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Registro Completo |
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
27/09/2004 |
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Data da última atualização: |
28/08/2018 |
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Autoria: |
SERRANO, G. M.; EGITO, A. A. do; McMANUS, C.; MARIANTE, A. da S. |
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Afiliação: |
Germana Maria Serrano, Universidade de Brasília - UnB/Faculdade de Agronomia e Medicina Veterinária; ANDREA ALVES DO EGITO, CENARGEN; Concepta McManus, Universidade de Brasília - UnB/Faculdade de Agronomia e Medicina Veterinária; ARTHUR DA SILVA MARIANTE, Cenargen. |
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Título: |
Genetic diversity and population structure of Brazilian native bovine breeds. |
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Ano de publicação: |
2004 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 39, n. 6, p. 543-549, junho 2004 |
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Idioma: |
Inglês |
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Notas: |
Título em português: Diversidade genética e estrutura de população de bovinos nativos. |
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Conteúdo: |
Conservation and improvement strategies should be based on the association between genetic and phenotypic characteristics. The objective of this work was to characterize five native Brazilian cattle breeds (Caracu, Crioulo Lageano, Curraleiro, National Polled and Pantaneiro) and two commercial breeds (Holstein and Nellore) using RAPD technique to estimate genetic distances and variability between and within breeds. Genetic relationships were investigated using 22 primers which generated 122 polymorphic bands. Analysis of molecular variance indicated that most of the genetic variation lay among individuals within populations. The genetic variabilities between pairs of breeds were statistically significant. The smallest genetic divergence was between Crioulo Lageano and Curraleiro. The National Polled, although historically considered to be of Bos taurus aquitanicus origin, similar to the Caracu, was grouped together with the other breeds of Bos taurus ibericus origin. Generally, the individual breeds formed distinct clusters except the National Polled. The RAPD technique was capable to distinguish genetically between the breeds studied; the Caracu, Crioulo Lageano, Curraleiro and Pantaneiro may be considered distinct genetic entities thereby proving the uniqueness of the populations; the National Polled has not been able to re-establish itself after its decline in the 1950s, thereby losing its genetic identity. |
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Palavras-Chave: |
animal conservation; caracterização genética; conservação animal; genetic characterization; RAPD. |
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Thesagro: |
Bovino. |
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Thesaurus Nal: |
cattle. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/AI-SEDE/28219/1/39n06a05.pdf
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Marc: |
LEADER 02247naa a2200253 a 4500
001 1111737
005 2018-08-28
008 2004 bl uuuu u00u1 u #d
100 1 $aSERRANO, G. M.
245 $aGenetic diversity and population structure of Brazilian native bovine breeds.
260 $c2004
500 $aTítulo em português: Diversidade genética e estrutura de população de bovinos nativos.
520 $aConservation and improvement strategies should be based on the association between genetic and phenotypic characteristics. The objective of this work was to characterize five native Brazilian cattle breeds (Caracu, Crioulo Lageano, Curraleiro, National Polled and Pantaneiro) and two commercial breeds (Holstein and Nellore) using RAPD technique to estimate genetic distances and variability between and within breeds. Genetic relationships were investigated using 22 primers which generated 122 polymorphic bands. Analysis of molecular variance indicated that most of the genetic variation lay among individuals within populations. The genetic variabilities between pairs of breeds were statistically significant. The smallest genetic divergence was between Crioulo Lageano and Curraleiro. The National Polled, although historically considered to be of Bos taurus aquitanicus origin, similar to the Caracu, was grouped together with the other breeds of Bos taurus ibericus origin. Generally, the individual breeds formed distinct clusters except the National Polled. The RAPD technique was capable to distinguish genetically between the breeds studied; the Caracu, Crioulo Lageano, Curraleiro and Pantaneiro may be considered distinct genetic entities thereby proving the uniqueness of the populations; the National Polled has not been able to re-establish itself after its decline in the 1950s, thereby losing its genetic identity.
650 $acattle
650 $aBovino
653 $aanimal conservation
653 $acaracterização genética
653 $aconservação animal
653 $agenetic characterization
653 $aRAPD
700 1 $aEGITO, A. A. do
700 1 $aMcMANUS, C.
700 1 $aMARIANTE, A. da S.
