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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. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
07/01/2002 |
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Data da última atualização: |
29/06/2022 |
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Autoria: |
SOUZA FILHO, A. P. S.; ALVES, S. de M. |
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Afiliação: |
ANTONIO PEDRO DA SILVA SOUZA FILHO, CPATU; SERGIO DE MELLO ALVES, CPATU. |
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Título: |
Allelopathic potential of pasture weeds: effects on forage legumes. |
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Ano de publicação: |
2000 |
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Fonte/Imprenta: |
Quarterly Reports on Plant Growth Regulation and Activities of the PGRSA, v. 28, n. 4, p. 146-156, 2000. |
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Idioma: |
Inglês |
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Conteúdo: |
Aqueous extracts from aerial parts and seeds ofthe pasture weeds Desmodium adscendens (desmodio), Sida rhombifolia (guanxuma) and Vemoniapo/yanthes (assapeixe) were prepared in a l 0% concentration to identify the allelopathic potential ofthese plants on forage legumes Leucaena leucocephala (leucaena), Stylosanthes guianensis cv. Mineirao (Mineirao) and Cafopogonium mucunoides (calopogonio), and also to verify if pRãnd ionic concentration of extracts can affect the results of allelopathy bioassays. Each aqueous extract was analyzed for pH, conductivity and osmotic potential. The effects ofthe osmotic potential on the results were determined. The results showedthat pH and ionic concentration had no affect. Allelopathic potential activity had variation in function ofthe donor and recipient species specificity and also in function ofthe organs ofthe donor species used in the extract preparation. D. adscendens (desmodio) and S. rhombifolia (guanxuma) were the species that increased reduction ofseeds germination and radic1eelongation, respectively. The aerial organs of donor species were the principal source ofwater-soluble compounds with potential allelopathic effects. L.leucocephala was the forage legume that showed more potential for use in the establishment of a grass-legume pasture of a more stable kind when considering the allelopathic potential ofthe weeds D. adscendens, S. rhombifolia and V. polyanthes. |
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Palavras-Chave: |
Desmodium adscendens; Extrato aquoso; Germinação de semente; Sidarhombifolia; Vemonia polyanthes. |
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Thesagro: |
Alelopatia; Calopogonium Mucunoides; Leucaena Leucocephala; Stylosanthes Guianensis. |
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Thesaurus Nal: |
allelopathy; extracts; germination; seeds. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02311naa a2200289 a 4500
001 1400519
005 2022-06-29
008 2000 bl uuuu u00u1 u #d
100 1 $aSOUZA FILHO, A. P. S.
245 $aAllelopathic potential of pasture weeds$beffects on forage legumes.$h[electronic resource]
260 $c2000
520 $aAqueous extracts from aerial parts and seeds ofthe pasture weeds Desmodium adscendens (desmodio), Sida rhombifolia (guanxuma) and Vemoniapo/yanthes (assapeixe) were prepared in a l 0% concentration to identify the allelopathic potential ofthese plants on forage legumes Leucaena leucocephala (leucaena), Stylosanthes guianensis cv. Mineirao (Mineirao) and Cafopogonium mucunoides (calopogonio), and also to verify if pRãnd ionic concentration of extracts can affect the results of allelopathy bioassays. Each aqueous extract was analyzed for pH, conductivity and osmotic potential. The effects ofthe osmotic potential on the results were determined. The results showedthat pH and ionic concentration had no affect. Allelopathic potential activity had variation in function ofthe donor and recipient species specificity and also in function ofthe organs ofthe donor species used in the extract preparation. D. adscendens (desmodio) and S. rhombifolia (guanxuma) were the species that increased reduction ofseeds germination and radic1eelongation, respectively. The aerial organs of donor species were the principal source ofwater-soluble compounds with potential allelopathic effects. L.leucocephala was the forage legume that showed more potential for use in the establishment of a grass-legume pasture of a more stable kind when considering the allelopathic potential ofthe weeds D. adscendens, S. rhombifolia and V. polyanthes.
650 $aallelopathy
650 $aextracts
650 $agermination
650 $aseeds
650 $aAlelopatia
650 $aCalopogonium Mucunoides
650 $aLeucaena Leucocephala
650 $aStylosanthes Guianensis
653 $aDesmodium adscendens
653 $aExtrato aquoso
653 $aGerminação de semente
653 $aSidarhombifolia
653 $aVemonia polyanthes
700 1 $aALVES, S. de M.
773 $tQuarterly Reports on Plant Growth Regulation and Activities of the PGRSA$gv. 28, n. 4, p. 146-156, 2000.
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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Registro |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Leite. Para informações adicionais entre em contato com cnpgl.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
16/04/2010 |
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Data da última atualização: |
16/04/2010 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
PERES, E. R.; AVILA, M. R. DE; COUTO, C. R. DO; MITTELMANN, A. |
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Afiliação: |
EDER RODRIGUES PERES; MARIANE ROCKEMBACH DE AVILA, CNPQ; CAROLINE RITA DO COUTO, FAPERGS; ANDREA MITTELMANN, CNPGL. |
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Título: |
Produção de forragem de capim lanudo na região da campanha do RS. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
In: JORNADA DE PÓS-GRADUAÇÃO E PESQUISA, 7., 2009, Bagé. Anais... Bagé: Embrapa CPPSUL, 2009. |
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Idioma: |
Português |
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Thesagro: |
Capim Lanudo. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 00496naa a2200157 a 4500
001 1696752
005 2010-04-16
008 2009 bl --- 0-- u #d
100 1 $aPERES, E. R.
245 $aProdução de forragem de capim lanudo na região da campanha do RS.
260 $c2009
650 $aCapim Lanudo
700 1 $aAVILA, M. R. DE
700 1 $aCOUTO, C. R. DO
700 1 $aMITTELMANN, A.
773 $tIn: JORNADA DE PÓS-GRADUAÇÃO E PESQUISA, 7., 2009, Bagé. Anais... Bagé: Embrapa CPPSUL, 2009.
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Embrapa Gado de Leite (CNPGL) |
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