|
|
Registro Completo |
Biblioteca(s): |
Embrapa Agrossilvipastoril; Embrapa Florestas; Embrapa Unidades Centrais. |
Data corrente: |
18/10/2018 |
Data da última atualização: |
13/12/2018 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
TONINI, H.; SCHWENGBER, D. R.; MORALES, M. M.; MAGALHÃES, C. A. de S.; OLIVEIRA, J. M. F. de. |
Afiliação: |
HELIO TONINI, CPPSUL; DALTON ROBERTO SCHWENGBER, CPAF-RR; MARINA MOURA MORALES, CNPF; CIRO AUGUSTO DE SOUZA MAGALHAES, CPAMT; JANE MARIA FRANCO DE OLIVEIRA, CPAF-RR. |
Título: |
Growth, biomass, and energy quality of Acacia mangium timber grown at different spacings. |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 53, n. 7, p. 791-799, July 2018. |
Idioma: |
Inglês |
Conteúdo: |
The objective of this work was to assess the effect of spacing on the growth, biomass allocation, and wood quality for energy purposes of Acacia magium. A randomized complete block design was carried out with three replicates and five treatments consisting of trees planted at different spacings: 2.0x2.0, 2.5x2.5, 3.0x2.0, 3.0x2.5, and 3.0x3.0 m. At 67 months after planting, the following species parameters were evaluated: performance (mortality, diameter growth, height, bark factor, and bark and biomass volume yield) and wood energy quality (basic density, higher-calorific value, ash, fixed carbon, and volatile materials) through the analysis of variance. Plant spacing did not affect volume and biomass production per hectare nor wood quality for energy purposes. The widest spacing (3.0x3.0 m) provides better individual growth, and the narrowest one (2.0x2.0 m) produces smaller trees, but with the highest percentage of dry biomass in the trunk, and can show the best energy potential at a rotation age from 40 to 50 months. |
Palavras-Chave: |
Acúmulo de biomassa; Amazon; Biomass accumulation; Energy productivity; Produção de energia; Roraima. |
Thesagro: |
Reflorestamento. |
Thesaurus Nal: |
Amazonia; Brazil; Forest plantations. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/184575/1/Growth-biomass-and-energy-quality.pdf
|
Marc: |
LEADER 01907naa a2200289 a 4500 001 2101393 005 2018-12-13 008 2018 bl uuuu u00u1 u #d 100 1 $aTONINI, H. 245 $aGrowth, biomass, and energy quality of Acacia mangium timber grown at different spacings.$h[electronic resource] 260 $c2018 520 $aThe objective of this work was to assess the effect of spacing on the growth, biomass allocation, and wood quality for energy purposes of Acacia magium. A randomized complete block design was carried out with three replicates and five treatments consisting of trees planted at different spacings: 2.0x2.0, 2.5x2.5, 3.0x2.0, 3.0x2.5, and 3.0x3.0 m. At 67 months after planting, the following species parameters were evaluated: performance (mortality, diameter growth, height, bark factor, and bark and biomass volume yield) and wood energy quality (basic density, higher-calorific value, ash, fixed carbon, and volatile materials) through the analysis of variance. Plant spacing did not affect volume and biomass production per hectare nor wood quality for energy purposes. The widest spacing (3.0x3.0 m) provides better individual growth, and the narrowest one (2.0x2.0 m) produces smaller trees, but with the highest percentage of dry biomass in the trunk, and can show the best energy potential at a rotation age from 40 to 50 months. 650 $aAmazonia 650 $aBrazil 650 $aForest plantations 650 $aReflorestamento 653 $aAcúmulo de biomassa 653 $aAmazon 653 $aBiomass accumulation 653 $aEnergy productivity 653 $aProdução de energia 653 $aRoraima 700 1 $aSCHWENGBER, D. R. 700 1 $aMORALES, M. M. 700 1 $aMAGALHÃES, C. A. de S. 700 1 $aOLIVEIRA, J. M. F. de 773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 53, n. 7, p. 791-799, July 2018.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Florestas (CNPF) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
Registro Completo
Biblioteca(s): |
Embrapa Gado de Leite. |
Data corrente: |
06/02/2017 |
Data da última atualização: |
30/01/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
SIQUEIRA, L. G. B.; HANSEN, P. J. |
Afiliação: |
LUIZ GUSTAVO BRUNO SIQUEIRA, CNPGL; PETER J. HANSEN, University of Florida, Gainesville, Florida, USA. |
Título: |
Sex differences in response of the bovine embryo to colony-stimulating factor 2. |
Ano de publicação: |
2016 |
Fonte/Imprenta: |
Reproduction, n. 152, p. 645-654, 2016. |
Idioma: |
Inglês |
Conteúdo: |
