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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
16/02/2011 |
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Data da última atualização: |
25/04/2024 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
SILVA, R. V. M. M.; ROSSIELLO, R. O. P.; MORENZ, M. J. F.; BARBIERI JUNIOR, E.; PACIULLO, D. S. C. |
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Afiliação: |
ROSANI VALÉRIA MARCELINA MATOSO SILVA, UENF; ROBERTO OSCAR PEREYRA ROSSIELLO, UFRRJ; MIRTON JOSE FROTA MORENZ, CNPGL; ÉLIO BARBIERI JUNIOR, UFRRJ; DOMINGOS SAVIO CAMPOS PACIULLO, CNPGL. |
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Título: |
Proteína Bruta e frações nitrogenadas do Capim-Tifton-85 sob doses de nitrogênio. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 47., 2010, Salvador. Empreendedorismo e progresso científico na zootecnia brasileira: anais. Viçosa, MG: Sociedade Brasileira de Zootecnia, 2010 |
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Páginas: |
3 p. |
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Idioma: |
Português |
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Conteúdo: |
Objetivou-se com este experimento avaliar o efeito da disponibilidade de N no solo sobre os teores de proteína bruta (PB) e as frações nitrogenadas no capim-Tifton-85. Os dados foram obtidos a partir de amostras do capim, em um experimento de campo, onde os tratamentos constituíram-se de doses crescentes de N em três níveis de disponibilidade: baixo N; representado pelo N do solo; médio N: 75 de N/ha/corte; e alto N: 150 kg de N/ha/corte, num total de dois cortes. As frações de N foram determinadas de acordo com a metodologia descrita por Licitra et al. (1996), adaptada por Morenz (2004). O delineamento experimental foi em blocos casualizados com quatro repetições em esquema de parcelas subdivididas, com as doses de N alocadas na parcela inteira e o período de corte na parcela subdividida. De acordo com os valores obtidos para as frações nitrogenadas, a forrageira foi considerada de alto valor nutritivo, apresentando baixas proporções de proteína indisponível ao animal. A adubação nitrogenada promoveu aumento nos teores de PB e redução da fração C (%PB), resultando em melhora na qualidade da forragem. |
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Palavras-Chave: |
CNCPS. |
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Thesagro: |
Fracionamento; Uréia. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/877414/1/Proteina-Bruta-e-Fracoes-Nitrogenadas-do-Capim-Tifton-85.pdf
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Marc: |
LEADER 01897nam a2200205 a 4500
001 1877414
005 2024-04-25
008 2010 bl uuuu u00u1 u #d
100 1 $aSILVA, R. V. M. M.
245 $aProteína Bruta e frações nitrogenadas do Capim-Tifton-85 sob doses de nitrogênio.$h[electronic resource]
260 $aIn: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 47., 2010, Salvador. Empreendedorismo e progresso científico na zootecnia brasileira: anais. Viçosa, MG: Sociedade Brasileira de Zootecnia$c2010
300 $a3 p.
520 $aObjetivou-se com este experimento avaliar o efeito da disponibilidade de N no solo sobre os teores de proteína bruta (PB) e as frações nitrogenadas no capim-Tifton-85. Os dados foram obtidos a partir de amostras do capim, em um experimento de campo, onde os tratamentos constituíram-se de doses crescentes de N em três níveis de disponibilidade: baixo N; representado pelo N do solo; médio N: 75 de N/ha/corte; e alto N: 150 kg de N/ha/corte, num total de dois cortes. As frações de N foram determinadas de acordo com a metodologia descrita por Licitra et al. (1996), adaptada por Morenz (2004). O delineamento experimental foi em blocos casualizados com quatro repetições em esquema de parcelas subdivididas, com as doses de N alocadas na parcela inteira e o período de corte na parcela subdividida. De acordo com os valores obtidos para as frações nitrogenadas, a forrageira foi considerada de alto valor nutritivo, apresentando baixas proporções de proteína indisponível ao animal. A adubação nitrogenada promoveu aumento nos teores de PB e redução da fração C (%PB), resultando em melhora na qualidade da forragem.
650 $aFracionamento
650 $aUréia
653 $aCNCPS
700 1 $aROSSIELLO, R. O. P.
700 1 $aMORENZ, M. J. F.
