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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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| Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Corte. Para informações adicionais entre em contato com cnpgc.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Gado de Corte. |
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Data corrente: |
19/08/2009 |
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Data da última atualização: |
19/08/2009 |
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Autoria: |
BOLDRINI, K. R.; MENDES-BONATO, A. B.; PAGLIARINI, M. S.; VALLE, C. B. |
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Afiliação: |
Cacilda Borges do Valle, CNPGC. |
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Título: |
Evidência citológica de hibridização natural em Brachiaria brizantha Stapf (Gramineae). |
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Ano de publicação: |
2004 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE GENÉTICA, 50., 2004, Florianópolis. Resumos... Florianópolis: Sociedade Brasileira de Genética, 2004. |
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Páginas: |
p. 1220 |
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Descrição Física: |
1 CD-ROM. |
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Idioma: |
Português |
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Palavras-Chave: |
Braquiária. |
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Thesagro: |
Brachiaria Brizantha; Citogenética; Gramínea Forrageira; Hibridação; Melhoramento Genético Vegetal; Pastagem. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00801naa a2200241 a 4500
001 1325194
005 2009-08-19
008 2004 bl uuuu u00u1 u #d
100 1 $aBOLDRINI, K. R.
245 $aEvidência citológica de hibridização natural em Brachiaria brizantha Stapf (Gramineae).
260 $c2004
300 $ap. 1220$c1 CD-ROM.
650 $aBrachiaria Brizantha
650 $aCitogenética
650 $aGramínea Forrageira
650 $aHibridação
650 $aMelhoramento Genético Vegetal
650 $aPastagem
653 $aBraquiária
700 1 $aMENDES-BONATO, A. B.
700 1 $aPAGLIARINI, M. S.
700 1 $aVALLE, C. B.
773 $tIn: CONGRESSO BRASILEIRO DE GENÉTICA, 50., 2004, Florianópolis. Resumos... Florianópolis: Sociedade Brasileira de Genética, 2004.
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