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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
31/07/2018 |
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Data da última atualização: |
24/01/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FREITAS, R. S.; BARBÉ, T. da C.; DAHER, R. F.; VIDAL, A. K. F.; STIDA, W. F.; SILVA, V. B. da; MENEZES, B. R. da S.; PEREIRA, A. V. |
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Afiliação: |
Rafael Souza Freitas, UENF; Tatiane da Costa Barbé, UENF; Rogério Figueiredo Daher, UENF; Ana Kesia Faria Vidal, UENF; Wanessa Francesconi Stida, UENF; Veronica Brito da Silva, UENF; Bruna Rafaela da Silva Menezes, UFRRJ; ANTONIO VANDER PEREIRA, CNPGL. |
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Título: |
Chemical composition and energy yield of elephant-grass biomass as function of five different production ages. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Journal of Agricultural Science (Toronto), v. 10, n. 1, p. 343-353, 2018. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract Elephant grass has high biomass production, with qualities suitable for conversion into bioenergy, but has long been used exclusively for animal feed and only in recent years has it become an energetic alternative. Therefore, it is necessary to select genotypes with potential for energy production. This study evaluated the effect of five harvest times (8, 12, 16, 20, and 24 weeks) on the yield and chemical composition related to biomass quality through combined polynomial regression analyses of the following elephant grass genotypes: Cubano Pinda, Mercker 86-México, Pusa Napier n°1, Mole de Volta Grande, P-241-Piracicaba, and King Grass. A completely randomized design with three replicates, in a split-plot arrangement, was adopted, including two factors (plots = genotypes, subplots = harvest times). The evaluated variables were whole-plant dry matter yield, in t ha-1 (DMY), percentage of neutral detergent fiber (%NDF), and percentage of acid detergent fiber (%ADF). The elephant-grass genotypes Cubano de Pinda, Mercker 86-México, and P-241-Piracicaba showed a linear first-degree effect as a function of the harvest intervals, indicating that they did not reach their maximum production potential. Genotypes Pusa Napier n°1, Mole de Volta Grande, and King Grass, in turn, had a linear second-degree effect. For the NDF variable, all genotypes showed a significant linear second-degree effect as a function of the harvest intervals, except P-241-Piracicaba, for which no regression was observed. For this genotype, there was a significant linear first-degree effect on the %ADF variable. MenosAbstract Elephant grass has high biomass production, with qualities suitable for conversion into bioenergy, but has long been used exclusively for animal feed and only in recent years has it become an energetic alternative. Therefore, it is necessary to select genotypes with potential for energy production. This study evaluated the effect of five harvest times (8, 12, 16, 20, and 24 weeks) on the yield and chemical composition related to biomass quality through combined polynomial regression analyses of the following elephant grass genotypes: Cubano Pinda, Mercker 86-México, Pusa Napier n°1, Mole de Volta Grande, P-241-Piracicaba, and King Grass. A completely randomized design with three replicates, in a split-plot arrangement, was adopted, including two factors (plots = genotypes, subplots = harvest times). The evaluated variables were whole-plant dry matter yield, in t ha-1 (DMY), percentage of neutral detergent fiber (%NDF), and percentage of acid detergent fiber (%ADF). The elephant-grass genotypes Cubano de Pinda, Mercker 86-México, and P-241-Piracicaba showed a linear first-degree effect as a function of the harvest intervals, indicating that they did not reach their maximum production potential. Genotypes Pusa Napier n°1, Mole de Volta Grande, and King Grass, in turn, had a linear second-degree effect. For the NDF variable, all genotypes showed a significant linear second-degree effect as a function of the harvest intervals, except P-241-Piracicaba, for which no regre... Mostrar Tudo |
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Palavras-Chave: |
Biomass quality; Linear regression; Pennisetum purpureum Schum. |
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Thesaurus Nal: |
Bioenergy. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/180617/1/Cnpgl-2018-JAgrScience-Vander-Chemical.pdf
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Marc: |
LEADER 02403naa a2200253 a 4500
001 2093716
005 2023-01-24
008 2018 bl uuuu u00u1 u #d
100 1 $aFREITAS, R. S.
245 $aChemical composition and energy yield of elephant-grass biomass as function of five different production ages.$h[electronic resource]
260 $c2018
520 $aAbstract Elephant grass has high biomass production, with qualities suitable for conversion into bioenergy, but has long been used exclusively for animal feed and only in recent years has it become an energetic alternative. Therefore, it is necessary to select genotypes with potential for energy production. This study evaluated the effect of five harvest times (8, 12, 16, 20, and 24 weeks) on the yield and chemical composition related to biomass quality through combined polynomial regression analyses of the following elephant grass genotypes: Cubano Pinda, Mercker 86-México, Pusa Napier n°1, Mole de Volta Grande, P-241-Piracicaba, and King Grass. A completely randomized design with three replicates, in a split-plot arrangement, was adopted, including two factors (plots = genotypes, subplots = harvest times). The evaluated variables were whole-plant dry matter yield, in t ha-1 (DMY), percentage of neutral detergent fiber (%NDF), and percentage of acid detergent fiber (%ADF). The elephant-grass genotypes Cubano de Pinda, Mercker 86-México, and P-241-Piracicaba showed a linear first-degree effect as a function of the harvest intervals, indicating that they did not reach their maximum production potential. Genotypes Pusa Napier n°1, Mole de Volta Grande, and King Grass, in turn, had a linear second-degree effect. For the NDF variable, all genotypes showed a significant linear second-degree effect as a function of the harvest intervals, except P-241-Piracicaba, for which no regression was observed. For this genotype, there was a significant linear first-degree effect on the %ADF variable.
