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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
09/08/2006 |
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Data da última atualização: |
03/12/2015 |
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Autoria: |
FERRER, J. L. R.; MAGALHAES, P. C.; ALVES, J. D.; VASCONCELLOS, C. A.; DELU FILHO, N.; FRIES, D. D.; MAGALHAES, M. M.; PURCINO, A. A. C. |
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Afiliação: |
PAULO CESAR MAGALHAES, CNPMS; ANTONIO ALVARO CORSETTI PURCINO, CNPMS. |
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Título: |
Calcium partially relieves the deleterius effects of hypoxia on a maize cultivar selected for waterlogging tolerance. |
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Ano de publicação: |
2005 |
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Fonte/Imprenta: |
Revista Brasileira de Milho e Sorgo, Sete Lagoas, v. 4, n. 3, p. 381-389, 2005. |
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Idioma: |
Inglês |
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Conteúdo: |
Low soil oxygen concentrations due to waterlogging or transient flooding severely reduce maize production. However, genotypes with tolerance or even resistance to hypoxia develop morphological and biochemical adaptation mechanisms which may prove to be useful criteria for the selection and breeding of new improved genotypes. The objective of this work was to evaluate the effect of levels and modes of application of calcium sources on biomass yield, the contents of total soluble sugars and reduced sugars and on the activities of invertase isoforms and phosphoenolpyruvate carboxylase, in a maize variety (BRS 4154) derived from the 14th selection cycle for tolerance to transient soil flooding conditions, when cultivated under waterlogging conditions. The study was carried out in a greenhouse, utilizing 20 kg pots, filled with a lowland soil. The effects of two sources of calcium (CaCl2, 300 kg ha-1 and CaSO4, 500 and 1.500 kg ha-1) and three modes of application (applied 8 cm below surface, mixed with the whole soil volume and surface application) were tested in soils kept at field capacity and waterlogged after plants reached growth stage V6. Above ground biomass yield, the contents of total soluble sugars and reducing sugars and the activities of the neutral citosol (INC), acid vacuolar (IAV), acid cell wall invertases and phosphoenolpyruvate carboxylase were determined at the onset of flowering. Calcium application partially relieved the deleterious effect of waterlogging on biomass yield and the activities of INC, IAPC and PEPcase. MenosLow soil oxygen concentrations due to waterlogging or transient flooding severely reduce maize production. However, genotypes with tolerance or even resistance to hypoxia develop morphological and biochemical adaptation mechanisms which may prove to be useful criteria for the selection and breeding of new improved genotypes. The objective of this work was to evaluate the effect of levels and modes of application of calcium sources on biomass yield, the contents of total soluble sugars and reduced sugars and on the activities of invertase isoforms and phosphoenolpyruvate carboxylase, in a maize variety (BRS 4154) derived from the 14th selection cycle for tolerance to transient soil flooding conditions, when cultivated under waterlogging conditions. The study was carried out in a greenhouse, utilizing 20 kg pots, filled with a lowland soil. The effects of two sources of calcium (CaCl2, 300 kg ha-1 and CaSO4, 500 and 1.500 kg ha-1) and three modes of application (applied 8 cm below surface, mixed with the whole soil volume and surface application) were tested in soils kept at field capacity and waterlogged after plants reached growth stage V6. Above ground biomass yield, the contents of total soluble sugars and reducing sugars and the activities of the neutral citosol (INC), acid vacuolar (IAV), acid cell wall invertases and phosphoenolpyruvate carboxylase were determined at the onset of flowering. Calcium application partially relieved the deleterious effect of waterlogging on... Mostrar Tudo |
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Palavras-Chave: |
BRS 4154; PEPcase; transient waterlogging. |
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Thesagro: |
Invertase. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/30467/1/Calcium-partially.pdf
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Marc: |
LEADER 02343naa a2200253 a 4500
001 1489518
005 2015-12-03
008 2005 bl uuuu u00u1 u #d
100 1 $aFERRER, J. L. R.
