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Registro Completo |
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Biblioteca(s): |
Embrapa Clima Temperado. |
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Data corrente: |
22/10/2021 |
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Data da última atualização: |
22/10/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MABONI, C.; BREMM, T.; AGUIAR, L. J. G.; SCIVITTARO, W. B.; SOUZA, V. de A.; ZIMERMANN, H. R.; TEICHRIEB, C. A.; OLIVEIRA, P. E. S. de; HERDIES, D. L.; DEGRAZIA, G. A.; ROBERTI, D. R. |
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Afiliação: |
CRISTIANO MABONI, UFSM; TIAGO BREMM, UFSM; LEONARDO JOSÉ GONÇALVES AGUIAR, UFPEL; WALKYRIA BUENO SCIVITTARO, CPACT; VANESSA DE ARRUDA SOUZA; HANS ROGÉRIO ZIMERMANN, UFSM; CLAUDIO ALBERTO TEICHRIEB, UFSM; PABLO ELI SOARES DE OLIVEIRA, UFSM; DIRCEU LUIS HERDIES, CPTEC; GERVÁSIO ANNES DEGRAZIA, UFSM; DÉBORA REGINA ROBERTI, UFSM. |
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Título: |
The fallow period plays an important role in annual CH4 emission in a rice paddy in southern Brazil. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Sustainability, v. 13, n. 20, 11336, 2021. |
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ISSN: |
2071-1050 |
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DOI: |
doi.org/10.3390/su132011336 |
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Idioma: |
Inglês |
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Conteúdo: |
Paddy fields are significant anthropogenic sources of methane (CH4) emissions. In southern Brazil, rice is grown in lowland flooded areas once a year, followed by a long fallow period. This study aimed to measure CH4 fluxes in a rice paddy field in southern Brazil during the rice-growing season of 2015/2016 and the following fallow period. The fluxes were estimated using the eddy covariance (EC) technique and soil chamber (SC). Diurnal and seasonal variations of CH4 fluxes and potential meteorological drivers were analyzed. The CH4 fluxes showed distinct diurnal variations in each analyzed subperiod (vegetative, reproductive, pre-harvest, no rice, and land preparation), characterized by a single-peak diurnal pattern. The variables that most influenced methane emissions were air and surface temperatures. In the growing season, the rice vegetative stage was responsible for most of the measured emissions. The accumulated annual emission estimated was 44.88 g CH4 m?2 y?1, being 64% (28.50 g CH4 m?2) due to the rice-growing season and 36% (16.38 g CH4 m?2) due to the fallow period. These results show the importance of including fallow periods in strategies to mitigate methane emissions in flood irrigated rice-growing areas. |
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Palavras-Chave: |
Fluxo de CH4. |
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Thesagro: |
Arroz; Metano; Pousio. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/227108/1/Artigo-The-Fallow-Period-Plays-Sustainability.pdf
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Marc: |
LEADER 02119naa a2200313 a 4500
001 2135490
005 2021-10-22
008 2021 bl uuuu u00u1 u #d
022 $a2071-1050
024 7 $adoi.org/10.3390/su132011336$2DOI
100 1 $aMABONI, C.
245 $aThe fallow period plays an important role in annual CH4 emission in a rice paddy in southern Brazil.$h[electronic resource]
260 $c2021
520 $aPaddy fields are significant anthropogenic sources of methane (CH4) emissions. In southern Brazil, rice is grown in lowland flooded areas once a year, followed by a long fallow period. This study aimed to measure CH4 fluxes in a rice paddy field in southern Brazil during the rice-growing season of 2015/2016 and the following fallow period. The fluxes were estimated using the eddy covariance (EC) technique and soil chamber (SC). Diurnal and seasonal variations of CH4 fluxes and potential meteorological drivers were analyzed. The CH4 fluxes showed distinct diurnal variations in each analyzed subperiod (vegetative, reproductive, pre-harvest, no rice, and land preparation), characterized by a single-peak diurnal pattern. The variables that most influenced methane emissions were air and surface temperatures. In the growing season, the rice vegetative stage was responsible for most of the measured emissions. The accumulated annual emission estimated was 44.88 g CH4 m?2 y?1, being 64% (28.50 g CH4 m?2) due to the rice-growing season and 36% (16.38 g CH4 m?2) due to the fallow period. These results show the importance of including fallow periods in strategies to mitigate methane emissions in flood irrigated rice-growing areas.
