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Registro Completo |
Biblioteca(s): |
Embrapa Agrobiologia. |
Data corrente: |
13/11/2019 |
Data da última atualização: |
26/11/2019 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
SIMOES, W. L.; OLIVEIRA, A. R. de; SOUZA, M. A. de; REIS, V. M.; FERNANDES JUNIOR, P. I. |
Afiliação: |
VERONICA MASSENA REIS, CNPAB. |
Título: |
Efficient inoculation of diazotrophic bacteria into sugarcane by the drip irrigation system. |
Ano de publicação: |
2019 |
Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira v. 54, e01110, jan./dez. 2019. |
DOI: |
10.1590/S1678-3921.pab2019.v54.01110 |
Idioma: |
Português |
Notas: |
Título em Português: Inoculação eficiente de bactérias diazotróficas via sistema de irrigação por gotejamento em cana-de-açúcar. |
Conteúdo: |
The objective of this work was to assess the efficiency of the inoculation of a diazotrophic bacterial consortium by the drip irrigation system into sugarcane (Saccharum spp.), in the Brazilian semiarid region. The evaluated treatments were: standard inoculation by submersion; one or two inoculations by drip irrigation; nitrogen (urea) applied by fertigation; and negative controls, without inoculation or nitrogen fertilization. Leaf gas exchanges and plant growth and yield were assessed. Inoculation by irrigation is efficient for all variables, and double inoculation by the drip irrigation system stands out, increasing stem yield in 16% when compared with the negative control, without differing from the treatment with nitrogen fertilizer. |
Palavras-Chave: |
Bactérias diazotróficas; Bactérias promotoras do crescimento de plantas; Fixação biológica de nitrogênio; Semiárido. |
Thesagro: |
Bactéria; Cana de Açúcar; Inoculante; Irrigação. |
Thesaurus Nal: |
Saccharum; sugarcane. |
Categoria do assunto: |
S Ciências Biológicas |
Marc: |
LEADER 01851naa a2200313 a 4500 001 2114289 005 2019-11-26 008 2019 bl --- 0-- u #d 024 7 $a10.1590/S1678-3921.pab2019.v54.01110$2DOI 100 1 $aSIMOES, W. L. 245 $aEfficient inoculation of diazotrophic bacteria into sugarcane by the drip irrigation system.$h[electronic resource] 260 $c2019 500 $aTítulo em Português: Inoculação eficiente de bactérias diazotróficas via sistema de irrigação por gotejamento em cana-de-açúcar. 520 $aThe objective of this work was to assess the efficiency of the inoculation of a diazotrophic bacterial consortium by the drip irrigation system into sugarcane (Saccharum spp.), in the Brazilian semiarid region. The evaluated treatments were: standard inoculation by submersion; one or two inoculations by drip irrigation; nitrogen (urea) applied by fertigation; and negative controls, without inoculation or nitrogen fertilization. Leaf gas exchanges and plant growth and yield were assessed. Inoculation by irrigation is efficient for all variables, and double inoculation by the drip irrigation system stands out, increasing stem yield in 16% when compared with the negative control, without differing from the treatment with nitrogen fertilizer. 650 $aSaccharum 650 $asugarcane 650 $aBactéria 650 $aCana de Açúcar 650 $aInoculante 650 $aIrrigação 653 $aBactérias diazotróficas 653 $aBactérias promotoras do crescimento de plantas 653 $aFixação biológica de nitrogênio 653 $aSemiárido 700 1 $aOLIVEIRA, A. R. de 700 1 $aSOUZA, M. A. de 700 1 $aREIS, V. M. 700 1 $aFERNANDES JUNIOR, P. I. 773 $tPesquisa Agropecuária Brasileira$gv. 54, e01110, jan./dez. 2019.
