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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
04/11/2022 |
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Data da última atualização: |
04/11/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MAMEDES, T. C.; CHAIBUB, A. A.; SOUSA, K. C. I.; FARIA, M. T.; GONÇALVES, L. de A.; FILIPPI, M. C. C. de; ARAÚJO, L. G. de; SIBOV, S. T. |
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Afiliação: |
TALITA CRISTINA MAMEDES, UNIVERSIDADE FEDERAL DE GOIÁS; AMANDA ABDALLAH CHAIBUB, UNIVERSIDADE FEDERAL DE GOIÁS; KELLEN CRISTHINA INÁCIO SOUSA, UNIVERSIDADE FEDERAL DE GOIÁS; MARIA TEREZA FARIA, UNIVERSIDADE FEDERAL DE GOIÁS; LETÍCIA DE ALMEIDA GONÇALVES, UNIVERSIDADE FEDERAL DE GOIÁS; MARTA CRISTINA CORSI DE FILIPPI, CNPAF; LEILA GARCÊS DE ARAÚJO, UNIVERSIDADE FEDERAL DE GOIÁS; SÉRGIO TADEU SIBOV, UNIVERSIDADE FEDERAL DE GOIÁS. |
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Título: |
Seed pretreatment for control of powdery mildew infection on purple ipe micropropagation. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Ornamental Horticulture, v. 28, n. 2, p. 193-201, 2022. |
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ISSN: |
2447-536X |
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Idioma: |
Inglês |
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Conteúdo: |
Purple ipe (Handroanthus impetiginosus) is an important tree species in Cerrado biome conservation and very popular at the landscaping and urban afforestation. However, its micropropagation is affected by pathogens, such as Oidium sp. The aim this study was evaluate the efficiency of seed treatments in the control of powdery mildew of purple ipe obtained by micropropagation. The symptoms were observed during in vitro germination, a Koch?s postulates were performed for confirm the pathogenicity, colonization of the pathogen on the leaves was analyzed in optical and scanning microscopes and a scale to evaluate severity was proposed. Two experiments were realized to powdery mildew control using a completely randomized design, with 30 replicates. First experiment: Seeds were treated with ethanol (Et), chlorothalonil + thiophanate-methyl (C+TM), and sodium hypochlorite (NaOCl); second experiment: Seeds were treated with Et, NaOCl, C+TM, and neem oil. Disease severity and area under the disease progress curve (AUDPC) were assessed in both experiments. Disease symptoms and typical pathogen structures were observed, and the pathogenicity was confirmed. The disease severity was reduced by 30.78% in 1.5% neem oil for 10 min when compared with C+TM for 15 min. We conclude that neem oil can be a strategy sustainable for the control of powdery mildew in purple ipe in tissue culture. |
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Palavras-Chave: |
Controle alternativo. |
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Thesagro: |
Cultura de Tecido; Fungicida; Ipê Roxo; Nim. |
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Thesaurus Nal: |
Fungicides; Handroanthus impetiginosus; Neem oil; Tissue culture. |
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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/1148054/1/oa-2022.pdf
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Marc: |
LEADER 02308naa a2200325 a 4500
001 2148054
005 2022-11-04
008 2022 bl uuuu u00u1 u #d
022 $a2447-536X
100 1 $aMAMEDES, T. C.
245 $aSeed pretreatment for control of powdery mildew infection on purple ipe micropropagation.$h[electronic resource]
260 $c2022
520 $aPurple ipe (Handroanthus impetiginosus) is an important tree species in Cerrado biome conservation and very popular at the landscaping and urban afforestation. However, its micropropagation is affected by pathogens, such as Oidium sp. The aim this study was evaluate the efficiency of seed treatments in the control of powdery mildew of purple ipe obtained by micropropagation. The symptoms were observed during in vitro germination, a Koch?s postulates were performed for confirm the pathogenicity, colonization of the pathogen on the leaves was analyzed in optical and scanning microscopes and a scale to evaluate severity was proposed. Two experiments were realized to powdery mildew control using a completely randomized design, with 30 replicates. First experiment: Seeds were treated with ethanol (Et), chlorothalonil + thiophanate-methyl (C+TM), and sodium hypochlorite (NaOCl); second experiment: Seeds were treated with Et, NaOCl, C+TM, and neem oil. Disease severity and area under the disease progress curve (AUDPC) were assessed in both experiments. Disease symptoms and typical pathogen structures were observed, and the pathogenicity was confirmed. The disease severity was reduced by 30.78% in 1.5% neem oil for 10 min when compared with C+TM for 15 min. We conclude that neem oil can be a strategy sustainable for the control of powdery mildew in purple ipe in tissue culture.
650 $aFungicides
650 $aHandroanthus impetiginosus
650 $aNeem oil
650 $aTissue culture
650 $aCultura de Tecido
650 $aFungicida
650 $aIpê Roxo
650 $aNim
653 $aControle alternativo
700 1 $aCHAIBUB, A. A.
700 1 $aSOUSA, K. C. I.
700 1 $aFARIA, M. T.
700 1 $aGONÇALVES, L. de A.
700 1 $aFILIPPI, M. C. C. de
700 1 $aARAÚJO, L. G. de
700 1 $aSIBOV, S. T.
773 $tOrnamental Horticulture$gv. 28, n. 2, p. 193-201, 2022.
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Embrapa Arroz e Feijão (CNPAF) |
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| 1. |  | MAMEDES, T. C.; CHAIBUB, A. A.; SOUSA, K. C. I.; FARIA, M. T.; GONÇALVES, L. de A.; FILIPPI, M. C. C. de; ARAÚJO, L. G. de; SIBOV, S. T. Seed pretreatment for control of powdery mildew infection on purple ipe micropropagation. Ornamental Horticulture, v. 28, n. 2, p. 193-201, 2022.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 3 |
| Biblioteca(s): Embrapa Arroz e Feijão. |
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