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| 105. |  | SILVA, J. A. A.; SANTOS, M. A. dos; KARAM, D. Monitoramento espaço-temporal de gramíneas exóticas num remanescente de cerradão, Sete Lagoas, MG. In: CONGRESSO DE ECOLOGIA DO BRASIL, 10.; SIMPÓSIO DE SUSTENTABILIDADE, 1., 2011, São Lourenço. Sustentabilidade: anais. São Paulo: Sociedade de Ecologia do Brasil, 2011. 1 CD-ROM.| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 111. | | KARAM, D.; CRUZ, M. B. da; RIZZARDI, M. A. Manejo de plantas daninhas na cultura do milho. In: CONGRESSO NACIONAL DE MILHO E SORGO, 27.; SIMPOSIO BRASILEIRO SOBRE A LAGARTA-DO-CARTUCHO, SPODOPTERA FRUGIPERDA, 3.; WORKSHOP SOBRE MANEJO E ETIOLOGIA DA MANCHA BRANCA DO MILHO, 2008, Londrina. Agroenergia, produção de alimentos e mudanças climáticas: desafios para milho e sorgo: trabalhos e palestras. [Londrina]: IAPAR; [Sete Lagoas]: Embrapa Milho e Sorgo, 2008. 1 CD-ROM. Palestra.| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 119. | | VARGAS, L.; AGOSTINETO, D.; GAZZIERO, D.; KARAM, D. Resistência de plantas daninhas: batalhas perdidas, custos e o desafio do manejo. Revista Plantio Direto, Passo Fundo, v. 21, n. 131, p. 11-20, set./out. 2012.| Biblioteca(s): Embrapa Milho e Sorgo. |
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Registro Completo
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
04/09/2018 |
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Data da última atualização: |
30/11/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
VARGAS, L. A.; PASSOS, A. M. A. dos; KARAM, D. |
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Afiliação: |
Universidade Federal de Rondônia; ALEXANDRE MARTINS ABDAO DOS PASSOS, CNPMS; DECIO KARAM, CNPMS. |
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Título: |
Allelopathic potential of cover crops in control of shrubby false buttonweed (Spermacoce verticillata). |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Planta Daninha, Viçosa, MG, v. 36, article e018173359, 2018. |
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DOI: |
10.1590/S0100-83582018360100052 |
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Idioma: |
Inglês |
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Conteúdo: |
Searching for alternatives to deal with weeds without the exclusive use of herbicides can increase the sustainability of agricultural production in the Amazon region. This study aimed to evaluate the allelopathic potential of cover crops on the weed shrubby false buttonweed (Spermacoce verticillata L.). Three straw levels (1; 2.5 and 5 mg cm-2) of thirteen cover crops (Cajanus cajan, Canavalia ensiformis, Crotalaria juncea, C. ochroleuca, C. spectabilis, Mucuna aterrima, M. cinereum, Pennisetum glaucum, Sorghum bicolor, S. sudanense, Urochloa brizanha cv. Xaraés, U. brizantha cv. Piatã and U. ruziziensis) were assessed on germination and initial growth of weed and lettuce. We carried out two experiments (weed and lettuce) in a factorial scheme (cover crops x straw levels) with additional treatment (control without straw) in a completely randomized experimental design, with four replicates. The straw of the cover crops inhibited the germination and initial growth of the target plants. The highest straw levels promoted 44.0 and 78.8% reductions in radicle length in relation to the lowest dose (1 mg cm-2), for lettuce and Spermacoce verticillata, respectively. The highest sensitivity to allelochemicals occurred on the radicle. The major suppressive effects on weed germination were promoted by Cajanus cajan, Urochloa brizanha cv. Xaraés, Mucuna cinereum, M. aterrima, Canavalia ensiformis, Crotalaria juncea, C. spectabilis and U. ruziziensis. Cover crops use is an integrated practice management to control Spermacoce verticillata under no-tillage system. MenosSearching for alternatives to deal with weeds without the exclusive use of herbicides can