650 $aArroz
650 $aMetano
650 $aPousio
653 $aFluxo de CH4
700 1 $aBREMM, T.
700 1 $aAGUIAR, L. J. G.
700 1 $aSCIVITTARO, W. B.
700 1 $aSOUZA, V. de A.
700 1 $aZIMERMANN, H. R.
700 1 $aTEICHRIEB, C. A.
700 1 $aOLIVEIRA, P. E. S. de
700 1 $aHERDIES, D. L.
700 1 $aDEGRAZIA, G. A.
700 1 $aROBERTI, D. R.
773 $tSustainability$gv. 13, n. 20, 11336, 2021.
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Registro original: |
Embrapa Clima Temperado (CPACT) |
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Origem |
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Cutter |
Registro |
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Registro Completo
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
15/10/2020 |
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Data da última atualização: |
06/07/2021 |
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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: |
BERNARDINO, K. C.; MENEZES, C. B. de; SOUSA, S. M. de; GUIMARÃES, C. T.; CARNEIRO, P. C. S.; SCHAFFERT, R. E.; KOCHIAN, L. V.; HUFNAGEL, B.; PASTINA, M. M.; MAGALHAES, J. V. de. |
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Afiliação: |
Karine C. Bernardino, Universidade Federal de Viçosa; CICERO BESERRA DE MENEZES, CNPMS; SYLVIA MORAIS DE SOUSA TINOCO, CNPMS; CLAUDIA TEIXEIRA GUIMARAES, CNPMS; Pedro C. S. Carneiro, Universidade Federal de Viçosa; ROBERT EUGENE SCHAFFERT, CNPMS; Leon V. Kochian, University of Saskatchewan; Barbara Hufnagel, University of Montpellier; MARIA MARTA PASTINA, CNPMS; JURANDIR VIEIRA DE MAGALHAES, CNPMS. |
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Título: |
Association mapping and genomic selection for sorghum adaptation to tropical soils of Brazil in a sorghum multiparental random mating population. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Theoretical and Applied Genetics, v. 134, p. 295-312, 2021. |
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DOI: |
https://doi.org/10.1007/s00122-020-03697-8 |
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Idioma: |
Inglês |
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Conteúdo: |
Tropical soils where low phosphorus (P) and aluminum (Al) toxicity limit sorghum [Sorghum bicolor (L.) Moench] production are widespread in the developing world. We report on BRP13R, a multiparental random mating population (MPRMP), which is commonly used in sorghum recurrent selection targeting tropical soil adaptation. Recombination dissipated much of BRP13R?s likely original population structure and average linkage disequilibrium (LD) persisted up to 2.5 Mb, establishing BRP13R as a middle ground between biparental populations and sorghum association panels. Genome-wide association mapping (GWAS) identifed conserved QTL from previous studies, such as for root morphology and grain yield under low-P, and indicated the importance of dominance in the genetic architecture of grain yield. By overlapping consensus QTL regions, we mapped two candidate P efciency genes to a ~5 Mb region on chromosomes 6 (ALMT) and 9 (PHO2). Remarkably, we fnd that only 200 progeny genotyped with~45,000 markers in BRP13R can lead to GWAS-based positional cloning of naturally rare, subpopulation-specifc alleles, such as for SbMATE-conditioned Al tolerance. Genomic selection was found to be useful in such MP-RMP, particularly if markers in LD with major genes are ftted as fxed efects into GBLUP models accommodating dominance. Shifts in allele frequencies in progeny contrasting for grain yield indicated that intermediate to minor-efect genes on P efciency, such as SbPSTOL1 genes, can be employed in pre-breeding via allele mining in the base population. Therefore, MP-RMPs such as BRP13R emerge as multipurpose resources for efcient gene discovery and deployment for breeding sorghum cultivars adapted to tropical soils. MenosTropical soils where low phosphorus (P) and aluminum (Al) toxicity limit sorghum [Sorghum bicolor (L.) Moench] production are widespread in the developing world. We report on BRP13R, a multiparental random mating population (MPRMP), which is commonly used in sorghum recurrent selection targeting tropical