| |
|
|
 | 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 |
|
Biblioteca(s): |
Embrapa Milho e Sorgo. |
|
Data corrente: |
04/10/2018 |
|
Data da última atualização: |
05/02/2019 |
|
Tipo da produção científica: |
Capítulo em Livro Técnico-Científico |
|
Autoria: |
GUIMARÃES, C. T.; SILVA, L. da C.; MENDES, F. F.; PASTINA, M. M.; SOUZA, I. R. P. de; DAMASCENO, C. M. B. |
|
Afiliação: |
CLAUDIA TEIXEIRA GUIMARAES, CNPMS; Luciano da Costa Silva, SAS Institute; Flávia Ferreira Mendes; MARIA MARTA PASTINA, CNPMS; ISABEL REGINA PRAZERES DE SOUZA, CNPMS; CYNTHIA MARIA BORGES DAMASCENO, CNPMS. |
|
Título: |
Mapeamento de QTLs e seleção assistida por marcadores moleculares. |
|
Ano de publicação: |
2018 |
|
Fonte/Imprenta: |
In: DELIMA, R. O.; BORÉM, A. (Ed.). Melhoramento de milho. Viçosa, MG: Universidade Federal de Viçosa, 2018. cap. 13, p. 307-328. |
|
Idioma: |
Português |
|
Conteúdo: |
O objetivo deste capítulo é traçar um breve histórico do desenvolvimento de marcadores moleculares, bem como destacar os principais métodos genético-estatísticos de mapeamento de QTL, abordando suas aplicações mais recentes no melhoramento genético do milho. |
|
Thesagro: |
Marcador Molecular; Melhoramento Genético Vegetal. |
|
Categoria do assunto: |
G Melhoramento Genético |
|
Marc: |
LEADER 00965naa a2200205 a 4500
001 2096855
005 2019-02-05
008 2018 bl uuuu u00u1 u #d
100 1 $aGUIMARÃES, C. T.
245 $aMapeamento de QTLs e seleção assistida por marcadores moleculares.$h[electronic resource]
260 $c2018
520 $aO objetivo deste capítulo é traçar um breve histórico do desenvolvimento de marcadores moleculares, bem como destacar os principais métodos genético-estatísticos de mapeamento de QTL, abordando suas aplicações mais recentes no melhoramento genético do milho.
650 $aMarcador Molecular
650 $aMelhoramento Genético Vegetal
700 1 $aSILVA, L. da C.
700 1 $aMENDES, F. F.
700 1 $aPASTINA, M. M.
700 1 $aSOUZA, I. R. P. de
700 1 $aDAMASCENO, C. M. B.
773 $tIn: DELIMA, R. O.; BORÉM, A. (Ed.). Melhoramento de milho. Viçosa, MG: Universidade Federal de Viçosa, 2018. cap. 13, p. 307-328.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
| Acesso ao texto completo restrito à biblioteca da Embrapa Soja. Para informações adicionais entre em contato com valeria.cardoso@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Agrobiologia; Embrapa Soja. |
|
Data corrente: |
11/04/2023 |
|
Data da última atualização: |
16/02/2024 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
A - 3 |
|
Autoria: |
MONTEIRO, R. C.; FRANCHINI, J. C.; JANTALIA, C. P.; URQUIAGA, S.; ALVES, B. J. R.; BODDEY, R. M. |
|
Afiliação: |
RAFAEL CASSADOR MONTEIRO, UFRRJ; JULIO CEZAR FRANCHINI DOS SANTOS, CNPSO; CLAUDIA POZZI JANTALIA, CNPAB; SEGUNDO SACRAMENTO U CABALLERO, CNPAB; BRUNO JOSE RODRIGUES ALVES, CNPAB; ROBERT MICHAEL BODDEY, CNPAB. |
|
Título: |
Soil nitrous oxide emissions from a soybean-wheat succession under different tillage systems in Southern Brazil. |
|
Ano de publicação: |
2023 |
|
Fonte/Imprenta: |
Revista Brasileira de Ciência do Solo, v. 47, Special Issue, e0220135, 2023. |
|
Páginas: |
18 p. |
|
DOI: |
10.36783/18069657rbcs20220135 |
|
Idioma: |
Inglês |
|
Conteúdo: |
No-tillage (NT) has been largely adopted in Brazil as a strategy for soil conservation, but for the last decade, there have been governmental incentives for its adoption arising from its potential for soil C accumulation. Notwithstanding, the soil mulch formed from crop residues favors the maintenance of soil moisture and nutrients in the upper soil layers, which stimulates soil microbial activity and may increase the potential for nitrous oxide (N2O) emissions. In addition, double-cropping systems in the same year are typical in Brazil and the impact on the fraction of fertilizer N lost as N2O needs to be evaluated. This study aimed to assess the influence of soil tillage and N fertilization on N2O emissions in a wheat-soybean succession system as commonly practiced in southern Brazil. The experiment was carried out at Embrapa Soybean research station located in Southern Brazil. Treatments were conventional tillage (CT) and no-tillage (NT), with and without nitrogen fertilization for the wheat and no N fertilizer for the soybean. Closed-static chambers were used to monitor N2O fluxes for two consecutive years. Together with gas monitoring, soil samples were also taken and analyzed for mineral N, soil moisture and labile carbon. Soybean yields were higher under NT, which seemed to be the result of a higher soil water availability that helped to overcome extended periods without rainfall. Soil N2O emissions were similar between CT and NT, with just a tendency for higher emissions under NT. The highest emissions occurred from the soybean crop. In the second year under NT, the emissions from the soybean crop were higher when preceded by N-fertilized wheat, but the converse was true under CT. None of the soil variables consistently correlated with N2O emissions, with mineral-N as the best predictor in the second wheat cycle and soil moisture in the