Data/hora: 07/06/2024 16:51:53

Provedor de dados: 	94	
País: 	Brazil	
Título: 	Residual effect of growth regulators in etiolation and regeneration of in vitro pineapple plants	
Autores: 	Souza,Fernanda Vidigal Duarte; Canto,Ana Maria Mascarenhas Eloy; Souza,Antônio da Silva; Costa,Maria Angélica Pereira de Carvalho.	
Data: 	2010-06-01	
Ano: 	2010	
Palavras-chave: 	Ananas comosus var. comosus; In vitro culture; Plant regulators; Nodal segments; Germplasm conservation; Micropropagation.	
Resumo: 	This work aimed to evaluate the influence of naphthaleneacetic acid (NAA) and gibberellic acid (GA3) plant regulators in in vitro etiolation and subsequent regeneration of the PE x SC-60 pineapple hybrid. Nodal segments of in vitro plants with approximately 5-7 cm height were incubated in basic MS culture medium supplemented with 0.0; 0.5 and 1.0 mg L-1 of naphthaleneacetic acid (NAA) in combination with gibberellic acid (GA3) in concentrations of 0.0; 0.5 and 1.0 mg L-1, and maintained at 27 ºC under dark condition. Evaluations were carried out at 90 and 180 days after incubation period. The best results for length of etiolated stems were obtained with 1.0 mg L-1 of NAA. In the experiment followed by the regeneration, stems with 3 cm from the etiolation treatment, were cultivated in proliferation medium and the number of regenerated plants per treatment was evaluated at 60 days of cultivation. The treatment that promoted the best etiolation of plants also promoted the worst regeneration rates, demonstrating the residual effect of the auxin used in the previous step in the regeneration of plants of the pineapple hybrid evaluated.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452010000200035	
Editor: 	Sociedade Brasileira de Fruticultura	
Relação: 	10.1590/S0100-29452010005000075	
Formato: 	text/html	
Fonte: 	Revista Brasileira de Fruticultura  v.32 n.2 2010	
Fonte: 	info:eu-repo/semantics/openAccess