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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
26/11/2018 |
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Data da última atualização: |
26/11/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BLIND, A. D.; VALENTE, M. S. F.; LOPES, M. T. G.; RESENDE, M. D. V. de. |
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Afiliação: |
Ariel Dotto Blind, INPA; Mágno Sávio Ferreira Valente, Universidade Federal do Amazonas; Maria Teresa Gomes Lopes, Universidade Federal do Amazonas; MARCOS DEON VILELA DE RESENDE, CNPF. |
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Título: |
Estimativa de parâmetros genéticos, análise de trilha e seleção em bucha vegetal para caracteres agronômicos. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Revista Brasileira de Ciências Agrárias, Recife, v. 13, n. 2, e5522, 2018. 8 p. |
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DOI: |
10.5039/agraria.v13i2a5522 |
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Idioma: |
Português |
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Conteúdo: |
O objetivo deste trabalho foi estimar parâmetros genéticos e realizar estudos de associação entre caracteres de interesse agronômico em 24 acessos de bucha vegetal (Luffa cylindrica L.) provenientes de sete Estados brasileiros, com o intuito de selecionar genótipos potencialmente promissores para serem introduzidos em programas de melhoramento da cultura. Foram avaliados nove caracteres relacionados a produção e a qualidade de frutos e fibras de importância econômica para a espécie. A presença de variabilidade genética e altas herdabilidades em nível de médias (0,70 - 0,99) indicaram a possibilidade de ganhos expressivos com a aplicação da seleção fenotípica para os caracteres de interesse. Ganho genético de 42,79% foi obtido para produção de fibras após seleção dos oito genótipos superiores. As maiores correlações (r > 0,73) foram alcançadas entre os caracteres relacionados a circunferência dos frutos e espessura de fibra. A massa seca da fibra e o número de frutos apresentaram elevados efeitos diretos sobre a produção de fibras, todavia, com efeitos indiretos indesejáveis entre estes. O uso de índice de seleção possibilitou ganhos simultâneos em caracteres correlacionados negativamente, gerando boa perspectiva para o desenvolvimento de cultivares de bucha para uso na agroindústria de acordo com o mercado para qual o produto se destina. |
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Palavras-Chave: |
Ganho genético; Genetic gain; Herdabilidade; Luffa cylindrica; Mixed models; Modelos mistos. |
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Thesaurus Nal: |
Heritability. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/187027/1/2018-M.Deon-RBCA-Estimativa.pdf
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Marc: |
LEADER 02207naa a2200253 a 4500
001 2100076
005 2018-11-26
008 2018 bl uuuu u00u1 u #d
024 7 $a10.5039/agraria.v13i2a5522$2DOI
100 1 $aBLIND, A. D.
245 $aEstimativa de parâmetros genéticos, análise de trilha e seleção em bucha vegetal para caracteres agronômicos.$h[electronic resource]
260 $c2018
520 $aO objetivo deste trabalho foi estimar parâmetros genéticos e realizar estudos de associação entre caracteres de interesse agronômico em 24 acessos de bucha vegetal (Luffa cylindrica L.) provenientes de sete Estados brasileiros, com o intuito de selecionar genótipos potencialmente promissores para serem introduzidos em programas de melhoramento da cultura. Foram avaliados nove caracteres relacionados a produção e a qualidade de frutos e fibras de importância econômica para a espécie. A presença de variabilidade genética e altas herdabilidades em nível de médias (0,70 - 0,99) indicaram a possibilidade de ganhos expressivos com a aplicação da seleção fenotípica para os caracteres de interesse. Ganho genético de 42,79% foi obtido para produção de fibras após seleção dos oito genótipos superiores. As maiores correlações (r > 0,73) foram alcançadas entre os caracteres relacionados a circunferência dos frutos e espessura de fibra. A massa seca da fibra e o número de frutos apresentaram elevados efeitos diretos sobre a produção de fibras, todavia, com efeitos indiretos indesejáveis entre estes. O uso de índice de seleção possibilitou ganhos simultâneos em caracteres correlacionados negativamente, gerando boa perspectiva para o desenvolvimento de cultivares de bucha para uso na agroindústria de acordo com o mercado para qual o produto se destina.
