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Registro Completo |
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Biblioteca(s): |
Embrapa Clima Temperado. |
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Data corrente: |
16/03/2023 |
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Data da última atualização: |
17/03/2023 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
CASTRO, C. M.; PEREIRA, A. da S.; BRITO, G. G. de; REISSER JUNIOR, C.; EMYGDIO, B. M.; HEIDEN, G.; DUTRA, L. F.; SILVA, G. O. da; CARVALHO, A. D. F. de; LOPES, C. A.; PEREIRA, G. da S.; HAERTER, J. A.; OLIVEIRA, J. F. de; AZEVEDO, F. Q.; CORADIN, J. H.; KNEIB, R.; WOLTER, D.; GUZMÁN, R. |
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Afiliação: |
CAROLINE MARQUES CASTRO, CPACT; ARIONE DA SILVA PEREIRA, CPACT; GIOVANI GREIGH DE BRITO, CPACT; CARLOS REISSER JUNIOR, CPACT; BEATRIZ MARTI EMYGDIO, CPACT; GUSTAVO HEIDEN, CPACT; LEONARDO FERREIRA DUTRA, CPACT; GIOVANI OLEGARIO DA SILVA, CNPH; AGNALDO DONIZETE FERREIRA DE CARVALHO, CNPH; CARLOS ALBERTO LOPES, CNPH; GUILHERME DA SILVA PEREIRA, UNIVERSIDADE FEDERAL DE VIÇOSA; JANNI ANDRE HAERTER, CPACT; JOSE FAUSTINI DE OLIVEIRA, CPACT; FERNANDA QUINTANILHA AZEVEDO, CPACT; JULIANA HEY CORADIN, CPACT; RAQUEL KNEIB; DAIANA WOLTER, UNIVERSIDADE FEDERAL DE PELOTAS; RUTH GUZMÁN, UNIVERSIDADE FEDERAL DE PELOTAS. |
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Título: |
Advances of the Embrapa potato breeding program aiming tolerance to heat stress. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
In: WORLD POTATO CONGRESS, 11., 2022, Dublin, Ireland.Presentation Summaries and Speaker Biographies. Disponível online: https://wpc2022ireland.com/wp-content/uploads/2022/07/Abstract-Book-WPC-2022_01.07.pdf |
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Páginas: |
p. 201. |
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Idioma: |
Inglês |
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Notas: |
WPC 2022. |
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Conteúdo: |
The Brazilian Agricultural Research Corporation (Embrapa) coordinates a national potato breeding program, as well as hosting the potato genebank. |
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Thesagro: |
Batata. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1152445/1/Resumo-Castro.pdf
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Marc: |
LEADER 01268nam a2200349 a 4500
001 2152445
005 2023-03-17
008 2022 bl uuuu u00u1 u #d
100 1 $aCASTRO, C. M.
245 $aAdvances of the Embrapa potato breeding program aiming tolerance to heat stress.$h[electronic resource]
260 $aIn: WORLD POTATO CONGRESS, 11., 2022, Dublin, Ireland.Presentation Summaries and Speaker Biographies. Disponível online: https://wpc2022ireland.com/wp-content/uploads/2022/07/Abstract-Book-WPC-2022_01.07.pdf$c2022
300 $ap. 201.
500 $aWPC 2022.
520 $aThe Brazilian Agricultural Research Corporation (Embrapa) coordinates a national potato breeding program, as well as hosting the potato genebank.
650 $aBatata
700 1 $aPEREIRA, A. da S.
700 1 $aBRITO, G. G. de
700 1 $aREISSER JUNIOR, C.
700 1 $aEMYGDIO, B. M.
700 1 $aHEIDEN, G.
700 1 $aDUTRA, L. F.
700 1 $aSILVA, G. O. da
700 1 $aCARVALHO, A. D. F. de
700 1 $aLOPES, C. A.
700 1 $aPEREIRA, G. da S.
700 1 $aHAERTER, J. A.
700 1 $aOLIVEIRA, J. F. de
700 1 $aAZEVEDO, F. Q.
700 1 $aCORADIN, J. H.
700 1 $aKNEIB, R.
700 1 $aWOLTER, D.
700 1 $aGUZMÁN, R.
