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Registro Completo |
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Biblioteca(s): |
Embrapa Hortaliças. |
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Data corrente: |
01/08/2000 |
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Data da última atualização: |
01/02/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
DUSI, A. N.; PETERS, D.; WERF, W. van der. |
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Afiliação: |
ANDRE NEPOMUCENO DUSI, CNPH. |
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Título: |
Measuring and modeling the effects of inoculation date and aphid flights on the secondary spread of Beet mosaic virus in sugar beet. |
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Ano de publicação: |
2000 |
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Fonte/Imprenta: |
Annals of Applied Biology, v. 136, n. 2, p.131-136, 2000. |
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ISSN: |
1744-7348 |
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Idioma: |
Inglês |
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Conteúdo: |
The effect of the inoculation date on the spread of Beet mosaic virus (BtMV) in sugar beet field plots was studied. Two plants in the centre of each plot were inoculated with BtMV using Myzus persicae. The spread of the infection around these sources was monitored by inspecting the plants on two diagonal transects through the centre of the plot. Early inoculations resulted in a greater spread than late inoculations, but any inoculation before the onset of the aphid migration resulted in a similar-sized spread. The spread was concentrated in patches around the inoculated plants, and its rate was explained by vector pressure, as shown by regression analysis and a mechanistic simulation model. This vector pressure was quantified using data obtained by catching aphids in a green water trap in the crop, catching aphids in a 12 m high suction trap at a distant location, and infection of bait plants from adjacent virus source plants. The daily total aphid catches obtained by a suction trap provided the best statistical explanation for the spread of this virus. The parameter r, describing the relationship between vector pressure and the rate of disease progress, was remarkably robust. This parameter varied less than 10% between treatments (infection date) within a single experiment, and less than a factor two between four experiments performed at different sites in two years. The robustness of this parameter suggests that the spread of a potyvirus may be predicted on the basis of the initial infection date and vector abundance. MenosThe effect of the inoculation date on the spread of Beet mosaic virus (BtMV) in sugar beet field plots was studied. Two plants in the centre of each plot were inoculated with BtMV using Myzus persicae. The spread of the infection around these sources was monitored by inspecting the plants on two diagonal transects through the centre of the plot. Early inoculations resulted in a greater spread than late inoculations, but any inoculation before the onset of the aphid migration resulted in a similar-sized spread. The spread was concentrated in patches around the inoculated plants, and its rate was explained by vector pressure, as shown by regression analysis and a mechanistic simulation model. This vector pressure was quantified using data obtained by catching aphids in a green water trap in the crop, catching aphids in a 12 m high suction trap at a distant location, and infection of bait plants from adjacent virus source plants. The daily total aphid catches obtained by a suction trap provided the best statistical explanation for the spread of this virus. The parameter r, describing the relationship between vector pressure and the rate of disease progress, was remarkably robust. This parameter varied less than 10% between treatments (infection date) within a single experiment, and less than a factor two between four experiments performed at different sites in two years. The robustness of this parameter suggests that the spread of a potyvirus may be predicted on the basis of th... Mostrar Tudo |
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Palavras-Chave: |
BtMV; Inoculation. |
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Thesagro: |
Beta Vulgaris; Beterraba Açucareira; Inoculação; Vírus. |
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Thesaurus Nal: |
sugar beet. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/767676/1/AP-CNPH-01022024-DUSI-et-al-2000.pdf
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Marc: |
LEADER 02262naa a2200241 a 4500
001 1767676
005 2024-02-01
008 2000 bl uuuu u00u1 u #d
022 $a1744-7348
100 1 $aDUSI, A. N.
245 $aMeasuring and modeling the effects of inoculation date and aphid flights on the secondary spread of Beet mosaic virus in sugar beet.$h[electronic resource]
260 $c2000
520 $aThe effect of the inoculation date on the spread of Beet mosaic virus (BtMV) in sugar beet field plots was studied. Two plants in the centre of each plot were inoculated with BtMV using Myzus persicae. The spread of the infection around these sources was monitored by inspecting the plants on two diagonal transects through the centre of the plot. Early inoculations resulted in a greater spread than late inoculations, but any inoculation before the onset of the aphid migration resulted in a similar-sized spread. The spread was concentrated in patches around the inoculated plants, and its rate was explained by vector pressure, as shown by regression analysis and a mechanistic simulation model. This vector pressure was quantified using data obtained by catching aphids in a green water trap in the crop, catching aphids in a 12 m high suction trap at a distant location, and infection of bait plants from adjacent virus source plants. The daily total aphid catches obtained by a suction trap provided the best statistical explanation for the spread of this virus. The parameter r, describing the relationship between vector pressure and the rate of disease progress, was remarkably robust. This parameter varied less than 10% between treatments (infection date) within a single experiment, and less than a factor two between four experiments performed at different sites in two years. The robustness of this parameter suggests that the spread of a potyvirus may be predicted on the basis of the initial infection date and vector abundance.
650 $asugar beet
650 $aBeta Vulgaris
650 $aBeterraba Açucareira
650 $aInoculação
650 $aVírus
653 $aBtMV
653 $aInoculation
700 1 $aPETERS, D.
700 1 $aWERF, W. van der.
773 $tAnnals of Applied Biology$gv. 136, n. 2, p.131-136, 2000.
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Embrapa Hortaliças (CNPH) |
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| 18. |  | AVILA, A. C. de; HAAN, P. de; KITAJIMA, E. W.; RESENDE, R. de O.; GOLDBACH, R. W.; PETERS, D. Characterization of a distinct isolate of tomato spotted wilt virus (TSWV) from impatiens in the Netherlands. Fitopatologia Brasileira, Brasilia, v.16, n.2, p.25, jun. 1991. Resumo.| Biblioteca(s): Embrapa Hortaliças. |
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| 19. | | POZZER, L.; BEZERRA, I. C.; KORMELINK, R.; PRINS, M.; PETERS, D.; RESENDE, R. de O.; AVILA, A. C. de. Characterization of a tospovirus isolate of iris yellow spot virus associated with a disease in onion fields in Brazil. Plant Diseases, v.83, n.4, p.345-350, Apr. 1999.| Biblioteca(s): Embrapa Hortaliças. |
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| Registros recuperados : 27 | |
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