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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pecuária Sul. Para informações adicionais entre em contato com cppsul.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sul. |
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Data corrente: |
02/12/2022 |
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Data da última atualização: |
02/12/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
KRAHL, G.; BALDISSERA, T. C.; PINTO, C. E.; GARAGORRY, F. C.; WERNER, S. S.; LOPES, C. F.; RIBEIRO FILHO, H. M. N. |
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Afiliação: |
GUSTAVO KRAHL, University of the West of Santa Catarina; TIAGO CELSO BALDISSERA, Epagri - Company of Agricultural Research and Rural Extension of Santa Catarina; CASSIANO EDUARDO PINTO, Epagri - Company of Agricultural Research and Rural Extension of Santa Catarina; FABIO CERVO GARAGORRY, CPPSUL; SIMONE SILMARA WERNER, Epagri - Company of Agricultural Research and Rural Extension of Santa Catarina; CÁSSIO FELIPE LOPES, Santa Catarina State University; HENRIQUE MENDONÇA NUNES RIBEIRO FILHO, Santa Catarina State University. |
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Título: |
Can pasture defoliation management targets be similar under full sun and shaded conditions? |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Crop & Pasture Science, 21592, 31 Aug. 2022. |
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Idioma: |
Inglês |
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Notas: |
Online early. |
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Conteúdo: |
Abstract Context: Defoliation management targets applied to forages under the full sun have not yet been properly evaluated for shaded environments such as occur in integrated crop?livestock systems with the presence of trees. Aims: This study aimed to determine defoliation targets under full sun and shaded environments for the shade-tolerant perennial summer grass hybrid Axonopus catharinensis (giant missionary grass), widely used in pasture systems of South Brazil and Argentina. Methods: Four pre-defoliation canopy heights (15, 25, 35 and 45 cm) and four defoliation severities (20%, 40%, 60% and 80% reduction in pre-defoliation canopy height) were evaluated. Plants were grown in 0.15 m3 wooden boxes filled with sand/vermiculite substrate (1:1 v/v) and irrigated with a complete nutrient solution. An artificial shade structure was made with wooden slats, reducing light intensity by 50% for shaded plants. Key results: Herbage accumulation decreased by 54% in shaded plants compared with those under full sun. Regardless of the light environment, the lowest crude protein content (<150 g/kg dry matter) and the highest neutral detergent fibre content (>650 g/kg dry matter) were observed when the defoliation target height was >35 cm. Both shaded and full sun environments showed decreases in tiller density when defoliation severity was >60% of pre-defoliation canopy heights. Conclusions: Pre-defoliation canopy heights >35 cm and defoliation severity >60% of pre-defoliation canopy height should be avoided when managing A. catharinensis, regardless of the light environment. Implications: Recommended targets may be easily implemented by livestock producers and are similar for full sun and shade environments. Keywords: Axonopus catharinensis Valls, canopy height, defoliation severity, defoliation target, herbage accumulation, integrated crop-livestock systems, tiller density. MenosAbstract Context: Defoliation management targets applied to forages under the full sun have not yet been properly evaluated for shaded environments such as occur in integrated crop?livestock systems with the presence of trees. Aims: This study aimed to determine defoliation targets under full sun and shaded environments for the shade-tolerant perennial summer grass hybrid Axonopus catharinensis (giant missionary grass), widely used in pasture systems of South Brazil and Argentina. Methods: Four pre-defoliation canopy heights (15, 25, 35 and 45 cm) and four defoliation severities (20%, 40%, 60% and 80% reduction in pre-defoliation canopy height) were evaluated. Plants were grown in 0.15 m3 wooden boxes filled with sand/vermiculite substrate (1:1 v/v) and irrigated with a complete nutrient solution. An artificial shade structure was made with wooden slats, reducing light intensity by 50% for shaded plants. Key results: Herbage accumulation decreased by 54% in shaded plants compared with those under full sun. Regardless of the light environment, the lowest crude protein content (<150 g/kg dry matter) and the highest neutral detergent fibre content (>650 g/kg dry matter) were observed when the defoliation target height was >35 cm. Both shaded and full sun environments showed decreases in tiller density when defoliation severity was >60% of pre-defoliation canopy heights. Conclusions: Pre-defoliation canopy heights >35 cm and defoliation severity >60% of pre-defoliation ca... Mostrar Tudo |
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Thesagro: |
Altura; Desfolha; Integração; Pastagem. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02620naa a2200253 a 4500
001 2149158
005 2022-12-02
008 2022 bl uuuu u00u1 u #d
100 1 $aKRAHL, G.
