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Registro Completo |
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
14/11/1995 |
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Data da última atualização: |
30/08/2022 |
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Tipo da produção científica: |
Documentos |
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Autoria: |
MORAES, G. J. de; McMURTRY, J. A. |
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Afiliação: |
GILBERTO JOSE DE MORAES, CPATSA. |
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Título: |
Biology of Amblyseius citrifolius (Denmark and Muma) (Acarina-Phytoseiidae). |
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Ano de publicação: |
1978 |
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Fonte/Imprenta: |
Petrolina: EMBRAPA-CPATSA, 1978. |
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Páginas: |
70 p. |
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Descrição Física: |
il. |
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Idioma: |
Inglês |
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Conteúdo: |
Descrjptions of the morphological changes within each stage, of the molting and hatching processes and of the quiescent states of Amblyseius citrifolius (Denmark & Muma) were given. The larva emerged, posterior first, from the narrow end of the egg. Hatching took ca. 8 mino The duration of the ecdysis (ca. 20 to 30 min) was approximately the same for all the stages. The quiescent states were characterized by the extended, apposed palpi, by the protruded gnathosoma, by the pale, shiny coloration of the body and by a typical response to a contact stimulus. The duration of the quiescent state ranged from ca. 9.7" hr to 11.3 hr. Continuous observations on behavior indicated that more than 80% of the time in the postembryonic stages was spent resting. The number of prey (eggs and larvae) consumed by each individual in the larval, protonymphal, and deutonymphal stages were 6.3, 17.2, and 12.0, respectively. Protonymphs averaged 3.2 minutes feeding on each prey, deutonymphs 4.7 minutes, and larvae 8.0 minutes. -; At a given temperature, different relative humidities did not seem to affect the duration of the egg stage. The eclosion rates of A. citrifolius were shown in relation to saturation deficit at 16, 20, 24, 28, and 32°C. The development from egg to adult was completed in 19.7, 7.7, 5.0, and" 3.6 days at 15, 20, 25, and 30°C, respectively.The egg, larval, protonymphal and deutonymphal stages required 27.3, 10.7, 14.1, and 15.8 degree days, respectively, to be completed. Preoviposition, oviposition, and postoviposition periods and longevity were observed at 15, 20, 25, and 30°C. The fecundity averaged 31.3, 40.9, Moraes & McMurtry 3 49.7, and 41.3 eggs per ferna1e at 15, 20, 25, and 30°C, respective1y. Average dai1y egg production at 15, 20, 25, and 30°C was .75, 1.25, 2.11, and 2.51 eggs, respective1y, per ferna1e. Po11ens of Pyrus kawakarnii, Ma1ephora crocea (Jacq.), and avocado, a cornbination of Tetranychus pacificus McGregor (eggs + 1arvae) p1us~. crocea po11en, and T. pacificus (a11 stages) were the best foods for oviposition and surviva1 of A. citrifo1ius. T. pacificus (eggs + .larvae) a1so was one of the best for survivarship af the predator. MenosDescrjptions of the morphological changes within each stage, of the molting and hatching processes and of the quiescent states of Amblyseius citrifolius (Denmark & Muma) were given. The larva emerged, posterior first, from the narrow end of the egg. Hatching took ca. 8 mino The duration of the ecdysis (ca. 20 to 30 min) was approximately the same for all the stages. The quiescent states were characterized by the extended, apposed palpi, by the protruded gnathosoma, by the pale, shiny coloration of the body and by a typical response to a contact stimulus. The duration of the quiescent state ranged from ca. 9.7" hr to 11.3 hr. Continuous observations on behavior indicated that more than 80% of the time in the postembryonic stages was spent resting. The number of prey (eggs and larvae) consumed by each individual in the larval, protonymphal, and deutonymphal stages were 6.3, 17.2, and 12.0, respectively. Protonymphs averaged 3.2 minutes feeding on each prey, deutonymphs 4.7 minutes, and larvae 8.0 minutes. -; At a given temperature, different relative humidities did not seem to affect the duration of the egg stage. The eclosion rates of A. citrifolius were shown in relation to saturation deficit at 16, 20, 24, 28, and 32°C. The development from egg to adult was completed in 19.7, 7.7, 5.0, and" 3.6 days at 15, 20, 25, and 30°C, respectively.The egg, larval, protonymphal and deutonymphal stages required 27.3, 10.7, 14.1, and 15.8 degree days, respectively, to be completed. Preov... Mostrar Tudo |
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Palavras-Chave: |
Acaro predador; Amblyseius citrifolius. |
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Thesagro: |
Biologia; Controle Biológico; Inseto. |
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Thesaurus Nal: |
Amblyseius; Insect biology. |
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Categoria do assunto: |
O Insetos e Entomologia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/186811/1/Moraes1978.pdf
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Marc: |
LEADER 02776nam a2200217 a 4500
001 1140804
005 2022-08-30
008 1978 bl uuuu 00u1 u #d
100 1 $aMORAES, G. J. de
245 $aBiology of Amblyseius citrifolius (Denmark and Muma) (Acarina-Phytoseiidae).
260 $aPetrolina: EMBRAPA-CPATSA$c1978
300 $a70 p.$cil.
