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Registro Completo |
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
22/11/2002 |
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Data da última atualização: |
22/11/2002 |
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Autoria: |
SILVA, C. A.; ANDERSON, S. J.; GUILHERME, L. R. G. |
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Título: |
Caracterizacao de substancias humics em latossolo sob efeito da calagem por cromatografia por exclusao de tamanho, titulometria e composicao isotopica de 13C. |
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Ano de publicação: |
1997 |
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Fonte/Imprenta: |
In: ENCONTRO BRASILEIRO SOBRE SUBSTANCIAS HUMICAS, 2., 1997, Sao Carlos,SP. Anais... Sao Carlos: EMBRAPA-CNPDIA, 1997. p.137. |
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Idioma: |
Português |
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Categoria do assunto: |
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Marc: |
LEADER 00557naa a2200133 a 4500
001 1335171
005 2002-11-22
008 1997 bl uuuu u00u1 u #d
100 1 $aSILVA, C. A.
245 $aCaracterizacao de substancias humics em latossolo sob efeito da calagem por cromatografia por exclusao de tamanho, titulometria e composicao isotopica de 13C.
260 $c1997
700 1 $aANDERSON, S. J.
700 1 $aGUILHERME, L. R. G.
773 $tIn: ENCONTRO BRASILEIRO SOBRE SUBSTANCIAS HUMICAS, 2., 1997, Sao Carlos,SP. Anais... Sao Carlos: EMBRAPA-CNPDIA, 1997. p.137.
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Embrapa Solos (CNPS) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Mandioca e Fruticultura. Para informações adicionais entre em contato com cnpmf.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
29/07/2015 |
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Data da última atualização: |
18/05/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
BARBOSA, F. F. L.; SILVA, S. X. DE B.; ANDRADE, E. C. de; ALMEIDA, D. DE O.; SILVA, T. S. M. da; SOARES, A. C. F.; ASTUA, J. de F. |
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Afiliação: |
FRANCISCO FERRAZ LARANJEIRA BARBOSA, CNPMF; SUELY XAVIER DE BRITO SILVA, ADAB; EDUARDO CHUMBINHO DE ANDRADE, SRI; DÉCIO DE OLIVEIRA ALMEIDA, ADAB; TIBERIO SANTOS MARTINS DA SILVA, CNPMF; ANA CRISTINA FERMINO SOARES, UFRB; JULIANA DE FREITAS ASTUA, CNPMF. |
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Título: |
Infestation dynamics of Brevipalpus phoenicis (Geijskes) (Acari: Tenuipalpidae) in citrus orchards as affected by edaphic and climatic variables. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Experimental & Applied Acarology, 29 May, 2015. |
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Páginas: |
18p. |
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Idioma: |
Inglês |
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Conteúdo: |
Brevipalpus phoenicis (Geijskes) is a cosmopolitan and polyphagous mite that transmits important phytoviruses, such as coffee ringspot virus, passion fruit green spot virus and Citrus leprosis virus C. To characterise the dynamics of the probability and the rate of B. phoenicis infestation in response to edaphic and climatic factors, monthly inspections were performed in nine orchards in a citrus region of the State of Bahia, Brazil, for 35 months. Three fruits per plant were examined using a magnifying glass (109) on 21 plants distributed along a ??W??-shaped path in each orchard. Meteorological data were collected from a conventional station. To determine the correlations among the climatic variables, the data were analysed using Spearman correlations. Variables were selected by principal component analysis, and those that contributed the most to differentiate the groups were evaluated via a Mann?Whitney test. Using the quantile?quantile method, the limit values for the following climatic variables were determined: temperature (24.5 C), photoperiod (12 h), relative humidity (83 %), evapotranspiration (71 mm) and rainy days (14 days). The combination of longer days, higher temperatures, lower relative humidity levels and lower evapotranspiration increased the probability of B. phoenicis infestation, whereas successive rain events