245 $aCan pasture defoliation management targets be similar under full sun and shaded conditions?$h[electronic resource]
260 $c2022
500 $aOnline early.
520 $aAbstract Context: Defoliation management targets applied to forages under the full sun have not yet been properly evaluated for shaded environments such as occur in integrated crop?livestock systems with the presence of trees. Aims: This study aimed to determine defoliation targets under full sun and shaded environments for the shade-tolerant perennial summer grass hybrid Axonopus catharinensis (giant missionary grass), widely used in pasture systems of South Brazil and Argentina. Methods: Four pre-defoliation canopy heights (15, 25, 35 and 45 cm) and four defoliation severities (20%, 40%, 60% and 80% reduction in pre-defoliation canopy height) were evaluated. Plants were grown in 0.15 m3 wooden boxes filled with sand/vermiculite substrate (1:1 v/v) and irrigated with a complete nutrient solution. An artificial shade structure was made with wooden slats, reducing light intensity by 50% for shaded plants. Key results: Herbage accumulation decreased by 54% in shaded plants compared with those under full sun. Regardless of the light environment, the lowest crude protein content (<150 g/kg dry matter) and the highest neutral detergent fibre content (>650 g/kg dry matter) were observed when the defoliation target height was >35 cm. Both shaded and full sun environments showed decreases in tiller density when defoliation severity was >60% of pre-defoliation canopy heights. Conclusions: Pre-defoliation canopy heights >35 cm and defoliation severity >60% of pre-defoliation canopy height should be avoided when managing A. catharinensis, regardless of the light environment. Implications: Recommended targets may be easily implemented by livestock producers and are similar for full sun and shade environments. Keywords: Axonopus catharinensis Valls, canopy height, defoliation severity, defoliation target, herbage accumulation, integrated crop-livestock systems, tiller density.
650 $aAltura
650 $aDesfolha
650 $aIntegração
650 $aPastagem
700 1 $aBALDISSERA, T. C.
700 1 $aPINTO, C. E.
700 1 $aGARAGORRY, F. C.
700 1 $aWERNER, S. S.
700 1 $aLOPES, C. F.
700 1 $aRIBEIRO FILHO, H. M. N.
773 $tCrop & Pasture Science, 21592, 31 Aug. 2022.
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Registro original: |
Embrapa Pecuária Sul (CPPSUL) |
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| Registros recuperados : 17 | |
| 3. |  | TIRABOSCHI, L. A.; CRUZ, I.; FREITAS, S. de; PEREIRA, G. T.; SERIKAWA, R. H. Ação do predador Chrysoperla externa sobre ovos de Spodoptera frugiperda parasitados ou não por Trichogramma pretiosum. In: CONGRESSO NACIONAL DE MILHO E SORGO, 24., 2002, Florianópolis, SC. Meio ambiente e a nova agenda para o agronegócio de milho e sorgo: [resumos expandidos]. Sete Lagoas: ABMS: Embrapa Milho e Sorgo; Florianópolis: Epagri, 2002.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 4. | | AMIM, R. T.; FREITAS, S. de P.; FREITAS, I. L. de J.; SCARSO, M. F. Banco de sementes do solo após aplicação de herbicidas pré-emergentes durante quatro safras de cana-de-açúcar. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 51, n. 10, p. 1710-1719, out. 2016. Título em inglês: Soil seed bank after the application of pre-emergent herbicides during four sugarcane harvests.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 8. | | TAVARES, W. de S.; GOUVEIA, N. L.; FREITAS, S. de; CRUZ, I. Identificação e flutuação populacional de Crisopideos (Neuroptera, Chrysopidae) associados à cultura orgânica de Crotolaria juncea (Leguminosae). In: CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 22., 2008, Uberlândia. Ciência, tecnologia e inovação: resumos... Curitiba: Sociedade Brasileira de Entomologia, 2008.