Data/hora: 05/06/2024 03:03:29

Provedor de dados: 	91	
País: 	Brazil	
Título: 	Seed germination of Bowdichia virgilioides Kunth, under water stress	
Autores: 	Silva,Lígia M. de M.; Aguiar,Ivor B. de; Rodrigues,Teresinha de J.D.	
Data: 	2001-04-01	
Ano: 	2001	
Palavras-chave: 	Forest seed; Physiological quality; Osmotic potential; Polyethyleneglycol.	
Resumo: 	Bowdichia virgilioides (Leguminosae-Papilionoideae) is a native tree species in Brazil characteristic of the savannah vegetation. Seeds of this species were submitted to different osmotic potentials induced by polyethyleneglycol (PEG-6000) in order to verify their resistance to drought conditions. Seeds were previously scarified with sulphuric acid and incubated at 25 ºC with an eight hours photoperiod, at osmotic potentials of 0.0, -0.1, -0.3, -0.5, -0.7, -0.9 and -1.1 MPa. It was found that water stress resistance limit ranged from -0.7 to -0.9 MPa. Significant reduction in germination velocity from -0.3 MPa, and final percentage of germination from -0.5 MPa in relation to control, were observed. Germination under drastic conditions of water stress was inhibited, but was restored with an increase of water availability.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662001000100021	
Editor: 	Departamento de Engenharia Agrícola  - UFCG	
Relação: 	10.1590/S1415-43662001000100021	
Formato: 	text/html	
Fonte: 	Revista Brasileira de Engenharia Agrícola e Ambiental  v.5 n.1 2001	
Fonte: 	info:eu-repo/semantics/openAccess