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Registro Completo |
Biblioteca(s): |
Embrapa Agricultura Digital; Embrapa Arroz e Feijão. |
Data corrente: |
15/03/1996 |
Data da última atualização: |
18/06/2020 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
FAGERIA, N. K.; CARVALHO, J. R. P. |
Afiliação: |
NAND KUMAR FAGERIA, CNPAF; JOSE RUY PORTO DE CARVALHO, CNPAF. |
Título: |
Influence of aluminum in nutrient solutions on chemical composition in upland rice cultivars. |
Ano de publicação: |
1982 |
Fonte/Imprenta: |
Plant and Soil, The Hague, v. 69, n. 1, p. 31-44, Feb. 1982. |
ISSN: |
0032-079X |
DOI: |
10.1007/BF02185701 |
Idioma: |
Inglês |
Conteúdo: |
Aluminum toxicity is an important growth limiting factor for upland rice production on oxisols of ?cerrado? region in Brazil. Data related to the effect of Al on uptake of nutrients for rice crop are limited. The effect of five Al concentrations (0, 10, 20, 40 and 60 ppm) in culture solution on the chemical composition of 30 upland rice cultivars was studied. Aluminum concentration and content in plant tissues were increased with higher levels of Al in all cultivar. In the roots Al content was higher as compared with the tops. Critical toxic level of Al in the tops of 21 days old plants varied from 100 to 417 ppm depending on the cultivars. Rice cultivars responded differently to Al treatments with respect to nutrients uptake. Increased Al concentrations in the solution exerted an inhibiting effect on the concentrations and contents of N, P, K, Ca, Mg, S, Na, Zn, Fe, Mn, B and Cu. Thus the inhibition was more effective for macronutrients in the plant tops in following order: Mg>Ca>P>K>N>S>Na. Whereas for micronutrients it was in the order of Mn>Zn>Fe>Cu>B. Morphological, physiological and biochemical effects of Al, toxicity responsible for the reduction in plant nutrient uptake, are discussed. |
Palavras-Chave: |
Aluminum toxicitiy; Arroz de sequeiro; Composição química de arroz; Toxidez de aluminio; Upland rice. |
Thesagro: |
Arroz; Cerrado; Nutriente; Oryza Sativa; Solução Nutritiva. |
Thesaurus Nal: |
aluminum; Chemical composition; rice. |
Categoria do assunto: |
-- F Plantas e Produtos de Origem Vegetal |
Marc: |
LEADER 02134naa a2200313 a 4500 001 1208137 005 2020-06-18 008 1982 bl uuuu u00u1 u #d 022 $a0032-079X 024 7 $a10.1007/BF02185701$2DOI 100 1 $aFAGERIA, N. K. 245 $aInfluence of aluminum in nutrient solutions on chemical composition in upland rice cultivars.$h[electronic resource] 260 $c1982 520 $aAluminum toxicity is an important growth limiting factor for upland rice production on oxisols of ?cerrado? region in Brazil. Data related to the effect of Al on uptake of nutrients for rice crop are limited. The effect of five Al concentrations (0, 10, 20, 40 and 60 ppm) in culture solution on the chemical composition of 30 upland rice cultivars was studied. Aluminum concentration and content in plant tissues were increased with higher levels of Al in all cultivar. In the roots Al content was higher as compared with the tops. Critical toxic level of Al in the tops of 21 days old plants varied from 100 to 417 ppm depending on the cultivars. Rice cultivars responded differently to Al treatments with respect to nutrients uptake. Increased Al concentrations in the solution exerted an inhibiting effect on the concentrations and contents of N, P, K, Ca, Mg, S, Na, Zn, Fe, Mn, B and Cu. Thus the inhibition was more effective for macronutrients in the plant tops in following order: Mg>Ca>P>K>N>S>Na. Whereas for micronutrients it was in the order of Mn>Zn>Fe>Cu>B. Morphological, physiological and biochemical effects of Al, toxicity responsible for the reduction in plant nutrient uptake, are discussed. 650 $aaluminum 650 $aChemical composition 650 $arice 650 $aArroz 650 $aCerrado 650 $aNutriente 650 $aOryza Sativa 650 $aSolução Nutritiva 653 $aAluminum toxicitiy 653 $aArroz de sequeiro 653 $aComposição química de arroz 653 $aToxidez de aluminio 653 $aUpland rice 700 1 $aCARVALHO, J. R. P. 773 $tPlant and Soil, The Hague$gv. 69, n. 1, p. 31-44, Feb. 1982.
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1. | | CARVALHO, J. R. P. de. Atividades de pesquisa. In: ENCONTRO DE MÉTODOS QUANTITATIVOS, 1., 1982, Brasília, DF. Memória... Brasília, DF: EMBRAPA-DMQ, 1982. p. 172-178. (EMBRAPA-DMQ. DMQ/E/02).Tipo: Artigo em Anais de Congresso |
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Registros recuperados : 156 | |
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