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 | Acesso ao texto completo restrito à biblioteca da Embrapa Recursos Genéticos e Biotecnologia. Para informações adicionais entre em contato com cenargen.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Recursos Genéticos e Biotecnologia. |
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Data corrente: |
03/05/2005 |
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Data da última atualização: |
10/05/2022 |
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Autoria: |
DE CAPDEVILLE, G.; MAFFIA, L. A.; FINGER, F. L.; BATISTA, U. G. |
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Título: |
Pre-harvest calcium sulfate applications affect vase life and severity of gray mold in cut roses. |
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Ano de publicação: |
2005 |
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Fonte/Imprenta: |
Scientia Horticulturae, v. 103, n. 3, p. 329-338, 2005. |
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Idioma: |
Português |
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Conteúdo: |
Gray mold, caused by Botrytis cinerea Pers. Fr., is a major disease in roses. The effect of spraying rose (Cultivar ?Kiss?) buds with calcium sulfate on the intensity of gray mold was evaluated. Calcium sulfate was sprayed on the buds at different schedules and concentrations before harvest. Thereafter, the buds were harvested and either inoculated or not with B. cinerea. The treatments reduced both the progress and severity of gray mold and increased vase life of the flowers. Good results were achieved with 10 and 20 mM calcium sulfate, applied 24 h before harvest. In the uninoculated assay, the maximum percentages of reduction of the area under the disease progress curve (AUDPC) and of severity were 86% and 86%, respectively, and in the inoculated assay, 68% and 76%, respectively. Vase life of the flowers was increased at least 30% in the assay without inoculation and 20% in the assay with inoculation. Spraying roses with calcium sulfate at 10 mM or 20 mM one day before harvest is recommended to control gray mold after harvest. |
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Palavras-Chave: |
Controle de doenças; Rosa hybrida. |
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Thesagro: |
Botrytis Cinerea; Doença de Planta; Pós-Colheita. |
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Thesaurus Nal: |
calcium. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01726naa a2200229 a 4500
001 1185639
005 2022-05-10
008 2005 bl uuuu u00u1 u #d
100 1 $aDE CAPDEVILLE, G.
245 $aPre-harvest calcium sulfate applications affect vase life and severity of gray mold in cut roses.$h[electronic resource]
260 $c2005
520 $aGray mold, caused by Botrytis cinerea Pers. Fr., is a major disease in roses. The effect of spraying rose (Cultivar ?Kiss?) buds with calcium sulfate on the intensity of gray mold was evaluated. Calcium sulfate was sprayed on the buds at different schedules and concentrations before harvest. Thereafter, the buds were harvested and either inoculated or not with B. cinerea. The treatments reduced both the progress and severity of gray mold and increased vase life of the flowers. Good results were achieved with 10 and 20 mM calcium sulfate, applied 24 h before harvest. In the uninoculated assay, the maximum percentages of reduction of the area under the disease progress curve (AUDPC) and of severity were 86% and 86%, respectively, and in the inoculated assay, 68% and 76%, respectively. Vase life of the flowers was increased at least 30% in the assay without inoculation and 20% in the assay with inoculation. Spraying roses with calcium sulfate at 10 mM or 20 mM one day before harvest is recommended to control gray mold after harvest.
650 $acalcium
650 $aBotrytis Cinerea
650 $aDoença de Planta
650 $aPós-Colheita
653 $aControle de doenças
653 $aRosa hybrida
700 1 $aMAFFIA, L. A.
700 1 $aFINGER, F. L.
700 1 $aBATISTA, U. G.
773 $tScientia Horticulturae$gv. 103, n. 3, p. 329-338, 2005.
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Registro original: |
Embrapa Recursos Genéticos e Biotecnologia (CENARGEN) |
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Registro Completo
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Biblioteca(s): |
Embrapa Clima Temperado. |
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Data corrente: |
21/02/2014 |
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Data da última atualização: |
06/02/2015 |
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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: |
BUSTAMANTE, F. O.; ROCHA, L. C.; TORRES, G. A.; DAVIDE, L. C.; MITTELMANN, A. |
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Afiliação: |
Fernanda O. Bustamante; Laiane C. Rocha; Giovana A. Torres; Lisete C. Davide; ANDREA MITTELMANN, CNPGL. |
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Título: |
Distribution of rDNA in Diploid and Polyploid Lolium multiflorum Lam. and Fragile Sites in 45S rDNA Regions. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Crop Science, v. 54, p. 1-9, 2014. |
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Idioma: |
Inglês |
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Conteúdo: |
The distribution, number, and location of ribosome DNA (rDNA) regions on chromosomes were evaluated, and transcriptional activity was described in genotypes of Italian ryegrass (Lolium multiflorum Lam.), as well as in an offspring resulting from interbreeding. Nucleoli and nucleolar organizer regions were labeled with silver nitrate and fluorescent in situ hybridization (FISH) was performed with 5S and 45S rDNA as probes. Hybridization procedures were performed on slides previously stained with the Ag-NOR method. The 5S rDNA sites were highly conserved, while 45S rDNA sites had wide variability, even showing more than one site on the same chromosome. One of the genotypes had more than expected 45S rDNA sites. Approximately 95% of the cells at metaphases had at least one chromosome break/gap in the 45S rDNA site, resulting in chromosome fragmentation. Thus, 45S rDNA correspond to fragile sites in L. multiflorum. These events can affect genome organization and cause new chromosomal rearrangements which, along with some other factors, might be responsible for microevolutionary changes involved in differentiation and speciation. Not all 45S rDNA sites are transcriptionally active. Variation in both the number and size of nucleoli and mechanisms of nucleolar fusion were observed in L. multiflorum. |
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Thesagro: |
DNA. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01846naa a2200181 a 4500
001 1980839
005 2015-02-06
008 2014 bl uuuu u00u1 u #d
100 1 $aBUSTAMANTE, F. O.
245 $aDistribution of rDNA in Diploid and Polyploid Lolium multiflorum Lam. and Fragile Sites in 45S rDNA Regions.$h[electronic resource]
260 $c2014
520 $aThe distribution, number, and location of ribosome DNA (rDNA) regions on chromosomes were evaluated, and transcriptional activity was described in genotypes of Italian ryegrass (Lolium multiflorum Lam.), as well as in an offspring resulting from interbreeding. Nucleoli and nucleolar organizer regions were labeled with silver nitrate and fluorescent in situ hybridization (FISH) was performed with 5S and 45S rDNA as probes. Hybridization procedures were performed on slides previously stained with the Ag-NOR method. The 5S rDNA sites were highly conserved, while 45S rDNA sites had wide variability, even showing more than one site on the same chromosome. One of the genotypes had more than expected 45S rDNA sites. Approximately 95% of the cells at metaphases had at least one chromosome break/gap in the 45S rDNA site, resulting in chromosome fragmentation. Thus, 45S rDNA correspond to fragile sites in L. multiflorum. These events can affect genome organization and cause new chromosomal rearrangements which, along with some other factors, might be responsible for microevolutionary changes involved in differentiation and speciation. Not all 45S rDNA sites are transcriptionally active. Variation in both the number and size of nucleoli and mechanisms of nucleolar fusion were observed in L. multiflorum.
650 $aDNA
700 1 $aROCHA, L. C.
700 1 $aTORRES, G. A.
700 1 $aDAVIDE, L. C.
700 1 $aMITTELMANN, A.
773 $tCrop Science$gv. 54, p. 1-9, 2014.
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