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) eudes_neiva_junior.pdf: 834627 bytes, checksum: 465950af13386addbf2c02220b216604 (MD5) Previous issue date: 2016 / Funda??o de Amparo ? pesquisa do Estado de Minas Gerias (FAPEMIG) / A aduba??o do cafeeiro, com fertilizantes minerais, comp?e um dos principais custeadores da produ??o. Al?m disso, o uso intensivo desses insumos pode contribuir para a insustentabilidade da atividade. Nesse sentido, buscar alternativas ? aduba??o convencional ? t?tica indicada atualmente. Por esse motivo, buscou-se com o trabalho avaliar a produ??o de mudas e plantas jovens de cafeeiro quanto ? fertiliza??o com composto org?nico advindo de res?duo de ind?stria t?xtil e com fertilizantes organominerais. Foram realizados dois estudos, onde no primeiro avaliou-se o crescimento de mudas de caf? ar?bica em substrato contendo uma mistura de solo e res?duos da ind?stria t?xtil, nas doses (0, 4, 8, 16 e 32%). As plantas foram avaliadas quanto ao crescimento, ac?mulo de biomassa e teor de nutrientes, nas fases de produ??o de mudas e desenvolvimento das plantas jovens. No segundo experimento, as plantas foram avaliadas ap?s cultivo em diferentes substratos: sem fertiliza??o, aduba??o convencional, mineral, org?nica e tratamentos com dosagens de organominerais peletizados. Foram avaliados atributos de crescimento e ac?mulo de biomassa. Para o primeiro experimento, observou-se que a adi??o do composto org?nico produzido a partir de res?duo da ind?stria t?xtil, se mostrou inferior ao tratamento convencional (org?nico + mineral) para a produ??o de mudas e estabelecimento de plantas no campo. O aproveitamento de res?duos da ind?stria t?xtil na agricultura apresentou-se como uma solu??o tecnicamente vi?vel, devido sua elevada concentra??o de nutrientes minerais como pot?ssio, zinco e cobre, al?m da mat?ria org?nica. J? para o segundo experimento, a aduba??o convencional proporcionou plantas com maior crescimento e biomassa em rela??o ao organomineral. Quanto maior a concentra??o do organomineral, maiores s?o os benef?cios ?s plantas de caf?, dentro da faixa avaliada. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Produ??o Vegetal, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2016. / The fertilization of coffee with mineral fertilizers is a major component of the production cost. Moreover, the intensive use of these materials may contribute to the activity unsustainable. In this sense, seek alternatives to conventional fertilization is a currently indicated tactic. This study aimed to evaluate the production of seedlings and young coffee plants after fertilization with organic compost from textile industry waste and organo-mineral fertilizer. Two studies were performed. The first consisted of the cropping of Arabica coffee seedlings in substrate containing a mixture of soil and compost from textile industry waste as a function of concentration (4, 8, 16 and 32%). The plants were evaluated for growth, biomass accumulation and nutrient content at the stage of seedling production and development of young plants. In the second study, the plants were evaluated after cultivation on different substrates: without fertilization, conventional fertilization, mineral, organic and four organo-mineral treatments in pellets. Attributes of growth and biomass accumulation were evaluated. It was observed that the addition of organic compound, produced from textile industry waste, was inferior to conventional treatment for the production and establishment of coffee seedlings. The use of waste from the textile industry in agriculture appeared as a technically viable solution because of its high concentration of mineral nutrients such as potassium, zinc and copper, as well as organic matter. Conventional fertilization provided plants with higher growth and biomass in relation to organo-mineral. The higher the concentrations of the organo-mineral, the greater are the benefits for coffee plants within the measured range.