decreased that risk. Infestation rates were negatively affected by relative humidity levels above 83 % and were positively affected by a decreasing available soil?water fraction and increasing insolation and photoperiod. MenosBrevipalpus phoenicis (Geijskes) is a cosmopolitan and polyphagous mite that transmits important phytoviruses, such as coffee ringspot virus, passion fruit green spot virus and Citrus leprosis virus C. To characterise the dynamics of the probability and the rate of B. phoenicis infestation in response to edaphic and climatic factors, monthly inspections were performed in nine orchards in a citrus region of the State of Bahia, Brazil, for 35 months. Three fruits per plant were examined using a magnifying glass (109) on 21 plants distributed along a ??W??-shaped path in each orchard. Meteorological data were collected from a conventional station. To determine the correlations among the climatic variables, the data were analysed using Spearman correlations. Variables were selected by principal component analysis, and those that contributed the most to differentiate the groups were evaluated via a Mann?Whitney test. Using the quantile?quantile method, the limit values for the following climatic variables were determined: temperature (24.5 C), photoperiod (12 h), relative humidity (83 %), evapotranspiration (71 mm) and rainy days (14 days). The combination of longer days, higher temperatures, lower relative humidity levels and lower evapotranspiration increased the probability of B. phoenicis infestation, whereas successive rain events decreased that risk. Infestation rates were negatively affected by relative humidity levels above 83 % and were positively affected by a decreasin... Mostrar Tudo |
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Thesagro: |
Epidemiologia; Orchidaceae; Orquídea; Vírus. |
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Thesaurus NAL: |
Citrus leprosis virus C; Epidemiology. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02416naa a2200277 a 4500
001 2020723
005 2023-05-18
008 2015 bl uuuu u00u1 u #d
100 1 $aBARBOSA, F. F. L.
245 $aInfestation dynamics of Brevipalpus phoenicis (Geijskes) (Acari$bTenuipalpidae) in citrus orchards as affected by edaphic and climatic variables.$h[electronic resource]
260 $c2015
300 $a18p.
520 $aBrevipalpus phoenicis (Geijskes) is a cosmopolitan and polyphagous mite that transmits important phytoviruses, such as coffee ringspot virus, passion fruit green spot virus and Citrus leprosis virus C. To characterise the dynamics of the probability and the rate of B. phoenicis infestation in response to edaphic and climatic factors, monthly inspections were performed in nine orchards in a citrus region of the State of Bahia, Brazil, for 35 months. Three fruits per plant were examined using a magnifying glass (109) on 21 plants distributed along a ??W??-shaped path in each orchard. Meteorological data were collected from a conventional station. To determine the correlations among the climatic variables, the data were analysed using Spearman correlations. Variables were selected by principal component analysis, and those that contributed the most to differentiate the groups were evaluated via a Mann?Whitney test. Using the quantile?quantile method, the limit values for the following climatic variables were determined: temperature (24.5 C), photoperiod (12 h), relative humidity (83 %), evapotranspiration (71 mm) and rainy days (14 days). The combination of longer days, higher temperatures, lower relative humidity levels and lower evapotranspiration increased the probability of B. phoenicis infestation, whereas successive rain events decreased that risk. Infestation rates were negatively affected by relative humidity levels above 83 % and were positively affected by a decreasing available soil?water fraction and increasing insolation and photoperiod.
650 $aCitrus leprosis virus C
650 $aEpidemiology
650 $aEpidemiologia
650 $aOrchidaceae
650 $aOrquídea
650 $aVírus
700 1 $aSILVA, S. X. DE B.
700 1 $aANDRADE, E. C. de
700 1 $aALMEIDA, D. DE O.
700 1 $aSILVA, T. S. M. da
700 1 $aSOARES, A. C. F.
700 1 $aASTUA, J. de F.
773 $tExperimental & Applied Acarology, 29 May, 2015.
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