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Registro Completo |
Biblioteca(s): |
Embrapa Milho e Sorgo. |
Data corrente: |
04/09/2018 |
Data da última atualização: |
30/11/2018 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
VARGAS, L. A.; PASSOS, A. M. A. dos; KARAM, D. |
Afiliação: |
Universidade Federal de Rondônia; ALEXANDRE MARTINS ABDAO DOS PASSOS, CNPMS; DECIO KARAM, CNPMS. |
Título: |
Allelopathic potential of cover crops in control of shrubby false buttonweed (Spermacoce verticillata). |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
Planta Daninha, Viçosa, MG, v. 36, article e018173359, 2018. |
DOI: |
10.1590/S0100-83582018360100052 |
Idioma: |
Inglês |
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 |
Palavras-Chave: |
Método sanduíche. |
Thesagro: |
Alelopatia; Erva Daninha; Leguminosa; Palha; Planta de Cobertura; Vassourinha. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/182425/1/Allelopathic-potential.pdf
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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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Embrapa Milho e Sorgo (CNPMS) |
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Registros recuperados : 7 | |
3. | | FEITOSA, I. de L.; AKER, A. M.; VARGAS, L. A. de; CIPRIANI, H. N.; MARCOLAN, A. L.; PASSOS, A. M. A. dos. Crescimento de milho com diferentes arranjos espaciais em sistema ILPF na Amazônia Ocidental. In: CONGRESSO NACIONAL DE MILHO E SORGO, 31., 2016, Bento Gonçalves Milho e sorgo: inovações, mercados e segurança alimentar: anais. Sete Lagoas: Associação Brasileira de Milho e Sorgo, 2016. p. 998-1000.Tipo: Artigo em Anais de Congresso |
Biblioteca(s): Embrapa Milho e Sorgo. |
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4. | | AKER, A. M.; PASSOS, A. M. A. dos; MARCOLAN, A. L.; SANTOS, F. C. dos; CIPRIANI, H. N.; VARGAS, L. A. de. Plantas de cobertura sobre atributos agronômicos do milho na região sudoeste da Amazônia. Revista Brasileira de Milho e Sorgo, Sete Lagoas, v. 15, n. 3, p. 531-542, 2016.Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 2 |
Biblioteca(s): Embrapa Milho e Sorgo; Embrapa Rondônia. |
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7. | | PASSOS, A. M. A. dos; COSTA, R. S. C. da; AKER, A. M.; RIBEIRO, R. da S.; VARGAS, L. A. de; SANTOS, F. C. dos; ALVARENGA, R. C.; MARCOLAN, A. L. Plantas de cobertura promovem incrementos na cultura do milho na região sudoeste da Amazônia. Sete Lagoas: Embrapa Milho e Sorgo, 2017. 10 p. (Embrapa Milho e Sorgo. Comunicado Técnico, 225).Tipo: Comunicado Técnico/Recomendações Técnicas |
Biblioteca(s): Embrapa Milho e Sorgo; Embrapa Rondônia. |
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Registros recuperados : 7 | |
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