Submitted by Jos? Henrique Henrique (jose.neves@ufvjm.edu.br) on 2017-09-27T19:46:23Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) artur_amaral_nascimento.pdf: 1903978 bytes, checksum: ba8d36a75a72310e6e7df1f98b9e4705 (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2017-10-09T14:11:03Z (GMT) No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) artur_amaral_nascimento.pdf: 1903978 bytes, checksum: ba8d36a75a72310e6e7df1f98b9e4705 (MD5) / Made available in DSpace on 2017-10-09T14:11:03Z (GMT). No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) artur_amaral_nascimento.pdf: 1903978 bytes, checksum: ba8d36a75a72310e6e7df1f98b9e4705 (MD5) Previous issue date: 2017 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) / Objetivou-se com este trabalho avaliar o desempenho agron?mico, por meio da produ??o e valor nutritivo, e realizar an?lise de agrupamento com base nas caracter?sticas morfog?nicas e estruturais de h?bridos de Brachiaria decumbens previamente selecionados pela EMBRAPA Gado de Corte. Foram avaliados 15 h?bridos em delineamento em blocos ao acaso com tr?s repeti??es. Para avalia??o de produ??o e valor nutritivo, foram observadas diferen?as significativas para massa seca total, massa seca da folha, massa seca do colmo, rela??o l?mina:colmo, porcentagem de colmo, porcentagem de material morto, fibra em detergente ?cido, digestibilidade in vitro da mat?ria org?nica e lignina. Para a massa seca total e massa seca de folhas, observou-se maior m?dia para o h?brido R41. Em rela??o ? massa seca de colmo e porcentagem de colmo, o menor valor encontrado foi para o h?brido S16, enquanto o R41 apresentou resultado superior. Consequentemente, o h?brido S16 obteve maior rela??o l?mina:colmo e o R41 a menor. O h?brido S16 apresentou maiores quantidades de fibra em detergente ?cido e lignina. O pior resultado para massa seca total foi registrado para h?brido R147. Tamb?m foram encontradas diferen?as para porcentagem de material morto, no qual o h?brido R128 apresentou maior m?dia. Dentre todos os h?bridos avaliados, o S16 apresentou menor massa seca de colmo, menor porcentagem de colmo e maior rela??o l?mina:colmo, por?m maiores teores de lignina e fibra em detergente ?cido e, consequentemente, menor digestibilidade in vitro da mat?ria org?nica. Aten??o especial deve ser dada ao h?brido R23, que se destacou por apresentar elevada massa de folhas e baixo teor de lignina. Para a an?lise de agrupamento, verificou-se a forma??o de 5 grupos pelas dist?ncias euclidiana quadrada e m?dia e 8 grupos pela dist?ncia de Mahalanobis. Pode-se observar que o grupo 5 reuniu maior quantidade de caracter?sticas com potencial para o melhoramento, em ambas dist?ncias avaliadas. Este grupo apresentou elevados valores para rela??o l?mina:colmo, n?mero de folhas vivas, dura??o de vida das folhas e baixa taxa de senesc?ncia foliar. Entretanto, foi registrado baixo n?mero m?dio de perfilhos. O oposto pode ser observado para o grupo 4. O grupo 1 foi composto pela maioria dos h?bridos, foi poss?vel verificar que os mesmos apresentaram caracter?sticas medianas em rela??o aos demais grupos. As caracter?sticas taxa de alongamento de colmo, n?mero de folhas vivas, dura??o de vida das folhas, n?mero m?dio de perfilhos, taxa de senesc?ncia foliar e rela??o l?mina:colmo foram as que mais contribu?ram para a distin??o dos grupos morfog?nicos. O grupo morfog?nico 5 destacou-se pelo perfil com baixo alongamento de colmos, elevado n?mero de folhas vivas, longevidade e rela??o folha colmo, com baixo n?mero de perfilhos. O grupo 3 foi caracterizado por elevado perfilhamento e rela??o l?mina colmo. Dentre todos os grupos avaliados, o grupo 4 apresentou a maior taxa de senesc?ncia foliar e a menor dura??o de vida das folhas, que permite sugerir que estas plantas podem ser avaliadas em sistemas de pastejo mais intensivo. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Zootecnia, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2017. / The objective of this study was to evaluate the agronomic response of Brachiaria decumbens hybrids using production and nutritive value traits and to group this plants with the cluster analysis based on morphogenic data. The hybrids were previously selected in the EMBRAPA Beef Cattle Breeding Program. Were evaluated 15 hybrids in complete randomized block design with three replicates. In the agronomic evaluation, significant effect was observed to total, leaves and stems dry mass, leaf:stem ratio, stems and dead material percentage, acid detergent fiber, in vitro organic matter digestibility and lignin. To total and leaves dry mass the higher response was observed to the hybrid R41. To stems dry mass and percentage, the lower value was observed to S16, while R41 had the higher values. In consequence, the S16 plants had a substantially high leaf:stem ratio. The lower production of total dry mass was observed to R147 hybrid. Significant differences also