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 39, n. 6, p. 543-549, junho 2004
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Registro original: |
Embrapa Unidades Centrais (AI-SEDE) |
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Registro Completo
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Biblioteca(s): |
Embrapa Agrossilvipastoril. |
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Data corrente: |
16/06/2023 |
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Data da última atualização: |
16/06/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 4 |
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Autoria: |
BEHLING, M.; SOUZA, A. L. de; LANGE, A.; CAMARGO, D.; BARRETO, G. U. |
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Afiliação: |
MAUREL BEHLING, CPAMT; ANDRE LUIZ DE SOUZA, UNIVERSIDADE FEDERAL DE MATO GROSSO; ANDERSON LANGE, UNIVERSIDADE FEDERAL DE MATO GROSSO; DIEGO CAMARGO, UNIVERSIDADE FEDERAL DE MATO GROSSO; GERSON UVIDA BARRETO, UNIVERSIDADE FEDERAL DE MATO GROSSO. |
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Título: |
Effect of thinning eucalyptus trees on soybean productivity in integrated crop-livestock-forestry systems. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Ciência Rural, v. 53, n. 9, e20220202, 2023. |
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ISSN: |
1678-4596 |
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DOI: |
https://doi.org/10.1590/0103-8478cr20220202 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: The aim of the study was to evaluate the effects of integrated crop-livestock-forestry (ICLF) systems and the thinning of eucalyptus trees on the agronomical performance of soybean. Treatments consisted of cultivation under: crops under full sunlight (CFS) conditions; ICLF with triple-row tree configuration (ICLFT) in which trees were submitted to selective thinning in the fifth year after planting through removal of 50% of trees while maintaining triple-row bands; and ICLF with single-row tree band configuration (ICLFS) in which the lateral rows of the triple-row tree bands were subjected to systematic thinning at the fourth year after planting. The physiological and agronomical variables of the soybean crop were evaluated at the R5 and R8 reproductive stages during the eighth harvesting season (2018/2019). Soybean sampling was carried out at five random positions in the CFS and in four transects at distances of 3, 6, 10 and 15 m from the tree bands in both the north and south faces of the ICLF systems. There were no differences between soybean grown under the ICLF and CFS systems with respect to specific leaf area, plant density, lodging index and mass of a thousand grains. However, the ICLF increased dry leaf mass and leaf area index and reduced soybean plant heights. Soybean productivity was reduced by 26% in ICLF-T and 14% in ICLF-S, that is, a 12% reduction in the productivity loss with systematic thinning. It is concluded that ICLF reduces soybean productivity in the effective grain production area of the system, regardless of the degree of thinning, although systematic thinning by removing the lateral tree lines to conversion of triple-rows into single-rows minimizes the loss of soybean grain yield. | Resumo: O objetivo do trabalho foi avaliar o efeito da integração lavoura-pecuária-floresta (ILPF) e do desbaste das árvores de eucalipto sobre o desempenho agronômico da soja. Os tratamentos consistiram em cultivo convencional a pleno sol (CPS), ILPF com configuração de fileira tripla (ILPF-T), em que as fileiras triplas de árvores foram submetidas ao desbaste seletivo no quinto ano após o plantio por meio da remoção de 50% das árvores e ILPF com configuração de fileira simples (ILPF-S), em que as faixas triplas de árvores foram submetidas ao desbaste sistemático no quarto ano após o plantio resultando em fileiras simples. As variáveis fisiológicas e agronômicas da soja foram avaliadas nos estágios reprodutivos R5 e R8 durante a oitava safra (2018/2019). As amostragens de soja foram realizadas em cinco posições aleatórias no CPS, enquanto as coletas foram realizadas em quatro transectos a distâncias de 3, 6, 10 e 15 m das faixas das árvores nas faces norte e sul dos sistemas ILPF. Não houve diferenças entre a soja cultivada nos sistemas ILPF e CPS em relação à área foliar específica, densidade de plantas, índice de acamamento e massa de mil grãos. No entanto, a ILPF aumentou a massa de folhas secas e o índice de área foliar e reduziu as alturas das plantas de soja. No desbaste seletivo de 50% das árvores (ILPF-T) a perda de produtividade da soja foi de 26%, enquanto no desbaste sistemático (ILPF-S) ela foi de 14%, ou seja, redução de 12% na perda de produtividade da soja. Portanto, a ILPF reduz o rendimento de grãos da soja independente da intensidade do desbaste realizado e o desbaste sistemático, com remoção das linhas laterais para conversão do sistema para linhas simples (ILPF-S) proporciona menor perda de rendimento de grãos da soja. MenosAbstract: The aim of the study was to evaluate the effects of integrated crop-livestock-forestry (ICLF) systems and the thinning of eucalyptus trees on the agronomical performance of soybean. Treatments consisted of cultivation under: crops under full sunlight (CFS) conditions; ICLF with triple-row tree configuration (ICLFT) in which trees were submitted to selective thinning in the fifth year after planting through removal of 50% of trees while maintaining triple-row bands; and ICLF with single-row tree band configuration (ICLFS) in which the lateral rows of the triple-row tree bands were subjected to systematic thinning at the fourth year after planting. The physiological and agronomical variables of the soybean crop were evaluated at the R5 and R8 reproductive stages during the eighth harvesting season (2018/2019). Soybean sampling was carried out at five random positions in the CFS and in four transects at distances of 3, 6, 10 and 15 m from the tree bands in both the north and south faces of the ICLF systems. There were no differences between soybean grown under the ICLF and CFS systems with respect to specific leaf area, plant density, lodging index and mass of a thousand grains. However, the ICLF increased dry leaf mass and leaf area index and reduced soybean plant heights. Soybean productivity was reduced by 26% in ICLF-T and 14% in ICLF-S, that is, a 12% reduction in the productivity loss with systematic thinning. It is concluded that ICLF reduces soybean productivi... Mostrar Tudo |
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Palavras-Chave: |
ILPF; Integração lavoura-pecuária-floresta; Sistema Agrossilvipastoril. |
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Thesagro: |
Agrossilvicultura; Desbaste; Eucalipto; Glycine Max; Hibrido; Rendimento; Sistema de Produção. |
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Thesaurus NAL: |
Agroforestry. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1154466/1/2023-cpamt-artigo-mb-effect-thinning-eucalypus-trees-soybean-productivity-integrated-crop-livestock-systems.pdf
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Marc: |
LEADER 04520naa a2200325 a 4500
001 2154466
005 2023-06-16
008 2023 bl uuuu u00u1 u #d
022 $a1678-4596
024 7 $ahttps://doi.org/10.1590/0103-8478cr20220202$2DOI
100 1 $aBEHLING, M.