increase the sustainability of agricultural production in the Amazon region. This study aimed to evaluate the allelopathic potential of cover crops on the weed shrubby false buttonweed (Spermacoce verticillata L.). Three straw levels (1; 2.5 and 5 mg cm-2) of thirteen cover crops (Cajanus cajan, Canavalia ensiformis, Crotalaria juncea, C. ochroleuca, C. spectabilis, Mucuna aterrima, M. cinereum, Pennisetum glaucum, Sorghum bicolor, S. sudanense, Urochloa brizanha cv. Xaraés, U. brizantha cv. Piatã and U. ruziziensis) were assessed on germination and initial growth of weed and lettuce. We carried out two experiments (weed and lettuce) in a factorial scheme (cover crops x straw levels) with additional treatment (control without straw) in a completely randomized experimental design, with four replicates. The straw of the cover crops inhibited the germination and initial growth of the target plants. The highest straw levels promoted 44.0 and 78.8% reductions in radicle length in relation to the lowest dose (1 mg cm-2), for lettuce and Spermacoce verticillata, respectively. The highest sensitivity to allelochemicals occurred on the radicle. The major suppressive effects on weed germination were promoted by Cajanus cajan, Urochloa brizanha cv. Xaraés, Mucuna cinereum, M. aterrima, Canavalia ensiformis, Crotalaria juncea, C. spectabilis and U. ruziziensis. Cover crops use is an integrated prac... Mostrar Tudo |
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Palavras-Chave: |
Método sanduíche. |
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Thesagro: |
Alelopatia; Erva Daninha; Leguminosa; Palha; Planta de Cobertura; Vassourinha. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/182425/1/Allelopathic-potential.pdf
|
|
Marc: |
LEADER 02308naa a2200241 a 4500
001 2095052
005 2018-11-30
008 2018 bl uuuu u00u1 u #d
024 7 $a10.1590/S0100-83582018360100052$2DOI
100 1 $aVARGAS, L. A.
245 $aAllelopathic potential of cover crops in control of shrubby false buttonweed (Spermacoce verticillata).$h[electronic resource]
260 $c2018
520 $aSearching for alternatives to deal with weeds without the exclusive use of herbicides can increase the sustainability of agricultural production in the Amazon region. This study aimed to evaluate the allelopathic potential of cover crops on the weed shrubby false buttonweed (Spermacoce verticillata L.). Three straw levels (1; 2.5 and 5 mg cm-2) of thirteen cover crops (Cajanus cajan, Canavalia ensiformis, Crotalaria juncea, C. ochroleuca, C. spectabilis, Mucuna aterrima, M. cinereum, Pennisetum glaucum, Sorghum bicolor, S. sudanense, Urochloa brizanha cv. Xaraés, U. brizantha cv. Piatã and U. ruziziensis) were assessed on germination and initial growth of weed and lettuce. We carried out two experiments (weed and lettuce) in a factorial scheme (cover crops x straw levels) with additional treatment (control without straw) in a completely randomized experimental design, with four replicates. The straw of the cover crops inhibited the germination and initial growth of the target plants. The highest straw levels promoted 44.0 and 78.8% reductions in radicle length in relation to the lowest dose (1 mg cm-2), for lettuce and Spermacoce verticillata, respectively. The highest sensitivity to allelochemicals occurred on the radicle. The major suppressive effects on weed germination were promoted by Cajanus cajan, Urochloa brizanha cv. Xaraés, Mucuna cinereum, M. aterrima, Canavalia ensiformis, Crotalaria juncea, C. spectabilis and U. ruziziensis. Cover crops use is an integrated practice management to control Spermacoce verticillata under no-tillage system.
650 $aAlelopatia
650 $aErva Daninha
650 $aLeguminosa
650 $aPalha
650 $aPlanta de Cobertura
650 $aVassourinha
653 $aMétodo sanduíche
700 1 $aPASSOS, A. M. A. dos
700 1 $aKARAM, D.
773 $tPlanta Daninha, Viçosa, MG$gv. 36, article e018173359, 2018.
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