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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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Registro Completo
Biblioteca(s): |
Embrapa Meio-Norte. |
Data corrente: |
04/03/2020 |
Data da última atualização: |
12/12/2023 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
SILVA, J. H. O.; OLIVEIRA, R. de s.; GOMES, M. F. da C.; ARAUJO NETO, R. B. de; LIMA, P. S. da C. |
Afiliação: |
JARBSON HENRIQUE OLIVEIRA SILVA, UFPI; RAIANE DE SOUSA OLIVEIRA, UESPI; MARIA FERNANDA DA COSTA GOMES, UFPE; RAIMUNDO BEZERRA DE ARAUJO NETO, CPAMN; PAULO SARMANHO DA COSTA LIMA, CPAMN. |
Título: |
Similaridade genética entre os acessos de pau-ferro do Banco de Germoplasma da Embrapa Meio-Norte. |
Ano de publicação: |
2017 |
Fonte/Imprenta: |
In: JORNADA DE INICIAÇÃO CIENTÍFICA DA EMBRAPA MEIO-NORTE, 3., 2017, Teresina, PI. Anais da III Jornada Científica da Embrapa Meio-Norte. Teresina: Embrapa Meio-Norte, 2017. |
Páginas: |
p. 78. |
Idioma: |
Português |
Conteúdo: |
Neste estudo, objetivou-se caracterizar e avaliar a diversidade genética entre acessos de pau-ferro do Banco de Germoplasma da Embrapa Meio-Norte a partir de 10 primers ISSR selecionados. |
Palavras-Chave: |
Average; Diversidade genética; ISSR. |
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/211489/1/Terceira-Jornada-Cientifica-00078.pdf
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Marc: |
LEADER 00939nam a2200205 a 4500 001 2120905 005 2023-12-12 008 2017 bl uuuu u00u1 u #d 100 1 $aSILVA, J. H. O. 245 $aSimilaridade genética entre os acessos de pau-ferro do Banco de Germoplasma da Embrapa Meio-Norte.$h[electronic resource] 260 $aIn: JORNADA DE INICIAÇÃO CIENTÍFICA DA EMBRAPA MEIO-NORTE, 3., 2017, Teresina, PI. Anais da III Jornada Científica da Embrapa Meio-Norte. Teresina: Embrapa Meio-Norte$c2017 300 $ap. 78. 520 $aNeste estudo, objetivou-se caracterizar e avaliar a diversidade genética entre acessos de pau-ferro do Banco de Germoplasma da Embrapa Meio-Norte a partir de 10 primers ISSR selecionados. 653 $aAverage 653 $aDiversidade genética 653 $aISSR 700 1 $aOLIVEIRA, R. de s. 700 1 $aGOMES, M. F. da C. 700 1 $aARAUJO NETO, R. B. de 700 1 $aLIMA, P. S. da C.
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