650 $aBioenergy
653 $aBiomass quality
653 $aLinear regression
653 $aPennisetum purpureum Schum
700 1 $aBARBÉ, T. da C.
700 1 $aDAHER, R. F.
700 1 $aVIDAL, A. K. F.
700 1 $aSTIDA, W. F.
700 1 $aSILVA, V. B. da
700 1 $aMENEZES, B. R. da S.
700 1 $aPEREIRA, A. V.
773 $tJournal of Agricultural Science (Toronto)$gv. 10, n. 1, p. 343-353, 2018.
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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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Registro |
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Registro Completo
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
05/09/2022 |
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Data da última atualização: |
20/04/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
PERREIRA, J. de S.; FIGUEIREDO, P. I. de; ANJOS, J. S. dos; CAMPOS, F. S.; ARAUJO, G. G. L. de; VOLTOLINI, T. V. |
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Afiliação: |
JULIANA DE SOUZA PEREIRA; PRISCILA IZIDRO DE FIGUEIRÊDO; JEFFERSON SOUZA DOS ANJOS; FLEMING SENA CAMPOS, Universidade Federal do Agreste de Pernambuco; GHERMAN GARCIA LEAL DE ARAUJO, CPATSA; TADEU VINHAS VOLTOLINI, CPATSA. |
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Título: |
Forage yield and structural responses of spineless cactus Orelha de Elefante Mexicana at different planting densities. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Acta Scientiarum. Agronomy, v. 44, e53016, 2022. |
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ISSN: |
1807-8621 |
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DOI: |
10.4025/actasciagron.v44i1.53016 |
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Idioma: |
Inglês |
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Conteúdo: |
The objective was to evaluate the forage yield and structural responses of spineless cactus ?Orelha de Elefante Mexicana? (OEM) (Opuntia stricta (Haw.) Haw) at different planting densities. The experimental design was a randomized block with five treatments and four replicates, during two production cycles of 12 months each. The evaluated densities were 20,000; 25,000; 33,333; 50,000; and 100,000 plants ha-1. The increase in planting density caused a linear reduction in plant height, width, and mass, as well as in number of primary, secondary, tertiary, and overall cladodes. It also caused a linear increase in cladode area index, dry and green yield, water use efficiency, and forage accumulation rate. The increase in planting density promoted a quadratic effect on cladode thickness and dry matter content. Cladode thickness decreased with planting densities up to 47,500 plants ha-1 and increased from this point onwards. As for dry matter content, there was an increase up to the planting density of 61,428 plants ha-1 and a decrease from this point onwards. The increase in planting density of spineless cactus ?Orelha de Elefante Mexicana? caused changes in structural responses and in forage yield. The use of greater planting densities increased forage yield. |
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Palavras-Chave: |
Densidade de cultivo; Orelha de Elefante Mexicana; Produção de forragem; Semiárido. |
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Thesagro: |
Forragem; Palma Forrageira; Pastagem. |
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Thesaurus NAL: |
Forage; Opuntia stricta. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1146102/1/Forage-yield-and-structural-responses-of-spineless-cactus-2022.pdf
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Marc: |
LEADER 02227naa a2200313 a 4500
001 2146102
005 2023-04-20
008 2022 bl uuuu u00u1 u #d
022 $a1807-8621
024 7 $a10.4025/actasciagron.v44i1.53016$2DOI
100 1 $aPERREIRA, J. de S.
245 $aForage yield and structural responses of spineless cactus Orelha de Elefante Mexicana at different planting densities.$h[electronic resource]
260 $c2022
520 $aThe objective was to evaluate the forage yield and structural responses of spineless cactus ?Orelha de Elefante Mexicana? (OEM) (Opuntia stricta (Haw.) Haw) at different planting densities. The experimental design was a randomized block with five treatments and four replicates, during two production cycles of 12 months each. The evaluated densities were 20,000; 25,000; 33,333; 50,000; and 100,000 plants ha-1. The increase in planting density caused a linear reduction in plant height, width, and mass, as well as in number of primary, secondary, tertiary, and overall cladodes. It also caused a linear increase in cladode area index, dry and green yield, water use efficiency, and forage accumulation rate. The increase in planting density promoted a quadratic effect on cladode thickness and dry matter content. Cladode thickness decreased with planting densities up to 47,500 plants ha-1 and increased from this point onwards. As for dry matter content, there was an increase up to the planting density of 61,428 plants ha-1 and a decrease from this point onwards. The increase in planting density of spineless cactus ?Orelha de Elefante Mexicana? caused changes in structural responses and in forage yield. The use of greater planting densities increased forage yield.
650 $aForage
650 $aOpuntia stricta
650 $aForragem
650 $aPalma Forrageira
650 $aPastagem
653 $aDensidade de cultivo
653 $aOrelha de Elefante Mexicana
653 $aProdução de forragem
653 $aSemiárido
700 1 $aFIGUEIREDO, P. I. de
700 1 $aANJOS, J. S. dos
700 1 $aCAMPOS, F. S.
700 1 $aARAUJO, G. G. L. de
700 1 $aVOLTOLINI, T. V.
773 $tActa Scientiarum. Agronomy$gv. 44, e53016, 2022.
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Embrapa Semiárido (CPATSA) |
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