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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
19/07/2010 |
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Data da última atualização: |
22/03/2011 |
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Autoria: |
VIANA, L. C.; TRUGILHO, P. F.; HEIN, P. R. G.; LIMA, J. T.; SILVA, J. R. M. da. |
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Afiliação: |
Lívia Cássia Viana; Paulo Fernando Trugilho; Paulo Ricardo Gherardi Hein; José Tarcísio Lima; José Reinaldo Moreira da Silva. |
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Título: |
Predicting the morphological characteristics and basic density of Eucalyptus wood using the NIRS technique. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
Cerne, Lavras. v. 15, n.4, p. 421-429, out./dez. 2009. |
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Idioma: |
Inglês |
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Conteúdo: |
This research aimed to apply the near infrared spectroscopy technique (NIRS) for fast prediction of basic density and
morphological characteristics of wood fibers in Eucalyptus clones. Six Eucalyptus clones aged three years were used, obtained from
plantations in Cocais, Guanhães, Rio Doce and Santa Bárbara, in Minas Gerais state. The morphological characteristics of the fibers
and basic density of the wood were determined by conventional methods and correlated with near infrared spectra using partial least
square regression (PLS regression). Best calibration correlations were obtained in basic density prediction, with values 0.95 for
correlation coefficient of cross validation (Rcv) and 3.4 for ratio performance deviation (RPD), in clone 57. Fiber length can be
predicted by models with Rcv ranging from 0.61 to 0.89 and standard error (SECV) ranging from 0.037 to 0.079 mm. The prediction
model for wood fiber width presented higher Rcv (0.82) and RPD (1.9) values in clone 1046. Best fits to estimate lumen diameter and
fiber wall thickness were obtained with information from clone 1046. In some clones, the NIRS technique proved efficient to predict
the anatomical properties and basic density of wood in Eucalyptus clones. |
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Palavras-Chave: |
Anatomical element; Near infrared spectroscopy; Timber. |
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Thesaurus Nal: |
hardwood; specific gravity. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01910naa a2200229 a 4500
001 1858054
005 2011-03-22
008 2009 bl uuuu u00u1 u #d
100 1 $aVIANA, L. C.
245 $aPredicting the morphological characteristics and basic density of Eucalyptus wood using the NIRS technique.
260 $c2009
520 $aThis research aimed to apply the near infrared spectroscopy technique (NIRS) for fast prediction of basic density and morphological characteristics of wood fibers in Eucalyptus clones. Six Eucalyptus clones aged three years were used, obtained from plantations in Cocais, Guanhães, Rio Doce and Santa Bárbara, in Minas Gerais state. The morphological characteristics of the fibers and basic density of the wood were determined by conventional methods and correlated with near infrared spectra using partial least square regression (PLS regression). Best calibration correlations were obtained in basic density prediction, with values 0.95 for correlation coefficient of cross validation (Rcv) and 3.4 for ratio performance deviation (RPD), in clone 57. Fiber length can be predicted by models with Rcv ranging from 0.61 to 0.89 and standard error (SECV) ranging from 0.037 to 0.079 mm. The prediction model for wood fiber width presented higher Rcv (0.82) and RPD (1.9) values in clone 1046. Best fits to estimate lumen diameter and fiber wall thickness were obtained with information from clone 1046. In some clones, the NIRS technique proved efficient to predict the anatomical properties and basic density of wood in Eucalyptus clones.
650 $ahardwood
650 $aspecific gravity
653 $aAnatomical element
653 $aNear infrared spectroscopy
653 $aTimber
700 1 $aTRUGILHO, P. F.
700 1 $aHEIN, P. R. G.
700 1 $aLIMA, J. T.
700 1 $aSILVA, J. R. M. da
773 $tCerne, Lavras.$gv. 15, n.4, p. 421-429, out./dez. 2009.
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Registro original: |
Embrapa Florestas (CNPF) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Milho e Sorgo. Para informações adicionais entre em contato com cnpms.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
09/10/2014 |
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Data da última atualização: |
27/09/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
HUFNAGEL, B.; SOUSA, S. M. de; ASSIS, L.; GUIMARAES, C. T.; LEISER, W.; AZEVEDO, G. C.; NEGRI, B.; LARSON, B. G.; SHAFF, J. E.; PASTINA, M. M.; BARROS, B. A.; WELTZIEN, E.; RATTUNDE, H. F. W.; VIANA, J. H.; CLARK, R. T.; FALCÃO, A.; GAZAFFI, R.; GARCIA, A. A. F.; SCHAFFERT, R. E.; KOCHIAN, L. V.; MAGALHAES, J. V. |
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Afiliação: |
SYLVIA MORAIS DE SOUSA TINOCO, CNPMS; CLAUDIA TEIXEIRA GUIMARAES, CNPMS; MARIA MARTA PASTINA, CNPMS; BEATRIZ DE ALMEIDA BARROS, CNPMS; ROBERT EUGENE SCHAFFERT, CNPMS; JURANDIR VIEIRA DE MAGALHAES, CNPMS. |
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Título: |
Duplicate and conquer: multiple homologs of PHOSPHORUS-STARVATION TOLERANCE1 enhance phosphorus acquisition and sorghum performance on low-phosphorus soils. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Plant Physiology, Bethesda, v. 166, p. 659-677, Oct. 2014. |
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DOI: |
10.1104/pp.114.243949 |
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Idioma: |
Português |
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Conteúdo: |
