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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: |
21/08/2021 |
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Data da última atualização: |
21/08/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SILVA, S. C. da; UEBELE, M. C.; CONGIO, G. F. de S.; MONTEIRO, R. A. C.; SBRISSIA, A. F. |
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Afiliação: |
SILA CARNEIRO DA SILVA, Escola Superior de Agricultura "Luiz de Queiroz"; MARINA CASTRO UEBELE, Escola Superior de Agricultura "Luiz de Queiroz"; GUILHERMO FRANCKLIN DE SOUZA CONGIO, Colombian Corporation for Agricultural Research; ROBERTA APARECIDA C MONTEIRO, CNPGL; ANDRÉ FISCHER SBRISSIA, Universidade Federal de Santa Catarina. |
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Título: |
Growth of Megathyrsus maximus cv. Mombaça as affected by grazing strategies and environmental seasonality. I. Tillering dynamics and population stability. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Crop & Pasture Science, v. 72, p. 55-65, 2021. |
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DOI: |
https://doi.org/10.1071/CP20198 |
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Idioma: |
Inglês |
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Conteúdo: |
In rotationally grazed pastures, the canopy light environment can be modulated through both grazing frequency and severity, and the magnitude of sward responses may differ according to forage species and its ability to use available resources. We hypothesised that the tall, tufted, fast-growing, tussock-forming species Momba¸ca guineagrass (Megathyrsus maximus (Jacq.) B.K.Simon & S.W.L.Jacobs cv. Momba¸ca) can modulate its tillering dynamics and change its persistence pathway according to grazing strategy and the availability of growth factors. Treatments corresponded to all combinations of two levels of pre-grazing canopy light interception during regrowth (95% and maximum) and two post-grazing heights (30 and 50 cm), and were allocated to experimental units according to a randomised complete block design with four replications. Measurements were performed throughout contrasting climatic conditions during four seasons from January 2001 to February 2002. A quite stable tiller population density presented regardless of the range of grazing frequency and severity used in the study. However, tiller appearance and death were strongly influenced (P < 0.001) by season of the year, with highest rates recorded during the two summers and lowest during autumn-winter. There was no conclusive evidence that the persistence pathway of Mombaça guineagrass changes within the grazing management strategies studied. |
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Palavras-Chave: |
Canopy light interception; Capim Mombaça; Ecofisiologia; Estresse abiótico; Interceptação da luz; Perfilhamento. |
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Thesagro: |
Capim Colonião; Gramínea Forrageira; Manejo; Pastejo; Variação Sazonal. |
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Thesaurus Nal: |
Abiotic stress; Ecophysiology; Grazing management. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02515naa a2200349 a 4500
001 2133783
005 2021-08-21
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1071/CP20198$2DOI
100 1 $aSILVA, S. C. da
245 $aGrowth of Megathyrsus maximus cv. Mombaça as affected by grazing strategies and environmental seasonality. I. Tillering dynamics and population stability.$h[electronic resource]
260 $c2021
520 $aIn rotationally grazed pastures, the canopy light environment can be modulated through both grazing frequency and severity, and the magnitude of sward responses may differ according to forage species and its ability to use available resources. We hypothesised that the tall, tufted, fast-growing, tussock-forming species Momba¸ca guineagrass (Megathyrsus maximus (Jacq.) B.K.Simon & S.W.L.Jacobs cv. Momba¸ca) can modulate its tillering dynamics and change its persistence pathway according to grazing strategy and the availability of growth factors. Treatments corresponded to all combinations of two levels of pre-grazing canopy light interception during regrowth (95% and maximum) and two post-grazing heights (30 and 50 cm), and were allocated to experimental units according to a randomised complete block design with four replications. Measurements were performed throughout contrasting climatic conditions during four seasons from January 2001 to February 2002. A quite stable tiller population density presented regardless of the range of grazing frequency and severity used in the study. However, tiller appearance and death were strongly influenced (P < 0.001) by season of the year, with highest rates recorded during the two summers and lowest during autumn-winter. There was no conclusive evidence that the persistence pathway of Mombaça guineagrass changes within the grazing management strategies studied.
650 $aAbiotic stress
650 $aEcophysiology
650 $aGrazing management
650 $aCapim Colonião
650 $aGramínea Forrageira
650 $aManejo
650 $aPastejo
650 $aVariação Sazonal
653 $aCanopy light interception
653 $aCapim Mombaça
653 $aEcofisiologia
653 $aEstresse abiótico
653 $aInterceptação da luz
653 $aPerfilhamento
700 1 $aUEBELE, M. C.
700 1 $aCONGIO, G. F. de S.
700 1 $aMONTEIRO, R. A. C.
700 1 $aSBRISSIA, A. F.
773 $tCrop & Pasture Science$gv. 72, p. 55-65, 2021.
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| 11. |  | DIAS, N. P.; SMANIOTTO, G.; ONGARATTO, S.; NAVA, D. E. Definição da época de ocorrência de Ceratitis capitata (WIEDEMANN, 1824) (Diptera, Tephritidae) em laranjas 'Navelina'. In: ENCONTRO DE INICIAÇÃO CIENTÍFICA E PÓS-GRADUAÇÃO DA EMBRAPA CLIMA TEMPERADO, 5., 2014, Pelotas. Qual o papel da ciência na agricultura familiar?: anais. Pelotas: Embrapa Clima Temperado, 2015. 120 p.| Tipo: Resumo em Anais de Congresso |
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| 13. | | FOLEGATTI, M. V.; VÁSQUEZ, M. A. N.; DIAS, N. da S.; SOUSA, V. F. de. Qualidade física do melão fertirrigado com diferentes dosagens de potássio e lâminas de irrigação, em gotejamentos superficial e subsuperficial. Irriga, Botucatu, v. 9, n. 1, p. 52-61, jan/abr., 2004.| Biblioteca(s): Embrapa Meio-Norte. |
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| 17. | | BROGLIO, S. M. F.; DIAS, N. da S.; COSTA, L. A. A.; LEMOS, E. E. P. First report and morphological redescription of Teleonemia morio (Stål) (Hemiptera, Tingidae) in Annona squamosa L. (Annonaceae) in Brazil. Revista Brasileira de Entomologia, São Paulo, v. 56, n. 1, p. 122-124, 2012.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
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