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Registro Completo |
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
16/05/2022 |
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Data da última atualização: |
13/01/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BATISTA, D. da C.; ALVES JÚNIOR, M.; BARBOSA, M. A. G. |
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Afiliação: |
DIOGENES DA CRUZ BATISTA, CPATSA; MIGUEL ALVES JÚNIOR, Pará Federal University; MARIA ANGELICA GUIMARAES BARBOSA, CPATSA. |
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Título: |
Spatio-temporal distribution and influence of distance of diseased passion fruit plants in the dissemination of the Cowpea aphid-borne mosaic virus in semi-arid tropical region. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Australian Journal of Crop Science, v. 15, n. 2, p. 266-272, 2022. |
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ISSN: |
1835-2707 |
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DOI: |
10.21475/ajcs.22.16.02.3426 |
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Idioma: |
Inglês |
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Conteúdo: |
The Cowpea aphid-borne mosaic virus (CABMV), of the genus Potyvirus (Potyviridae), causes the most prominent passion fruit (Passiflora spp.) disease in Brazil. The virus is transmitted in a non-circulating manner by many species of aphids. Chemical control of the vector insect is inefficient, due to the non-circulating nature of the virus-vector aphid relationship, and commercial species of passion fruit are susceptible to the virus. As such, comprehending the disease?s spatio-temporal dissemination dynamic may assist in outlining cultural control strategies, as chemical and genetic control are not used in this situation. The experiments were carried out in commercial fields in the cities of Petrolina-PE and Juazeiro-BA, where the mapping of diseased and healthy plants was carried out over time. The data regarding the incidence of the disease was submitted for analysis with Gompertz, Logistic, Monomolecular and Exponential growth models, in order to determine the best model and the progress rate for the disease?s growth curve. The spatial patterns of the disease along the planting lines and over time were determined using the doublets test and through logistic regression, applied to determine the influence of distance between diseased and healthy plants closer to the disease?s dissemination pattern. The growth model which best adjusted to the CABMV epidemics in passion fruit plants was the Logistic model, and no difference was observed between the ?r? rates of disease progress. The diseased passion fruit plants exhibited, in both fields, an aggregate pattern along the planting line with similar incidence values (4.16% and 6.74%). The fast development of the disease and the tendency toward aggregation between diseased plants were also confirmed with the analysis of distance through logistic regression. Thus, the production of seedlings in environments that are protected from aphids, systematic inspections for eradication of diseased plants (roguing) and the elimination of host weeds around the orchard may be used as management practices do eliminate inoculum sources and reduce the CABMV?s rate of progress. MenosThe Cowpea aphid-borne mosaic virus (CABMV), of the genus Potyvirus (Potyviridae), causes the most prominent passion fruit (Passiflora spp.) disease in Brazil. The virus is transmitted in a non-circulating manner by many species of aphids. Chemical control of the vector insect is inefficient, due to the non-circulating nature of the virus-vector aphid relationship, and commercial species of passion fruit are susceptible to the virus. As such, comprehending the disease?s spatio-temporal dissemination dynamic may assist in outlining cultural control strategies, as chemical and genetic control are not used in this situation. The experiments were carried out in commercial fields in the cities of Petrolina-PE and Juazeiro-BA, where the mapping of diseased and healthy plants was carried out over time. The data regarding the incidence of the disease was submitted for analysis with Gompertz, Logistic, Monomolecular and Exponential growth models, in order to determine the best model and the progress rate for the disease?s growth curve. The spatial patterns of the disease along the planting lines and over time were determined using the doublets test and through logistic regression, applied to determine the influence of distance between diseased and healthy plants closer to the disease?s dissemination pattern. The growth model which best adjusted to the CABMV epidemics in passion fruit plants was the Logistic model, and no difference was observed between the ?r? rates of disease progre... Mostrar Tudo |
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Palavras-Chave: |
CABMV; Doença de plantas; Modelo de distribuição de vírus; Transmissão de vírus. |
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Thesagro: |
Doença; Epidemiologia; Maracujá; Passiflora Edulis; Pulgão; Vírus. |
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Thesaurus Nal: |
Cowpea aphid-borne mosaic virus; Passion fruits. |
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Categoria do assunto: |
O Insetos e Entomologia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1143037/1/Maracuja-Doenca-2022.pdf
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Marc: |
LEADER 03166naa a2200313 a 4500
001 2143037
005 2023-01-13
008 2022 bl uuuu u00u1 u #d
022 $a1835-2707
024 7 $a10.21475/ajcs.22.16.02.3426$2DOI
100 1 $aBATISTA, D. da C.
