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Registro Completo |
Biblioteca(s): |
Embrapa Milho e Sorgo. |
Data corrente: |
01/09/1997 |
Data da última atualização: |
12/06/2018 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
PURCINO, A. A. C.; PAIVA, E.; SILVA, M. R.; ANDRADE, S. R. M. |
Afiliação: |
ANTONIO ALVARO CORSETTI PURCINO, CNPMS. |
Título: |
Influence of Azospirillum inoculation and nitrogen supply on grain yield, and carbon: and nitrogen-assimilating enzymes in maize. |
Ano de publicação: |
1996 |
Fonte/Imprenta: |
Journal of Plant Nutrition, New York, v. 19, n. 7, p. 1045-1060, 1996. |
Idioma: |
Inglês |
Conteúdo: |
Nitrogen (N) supply increased yield, leaf % N at 10 days after silking (DAS) and at harvesting, the contents of ribulose-1,5-bisphosphate carboxylase (RUBISCO) and soluble protein, and the activities of phosphoenolpyruvate carboxylase (PEPC), and ferredoxin-glutamate synthase (fd-GOGAT), but not of glutamine synthetase (GS) for six tropical maize (Zea mays L.) cultivars. Compared to plants fertilized with 10 kg N/ha, plants inoculated with a mixture of Azospirillum sp. (strains Sp 82, Sp 242, and Sp Eng-501) had increased grain % protein, and leaf % N at 10 DAS and at harvest, but not grain yield. Compared to plants fertilized with either 60 or 180 kg N/ha, Azospirillum inoculated plants yielded significantly less, and except for GS activity, which was not influenced by N supply, had lower values for leaf % N at 10 DAS and at harvest, for contents of soluble protein and RUBISCO, and for the activities of PEPC and fd-GOGAT. Yield was positively correlated to leaf % N both at 10 DAS and at harvest to the contents of soluble protein and RUBISCO, and to the activities of PEPC and Fd-GOGAT, but not of GS, when RUBISCO contents and enzyme activities were calculated per g fresh weight/min. However, when enzyme contents and enzyme activities were expressed per mg soluble protein/min, yield was correlated positively to RUBISCO and PEPC, but negatively to GS. These results give syupport to the hypothesis that RUBISCO, fd-GOGAT, and PEPC may be used as biochemical markers for the development of genotypes with (...) MenosNitrogen (N) supply increased yield, leaf % N at 10 days after silking (DAS) and at harvesting, the contents of ribulose-1,5-bisphosphate carboxylase (RUBISCO) and soluble protein, and the activities of phosphoenolpyruvate carboxylase (PEPC), and ferredoxin-glutamate synthase (fd-GOGAT), but not of glutamine synthetase (GS) for six tropical maize (Zea mays L.) cultivars. Compared to plants fertilized with 10 kg N/ha, plants inoculated with a mixture of Azospirillum sp. (strains Sp 82, Sp 242, and Sp Eng-501) had increased grain % protein, and leaf % N at 10 DAS and at harvest, but not grain yield. Compared to plants fertilized with either 60 or 180 kg N/ha, Azospirillum inoculated plants yielded significantly less, and except for GS activity, which was not influenced by N supply, had lower values for leaf % N at 10 DAS and at harvest, for contents of soluble protein and RUBISCO, and for the activities of PEPC and fd-GOGAT. Yield was positively correlated to leaf % N both at 10 DAS and at harvest to the contents of soluble protein and RUBISCO, and to the activities of PEPC and Fd-GOGAT, but not of GS, when RUBISCO contents and enzyme activities were calculated per g fresh weight/min. However, when enzyme contents and enzyme activities were expressed per mg soluble protein/min, yield was correlated positively to RUBISCO and PEPC, but negatively to GS. These results give syupport to the hypothesis that RUBISCO, fd-GOGAT, and PEPC may be used as biochemical markers for the devel... Mostrar Tudo |
Palavras-Chave: |
Enzyme; Fixacao; Maize; Nitrogen fixing. |
Thesagro: |
Bactéria; Enzima; Inoculação; Milho; Nitrogênio; Nutrição Vegetal; Zea Mays. |
Thesaurus Nal: |
Azospirillum; plant nutrition. |
Categoria do assunto: |
W Química e Física |
Marc: |
