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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
20/09/2018 |
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Data da última atualização: |
28/09/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SANTIAGO, C, H.; SANTANA, M. P.; CAIRO JUNIOR, L. R.; OLIVEIRA, S. A. S. de; OLIVEIRA, E. J. de. |
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Afiliação: |
CAMILA HOHENFELD SANTIAGO, UFRB; MARIANA PEREIRA SANTANA, UFRB; LUIZ RODRIGUEZ CAIRO JUNIOR, UFRB; SAULO ALVES SANTOS DE OLIVEIRA, CNPMF; EDER JORGE DE OLIVEIRA, CNPMF. |
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Título: |
Methodologies for selecting cassava with resistance to dry and black root rot under controlled conditions. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Bragantia, Campinas, v. 77, n. 3, p.440-451, 2018. |
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Idioma: |
Inglês |
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Conteúdo: |
Cassava root rot diseases such as dry and black root rot are listed among the major threats, since its affect the main product (tuberous roots), causing a progressive decline in yield and affecting subsequent crop cycles, being the use of resistant varieties the most reliable control measure on field level. The objective of this study was to identify inoculation methods for the early evaluation of genotypes, considering the level of resistance to dry (DRR) and black (BRR) root rot diseases. Different methodologies and plant tissues were evaluated, based on the immersion of cassava tissues (roots and stem cuttings), soil infestation, and inoculation of detached tissues (leaves, tuberous roots and stem cuttings). The following parameters were evaluated for inoculations based on tissue immersion: disease index (ω); aerial part weight (g); fresh weight of the roots (g); and volume (cm3). For the inoculations on detached tissues, the percentage of lesioned area was determined. Immersion methods for roots and lesioned stems did not show typical symptoms of DRR and BRR during the two-month evaluation period. The soil infestation method did not differ from the stem immersion method as to the reduction of aerial part weight and the disease index, whereas both can be recommended for resistance selection trials. There was a positive correlation between the BRR and DRR data for the stem inoculation (r = 0.94, p = 0.001) and for DRR in the peel and root pulp (r = 0.73, p = 0.05). Therefore, the resistance within each tissue is apparently independent and should be compared with the behavior of the genotypes in the field. MenosCassava root rot diseases such as dry and black root rot are listed among the major threats, since its affect the main product (tuberous roots), causing a progressive decline in yield and affecting subsequent crop cycles, being the use of resistant varieties the most reliable control measure on field level. The objective of this study was to identify inoculation methods for the early evaluation of genotypes, considering the level of resistance to dry (DRR) and black (BRR) root rot diseases. Different methodologies and plant tissues were evaluated, based on the immersion of cassava tissues (roots and stem cuttings), soil infestation, and inoculation of detached tissues (leaves, tuberous roots and stem cuttings). The following parameters were evaluated for inoculations based on tissue immersion: disease index (ω); aerial part weight (g); fresh weight of the roots (g); and volume (cm3). For the inoculations on detached tissues, the percentage of lesioned area was determined. Immersion methods for roots and lesioned stems did not show typical symptoms of DRR and BRR during the two-month evaluation period. The soil infestation method did not differ from the stem immersion method as to the reduction of aerial part weight and the disease index, whereas both can be recommended for resistance selection trials. There was a positive correlation between the BRR and DRR data for the stem inoculation (r = 0.94, p = 0.001) and for DRR in the peel and root pulp (r = 0.73, p = 0.05). Th... Mostrar Tudo |
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Thesagro: |
Doença de Planta; Mandioca; Manihot Esculenta. |
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Thesaurus Nal: |
Cassava; Inoculation methods; Neoscytalidium; Root diseases. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/183295/1/Methodologies-for-selecting.pdf
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Marc: |
LEADER 02398naa a2200253 a 4500
001 2096094
005 2018-09-28
008 2018 bl uuuu u00u1 u #d
100 1 $aSANTIAGO, C, H.
