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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
11/02/2008 |
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Data da última atualização: |
12/02/2008 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BASSANEZI, R. B.; LARANJEIRA, F. F. |
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Afiliação: |
R. B. Bassaneri, FUNDECITRUS; Francisco Ferraz Laranjeira, CNPMF. |
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Título: |
Spatial patterns of leprosis and its mite vector in commercial citrus groves in Brazil. |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
Plant Patholology, Oxford, v. 56, p. 97-106, 2007. |
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Idioma: |
Português |
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Notas: |
DOI: 10.1111/j.1365-3059.2006.01457.x |
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Conteúdo: |
In order to describe the dissemination of Citrus leprosis virus (CiLV) and Brevipalpus phoenicis, the Tenuipalpidae mite which transmits it, as well as to generate data for future development of better sampling and disease control procedures, analyses were conducted at three levels of spatial hierarchy. Over 100 distribution maps of mite-infested plants and plants with CiLV symptoms were constructed after evaluation of 174 sweet orange commercial grove blocks from four citrus regions of São Paulo State, Brazil. Spatial correlation between maps of mite-infested plants and those with CiLV symptoms
was very low and mostly not significant. Spatial dependency between adjacent plants was incipient as ordinary runs analysis showed that percentages of aggregated sequences within or across rows were very low for both mite-infested and diseased
plants. Index of dispersion (D) values for all quadrat sizes suggested aggregation of plants with symptoms within quadrats, but much less aggregation for mite-infested plants. Values of log(A) and b were higher than 0 and 1, respectively, indicating a general and significant aggregation of infested/diseased plants inside quadrats. However, the degree of aggregation of plants with symptoms was higher than that of infested plants. Aggregation in each grove was positively correlated to the incidence of infested/diseased plants. Spatial autocorrelation also showed a higher strength of aggregation for plants with
symptoms than for infested ones. This is the first time that spatial patterns of leprosis and
B. phoenicis have been described. MenosIn order to describe the dissemination of Citrus leprosis virus (CiLV) and Brevipalpus phoenicis, the Tenuipalpidae mite which transmits it, as well as to generate data for future development of better sampling and disease control procedures, analyses were conducted at three levels of spatial hierarchy. Over 100 distribution maps of mite-infested plants and plants with CiLV symptoms were constructed after evaluation of 174 sweet orange commercial grove blocks from four citrus regions of São Paulo State, Brazil. Spatial correlation between maps of mite-infested plants and those with CiLV symptoms
was very low and mostly not significant. Spatial dependency between adjacent plants was incipient as ordinary runs analysis showed that percentages of aggregated sequences within or across rows were very low for both mite-infested and diseased
plants. Index of dispersion (D) values for all quadrat sizes suggested aggregation of plants with symptoms within quadrats, but much less aggregation for mite-infested plants. Values of log(A) and b were higher than 0 and 1, respectively, indicating a general and significant aggregation of infested/diseased plants inside quadrats. However, the degree of aggregation of plants with symptoms was higher than that of infested plants. Aggregation in each grove was positively correlated to the incidence of infested/diseased plants. Spatial autocorrelation also showed a higher strength of aggregation for plants with
symptoms than for infested ones. Thi... Mostrar Tudo |
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Palavras-Chave: |
Aggregation; Citrus leprosis virus; Epidemics; Spatial analysis. |
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Thesagro: |
Brevipalpus Phoenicis; Citrus Sinensis. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02238naa a2200217 a 4500
001 1654620
005 2008-02-12
008 2007 bl --- 0-- u #d
100 1 $aBASSANEZI, R. B.
245 $aSpatial patterns of leprosis and its mite vector in commercial citrus groves in Brazil.
260 $c2007
500 $aDOI: 10.1111/j.1365-3059.2006.01457.x
520 $aIn order to describe the dissemination of Citrus leprosis virus (CiLV) and Brevipalpus phoenicis, the Tenuipalpidae mite which transmits it, as well as to generate data for future development of better sampling and disease control procedures, analyses were conducted at three levels of spatial hierarchy. Over 100 distribution maps of mite-infested plants and plants with CiLV symptoms were constructed after evaluation of 174 sweet orange commercial grove blocks from four citrus regions of São Paulo State, Brazil. Spatial correlation between maps of mite-infested plants and those with CiLV symptoms was very low and mostly not significant. Spatial dependency between adjacent plants was incipient as ordinary runs analysis showed that percentages of aggregated sequences within or across rows were very low for both mite-infested and diseased plants. Index of dispersion (D) values for all quadrat sizes suggested aggregation of plants with symptoms within quadrats, but much less aggregation for mite-infested plants. Values of log(A) and b were higher than 0 and 1, respectively, indicating a general and significant aggregation of infested/diseased plants inside quadrats. However, the degree of aggregation of plants with symptoms was higher than that of infested plants. Aggregation in each grove was positively correlated to the incidence of infested/diseased plants. Spatial autocorrelation also showed a higher strength of aggregation for plants with symptoms than for infested ones. This is the first time that spatial patterns of leprosis and B. phoenicis have been described.
650 $aBrevipalpus Phoenicis
650 $aCitrus Sinensis
653 $aAggregation
653 $aCitrus leprosis virus
653 $aEpidemics
653 $aSpatial analysis
700 1 $aLARANJEIRA, F. F.
773 $tPlant Patholology, Oxford$gv. 56, p. 97-106, 2007.
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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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| Registros recuperados : 73 | |
| 12. |  | LARANJEIRA, F. F.; DESIMONE, E. R.; GILLIGAN, C. A. Modelling Huanglongbing (HLB) spread and eradication procedures in Brazil. In: CONFERENCE INTERNATIONAL ORGANIZATION CITRUS VIROLOGISTS, 18., Campinas, SP, 2010. Proceedings... Campinas: IOCV, 2010. 1 CD-ROM. 029 PSO
Publicado também em: Citrus Research & Technology, Cordeirópolis, v. 31, Suplemento, 2010| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 15. | | SILVA, S. X. de B.; LARANJEIRA, F. F.; SOARES, A. C. F.; MICHEREFF, S. J. Amostragem, caracterização de sintomas e escala diagramática da mancha graxa dos citros (Mycosphaerella citri) no Recôncavo Baiano. Ciência Rural, Santa Maria, v.39, n.3, p.896-899, mai-jun. il. Disponível em: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782008005000098&lng=pt&nrm=iso
Acesso em 19/02/2009.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Internacional - A |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
|  |
| 17. | | SILVA, S. X. B.; SOARES, A. C. F.; LARANJEIRA, F. F. L.; ALMEIDA, D. O. Amostragem piloto e incidência do ácaro vetor do CiLV em pomares cítricos do Recôncavo Baiano. Tropical Plant Pathology, Brasília, DF, v. 34, ago. 2009. Suplemento. Edição dos Resumos do XLII Congresso Brasileiro de Fitopatologia, Rio de Janeiro, ago. 2009. Suplemento. Resumo 453.
LARANJEIRA, F. F., i. e., FRANCISCO FERRAZ LARANJEIRA BARBOSA| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 20. | | FRANCO, D.; STUCHI, E. S.; SILVA, S. R.; MARTINS, A. B. G.; LARANJEIRA, F. F. Citrus variegated chlorosis damage assessment in six sweet orange cultivars in São Paulo, Brazil. In: INTERNATIONAL RESEARCH CONFERENCE ON HUANGLONGBING, 2008, Orlando, Florida. Proceedings of the meeting... Orlando: Florida Citrus Mutual, 2008. p. 340-341.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| Registros recuperados : 73 | |
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