700 1 $aBARBIERI JUNIOR, E.
700 1 $aPACIULLO, D. S. C.
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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Soja. Para informações adicionais entre em contato com valeria.cardoso@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
30/09/2008 |
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Data da última atualização: |
01/10/2008 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
GRAÇA, J. P. da; SALVADOR, M. C.; MELLO, D.; MANDARINO, J. M. G.; HOFFMANN-CAMPO, C. B. |
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Afiliação: |
José Perez da Graça, UNESP / Jaboticabal; Mariana Closs Salvador, UNESP / Jaboticabal / CNPSo; José Marcos Gontijo Mandarino, CNPSo; Clara Beatriz Hoffmann-Campo, CNPSo. |
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Título: |
Enzymatic activity of lipoxygenases, isoflavone contents, and trichomes in soybean genotypes: implication on insect plant resistance. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
In: ANNIVERSARY ISCE MEETING, 25., 2008, State College, Pennsylvania. [Abstracts]. State College, Pennsylvania: International Society of Chemical Ecology, 2008. p. 88. |
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Idioma: |
Inglês |
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Conteúdo: |
Soybean [Glycine max (L.) Merr.] is attacked by insects and other pests and constantly needs to activate its defenses against their injuries. Generally, plants use the synthesis 0f metabolites or morphological structures to deter or inhibit herbivorous activity. Plant lipoxygenases are enzymes involved in the biosynthesis of regulatory molecules, and in the response to insect and pathogen attacks. Trichomes are morphological structures generally related to physical plant defense. This work was carried out to evaluate lipoxygenases (LOX) enzymatic activity and density and length of trichomes in soybean genotypes ('BRS 155', 'BRS 213', 'BRS 257', 'BRS 134', 'BRS 133', 'BR 16', 'IAC 100', PI 227687, and 'Dowling'), relating these information with Nezara viridula (Hemiptera: Pentatomidae) developmental time and adult weigh. The genotypes were grown in greenhouse. Pods and seeds were morphologically and biochemically evaluated at soybean developmental stages R6, and R6 plus R8, respectively. Nymphs of stink-bugs were led with R6-pods, from the second stage to adulthood. BRS 134, BR 16, Dowling, and BRS 155 showed longer trichomes, whereas IAC 100, BRS 213, and PI 227687 presented higher density of trichomes compared with the other genotypes. At R6, seeds of BRS 155 presented the highest LOX 1 activity, BRS 155, and PI 227687 presented the highest LOX 2 and LOX 3 activities, and Dowling presented higher LOX 2 activity, At R8, BR 16, IAC 100, BRS 133, and PI 227687 presented the highest activities of LOX 1, and BRS 133 presented the highest activity of LOX 2 and 3. Adults led on BRS 155, whose seeds presented high LOXs (1, 2, and 3) activities were heavier (173,52) compared with PI 227687 (108.20 mg) and on BRS 257 (130.15 mg); developmental time varied from 21.46 to 22.57 days, but no statistical differences between treatments were detected. PI 227687 is a widely used source of insect resistance and in our trial showed higher LOX 2 and LOX 3 activities, higher trichome density and higher isoflavone contents. However, BRS-257, which presented low LOXs (1, 2, and 3) activity showed neither longer nor higher trichome density, intermediate isoflavone content compared with the other genotypes. Consequently, as indicated by this bioassay, chemical, biochemical, and mechanical factors can act synergistically on the defense of PI227687 against insect pests. Regarding BRS 257, the plant defense likely comes from other types of LOXs. Consequently, the involvement of lipoxigenases in soybean plant defense against insects is not clearly elucidated. MenosSoybean [Glycine max (L.) Merr.] is attacked by insects and other pests and constantly needs to activate its defenses against their injuries. Generally, plants use the synthesis 0f metabolites or morphological structures to deter or inhibit herbivorous activity. Plant lipoxygenases are enzymes involved in the biosynthesis of regulatory molecules, and in the response to insect and pathogen attacks. Trichomes are morphological structures generally related