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Registro Completo |
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Biblioteca(s): |
Embrapa Meio-Norte; Embrapa Semiárido. |
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Data corrente: |
03/03/2020 |
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Data da última atualização: |
08/02/2024 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
FEITOSA, L. H. R.; OLIVEIRA NETO, A. C. de; VOGADO, R. F.; FERNANDES JUNIOR, P. I.; LEITE, L. F. C.; SOUZA, H. A. de. |
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Afiliação: |
LUIS HENRIQUE RODRIGUES FEITOSA, UESPI; ANTONIO CÍCERO DE OLIVEIRA NETO, UESPI; RENATO FALCONERES VOGADO, UFPB; PAULO IVAN FERNANDES JUNIOR, CPATSA; LUIZ FERNANDO CARVALHO LEITE, CPAMN; HENRIQUE ANTUNES DE SOUZA, CPAMN. |
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Título: |
Adubação nitrogenada e Azospirillum brasilense na cultura do milho nas condições edafoclimáticas de Teresina. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
In: JORNADA DE INICIAÇÃO CIENTÍFICA DA EMBRAPA MEIO-NORTE, 3., 2017, Teresina. Anais... Teresina: Embrapa Meio-Norte, 2017. |
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Páginas: |
p. 20. |
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Idioma: |
Português |
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Conteúdo: |
A produção de grãos, principalmente do milho, na agricultura de larga escala está pautada no uso de insumos para a obtenção de produtividades compensatórias. Na agricultura familiar, o baixo uso de insumos compromete as produções por possíveis deficiências nutricionais, assim, a adubação nitrogenada para essa cultura requer manejo adequado, pois o nitrogênio é o nutriente mais exportado pelos grãos de milho da lavoura. |
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Palavras-Chave: |
FBN. |
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Thesagro: |
Agricultura Familiar; Inoculante; Zea Mays. |
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Thesaurus Nal: |
Azospirillum brasilense. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/211413/1/Terceira-Jornada-Cientifica-00020.pdf
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Marc: |
LEADER 01253nam a2200241 a 4500
001 2140136
005 2024-02-08
008 2017 bl uuuu u00u1 u #d
100 1 $aFEITOSA, L. H. R.
245 $aAdubação nitrogenada e Azospirillum brasilense na cultura do milho nas condições edafoclimáticas de Teresina.$h[electronic resource]
260 $aIn: JORNADA DE INICIAÇÃO CIENTÍFICA DA EMBRAPA MEIO-NORTE, 3., 2017, Teresina. Anais... Teresina: Embrapa Meio-Norte$c2017
300 $ap. 20.
520 $aA produção de grãos, principalmente do milho, na agricultura de larga escala está pautada no uso de insumos para a obtenção de produtividades compensatórias. Na agricultura familiar, o baixo uso de insumos compromete as produções por possíveis deficiências nutricionais, assim, a adubação nitrogenada para essa cultura requer manejo adequado, pois o nitrogênio é o nutriente mais exportado pelos grãos de milho da lavoura.
650 $aAzospirillum brasilense
650 $aAgricultura Familiar
650 $aInoculante
650 $aZea Mays
653 $aFBN
700 1 $aOLIVEIRA NETO, A. C. de
700 1 $aVOGADO, R. F.
700 1 $aFERNANDES JUNIOR, P. I.
700 1 $aLEITE, L. F. C.
700 1 $aSOUZA, H. A. de
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Registro original: |
Embrapa Semiárido (CPATSA) |
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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
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
19/05/2015 |
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Data da última atualização: |
31/05/2022 |
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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: |
ARRUDA, C. C. B.; SILVA, M. B.; SEBBENN, A. M.; KANASHIRO, M.; LEMES, M. R.; GRIBEL, R. |
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Afiliação: |
C. C. B. Arruda, UFPA; M. B. Silva, UFPA; A. M. Sebbenn, INSTITUTO FLORESTAL DE SÃO PAULO; MILTON KANASHIRO, CPATU; M. R. Lemes, INPA / Instituto de Pesquisas Jardim Botânico do Rio de Janeiro; R. Gribel, INPA / Instituto de Pesquisas Jardim Botânico do Rio de Janeiro. |
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Título: |
Mating system and genetic diversity of progenies before and after logging: a case study of Bagassa guianensis (Moraceae), a low-density dioecious tree of the Amazonian forest. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Tree Genetics & Genomes, v. 11, n. 1, Feb. 2015. |
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DOI: |
10.1007/s11295-015-0837-2 |
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Idioma: |
Inglês |
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Conteúdo: |
The logging of large trees in tropical forests causes a decrease in the density of reproductive individuals, which likely affects the pattern of pollen dispersal and the mating system of the remaining trees in the population. Here, we investigate the impact of logging on mating system and genetic diversity of the low-density, thrip-pollinated, dioecious tree Bagassa guianensis within a 500-ha plot at Tapajos National Forest, Para State, Brazil. Mating system parameters of the logged population were estimated using mixed-mating model. Six microsatellite loci were used to genotype 232 seeds from ten remnant female trees over three seasons (2006, 2007, and 2008). The data were compared with the mating system of the unlogged population of B. guianensis (18 female trees, 488 seeds) in the same plot. The overall number of alleles found in the open-pollinated progenies decreased after logging (K-71 before logging and K-57 after logging, considering the three after logging seasons pooled), as well as the average number of alleles per locus (A - 11.8 and 9.5, respectively). Similarly, the number of private alleles, which is defined in the context of this study as the number of alleles observed in the population exclusively before or after logging, also