245 $aMethodologies for selecting cassava with resistance to dry and black root rot under controlled conditions.$h[electronic resource]
260 $c2018
520 $aCassava root rot diseases such as dry and black root rot are listed among the major threats, since its affect the main product (tuberous roots), causing a progressive decline in yield and affecting subsequent crop cycles, being the use of resistant varieties the most reliable control measure on field level. The objective of this study was to identify inoculation methods for the early evaluation of genotypes, considering the level of resistance to dry (DRR) and black (BRR) root rot diseases. Different methodologies and plant tissues were evaluated, based on the immersion of cassava tissues (roots and stem cuttings), soil infestation, and inoculation of detached tissues (leaves, tuberous roots and stem cuttings). The following parameters were evaluated for inoculations based on tissue immersion: disease index (ω); aerial part weight (g); fresh weight of the roots (g); and volume (cm3). For the inoculations on detached tissues, the percentage of lesioned area was determined. Immersion methods for roots and lesioned stems did not show typical symptoms of DRR and BRR during the two-month evaluation period. The soil infestation method did not differ from the stem immersion method as to the reduction of aerial part weight and the disease index, whereas both can be recommended for resistance selection trials. There was a positive correlation between the BRR and DRR data for the stem inoculation (r = 0.94, p = 0.001) and for DRR in the peel and root pulp (r = 0.73, p = 0.05). Therefore, the resistance within each tissue is apparently independent and should be compared with the behavior of the genotypes in the field.
650 $aCassava
650 $aInoculation methods
650 $aNeoscytalidium
650 $aRoot diseases
650 $aDoença de Planta
650 $aMandioca
650 $aManihot Esculenta
700 1 $aSANTANA, M. P.
700 1 $aCAIRO JUNIOR, L. R.
700 1 $aOLIVEIRA, S. A. S. de
700 1 $aOLIVEIRA, E. J. de
773 $tBragantia, Campinas$gv. 77, n. 3, p.440-451, 2018.
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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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| Registros recuperados : 453 | |
| 142. |  | ALVES, L. B.; ALBUQUERQUE, H. Y. G. de; CARMO, C. D. do; BRITO, A. C.; OLIVEIRA, E. J. de. Identificação molecular de duplicatas de acessos de mandioca com uso de marcadores SNP pertencentes ao cromossomo 1. In: JORNADA CIENTÍFICA EMBRAPA MANDIOCA E FRUTICULTURA, 10., 2016: Cruz das Almas, BA. Traduzindo ciência para o mundo : resumos. Brasília, DF : Embrapa, 2016.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 149. | | SANTOS, C. H. B.; OLIVEIRA, E. J. de; BARBOSA, F. F. L.; JESUS, O. N. de; GIRARDI, E. A. Growth, fruit set, and fusariosis reaction of yellow passion fruit grafted onto passiflora spp. Revista Brasileira de Fruticultura, Jaboticabal - SP, v. 38, n. 3 May/June, 2016.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 155. | | MOTTA, T. B. N.; OLIVEIRA, E. J. de; LUCENA, R. S.; MACHADO, M. D.; LIMA, D. S. de. Caracterização de germoplasma de maracujazeiro para qualidade de frutos. In: CONGRESSO BRASILEIRO DE FRUTICULTURA, 20.; ANNUAL MEETING OF THE INTERAMERICAN SOCIETY FOR TROPICAL HORTICULTURE, 54., 2008, Vitória. Frutas para todos: estratégias, tecnologias e visão sustentável: anais. Vitória: INCAPER: Sociedade Brasileira de Fruticultura, 2008.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 158. | | SANTANA, F. A.; OLIVEIRA, E. J. de; OLIVEIRA, L. A. de; SANTOS, A. de O.; AMORIM, T. da S. Caracterização do conteúdo de compostos cianogênicos em diferentes acessos de mandioca. In: REUNIÃO ANUAL DE CIÊNCIA, TECNOLOGIA, INOVAÇÃO E CULTURA NO RECÔNCAVO DA BAHIA - RECONCITEC, 2., 2012, Cruz das Almas. Energias Renováveis, Educação, Tecnologia e Sociedade. Cruz das Almas, BA: UFRB, 2012.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 159. | | FALEIRO, F. G.; OLIVEIRA, E. J. de; ANDRADE, S. R. M. de; COSTA, A. M.; JUNQUEIRA, N. T. V. Biotecnologia aplicada ao maracujazeiro. In: MORERA, M. P.; COSTA, A. M.; FALEIRO, F. G.; CARLOSAMA, A. R.; CARRANZA, C. Maracujá: dos recursos genéticos ao desenvolvimento tecnológico. Brasília, DF: Proimpress, 2018. p. 97-10| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Cerrados. |
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| 160. | | FALEIRO, F. G.; OLIVEIRA, E. J. de; ANDRADE, S. R. M. de; COSTA, A. M.; JUNQUEIRA, N. T. V. Biotecnología aplicada a las Pasifloras. MORERA, M. P.; COSTA, A. M.; FALEIRO, F. G.; CARLOSAMA, A. R.; CARRANZA, C. (Ed.). Maracuyá: de los recursos genéticos al desarollo tecnológico. Brasília, DF: Proimpress, 2018. p. 97-110.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Cerrados. |
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| Registros recuperados : 453 | |
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