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 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Leite. Para informações adicionais entre em contato com cnpgl.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
16/02/2017 |
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Data da última atualização: |
30/01/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
WALLAU, M. O.; SOLLENBERGER, L. E.; VENDDRAMINI, J. M. B.; GOMIDE, C. A. de M.; MULLENIX, M. K.; QUESENBERRY, K. H. |
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Afiliação: |
Marcelo O. Wallau, University of Florida, Gainesville, FL; Lynn E. Sollenberger, University of Florida, Gainesville, FL; João M. B. Vendramini, Range Cattle Research and Education Center, Ona, FL; CARLOS AUGUSTO DE MIRANDA GOMIDE, CNPGL; M. Kimberly Mullenix, Auburn University, Auburn, AL; Kenneth H. Quesenberry, University of Florida, Gainesville, FL. |
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Título: |
Performance of Limpograss Breeding Lines under Various Grazing Management Strategies. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Crop Science, v. 56, n. 6, p. 3345-3353, 2016. |
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Idioma: |
Inglês |
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Conteúdo: |
Limpograss [Hemarthria altissima (Poir.) Stapf et C.E. Hubb.] is a C4, perennial, stoloniferous grass that is well adapted to poorly drained soils and grows throughout frost-free periods during winter in southern Florida. Its use has increased rapidly in recent decades, but nearly all area in cultivation is planted with one cultivar, ?Floralta?. A breeding program was initiated to develop improved alternatives to Floralta, resulting in a group of breeding lines requiring evaluation under grazing. The objective of this research was to evaluate the performance of five limpograss breeding lines (1, 4F, 10, 32, and 34) under combinations of grazing frequency and intensity. During the 2012 and 2013 growing seasons, those lines, plus Floralta, were tested at two pre-grazing canopy light interception levels (80 and 95%), that triggered the initiation of each grazing event, and two post-grazing stubble heights (20 and 30 cm). Lines 4F and 10 had greater herbage accumulation, apparent herbage harvested, and persistence than Floralta. Initiation of grazing at 80% canopy light interception resulted in more frequent grazing events, a longer grazing season, shorter pregrazing canopy height, greater leaf percentage, less herbage bulk density, and greater herbage crude protein concentration compared with 95% canopy light interception. These data support cultivar release of breeding lines 4F and 10 and suggest that persistence and efficient utilization of limpograss under rotational stocking can likely be achieved by initiating grazing at a pre-grazing canopy height of ~60 cm, well before 95% canopy light interception, and by ending grazing at a post-grazing canopy height of ~30 cm. MenosLimpograss [Hemarthria altissima (Poir.) Stapf et C.E. Hubb.] is a C4, perennial, stoloniferous grass that is well adapted to poorly drained soils and grows throughout frost-free periods during winter in southern Florida. Its use has increased rapidly in recent decades, but nearly all area in cultivation is planted with one cultivar, ?Floralta?. A breeding program was initiated to develop improved alternatives to Floralta, resulting in a group of breeding lines requiring evaluation under grazing. The objective of this research was to evaluate the performance of five limpograss breeding lines (1, 4F, 10, 32, and 34) under combinations of grazing frequency and intensity. During the 2012 and 2013 growing seasons, those lines, plus Floralta, were tested at two pre-grazing canopy light interception levels (80 and 95%), that triggered the initiation of each grazing event, and two post-grazing stubble heights (20 and 30 cm). Lines 4F and 10 had greater herbage accumulation, apparent herbage harvested, and persistence than Floralta. Initiation of grazing at 80% canopy light interception resulted in more frequent grazing events, a longer grazing season, shorter pregrazing canopy height, greater leaf percentage, less herbage bulk density, and greater herbage crude protein concentration compared with 95% canopy light interception. These data support cultivar release of breeding lines 4F and 10 and suggest that persistence and efficient utilization of limpograss under rotational stockin... Mostrar Tudo |
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Palavras-Chave: |
Forage farming. |
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Thesaurus Nal: |
animal production; pasture management. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02350naa a2200217 a 4500
001 2064446
005 2023-01-30
008 2016 bl uuuu u00u1 u #d
100 1 $aWALLAU, M. O.