We tested whether gene expression of the bovine morula is modified by CSF2 in a sex-dependent manner and if sex determines the effect of CSF2 on competence of embryos to become blastocysts. Embryos were produced in vitro using X- or Y-sorted semen and treated at Day 5 of culture with 10 ng/mL bovine CSF2 or control. In experiment 1, morulae were collected at Day 6 and biological replicates (n = 8) were evaluated for transcript abundance of 90 genes by RT-qPCR using the Fluidigm Delta Gene assay. Expression of more than one-third (33 of 90) of genes examined was affected by sex. The effect of CSF2 on gene expression was modified by sex (P < 0.05) for five genes (DDX3Y/DDX3X-like, NANOG, MYF6, POU5F1 and RIPK3) and tended (P < 0.10) to be modified by sex for five other genes (DAPK1, HOXA5, PPP2R3A, PTEN and TNFSF8). In experiment 2, embryos were treated at Day 5 with control or CSF2 and blastocysts were collected at Day 7 for immunolabeling to determine the number of inner cell mass (ICM) and trophectoderm (TE) cells. CSF2 increased the percent of putative zygotes that became blastocysts for females, but did not affect the development of males. There was no effect of CSF2 or interaction of CSF2 with sex on the total number of blastomeres in blastocysts or in the number of inner cell mass or trophectoderm cells. In conclusion, CSF2 exerted divergent responses on gene expression and development of female and male embryos. These results are evidence of sexually dimorphic responses of the preimplantation embryo to this embryokine. MenosWe tested whether gene expression of the bovine morula is modified by CSF2 in a sex-dependent manner and if sex determines the effect of CSF2 on competence of embryos to become blastocysts. Embryos were produced in vitro using X- or Y-sorted semen and treated at Day 5 of culture with 10 ng/mL bovine CSF2 or control. In experiment 1, morulae were collected at Day 6 and biological replicates (n = 8) were evaluated for transcript abundance of 90 genes by RT-qPCR using the Fluidigm Delta Gene assay. Expression of more than one-third (33 of 90) of genes examined was affected by sex. The effect of CSF2 on gene expression was modified by sex (P < 0.05) for five genes (DDX3Y/DDX3X-like, NANOG, MYF6, POU5F1 and RIPK3) and tended (P < 0.10) to be modified by sex for five other genes (DAPK1, HOXA5, PPP2R3A, PTEN and TNFSF8). In experiment 2, embryos were treated at Day 5 with control or CSF2 and blastocysts were collected at Day 7 for immunolabeling to determine the number of inner cell mass (ICM) and trophectoderm (TE) cells. CSF2 increased the percent of putative zygotes that became blastocysts for females, but did not affect the development of males. There was no effect of CSF2 or interaction of CSF2 with sex on the total number of blastomeres in blastocysts or in the number of inner cell mass or trophectoderm cells. In conclusion, CSF2 exerted divergent responses on gene expression and development of female and male embryos. These results a... Mostrar Tudo |
Palavras-Chave: |
CSF2; Embryokine. |
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/154808/1/Cnpgl-2016-Reproduction-Sex.pdf
|
Marc: |
LEADER 02045naa a2200157 a 4500 001 2062824 005 2023-01-30 008 2016 bl uuuu u00u1 u #d 100 1 $aSIQUEIRA, L. G. B. 245 $aSex differences in response of the bovine embryo to colony-stimulating factor 2.$h[electronic resource] 260 $c2016 520 $aWe tested whether gene expression of the bovine morula is modified by CSF2 in a sex-dependent manner and if sex determines the effect of CSF2 on competence of embryos to become blastocysts. Embryos were produced in vitro using X- or Y-sorted semen and treated at Day 5 of culture with 10 ng/mL bovine CSF2 or control. In experiment 1, morulae were collected at Day 6 and biological replicates (n = 8) were evaluated for transcript abundance of 90 genes by RT-qPCR using the Fluidigm Delta Gene assay. Expression of more than one-third (33 of 90) of genes examined was affected by sex. The effect of CSF2 on gene expression was modified by sex (P < 0.05) for five genes (DDX3Y/DDX3X-like, NANOG, MYF6, POU5F1 and RIPK3) and tended (P < 0.10) to be modified by sex for five other genes (DAPK1, HOXA5, PPP2R3A, PTEN and TNFSF8). In experiment 2, embryos were treated at Day 5 with control or CSF2 and blastocysts were collected at Day 7 for immunolabeling to determine the number of inner cell mass (ICM) and trophectoderm (TE) cells. CSF2 increased the percent of putative zygotes that became blastocysts for females, but did not affect the development of males. There was no effect of CSF2 or interaction of CSF2 with sex on the total number of blastomeres in blastocysts or in the number of inner cell mass or trophectoderm cells. In conclusion, CSF2 exerted divergent responses on gene expression and development of female and male embryos. These results are evidence of sexually dimorphic responses of the preimplantation embryo to this embryokine. 653 $aCSF2 653 $aEmbryokine 700 1 $aHANSEN, P. J. 773 $tReproduction$gn. 152, p. 645-654, 2016.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Gado de Leite (CNPGL) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
Nenhum registro encontrado para a expressão de busca informada. |
|
|