were observed and the R128 plants had the higher value. In the range of hybrid evaluated. Should be emphasized that S16 plants had the lowest stems mass and percentage with the highest leaf:stem ratio, but its results showed high amounts of acid detergent fiber, lignin and low in vitro organic matter digestibility. Special attention also should be given to R23 plants which had a satisfactory leaves mass production with low amounts of lignin. In the clustering analysis, was verified the formation of 5 groups with the square and average Euclidian distance and 8 groups with the Mahalanobis distance. The group 5 (S16) had more brought together more morphogenic characteristics with potential to breeding. This group had elevated values to leaf:stem ratio, number of live leaves, leaf life spam and low senescence rate. Its number of tillers was low, an undesirable characteristic. The opposite was observed to group 4 (R86). The group 1 was composed by the majority of the hybrids and showed medium characteristics in relation to the other groups. The traits stem elongation rate, number of live leaves, leaf life spam, number of tillers, senescence rate and leaf:stem ratio was the characteristics which more contributed to the differentiation of the morphogenic groups. The morphogenic group 5 had an interesting profile with low stems elongation, high number of leaves, longevity of leaves, favorable leaf:stem ratio, but low number of tillers. The group 3 was characterized by elevated number of tillers and leaf: stem ratio. Among the groups obtained, the group 4 showed the highest senescence rate and lowest longevity, which allow suggest these plants need more frequent harvests.

Made available in DSpace on 2015-03-13T17:10:46Z (GMT). No. of bitstreams: 1 ManuelTAM_DISSERT.pdf: 4824195 bytes, checksum: 1311a1ea23d6c88b31943ac3a2b3fd49 (MD5) Previous issue date: 2011-02-25 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / The current work it is a research of the spatial circle of salt production and the uses implied by RN salt industry, specifically the city of Macau / RN. Part of the issue - how it gives the uses implied by the spatial distribution of salt in the current historical period, known by some geographers as technical-scientific-informational. The way taken to answer this research was through readings of researches already carried out, field research in government agencies, the use of photographs, questionnaires and interviews. The search for data on production salting, their handling and marketing was one of the methodology steps. The result of this research was the perception of the dynamic activity of salting and uses transmitted within the city of Macau / RN, and the state of Rio Grande do Norte. / O presente trabalho trata-se de uma pesquisa sobre o circuito espacial de produ??o de sal e os usos implicados pelas ind?strias salineiras potiguar, especificamente, do munic?pio de Macau/RN. Parte da quest?o - em que medida se d? os usos implicado pela espacializa??o do sal no per?odo hist?rico atual, conhecidos por alguns ge?grafos como t?cnico cient?fico informacional. O caminho trilhado para responder essa investiga??o foi por meio de leituras de trabalhos j? realizados, pesquisas de campo nas salinas e em ?rg?o p?blicos, a utiliza??o de fotografias, question?rios e entrevistas. A busca de dados sobre a produ??o salineira, sua movimenta??o e comercializa??o foi umas das etapas do caminho metodol?gico. O resultado dessa pesquisa foi ? percep??o da din?mica da atividade salineira e os usos imprimidos no territ?rio no munic?pio de Macau/RN, bem como no estado do Rio Grande do Norte no per?odo hist?rico atual.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-01-26T20:18:15Z No. of bitstreams: 1 RafaelPereiraDaSilva_DISSERT.pdf: 17725661 bytes, checksum: 485aaa2a5d5adede2e5af252341a1863 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-01-29T19:37:24Z (GMT) No. of bitstreams: 1 RafaelPereiraDaSilva_DISSERT.pdf: 17725661 bytes, checksum: 485aaa2a5d5adede2e5af252341a1863 (MD5) / Made available in DSpace on 2016-01-29T19:37:24Z (GMT). No. of bitstreams: 1 RafaelPereiraDaSilva_DISSERT.pdf: 17725661 bytes, checksum: 485aaa2a5d5adede2e5af252341a1863 (MD5) Previous issue date: 2014-03-25 / Programa Nacional de Coopera??o Acad?mica - PROCAD / Desde a d?cada de 1970, o Brasil tem passado por in?meras transforma??es em suas estruturas econ?micas e produtivas, as quais possuem rela??o simbi?tica com a