Data/hora: 03/06/2024 05:26:15

Provedor de dados: 	Ciência Rural	
País: 	Brazil	
Título: 	Seed viability of Dimorphandra gardneriana subject to water stress in different temperatures	
Autores: 	Ursulino,Marina Matias; Costa,Maria do Perpétuo Socorro Damaceno; Medeiros,José George Ferreira; Alves,Edna Ursulino; Araujo,Paulo Costa; Bruno,Riselane de Lucena Alcantara; Araujo,Luciana Rodrigues de.	
Data: 	2016-12-01	
Ano: 	2016	
Palavras-chave: 	Faveira; Water restriction; Forest species.	
Resumo: 	ABSTRACT: The forest species Dimorphandra gardneriana Tul. is widely used for various pharmacological products, yet few basic studies have been undertaken to understand their ecological and physiological attributes under stress conditions. The goal of this research was to evaluate the seed germination and vigor when subjected to different osmotic potentials and temperatures. Water restriction was simulated with polyethylene glycol 6000 solution (PEG 6000) with osmotic potentials of 0; -0,2; -0,4; -0,6; -0,8, and -1,0MPa at temperatures of 20, 25, 30, and 35°C. The effect of the treatment was determined by the germination and vigor (germination speed index, length and phytomass of dry shoot and roots) of the seeds, in an entirely random design with four repetitions. From-0, 4MPa it occurs a drastic reduction in germination and vigor of seeds although these factors were less affected at temperature of 25°C up to -0, 2MPa.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016001202090	
Editor: 	Universidade Federal de Santa Maria	
Relação: 	10.1590/0103-8478cr20120792	
Formato: 	text/html	
Fonte: 	Ciência Rural  v.46 n.12 2016	
Fonte: 	info:eu-repo/semantics/openAccess