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Registro Completo |
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Biblioteca(s): |
Embrapa Agroindústria Tropical. |
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Data corrente: |
06/07/1993 |
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Data da última atualização: |
06/07/1993 |
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Autoria: |
AL-KHAFAF, S.; WIERENGA, P. J.; WILLIAMS, B. C. |
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Título: |
A floration method for determining root mass in soil. |
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Ano de publicação: |
1977 |
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Fonte/Imprenta: |
Agronomy Journal, v.69, p.1025-1026, 1977. |
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Idioma: |
Inglês |
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Conteúdo: |
ABSTRACT - Root weight is commonly determined as a criterion of root response to the environment. Determination of root weight by soaking soil and associated roots, and washing over sieves may result in losses of root material. In this study the distribution of cotton roots with depth and time was determined by soaking soil and roots in a solution containing 40 g/liter sodiumhexametaphosphate in a 1:5 soil solution ratio. The density of the resulting soil suspensiion was increased to 1.5 g/cm3 by adding dry, 78% pure CaCl2 in a ratio of 1 g CaCl2 to 2 g soil suspension. Roots floated to the surface and were skimmed from the surface with a fine wire strainer. By subsequent washing in tap water roots and organic debris were separated. Distributions of fine grown cotton is shown at various times and depths. |
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Palavras-Chave: |
Algodao - raizes - peso - determinacao; Raiz - densidade; Raiz - diametro; Raiz - peso - determinacao; Raiz - separacao. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01394naa a2200205 a 4500
001 1417628
005 1993-07-06
008 1977 bl --- 0-- u #d
100 1 $aAL-KHAFAF, S.
245 $aA floration method for determining root mass in soil.
260 $c1977
520 $aABSTRACT - Root weight is commonly determined as a criterion of root response to the environment. Determination of root weight by soaking soil and associated roots, and washing over sieves may result in losses of root material. In this study the distribution of cotton roots with depth and time was determined by soaking soil and roots in a solution containing 40 g/liter sodiumhexametaphosphate in a 1:5 soil solution ratio. The density of the resulting soil suspensiion was increased to 1.5 g/cm3 by adding dry, 78% pure CaCl2 in a ratio of 1 g CaCl2 to 2 g soil suspension. Roots floated to the surface and were skimmed from the surface with a fine wire strainer. By subsequent washing in tap water roots and organic debris were separated. Distributions of fine grown cotton is shown at various times and depths.
653 $aAlgodao - raizes - peso - determinacao
653 $aRaiz - densidade
653 $aRaiz - diametro
653 $aRaiz - peso - determinacao
653 $aRaiz - separacao
700 1 $aWIERENGA, P. J.
700 1 $aWILLIAMS, B. C.
773 $tAgronomy Journal$gv.69, p.1025-1026, 1977.
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Registro original: |
Embrapa Agroindústria Tropical (CNPAT) |
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| Registros recuperados : 2 | |
| 1. |  | TAHERI, S.; JAMES, S. W.; DECAËNS, T.; ROY, V.; ROUGERIE, R.; WILLIAMS, B.; ANDERSON, F.; BROWN, G. G.; CUNHA, L.; SILVA, E. da; CHANG, C.; DUPONT, L. Phylogenetic assessment within a complex of tropical peregrine species, Pontoscolex corethrurus. In: ANNUAL MEETING OF THE ASSOCIATION FOR TROPICAL BIOLOGY AND CONSERVATION, 53., 2016, Montpellier. Tropical ecology and society reconciliating conservation and suatainable use of biodiversity: program & abstracts. [S.l.]: ATBC, 2016. p. 98.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Florestas. |
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| 2. | | TAHERI, S.; AMES, S.; ROY, V.; DECAËNS, T.; WILLIAMS, B. W.; ANDERSON, F.; ROUGERIE, R.; CHANG, C.-H.; BROWN, G. G.; CUNHA, L.; STANTON, D. W. G.; SILVA, E. da; CHEN, J-H.; LEMMON, A. R.; LEMMON, E. M.; BARTZ, M.; BARETTA, D.; BAROIS, I.; LAPIED, E.; COULIS, M.; DUPONT, L. Complex taxonomy of the "brush tail" peregrine earthworm Pontoscolex corethrurus. Molecular Phylogenetics and Evolution, v. 124, p. 60-70, July 2018.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Florestas. |
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| Registros recuperados : 2 | |
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