organiza??o e din?mica do territ?rio brasileiro. Esse conjunto de transforma??es econ?micas, sociais e t?cnico-cient?ficas desenvolve-se no bojo da reestrutura??o produtiva do capital, processo que ocorre em escala global, mas que se efetiva com particularidades nos diferentes lugares. Partindo dessa premissa a presente pesquisa teve como objetivo principal analisar a reestrutura??o produtiva do setor de latic?nios no Rio Grande do Norte, destacando sua rela??o com o processo de produ??o/organiza??o do espa?o e seus reflexos sobre as rela??es sociais de produ??o. A metodologia adotada para elabora??o deste trabalho pautou-se na realiza??o de revis?o bibliogr?fica acerca dos processos de produ??o do espa?o e reestrutura??o produtiva, pesquisa documental sobre a din?mica do setor de latic?nios no Rio Grande do Norte, bem como sobre as instru??es normativas que regulamentam a produ??o de derivados l?cteos no Brasil, paralelamente efetuamos a coleta de dados secund?rios, junto a ?rg?os oficiais, como IBGE, EMATER e SINDLEITE. Outro importante recurso metodol?gico foi ? realiza??o da pesquisa de campo, a qual nos permitiu conhecer empiricamente as distintas realidades vivenciadas pelos agentes que atuam no sistema produtivo do leite no Rio Grande do Norte. As an?lises ora realizadas evidenciam que o processo de reestrutura??o produtiva do setor de latic?nios ? fomentado, sobremaneira, pelo Estado, que financia, incentiva e normatiza a produ??o de l?cteos no pa?s. No caso espec?fico do Rio Grande do Norte, este processo ? impulsionado pela cria??o do ?Programa do Leite?, o qual por meio da constitui??o de um mercado institucional contribui para o fortalecimento e expans?o das ind?strias, em detrimento do setor artesanal de processamento. Ainda assim os agricultores familiares seguem atuando na atividade, seja somente produzindo e comercializando leite in natura, fornecendo leite para unidades de processamento, intermediando a produ??o de seus pares ou beneficiando artesanalmente o leite nas queijeiras tradicionais presentes em todo o estado do Rio Grande do Norte. Os resultados obtidos revelam que ? complexa teia de rela??es de rela??es sociais de produ??o que se estabelecem no amago no amago da atividade laticinista no Rio Grande Norte, estas sendo sumariamente marcadas pelas rela??es de concorr?ncia e complementariedade, entre os setores industrial e artesanal de processamento do leite / Since the 1970s, Brazil has gone through several changes in its economic and productive structures, which have symbiotic relationship with the organization and dynamics of the Brazilian territory. This set of economic, social and technical-scientific transformations developed in the amid the productive capital restructuring, a process that occurs on a global scale, but that effective with particularities in different places. Adopting this presuposition the present research had as main objective analyze the productive restructuring of the dairy sector in Rio Grande do Norte, highlighting its relationship with production process / organization of space and its impact on the social relations of production. The adopted methodology to elaborate of this study was based on the achievement a bibliographic review with regard to proceedings of production of space and productive restructuring, document research about the dynamics of the dairy sector in Rio Grande do Norte, as well as on regulatory instructions governing the dairy production in Brazil, we achieve parallel secondary data collection, with official organs such as IBGE, EMATER and SINDLEITE. Another important methodological resource was the realization of the field research, which enabled us to empirically understand the distinct realities lived by agents acting on milk production system in Rio Grande do Norte. The analyzes performed nevertheless evidence that the restructuring process in the dairy sector is fomented, greatly by state,that finance, encourages and normatizes the production of milk in the country. In the specific case of Rio Grande do Norte, this process is boosted by the creation of "Programa do Leite," which by constituting of an institutional market, contributes to the strengthening and expansion of industries, the detriment of the artisanal processing sector. Nevertheless family farmers continue to act in the activity, be only producing and trading fresh milk, supplying milk to processing units, mediating the production of their peers or by the craft benefiting milk in traditional cheese factories presents in the entire state of Rio Grande do Norte. The results reveal that it is a complex web of social relations of production that are established at the heart of laticinista activity in the Rio Grande Norte, these are summarily marked by relations of competition and complementarity between industrial and artisanal processing of milk