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Registro original: |
Embrapa Clima Temperado (CPACT) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agrobiologia. Para informações adicionais entre em contato com cnpab.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
03/12/1997 |
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Data da última atualização: |
03/12/1997 |
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Autoria: |
BODDEY, R. M.; OLIVEIRA, O. C. de; ALVES, B. J. R.; URQUIAGA, S. |
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Título: |
Field application of the 15N isotope dilution technique for the reliable quantification of plant-associated biological nitrogen fixation. |
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Ano de publicação: |
1995 |
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Fonte/Imprenta: |
Fertilizer Research, Netherlands, v.42, p.77-87, 1995. |
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Idioma: |
Inglês |
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Conteúdo: |
To apply the isotope dilution (ID) technique, it is necessary to grow the "N2-fixing" crop in a soil where the mineral N is labelled with 15N. Normally the "N2-fixing" crop and a suitable non-N2-fixing control crop are grown in the same labelled soil and the 15N enrichment of the control crop is assumed to be equal to the 15N enrichment of the nitrogen (N) derived from the soil in the "N2-fixing" crop. In this case the proportion of unlabelled N being derived from the air via biological N2 fixation (BNF) in the "N2-fixing" crop will be proportional to the dilution of the enrichment of the N derived from the labelled soil. To label the soil, the technique most often used is to add a single addition of 15N-labelled N fertilizer shortly before, at, or shortly after, the planting of the crops. Data in the literature clearly show that this technique results in a rapid fall in the 15N enrichment of soil mineral N with time. Under these conditions, if the control and the "N2-fixing" crops have different patterns of N uptake from the soil they will inevitably obtain different 15N enrichments in the soil-derived N. In this case the isotope dilution technique cannot be applied, or if it is, there will be an error introduced into, the estimate of the contribution of N derived from BNF. Several experiments are described which explore different strategies of application of the ID technique to attempt to attenuate the errors involved. The results suggest that it is wise to use slow-release forms of labelled N, or in some cases, multiple additions, to diminish temporal changes in the 15N enrichment of soil mineral N. The use of several control crops producers a range of different estimates of the BNF contributions to the "N2-fixing" crops, and the extent of this range gives a measure of the accuracy of the estimates. Likewise the use of more than one 15N enrichment technique in the same experiment will also give a range of estimates which can be treated similarly. The potential of other techniques, such as sequential harvesting of both control and test crops, are also discussed. MenosTo apply the isotope dilution (ID) technique, it is necessary to grow the "N2-fixing" crop in a soil where the mineral N is labelled with 15N. Normally the "N2-fixing" crop and a suitable non-N2-fixing control crop are grown in the same labelled soil and the 15N enrichment of the control crop is assumed to be equal to the 15N enrichment of the nitrogen (N) derived from the soil in the "N2-fixing" crop. In this case the proportion of unlabelled N being derived from the air via biological N2 fixation (BNF) in the "N2-fixing" crop will be proportional to the dilution of the enrichment of the N derived from the labelled soil. To label the soil, the technique most often used is to add a single addition of 15N-labelled N fertilizer shortly before, at, or shortly after, the planting of the crops. Data in the literature clearly show that this technique results in a rapid fall in the 15N enrichment of soil mineral N with time. Under these conditions, if the control and the "N2-fixing" crops have different patterns of N uptake from the soil they will inevitably obtain different 15N enrichments in the soil-derived N. In this case the isotope dilution technique cannot be applied, or if it is, there will be an error introduced into, the estimate of the contribution of N derived from BNF. Several experiments are described which explore different strategies of application of the ID technique to attempt to attenuate the errors involved. The results suggest that it is wise to use slow-releas... Mostrar Tudo |
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Palavras-Chave: |
BNF; FBN; Fixacao biologica de nitrogenio. |
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Thesagro: |
Diluição Isotópica. |
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Thesaurus NAL: |
nitrogen fixation; tracer techniques. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02805naa a2200229 a 4500
001 1620062
005 1997-12-03
008 1995 bl --- 0-- u #d
100 1 $aBODDEY, R. M.
245 $aField application of the 15N isotope dilution technique for the reliable quantification of plant-associated biological nitrogen fixation.
260 $c1995
520 $aTo apply the isotope dilution (ID) technique, it is necessary to grow the "N2-fixing" crop in a soil where the mineral N is labelled with 15N. Normally the "N2-fixing" crop and a suitable non-N2-fixing control crop are grown in the same labelled soil and the 15N enrichment of the control crop is assumed to be equal to the 15N enrichment of the nitrogen (N) derived from the soil in the "N2-fixing" crop. In this case the proportion of unlabelled N being derived from the air via biological N2 fixation (BNF) in the "N2-fixing" crop will be proportional to the dilution of the enrichment of the N derived from the labelled soil. To label the soil, the technique most often used is to add a single addition of 15N-labelled N fertilizer shortly before, at, or shortly after, the planting of the crops. Data in the literature clearly show that this technique results in a rapid fall in the 15N enrichment of soil mineral N with time. Under these conditions, if the control and the "N2-fixing" crops have different patterns of N uptake from the soil they will inevitably obtain different 15N enrichments in the soil-derived N. In this case the isotope dilution technique cannot be applied, or if it is, there will be an error introduced into, the estimate of the contribution of N derived from BNF. Several experiments are described which explore different strategies of application of the ID technique to attempt to attenuate the errors involved. The results suggest that it is wise to use slow-release forms of labelled N, or in some cases, multiple additions, to diminish temporal changes in the 15N enrichment of soil mineral N. The use of several control crops producers a range of different estimates of the BNF contributions to the "N2-fixing" crops, and the extent of this range gives a measure of the accuracy of the estimates. Likewise the use of more than one 15N enrichment technique in the same experiment will also give a range of estimates which can be treated similarly. The potential of other techniques, such as sequential harvesting of both control and test crops, are also discussed.
650 $anitrogen fixation
650 $atracer techniques
650 $aDiluição Isotópica
653 $aBNF
653 $aFBN
653 $aFixacao biologica de nitrogenio
700 1 $aOLIVEIRA, O. C. de
700 1 $aALVES, B. J. R.
700 1 $aURQUIAGA, S.
773 $tFertilizer Research, Netherlands$gv.42, p.77-87, 1995.
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Embrapa Agrobiologia (CNPAB) |
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