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Embrapa Agrobiologia (CNPAB) |
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Registro Completo
Biblioteca(s): |
Embrapa Trigo. |
Data corrente: |
13/02/2023 |
Data da última atualização: |
24/03/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
CARMO, D. G. do; COSTA, T. L.; SANTANA JÚNIOR, P. A.; SANTANA, W. C.; MARSARO JUNIOR, A. L.; PEREIRA, P. S.; SANTOS, A. A.; PICANÇO, M. C. |
Afiliação: |
DAIANE G. DO CARMO, Universidade Federal de Viçosa; THIAGO L. COSTA, Universidade Federal de Viçosa; PAULO A. SANTANA JÚNIOR, Universidade Federal de Viçosa; WEYDER C. SANTANA, Universidade Federal de Viçosa; ALBERTO LUIZ MARSARO JUNIOR, CNPT; POLIANA S. PEREIRA, Universidade Federal de Viçosa; ABRAÃO A. SANTOS, University of Florida; MARCELO C. PICANÇO, Universidade Federal de Viçosa. |
Título: |
Efficacy and residual toxicity of insecticides on plutella xylostella and their selectivity to the predator solenopsis saevissima. |
Ano de publicação: |
2023 |
Fonte/Imprenta: |
Insects, v. 14, n. 2, art. 98, 2023. |
Idioma: |
Inglês |
Conteúdo: |
Abstract: We evaluated the efficacy and residual toxicity of nine commercial insecticides on Plutella xylostella and their selectivity to the predator ant Solenopsis saevissima under laboratory and field conditions. First, to test the insecticides? effectiveness and selectivity, we conducted concentrationresponse bioassays on both species and the mortalities were recorded 48 h after exposure. Next, rapeseed plants were sprayed following label rate recommendations in the field. Finally, insecticidetreated leaves were removed from the field up to 20 days after application and both organisms were exposed to them as in the first experiment. Our concentration-response bioassay indicated that seven insecticides caused mortality ?80% of P. xylostella: bifenthrin, chlorfenapyr, chlorantraniliprole, cyantraniliprole, indoxacarb, spinetoram, and spinosad. However, only chlorantraniliprole and cyantraniliprole caused mortality ?30% of S. saevissima. The residual bioassay indicated that four insecticides had a long-lasting effect, causing mortality of 100% to P. xylostella 20 days after application: chlorantraniliprole, cyantraniliprole, spinetoram, and spinosad. For S. saevissima, bifenthrin caused mortality of 100% during the evaluated period. Additionally, mortality rates below 30% occurred four days after the application of spinetoram and spinosad. Thus, chlorantraniliprole and cyantraniliprole are safe options for P. xylostella management since their efficacy favor S. saevissima. |
Palavras-Chave: |
Diamondback moth. |
Thesagro: |
Controle Químico; Inseticida; Toxidez. |
Thesaurus NAL: |
Brassica; Chemical control; Fire ants; Pesticide resistance; Predators. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1151729/1/Efficacy-and-Toxicity.pdf
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Marc: |
LEADER 02407naa a2200313 a 4500 001 2151729 005 2023-03-24 008 2023 bl uuuu u00u1 u #d 100 1 $aCARMO, D. G. do 245 $aEfficacy and residual toxicity of insecticides on plutella xylostella and their selectivity to the predator solenopsis saevissima.$h[electronic resource] 260 $c2023 520 $aAbstract: We evaluated the efficacy and residual toxicity of nine commercial insecticides on Plutella xylostella and their selectivity to the predator ant Solenopsis saevissima under laboratory and field conditions. First, to test the insecticides? effectiveness and selectivity, we conducted concentrationresponse bioassays on both species and the mortalities were recorded 48 h after exposure. Next, rapeseed plants were sprayed following label rate recommendations in the field. Finally, insecticidetreated leaves were removed from the field up to 20 days after application and both organisms were exposed to them as in the first experiment. Our concentration-response bioassay indicated that seven insecticides caused mortality ?80% of P. xylostella: bifenthrin, chlorfenapyr, chlorantraniliprole, cyantraniliprole, indoxacarb, spinetoram, and spinosad. However, only chlorantraniliprole and cyantraniliprole caused mortality ?30% of S. saevissima. The residual bioassay indicated that four insecticides had a long-lasting effect, causing mortality of 100% to P. xylostella 20 days after application: chlorantraniliprole, cyantraniliprole, spinetoram, and spinosad. For S. saevissima, bifenthrin caused mortality of 100% during the evaluated period. Additionally, mortality rates below 30% occurred four days after the application of spinetoram and spinosad. Thus, chlorantraniliprole and cyantraniliprole are safe options for P. xylostella management since their efficacy favor S. saevissima. 650 $aBrassica 650 $aChemical control 650 $aFire ants 650 $aPesticide resistance 650 $aPredators 650 $aControle Químico 650 $aInseticida 650 $aToxidez 653 $aDiamondback moth 700 1 $aCOSTA, T. L. 700 1 $aSANTANA JÚNIOR, P. A. 700 1 $aSANTANA, W. C. 700 1 $aMARSARO JUNIOR, A. L. 700 1 $aPEREIRA, P. S. 700 1 $aSANTOS, A. A. 700 1 $aPICANÇO, M. C. 773 $tInsects$gv. 14, n. 2, art. 98, 2023.
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