first soybean cycle. Calculated emission factors were not statistically different between CT and NT and consistently lower than the IPCC default of 1 %. The calculated N2O emission intensity by relating N2O emission to grain yield showed an environmental advantage of NT compared to CT by presenting a 44 % reduction in soybean and similar values for fertilized wheat. MenosNo-tillage (NT) has been largely adopted in Brazil as a strategy for soil conservation, but for the last decade, there have been governmental incentives for its adoption arising from its potential for soil C accumulation. Notwithstanding, the soil mulch formed from crop residues favors the maintenance of soil moisture and nutrients in the upper soil layers, which stimulates soil microbial activity and may increase the potential for nitrous oxide (N2O) emissions. In addition, double-cropping systems in the same year are typical in Brazil and the impact on the fraction of fertilizer N lost as N2O needs to be evaluated. This study aimed to assess the influence of soil tillage and N fertilization on N2O emissions in a wheat-soybean succession system as commonly practiced in southern Brazil. The experiment was carried out at Embrapa Soybean research station located in Southern Brazil. Treatments were conventional tillage (CT) and no-tillage (NT), with and without nitrogen fertilization for the wheat and no N fertilizer for the soybean. Closed-static chambers were used to monitor N2O fluxes for two consecutive years. Together with gas monitoring, soil samples were also taken and analyzed for mineral N, soil moisture and labile carbon. Soybean yields were higher under NT, which seemed to be the result of a higher soil water availability that helped to overcome extended periods without rainfall. Soil N2O emissions were similar between CT and NT, with just a tendency for higher emiss... Mostrar Tudo |
|
Thesagro: |
Glycine Max; Soja; Triticum Aestivum. |
|
Thesaurus NAL: |
Greenhouse gases; Soil minerals; Soybeans. |
|
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
|
Marc: |
LEADER 03083naa a2200277 a 4500
001 2153095
005 2024-02-16
008 2023 bl uuuu u00u1 u #d
024 7 $a10.36783/18069657rbcs20220135$2DOI
100 1 $aMONTEIRO, R. C.
245 $aSoil nitrous oxide emissions from a soybean-wheat succession under different tillage systems in Southern Brazil.$h[electronic resource]
260 $c2023
300 $a18 p.
520 $aNo-tillage (NT) has been largely adopted in Brazil as a strategy for soil conservation, but for the last decade, there have been governmental incentives for its adoption arising from its potential for soil C accumulation. Notwithstanding, the soil mulch formed from crop residues favors the maintenance of soil moisture and nutrients in the upper soil layers, which stimulates soil microbial activity and may increase the potential for nitrous oxide (N2O) emissions. In addition, double-cropping systems in the same year are typical in Brazil and the impact on the fraction of fertilizer N lost as N2O needs to be evaluated. This study aimed to assess the influence of soil tillage and N fertilization on N2O emissions in a wheat-soybean succession system as commonly practiced in southern Brazil. The experiment was carried out at Embrapa Soybean research station located in Southern Brazil. Treatments were conventional tillage (CT) and no-tillage (NT), with and without nitrogen fertilization for the wheat and no N fertilizer for the soybean. Closed-static chambers were used to monitor N2O fluxes for two consecutive years. Together with gas monitoring, soil samples were also taken and analyzed for mineral N, soil moisture and labile carbon. Soybean yields were higher under NT, which seemed to be the result of a higher soil water availability that helped to overcome extended periods without rainfall. Soil N2O emissions were similar between CT and NT, with just a tendency for higher emissions under NT. The highest emissions occurred from the soybean crop. In the second year under NT, the emissions from the soybean crop were higher when preceded by N-fertilized wheat, but the converse was true under CT. None of the soil variables consistently correlated with N2O emissions, with mineral-N as the best predictor in the second wheat cycle and soil moisture in the first soybean cycle. Calculated emission factors were not statistically different between CT and NT and consistently lower than the IPCC default of 1 %. The calculated N2O emission intensity by relating N2O emission to grain yield showed an environmental advantage of NT compared to CT by presenting a 44 % reduction in soybean and similar values for fertilized wheat.
650 $aGreenhouse gases
650 $aSoil minerals
650 $aSoybeans
650 $aGlycine Max
650 $aSoja
650 $aTriticum Aestivum
700 1 $aFRANCHINI, J. C.
700 1 $aJANTALIA, C. P.
700 1 $aURQUIAGA, S.
700 1 $aALVES, B. J. R.
700 1 $aBODDEY, R. M.
773 $tRevista Brasileira de Ciência do Solo$gv. 47, Special Issue, e0220135, 2023.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Soja (CNPSO) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