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 11. | | SOUZA JÚNIOR, A. A. de; GRAZZIOTTI, G. H.; PETACCI, F.; FREITAS, S. de S.; PARENTE, L. M. L.; LIÃO, L. M.; TAVARES, W. de S; CRUZ, I. Atividades inseticida e repelente de ar-turmerona isolada de rizomas de Curcuma longa L. In: REUNIÃO ANUAL SOCIEDADE BRASILEIRA DE QUÍMICA, 34., 2011, Florianópolis. A química para um mundo melhor. Florianópolis: SBQ, 2011.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 12. | | HUZIWARA, E.; AMIM, R. T.; FREITAS, I. L. J.; PELEGRINI, L. A. C.; OGLIARI, J.; PAES, H. M. F.; FREITAS, S. de P.; SOUZA, E. F. de. Levantamento fitossociológico na cultura do girassol em função de diferentes lâminas d'aguas e sua relação com a produtividade. In: REUNIÃO NACIONAL DE PESQUISA DO GIRASSOL, 18., SIMPÓSIO NACIONAL SOBRE A CULTURA DO GIRASSOL, 6., 2009. Pelotas. Anais... Pelotas: Embrapa Clima Temperado, 2009. p. 240-247. Editado por Ana Claudia Barneche de Oliveira, Ana Paula Afonso Scheneid da Rosa e Márcia Vizzotto.| Biblioteca(s): Embrapa Clima Temperado. |
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| 13. | | TAVARES, W. de S.; GRAZZIOTTI, G. H.; SOUZA JÚNIOR, A. A. de; FREITAS, S. de S.; CONSOLARO, H. N.; RIBEIRO, P. E. de A.; ZANUNCIO, J. C. Screening of extracts of leaves and stems of Psychotria spp. (Rubiaceae) against Sitophilus zeamais (Coleoptera: curculionidae) and Spodoptera frugiperda (Lepidoptera: noctuidae) for maize protection. Journal of Food Protection, Ames, v. 76, n. 11, p. 1892-1901, 2013.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 14. | | TAVARES, W. de S.; CRUZ, I.; PETACCI, F.; ASSIS JÚNIOR, S. L. de; FREITAS, S. de S.; ZANUNCIO, J. C.; SERRÃO, J. E. Potential use of Asteraceae extracts to control Spodoptera frugiperda (Lepidoptera: Noctuidae) and selectivity to their parasitoids Trichogramma pretiosum (Hymenoptera: Trichogrammatidae) and Telenomus remus (Hymenoptera: Scelionidae). Industrial Crops and Products, v. 30, p. 384-388, 2009.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 15. | | VERDIN FILHO, A. C.; FREITAS, S. de J.; COMÉRIO, M.; VOLPI, P. S.; COLODETTI, T. V.; RODRIGUES, W. N.; FONSECA, A. F. A. da; POSSE, S. C. P.; FONTES, A. G.; CHRISTO, B. F.; VIEIRA, L. J. D. Implications of the cut type and apex length of stem cuttings used for the production of plantlets of Conilon coffee. Coffee Science, v.15, e151770, 2020.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Café. |
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| 16. | | VERDIN FILHO, A. C.; ARAUJO, T. C.; FREITAS, S. de J.; FERRAO, M. A. G.; COMÉRIO, M.; ANDRADE, S. de; SENRA, J. F. de B.; MENDONÇA, L. V. P. Influence of the cut length of plagiotropic branches in conilon coffee stem cuttings for the seedling production. Coffee Science, v. 16, e161975, p. 1-7, 2021.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Café. |
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| 17. | | VERDIN FILHO, A. C.; VOLPI, P. S.; FERRÃO, R. G.; FERRAO, M. A. G.; FONSECA, A. F. A. da; FREITAS, S. de J.; COMÉRIO, M.; RODRIGUES, W. N.; COLODETTI, T. V.; ANDRADE JÚNIOR, S. de; POSSE, S. C. P.; VIEIRA, L. J. D.; ESPINDULA, M. C.; TOMAZ, M. A.; ARAÚJO, T. C. Produção de mudas clonais de cafeeiro: avanços na padronização dos cortes e dimensões de estacas. Vitória, ES: Incaper, 2022. 8 p. (Incaper. Documentos, 286).| Biblioteca(s): Embrapa Café; Embrapa Rondônia. |
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| Registros recuperados : 17 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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