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 | Acesso ao texto completo restrito à biblioteca da Embrapa Hortaliças. Para informações adicionais entre em contato com cnph.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Hortaliças. |
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Data corrente: |
23/11/2020 |
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Data da última atualização: |
23/11/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SOUSA, N. C. M.; MICHEREFF FILHO, M.; SILVA, P. A.; TORRES, J. B. |
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Afiliação: |
NAYARA C. M. SOUSA, UNIVERSIDADE FEDERAL RURAL DE PERNAMBUCO; MIGUEL MICHEREFF FILHO, CNPH; PALOMA A. SILVA; JORGE B. TORRES, UNIVERSIDADE FEDERAL RURAL DE PERNAMBUCO. |
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Título: |
Determination of an economic injury level for old world bollworm (Lepidoptera: Nactuidae) in processing tomato in Brazil. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Journal of Economic Entomology, v. 113, n. 4, p. 1881-1887 May 2020. |
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DOI: |
10.1093/jee/toaa082 |
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Idioma: |
Inglês |
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Conteúdo: |
Tomato plants host various herbivores, including the Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae),recently introduced into South and Central America. It is a harmful pest for tomato crops, damaging mainly the flowers and fruits. The assessment of losses and the establishment of economic injury level (EIL) and economic threshold (ET) are core steps toward establishing a control program. We determined losses caused by H. armigera on processing tomato and estimated EIL/ET values. Trials were run during two growing seasons using tomato plants caged in the field. The field cage experiment consisted of six densities of H. armigera second instar larvae (0, 1, 3, 6, 12, and 24 larvae per row meter) at two infestations periods spaced 15 d apart with the first infestation done 90 d after transplanting. The larvae were placed individually on the third upper fully developed leaf. The number of healthy and damaged fruits, size, and weight of the fruits were measured. Yield losses as a function of infestation of 1?24 larvae per row meter ranged from 4 to 34% and resulted in a yield reduction of 1.22?12.77 kg per row meter. The EIL ranged from 1.41 to 1.72 and from 2.11 to 2.58 larvae perrow meter of plants in 2017 and 2018 cropping seasons, respectively. Helicoverpa armigera causes significant reduction of tomato yield. These EIL values will enable better control decision-making in processing tomato. |
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Thesagro: |
Controle Químico. |
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Thesaurus Nal: |
Chemical control. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02061naa a2200193 a 4500
001 2126951
005 2020-11-23
008 2020 bl uuuu u00u1 u #d
024 7 $a10.1093/jee/toaa082$2DOI
100 1 $aSOUSA, N. C. M.
245 $aDetermination of an economic injury level for old world bollworm (Lepidoptera$bNactuidae) in processing tomato in Brazil.$h[electronic resource]
260 $c2020
520 $aTomato plants host various herbivores, including the Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae),recently introduced into South and Central America. It is a harmful pest for tomato crops, damaging mainly the flowers and fruits. The assessment of losses and the establishment of economic injury level (EIL) and economic threshold (ET) are core steps toward establishing a control program. We determined losses caused by H. armigera on processing tomato and estimated EIL/ET values. Trials were run during two growing seasons using tomato plants caged in the field. The field cage experiment consisted of six densities of H. armigera second instar larvae (0, 1, 3, 6, 12, and 24 larvae per row meter) at two infestations periods spaced 15 d apart with the first infestation done 90 d after transplanting. The larvae were placed individually on the third upper fully developed leaf. The number of healthy and damaged fruits, size, and weight of the fruits were measured. Yield losses as a function of infestation of 1?24 larvae per row meter ranged from 4 to 34% and resulted in a yield reduction of 1.22?12.77 kg per row meter. The EIL ranged from 1.41 to 1.72 and from 2.11 to 2.58 larvae perrow meter of plants in 2017 and 2018 cropping seasons, respectively. Helicoverpa armigera causes significant reduction of tomato yield. These EIL values will enable better control decision-making in processing tomato.
650 $aChemical control
650 $aControle Químico
700 1 $aMICHEREFF FILHO, M.
700 1 $aSILVA, P. A.
700 1 $aTORRES, J. B.
773 $tJournal of Economic Entomology$gv. 113, n. 4, p. 1881-1887 May 2020.