245 $aPerformance of Limpograss Breeding Lines under Various Grazing Management Strategies.$h[electronic resource]
260 $c2016
520 $aLimpograss [Hemarthria altissima (Poir.) Stapf et C.E. Hubb.] is a C4, perennial, stoloniferous grass that is well adapted to poorly drained soils and grows throughout frost-free periods during winter in southern Florida. Its use has increased rapidly in recent decades, but nearly all area in cultivation is planted with one cultivar, ?Floralta?. A breeding program was initiated to develop improved alternatives to Floralta, resulting in a group of breeding lines requiring evaluation under grazing. The objective of this research was to evaluate the performance of five limpograss breeding lines (1, 4F, 10, 32, and 34) under combinations of grazing frequency and intensity. During the 2012 and 2013 growing seasons, those lines, plus Floralta, were tested at two pre-grazing canopy light interception levels (80 and 95%), that triggered the initiation of each grazing event, and two post-grazing stubble heights (20 and 30 cm). Lines 4F and 10 had greater herbage accumulation, apparent herbage harvested, and persistence than Floralta. Initiation of grazing at 80% canopy light interception resulted in more frequent grazing events, a longer grazing season, shorter pregrazing canopy height, greater leaf percentage, less herbage bulk density, and greater herbage crude protein concentration compared with 95% canopy light interception. These data support cultivar release of breeding lines 4F and 10 and suggest that persistence and efficient utilization of limpograss under rotational stocking can likely be achieved by initiating grazing at a pre-grazing canopy height of ~60 cm, well before 95% canopy light interception, and by ending grazing at a post-grazing canopy height of ~30 cm.
650 $aanimal production
650 $apasture management
653 $aForage farming
700 1 $aSOLLENBERGER, L. E.
700 1 $aVENDDRAMINI, J. M. B.
700 1 $aGOMIDE, C. A. de M.
700 1 $aMULLENIX, M. K.
700 1 $aQUESENBERRY, K. H.
773 $tCrop Science$gv. 56, n. 6, p. 3345-3353, 2016.
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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
09/10/2014 |
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Data da última atualização: |
19/10/2022 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
MARTINEZ, G. B.; OLIVEIRA, E. C. P. de; OLIVEIRA, V. C. de; SANTOS FILHO, B. G. dos; PINHEIRO, H. A. |
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Afiliação: |
GLADYS BEATRIZ MARTINEZ, CPATU; Elaine Cristina Pacheco de OLIVEIRA, UFRA; Valdirene Costa de OLIVEIRA, UFRA; Benedito Gomes dos SANTOS FILHO, UFRA; Hugo Alves PINHEIRO, UFRA. |
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Título: |
Caracterização física e fisiológica de sementes de angelim-pedra (Dinizia excelsa Ducke) procedentes da Floresta Nacional do Tapajós - Pará. |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
In: REUNIÃO ANUAL DA SBPC, 59., 2007, Belém, PA. Resumos... Belém, PA: SBPC, [2007]. |
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Idioma: |
Português |
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Palavras-Chave: |
Angelim-pedra. |
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Thesagro: |
Floresta Tropical; Qualidade; Semente. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/109721/1/SBPC-24.pdf
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Marc: |
LEADER 00709nam a2200193 a 4500
001 1996965
005 2022-10-19
008 2007 bl uuuu u00u1 u #d
100 1 $aMARTINEZ, G. B.
245 $aCaracterização física e fisiológica de sementes de angelim-pedra (Dinizia excelsa Ducke) procedentes da Floresta Nacional do Tapajós - Pará.$h[electronic resource]
260 $aIn: REUNIÃO ANUAL DA SBPC, 59., 2007, Belém, PA. Resumos... Belém, PA: SBPC, [2007].$c2007
650 $aFloresta Tropical
650 $aQualidade
650 $aSemente
653 $aAngelim-pedra
700 1 $aOLIVEIRA, E. C. P. de
700 1 $aOLIVEIRA, V. C. de
700 1 $aSANTOS FILHO, B. G. dos
700 1 $aPINHEIRO, H. A.
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