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Registro Completo |
Biblioteca(s): |
Embrapa Cerrados. |
Data corrente: |
08/06/1998 |
Data da última atualização: |
08/06/1998 |
Autoria: |
BAHIA FILHO, A. F. C.; MAGNAVACA, R.; SCHAFFERT, R. E.; ALVES, V. M. C. |
Título: |
Identification, utilization, and economic impact of maize germplasm tolerant to low levels of phosphorus and toxic levels of exchangeable aluminum in Brazilian soils. |
Ano de publicação: |
1997 |
Fonte/Imprenta: |
In: MONIZ, A.C.; FURLANI, A.M.C.; SCHAFFERT, R.E.; FAGERIA, N.K.; ROSOLEM, C.A.; CANTARELLA, H., ed. Plant-soil interactions at low pH: sustainable agriculture and forestry production. Campinas: Brazilian Soil Science Society, 1997. |
Páginas: |
p.59-70. |
Idioma: |
Inglês |
Notas: |
Trabalho apresentado no "Fourth International Symposium on Plant-Soil Interactions at low pH, Belo Horizonte, MG, Brazil, Mar. 1996". |
Conteúdo: |
A historical review of research and development related to the identification, utilization and economic impact of maize germplasm adapted to acid soils at EMBRAPA/CNPMS is presented. Methods to identify tolerant germplasm and to select segregating materials, through field experiments in acid and fertile soils and screening in nutrient solution are discussed. Results of research including inheritance for aluminum tolerance and development of high yielding tolerant hybrids are presented. Also, results of phosphorus efficiency related to root development, internal accumulation of P and kinetics of absorption of P and N are discussed. The experience accumulated in this research program has shown that adaptation to acid can be associated, in the same genotype with high yield potential and yield stability, as result of tolerance to Al toxicity and improved P use efficiency. This program has generated several commercial cultivars which have been successfully utilized in a large area of Brasil. The knowledge and experimental germplasm generated are also valuable resources which are being used to support basic studies of mechanisms of tolerance to aluminum and nutrient use efficiency. A better understanding of these mechanisms will help the development of better strategies for selection and improved cultivars in the future. |
Palavras-Chave: |
Aluminium; Aspecto economico; Brasil; Economic situation; Maize. |
Thesagro: |
Alumínio; Cerrado; Fósforo; Genética Vegetal; Germoplasma; Milho; Solo Ácido; Toxidez. |
Thesaurus Nal: |
acid soils; Brazil; genetics; germplasm; phosphorus; toxicity. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02740naa a2200409 a 4500 001 1554272 005 1998-06-08 008 1997 bl uuuu u00u1 u #d 100 1 $aBAHIA FILHO, A. F. C. 245 $aIdentification, utilization, and economic impact of maize germplasm tolerant to low levels of phosphorus and toxic levels of exchangeable aluminum in Brazilian soils. 260 $c1997 300 $ap.59-70. 500 $aTrabalho apresentado no "Fourth International Symposium on Plant-Soil Interactions at low pH, Belo Horizonte, MG, Brazil, Mar. 1996". 520 $aA historical review of research and development related to the identification, utilization and economic impact of maize germplasm adapted to acid soils at EMBRAPA/CNPMS is presented. Methods to identify tolerant germplasm and to select segregating materials, through field experiments in acid and fertile soils and screening in nutrient solution are discussed. Results of research including inheritance for aluminum tolerance and development of high yielding tolerant hybrids are presented. Also, results of phosphorus efficiency related to root development, internal accumulation of P and kinetics of absorption of P and N are discussed. The experience accumulated in this research program has shown that adaptation to acid can be associated, in the same genotype with high yield potential and yield stability, as result of tolerance to Al toxicity and improved P use efficiency. This program has generated several commercial cultivars which have been successfully utilized in a large area of Brasil. The knowledge and experimental germplasm generated are also valuable resources which are being used to support basic studies of mechanisms of tolerance to aluminum and nutrient use efficiency. A better understanding of these mechanisms will help the development of better strategies for selection and improved cultivars in the future. 650 $aacid soils 650 $aBrazil 650 $agenetics 650 $agermplasm 650 $aphosphorus 650 $atoxicity 650 $aAlumínio 650 $aCerrado 650 $aFósforo 650 $aGenética Vegetal 650 $aGermoplasma 650 $aMilho 650 $aSolo Ácido 650 $aToxidez 653 $aAluminium 653 $aAspecto economico 653 $aBrasil 653 $aEconomic situation 653 $aMaize 700 1 $aMAGNAVACA, R. 700 1 $aSCHAFFERT, R. E. 700 1 $aALVES, V. M. C. 773 $tIn: MONIZ, A.C.; FURLANI, A.M.C.; SCHAFFERT, R.E.; FAGERIA, N.K.; ROSOLEM, C.A.; CANTARELLA, H., ed. Plant-soil interactions at low pH: sustainable agriculture and forestry production. Campinas: Brazilian Soil Science Society, 1997.
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Registros recuperados : 237 | |
2. | | MAGNAVACA, R. CIMMYT. In: EMBRAPA. Centro de Nacional de Pesquisa de Milho e Sorgo. Relatório técnico anual do Centro Nacional de Pesquisa de Milho e Sorgo 1980-84. Sete Lagoas, 1986. p. 177.Biblioteca(s): Embrapa Milho e Sorgo. |
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3. | | MAGNAVACA, R. CIMMYT. 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. 164.Biblioteca(s): Embrapa Milho e Sorgo. |
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6. | | MAGNAVACA, R.; SILVA, J. Melhoramento do milho normal em Minas Gerais. In: MINAS GERAIS. Programa Integrado de Pesquisa Agropecuária do Estado de Minas Gerais. Revisao de literatura da cultura de milho no Estado de Minas Gerais. Belo Horioznte: Secretaria de Estado da Agricultura, 1974. p. 3-24.Tipo: Capítulo em Livro Técnico-Científico |
Biblioteca(s): Embrapa Milho e Sorgo. |
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11. | | MAGNAVACA, R.; LOBATO NETO, J.; SILVA, J. Efeito de borda em um híbrido de milho. Pesquisa Agropecuária Brasileira, Rio de Janeiro, v. 6, p. 273-278, 1971. (Agronomia, 4). Título em inglês: Effect of border in a corn hybrid.
A partir do v. 3(1968) é constituída de duas partes: Série Agronomia e Série Veterinária, publicadas também separadamente.Biblioteca(s): Embrapa Unidades Centrais. |
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Registros recuperados : 237 | |
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Nenhum registro encontrado para a expressão de busca informada. |
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