Use este identificador para citar ou linkar para este item: http://repositorio.ufla.br/jspui/handle/1/10973
Título: Comportamento fisiológico e bioquímico de sementes de girassol submetidas ao armazenamento convencional e câmara fria
Título(s) alternativo(s): Physiological behaviour and sunflower seeds of biochemical submitted to conventional storage and cold chamber
Autores: Von Pinho, Édila Vilela de Resende
Santos, Heloisa Oliveira dos
Vieira, Antonio Rodrigues
Santos, Heloisa Oliveira dos
Palavras-chave: Híbridos
Ambientes e armazenamento
Girassol
Hybrids
Storage environments
Sunflower
Data do documento: 31-Mar-2016
Editor: Universidade Federal de Lavras
Citação: FERREIRA, H. M. F. Comportamento fisiológico e bioquímico de sementes de girassol submetidas ao armazenamento convencional e câmara fria. 2016. 61 p. Dissertação (Mestrado em Biotecnologia Vegetal)-Universidade Federal de Lavras, Lavras, 2016.
Resumo: The sunflower cultivation is strategic mainly as crop rotation on offseason periods and for the development of industrial oil. The culture is important in some regions, especially in the Midwest, and the use of high quality seeds is essential for ensuring high productivity. Mainly due to biochemical features, there is the need to store the seeds under favorable conditions in order to maintain their quality until sowing. This study included sunflower seeds of two commercial hybrids, Helio 250 and Helio 251, which were subjected to storage in both environments. Seeds were stored for a period of eight months in the conventional storage and freezer. Seed quality was evaluated at 0, 2, 4, 6 and 8 months of storage, through germination, speed of germination index, accelerated aging, emergency test (IVE), emergence index and water content. It was assessed the expression of proteins by electrophoresis and chemical composition of the seeds in each storage period. The freezer storage is more efficient for the conservation of sunflower seed quality. Changes in sunflower seed quality can be detected by enzyme analysis, except for the glutathione peroxidase. High content of oleic fatty acid does not influence the quality of sunflower seeds. The proportion of fatty acids is changed after storage.
URI: http://repositorio.ufla.br/jspui/handle/1/10973
Aparece nas coleções:Biotecnologia Vegetal - Mestrado (Dissertações)



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