Concentrações de reguladores vegetais no estiolamento in vitro de ananás do campo

• Autor(a) principal: Dias, Márcia Maria
• Data de Publicação: 2011
• Outros Autores: Pasqual, Moacir, Araújo, Aparecida Gomes, Santos, Verônica Andrade dos, Oliveira, Antônio Clarete de, Rodrigues, Vantuil Antônio
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Repositório Institucional da UFLA
• Texto Completo: http://repositorio.ufla.br/jspui/handle/1/38220
• topic: Micropropagação; Abacaxizeiro ornamental; Bromeliaceae; Citocinina; Giberelina; Micropropagation; Ornamental pineapple; Cytokinin; Gibberellin

The ornamental pineaple Ananas comosus (L.) Merr. var. ananassoides (Baker) Coppens & F. Leal, also denominated of pineapple of the field or it crowns green it is a plant still little explored economically in spite of the ornamental potential as " cut flower ". Studies about the propagation of the pineapple of the field are scarce, in this sense, the micropropagation of this can represent a progress for the commercial production of the species. The objective of the work was to evaluate the different combinations of 6-BAP and GA3 in the multiplication and development of the explants of Ananas comosus (L.) Merr. var. ananassoides (Baker) Coppens & F. Leal. The randomized experimental desing was used, with a factorial scheme 4x4 consisting of four concentrations of 6-BAP (0; 0,25; 0,5 and 1,0 mg.L-1) and four concentrations of GA3 (0; 0,5; 1,0 and 2,0 mg.L-1) combined. According to the results, the interaction 1,0 mg.L-1 of 6-BAP and 0,5 mg.L-1 of GA3 provided larger sprouts number. The addition of 6-BAP propitiated a reduction of the bud length and of the roots number of explants. The addition of GA3 caused a larger length of the aerial part and it didn't influence in the rooting of the explants.