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Registro Completo |
Biblioteca(s): |
Embrapa Gado de Corte; Embrapa Meio-Norte; Embrapa Roraima. |
Data corrente: |
22/08/2022 |
Data da última atualização: |
05/01/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
COSTA, N. de L.; JANK, L.; MAGALHAES, J. A.; BENDAHAN, A. B.; RODRIGUES, B. H. N.; SANTOS, F. J. de S. |
Afiliação: |
NEWTON DE LUCENA COSTA, CPAF-RR; LIANA JANK, CNPGC; JOAO AVELAR MAGALHAES, CPAMN; AMAURY BURLAMAQUI BENDAHAN, CPAF-RR; BRAZ HENRIQUE NUNES RODRIGUES, CPAMN; FRANCISCO JOSE DE SEIXAS SANTOS, CPAMN. |
Título: |
Agronomic performance and chemical composition of genotypes and cultivars of Megathyrsus maximus in Roraima's savannas. |
Ano de publicação: |
2022 |
Fonte/Imprenta: |
Research, Society and Development, v. 11, n. 9, e55011932285, 2022. |
Idioma: |
Inglês Português |
Conteúdo: |
The agronomic performance of 23 genotypes and six commercial cultivars of Megathyrsus maximus was evaluatet under natural field conditions at the Roraima's savannas, during the period of June 2015 to September 2019. The evaluated parameters were green dry matter (GDM) yield, leaf, stem and dead DM yields, crude protein (CP) contents, concentrations of neutral detergent fiber and acid detergent fiber. The genotypes and cultivars evaluated affected the yields and the chemical composition of the forage. The most promising genotypes showed superior agronomic performance than the commercial cultivars evaluated. The genotypes B 16; PM10; PM40 and PM14 showed the highest green dry matter yields and forage with better nutritional quality, higher CP and lower fiber contents. These showed average yields of 5,103 and 3,925 kg ha-¹, for green DM and leaf DM, respectively, which represented increments of 20.7 and 12.8%, compared with those registered for the commercial cultivars. The genotype PM15 evidenced the highest productive performance during the dry season, constituting an option for regions with climatic restrictions, notably reduced rainfall. All genotypes and cultivars showed seasonal growth. The genotypes that showed the best seasonal distribution of forage production were PM11, PM36, PM30 and PM33, which provided 47.9; 46.8; 41.0 and 40.7% of GDM production during the dry season. In general, higher crude protein and lower fiber contents were directly correlated with the percentage of leaves in the available forage. The evaluated genotypes presented great genetic variability for the accumulation of forage and its chemical composition that can subsidize the generation of new commercial cultivars. MenosThe agronomic performance of 23 genotypes and six commercial cultivars of Megathyrsus maximus was evaluatet under natural field conditions at the Roraima's savannas, during the period of June 2015 to September 2019. The evaluated parameters were green dry matter (GDM) yield, leaf, stem and dead DM yields, crude protein (CP) contents, concentrations of neutral detergent fiber and acid detergent fiber. The genotypes and cultivars evaluated affected the yields and the chemical composition of the forage. The most promising genotypes showed superior agronomic performance than the commercial cultivars evaluated. The genotypes B 16; PM10; PM40 and PM14 showed the highest green dry matter yields and forage with better nutritional quality, higher CP and lower fiber contents. These showed average yields of 5,103 and 3,925 kg ha-¹, for green DM and leaf DM, respectively, which represented increments of 20.7 and 12.8%, compared with those registered for the commercial cultivars. The genotype PM15 evidenced the highest productive performance during the dry season, constituting an option for regions with climatic restrictions, notably reduced rainfall. All genotypes and cultivars showed seasonal growth. The genotypes that showed the best seasonal distribution of forage production were PM11, PM36, PM30 and PM33, which provided 47.9; 46.8; 41.0 and 40.7% of GDM production during the dry season. In general, higher crude protein and lower fiber contents were directly correlated with... Mostrar Tudo |
Palavras-Chave: |
Fiber; Green dry matter. |
Thesagro: |
Composição Química; Folha; Forragem; Genótipo; Proteína Bruta. |
Thesaurus Nal: |
Chemical composition; Crude protein; Cultivars; Dry matter content; Forage; Genotype; Leaves; Megathyrsus maximus. |
