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Registro Completo |
Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
Data corrente: |
23/04/2013 |
Data da última atualização: |
15/04/2015 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
CUTRIM JÚNIOR, J. A. A.; CAVALCANTE, A. C. R.; CÂNDIDO, M. J. D.; SILVA, G. L.; OLIVEIRA, L. E. V.; VASCONCELOS, E. C. G.; MESQUITA, T. M. O. |
Afiliação: |
José Antonio Alves Cutrim Junior, Pós-graduação - Universidade Federal do Ceará (UFC) - Fortaleza; Instituto Federal Maranhão (IFMA); ANA CLARA RODRIGUES CAVALCANTE, CNPC; Magno José Duarte Cândido, UFC - Fortaleza, CE; Gutenberg Lira Silva, Graduação - Universidade Estadual Vale do Acaraú (UVA) - Sobral, CE; Luiza Elvira Vieira Oliveira, Graduação - UVA - Sobral, CE; Elayne Cristina Gadelha Vasconcelos, Graduação - UVA - Sobral, CE; Tony Maiko Oliveira Mesquita, Graduação - UVA - Sobral, CE. |
Título: |
Biomass flow in Tifton-85 bermudagrass canopy subjected to different management strategies under rotational grazing with dairy goats. |
Ano de publicação: |
2013 |
Fonte/Imprenta: |
Revista Brasileira de Zootecnia, Viçosa, MG, v. 42, n. 2, p. 77-86, 2013. |
DOI: |
http://dx.doi.org/10.1590/S1516-35982013000200001 |
Idioma: |
Inglês |
Conteúdo: |
Biomass flow characteristics and forage accumulation were evaluated in Bermudagrass (Tifton 85) pasture managed under intermittent stocking with different management strategies. The management levels utilized were conventional (10 cm residual height and unfertilized), light (20 cm residual height and unfertilized), moderate (20 cm residual height with fertilization of 300 kg N/ha.year) and intensive (10 cm residual height with fertilization of 600 kg N/ha.year). A randomized design was used with repeated measurements over time, in two periods of the year, with four replicates. There was significant effect of management × period of the year on the leaf elongation rate (LER). The management levels under fertilization (0.59 and 0.60 cm/tiller.day for the intensive and moderate management, respectively) and the rainy season (0.49 cm/tiller.day) showed the greatest stem elongation rate. Leaf senescence rate (LSR) before and after and total LSR were modified by the management × period of the year interaction. The intensive management, with 0.38 leaves/tiller.day, as well as the dry period, with 0.27 leaves/tiller.day, showed higher leaf appearance rate. The lowest phyllochron was observed in intensive management and dry periods, as well as an interaction with the management of the same periods of the year. There was management × period of year interaction effect on leaf lifespan; the highest value was found under conventional management and dry period. Both production and forage accumulation rates were higher in the intensive and moderate management levels and dry season, and there was interaction of the intensive management system with the seasons. Managing pastures under moderate and intensive rotational stocking, which occurred mainly in the rainy and dry seasons, respectively, maximizes the flow of tissues and consequently production and accumulation of forage. MenosBiomass flow characteristics and forage accumulation were evaluated in Bermudagrass (Tifton 85) pasture managed under intermittent stocking with different management strategies. The management levels utilized were conventional (10 cm residual height and unfertilized), light (20 cm residual height and unfertilized), moderate (20 cm residual height with fertilization of 300 kg N/ha.year) and intensive (10 cm residual height with fertilization of 600 kg N/ha.year). A randomized design was used with repeated measurements over time, in two periods of the year, with four replicates. There was significant effect of management × period of the year on the leaf elongation rate (LER). The management levels under fertilization (0.59 and 0.60 cm/tiller.day for the intensive and moderate management, respectively) and the rainy season (0.49 cm/tiller.day) showed the greatest stem elongation rate. Leaf senescence rate (LSR) before and after and total LSR were modified by the management × period of the year interaction. The intensive management, with 0.38 leaves/tiller.day, as well as the dry period, with 0.27 leaves/tiller.day, showed higher leaf appearance rate. The lowest phyllochron was observed in intensive management and dry periods, as well as an interaction with the management of the same periods of the year. There was management × period of year interaction effect on leaf lifespan; the highest value was found under conventional management and dry period. Both production and forage a... Mostrar Tudo |
Palavras-Chave: |
Acúmulo de forragem; Adubação nitrogenada; Capim massai; Capim-tifton 85; Cynodon spp; Fluxo de biomassa; Grassland Management; Panicum infestum. |
Thesagro: |
Cabra leiteira; Caprino; Fertilizante nitrogenado; Morfogênese; Pastejo rotativo. |
Thesaurus Nal: |
biomass; Goats; Grazing; Morphogenesis; nitrogen fertilizers; Rotational grazing. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/122394/1/CNPC-2013-Biomass-flow.pdf
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Marc: |