soil adaptation. Recombination dissipated much of BRP13R?s likely original population structure and average linkage disequilibrium (LD) persisted up to 2.5 Mb, establishing BRP13R as a middle ground between biparental populations and sorghum association panels. Genome-wide association mapping (GWAS) identifed conserved QTL from previous studies, such as for root morphology and grain yield under low-P, and indicated the importance of dominance in the genetic architecture of grain yield. By overlapping consensus QTL regions, we mapped two candidate P efciency genes to a ~5 Mb region on chromosomes 6 (ALMT) and 9 (PHO2). Remarkably, we fnd that only 200 progeny genotyped with~45,000 markers in BRP13R can lead to GWAS-based positional cloning of naturally rare, subpopulation-specifc alleles, such as for SbMATE-conditioned Al tolerance. Genomic selection was found to be useful in such MP-RMP, particularly if markers in LD with major genes are ftted as fxed efects into GBLUP models accommodating dominance. Shifts in allele frequencies in progeny contrasting for grain yield indicated that intermediate to minor-efect genes on P efciency, such as SbPSTOL1 genes, can be employed in pr... Mostrar Tudo |
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Palavras-Chave: |
Seleção genômica. |
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Thesagro: |
Gene; Genética Vegetal; Melhoramento Genético Vegetal; Sorgo. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/223127/1/Association-mapping.pdf
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Marc: |
LEADER 02692naa a2200301 a 4500
001 2125512
005 2021-07-06
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s00122-020-03697-8$2DOI
100 1 $aBERNARDINO, K. C.
245 $aAssociation mapping and genomic selection for sorghum adaptation to tropical soils of Brazil in a sorghum multiparental random mating population.$h[electronic resource]
260 $c2021
520 $aTropical soils where low phosphorus (P) and aluminum (Al) toxicity limit sorghum [Sorghum bicolor (L.) Moench] production are widespread in the developing world. We report on BRP13R, a multiparental random mating population (MPRMP), which is commonly used in sorghum recurrent selection targeting tropical soil adaptation. Recombination dissipated much of BRP13R?s likely original population structure and average linkage disequilibrium (LD) persisted up to 2.5 Mb, establishing BRP13R as a middle ground between biparental populations and sorghum association panels. Genome-wide association mapping (GWAS) identifed conserved QTL from previous studies, such as for root morphology and grain yield under low-P, and indicated the importance of dominance in the genetic architecture of grain yield. By overlapping consensus QTL regions, we mapped two candidate P efciency genes to a ~5 Mb region on chromosomes 6 (ALMT) and 9 (PHO2). Remarkably, we fnd that only 200 progeny genotyped with~45,000 markers in BRP13R can lead to GWAS-based positional cloning of naturally rare, subpopulation-specifc alleles, such as for SbMATE-conditioned Al tolerance. Genomic selection was found to be useful in such MP-RMP, particularly if markers in LD with major genes are ftted as fxed efects into GBLUP models accommodating dominance. Shifts in allele frequencies in progeny contrasting for grain yield indicated that intermediate to minor-efect genes on P efciency, such as SbPSTOL1 genes, can be employed in pre-breeding via allele mining in the base population. Therefore, MP-RMPs such as BRP13R emerge as multipurpose resources for efcient gene discovery and deployment for breeding sorghum cultivars adapted to tropical soils.
650 $aGene
650 $aGenética Vegetal
650 $aMelhoramento Genético Vegetal
650 $aSorgo
653 $aSeleção genômica
700 1 $aMENEZES, C. B. de
700 1 $aSOUSA, S. M. de
700 1 $aGUIMARÃES, C. T.
700 1 $aCARNEIRO, P. C. S.
700 1 $aSCHAFFERT, R. E.
700 1 $aKOCHIAN, L. V.
700 1 $aHUFNAGEL, B.
700 1 $aPASTINA, M. M.
700 1 $aMAGALHAES, J. V. de
773 $tTheoretical and Applied Genetics$gv. 134, p. 295-312, 2021.
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Embrapa Milho e Sorgo (CNPMS) |
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