Data/hora: 10/06/2024 03:55:46

Biblioteca(s): | Embrapa Cerrados.
Data corrente: | 31/03/1999
Data da última atualização: | 31/03/1999
Autoria: | GEOGHEGAN, I. E.; SPRENT, J. I.
Título: | Aluminum and nutrient concentrations in species native to Central Brazil.
Ano de publicação: | 1996
Fonte/Imprenta: | Communications in Soil Science and Plant Analyses, New York, v.27, n.18-20, p.2925-2934, 1996.
Idioma: | Inglês
Conteúdo: | Forty species from eight angiosperm families occurring in the Cerrado and neighboring regions of Bahia and Minas Gerais in Brasil were examined for aluminum (A1) content. Twenty species from four families (Leguminosae, Compositae, Rubiaceae, and Melastomataceae) were found to have leaf A1 contents above 1000 mg/kg dry wt. This constitutes the first record of nodulating legumes accumulating A1, most notably certain species of the Caesalpinioideae genus Chamaecrista. The amount of A1 in the leaves of the accumulating species ranged from 16, 390 mg/kg dry wt in Chamaecrista repens to 1012 mg/kg dry wet in Chamaecrista viscosa. These native plants on virgin soil had no visual adverse effects from the high concentration of A1, in fact, they seemed to have an efficient mechanism for absorbing all nutrients from the soil and growing and flourishing at levels considered very deficient for other crop species. The percentage of other foliar cations was not significantly different between A1 accumulating or non-accumulating species.
Palavras-Chave: | Aluminium; Indigenous organisms; Planta nativa.
Thesagro: | Alumínio; Cerrado; Nutrição Vegetal.
Thesaurus Nal: | plant nutrition.
Categoria do assunto: | --
Registro original: | Embrapa Cerrados (CPAC)
Exemplares: | CPAC - (11684-1) - ADD - SP - -- - CRI4760 -  - CRI4760 - DIS