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 | Acesso ao texto completo restrito à biblioteca da Embrapa Solos. Para informações adicionais entre em contato com cnps.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
19/10/2012 |
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Data da última atualização: |
03/11/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CANELLAS, L. P.; DOBBSS, L. B.; OLIVEIRA, A. L.; CHAGAS, J. G.; AGUIAR, N. O.; RUMJANEK, V. M.; NOVOTNY, E. H.; OLIVARES, F. L.; SPACCINI, R.; PICCOLO, A. |
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Afiliação: |
ETELVINO HENRIQUE NOVOTNY, CNPS. |
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Título: |
Chemical properties of humic matter as related to induction of plant lateral roots. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
European Journal of Soil Science, v. 63, n. 3, p. 315-324, Jun. 2012. |
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DOI: |
https://doi.org/10.1111/j.1365-2389.2012.01439.x |
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Idioma: |
Inglês |
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Conteúdo: |
A series of humic matter samples isolated from a soil sequence, different oxisols, size-fractionated from avermicompost humic acid and subjected to chemical modifications, were characterized by CPMAS13C-NMRspectroscopy. The relative signal areas in chemical shift regions of NMR spectra of the four sets of sampleswere analysed by principal component analysis (PCA). Hierarchical cluster analysis (HCA) was applied tobuild a classification model, which allowed the recognition of humic matter according to its origin. Therelationship between carbon species and biological activity of humic acids, as promoters of lateral rootemergence, was obtained by applying PLS multivariate analysis. This showed that lateral root emergencewas mostly related to NMR parameters such as the hydrophobicity index (HB/HI) and the 40 - 110 and160 - 200 ppm chemical shift regions (hydrophilic carbon HI), while the content of hydrophobic (HB) carbon inhumic samples was negatively correlated with induction of lateral root hair. Our results represent a step furtherin the structure-bioactivity relationship of natural humic substances and confirm their role as plant root growthpromoters. |
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Palavras-Chave: |
Humic matter; Humic substance; Vermicompost. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
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024 7 $ahttps://doi.org/10.1111/j.1365-2389.2012.01439.x$2DOI
100 1 $aCANELLAS, L. P.
245 $aChemical properties of humic matter as related to induction of plant lateral roots.$h[electronic resource]
260 $c2012
520 $aA series of humic matter samples isolated from a soil sequence, different oxisols, size-fractionated from avermicompost humic acid and subjected to chemical modifications, were characterized by CPMAS13C-NMRspectroscopy. The relative signal areas in chemical shift regions of NMR spectra of the four sets of sampleswere analysed by principal component analysis (PCA). Hierarchical cluster analysis (HCA) was applied tobuild a classification model, which allowed the recognition of humic matter according to its origin. Therelationship between carbon species and biological activity of humic acids, as promoters of lateral rootemergence, was obtained by applying PLS multivariate analysis. This showed that lateral root emergencewas mostly related to NMR parameters such as the hydrophobicity index (HB/HI) and the 40 - 110 and160 - 200 ppm chemical shift regions (hydrophilic carbon HI), while the content of hydrophobic (HB) carbon inhumic samples was negatively correlated with induction of lateral root hair. Our results represent a step furtherin the structure-bioactivity relationship of natural humic substances and confirm their role as plant root growthpromoters.
653 $aHumic matter
653 $aHumic substance
653 $aVermicompost
700 1 $aDOBBSS, L. B.
700 1 $aOLIVEIRA, A. L.
700 1 $aCHAGAS, J. G.
700 1 $aAGUIAR, N. O.
700 1 $aRUMJANEK, V. M.
700 1 $aNOVOTNY, E. H.
700 1 $aOLIVARES, F. L.
700 1 $aSPACCINI, R.
700 1 $aPICCOLO, A.
773 $tEuropean Journal of Soil Science$gv. 63, n. 3, p. 315-324, Jun. 2012.
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Registro original: |
Embrapa Solos (CNPS) |
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Biblioteca(s): |
Embrapa Gado de Corte. |
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Data corrente: |
18/12/2015 |
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Data da última atualização: |
03/03/2016 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
BRAZ, T. G. dos S.; JANK, L. |
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Afiliação: |
THIAGO GOMES DOS SANTOS BRAZ, Professor, Departamento de Zootecnia, Campus JK, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Diamantina, Brasil.; LIANA JANK, CNPGC. |
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Título: |
Nutritive value of hybrid progenies of Panicum maximum. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
In: INTERNATIONAL CONFERENCE ON FORAGES IN WARM CLIMATES, 1., 2015, Lavras, Brasil. Proceedings...confor. Lavras: University of Lavras, 2015. |
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Páginas: |
p. 267-270 |
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ISBN: |
978.85.8179.089-3 |
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Idioma: |
Inglês |
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Palavras-Chave: |
Cv Mombaça; Cv Tanzania; Guinea grass; Hemical composition. |
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Thesaurus NAL: |
breeding. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/135876/1/Braz-Proceedings-CONFOR-2015.pdf
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Marc: |
LEADER 00607nam a2200181 a 4500
001 2031999
005 2016-03-03
008 2015 bl uuuu u00u1 u #d
100 1 $aBRAZ, T. G. dos S.
245 $aNutritive value of hybrid progenies of Panicum maximum.$h[electronic resource]
260 $aIn: INTERNATIONAL CONFERENCE ON FORAGES IN WARM CLIMATES, 1., 2015, Lavras, Brasil. Proceedings...confor. Lavras: University of Lavras$c2015
300 $ap. 267-270
650 $abreeding
653 $aCv Mombaça
653 $aCv Tanzania
653 $aGuinea grass
653 $aHemical composition
700 1 $aJANK, L.
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