Submitted by Jos? Henrique Henrique (jose.neves@ufvjm.edu.br) on 2018-05-22T20:56:29Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) barbara_maria_cruz_bento.pdf: 1640285 bytes, checksum: 25447d41b250514b826ff4b7ea8e2c53 (MD5) / Made available in DSpace on 2018-05-22T20:56:29Z (GMT). No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) barbara_maria_cruz_bento.pdf: 1640285 bytes, checksum: 25447d41b250514b826ff4b7ea8e2c53 (MD5) Previous issue date: 2017 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) / A alface (Lactuca sativa L.) ? sens?vel ?s condi??es clim?ticas, principalmente ? alta temperatura, modificando a sua arquitetura, peso, qualidade e, principalmente a produ??o. A a??o da temperatura do ar ? determinante nas mudan?as dos est?dios de desenvolvimento dos vegetais, interferindo tanto na emiss?o de folhas quanto na mudan?a dos est?dios fenol?gicos, al?m de provocar altera??es morfol?gicas e fisiol?gicas. A faixa de temperatura de 15 a 24 ?C ? considerada adequada ao desenvolvimento da alface, entretanto, quando cultivada em regi?es de temperatura e luminosidade elevadas, esta hortali?a pode deixar de desenvolver todo o seu potencial gen?tico. A aduba??o pode ser utilizada para incrementar a produtividade na cultura da alface. No entanto, os efeitos das condi??es clim?ticas juntamente com a aduba??o e suas influ?ncias no crescimento cultura requerem maior aprofundamento no estudo, pois, o ambiente de cultivo, juntamente com a aduba??o e o componente gen?tico da planta, s?o os grandes respons?veis pelas mudan?as no crescimento, flora??o e senesc?ncia. Assim, objetivou-se verificar o comportamento e padr?o de crescimento de plantas de alface cv. Regina sob diferentes temperaturas e estrat?gias de aduba??es. O estudo foi conduzido em sala de crescimento, em DIC com esquema fatorial 4x6, sendo: quatro temperaturas m?dias constantes para o cultivo da alface (12 ?C; 20 ?C; 23 ?C e 28 ?C) e seis aduba??es (controle, convencional mineral, Geofert - organomineral peletizado, Organomineral UFVJM, esterco de curral curtido e cama de codorna compostada). As plantas foram avaliadas quanto ao crescimento, p?s-colheita e perda de massa fresca em cada ciclo. Nas condi??es do experimento, os tratamentos cama de codorna, esterco de curral e organomineral Geofert promoveram maior crescimento ?s plantas de alface cv. Regina, sendo que essas estrat?gias de aduba??o podem permitir melhor desempenho produtivo das plantas at? mesmo em temperaturas de estresse. Os adubos org?nicos e Geofert s?o alternativas eficientes para o crescimento de plantas de alface cv. Regina e conferem ?s plantas menor perda de massa fresca, quando comparado ? aduba??o mineral convencional. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Produ??o Vegetal, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2017. / Lettuce (Lactuca sativa L.) is sensitive to the climatic conditions, mainly to the high temperature, changing its architecture, weight, quality and mainly the production. The action of air temperature is determinant in the changes of the stages of development of the plants, interfering as much in the emission of leaves as in the change of the phenological stages, besides causing morphological and physiological alterations. The temperature ranges of 15 to 24 ? C is considered adequate for the development of lettuce, however, when cultivated in regions of high temperature and luminosity, may fail to develop its full genetic potential. Fertilization can be used to increase productivity in lettuce culture. However, the effects of climatic conditions together with fertilization and its influences on the growth of culture require further study, because the growth environment together with the fertilization and genetic component of the plant are responsible for the changes in growth, flowering and senescence. Thus, objective was to verify the behavior and growth pattern of lettuce cv. Regina under different temperatures and fertilization strategies. The study was conducted in a growth room adopting a completely randomized design (CRD) in 4x6 factorial scheme with four constant average temperatures for lettuce cultivation (12, 20, 23, and 28?C) and six fertilizations (control, conventional mineral, Geofert - pelletized organic mineral, organic mineral from UFVJM, corral manure and composted quail bed). The plants were evaluated for growth, postharvest and loss of fresh mass in each cycle. Under the conditions of the experiment, treatments composed of composted quail bed, corral manure and Geofert promoted higher growth to lettuce plants cv. Regina being that these strategies of fertilization can allow better productive performance of the plants even in temperatures of stress. Organic fertilizers and Geofert are efficient alternatives for the growth of lettuce plants cv. Regina and gives the plants less fresh weight loss when compared to conventional mineral fertilization.

?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.