245 $aSpatio-temporal distribution and influence of distance of diseased passion fruit plants in the dissemination of the Cowpea aphid-borne mosaic virus in semi-arid tropical region.$h[electronic resource]
260 $c2022
520 $aThe Cowpea aphid-borne mosaic virus (CABMV), of the genus Potyvirus (Potyviridae), causes the most prominent passion fruit (Passiflora spp.) disease in Brazil. The virus is transmitted in a non-circulating manner by many species of aphids. Chemical control of the vector insect is inefficient, due to the non-circulating nature of the virus-vector aphid relationship, and commercial species of passion fruit are susceptible to the virus. As such, comprehending the disease?s spatio-temporal dissemination dynamic may assist in outlining cultural control strategies, as chemical and genetic control are not used in this situation. The experiments were carried out in commercial fields in the cities of Petrolina-PE and Juazeiro-BA, where the mapping of diseased and healthy plants was carried out over time. The data regarding the incidence of the disease was submitted for analysis with Gompertz, Logistic, Monomolecular and Exponential growth models, in order to determine the best model and the progress rate for the disease?s growth curve. The spatial patterns of the disease along the planting lines and over time were determined using the doublets test and through logistic regression, applied to determine the influence of distance between diseased and healthy plants closer to the disease?s dissemination pattern. The growth model which best adjusted to the CABMV epidemics in passion fruit plants was the Logistic model, and no difference was observed between the ?r? rates of disease progress. The diseased passion fruit plants exhibited, in both fields, an aggregate pattern along the planting line with similar incidence values (4.16% and 6.74%). The fast development of the disease and the tendency toward aggregation between diseased plants were also confirmed with the analysis of distance through logistic regression. Thus, the production of seedlings in environments that are protected from aphids, systematic inspections for eradication of diseased plants (roguing) and the elimination of host weeds around the orchard may be used as management practices do eliminate inoculum sources and reduce the CABMV?s rate of progress.
650 $aCowpea aphid-borne mosaic virus
650 $aPassion fruits
650 $aDoença
650 $aEpidemiologia
650 $aMaracujá
650 $aPassiflora Edulis
650 $aPulgão
650 $aVírus
653 $aCABMV
653 $aDoença de plantas
653 $aModelo de distribuição de vírus
653 $aTransmissão de vírus
700 1 $aALVES JÚNIOR, M.
700 1 $aBARBOSA, M. A. G.
773 $tAustralian Journal of Crop Science$gv. 15, n. 2, p. 266-272, 2022.
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Registro original: |
Embrapa Semiárido (CPATSA) |
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Registro Completo
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
28/08/2001 |
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Data da última atualização: |
20/09/2004 |
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Autoria: |
FERNANDES, G. B. |
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Título: |
Componentes de Variancia nos Experimentos em Parcelas Subdivididas com Esquema Fatorial nas Parcelas Principais. |
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Ano de publicação: |
1992 |
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Fonte/Imprenta: |
Pesquisa Agropecuaria Brasileira, Brasilia, v.27, n.6, p.797-804, jun.1992 |
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Idioma: |
Português |
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Conteúdo: |
Os componentes de variancia para experimentos balanceados com parcelas subdivididas foram determinados, considerando-se um plano fatorial completo com dois fatores distribuidos nas parcelas, e um terceiro fator, nas subparcelas. Tratou-se o modelo como fixo, aleatorio ou misto, determinando-se em cada caso a combinacao linear mais adequada dos quadrados medios para aplicacao do teste F. Para o modelo fixo observou-se que o teste e realizado da forma usual para os experimentos em parcelas subdivididas. Quando o modelo foi tratado como aleatorio ou misto, verificou-se sempre a necessidade de combinacao dos quadrados medios antes da aplicacao do teste F para os efeitos principais dos fatores e para a interacao daqueles distribuidos nas parcelas. |
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Palavras-Chave: |
aleatorio ou misto; Experimentos balanceados; experimentos fatoriais; modelo fixo. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/AI-SEDE/20695/1/pab03_jun_92.pdf
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Marc: |
LEADER 01308naa a2200169 a 4500
001 1105634
005 2004-09-20
008 1992 bl uuuu u00u1 u #d
100 1 $aFERNANDES, G. B.
245 $aComponentes de Variancia nos Experimentos em Parcelas Subdivididas com Esquema Fatorial nas Parcelas Principais.
260 $c1992
520 $aOs componentes de variancia para experimentos balanceados com parcelas subdivididas foram determinados, considerando-se um plano fatorial completo com dois fatores distribuidos nas parcelas, e um terceiro fator, nas subparcelas. Tratou-se o modelo como fixo, aleatorio ou misto, determinando-se em cada caso a combinacao linear mais adequada dos quadrados medios para aplicacao do teste F. Para o modelo fixo observou-se que o teste e realizado da forma usual para os experimentos em parcelas subdivididas. Quando o modelo foi tratado como aleatorio ou misto, verificou-se sempre a necessidade de combinacao dos quadrados medios antes da aplicacao do teste F para os efeitos principais dos fatores e para a interacao daqueles distribuidos nas parcelas.
653 $aaleatorio ou misto
653 $aExperimentos balanceados
653 $aexperimentos fatoriais
653 $amodelo fixo
773 $tPesquisa Agropecuaria Brasileira, Brasilia$gv.27, n.6, p.797-804, jun.1992
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