Categoria do assunto: |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1145641/1/RSD-2022-Agronomic-performance-and-chemical-composition-of-genotypes-and-cultivars-of-Megathyrsus-maximus-in-Roraimas-savannas-1.pdf
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Marc: |
LEADER 02763naa a2200361 a 4500 001 2145641 005 2023-01-05 008 2022 bl uuuu u00u1 u #d 100 1 $aCOSTA, N. de L. 245 $aAgronomic performance and chemical composition of genotypes and cultivars of Megathyrsus maximus in Roraima's savannas.$h[electronic resource] 260 $c2022 520 $aThe agronomic performance of 23 genotypes and six commercial cultivars of Megathyrsus maximus was evaluatet under natural field conditions at the Roraima's savannas, during the period of June 2015 to September 2019. The evaluated parameters were green dry matter (GDM) yield, leaf, stem and dead DM yields, crude protein (CP) contents, concentrations of neutral detergent fiber and acid detergent fiber. The genotypes and cultivars evaluated affected the yields and the chemical composition of the forage. The most promising genotypes showed superior agronomic performance than the commercial cultivars evaluated. The genotypes B 16; PM10; PM40 and PM14 showed the highest green dry matter yields and forage with better nutritional quality, higher CP and lower fiber contents. These showed average yields of 5,103 and 3,925 kg ha-¹, for green DM and leaf DM, respectively, which represented increments of 20.7 and 12.8%, compared with those registered for the commercial cultivars. The genotype PM15 evidenced the highest productive performance during the dry season, constituting an option for regions with climatic restrictions, notably reduced rainfall. All genotypes and cultivars showed seasonal growth. The genotypes that showed the best seasonal distribution of forage production were PM11, PM36, PM30 and PM33, which provided 47.9; 46.8; 41.0 and 40.7% of GDM production during the dry season. In general, higher crude protein and lower fiber contents were directly correlated with the percentage of leaves in the available forage. The evaluated genotypes presented great genetic variability for the accumulation of forage and its chemical composition that can subsidize the generation of new commercial cultivars. 650 $aChemical composition 650 $aCrude protein 650 $aCultivars 650 $aDry matter content 650 $aForage 650 $aGenotype 650 $aLeaves 650 $aMegathyrsus maximus 650 $aComposição Química 650 $aFolha 650 $aForragem 650 $aGenótipo 650 $aProteína Bruta 653 $aFiber 653 $aGreen dry matter 700 1 $aJANK, L. 700 1 $aMAGALHAES, J. A. 700 1 $aBENDAHAN, A. B. 700 1 $aRODRIGUES, B. H. N. 700 1 $aSANTOS, F. J. de S. 773 $tResearch, Society and Development$gv. 11, n. 9, e55011932285, 2022.
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Registro original: |
Embrapa Roraima (CPAF-RR) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Oriental. Para informações adicionais entre em contato com cpatu.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Amazônia Oriental. |
Data corrente: |
06/03/2013 |
Data da última atualização: |
28/06/2018 |
Tipo da produção científica: |
Capítulo em Livro Técnico-Científico |
Autoria: |
HOMMA, A. K. O.; MENEZES, A. J. E. A. de; MATOS, G. B. de; FERREIRA, C. A. P. |
Afiliação: |
ALFREDO KINGO OYAMA HOMMA, CPATU; ANTONIO JOSE ELIAS A DE MENEZES, CPATU; GRIMOALDO BANDEIRA DE MATOS, CPATU; CÉLIO ARMANDO PALHETA FERREIRA, CPATU. |
Título: |
Manejando a planta e o homem: os bacurizeiros no Nordeste paraense. |
Ano de publicação: |
2007 |
Fonte/Imprenta: |
In: LIMA, M. da C. (Org.). Bacuri: agrobiodiversidade. São Luís: Instituto Interamericano de Cooperação para a Agricultura, 2007. |
Páginas: |
p. 171-210. |
Idioma: |
Português |
Palavras-Chave: |
Pará. |
Thesagro: |
Bacuri; Manejo. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00612naa a2200193 a 4500 001 1952314 005 2018-06-28 008 2007 bl uuuu u00u1 u #d 100 1 $aHOMMA, A. K. O. 245 $aManejando a planta e o homem$bos bacurizeiros no Nordeste paraense. 260 $c2007 300 $ap. 171-210. 650 $aBacuri 650 $aManejo 653 $aPará 700 1 $aMENEZES, A. J. E. A. de 700 1 $aMATOS, G. B. de 700 1 $aFERREIRA, C. A. P. 773 $tIn: LIMA, M. da C. (Org.). Bacuri: agrobiodiversidade. São Luís: Instituto Interamericano de Cooperação para a Agricultura, 2007.
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