to physical plant defense. This work was carried out to evaluate lipoxygenases (LOX) enzymatic activity and density and length of trichomes in soybean genotypes ('BRS 155', 'BRS 213', 'BRS 257', 'BRS 134', 'BRS 133', 'BR 16', 'IAC 100', PI 227687, and 'Dowling'), relating these information with Nezara viridula (Hemiptera: Pentatomidae) developmental time and adult weigh. The genotypes were grown in greenhouse. Pods and seeds were morphologically and biochemically evaluated at soybean developmental stages R6, and R6 plus R8, respectively. Nymphs of stink-bugs were led with R6-pods, from the second stage to adulthood. BRS 134, BR 16, Dowling, and BRS 155 showed longer trichomes, whereas IAC 100, BRS 213, and PI 227687 presented higher density of trichomes compared with the other genotypes. At R6, seeds of BRS 155 presented the highest LOX 1 activity, BRS 155, and PI 227687 presented the highest LOX 2 and LOX 3 activities, and Dowling presented higher LOX 2 activity, At R8, BR 16, IAC 100, BRS 133, and PI 227687 presented the hi... Mostrar Tudo |
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Categoria do assunto: |
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Marc: |
LEADER 03235naa a2200169 a 4500
001 1470922
005 2008-10-01
008 2008 bl --- 0-- u #d
100 1 $aGRAÇA, J. P. da
245 $aEnzymatic activity of lipoxygenases, isoflavone contents, and trichomes in soybean genotypes$bimplication on insect plant resistance.
260 $c2008
520 $aSoybean [Glycine max (L.) Merr.] is attacked by insects and other pests and constantly needs to activate its defenses against their injuries. Generally, plants use the synthesis 0f metabolites or morphological structures to deter or inhibit herbivorous activity. Plant lipoxygenases are enzymes involved in the biosynthesis of regulatory molecules, and in the response to insect and pathogen attacks. Trichomes are morphological structures generally related to physical plant defense. This work was carried out to evaluate lipoxygenases (LOX) enzymatic activity and density and length of trichomes in soybean genotypes ('BRS 155', 'BRS 213', 'BRS 257', 'BRS 134', 'BRS 133', 'BR 16', 'IAC 100', PI 227687, and 'Dowling'), relating these information with Nezara viridula (Hemiptera: Pentatomidae) developmental time and adult weigh. The genotypes were grown in greenhouse. Pods and seeds were morphologically and biochemically evaluated at soybean developmental stages R6, and R6 plus R8, respectively. Nymphs of stink-bugs were led with R6-pods, from the second stage to adulthood. BRS 134, BR 16, Dowling, and BRS 155 showed longer trichomes, whereas IAC 100, BRS 213, and PI 227687 presented higher density of trichomes compared with the other genotypes. At R6, seeds of BRS 155 presented the highest LOX 1 activity, BRS 155, and PI 227687 presented the highest LOX 2 and LOX 3 activities, and Dowling presented higher LOX 2 activity, At R8, BR 16, IAC 100, BRS 133, and PI 227687 presented the highest activities of LOX 1, and BRS 133 presented the highest activity of LOX 2 and 3. Adults led on BRS 155, whose seeds presented high LOXs (1, 2, and 3) activities were heavier (173,52) compared with PI 227687 (108.20 mg) and on BRS 257 (130.15 mg); developmental time varied from 21.46 to 22.57 days, but no statistical differences between treatments were detected. PI 227687 is a widely used source of insect resistance and in our trial showed higher LOX 2 and LOX 3 activities, higher trichome density and higher isoflavone contents. However, BRS-257, which presented low LOXs (1, 2, and 3) activity showed neither longer nor higher trichome density, intermediate isoflavone content compared with the other genotypes. Consequently, as indicated by this bioassay, chemical, biochemical, and mechanical factors can act synergistically on the defense of PI227687 against insect pests. Regarding BRS 257, the plant defense likely comes from other types of LOXs. Consequently, the involvement of lipoxigenases in soybean plant defense against insects is not clearly elucidated.
700 1 $aSALVADOR, M. C.
700 1 $aMELLO, D.
700 1 $aMANDARINO, J. M. G.
700 1 $aHOFFMANN-CAMPO, C. B.
773 $tIn: ANNIVERSARY ISCE MEETING, 25., 2008, State College, Pennsylvania. [Abstracts]. State College, Pennsylvania: International Society of Chemical Ecology, 2008. p. 88.
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