520 $aDescrjptions of the morphological changes within each stage, of the molting and hatching processes and of the quiescent states of Amblyseius citrifolius (Denmark & Muma) were given. The larva emerged, posterior first, from the narrow end of the egg. Hatching took ca. 8 mino The duration of the ecdysis (ca. 20 to 30 min) was approximately the same for all the stages. The quiescent states were characterized by the extended, apposed palpi, by the protruded gnathosoma, by the pale, shiny coloration of the body and by a typical response to a contact stimulus. The duration of the quiescent state ranged from ca. 9.7" hr to 11.3 hr. Continuous observations on behavior indicated that more than 80% of the time in the postembryonic stages was spent resting. The number of prey (eggs and larvae) consumed by each individual in the larval, protonymphal, and deutonymphal stages were 6.3, 17.2, and 12.0, respectively. Protonymphs averaged 3.2 minutes feeding on each prey, deutonymphs 4.7 minutes, and larvae 8.0 minutes. -; At a given temperature, different relative humidities did not seem to affect the duration of the egg stage. The eclosion rates of A. citrifolius were shown in relation to saturation deficit at 16, 20, 24, 28, and 32°C. The development from egg to adult was completed in 19.7, 7.7, 5.0, and" 3.6 days at 15, 20, 25, and 30°C, respectively.The egg, larval, protonymphal and deutonymphal stages required 27.3, 10.7, 14.1, and 15.8 degree days, respectively, to be completed. Preoviposition, oviposition, and postoviposition periods and longevity were observed at 15, 20, 25, and 30°C. The fecundity averaged 31.3, 40.9, Moraes & McMurtry 3 49.7, and 41.3 eggs per ferna1e at 15, 20, 25, and 30°C, respective1y. Average dai1y egg production at 15, 20, 25, and 30°C was .75, 1.25, 2.11, and 2.51 eggs, respective1y, per ferna1e. Po11ens of Pyrus kawakarnii, Ma1ephora crocea (Jacq.), and avocado, a cornbination of Tetranychus pacificus McGregor (eggs + 1arvae) p1us~. crocea po11en, and T. pacificus (a11 stages) were the best foods for oviposition and surviva1 of A. citrifo1ius. T. pacificus (eggs + .larvae) a1so was one of the best for survivarship af the predator.
650 $aAmblyseius
650 $aInsect biology
650 $aBiologia
650 $aControle Biológico
650 $aInseto
653 $aAcaro predador
653 $aAmblyseius citrifolius
700 1 $aMcMURTRY, J. A.
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Registro original: |
Embrapa Semiárido (CPATSA) |
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Registro Completo
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
08/06/2022 |
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Data da última atualização: |
08/06/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
PEIXOTO, J. C.; NOGUEIRA, A. E.; DIAS, A.; TORRES, J. A.; CRUZ, J. C. da; RIBEIRO, C.; SIQUEIRA, K. P. F. |
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Afiliação: |
CAUE RIBEIRO DE OLIVEIRA, CNPDIA. |
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Título: |
Experimental evaluation of the activity and selectivity of pure MnWO4 and doped with rare earth ions in the CO2 photoreduction process. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Materials Research Bulletin,, v. 153, 111912, 2022. |
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Páginas: |
1 - 10 |
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ISSN: |
0025-5408 |
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DOI: |
https://doi.org/10.1016/j.materresbull.2022.111912 |
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Idioma: |
Inglês |
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Conteúdo: |
The reduction of CO2 to produce useful carbon compounds offers a way to manage the emissions from various industrial sectors. However, selecting efficient systems remain a crucial issue, especially considering the low selectivity of the photocatalysts traditionally used in CO2 photoreduction processes. Here we demonstrate that the modification of MnWO4 with rare earth ions (Europium and Terbium) synthesized by the coprecipitation method can tune the activity and selectivity of the products formed in the process of CO2 photoreduction under UV irradiation. The CO2 photoreduction assays indicated that the photocatalysts presented good activity, resulting in acetate, acetone, acetic acid, ethanol, methane, and methanol products. Doping provided selectivity near 100% for CO2 conversion to methanol and increased the capacity of C2 (e.g., ethanol) production, opening the way for a better understanding of the activity and selectivity of tungstates in the CO2 photoreduction process. |
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Palavras-Chave: |
Doping; Manganese tungstate; Rare earth; Selectivity. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1143863/1/p-Experimental-evaluation-of-the-activity-and-selectivity-of-pure-MnWO4-and.pdf
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Marc: |
LEADER 01838naa a2200277 a 4500
001 2143863
005 2022-06-08
008 2022 bl uuuu u00u1 u #d
022 $a0025-5408
024 7 $ahttps://doi.org/10.1016/j.materresbull.2022.111912$2DOI
100 1 $aPEIXOTO, J. C.
245 $aExperimental evaluation of the activity and selectivity of pure MnWO4 and doped with rare earth ions in the CO2 photoreduction process.$h[electronic resource]
260 $c2022
300 $a1 - 10
520 $aThe reduction of CO2 to produce useful carbon compounds offers a way to manage the emissions from various industrial sectors. However, selecting efficient systems remain a crucial issue, especially considering the low selectivity of the photocatalysts traditionally used in CO2 photoreduction processes. Here we demonstrate that the modification of MnWO4 with rare earth ions (Europium and Terbium) synthesized by the coprecipitation method can tune the activity and selectivity of the products formed in the process of CO2 photoreduction under UV irradiation. The CO2 photoreduction assays indicated that the photocatalysts presented good activity, resulting in acetate, acetone, acetic acid, ethanol, methane, and methanol products. Doping provided selectivity near 100% for CO2 conversion to methanol and increased the capacity of C2 (e.g., ethanol) production, opening the way for a better understanding of the activity and selectivity of tungstates in the CO2 photoreduction process.
653 $aDoping
653 $aManganese tungstate
653 $aRare earth
653 $aSelectivity
700 1 $aNOGUEIRA, A. E.
700 1 $aDIAS, A.
700 1 $aTORRES, J. A.
700 1 $aCRUZ, J. C. da
700 1 $aRIBEIRO, C.
700 1 $aSIQUEIRA, K. P. F.
773 $tMaterials Research Bulletin,$gv. 153, 111912, 2022.
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Embrapa Instrumentação (CNPDIA) |
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