Micronutrient absorption by banana explants in vitro

• Autor(a) principal: Diniz, Josefa Diva Nogueira
• Data de Publicação: 1999
• Outros Autores: Hernandez, Fernando Felipe Ferreyra, Gonçalvez, Antonio Natal, Torres, Antonio Carlos
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Pesquisa Agropecuária Brasileira (Online)
• Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/5352
• topic: dry weight; Musa; peso de matéria seca; Musa

The absorption of the micronutrients B, Cu, Fe, Mn and Zn by banana (Musa sp.) cultivar "Prata Anã" explants on the basic medium of Murashige & Skoog supplemented with BAP (3.5 mg/L) and sucrose (30 g/L) were evaluated at 0, 10, 20, 30, 40, 50 and 60 days after the inoculation. The experiment was arranged on a completely randomized design with three replications. Concentration of the micronutrients in the medium and in dry matter of the whole propagule and in the rhizome, pseudostem and leaves was also evaluated. Absorption of Mn was approximately constant during all the period of the experiment, while the other micronutrients had their higher absorption observed on the first 20 days. At the end of the experiment concentrations of B, Zn, Mn and Cu in the medium were 52, 61, 77 and 78%, respectively. These results point out that it is possible to reduce the concentration of these micronutrients on the basic medium MS for banana explants culture.