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Registro Completo |
Biblioteca(s): |
Embrapa Hortaliças. |
Data corrente: |
01/03/2000 |
Data da última atualização: |
01/03/2000 |
Autoria: |
AVILA, A. C. de. |
Afiliação: |
EMBRAPA-CNPH, Brasilia, DF. |
Título: |
Viroses de cucurbitaceas. |
Ano de publicação: |
1982 |
Fonte/Imprenta: |
Informe Agropecuario, Belo Horizonte, v.8, n.85, p.52-54, jan. 1982. |
Idioma: |
Português |
Palavras-Chave: |
CMV; Cucurbitacea; Diabrotica bivittula; Diseases; Pumpkin; SqMV; Transmissao; Transmission; Turnip; Watermelon; WVN. |
Thesagro: |
Abóbora; Aphis Gossypii; Citrullus Lanatus; Controle Químico; Cucumis Sativus; Cucúrbita Moschata; Diabrotica Speciosa; Doença; Melancia; Myzus Persicae; Pepino; Pulgão; Vírus. |
Thesaurus Nal: |
Aphis fabae; chemical control. |
Categoria do assunto: |
-- |
Marc: |
LEADER 01024naa a2200421 a 4500 001 1767113 005 2000-03-01 008 1982 bl uuuu u00u1 u #d 100 1 $aAVILA, A. C. de 245 $aViroses de cucurbitaceas. 260 $c1982 650 $aAphis fabae 650 $achemical control 650 $aAbóbora 650 $aAphis Gossypii 650 $aCitrullus Lanatus 650 $aControle Químico 650 $aCucumis Sativus 650 $aCucúrbita Moschata 650 $aDiabrotica Speciosa 650 $aDoença 650 $aMelancia 650 $aMyzus Persicae 650 $aPepino 650 $aPulgão 650 $aVírus 653 $aCMV 653 $aCucurbitacea 653 $aDiabrotica bivittula 653 $aDiseases 653 $aPumpkin 653 $aSqMV 653 $aTransmissao 653 $aTransmission 653 $aTurnip 653 $aWatermelon 653 $aWVN 773 $tInforme Agropecuario, Belo Horizonte$gv.8, n.85, p.52-54, jan. 1982.
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Registro original: |
Embrapa Hortaliças (CNPH) |
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Registro Completo
Biblioteca(s): |
Embrapa Amazônia Oriental. |
Data corrente: |
13/11/2013 |
Data da última atualização: |
04/07/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
SILVA, E. A. S. da; LÔBO, L. T.; SILVA, G. A. da; SOUZA FILHO, A. P. da S.; SILVA, M. N. da; ARRUDA, A. C.; GUILHON, G. M. S. P.; SANTOS, L. S.; ARRUDA, M. S. P. |
Afiliação: |
EWERTON A. S. DA SILVA, PÓS-GRADUANDA UFPA; LIVIA T. LÔBO, PÓS-GRADUANDA UFPA; GEILSON A. DA SILVA, PÓS-GRADUANDA UFPA; ANTONIO PEDRO DA SILVA SOUZA FILHO, CPATU; MILTON N. DA SILVA, PÓS-GRADUANDA UFPA; ALBERTO C. ARRUDA, PÓS-GRADUANDA UFPA; GISELLE M. S. P. GUILHON, PÓS-GRADUANDA UFPA; LOURIVALDO S. SANTOS, PÓS-GRADUANDA UFPA; MARA S. P. ARRUDA, PÓS-GRADUANDA UFPA. |
Título: |
Flavonoids from leaves of Derris urucu: assessment of potential effects on seed germination and development of weeds. |
Ano de publicação: |
2013 |
Fonte/Imprenta: |
Anais da Academia Brasileira de Ciências, v. 85, n. 3, p. 881-889, 2013. |
Idioma: |
Inglês |
Conteúdo: |
In some previous studies, we described the isolation of nine compounds from leaves of Derris urucu, a species found widely in the Amazon rainforest, identified as five stilbenes and four dihydroflavonols. In this work, three of these dihydroflavonols [urucuol A (1), urucuol B (2) and isotirumalin (3)] were evaluated to identify their potential as allelochemicals, and we are also reporting the isolation and structural determination of a new flavonoid [5,3′-dihydroxy-4′-methoxy-(7,6:5′′,6′′)-2′′,2′′-dimethylpyranoflavanone (4)]. We investigated the effects of the dihydroflavonols 1-3 on seed germination and radicle and hypocotyl growth of the weed Mimosa pudica, using solutions at 150 mg.L-1. Urucuol B, alone, was the substance with the greatest potential to inhibit seed germination (26%), while isotirumalin showed greater ability to reduce the development of the hypocotyl (25%), but none of the three substances showed the potential to inhibit radicle. When combined in pairs, the substances showed synergism for the development of root and hypocotyl and effects on seed germination that could be attributed to antagonism. When tested separately, the trend has become more intense effects on seed germination, while for the substances tested in pairs, the intensity of the effect was greater on development of weed. |
Palavras-Chave: |
Derris urucu; Germinação de sementes. |
Thesagro: |
Alelopatia; Flavonóide. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/92512/1/0001-3765-aabc-85-03-881.pdf
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Marc: |
LEADER 02218naa a2200265 a 4500 001 1971153 005 2022-07-04 008 2013 bl uuuu u00u1 u #d 100 1 $aSILVA, E. A. S. da 245 $aFlavonoids from leaves of Derris urucu$bassessment of potential effects on seed germination and development of weeds.$h[electronic resource] 260 $c2013 520 $aIn some previous studies, we described the isolation of nine compounds from leaves of Derris urucu, a species found widely in the Amazon rainforest, identified as five stilbenes and four dihydroflavonols. In this work, three of these dihydroflavonols [urucuol A (1), urucuol B (2) and isotirumalin (3)] were evaluated to identify their potential as allelochemicals, and we are also reporting the isolation and structural determination of a new flavonoid [5,3′-dihydroxy-4′-methoxy-(7,6:5′′,6′′)-2′′,2′′-dimethylpyranoflavanone (4)]. We investigated the effects of the dihydroflavonols 1-3 on seed germination and radicle and hypocotyl growth of the weed Mimosa pudica, using solutions at 150 mg.L-1. Urucuol B, alone, was the substance with the greatest potential to inhibit seed germination (26%), while isotirumalin showed greater ability to reduce the development of the hypocotyl (25%), but none of the three substances showed the potential to inhibit radicle. When combined in pairs, the substances showed synergism for the development of root and hypocotyl and effects on seed germination that could be attributed to antagonism. When tested separately, the trend has become more intense effects on seed germination, while for the substances tested in pairs, the intensity of the effect was greater on development of weed. 650 $aAlelopatia 650 $aFlavonóide 653 $aDerris urucu 653 $aGerminação de sementes 700 1 $aLÔBO, L. T. 700 1 $aSILVA, G. A. da 700 1 $aSOUZA FILHO, A. P. da S. 700 1 $aSILVA, M. N. da 700 1 $aARRUDA, A. C. 700 1 $aGUILHON, G. M. S. P. 700 1 $aSANTOS, L. S. 700 1 $aARRUDA, M. S. P. 773 $tAnais da Academia Brasileira de Ciências$gv. 85, n. 3, p. 881-889, 2013.
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