LEADER 03238naa a2200433 a 4500 001 1956441 005 2015-04-15 008 2013 bl uuuu u00u1 u #d 024 7 $ahttp://dx.doi.org/10.1590/S1516-35982013000200001$2DOI 100 1 $aCUTRIM JÚNIOR, J. A. A. 245 $aBiomass flow in Tifton-85 bermudagrass canopy subjected to different management strategies under rotational grazing with dairy goats.$h[electronic resource] 260 $c2013 520 $aBiomass flow characteristics and forage accumulation were evaluated in Bermudagrass (Tifton 85) pasture managed under intermittent stocking with different management strategies. The management levels utilized were conventional (10 cm residual height and unfertilized), light (20 cm residual height and unfertilized), moderate (20 cm residual height with fertilization of 300 kg N/ha.year) and intensive (10 cm residual height with fertilization of 600 kg N/ha.year). A randomized design was used with repeated measurements over time, in two periods of the year, with four replicates. There was significant effect of management × period of the year on the leaf elongation rate (LER). The management levels under fertilization (0.59 and 0.60 cm/tiller.day for the intensive and moderate management, respectively) and the rainy season (0.49 cm/tiller.day) showed the greatest stem elongation rate. Leaf senescence rate (LSR) before and after and total LSR were modified by the management × period of the year interaction. The intensive management, with 0.38 leaves/tiller.day, as well as the dry period, with 0.27 leaves/tiller.day, showed higher leaf appearance rate. The lowest phyllochron was observed in intensive management and dry periods, as well as an interaction with the management of the same periods of the year. There was management × period of year interaction effect on leaf lifespan; the highest value was found under conventional management and dry period. Both production and forage accumulation rates were higher in the intensive and moderate management levels and dry season, and there was interaction of the intensive management system with the seasons. Managing pastures under moderate and intensive rotational stocking, which occurred mainly in the rainy and dry seasons, respectively, maximizes the flow of tissues and consequently production and accumulation of forage. 650 $abiomass 650 $aGoats 650 $aGrazing 650 $aMorphogenesis 650 $anitrogen fertilizers 650 $aRotational grazing 650 $aCabra leiteira 650 $aCaprino 650 $aFertilizante nitrogenado 650 $aMorfogênese 650 $aPastejo rotativo 653 $aAcúmulo de forragem 653 $aAdubação nitrogenada 653 $aCapim massai 653 $aCapim-tifton 85 653 $aCynodon spp 653 $aFluxo de biomassa 653 $aGrassland Management 653 $aPanicum infestum 700 1 $aCAVALCANTE, A. C. R. 700 1 $aCÂNDIDO, M. J. D. 700 1 $aSILVA, G. L. 700 1 $aOLIVEIRA, L. E. V. 700 1 $aVASCONCELOS, E. C. G. 700 1 $aMESQUITA, T. M. O. 773 $tRevista Brasileira de Zootecnia, Viçosa, MG$gv. 42, n. 2, p. 77-86, 2013.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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Biblioteca(s): |
Embrapa Florestas. |
Data corrente: |
22/08/2002 |
Data da última atualização: |
04/08/2014 |
Tipo da produção científica: |
Circular Técnica |
Autoria: |
MEDEIROS, A. C. de S. |
Afiliação: |
Antônio Carlos de Souza Medeiros, Embrapa Florestas. |
Título: |
Aspectos de dormência em sementes de espécies arbóreas. |
Ano de publicação: |
2001 |
Fonte/Imprenta: |
Colombo: Embrapa Florestas, 2001. |
Páginas: |
12 p. |
Série: |
(Embrapa Florestas. Circular técnica, 55). |
Idioma: |
Português |
Conteúdo: |
Como distinguir se a semente está dormente ou morta? Causas da dormência. Impermeabilidade do tegumento. Imaturidade e dormência do embrião. Promotores e inibidores de germinação; Resistência mecânica dos envoltórios da semente. Métodos práticos pré-germinativos. Tratamentos para a quebra de dormência em sementes de espécies arbóreas. |
Palavras-Chave: |
Aspecto; Brasil; Colombo; Espécie arbórea; Espécies arbóreas; Melhoramento Genético; Paraná; Propagação; Sementes. |
Thesagro: |
Árvore; Dormência; Dormência da Semente; Espécie; Essência Florestal; Germinação; Semente. |
Thesaurus NAL: |
dormancy; germination; seeds; trees. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/41994/1/CT0055.pdf
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Marc: |
LEADER 01292nam a2200373 a 4500 001 1305318 005 2014-08-04 008 2001 bl uuuu u0uu1 u #d 100 1 $aMEDEIROS, A. C. de S. 245 $aAspectos de dormência em sementes de espécies arbóreas. 260 $aColombo: Embrapa Florestas$c2001 300 $a12 p. 490 $a(Embrapa Florestas. Circular técnica, 55). 520 $aComo distinguir se a semente está dormente ou morta? Causas da dormência. Impermeabilidade do tegumento. Imaturidade e dormência do embrião. Promotores e inibidores de germinação; Resistência mecânica dos envoltórios da semente. Métodos práticos pré-germinativos. Tratamentos para a quebra de dormência em sementes de espécies arbóreas. 650 $adormancy 650 $agermination 650 $aseeds 650 $atrees 650 $aÁrvore 650 $aDormência 650 $aDormência da Semente 650 $aEspécie 650 $aEssência Florestal 650 $aGerminação 650 $aSemente 653 $aAspecto 653 $aBrasil 653 $aColombo 653 $aEspécie arbórea 653 $aEspécies arbóreas 653 $aMelhoramento Genético 653 $aParaná 653 $aPropagação 653 $aSementes
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Embrapa Florestas (CNPF) |
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