245 $aCalcium partially relieves the deleterius effects of hypoxia on a maize cultivar selected for waterlogging tolerance.$h[electronic resource]
260 $c2005
520 $aLow soil oxygen concentrations due to waterlogging or transient flooding severely reduce maize production. However, genotypes with tolerance or even resistance to hypoxia develop morphological and biochemical adaptation mechanisms which may prove to be useful criteria for the selection and breeding of new improved genotypes. The objective of this work was to evaluate the effect of levels and modes of application of calcium sources on biomass yield, the contents of total soluble sugars and reduced sugars and on the activities of invertase isoforms and phosphoenolpyruvate carboxylase, in a maize variety (BRS 4154) derived from the 14th selection cycle for tolerance to transient soil flooding conditions, when cultivated under waterlogging conditions. The study was carried out in a greenhouse, utilizing 20 kg pots, filled with a lowland soil. The effects of two sources of calcium (CaCl2, 300 kg ha-1 and CaSO4, 500 and 1.500 kg ha-1) and three modes of application (applied 8 cm below surface, mixed with the whole soil volume and surface application) were tested in soils kept at field capacity and waterlogged after plants reached growth stage V6. Above ground biomass yield, the contents of total soluble sugars and reducing sugars and the activities of the neutral citosol (INC), acid vacuolar (IAV), acid cell wall invertases and phosphoenolpyruvate carboxylase were determined at the onset of flowering. Calcium application partially relieved the deleterious effect of waterlogging on biomass yield and the activities of INC, IAPC and PEPcase.
650 $aInvertase
653 $aBRS 4154
653 $aPEPcase
653 $atransient waterlogging
700 1 $aMAGALHAES, P. C.
700 1 $aALVES, J. D.
700 1 $aVASCONCELLOS, C. A.
700 1 $aDELU FILHO, N.
700 1 $aFRIES, D. D.
700 1 $aMAGALHAES, M. M.
700 1 $aPURCINO, A. A. C.
773 $tRevista Brasileira de Milho e Sorgo, Sete Lagoas$gv. 4, n. 3, p. 381-389, 2005.
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Recursos Genéticos e Biotecnologia. Para informações adicionais entre em contato com cenargen.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Recursos Genéticos e Biotecnologia. |
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Data corrente: |
06/11/2006 |
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Data da última atualização: |
02/06/2022 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
NAVAJAS, M.; NAVIA, D.; MORAES, G. J. de. |
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Título: |
American origin of the coconut mite, Aceria guerreronis, suggested by genetic and morphological evidence: implications for biological control and quarantine measures. |
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Ano de publicação: |
2006 |
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Fonte/Imprenta: |
In: INTERNATIONAL CONGRESS OF ACAROLOGY, 12., 2006, Amsterdam, Netherlands. Abstract book... Amsterdam: University of Amsterdam, 2006. |
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Páginas: |
p. 136. |
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Idioma: |
Inglês |
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Palavras-Chave: |
Medidas quarentenárias. |
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Thesagro: |
Ácaro; Aceria guerreronis; Coco; Controle Biológico. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00744nam a2200193 a 4500
001 1187829
005 2022-06-02
008 2006 bl uuuu u00u1 u #d
100 1 $aNAVAJAS, M.
245 $aAmerican origin of the coconut mite, Aceria guerreronis, suggested by genetic and morphological evidence$bimplications for biological control and quarantine measures.$h[electronic resource]
260 $aIn: INTERNATIONAL CONGRESS OF ACAROLOGY, 12., 2006, Amsterdam, Netherlands. Abstract book... Amsterdam: University of Amsterdam$c2006
300 $ap. 136.
650 $aÁcaro
650 $aAceria guerreronis
650 $aCoco
650 $aControle Biológico
653 $aMedidas quarentenárias
700 1 $aNAVIA, D.
700 1 $aMORAES, G. J. de
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Embrapa Recursos Genéticos e Biotecnologia (CENARGEN) |
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