decreased after logging (15 and 1, respectively). However, the average number of alleles per locus and the observed and expected heterozygosities were not significantly higher before logging than after logging. Logging also did not affect the inbreeding of progenies in the population. Somewhat unexpectedly, the effective number of pollen donors was consistently higher after (N-ep = 14.5 in 2006, 8.1 in 2007, and 6.3 in 2008) than before logging (N-ep = 3.4), suggesting that the loss of alleles in the population was compensated by the higher heterogeneity in the pollen pool after the removal of the largest trees by logging. Potential causes explaining the patterns found here include the maintenance of large patches of forest around the logged plot and the species' ability to perform long-distance pollination by airborne thrips. Maintenance of landscape integrity as logged and unlogged forests around the exploited areas is recommended to enhance pollen migration and to avoid long-term losses in genetic diversity. MenosThe logging of large trees in tropical forests causes a decrease in the density of reproductive individuals, which likely affects the pattern of pollen dispersal and the mating system of the remaining trees in the population. Here, we investigate the impact of logging on mating system and genetic diversity of the low-density, thrip-pollinated, dioecious tree Bagassa guianensis within a 500-ha plot at Tapajos National Forest, Para State, Brazil. Mating system parameters of the logged population were estimated using mixed-mating model. Six microsatellite loci were used to genotype 232 seeds from ten remnant female trees over three seasons (2006, 2007, and 2008). The data were compared with the mating system of the unlogged population of B. guianensis (18 female trees, 488 seeds) in the same plot. The overall number of alleles found in the open-pollinated progenies decreased after logging (K-71 before logging and K-57 after logging, considering the three after logging seasons pooled), as well as the average number of alleles per locus (A - 11.8 and 9.5, respectively). Similarly, the number of private alleles, which is defined in the context of this study as the number of alleles observed in the population exclusively before or after logging, also decreased after logging (15 and 1, respectively). However, the average number of alleles per locus and the observed and expected heterozygosities were not significantly higher before logging than after logging. Logging also did not aff... Mostrar Tudo |
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Palavras-Chave: |
Amazonian timber species; Diversidade genética; Microsatellite markers; Reducedimpact logging; Tapajós National Forest. |
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Thesagro: |
Madeira; Tatajuba. |
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Thesaurus NAL: |
Amazonia; forest management. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 03261naa a2200301 a 4500
001 2015674
005 2022-05-31
008 2015 bl uuuu u00u1 u #d
024 7 $a10.1007/s11295-015-0837-2$2DOI
100 1 $aARRUDA, C. C. B.
245 $aMating system and genetic diversity of progenies before and after logging$ba case study of Bagassa guianensis (Moraceae), a low-density dioecious tree of the Amazonian forest.$h[electronic resource]
260 $c2015
520 $aThe logging of large trees in tropical forests causes a decrease in the density of reproductive individuals, which likely affects the pattern of pollen dispersal and the mating system of the remaining trees in the population. Here, we investigate the impact of logging on mating system and genetic diversity of the low-density, thrip-pollinated, dioecious tree Bagassa guianensis within a 500-ha plot at Tapajos National Forest, Para State, Brazil. Mating system parameters of the logged population were estimated using mixed-mating model. Six microsatellite loci were used to genotype 232 seeds from ten remnant female trees over three seasons (2006, 2007, and 2008). The data were compared with the mating system of the unlogged population of B. guianensis (18 female trees, 488 seeds) in the same plot. The overall number of alleles found in the open-pollinated progenies decreased after logging (K-71 before logging and K-57 after logging, considering the three after logging seasons pooled), as well as the average number of alleles per locus (A - 11.8 and 9.5, respectively). Similarly, the number of private alleles, which is defined in the context of this study as the number of alleles observed in the population exclusively before or after logging, also decreased after logging (15 and 1, respectively). However, the average number of alleles per locus and the observed and expected heterozygosities were not significantly higher before logging than after logging. Logging also did not affect the inbreeding of progenies in the population. Somewhat unexpectedly, the effective number of pollen donors was consistently higher after (N-ep = 14.5 in 2006, 8.1 in 2007, and 6.3 in 2008) than before logging (N-ep = 3.4), suggesting that the loss of alleles in the population was compensated by the higher heterogeneity in the pollen pool after the removal of the largest trees by logging. Potential causes explaining the patterns found here include the maintenance of large patches of forest around the logged plot and the species' ability to perform long-distance pollination by airborne thrips. Maintenance of landscape integrity as logged and unlogged forests around the exploited areas is recommended to enhance pollen migration and to avoid long-term losses in genetic diversity.
650 $aAmazonia
650 $aforest management
650 $aMadeira
650 $aTatajuba
653 $aAmazonian timber species
653 $aDiversidade genética
653 $aMicrosatellite markers
653 $aReducedimpact logging
653 $aTapajós National Forest
700 1 $aSILVA, M. B.
700 1 $aSEBBENN, A. M.
700 1 $aKANASHIRO, M.
700 1 $aLEMES, M. R.
700 1 $aGRIBEL, R.
773 $tTree Genetics & Genomes$gv. 11, n. 1, Feb. 2015.
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