Data/hora: 13/06/2024 01:01:32

Provedor de dados: 	52	
País: 	Brazil	
Título: 	Variability in the germination of spores among and within natural populations of the endangered tree fern Dicksonia sellowiana Hook. (Xaxim)	
Autores: 	Gomes,Gabriela Schmitz; Randi,Áurea Maria; Puchalski,Ângelo; Santos,Daisy da Silva; Reis,Maurício Sedrez dos.	
Data: 	2006-01-01	
Ano: 	2006	
Palavras-chave: 	Arborescent fern; Dicksonia sellowiana; Spore germination; Intraspecific variability; Adaptative strategies.	
Resumo: 	The objective of this study was to analyze the existing variability in the germination of individuals' spores collected from two natural populations of Dicksonia sellowiana in southern Brazil. The largest intrapopulational variation was observed for the spores germination. These results suggested the existence of adaptative strategies that favored the gradual and continuous entrance of new individuals into the gametophytic population. The behavior of the individuals of the species within each population followed a similar pattern of initial development, in spite of conspicuous differences in the population structure. This showed a low differentiation between the populations and the existence of adaptative strategies which were common to both communities.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000100001	
Editor: 	Instituto de Tecnologia do Paraná - Tecpar	
Relação: 	10.1590/S1516-89132006000100001	
Formato: 	text/html	
Fonte: 	Brazilian Archives of Biology and Technology  v.49 n.1 2006	
Fonte: 	info:eu-repo/semantics/openAccess