Biologia reprodutiva de macaúba: floração, polinizadores, frutificação e conservação de pólen

• Ano de defesa: 2013
• Autor(a) principal: Brito, Ana Carla
• Orientador(a): Motoike, Sérgio Yoshimitsu
• Banca de defesa: Grossi, José Antônio Saraiva , Favaro, Simone Palma , Junqueira, Nilton Tadeu Vilela
• Tipo de documento: Tese
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Viçosa
• Programa de Pós-Graduação: Doutorado em Genética e Melhoramento
• Departamento: Genética animal; Genética molecular e de microrganismos; Genética quantitativa; Genética vegetal; Me
• País: BR
• Palavras-chave em Português: Fenologia; Xenogamia; Armazenamento
• Palavras-chave em Inglês: Phenology; Crossbreeding; Storage
• Área do conhecimento CNPq: CNPQ::CIENCIAS AGRARIAS::AGRONOMIA::FITOTECNIA::MELHORAMENTO VEGETAL
• Link de acesso: http://locus.ufv.br/handle/123456789/1373

Acrocomia aculeata (Jacq.) Lodd. ex Mart. is a palm tree popularly known as macaw palm, whose fruits have a high oil content and can be used in biodiesel production, and its co-products are utilized in many types of industries. To better to explore the potential of this species is necessary domesticate it for the future development of cultivars. This study was conducted in an wild population in Acaiaca-MG, Brazil, at 2010 to 2012, seeking to elucidate aspects of reproductive biology, with emphasis on morphology, floral biology, flowering phenology, pollinators, and the establish a protocol for the conservation of pollen in order to support breeding programs so that features of interest are achieved and obtained interest genotypes, enabling the deployment of commercial crops and rational use of this oleaginous. The results indicated that the presented macaw palm flowering in the rainy season; inflorescence open at night and in all of them protogyny occurs; pollen abundance and high viability; the the mixed mating system, self-compatibility, but xenogamy predominantly; the pollinator are coleopter Curculionidae and Nitidulidae family. In conservation tests, pollen of macaw palm desiccation was tolerance performed by silica gel under vacuum terms, and was more efficient than lyophilization. The temperatures of 4º C and -20°C associated or not desiccation were the most effective in the pollen conservation evaluated period. The possibility of pollen conservation, as showed in this study, allows the exchange of germplasm for macaw palm breeding programs.