245 $aEffect of thinning eucalyptus trees on soybean productivity in integrated crop-livestock-forestry systems.$h[electronic resource]
260 $c2023
520 $aAbstract: The aim of the study was to evaluate the effects of integrated crop-livestock-forestry (ICLF) systems and the thinning of eucalyptus trees on the agronomical performance of soybean. Treatments consisted of cultivation under: crops under full sunlight (CFS) conditions; ICLF with triple-row tree configuration (ICLFT) in which trees were submitted to selective thinning in the fifth year after planting through removal of 50% of trees while maintaining triple-row bands; and ICLF with single-row tree band configuration (ICLFS) in which the lateral rows of the triple-row tree bands were subjected to systematic thinning at the fourth year after planting. The physiological and agronomical variables of the soybean crop were evaluated at the R5 and R8 reproductive stages during the eighth harvesting season (2018/2019). Soybean sampling was carried out at five random positions in the CFS and in four transects at distances of 3, 6, 10 and 15 m from the tree bands in both the north and south faces of the ICLF systems. There were no differences between soybean grown under the ICLF and CFS systems with respect to specific leaf area, plant density, lodging index and mass of a thousand grains. However, the ICLF increased dry leaf mass and leaf area index and reduced soybean plant heights. Soybean productivity was reduced by 26% in ICLF-T and 14% in ICLF-S, that is, a 12% reduction in the productivity loss with systematic thinning. It is concluded that ICLF reduces soybean productivity in the effective grain production area of the system, regardless of the degree of thinning, although systematic thinning by removing the lateral tree lines to conversion of triple-rows into single-rows minimizes the loss of soybean grain yield. | Resumo: O objetivo do trabalho foi avaliar o efeito da integração lavoura-pecuária-floresta (ILPF) e do desbaste das árvores de eucalipto sobre o desempenho agronômico da soja. Os tratamentos consistiram em cultivo convencional a pleno sol (CPS), ILPF com configuração de fileira tripla (ILPF-T), em que as fileiras triplas de árvores foram submetidas ao desbaste seletivo no quinto ano após o plantio por meio da remoção de 50% das árvores e ILPF com configuração de fileira simples (ILPF-S), em que as faixas triplas de árvores foram submetidas ao desbaste sistemático no quarto ano após o plantio resultando em fileiras simples. As variáveis fisiológicas e agronômicas da soja foram avaliadas nos estágios reprodutivos R5 e R8 durante a oitava safra (2018/2019). As amostragens de soja foram realizadas em cinco posições aleatórias no CPS, enquanto as coletas foram realizadas em quatro transectos a distâncias de 3, 6, 10 e 15 m das faixas das árvores nas faces norte e sul dos sistemas ILPF. Não houve diferenças entre a soja cultivada nos sistemas ILPF e CPS em relação à área foliar específica, densidade de plantas, índice de acamamento e massa de mil grãos. No entanto, a ILPF aumentou a massa de folhas secas e o índice de área foliar e reduziu as alturas das plantas de soja. No desbaste seletivo de 50% das árvores (ILPF-T) a perda de produtividade da soja foi de 26%, enquanto no desbaste sistemático (ILPF-S) ela foi de 14%, ou seja, redução de 12% na perda de produtividade da soja. Portanto, a ILPF reduz o rendimento de grãos da soja independente da intensidade do desbaste realizado e o desbaste sistemático, com remoção das linhas laterais para conversão do sistema para linhas simples (ILPF-S) proporciona menor perda de rendimento de grãos da soja.
650 $aAgroforestry
650 $aAgrossilvicultura
650 $aDesbaste
650 $aEucalipto
650 $aGlycine Max
650 $aHibrido
650 $aRendimento
650 $aSistema de Produção
653 $aILPF
653 $aIntegração lavoura-pecuária-floresta
653 $aSistema Agrossilvipastoril
700 1 $aSOUZA, A. L. de
700 1 $aLANGE, A.
700 1 $aCAMARGO, D.
700 1 $aBARRETO, G. U.
773 $tCiência Rural$gv. 53, n. 9, e20220202, 2023.
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Embrapa Agrossilvipastoril (CPAMT) |
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