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Registro Completo |
Biblioteca(s): |
Embrapa Agrobiologia; Embrapa Milho e Sorgo. |
Data corrente: |
23/01/1997 |
Data da última atualização: |
05/02/2014 |
Autoria: |
PITTA, G. V. E. |
Afiliação: |
EMBRAPA/CNPMS. |
Título: |
The growth and nutrient uptake of selected sorghum and maize genotypes to evaluate their tolerance to soluble aluminium, especially in soils. |
Ano de publicação: |
1983 |
Fonte/Imprenta: |
1983. |
Páginas: |
387 p. |
Idioma: |
Inglês |
Notas: |
Tese (Doutorado) - University of London, London. |
Conteúdo: |
This thesis examines the effects of aluminium treatments added to an acid soil on some selected sorghum and maize genotypes grown up to 70 days in a constant environment, and on the associated soil characteristics, for comparasion with their Al tolerance classification based on grain yield in Brazilian field experiments. It also investigates the effects of combinations of major nutrients with Al treatments on these plant and soil characteristics to evaluate their interaction with the effect of Al toxicity on these plants. In a third set of experiments in water culture using a smaller number of treatments, these plant characteristics are re-evaluated for comparison with the Al tolorance classification from Brazilian field experiments based on grain yield, and from hydroponic trial based on other major nutrients into the roots is assessed by Scanning Electron microscopy (SEM-ED), and the cation and anion status in plant parts is determined by plasma ashing and SEM-ED techniques. In soil culture, the results suggest that the Al treatments used were not high enough to increase the labile soil aluminium appreciably, mainly because of an intense and very rapid chemisorption reaction which limited its effects on plant growth. However, the high Al concentrations found in plant parts can be attributed to Al uptake mainly from the surface soil layers and through superficial roots. The sorghum genotypes consisted of high and low yield potential groups, each group consisting of an Al tolerant and an Al sensitive genotype ..... MenosThis thesis examines the effects of aluminium treatments added to an acid soil on some selected sorghum and maize genotypes grown up to 70 days in a constant environment, and on the associated soil characteristics, for comparasion with their Al tolerance classification based on grain yield in Brazilian field experiments. It also investigates the effects of combinations of major nutrients with Al treatments on these plant and soil characteristics to evaluate their interaction with the effect of Al toxicity on these plants. In a third set of experiments in water culture using a smaller number of treatments, these plant characteristics are re-evaluated for comparison with the Al tolorance classification from Brazilian field experiments based on grain yield, and from hydroponic trial based on other major nutrients into the roots is assessed by Scanning Electron microscopy (SEM-ED), and the cation and anion status in plant parts is determined by plasma ashing and SEM-ED techniques. In soil culture, the results suggest that the Al treatments used were not high enough to increase the labile soil aluminium appreciably, mainly because of an intense and very rapid chemisorption reaction which limited its effects on plant growth. However, the high Al concentrations found in plant parts can be attributed to Al uptake mainly from the surface soil layers and through superficial roots. The sorghum genotypes consisted of high and low yield potential groups, each group consisting of an Al to... Mostrar Tudo |
Palavras-Chave: |
Al; Aluminium; Maize; Mineral nutrition; Nutricao mineral; Plants; Sorghum; Tolerance; Tolerancia. |
Thesagro: |
Absorção; Alumínio; Crescimento; Milho; Nutriente; Planta; Solo; Sorghum Bicolor; Sorgo; Toxidez; Zea Mays. |
Thesaurus Nal: |
nutrient uptake; soil; toxicity. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02573nam a2200409 a 4500 001 1473647 005 2014-02-05 008 1983 bl uuuu m 00u1 u #d 100 1 $aPITTA, G. V. E. 245 $aThe growth and nutrient uptake of selected sorghum and maize genotypes to evaluate their tolerance to soluble aluminium, especially in soils. 260 $a1983.$c1983 300 $a387 p. 500 $aTese (Doutorado) - University of London, London. 520 $aThis thesis examines the effects of aluminium treatments added to an acid soil on some selected sorghum and maize genotypes grown up to 70 days in a constant environment, and on the associated soil characteristics, for comparasion with their Al tolerance classification based on grain yield in Brazilian field experiments. It also investigates the effects of combinations of major nutrients with Al treatments on these plant and soil characteristics to evaluate their interaction with the effect of Al toxicity on these plants. In a third set of experiments in water culture using a smaller number of treatments, these plant characteristics are re-evaluated for comparison with the Al tolorance classification from Brazilian field experiments based on grain yield, and from hydroponic trial based on other major nutrients into the roots is assessed by Scanning Electron microscopy (SEM-ED), and the cation and anion status in plant parts is determined by plasma ashing and SEM-ED techniques. In soil culture, the results suggest that the Al treatments used were not high enough to increase the labile soil aluminium appreciably, mainly because of an intense and very rapid chemisorption reaction which limited its effects on plant growth. However, the high Al concentrations found in plant parts can be attributed to Al uptake mainly from the surface soil layers and through superficial roots. The sorghum genotypes consisted of high and low yield potential groups, each group consisting of an Al tolerant and an Al sensitive genotype ..... 650 $anutrient uptake 650 $asoil 650 $atoxicity 650 $aAbsorção 650 $aAlumínio 650 $aCrescimento 650 $aMilho 650 $aNutriente 650 $aPlanta 650 $aSolo 650 $aSorghum Bicolor 650 $aSorgo 650 $aToxidez 650 $aZea Mays 653 $aAl 653 $aAluminium 653 $aMaize 653 $aMineral nutrition 653 $aNutricao mineral 653 $aPlants 653 $aSorghum 653 $aTolerance 653 $aTolerancia
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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Registros recuperados : 174 | |
1. | | PITTA, G. V. E. Acidez do solo. In: EMPRESA BRASILEIRA DE PESQUISA AGROPECUARIA. Centro Nacional de Pesquisa de Milho e Sorgo. Solos da região Centro Sul: potencialidades e limitações para as culturas de milho e sorgo. Sete Lagoas, 1978. p. 70-84.Tipo: Capítulo em Livro Técnico-Científico |
Biblioteca(s): Embrapa Milho e Sorgo. |
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3. | | PITTA, G. V. E. Fenômeno de troca de cations e anions no solo. In: EMPRESA BRASILEIRA DE PESQUISA AGROPECUARIA. Centro Nacional de Pesquisa de Milho e Sorgo. Sete Lagoas, MG. Solos na região Centro Sul: potencialidades e limitações para as culturas de milho e sorgo. Sete Lagoas, 1978. p. 21-25.Tipo: Capítulo em Livro Técnico-Científico |
Biblioteca(s): Embrapa Milho e Sorgo. |
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5. | | PITTA, G. V. E. Situação da cultura do sorgo no Brasil. In: EMBRAPA. Centro de Nacional de Pesquisa de Milho e Sorgo. Relatório técnico anual do Centro Nacional de Pesquisa de Milho e Sorgo 1985-1987. Sete Lagoas, 1991. p. 101-102.Biblioteca(s): Embrapa Milho e Sorgo. |
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Registros recuperados : 174 | |
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