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Previous issue date: 2016-01-29 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) / A mangabeira ? uma frut?fera nativa do nordeste brasileiro e apresenta grande import?ncia socioecon?mica, ambiental e cultural. Apesar disso, vem sofrendo forte press?o negativa devido ? expans?o imobili?ria, desmatamento, pr?ticas de monoculturas e a explora??o extrativista n?o sustent?vel em seus campos nativos, o que tem ocasionado ? eros?o gen?tica da esp?cie, amea?ando-a de extin??o. Diante disso, ? iminente a necessidade de estudos que contribuam para a conserva??o da esp?cie tanto in situ como ex situ. Nesse contexto, o objetivo deste trabalho foi contribuir para o aprimoramento de estrat?gias de conserva??o da Mangabeira utilizando como ferramenta a biotecnologia vegetal e a percep??o ambiental. Como objetivos espec?ficos, buscou-se testar se a biotecnologia vegetal mensurada na utiliza??o de reguladores de crescimento, especificamente, BAP, IBA e ANA, pode contribuir para a conserva??o atrav?s da multiplica??o in vitro da mangabeira. E sob a perspectiva social, avaliar se a percep??o do extrator de mangaba ? afetada por caracter?sticas socioecon?micas (renda, idade, sexo, experi?ncia e escolaridade) e ambientais (regi?o que vive o extrator) e investigar se os extratores vegetais percebem a varia??o de abund?ncia apenas de esp?cies comerciais. Mediante a aplica??o de entrevistas semiestruturadas, foi constatado que os extrativistas vegetais das comunidades de Timb? e Boa ?gua, do munic?pio de N?sia Floresta- RN possuem conhecimentos sobre a esp?cie e que percebem a diminui??o desses recursos, bem como reconhecem a necessidade de conserva??o da esp?cie. Em rela??o ? utiliza??o da biotecnologia vegetal, foram obtidos resultados promissores para ? multiplica??o in vitro da esp?cie com a forma??o de brota??es bem desenvolvidas, permitindo uma excelente via de propaga??o, tendo em vista as dificuldades de reprodu??o natural da esp?cie. / The mangabeira (Hancornia speciosa Gomes) is a native fruit species from Brazil wich has a
broad geographic distribution that goes from the Cerrado to the coastal plains of the
Northeast, being well known for socio-economic, environmental and cultural importance. In
the last decade the intensification of human actions has contributed to the significant
reduction in their native fields, thus, to their genetic diversity. This justifies the imminent
need for alternatives that enable its recovery in natural environment and the conservation of
its genotype. Concomitantly, there is no effective awareness by the extractive communities
concerning the need for environmental conservation of the resources and sustainable
management. Accordingly, the study of environmental perception can contribute to the
conservation of mangabeira in their occurrence areas because knowledge of extractive
communities can enable a better understanding of sustainability and human activities
operating in the region. Moreover, in view of the vulnerability of the species in the field, the
plant biotechnology has become a promising alternative to solve this process and for species
which are hard for natural propagation. Vegetative propagation in vitro, by enabling the
production of plants on a large scale and plant quality, has helped in the conservation of many
woody species. In this context, the objective was to contribute to the improvement of
strategies for the conservation of H. speciosa using plant biotechnology as a tool and the
environmental awareness. As specific objectives, we sought to test whether the plant
biotechnology measured on the use of growth regulators (specifically: BAP, AIB and ANA),
can contribute to the conservation by in vitro multiplication of mangabeira. And, for the social
perspective, identify the socioeconomic and environmental awareness of plant extraction of
two communities in N?sia Floresta - RN about the mangabeira, investigating whether the plant
extractivists realize the change in abundance of commercial species only. For this, semistructured
interviews were applied to the vegetable extractivists communities of Timb? and
Boa ?gua, in the city of N?sia Floresta - RN. Regarding the knowledge of local communities
to the use of the mangabeira is evident the preference and appreciation of its fruit as a native
fruit to the region. The research showed that communities have knowledge regarding the
species and that they perceive the reduction of their resources. Communities report the need
for investments to facilitate the processing and marketing of fruits and their life quality.
Regarding the use of plant biotechnology, it brought favorable results for the production of
seedlings of the species, with the formation of more vigorous shoots.
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.ufrn.br:123456789/21505 |
| Date | 29 January 2016 |
| Creators | Oliveira, K?via Soares de |
| Contributors | 46609954453, Lichston, Juliana Espada, 26948390889, Santana, Marlucia Cruz de, 26467097572, 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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