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Registro Completo |
Biblioteca(s): |
Embrapa Arroz e Feijão. |
Data corrente: |
04/11/2022 |
Data da última atualização: |
04/11/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
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. |
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. |
Título: |
Seed pretreatment for control of powdery mildew infection on purple ipe micropropagation. |
Ano de publicação: |
2022 |
Fonte/Imprenta: |
Ornamental Horticulture, v. 28, n. 2, p. 193-201, 2022. |
ISSN: |
2447-536X |
Idioma: |
Inglês |
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. |
Palavras-Chave: |
Controle alternativo. |
Thesagro: |
Cultura de Tecido; Fungicida; Ipê Roxo; Nim. |
Thesaurus Nal: |
Fungicides; Handroanthus impetiginosus; Neem oil; Tissue culture. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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Biblioteca(s): |
Embrapa Amazônia Ocidental. |
Data corrente: |
19/03/2010 |
Data da última atualização: |
07/12/2018 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
B - 1 |
Autoria: |
MORAES, M. F.; REIS, A. R.; MORAES, L. A. C.; LAVRES-JUNIOR, J.; VIVIAN, R.; CABRAL, C. P.; MALAVOLTA, E. |
Afiliação: |
Milton Ferreira Moraes, CENA/USP; André Rodrigues Reis, CENA/USP; LARISSA ALEXANDRA CARDOSO MORAES, CPAA; José Lavres-Junior, CENA/USP; Rafael Vivian, USP; Cleusa Pereira Cabral, CENA/USP; Eurípedes Malavolta, CENA/USP. |
Título: |
Effects of molybdenum, nickel, and nitrogen sources on the mineral nutrition and growth of rice plants. |
Ano de publicação: |
2009 |
Fonte/Imprenta: |
Communications in Soil Science and Plant Analysis, v. 40, p. 3238-3251, 2009. |
Idioma: |
Inglês |
Conteúdo: |
The aims of the current work were to measure the effect of Mo and Ni on dry-matter yield of rice plants supplied with two N sources (ammonium nitrate and urea) and to evaluate the influence of Mo and Ni on variables related to dry-matter yield, such as activity of both urease and nitrate reductase, chlorophyll, net photosynthesis rate, total N, nitrate content, and Mo and Ni concentrations in roots and shoots. |
Palavras-Chave: |
Micronutrientes. |
Thesagro: |
Arroz; Nutrição Vegetal. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/187950/1/S8715.pdf
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Marc: |
LEADER 01088naa a2200229 a 4500 001 1667363 005 2018-12-07 008 2009 bl uuuu u00u1 u #d 100 1 $aMORAES, M. F. 245 $aEffects of molybdenum, nickel, and nitrogen sources on the mineral nutrition and growth of rice plants. 260 $c2009 520 $aThe aims of the current work were to measure the effect of Mo and Ni on dry-matter yield of rice plants supplied with two N sources (ammonium nitrate and urea) and to evaluate the influence of Mo and Ni on variables related to dry-matter yield, such as activity of both urease and nitrate reductase, chlorophyll, net photosynthesis rate, total N, nitrate content, and Mo and Ni concentrations in roots and shoots. 650 $aArroz 650 $aNutrição Vegetal 653 $aMicronutrientes 700 1 $aREIS, A. R. 700 1 $aMORAES, L. A. C. 700 1 $aLAVRES-JUNIOR, J. 700 1 $aVIVIAN, R. 700 1 $aCABRAL, C. P. 700 1 $aMALAVOLTA, E. 773 $tCommunications in Soil Science and Plant Analysis$gv. 40, p. 3238-3251, 2009.
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Embrapa Amazônia Ocidental (CPAA) |
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