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-02-22T23:12:48Z No. of bitstreams: 1 KatherineDeSousaCostaOliveira_DISSERT.pdf: 2881416 bytes, checksum: bd4e52464eb1ad102414c3e10ed536fc (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-02-25T23:50:08Z (GMT) No. of bitstreams: 1 KatherineDeSousaCostaOliveira_DISSERT.pdf: 2881416 bytes, checksum: bd4e52464eb1ad102414c3e10ed536fc (MD5) / Made available in DSpace on 2016-02-25T23:50:08Z (GMT). No. of bitstreams: 1 KatherineDeSousaCostaOliveira_DISSERT.pdf: 2881416 bytes, checksum: bd4e52464eb1ad102414c3e10ed536fc (MD5) Previous issue date: 2015-02-11 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico - CNPq / A proposta desta pesquisa est? apoiada na defini??o de Seguran?a Alimentar e Nutricional (SAN) estabelecida pela II Confer?ncia Nacional de SAN. Tomando como refer?ncia este conceito, o instrumento de pesquisa buscou analisar as estrat?gias e a??es relacionadas ? SAN, desenvolvidas pelos membros da Associa??o dos Produtores e Produtoras Org?nicas de Cear? Mirim, localizada no estado do Rio Grande do Norte, a partir dos aspectos relacionados ? alimenta??o das fam?lias, bem como, suas formas de acesso, quantidade e cultura alimentar. Visando responder as seguintes perguntas: as fam?lias benefici?rias da Associa??o dos Produtores e Produtoras Org?nicas de Cear? Mirim possuem estrat?gias que garantam sua SAN? Se sim, essas estrat?gias originam-se de pol?ticas p?blicas ou de a??es pr?prias? Essas estrat?gias incidem sobre a renda das fam?lias? Nos gastos com alimentos e acesso ? alimenta??o adequada? Como essas estrat?gias se articulam entre si e quais redes sociais elas formam? Na pesquisa, tamb?m foram abordados questionamentos que contemplaram a abertura de mercados pela declara??o como Organismos de Controle Social (OCS), agrega??o de valor, participa??o em feiras agroecol?gicas, buscando identificar e caracterizar se essas estrat?gias contribuem para a Seguran?a Alimentar e Nutricional destas fam?lias. Os dados aqui analisados foram obtidos a partir de entrevistas semiestruturadas, realizadas nos locais de produ??o de cada produtor e partem de uma abordagem qualitativa. Foram aplicados 21 question?rios aos agricultores familiares em sete projetos de assentamentos de Reforma Agr?ria: (Carlos Marighella, Nova Esperan?a II, Alian?a, Marcoalhado I, Santa ?gueda, Santa Luzia e Uni?o). A partir do estudo, concluiu-se que a maior parte das estrat?gias de SAN identificadas, resultaram do encadeamento de diferentes pol?ticas p?blicas que potencializaram as estrat?gias existentes e criaram novas, como no caso da produ??o org?nica que constitui a motiva??o principal, inclusive para a organiza??o do grupo pesquisado. Estas estrat?gias trouxeram melhorias na alimenta??o, provocaram mudan?as em seus h?bitos alimentares, em especial, na diversifica??o da produ??o de autoconsumo. Isto por sua vez, tem garantido maior autonomia alimentar e ampliado os canais de comercializa??o, seja por meio de feiras ou dos mercados institucionais. Verificou-se, tamb?m, que as rela??es de reciprocidade se ampliaram ap?s a produ??o org?nica e que estas s?o imprescind?veis na garantia de alimentos em momentos de dificuldades, al?m de contribu?rem para fomentar a pr?pria produ??o org?nica, atrav?s das trocas de insumos. / The proposition of this research is supported by the definition of Food Safety and Nutrition (FSN), established by the II FSN National Conference. Taking this concept as reference, the research instrument aimed to analyze strategies and actions related to FSN, developed by members of Cear? Mirim Organic Producers Association, located in Rio Grande do Norte state (Brazil), from aspects related to family feeding, as well as means of access, quantity and food culture. It was aimed to answer the following questions: Do the families benefited from Cear? Mirim Organic Producers Association have strategies that assure their FSN? If so, do these strategies originate from public policies or own actions? Do these strategies focus on family revenue? In expenses with food and proper feeding? How do these strategies articulate together and which social networks do they form? In this research, there were also approached questionings which comprise market opening through the declaration of the products as Organization of Social Control (OSC), aggregate value and participation in agroecological fairs, aiming to identify and characterize if these strategies contribute for Food Safety and Nutrition of these families. The data here analyzed were obtained from semi-structured interviews, conducted in the production sites of each farmer, and have a qualitative approach. 