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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
16/06/2000 |
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Data da última atualização: |
20/01/2010 |
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Autoria: |
SPEHAR, C. R. |
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Título: |
Diallel analysis for grain yield and mineral absorption rate of soybeans grown in acid Brazilian savannah soil. |
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Ano de publicação: |
1999 |
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Fonte/Imprenta: |
Pesquisa Agropecuaria Brasileira, Brasilia, v.34, n.6, p.1003-1009, jun. 1999. |
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Idioma: |
Inglês |
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Conteúdo: |
High available aluminium and low levels of calcium below the ploughed zone of the soil are limiting factors for agricultural sustainability in the Brazilian Cerrados (Savannahs). The mineral stresses compound with dry spells effect by preventing deep root growth of cultivated plants and causes yield instability. Tre mode of inheritance for grain yield and mineral absorption ratio of a diallel cross in soybeans [Glycine max (L) Merrill ]grown in high and low Al areas was identified. Differences among the genotypes for grain yield were more evident in the high Al, by grouping tolerant and non-tollerant genotypes for their respective arrays in the hybrids. A large proportion of genetic variance was additive for grain yield and mineral absorption ratio in both environments. High heritability values suggest that soybeans can be improved by crosses among Al-tolerant genotypes, using modified pedigree, early generation and recurrent selection schemes. |
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Palavras-Chave: |
Additive; Aluminium; Cultivar; Dominance. |
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Thesagro: |
Alumínio; Cálcio; Cerrado; Glycine Max; Melhoramento Genético Vegetal; Soja. |
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Thesaurus Nal: |
breeding; calcium; plant breeding; soybeans. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01748naa a2200289 a 4500
001 1546220
005 2010-01-20
008 1999 bl --- 0-- u #d
100 1 $aSPEHAR, C. R.
245 $aDiallel analysis for grain yield and mineral absorption rate of soybeans grown in acid Brazilian savannah soil.
260 $c1999
520 $aHigh available aluminium and low levels of calcium below the ploughed zone of the soil are limiting factors for agricultural sustainability in the Brazilian Cerrados (Savannahs). The mineral stresses compound with dry spells effect by preventing deep root growth of cultivated plants and causes yield instability. Tre mode of inheritance for grain yield and mineral absorption ratio of a diallel cross in soybeans [Glycine max (L) Merrill ]grown in high and low Al areas was identified. Differences among the genotypes for grain yield were more evident in the high Al, by grouping tolerant and non-tollerant genotypes for their respective arrays in the hybrids. A large proportion of genetic variance was additive for grain yield and mineral absorption ratio in both environments. High heritability values suggest that soybeans can be improved by crosses among Al-tolerant genotypes, using modified pedigree, early generation and recurrent selection schemes.
650 $abreeding
650 $acalcium
650 $aplant breeding
650 $asoybeans
650 $aAlumínio
650 $aCálcio
650 $aCerrado
650 $aGlycine Max
650 $aMelhoramento Genético Vegetal
650 $aSoja
653 $aAdditive
653 $aAluminium
653 $aCultivar
653 $aDominance
773 $tPesquisa Agropecuaria Brasileira, Brasilia$gv.34, n.6, p.1003-1009, jun. 1999.