LEADER 02418naa a2200313 a 4500 001 1476097 005 2018-06-12 008 1996 bl uuuu u00u1 u #d 100 1 $aPURCINO, A. A. C. 245 $aInfluence of Azospirillum inoculation and nitrogen supply on grain yield, and carbon$band nitrogen-assimilating enzymes in maize.$h[electronic resource] 260 $c1996 520 $aNitrogen (N) supply increased yield, leaf % N at 10 days after silking (DAS) and at harvesting, the contents of ribulose-1,5-bisphosphate carboxylase (RUBISCO) and soluble protein, and the activities of phosphoenolpyruvate carboxylase (PEPC), and ferredoxin-glutamate synthase (fd-GOGAT), but not of glutamine synthetase (GS) for six tropical maize (Zea mays L.) cultivars. Compared to plants fertilized with 10 kg N/ha, plants inoculated with a mixture of Azospirillum sp. (strains Sp 82, Sp 242, and Sp Eng-501) had increased grain % protein, and leaf % N at 10 DAS and at harvest, but not grain yield. Compared to plants fertilized with either 60 or 180 kg N/ha, Azospirillum inoculated plants yielded significantly less, and except for GS activity, which was not influenced by N supply, had lower values for leaf % N at 10 DAS and at harvest, for contents of soluble protein and RUBISCO, and for the activities of PEPC and fd-GOGAT. Yield was positively correlated to leaf % N both at 10 DAS and at harvest to the contents of soluble protein and RUBISCO, and to the activities of PEPC and Fd-GOGAT, but not of GS, when RUBISCO contents and enzyme activities were calculated per g fresh weight/min. However, when enzyme contents and enzyme activities were expressed per mg soluble protein/min, yield was correlated positively to RUBISCO and PEPC, but negatively to GS. These results give syupport to the hypothesis that RUBISCO, fd-GOGAT, and PEPC may be used as biochemical markers for the development of genotypes with (...) 650 $aAzospirillum 650 $aplant nutrition 650 $aBactéria 650 $aEnzima 650 $aInoculação 650 $aMilho 650 $aNitrogênio 650 $aNutrição Vegetal 650 $aZea Mays 653 $aEnzyme 653 $aFixacao 653 $aMaize 653 $aNitrogen fixing 700 1 $aPAIVA, E. 700 1 $aSILVA, M. R. 700 1 $aANDRADE, S. R. M. 773 $tJournal of Plant Nutrition, New York$gv. 19, n. 7, p. 1045-1060, 1996.
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Embrapa Milho e Sorgo (CNPMS) |
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Biblioteca(s): |
Embrapa Semiárido. |
Data corrente: |
30/09/1996 |
Data da última atualização: |
02/05/2018 |
Tipo da produção científica: |
Folder/Folheto/Cartilha |
Autoria: |
NUNES, R. F. de M. |
Afiliação: |
REGINA FERRO DE MELO NUNES, CPATSA. |
Título: |
Propagacao: cultura de tecidos do mamoeiro. |
Ano de publicação: |
1995 |
Fonte/Imprenta: |
Jaboticabal: Universidade Estadual Paulista, 1995. |
Páginas: |
22 p. |
Idioma: |
Português |
Conteúdo: |
Seminario apresentado sobre a cultura do mamoeiro. Propagacao vegetativa da cultura de tecidos do mamoeiro. Embriogenese somatica. Recuperacao de embriao interespecifico, cultivo do meristema, vantagens e desvantagens da micropropagacao. |
Palavras-Chave: |
Meristem; Papaya; Propagacao; Propagation. |
Thesagro: |
Carica Papaya; Cultura de Meristema; Cultura de Tecido; Mamão; Micropropagação; Propagação Vegetativa. |
Thesaurus NAL: |
callus; micropropagation; tissue culture; vegetative propagation. |
Categoria do assunto: |
-- F Plantas e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/176192/1/7682.pdf
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Marc: |
LEADER 00986nam a2200289 a 4500 001 1132699 005 2018-05-02 008 1995 bl uuuu u0uu1 u #d 100 1 $aNUNES, R. F. de M. 245 $aPropagacao$bcultura de tecidos do mamoeiro. 260 $aJaboticabal: Universidade Estadual Paulista$c1995 300 $a22 p. 520 $aSeminario apresentado sobre a cultura do mamoeiro. Propagacao vegetativa da cultura de tecidos do mamoeiro. Embriogenese somatica. Recuperacao de embriao interespecifico, cultivo do meristema, vantagens e desvantagens da micropropagacao. 650 $acallus 650 $amicropropagation 650 $atissue culture 650 $avegetative propagation 650 $aCarica Papaya 650 $aCultura de Meristema 650 $aCultura de Tecido 650 $aMamão 650 $aMicropropagação 650 $aPropagação Vegetativa 653 $aMeristem 653 $aPapaya 653 $aPropagacao 653 $aPropagation
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