Low soil phosphorus (P) availability is a major constraint for crop production in tropical regions. The rice (Oryza sativa) proteinkinase,PHOSPHORUS-STARVATION TOLERANCE1 (OsPSTOL1), was previously shown to enhance P acquisition and grain yield in rice under P deficiency. We investigated the role of homologs of OsPSTOL1 in sorghum (Sorghum bicolor) performance under low P. Association mapping was undertaken in two sorghum association panels phenotyped for P uptake, root system morphology and architecture in hydroponics and grain yield and biomass accumulation under low-P conditions, in Brazil and/or in Mali. Root length and root surface area were positively correlated with grain yield under low P in the soil, emphasizing the importance of P acquisition efficiency in sorghum adaptation to low-P availability. SbPSTOL1 alleles reducing root diameter were associated with enhanced P uptake under low P in hydroponics, whereas Sb03g006765 and Sb03g0031680 alleles increasing root surface area also increased grain yield in a low-P soil. SbPSTOL1 genes colocalized with quantitative trait loci for traits underlying root morphology and dry weight accumulation under low P via linkage mapping. Consistent allelic effects for enhanced sorghum performance under low P between association panels, including enhanced grain yield under low P in the soil in Brazil, point toward a relatively stable role for Sb03g006765 across genetic backgrounds and environmental conditions. This study indicates that multiple SbPSTOL1 genes have a more general role in the root system, not only enhancing root morphology traits but also changing root system architecture, which leads to grain yield gain under low-P availability in the soil. MenosLow soil phosphorus (P) availability is a major constraint for crop production in tropical regions. The rice (Oryza sativa) proteinkinase,PHOSPHORUS-STARVATION TOLERANCE1 (OsPSTOL1), was previously shown to enhance P acquisition and grain yield in rice under P deficiency. We investigated the role of homologs of OsPSTOL1 in sorghum (Sorghum bicolor) performance under low P. Association mapping was undertaken in two sorghum association panels phenotyped for P uptake, root system morphology and architecture in hydroponics and grain yield and biomass accumulation under low-P conditions, in Brazil and/or in Mali. Root length and root surface area were positively correlated with grain yield under low P in the soil, emphasizing the importance of P acquisition efficiency in sorghum adaptation to low-P availability. SbPSTOL1 alleles reducing root diameter were associated with enhanced P uptake under low P in hydroponics, whereas Sb03g006765 and Sb03g0031680 alleles increasing root surface area also increased grain yield in a low-P soil. SbPSTOL1 genes colocalized with quantitative trait loci for traits underlying root morphology and dry weight accumulation under low P via linkage mapping. Consistent allelic effects for enhanced sorghum performance under low P between association panels, including enhanced grain yield under low P in the soil in Brazil, point toward a relatively stable role for Sb03g006765 across genetic backgrounds and environmental conditions. This study indicates th... Mostrar Tudo |
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Thesagro: |
Fósforo; Solo; Sorgo. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02900naa a2200409 a 4500
001 1997010
005 2017-09-27
008 2014 bl uuuu u00u1 u #d
024 7 $a10.1104/pp.114.243949$2DOI
100 1 $aHUFNAGEL, B.
245 $aDuplicate and conquer$bmultiple homologs of PHOSPHORUS-STARVATION TOLERANCE1 enhance phosphorus acquisition and sorghum performance on low-phosphorus soils.$h[electronic resource]
260 $c2014
520 $aLow soil phosphorus (P) availability is a major constraint for crop production in tropical regions. The rice (Oryza sativa) proteinkinase,PHOSPHORUS-STARVATION TOLERANCE1 (OsPSTOL1), was previously shown to enhance P acquisition and grain yield in rice under P deficiency. We investigated the role of homologs of OsPSTOL1 in sorghum (Sorghum bicolor) performance under low P. Association mapping was undertaken in two sorghum association panels phenotyped for P uptake, root system morphology and architecture in hydroponics and grain yield and biomass accumulation under low-P conditions, in Brazil and/or in Mali. Root length and root surface area were positively correlated with grain yield under low P in the soil, emphasizing the importance of P acquisition efficiency in sorghum adaptation to low-P availability. SbPSTOL1 alleles reducing root diameter were associated with enhanced P uptake under low P in hydroponics, whereas Sb03g006765 and Sb03g0031680 alleles increasing root surface area also increased grain yield in a low-P soil. SbPSTOL1 genes colocalized with quantitative trait loci for traits underlying root morphology and dry weight accumulation under low P via linkage mapping. Consistent allelic effects for enhanced sorghum performance under low P between association panels, including enhanced grain yield under low P in the soil in Brazil, point toward a relatively stable role for Sb03g006765 across genetic backgrounds and environmental conditions. This study indicates that multiple SbPSTOL1 genes have a more general role in the root system, not only enhancing root morphology traits but also changing root system architecture, which leads to grain yield gain under low-P availability in the soil.
650 $aFósforo
650 $aSolo
650 $aSorgo
700 1 $aSOUSA, S. M. de
700 1 $aASSIS, L.
700 1 $aGUIMARAES, C. T.
700 1 $aLEISER, W.
700 1 $aAZEVEDO, G. C.
700 1 $aNEGRI, B.
700 1 $aLARSON, B. G.
700 1 $aSHAFF, J. E.
700 1 $aPASTINA, M. M.
700 1 $aBARROS, B. A.
700 1 $aWELTZIEN, E.
700 1 $aRATTUNDE, H. F. W.
700 1 $aVIANA, J. H.
700 1 $aCLARK, R. T.
700 1 $aFALCÃO, A.
700 1 $aGAZAFFI, R.
700 1 $aGARCIA, A. A. F.
700 1 $aSCHAFFERT, R. E.
700 1 $aKOCHIAN, L. V.
700 1 $aMAGALHAES, J. V.
773 $tPlant Physiology, Bethesda$gv. 166, p. 659-677, Oct. 2014.
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Embrapa Milho e Sorgo (CNPMS) |
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