Data/hora: 09/06/2024 04:32:25

Provedor de dados: 	42	
País: 	Brazil	
Título: 	Maturation of Eugenia pyriformis seeds under different hydric and thermal conditions	
Autores: 	Lamarca,Edmir V.; Prataviera,Juliana S.; Borges,Igor F.; Delgado,Liliana F.; Teixeira,Carmen C.; Camargo,Marcelo B.P. de; Faria,José M.R.; Barbedo,Claudio J.	
Data: 	2013-03-01	
Ano: 	2013	
Palavras-chave: 	Dispersal; Development; Degree-day; Rainfall; Recalcitrants seeds.	
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.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652013000100223	
Editor: 	Academia Brasileira de Ciências	
Relação: 	10.1590/S0001-37652013005000006	
Formato: 	text/html	
Fonte: 	Anais da Academia Brasileira de Ciências  v.85 n.1 2013	
Fonte: 	info:eu-repo/semantics/openAccess