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| 1. |  | SOUZA, R. F.; VALOIS, A. C. C.; PAIVA, J. R. de; CARBAJAL, A. P.; ROCHA NETO, O. G. da; SOUZA, R. A. de. Desenvolvimento da pesquisa heveícola no Brasil. In: SIMPÓSIO DO TRÓPICO ÚMIDO, 1., 1984, Belém, PA. Anais. Belém, PA: EMBRAPA-CPATU, 1986. v. 4, p. 81-91. (EMBRAPA-CPATU. Documentos, 36). v.4 Culturas perenes.| Biblioteca(s): Embrapa Amazônia Oriental. |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pecuária Sul. Para informações adicionais entre em contato com cppsul.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Pecuária Sul. |
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Data corrente: |
01/10/2012 |
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Data da última atualização: |
01/10/2012 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
KÖPP, M. M.; LUZ, V. K. da; SOUSA, R. O. de; MAIA, L. C. da; SOUZA SOBRINHO, F. de; OLIVEIRA, A. C. de. |
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Afiliação: |
MAURICIO MARINI KÖPP, CPPSUL; VIVIANE KÖPP DA LUZ, UFPEL; ROGÉRIO OLIVEIRA DE SOUSA, UFPEL; LUCIANO CARLOS DA MAIA, UFPEL; FAUSTO DE SOUZA SOBRINHO, CNPGL; ANTONIO COSTA DE OLIVEIRA, UFPEL. |
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Título: |
Organic acid effects on nutrient uptake by rice. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Communications in Soil Science and Plant Analysis, New York, v. 43, n. 19, p. 2512-2520, 2012. |
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ISSN: |
0010-3624 |
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Idioma: |
Inglês |
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Conteúdo: |
The purpose of this work was to evaluate the responses of 20 rice cultivars to the phytotoxic effects of acetic, propionic, and butyric acids produced in soils under anaerobic conditions. The study was conducted in a hydroponic system, with four levels (0, 3, 6, and 9 mM) of the three organic acids in the ratio of 6:3:1 in a factorial of complete randomized block design with three replications. The evaluated variables were phosphorus (P) and potassium (K) contents. The analysis of variance revealed a significant interaction, and the established regressions showed differences among the genotypes as evaluated for both variables. Four genotypes were classified as tolerant in relation to P content and three genotypes as tolerant in relation to K. The best performance was verified with japonica genotypes and the irrigation-based growing system. |
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Thesagro: |
Arroz; Fitotoxicidade. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01484naa a2200217 a 4500
001 1935160
005 2012-10-01
008 2012 bl uuuu u00u1 u #d
022 $a0010-3624
100 1 $aKÖPP, M. M.
245 $aOrganic acid effects on nutrient uptake by rice.$h[electronic resource]
260 $c2012
520 $aThe purpose of this work was to evaluate the responses of 20 rice cultivars to the phytotoxic effects of acetic, propionic, and butyric acids produced in soils under anaerobic conditions. The study was conducted in a hydroponic system, with four levels (0, 3, 6, and 9 mM) of the three organic acids in the ratio of 6:3:1 in a factorial of complete randomized block design with three replications. The evaluated variables were phosphorus (P) and potassium (K) contents. The analysis of variance revealed a significant interaction, and the established regressions showed differences among the genotypes as evaluated for both variables. Four genotypes were classified as tolerant in relation to P content and three genotypes as tolerant in relation to K. The best performance was verified with japonica genotypes and the irrigation-based growing system.
650 $aArroz
650 $aFitotoxicidade
700 1 $aLUZ, V. K. da
700 1 $aSOUSA, R. O. de
700 1 $aMAIA, L. C. da
700 1 $aSOUZA SOBRINHO, F. de
700 1 $aOLIVEIRA, A. C. de
773 $tCommunications in Soil Science and Plant Analysis, New York$gv. 43, n. 19, p. 2512-2520, 2012.
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Embrapa Pecuária Sul (CPPSUL) |
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