Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/863746
Unidade da Embrapa/Coleção:: Embrapa Mandioca e Fruticultura - Artigo em periódico indexado (ALICE)
Data do documento: 6-Out-2010
Tipo do Material: Artigo em periódico indexado (ALICE)
Autoria: SOUZA, F. V. D.
CANTO, A. M. M. E.
SOUZA, A. da S.
COSTA, M. A. P. de C.
Informaçães Adicionais: FERNANDA VIDIGAL DUARTE SOUZA, CNPMF; Ana Maria Mascarenhas Eloy Canto, UFRB; ANTONIO DA SILVA SOUZA, CNPMF; Maria Angélica Pereira de Carvalho Costa, UFRB.
Título: Residual effect of growth regulators in etiolation and regeneration of in vitro pineapple plants.
Fonte/Imprenta: Revista Brasileira de Fruticultura, Jaboticabal, v. 32, n. 2, p. 612-617, jun. 2010.
Idioma: en
Notas: Disponível em:<http://www.scielo.br/pdf/rbf/v32n2/aop07910.pdf>. Acesso em 28 out.2010.
Palavras-chave: Ananas comosus var. comosus
In vitro
Plant regulators
Nodal segments
Germplasm conservation
Micropropagation
Germoplasma
Micropropagação
Melhoramento genetico vegetal
Conteúdo: 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 ± 1oC 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.
Ano de Publicação: 2010
ISSN: 0100-2945
Aparece nas coleções:Artigo em periódico indexado (CNPMF)

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