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Registro Completo |
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
14/01/1997 |
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Data da última atualização: |
03/09/2019 |
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Autoria: |
SANZONOWICZ, C.; SMYTH, T. J. |
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Afiliação: |
CLAUDIO SANZONOWICZ, CPAC; Thomas Jot Smyth, NC State Univeristy - NCSU/Soil Science Departament. |
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Título: |
Effect of hydrogen on soybean root growth in a subsurface solution. |
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Ano de publicação: |
1995 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 30, n. 2, p. 255-261, fev. 1995. |
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Idioma: |
Inglês |
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Notas: |
Título em português: Efeito do hidrogênio na solução subsuperficial no crescimento de raízes de soja. |
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Conteúdo: |
A vertical split-root technique was used to evaluate the effects of pH levels in a subsurface solution compartment on root development of soybean (Glycine max (L.)Merr.). The surface root compartment (12cm) was filled with limed and fertilized soil. Treatments in the solution compartment were seven pH levels (3.7, 4.0, 4.3, 4.6, 4.9, 5.2, and 5.5) with 2uM Ca, 18uMB, and 0.5uMZn. Even when root growth in the subsurface solution compartment was restricted by pH, there were no differences in aboveground dry matter production. The number of other roots extending from the soil into the solution compartment increased with time and, at day 12 decreased by 13.3 roots/ot with each unit increase in solution pH. Final main root length increased 26.6 cm/plant with each unit increase in solution pH, while lateral root length increased exponentially. Low pH (<4.3) inhibited lateral roots formation on main roots, and increased the number of othe roots. At higher pH values the average length oflaterals and number of other roots increased. At pH 3.7 other roots accounted for 88.3% of the total root length (TRL), main roots accounted for 11.7% and lateral roots were not present. At pH5.5 TRL was comprised by 15.1% from other roots, 54.9% from main roots, and 30.0% from lateral roots. Low pH reduced the length of laterals more than main roots. |
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Palavras-Chave: |
Acidez subsurperficial; Comprimento radicular; Lateral roots; Main root; Raiz principal; Raizes laterais; Root lenght; Subsurface acidity. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/AI-SEDE/19385/1/pab14_fev_95.pdf
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Marc: |
LEADER 02139naa a2200241 a 4500
001 1104184
005 2019-09-03
008 1995 bl uuuu u00u1 u #d
100 1 $aSANZONOWICZ, C.
245 $aEffect of hydrogen on soybean root growth in a subsurface solution.
260 $c1995
500 $aTítulo em português: Efeito do hidrogênio na solução subsuperficial no crescimento de raízes de soja.
520 $aA vertical split-root technique was used to evaluate the effects of pH levels in a subsurface solution compartment on root development of soybean (Glycine max (L.)Merr.). The surface root compartment (12cm) was filled with limed and fertilized soil. Treatments in the solution compartment were seven pH levels (3.7, 4.0, 4.3, 4.6, 4.9, 5.2, and 5.5) with 2uM Ca, 18uMB, and 0.5uMZn. Even when root growth in the subsurface solution compartment was restricted by pH, there were no differences in aboveground dry matter production. The number of other roots extending from the soil into the solution compartment increased with time and, at day 12 decreased by 13.3 roots/ot with each unit increase in solution pH. Final main root length increased 26.6 cm/plant with each unit increase in solution pH, while lateral root length increased exponentially. Low pH (<4.3) inhibited lateral roots formation on main roots, and increased the number of othe roots. At higher pH values the average length oflaterals and number of other roots increased. At pH 3.7 other roots accounted for 88.3% of the total root length (TRL), main roots accounted for 11.7% and lateral roots were not present. At pH5.5 TRL was comprised by 15.1% from other roots, 54.9% from main roots, and 30.0% from lateral roots. Low pH reduced the length of laterals more than main roots.
653 $aAcidez subsurperficial
653 $aComprimento radicular
653 $aLateral roots
653 $aMain root
653 $aRaiz principal
653 $aRaizes laterais
653 $aRoot lenght
653 $aSubsurface acidity
700 1 $aSMYTH, T. J.
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 30, n. 2, p. 255-261, fev. 1995.
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Registro original: |
Embrapa Unidades Centrais (AI-SEDE) |
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| Registros recuperados : 70 | |
| 1. |  | SMYTH, T. J. Adubação do guaranazeiro. Manaus: EMBRAPA-UEPAE de Manaus, 1982. 16 p. Trabalho apresentado no Curso de Atualização em Fertilidade de Solos Tropicais, Manaus, 1982.| Biblioteca(s): Embrapa Amazônia Ocidental. |
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| 12. | | SMYTH, T. J.; BASTOS, J. B. Adubação potássica para milho e caupi em latossolo amarelo alico do Estado do Amazonas. In: SIMPÓSIO DO TRÓPICO ÚMIDO, 1., 1984, Belém, PA. Anais. Belém, PA: EMBRAPA-CPATU, 1986. v. 3, p. 173-181. (EMBRAPA-CPATU. Documentos, 36).| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Ocidental; Embrapa Amazônia Oriental. |
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| 15. | | SMYTH, T. J.; CRAVO, M. D. S. Nutrient dynamics. In: CAUDLE, N. (Ed.). Tropsoils technical report 1986-1987. Raleigh: North Carolina State University, 1989. p. 148.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Amazônia Ocidental. |
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| Registros recuperados : 70 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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