Use este identificador para citar ou linkar para este item: http://repositorio.ufla.br/jspui/handle/1/38627
Título: Maturation of Eugenia pyriformis seeds under different hydric and thermal conditions
Palavras-chave: Sementes recalcitrantes
Eugenia pyriformis
Sementes - Maturação
Recalcitrants seeds
Seeds - Maturation
Data do documento: 2013
Editor: Academia Brasileira de Ciências
Citação: LAMARCA, E. V. et al. Maturation of Eugenia pyriformis seeds under different hydric and thermal conditions. Anais da Academia Brasileira de Ciências, Rio de Janeiro, v. 85, n. 1, p. 223-233, 2013.
Resumo: This study aims to analyze the maturation and dispersal of Eugenia pyriformis Cambess. seeds produced in different years, and the influence of variation in thermal and hydric environment on seed physical and physiological characteristics at dispersal. Fruits at different developmental stages were harvested in the city of São Paulo between 2003 and 2010, as well as in the cities of Campinas and Lavras, in 2009 and 2010 and analyzed for size and color. The seeds were extracted from the fruits and their dry mass, water content, germination and vigor were assessed. Results showed that seed maturation is unsynchronized to the maturation of the fruit, taking 45 days on average (430 growing degree-days), longer in rainy times or lower temperatures. Seeds with higher physiological quality were produced in rainy years and when the temperature range was larger. We concluded therefore that hydric and thermal environmental variations during development influence the maturation of Eugenia pyriformis seeds and are able to determine the formation cycle and the final seed quality.
URI: http://repositorio.ufla.br/jspui/handle/1/38627
Aparece nas coleções:DCF - Artigos publicados em periódicos

Arquivos associados a este item:
Arquivo Descrição TamanhoFormato 
ARTIGO_Maturation of Eugenia pyriformis seeds under different hydric and thermal conditions.pdf1,35 MBAdobe PDFVisualizar/Abrir


Este item está licenciada sob uma Licença Creative Commons Creative Commons