Ocorrência de viroses em tomate e pimentão na região serrana do estado do Espírito Santo

Ávila, A. C. de; Inoue‐Nagata, Alice K.; Costa, Hélcio; Boiteux, L. S.; Neves, L. O.; Prates, Ricardo S.; Bertini, Leopoldo Araújo

doi:10.1590/s0102-05362004000300032

Cited by 12 publications

(6 citation statements)

References 5 publications

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“…PepYMV prevails in the main sweet and chili pepper national-producing area and is considered, along with vascular wilt, a priority in Brazilian Capsicum breeding programs (Ávila et al, 2004;Maciel-Zambolim et al, 2004;Nascimento et al, 2007;Bento et al, 2009;Moura et al, 2011). PepYMV and PVY cause identical symptoms and these two viruses are serologically related, although they may be differentiated by some tests, such as indirect ELISA (Truta et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

Inheritance of resistance to Pepper yellow mosaic virus in Capsicum baccatum var. pendulum

Bento¹,

Rodrigues²,

Gonçalves³

et al. 2013

Genet. Mol. Res.

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ABSTRACT. We investigated inheritance of resistance to Pepper yellow mosaic virus (PepYMV) in Capsicum baccatum var. pendulum accessions UENF 1616 (susceptible) crossed with UENF 1732 (resistant). Plants from generations P 1 , P 2 , F 1 , F 2 , BC 1:1 , and BC 1:2 were inoculated and the symptoms were evaluated for 25 days. Subsequently, an area under the disease progress curve was calculated and subjected to generation means analysis. Only the average and epistatic effects were significant. The broad and narrow sense heritability estimates were 35.52 and 21.79%, respectively. The estimate of the minimum number of genes that control resistance was 7, indicating that resistance is polygenic and complex. Thus, methods to produce segregant populations that advocate selection in more advanced generations would be the most appropriate to produce chili pepper cultivars resistant to PepYMV.

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Section: Introductionmentioning

confidence: 99%

Inheritance of resistance to Pepper yellow mosaic virus in Capsicum baccatum var. pendulum

Bento¹,

Rodrigues²,

Gonçalves³

et al. 2013

Genet. Mol. Res.

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“…Apresenta o maior volume de produção entre as hortaliças, sendo comercializadas, anualmente, cerca de 4,1 milhões de toneladas, das quais aproximadamente 70% são produzidas nos Estados de Minas Gerais, São Paulo, Rio de Janeiro, Espírito Santo e Goiás (AGRIANUAL, 2012). Apesar da importância, a cultura é considerada de alto risco em função da grande diversidade de pragas e doenças que acometem as lavouras destinadas ao consumo in natura ou para fins industriais (ÁVILA et al, 2004;CARVALHO et al, 2012).…”

Section: Introductionunclassified

Incidence of leaf miner and insect vectors for pest management systems in the tomato

Pratissoli

Carvalho

Pastori

et al. 2015

Revista Ciência Agronômica

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RESUMO-Os artrópodes considerados vetores de viroses são pragas iniciais na cultura do tomateiro e possuem capacidade de causar danos diretos e indiretos, principalmente quando ocorrem falhas no manejo. O objetivo deste estudo foi estudar a incidência e infestação de vetores de viroses em dois sistemas de manejo de pragas em plantios de tomateiro estaqueado. O experimento foi conduzido em plantio de tomateiro da variedade 'Débora Mix', grupo Santa Clara, com espaçamento de 1,0 x 0,5 m (linhas x plantas), em condução com duas hastes (Tutoramento vertical). Os sistemas avaliados foram: Manejo Ecológico de Pragas (MEP)monitoramento das pragas e tomada de decisão para a aplicação de inseticidas com base no nível de infestação e Convencionalcalendário de aplicações que iniciaram sete dias após o transplantio e seguiram sendo realizadas duas vezes por semana. A maior incidência de B. tabaci ocorreu no sistema MEP, enquanto que a maior incidência de Liriomyza sp. e diferentes espécies de pulgões ocorreu no sistema convencional, mas para F. schultzei não houve diferença na incidência entre os manejos. Houve infestação dos vetores de viroses durante todo o período de condução da cultura e, no geral, considerando todos os insetospraga, a redução no número de aplicações foi de 88,14% no MEP. O sistema de manejo adotado não interfere na incidência e infestação de vetores de viroses na cultura, mas a implantação do sistema MEP viabiliza a utilização criteriosa dos defensivos agrícolas, permitindo redução do número de pulverizações com consequente redução dos custos de produção.

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“…Pepper yellow mosaic virus (PepYMV, family Potyviridae, genus Potyvirus), originally described infecting pepper plants (Inoue-Nagata et al, 2002), can also infect tomato. The incidence of PepYMV in tomato crops has increased in Brazil, with recent reports of economic losses of up to 100% in the Espírito Santo State (Maciel-Zambolim et al, 2004;Ávila et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

Screening of Lycopersicon sp. accessions for resistance to Pepper yellow mosaic virus

Juhász¹,

Silva²,

Júnior³

et al. 2006

Sci. agric. (Piracicaba, Braz.)

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The tomato is a crop of great economical importance, however it is susceptible to a large number of pests and diseases, including viral disease for which the best control strategy is genetic resistance. The disease, caused by Pepper yellow mosaic virus (PepYMV) has become a recent problem. Consequently, the idea of this work was to screen 376 accessions of Lycopersicon sp. to find possible sources of resistance to PepYMV. Out of 355 accessions of L. esculentum inoculated with PepYMV, 52 did not express symptoms. However, the virus reached high concentration in the tissues as measured by indirect ELISA, and therefore they were not considered as safe sources of resistance. Among 21 accessions of wild Lycopersicon species, one of L. hirsutum was shown to be resistant, with no observed symptoms. A low concentration of the virus was detected as measured by indirect ELISA. This accession seems to be suitable for breeding programs aiming at incorporating resistance for this disease into commercial tomato cultivars.

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Ocorrência de viroses em tomate e pimentão na região serrana do estado do Espírito Santo

Cited by 12 publications

References 5 publications

Inheritance of resistance to Pepper yellow mosaic virus in Capsicum baccatum var. pendulum

Inheritance of resistance to Pepper yellow mosaic virus in Capsicum baccatum var. pendulum

Incidence of leaf miner and insect vectors for pest management systems in the tomato

Screening of Lycopersicon sp. accessions for resistance to Pepper yellow mosaic virus

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