650 $aHeritability
653 $aGanho genético
653 $aGenetic gain
653 $aHerdabilidade
653 $aLuffa cylindrica
653 $aMixed models
653 $aModelos mistos
700 1 $aVALENTE, M. S. F.
700 1 $aLOPES, M. T. G.
700 1 $aRESENDE, M. D. V. de
773 $tRevista Brasileira de Ciências Agrárias, Recife$gv. 13, n. 2, e5522, 2018. 8 p.
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Registro original: |
Embrapa Florestas (CNPF) |
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Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Ocidental. |
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Data corrente: |
30/09/1999 |
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Data da última atualização: |
28/12/2018 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
DUNISCH, O.; BAUCH, J.; GASPAROTTO, L.; NEVES, E.; AZEVEDO, C. de; LIMA, R. de; MORAIS, R. de. |
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Afiliação: |
OLIVER DUNISCH, University of Hamburg; JOSEF BAUCH, University of Hamburg; LUADIR GASPAROTTO, CPAA; EDINELSON JOSE MACIEL NEVES, CPAA; CELSO PAULO DE AZEVEDO, CPAA; ROBERVAL MONTEIRO BEZERRA DE LIMA, CPAA; RONALDO RIBEIRO DE MORAIS, CPAA. |
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Título: |
Environment-tree growth relationships of plantation grown tropical tree species as a basis for sustainable timber production in mixed culture systems in Central Amazonia. |
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Ano de publicação: |
1998 |
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Fonte/Imprenta: |
In: SHIFT - WORKSHOP, 3., 1998, Manaus. Proceedings... Bonn: BMBF, 1998. |
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Páginas: |
p. 399-411. |
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Idioma: |
Inglês |
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Conteúdo: |
This comparative study on environment-tree growth relationships of the high quality native tree species Swietenia macrophylla King (mogno) and Carapa guianensis Aubl. (andiroba) is part of the development of sustainable landuse systems on "terra firme" sites of the Central Amazon within the Brazilian-German research cooperation SHIFT. As to get information on the site demands and the growth characteristics of plantation systems of mogno and andiroba: (1) monoculture system, and (2) an enrichment system (both stablished in 1992 at the experimental site of the Embrapa Amazonia Ocidental, Manaus-AM). The water balance of the plantations was quantified by evaporation and transpiration/xylem flux measurements as well as the calculation of the water run-through in the soil (Cl-method). The K supply of the trees was investigated by quantified input (precipitation, throughfall, stemflow, litterfall) and output (K uptake of the vegetation, leaching out of the soil). The cambial growth dynamics of the trees was dated in one-month-intervals by the pinning method - period April 1995 until December 1996). A reduced soil water content with a suction force in the upper soil layer (depth 20cm) of 500 hPa to 900 hPa was found from August until November in both plantation systems. High evaporation and water run-through caused short periods with low soil water contents (300 hPa to 400 hPa) even during the wet season in monoculture systems. A cambial dormancy or a reduced rate of cambial cell divisions of mogno was found during the drier season from August to December whereas the cambial growth dynamics of andiroba was not correlated with the annual course of the soil water content. K cycling was improved in the enrichment system compared to the monoculture system, whereas the K supply of the soil was reduced. The reduced xylem production of mogno in the enrichment system compared to the monoculture system was correlated with the low K content of the soil in this system. From these results i was concluded that andiroba is more competitive for sustainable growth on this site than mogno. MenosThis comparative study on environment-tree growth relationships of the high quality native tree species Swietenia macrophylla King (mogno) and Carapa guianensis Aubl. (andiroba) is part of the development of sustainable landuse systems on "terra firme" sites of the Central Amazon within the Brazilian-German research cooperation SHIFT. As to get information on the site demands and the growth characteristics of plantation systems of mogno and andiroba: (1) monoculture system, and (2) an enrichment system (both stablished in 1992 at the experimental site of the Embrapa Amazonia Ocidental, Manaus-AM). The water balance of the plantations was quantified by evaporation and transpiration/xylem flux measurements as well as the calculation of the water run-through in the soil (Cl-method). The K supply of the trees was investigated by quantified input (precipitation, throughfall, stemflow, litterfall) and output (K uptake of the vegetation, leaching out of the soil). The cambial growth dynamics of the trees was dated in one-month-intervals by the pinning method - period April 1995 until December 1996). A reduced soil water content with a suction force in the upper soil layer (depth 20cm) of 500 hPa to 900 hPa was found from August until November in both plantation systems. High evaporation and water run-through caused short periods with low soil water contents (300 hPa to 400 hPa) even during the wet season in monoculture systems. A cambial dormancy or a reduced rate of cambial cell d... Mostrar Tudo |
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Palavras-Chave: |
Agrofloresta; Amazonas; Brasil; Especie florestal; Growth; Manaus. |
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Thesagro: |
Andiroba; Carapa Guianensis; Crescimento; Cultivo Multiplo; Floresta Tropical Úmida; Meio Ambiente; Mogno; Planta Produtora de Madeira; Swietenia Macrophylla. |
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Thesaurus NAL: |
agroforestry; environment; forest trees; multiple cropping; tropical rain forests; woody plants. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/113737/1/Shift399.pdf
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Marc: |
LEADER 03383nam a2200445 a 4500
001 1668398
005 2018-12-28
008 1998 bl uuuu u00u1 u #d
100 1 $aDUNISCH, O.
