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Previous issue date: 2012 / 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) / O objetivo deste trabalho foi avaliar a influ?ncia de ambientes, substratos, prog?nies e proced?ncias na emerg?ncia e crescimento de pl?ntulas de pequi. O experimento foi conduzido nos ambientes casa de vegeta??o, casa de sombra e c?u aberto, onde foram avaliadas diferentes matrizes dentro dos substratos S1(terra de subsolo de textura m?dia), S2(70% de vermiculita e 30% de moinha de carv?o) e S3 (30% de moinha de carv?o, 50 % de vermiculita e 20% de areia). Os dados de germina??o foram analisados pelo teste de qui-quadrado para independ?ncia, enquanto as vari?veis de di?metro e altura de pl?ntulas pela an?lise de vari?ncia. Os resultados foram significativos (p<1%) para prog?nies, substratos e ambientes em rela??o ? taxa de emerg?ncia. O substrato S1 e o ambiente c?u aberto obtiveram os maiores percentuais de emerg?ncia de pl?ntulas (7,54% e 7,59%), j? o substrato S1 dentro da casa de sombra foi a intera??o que proporcionou o melhor resultado (12,61%). A emerg?ncia se correlacionou positivamente com a densidade e temperatura dos substratos e negativamente com sua capacidade de reten??o de ?gua, al?m de ser inversamente proporcional ? press?o de vapor d??gua do ambiente. O substrato S3 e a casa de vegeta??o contribu?ram isoladamente para as maiores m?dias de di?metro do coleto e altura de pl?ntulas, sendo sua intera??o significativamente superior ?s demais combina??es de substratos e ambientes para a vari?vel altura. / 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 this study was to evaluate the influence of environments, substrates, progenies and provenances in the emergence and seedling growth of pequi. The experiment was conducted in a greenhouse environment, the shade and open air, where they were evaluated in different matrices of the substrates S1 (subsoil texture average), S2 (70% vermiculite and 30% charcoal powder) and S3 (30% of charcoal powder, vermiculite 50% and 20% sand). The germination data were analyzed by chi-square test for independence, while the variables of diameter and height of seedlings by analysis of variance. The results were significant (p <1%) for progeny, substrates and environments in relation to the rate of emergence. The substrate S1 open and the environment had the highest percentage of seedling emergence (7.54% and 7.59%), since the substrate S1 within the shade was the interaction that yielded better results (12.61%) . The emergence of positively correlated to the density and temperature of the substrate and negatively with their ability to retain water, and is inversely proportional to the pressure of water vapor from the environment. The substrate S3 and greenhouse alone contributed to the higher average stem diameter and height of seedlings, and their interaction significantly superior to other combinations of substrates and environments for the variable height.
| Identifer | oai:union.ndltd.org:IBICT/oai:acervo.ufvjm.edu.br/jspui:1/496 |
| Date | 27 February 2012 |
| Creators | Lima, Vin?cius Orlandi Barbosa |
| Contributors | Santana, Reynaldo Campos, Gon?alves, Janaina Fernandes, Fernandes, Jos? Sebasti?o Cunha, Titon, Miranda, Lopes, Paulo Sergio Nascimento, Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Santana, Reynaldo Campos |
| Publisher | UFVJM |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Source | reponame:Repositório Institucional da UFVJM, instname:Universidade Federal dos Vales do Jequitinhonha e Mucuri, instacron:UFVJM |
| Rights | A concess?o da licen?a deste item refere-se ao ? termo de autoriza??o impresso assinado pelo autor, assim como na licen?a Creative Commons, com as seguintes condi??es: Na qualidade de titular dos direitos de autor da publica??o, autorizo a Universidade Federal dos Vales do Jequitinhonha e Mucuri e o IBICT a disponibilizar por meio de seus reposit?rios, sem ressarcimento dos direitos autorais, de acordo com a Lei n? 9610/98, o texto integral da obra disponibilizada, conforme permiss?es assinaladas, para fins de leitura, impress?o e/ou download, a t?tulo de divulga??o da produ??o cient?fica brasileira, e preserva??o, a partir desta data., info:eu-repo/semantics/openAccess |
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