21 questionnaires were applied to the family farmers, in seven projects of agrarian reform settlements (Carlos Marighella, Nova Esperan?a II, Alian?a, Marcoalhado I, Santa ?gueda, Santa Luzia and Uni?o). From this study, it was concluded that most of FSN strategies result from a series of distinct public policies, which potentiate the existing strategies and create new ones, such as in the case of organic production, which is the main motivation, even for the organization of the studied group. These strategies brought improvements in feeding and caused changes in eating habits, especially in the diversification of production for own consumption. This, on the other hand, is assuring greater food autonomy and increasing marketing channels, through fairs or institutional markets. It was also verified that reciprocity relations increased after the organic production, and they are indispensable to assure food in difficult times, also contributing to incentive organic production itself, through supplies exchange.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-04-01T00:16:56Z No. of bitstreams: 1 DeniaDeFatimaCruzSckaff_DISSERT.pdf: 3376834 bytes, checksum: dc96dd947612f5406b655f80c06939ec (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-04-06T00:16:50Z (GMT) No. of bitstreams: 1 DeniaDeFatimaCruzSckaff_DISSERT.pdf: 3376834 bytes, checksum: dc96dd947612f5406b655f80c06939ec (MD5) / Made available in DSpace on 2016-04-06T00:16:50Z (GMT). No. of bitstreams: 1 DeniaDeFatimaCruzSckaff_DISSERT.pdf: 3376834 bytes, checksum: dc96dd947612f5406b655f80c06939ec (MD5) Previous issue date: 2014-06-06 / O audiovisual ? um instrumento de comunica??o midi?tica que exerce papel importante para a compreens?o cultural, social e pol?tica da sociedade. Buscando identificar a contribui??o do audiovisual ? cultura potiguar, esta pesquisa procura compreender o processo de produ??o audiovisual no Rio Grande do Norte. Para isso, foi feito um estudo de caso das atividades do Coletivo Caminhos, Comunica??o & Cultura ? CC&C ? grupo que realiza a??es culturais no interior do estado desde 2006, tendo 76% de suas atividades relacionadas a produ??o audiovisual, destas, 47% s?o oficinas de v?deo. Acompanhou-se a oficina de v?deo do projeto Semeando Cultura realizado pelo grupo no munic?pio de Venha Ver/RN, em janeiro de 2013, e analisou-se todo o processo do projeto, da idealiza??o at? sua realiza??o na pr?tica. Estruturou-se a pesquisa metodologicamente realizando uma an?lise hist?rico-descritiva, de m?todo hipot?tico-dedutivo, por meio da observa??o participante. Para o desenvolvimento conceitual e te?rico abordou-se a Sociabilidade, a Etnografia e o Ativismo midi?tico. O resultado da investiga??o revelou que a??es de produtores audiovisuais independentes est?o promovendo mudan?as nas pr?ticas audiovisuais potiguares, contribuindo para o acesso ? cultura audiovisual, em regi?es onde esses conhecimentos s?o restritos ou inexistentes, em face ?s poucas a??es de pol?ticas p?blicas voltadas ? cultura. Frente ao cen?rio constado na pesquisa prop?e-se como progn?stico da investiga??o a cria??o do Observat?rio do Audiovisual Potiguar, uma ferramenta comunicacional que se configura como um espa?o de informa??es, reflex?es, debates, contatos e divulga??o das a??es e produ??es audiovisuais do estado. / The audiovisual media is an instrument of communication that plays an important role in the cultural, social and political understanding of society. This survey was done intenting to identify the contribution of the audiovisual media to the culture in the Rio Grande do Norte and trying to understand the process of producing audiovisual in this state. To reach the aim, a case report was done regard the activities of Caminhos, Comunica??o & Cultura ? CC&C ? a group that conducts cultural activities in the state since 2006 and has 76% of its activities