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Registro original: |
Embrapa Hortaliças (CNPH) |
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Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Café. |
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Data corrente: |
19/01/2022 |
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Data da última atualização: |
19/01/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
MIRANDA, T. L. R.; RESENDE, M. D. V. de; AZEVEDO, C. F.; NUNES, A. C. P.; TAKAHASHI, E. K.; SIMIQUELI, G. F.; SILVA, F. F. e; ALVES, R. S. |
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Afiliação: |
TAIANA LOPES RANGEL MIRANDA, UFV; MARCOS DEON VILELA DE RESENDE, CNPCa; CAMILA FERREIRA AZEVEDO, UFV; ANDREI CAÍQUE PIRES NUNES, UNIVERSIDADE FEDERAL DO SUL DA BAHIA; ELIZABETE KEIKO TAKAHASHI, CELULOSE NIPO-BRASILEIRA S.A; GUILHERME FERREIRA SIMIQUELI, UFV; FABYANO FONSECA E SILVA, UFV; RODRIGO SILVA ALVES, UFLA. |
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Título: |
Evaluation of a new additive-dominance genomic model and implications for quantitative genetics and genomic selection. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Scientia Agricola, v. 79, n. 6, p. 1-7, 2022. |
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DOI: |
https://doi.org/10.1590/1678-992X-2021-0074 |
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Idioma: |
Inglês |
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Conteúdo: |
The Fisher?s infinitesimal model is traditionally used in quantitative genetics and genomic selection, and it attributes most genetic variance to additive variance. Recently, the dominance maximization model was proposed and it prioritizes the dominance variance based on alternative parameterizations. In this model, the additive effects at the locus level are introduced into the model after the dominance variance is maximized. In this study, the new parameterizations of additive and dominance effects on quantitative genetics and genomic selection were evaluated and compared with the parameterizations traditionally applied using the genomic best linear unbiased prediction method. As the parametric relative magnitude of the additive and dominance effects vary with allelic frequencies of populations, we considered different minor allele frequencies to compare the relative magnitudes. We also proposed and evaluated two indices that combine the additive and dominance variances estimated by both models. The dominance maximization model, along with the two indices, offers alternatives to improve the estimates of additive and dominance variances and their respective proportions and can be successfully used in genetic evaluation. |
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Thesagro: |
Melhoramento Genético Vegetal; Seleção Genética. |
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Thesaurus NAL: |
Molecular models; Plant breeding; Plant selection guides. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/230381/1/evaluation-of-a-new-additive.pdf
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Marc: |
LEADER 02131naa a2200277 a 4500
001 2139183
005 2022-01-19
008 2022 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1590/1678-992X-2021-0074$2DOI
100 1 $aMIRANDA, T. L. R.
245 $aEvaluation of a new additive-dominance genomic model and implications for quantitative genetics and genomic selection.$h[electronic resource]
260 $c2022
520 $aThe Fisher?s infinitesimal model is traditionally used in quantitative genetics and genomic selection, and it attributes most genetic variance to additive variance. Recently, the dominance maximization model was proposed and it prioritizes the dominance variance based on alternative parameterizations. In this model, the additive effects at the locus level are introduced into the model after the dominance variance is maximized. In this study, the new parameterizations of additive and dominance effects on quantitative genetics and genomic selection were evaluated and compared with the parameterizations traditionally applied using the genomic best linear unbiased prediction method. As the parametric relative magnitude of the additive and dominance effects vary with allelic frequencies of populations, we considered different minor allele frequencies to compare the relative magnitudes. We also proposed and evaluated two indices that combine the additive and dominance variances estimated by both models. The dominance maximization model, along with the two indices, offers alternatives to improve the estimates of additive and dominance variances and their respective proportions and can be successfully used in genetic evaluation.
650 $aMolecular models
650 $aPlant breeding
650 $aPlant selection guides
650 $aMelhoramento Genético Vegetal
650 $aSeleção Genética
700 1 $aRESENDE, M. D. V. de
700 1 $aAZEVEDO, C. F.
700 1 $aNUNES, A. C. P.
700 1 $aTAKAHASHI, E. K.
700 1 $aSIMIQUELI, G. F.
700 1 $aSILVA, F. F. e
700 1 $aALVES, R. S.
773 $tScientia Agricola$gv. 79, n. 6, p. 1-7, 2022.
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