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Registro Completo |
Biblioteca(s): |
Embrapa Unidades Centrais. |
Data corrente: |
16/03/2018 |
Data da última atualização: |
25/02/2019 |
Autoria: |
PEREIRA, C. G. S.; SILVA, V. J. da; GUIMARÃES, M. S.; PEQUENO, D. N. L.; TONATO, F. |
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. |
Título: |
Fixed versus variable rest period effects on herbage accumulation and canopy structure of grazed 'Tifton 85' and 'Jiggs' Bermuda grass. |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 53, n. 1, p. 113-120, jan. 2018. |
Idioma: |
Inglês |
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. |
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. |
Palavras-Chave: |
Altura do dossel; Canopy height; Frequência de pastejo; Grazing frequency; Interceptação de luz; Light interception; Manejo da pastagem; Rebrotação. |
Thesaurus Nal: |
Cynodon; Pasture management; Regrowth. |
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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Embrapa Unidades Centrais (AI-SEDE) |
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Registros recuperados : 2 | |
1. | | PEREIRA, C. G. S.; SILVA, V. J. da; GUIMARÃES, M. S.; PEQUENO, D. N. L.; TONATO, F. Fixed versus variable rest period effects on herbage accumulation and canopy structure of grazed 'Tifton 85' and 'Jiggs' Bermuda grass. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 53, n. 1, p. 113-120, jan. 2018. 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.Biblioteca(s): Embrapa Unidades Centrais. |
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2. | | TONATO, F.; PEDREIRA, C. G.; PEQUENO, D. N.; AQUINO, D. C.; CARVALHO, M. S.; FERREIRA, A. S.; GUIMARAES, M. S.; SILVA, V. J.; NGULUVE, D. Total and monthly yield of annual ryegrass and arrowleaf clover grown in pure and mixed stands with or without nitrogen fertilization in Southeastern Brazil. In: ASA-CSSA-SSSA INTERNATIONAL ANNUAL MEETINGS, 2011, San Antonio. Fundamental for life: soil, crop, and environmental sciences: abstracts. Madison: ASA: CSSA: SSSA, 2011.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Amazônia Ocidental. |
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Registros recuperados : 2 | |
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