related to audiovisual production, in which 47% of them, are video workshops. The video workshop project "Sowing Culture", held by the group in the city of Venha Ver/RN in January 2013, was observed and analised from its conception to its realization. The research pursued to reveal how the initiatives of independent producers, such as the CC&C group, can promote the access to audiovisual culture in regions where such knowledge is limited or nonexistent, due to the poor state policies related to the culture. Methodologically, the research was structured by performing a historical and descriptive analysis of hypothetical-deductive method through participant observation. For the conceptual and theoretical development, it was addressed the Sociability, Ethnography and media activism. The research proved that the independent audiovisual producers are promoting changes in the RN audiovisual practices. Before the background featured in the research, it is proposed a prognostic from researching to opening the RN Audiovisual Observatory, a communicational tool projected as space of sharing information, thinking, speaking, contacting and promoting the audiovisual productions of the state.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-06-23T22:05:00Z No. of bitstreams: 1 LayaraCampeloDosReis_DISSERT.pdf: 2271838 bytes, checksum: c4d28430acbd6f35763abf08b3d4b899 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-06-29T18:30:11Z (GMT) No. of bitstreams: 1 LayaraCampeloDosReis_DISSERT.pdf: 2271838 bytes, checksum: c4d28430acbd6f35763abf08b3d4b899 (MD5) / Made available in DSpace on 2016-06-29T18:30:11Z (GMT). No. of bitstreams: 1 LayaraCampeloDosReis_DISSERT.pdf: 2271838 bytes, checksum: c4d28430acbd6f35763abf08b3d4b899 (MD5) Previous issue date: 2015-11-13 / Nos ?ltimos anos o munic?pio de Bom Jesus (PI) passou a figurar como uma regi?o de grande potencial para produ??o de soja (Glycine max (L.) Merrill) em larga escala. Esta cultura agr?cola ganha espa?o nos cerrados bonjesuenses apresentando, no decorrer dos anos, crescimento exponencial de ?reas cultivadas. Entretanto, a produtividade n?o acompanha esse mesmo ritmo de crescimento, passando por per?odos de oscila??es, ainda que exista dispon?vel um grande suporte de tecnologias, materiais gen?ticos de maior potencial produtivo, uso de t?cnicas de manejo e corre??o do solo e da crescente qualifica??o dos produtores rurais. Portanto, no presente estudo, considerou-se que as condi??es clim?ticas exercem uma a??o limitante ?s m?ximas produtividades de soja neste munic?pio. Diante desse contexto, a pesquisa visa analisar poss?veis tend?ncias em vari?veis meteorol?gicas que possam influenciar na produtividade da soja no munic?pio de Bom Jesus. Para tanto utilizaram-se diferentes conjuntos de dados meteorol?gicos: i) dados di?rios de dois per?odos (1984-2014) e (1974-2014), ambos obtidos a partir do banco de dados do Instituto Nacional de Meteorologia (INMET); ii) Normais Climatol?gicas do Brasil de 1961-1990 do INMET; iii) dados de produ??o agr?cola municipal da cultura da soja dos anos/safras de 1997/1998 a 2012/2013 obtidos no banco de dados de Produ??o Agr?cola Municipal (PAM) do Instituto Brasileiro de Geografia e Estat?stica (IBGE). Nas an?lises foram realizados c?lculos para o c?mputo das Normais Climatol?gicas (1984-2014) e aplica??es estat?sticas. Dentre os m?todos estat?sticos foram realizados: i) o teste de Wilcoxon - pareado para avaliar as diferen?as entre as climatologias dos per?odos de 1961-90 e 1984-14; ii) o teste de tend?ncia (Mann-Kendall), no intuito de analisar a tend?ncia de varia??o dos dados agrometeorol?gicos (precipita??o, temperatura m?xima, temperatura m?nima e amplitude diurna da temperatura - DTR); iii) an?lise multivariada (an?lise de Cluster) pelo m?todo de Ward e o teste de correla??o de Spearman (rs), para identificar a rela??o entre os dados agrometeorol?gicos e dados de variabilidade anual da produtividade da soja. Para a aplica??o dos testes o estudo adotou n?vel de signific?ncia estat?stica de 5%. Os resultados apresentados indicam que a sazonalidade da climatologia de 1984-2014 apresentou mudan?as com rela??o ? climatologia passada em todas as vari?veis analisadas, exceto na insola??o e na precipita??o. Quanto ? variabilidade dos elementos agrometeorol?gicos, observaram-se tend?ncia negativa significativa para a precipita??o no m?s de outubro e positiva significativa no m?s de dezembro, as quais constatam altera??es