245 $aEnvironment-tree growth relationships of plantation grown tropical tree species as a basis for sustainable timber production in mixed culture systems in Central Amazonia.
260 $aIn: SHIFT - WORKSHOP, 3., 1998, Manaus. Proceedings... Bonn: BMBF$c1998
300 $ap. 399-411.
520 $aThis comparative study on environment-tree growth relationships of the high quality native tree species Swietenia macrophylla King (mogno) and Carapa guianensis Aubl. (andiroba) is part of the development of sustainable landuse systems on "terra firme" sites of the Central Amazon within the Brazilian-German research cooperation SHIFT. As to get information on the site demands and the growth characteristics of plantation systems of mogno and andiroba: (1) monoculture system, and (2) an enrichment system (both stablished in 1992 at the experimental site of the Embrapa Amazonia Ocidental, Manaus-AM). The water balance of the plantations was quantified by evaporation and transpiration/xylem flux measurements as well as the calculation of the water run-through in the soil (Cl-method). The K supply of the trees was investigated by quantified input (precipitation, throughfall, stemflow, litterfall) and output (K uptake of the vegetation, leaching out of the soil). The cambial growth dynamics of the trees was dated in one-month-intervals by the pinning method - period April 1995 until December 1996). A reduced soil water content with a suction force in the upper soil layer (depth 20cm) of 500 hPa to 900 hPa was found from August until November in both plantation systems. High evaporation and water run-through caused short periods with low soil water contents (300 hPa to 400 hPa) even during the wet season in monoculture systems. A cambial dormancy or a reduced rate of cambial cell divisions of mogno was found during the drier season from August to December whereas the cambial growth dynamics of andiroba was not correlated with the annual course of the soil water content. K cycling was improved in the enrichment system compared to the monoculture system, whereas the K supply of the soil was reduced. The reduced xylem production of mogno in the enrichment system compared to the monoculture system was correlated with the low K content of the soil in this system. From these results i was concluded that andiroba is more competitive for sustainable growth on this site than mogno.
650 $aagroforestry
650 $aenvironment
650 $aforest trees
650 $amultiple cropping
650 $atropical rain forests
650 $awoody plants
650 $aAndiroba
650 $aCarapa Guianensis
650 $aCrescimento
650 $aCultivo Multiplo
650 $aFloresta Tropical Úmida
650 $aMeio Ambiente
650 $aMogno
650 $aPlanta Produtora de Madeira
650 $aSwietenia Macrophylla
653 $aAgrofloresta
653 $aAmazonas
653 $aBrasil
653 $aEspecie florestal
653 $aGrowth
653 $aManaus
700 1 $aBAUCH, J.
700 1 $aGASPAROTTO, L.
700 1 $aNEVES, E.
700 1 $aAZEVEDO, C. de
700 1 $aLIMA, R. de
700 1 $aMORAIS, R. de
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Registro original: |
Embrapa Amazônia Ocidental (CPAA) |
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