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Previous issue date: 2017-08-28 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) / A aroeira (Myracrodruon urundeuva Fr. All.) pertencente ? fam?lia Anacardiaceae, ocorre nos biomas caatinga e cerrado. Amplamente explorada devido a sua madeira pesada e praticamente imputresc?vel, e por causa das suas propriedades medicinais. Por esses motivos, a aroeira est? na lista oficial de esp?cies da flora brasileira amea?adas de extin??o, na classe vulner?vel. Portanto, ? uma esp?cie que deve-se dar ?nfase a estudos sobre a percep??o ambiental das pessoas e a defini??o dos protocolos e estrat?gias que favore?am a produ??o de mudas com qualidade. Este trabalho tem tr?s cap?tulos, nos quais os objetivos foram: testar a germina??o da aroeira em diferentes substratos comuns, testar a produ??o de calos de aroeira em diferentes concentra??es do horm?nio fitoregulador 2,4D afim de criar um protocolo para a produ??o em grande escala de mudas e avaliar a percep??o ambiental dos moradores do munic?pio de Bara?na, bem como captar conhecimentos tradicionais sobre a Myracrodruon urundeuva. No primeiro cap?tulo as sementes foram cultivadas nos substratos areia; argila; areia misturada com argila, 50% de cada; areia com h?mus, 50% de cada; argila com h?mus, 50% de cada; e argila com areia e h?mus, 25% de areia, 25% de argila e 50% de h?mus, foram feitas observa??es e regas di?rias durante 15 dias, para determinar a porcentagem, o tempo m?dio e a velocidade m?dia de germina??o. A esp?cie apresentou os piores resultados, em todos os par?metros, com os substratos que possu?am h?mus, por?m, nos substratos areia+argila e areia apresentou os melhores resultados. No segundo cap?tulo foram usados segmentos foliares de 1cm ? e quatro concentra??es diferentes do regulador de crescimento 2,4D, que foram: 2,32, 4,64, 6,96 e 9,28?M. Os resultados mostraram que a melhor concentra??o para o desenvolvimento dos calos foi de 4,64 ?M e que quase todas os explantes oxidaram, confirmando a necessidade de um meio com agentes antioxidantes. No terceiro cap?tulo foram realizadas 101 entrevistas semiestruturadas de 25 a 28 de fevereiro de 2017, atrav?s de question?rios abordando os seguintes aspectos: a) dados pessoais, b) Dados socioecon?micos, c) informa??es sobre o conhecimento, d) sobre o uso medicinal e e) sobre uso da madeira. Constatou-se que grande parte dos entrevistados acham a Caatinga importante em algum n?vel; mais da metade dos entrevistados notaram que a aroeira est? diminuindo em algum grau; as propriedades medicinais da aroeira s?o conhecidas pelos entrevistados, principalmente pela sua a??o anti-inflamat?ria; muitos ainda usam a aroeira para tratar doen?as com extratos feitos da casca; e pouco se registrou de uso madeireiro. Com os resultados gerados por essa pesquisa foram definidos protocolos de cultivo ex vitro quanto in vitro, al?m de confirmar a grande popularidade da aroeira, o que a torna ainda mais vulner?vel. Nesse sentido, estudos sobre o cultivo e percep??o ambiental de esp?cies florestais amea?adas podem ser precursores de modelos e mecanismos, seja para o manejo, bem como para a recupera??o de suas comunidades. / Aroeira (Myracrodruon urundeuva Fr. All.), belongs to the Anacardiaceae family, occurs in the caatinga and cerrado biomes. Widely exploited due to its heavy wood and practically imputrescible, and because of its medicinal properties. For these reasons, Aroeira is on the official list of endangered species of Brazilian flora in the vulnerable class. Therefore, emphasis should be given to studies on the definition of protocols and strategies that favor the production of seedlings with quality. This study had three chapters, in which the objectives were: to test the germination of aroeira in different common substrates, to test the production of aroeira calli in different concentrations of the 2,4D phytoregulator hormone in order to create a protocol for the large scale production of And to evaluate the environmental perception of the residents of Bara?na - RN, as well as capture their traditional knowledge about Myracrodruon urundeuva. In the first chapter the seeds were grown on the sand substrates; clay; Sand mixed with clay, 50% each; Sand with humus, 50% of each; Clay with humus, 50% each; Sand and humus clay, 25% sand, 25% clay and 50% humus, observations and watering were done daily for 15 days to calculate the percentage, the mean time and the average speed of germination. The species had the worst results in all parameters with the substrates that had humus, the sand + clay and sand substrates presented the best results. In the second chapter, leaf segments of 1cm? and four different concentrations of the 2,4D hormone were used, which were: 2.32 ?M, 4.64 ?M, 6.96 ?M and 9.28 ?M. The results showed that the best concentration for callus development was 4.64 ?M and that almost all the explants oxidized, confirming the need for a medium with antioxidant agents. In the third chapter, 101 semi-structured interviews were conducted from February 25 to 28, 2017, through questionnaires addressing the following aspects: a) personal data, b) socioeconomic data, c) information about knowledge, d) about medical use and e) on wood use. It was verified that most of the interviewees consider the Caatinga important in some level; More than half of the interviewees noticed that the aroeira is diminishing to some degree; The medicinal properties of aroeira are widely known by those interviewed, mainly for its anti-inflammatory action; Many still use aroeira to treat diseases with extracts made from the bark; And little was recorded for timber use. The results generated by this research defined ex vitro and in vitro culture protocols, in addition to confirming the great popularity of aroeira, which makes it even more vulnerable. In this sense, studies on the cultivation and environmental perception of endangered forest species can be precursors of models and mechanisms, both for the management, as well as for the recovery of their natural populations.
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.ufrn.br:123456789/24592 |
| Date | 28 August 2017 |
| Creators | Lima, Larisa Maria da Silva |
| Contributors | 46609954453, Costa Filho, Jos? Hamilton da, 01242139362, Melo, Natoniel Franklin de, 41889665487, Aloufa, Magdi Ahmed Ibrahim |
| Publisher | PROGRAMA REGIONAL DE P?S-GRADUA??O EM DESENVOLVIMENTO E MEIO AMBIENTE - PRODEMA, UFRN, Brasil |
| 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 UFRN, instname:Universidade Federal do Rio Grande do Norte, instacron:UFRN |
| Rights | info:eu-repo/semantics/openAccess |
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