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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pecuária Sul. Para informações adicionais entre em contato com cppsul.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sul. |
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Data corrente: |
28/06/2021 |
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Data da última atualização: |
28/06/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PIVETA, L. B.; NOLDIN, J. A.; ROMA-BURGOS, N.; VIANA, V. E.; BENEDETTI, L.; PINTO, J. J. O.; LAMEGO, F. P.; AVILA, L. A. de. |
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Afiliação: |
LEONARD BONILLA PIVETA, UFPEL; JOSÉ ALBERTO NOLDIN, EPAGRI; NILDA ROMA-BURGOS, University of Arkansas; VÍVIAN EBELING VIANA, UFPEL; LARIZA BENEDETTI, UFPEL; JESUS JUARES OLIVEIRA PINTO, UFPEL; FABIANE PINTO LAMEGO, CPPSUL; LUIS ANTONIO DE AVILA, UFPEL. |
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Título: |
Weedy rice (Oryza spp.) diversity in southern Brazil. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Weed Science, 22 Mar. 2021. |
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Idioma: |
Inglês |
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Notas: |
Special issue. First view. |
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Conteúdo: |
Weedy rice (Oryza spp.) is one of the most troublesome weeds affecting rice (Oryza sativa L.) production in many countries. Weedy rice control is difficult in rice fields, because the weed and crop are phenotypically and morphologically similar. Weedy rice can be a source of genetic diversity for cultivated rice. Thus, this study aimed to characterize the morphological diversity of weedy rice in southern Brazil. Qualitative and quantitative traits of 249 accessions from eight rice-growing mesoregions in Rio Grande do Sul (RS) and Santa Catarina (SC) states were analyzed. For each accession, 24 morphological descriptors (14 qualitative and 10 quantitative) were evaluated. All 249 accessions from RS and SC are of indica lineage. Considering all the phenotypic traits evaluated, the accessions separated into 14 distinct groups. One of the largest groups consisted of plants that were predominantly tall with green leaves, intermediate shattering, and variable flowering time. Distinct subgroups exist within larger clusters, showing discernible phenotypic diversity within the main clusters. The variability in flowering time was high (77 to 110 d after emergence), indicating high potential for flowering synchrony with rice cultivars and, consequently, gene flow. This indicates the need to remove escapes when planting herbicide-resistant rice. Thus, weedy rice populations in southern Brazil are highly diverse, and this diversity could result in variable response to weed management. |
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Thesagro: |
Arroz; Arroz Vermelho; Erva Daninha; Manejo. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02186naa a2200265 a 4500
001 2132604
005 2021-06-28
008 2021 bl uuuu u00u1 u #d
100 1 $aPIVETA, L. B.
245 $aWeedy rice (Oryza spp.) diversity in southern Brazil.$h[electronic resource]
260 $c2021
500 $aSpecial issue. First view.
520 $aWeedy rice (Oryza spp.) is one of the most troublesome weeds affecting rice (Oryza sativa L.) production in many countries. Weedy rice control is difficult in rice fields, because the weed and crop are phenotypically and morphologically similar. Weedy rice can be a source of genetic diversity for cultivated rice. Thus, this study aimed to characterize the morphological diversity of weedy rice in southern Brazil. Qualitative and quantitative traits of 249 accessions from eight rice-growing mesoregions in Rio Grande do Sul (RS) and Santa Catarina (SC) states were analyzed. For each accession, 24 morphological descriptors (14 qualitative and 10 quantitative) were evaluated. All 249 accessions from RS and SC are of indica lineage. Considering all the phenotypic traits evaluated, the accessions separated into 14 distinct groups. One of the largest groups consisted of plants that were predominantly tall with green leaves, intermediate shattering, and variable flowering time. Distinct subgroups exist within larger clusters, showing discernible phenotypic diversity within the main clusters. The variability in flowering time was high (77 to 110 d after emergence), indicating high potential for flowering synchrony with rice cultivars and, consequently, gene flow. This indicates the need to remove escapes when planting herbicide-resistant rice. Thus, weedy rice populations in southern Brazil are highly diverse, and this diversity could result in variable response to weed management.
650 $aArroz
650 $aArroz Vermelho
650 $aErva Daninha
650 $aManejo
700 1 $aNOLDIN, J. A.
700 1 $aROMA-BURGOS, N.
700 1 $aVIANA, V. E.
700 1 $aBENEDETTI, L.
700 1 $aPINTO, J. J. O.
700 1 $aLAMEGO, F. P.
700 1 $aAVILA, L. A. de
773 $tWeed Science, 22 Mar. 2021.
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Embrapa Pecuária Sul (CPPSUL) |
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| 4. |  | SAMANIEGO, R. D.; CAVALCANTE, R. V.; NOCITI, D. L. P.; PETZOLD, H. V.; ESNARRIAGA, E. S.; ARAÚJO JR. J. P.; NOGUEIRA, M. F. Equine infectious anemia diagnosis by Pcr, Elisa and Agid in urban equids from Corumbá and Ladário, MS, Brazil. In: BRAZILIAN CONGRESS OF VIROLOGY, 24.; MERCOSUR MEETING OF VIROLOGY, 8., 2013. Porto Seguro: SBV, 2013. p.231. Journal of the Brazilian Society for Virology, v. 18, suppl. 1, 2013.| Tipo: Resumo em Anais de Congresso |
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| 5. | | MALOSSI, C. D.; CAVALCANTE, R. V.; ULLMANN, L. S.; NOGUEIRA, M. F.; AGUIAR, D. M.; KROON, E. G.; ARAUJO JR. J. P. Identification of a novel equine infectious anemia virus strain by massive sequencing in an endemic zone in Pantanal, Brazil. Journal of the Brazilian Society for Virology, v. 19, p.259-260, 2014. Supplement 2. BRAZILIAN CONGRESS OF VIROLOGY, 25.; MERCOSUR MEETING OF VIROLOGY, 9., 2014, Ribeirão Preto, SP.| Tipo: Resumo em Anais de Congresso |
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| 6. | | NOGUEIRA, M. F.; ARAUJO JUNIOR, J. P.; CAVALCANTE, R. V.; REIS, J. K. P.; OLIVEIRA, J. M.; SANTOS, C. J. S.; PETZOLD, H. V.; FONSECA JUNIOR, A. A.; BARROS, A. T. M. de. Obtenção de potros negativos, oriundos de éguas soropositivos para anemia infecciosa equina, em programas de controle no Pantanal brasileiro. Biológico, São Paulo, v. 77, supl. 3, p. 29, 2015. Encontro Nacional de Defesa Sanitária Animal - Endesa 2015.| Tipo: Resumo em Anais de Congresso |
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