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Registro Completo |
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
16/03/2018 |
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Data da última atualização: |
25/02/2019 |
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Autoria: |
PEREIRA, C. G. S.; SILVA, V. J. da; GUIMARÃES, M. S.; PEQUENO, D. N. L.; TONATO, F. |
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Afiliação: |
Carlos Guilherme Silveira Pedreira, Universidade de São Paulo/Escola Superior de Agricultura Luiz de Queiroz/Departamento de Zootecnia; Valdson José da Silva, Universidade Estadual Vale do Acaraú; Murilo Saraiva Guimarães, Universidade de São Paulo/Escola Superior de Agricultura Luiz de Queiroz/Departamento de Zootecnia; Diego Noleto Luz Pequeno, International Maize and Wheat Improvement Center - CIMMYT; FELIPE TONATO, CPPSE. |
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Título: |
Fixed versus variable rest period effects on herbage accumulation and canopy structure of grazed 'Tifton 85' and 'Jiggs' Bermuda grass. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 53, n. 1, p. 113-120, jan. 2018. |
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Idioma: |
Inglês |
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Notas: |
Título em português: Efeitos de períodos de descanso fixo e variável no acúmulo de forragem e estrutura do dossel de capim-bermuda 'Jiggs' e 'Tifton 85' sob pastejo. |
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Conteúdo: |
The objective of this work was to evaluate the effects of variable and fixed rest periods on the forage production, plant-part composition, and canopy structural characteristics of 'Tifton 85' and 'Jiggs' Bermuda grass (Cynodon spp.) pastures under rotational stocking. The treatments were two grass cultivars (Jiggs and Tifton 85) and two rest periods (grazing starting whenever the canopy reached 25 cm or every 28 days, regardless of canopy height). A completely randomized experimental design, with a 2×2 factorial arrangement (two grass cultivars and two managements), was used with three replicates. The experiment was carried out during the summer growing season in Piracicaba, SP, Brazil. Pre- and post-grazing forage mass chacteristics were evaluated. 'Jiggs' and 'Tifton 85' canopies had similar light interception (96.8%) at pregrazing, for fixed and variable rest periods; however, they showed different canopy structural characteristics. 'Jiggs' had greater stem proportion, greater canopy height during pre-grazing, and lower leaf area index. There were no differences between strategies and between grass cultivars for total yield, which averaged 16.8 Mg DM ha-1. Fixed and variable rest periods can be used for 'Tifton 85' and 'Jiggs' Bermuda grass. |
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Palavras-Chave: |
Altura do dossel; Canopy height; Frequência de pastejo; Grazing frequency; Interceptação de luz; Light interception; Manejo da pastagem; Rebrotação. |
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Thesaurus Nal: |
Cynodon; Pasture management; Regrowth. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/174023/1/Fixed-versus-variable-rest-period-effects-on-herbage.pdf
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Marc: |
LEADER 02409naa a2200313 a 4500
001 2089256
005 2019-02-25
008 2018 bl uuuu u00u1 u #d
100 1 $aPEREIRA, C. G. S.
245 $aFixed versus variable rest period effects on herbage accumulation and canopy structure of grazed 'Tifton 85' and 'Jiggs' Bermuda grass.$h[electronic resource]
260 $c2018
500 $aTítulo em português: Efeitos de períodos de descanso fixo e variável no acúmulo de forragem e estrutura do dossel de capim-bermuda 'Jiggs' e 'Tifton 85' sob pastejo.
520 $aThe objective of this work was to evaluate the effects of variable and fixed rest periods on the forage production, plant-part composition, and canopy structural characteristics of 'Tifton 85' and 'Jiggs' Bermuda grass (Cynodon spp.) pastures under rotational stocking. The treatments were two grass cultivars (Jiggs and Tifton 85) and two rest periods (grazing starting whenever the canopy reached 25 cm or every 28 days, regardless of canopy height). A completely randomized experimental design, with a 2×2 factorial arrangement (two grass cultivars and two managements), was used with three replicates. The experiment was carried out during the summer growing season in Piracicaba, SP, Brazil. Pre- and post-grazing forage mass chacteristics were evaluated. 'Jiggs' and 'Tifton 85' canopies had similar light interception (96.8%) at pregrazing, for fixed and variable rest periods; however, they showed different canopy structural characteristics. 'Jiggs' had greater stem proportion, greater canopy height during pre-grazing, and lower leaf area index. There were no differences between strategies and between grass cultivars for total yield, which averaged 16.8 Mg DM ha-1. Fixed and variable rest periods can be used for 'Tifton 85' and 'Jiggs' Bermuda grass.
650 $aCynodon
650 $aPasture management
650 $aRegrowth
653 $aAltura do dossel
653 $aCanopy height
653 $aFrequência de pastejo
653 $aGrazing frequency
653 $aInterceptação de luz
653 $aLight interception
653 $aManejo da pastagem
653 $aRebrotação
700 1 $aSILVA, V. J. da
700 1 $aGUIMARÃES, M. S.
700 1 $aPEQUENO, D. N. L.
700 1 $aTONATO, F.
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 53, n. 1, p. 113-120, jan. 2018.
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Registro original: |
Embrapa Unidades Centrais (AI-SEDE) |
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Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
29/05/2012 |
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Data da última atualização: |
10/11/2022 |
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Autoria: |
EL-HUSNY, J. C.; ANDRADE, E. B. de; MEYER, M. C.; ALMEIDA, L. A. de. |
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Afiliação: |
JAMIL CHAAR EL HUSNY, CPATU; EMELEOCÍPIO BOTELHO DE ANDRADE, CPATU; MAURICIO CONRADO MEYER, CNPSO; CNPSO. |
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Título: |
Avaliação de cultivares de soja em Paragominas - Pará, 1996. |
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Ano de publicação: |
1997 |
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Fonte/Imprenta: |
In: REUNIÃO DE PESQUISA DE SOJA DA REGIÃO CENTRAL DO BRASIL, 19., 1997, Jaboticabal. Ata e resumos. Londrina: Embrapa-CNPSo, 1997. |
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Páginas: |
p. 280-281. |
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Série: |
(Embrapa-CNPSo. Documentos, 107). |
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Idioma: |
Português |
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Palavras-Chave: |
Pará. |
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Thesagro: |
Soja. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/60331/1/Doc107-p280-281.pdf
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Marc: |
LEADER 00623nam a2200181 a 4500
001 1925669
005 2022-11-10
008 1997 bl uuuu u00u1 u #d
100 1 $aEL-HUSNY, J. C.
245 $aAvaliação de cultivares de soja em Paragominas - Pará, 1996.$h[electronic resource]
260 $aIn: REUNIÃO DE PESQUISA DE SOJA DA REGIÃO CENTRAL DO BRASIL, 19., 1997, Jaboticabal. Ata e resumos. Londrina: Embrapa-CNPSo$c1997
300 $ap. 280-281.
490 $a(Embrapa-CNPSo. Documentos, 107).
650 $aSoja
653 $aPará
700 1 $aANDRADE, E. B. de
700 1 $aMEYER, M. C.
700 1 $aALMEIDA, L. A. de
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Embrapa Amazônia Oriental (CPATU) |
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