Data/hora: 12/06/2024 12:30:52

Provedor de dados: | 64
País: | Brazil
Título: | Effects of cytokinins on in vitro mineral accumulation and bud development in Annona glabra L.
Autores: | Oliveira,Lenaldo Muniz de; Paiva,Renato; Santana,José Raniere Ferreira de; Pereira,Flávia Dionísio; Nogueira,Raírys Cravo; Silva,Luciano Coutinho.
Data: | 2010-12-01
Ano: | 2010
Palavras-chave: | Growth regulators; Annonaceae; Mineral nutrition.
Resumo: | Annona glabra is a tropical species that has significant agronomic potential in terms of furnishing fruits for in natura consumption and for the production of phyto-pharmaceuticals. In vitro cultivation has been considered the most promising form of propagation for this species, although large scale utilization of this technique is currently limited by high rates of leaf abscission, reduced rates of explant multiplication and slow bud growth. The present work evaluated the effects of different cytokinins on mineral accumulation in shoots of A. glabra cultivated in vitro, and their effects on growth and survival of these plants. Buds of A. glabra were cultivated in Wood Plant Medium (WPM) in the presence of 6-benzilaminopurine (BAP), thidiazuron (TDZ), kinetin (KIN), and zeatin (ZEA). KIN and BAP use resulted in the greatest growth, largest accumulation of dry mass and leaf area development, as well as the greatest survival rate during in vitro cultivation of this species. All cytokinins tested stimulated large accumulations of nitrogen and boron in shoots, but diminished levels of calcium as compared to controls.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542010000600012
Editor: | Editora da Universidade Federal de Lavras
Relação: | 10.1590/S1413-70542010000600012
Formato: | text/html
Fonte: | Ciência e Agrotecnologia  v.34 n.6 2010
Fonte: | info:eu-repo/semantics/openAccess