nos padr?es do clima local, demonstrado pelo atraso da retomada do per?odo chuvoso, que poder? ser considerado na condu??o de medidas de planejamento para a defini??o da ?poca de semeadura do cultivo da soja. Foi poss?vel identificar tamb?m tend?ncias positivas com signific?ncias estat?sticas, na temperatura m?xima, para todos os meses que fazem parte do ciclo da soja (novembro - abril), que por sua vez tender? a provocar efeitos adversos sobre a fisiologia da cultura, e consequentemente impactos no rendimento final. Notou-se uma correla??o positiva significativa entre a produtividade de soja e a precipita??o no m?s de mar?o, apontando que per?odos de estiagens neste m?s s?o prejudiciais para o desenvolvimento da cultura da soja. Quanto ? correla??o entre as vari?veis (temperatura m?xima, m?nima e DTR) e a variabilidade anual da produtividade da soja, o resultado do teste n?o mostrou correla??o com signific?ncia estat?stica para o per?odo analisado, visto que considerando a faixa recomendada para o desenvolvimento do cultivo, estas vari?veis clim?ticas n?o s?o fatores limitantes na produtividade final da soja no munic?pio de Bom Jesus (PI). Assim, espera-se que este estudo possa contribuir para a proposi??o de medidas estrat?gias de planejamento, que levam em conta o papel da variabilidade clim?tica sobre a produtividade final da cultura da soja. / The climate is still main responsible for the variations soybean productivity (Glycine max (L.) Merrill), exerting a limiting action on these agricultural systems. The bomjesuense cerrado, this culture has proved, over the years, an increase of cultivated areas, however, productivity does not keep the same pace, going through periods of oscillations. Thus, although the crop is added to high technology, culture has great vulnerability to climatic adversities. Thus, the present study aims to analyze possible trends in meteorological variables, which can influence the soybean yield in Bom Jesus. For this purpose, different datasets were used, as follows: i) two periods of daily data (1984-2014 and 1974-2014), both obtained from the National Meteorological Institute (INMET); ii) climate normals from 1961-1990 as defined by INMET; iii) local agricultural production data of soybean-year (1997/1998 to 2012/2013) obtained from the Municipal Agricultural Production (PAM) dataset, which is management by Brazilian Institute of Geography and Statistics (IBGE). The analysis procedures included calculations of climate normals for 1984 to 2014 period and some statistical applications, as follows: i) the Wilcoxon test, used to evaluate differences between climate normals (1961 to 1990 and 1984 to 2014); ii) the Mann-Kendall nonparametric test, in order to analyze the linear trend of agrometeorological variables (rainfall, maximum temperature, minimum temperature and diurnal range of temperature; iii) cluster analysis by Ward method and the Spearman correlation test (rs) to identify the relationship between agrometeorological variable and soybean annual productivity. We adopted a statistical significance level of 5%. The results indicate changes in seasonality of the 1984-2014 climatology with respect to past climatology for all variables analyzed, except for insolation and precipitation. However, the monthly analysis of precipitation indicate negative trend during October and positive trend in December, causing a delay in start of rainy season. If this trend is persistent this result must be considered in futures definitions of the soybean crop sowing date over the region studied. With Mann-Kendall test was possible to identify positive trends with statistical significance in maximum temperature for all month forming part of soybean cycle (from November to April), which in turn tends to cause adverse effects on crop physiology, and consequently impacts on the final yield. Was identified a significant positive correlation between soybean yield and precipitation observed in March, thus precipitation deficit in this month is harmful to the soybean crop development. No statistically significant correlation was identified among maximum temperature, minimum temperature, and DTR with annual soybean productivity due these range of meteorological variables are not limiting factors in the final soybean yield in Bom Jesus (PI). It is expected that this study will contribute to propose planning strategies considering the role of climate variability on soybean crop final yield.