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Registro original: |
Embrapa Cerrados (CPAC) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
13/11/2019 |
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Data da última atualização: |
27/04/2020 |
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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: |
MALUCELLI, L. C.; SILVESTRE, G. F.; CARNEIRO, J.; VASCONCELOS, E. C.; GUIOTOKU, M.; MAIA, C. E. M. B. de F.; CARVALHO FILHO, M. A. S. |
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Afiliação: |
L. C. Malucelli, Doutorando da Universidade Positivo; G. F. Silvestre, UFPR; J. Carneiro, UFPR; E. C. Vasconcelos, Universidade Positivo; MARCELA GUIOTOKU, CNPF; CLAUDIA E. M. B. de F. MAIA, Pesquisadora aposentada da Embrapa Florestas; M. A. S. Carvalho Filho, Universidade Positivo. |
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Título: |
Biochar higher heating value estimative using thermogravimetric analysis. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Journal of Thermal Analysis and Calorimetry, v. 139, n. 3, p. 2215-2220, Feb. 2020. |
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DOI: |
https://doi.org/10.1007/s10973-019-08597-8 |
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Idioma: |
Inglês |
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Conteúdo: |
The higher heating value (HHV) is an important parameter to indicate the energetic potential of biomass from different sources. Bomb calorimeter is the standard to obtain this data; however, in the absence of this equipment, estimative through proximate analysis aided with multiple regression formulas is an acceptable alternative. Still, this is a time-consuming technique and highly dependable of operator skills. In this context, thermogravimetric analysis has been used to obtain proximate analysis results with higher precision and demanding a small amount of samples. Here, a simple and effective method to estimate HHV from data obtained by thermogravimetric analysis using different sources of biomass is presented. The proposed method showed to be more accurate to estimate HHV than proximate analysis laboratory procedure. Greater correlation was observed between the HHV values obtained from calorimeter?thermogravimetry than the ones obtained from calorimeter?proximate analysis. Multiple regression analysis indicated that fixed carbon and ashes have an inverse influence over HHV, while the former is responsible for high calorific value and the latter affects energy release. Finally, the proposed method showed to be fast and accurate to estimate HHV of biochar samples and should be easily adaptable to other studies that require fast assessment of calorific value from biochar. |
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Palavras-Chave: |
Análise térmica; Calorimeter; HHV; Higher calorific value; Maior valor calorífico; Proximate analysis. |
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Thesagro: |
Calorímetro. |
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Thesaurus NAL: |
Biochar; Thermal analysis. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02355naa a2200313 a 4500
001 2114270
005 2020-04-27
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s10973-019-08597-8$2DOI
100 1 $aMALUCELLI, L. C.
245 $aBiochar higher heating value estimative using thermogravimetric analysis.$h[electronic resource]
260 $c2020
520 $aThe higher heating value (HHV) is an important parameter to indicate the energetic potential of biomass from different sources. Bomb calorimeter is the standard to obtain this data; however, in the absence of this equipment, estimative through proximate analysis aided with multiple regression formulas is an acceptable alternative. Still, this is a time-consuming technique and highly dependable of operator skills. In this context, thermogravimetric analysis has been used to obtain proximate analysis results with higher precision and demanding a small amount of samples. Here, a simple and effective method to estimate HHV from data obtained by thermogravimetric analysis using different sources of biomass is presented. The proposed method showed to be more accurate to estimate HHV than proximate analysis laboratory procedure. Greater correlation was observed between the HHV values obtained from calorimeter?thermogravimetry than the ones obtained from calorimeter?proximate analysis. Multiple regression analysis indicated that fixed carbon and ashes have an inverse influence over HHV, while the former is responsible for high calorific value and the latter affects energy release. Finally, the proposed method showed to be fast and accurate to estimate HHV of biochar samples and should be easily adaptable to other studies that require fast assessment of calorific value from biochar.
650 $aBiochar
650 $aThermal analysis
650 $aCalorímetro
653 $aAnálise térmica
653 $aCalorimeter
653 $aHHV
653 $aHigher calorific value
653 $aMaior valor calorífico
653 $aProximate analysis
700 1 $aSILVESTRE, G. F.
700 1 $aCARNEIRO, J.
700 1 $aVASCONCELOS, E. C.
700 1 $aGUIOTOKU, M.
700 1 $aMAIA, C. E. M. B. de F.
700 1 $aCARVALHO FILHO, M. A. S.
773 $tJournal of Thermal Analysis and Calorimetry$gv. 139, n. 3, p. 2215-2220, Feb. 2020.
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