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| Registros recuperados : 205 | |
| 181. |  | HALFELD-VIEIRA, B. de A.; VIEIRA JÚNIOR, J. R.; ROMEIRO, R. da S.; SILVA, H. S. A.; BARACT-PEREIRA, M.C. Induction of systemic resistance in tomato by the autochthonous phylloplane resident Bacillus cereus. Pesquisa Agropecuária Brasileira, Brasília, v.41, n. 8, p.1247-1252, ago. 2006.| Biblioteca(s): Embrapa Rondônia; Embrapa Unidades Centrais. |
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| 182. | | SILVA JUNIOR, R. J. da; HALFELD-VIEIRA, B. de A.; NECHET, K. de L.; MARSARO JÚNIOR, A. L.; ABREU, R. L. S. de; RONCHI-TELES, B. Infecção de frutos de cupuaçu, Theobroma grandiflorum pelo fungo lasiodiplodia theobromae não depende de injúria causada por xyleborus affinis (coleoptera: scolytidae). In: CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 23., 2010, Natal. Anais... Natal: Sociedade Brasileira de Entomologia, 2010. não paginado.| Biblioteca(s): Embrapa Roraima. |
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| 184. | | TERAO, D.; NECHET, K. de L.; FRIGHETTO, R. T. S.; ANJOS, V. D. A.; MAIA, A. de H. N.; HALFELD-VIEIRA, B. de A. Control of Fusarium rot in Galia melon and preservation of fruit quality with UV-C radiation and hot water treatments. Tropical Plant Pathology, v. 46, n. 3, p. 350-359, 2021.| Biblioteca(s): Embrapa Meio Ambiente. |
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| 185. | | NECHET, K. de L.; HALFELD-VIEIRA, B. de A.; PEREIRA, P. R. V. da S.; MOURÃO JÚNIOR, M. M.; SILVA, M. A. S. da. Produção de híbridos comerciais de pimentão (Capsicum annuum) em cultivo protegido no Estado de Roraima. Horticultura Brasileira, Brasília, v. 22, n. 2, jul. 2004. Suplemento 2. Trabalho apresentado no 44º Congresso Brasileiro de Olericultura, 2004. Publicado também como resumo em: Horticultura Brasileira, Brasília, v. 22, n. 2, p. 472, jul. 2004. Suplemento.| Biblioteca(s): Embrapa Hortaliças. |
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| 186. | | FUJINAWA, M. F.; SANTOS, N. F. dos; PONTES, N. C.; GOES, A. de; MORANDI, M. A. B.; HALFELD-VIEIRA, B. de A. Primeiro relato de Myrothecium sp. causando mancha foliar em begônia no Brasil. In: Tropical Plant Pathology, v. 37, supl. resumo 249 - Micologia, 2012. Edição dos resumos do 45º Congresso Brasileiro de Fitopatologia, 2012, Manaus/AM.| Biblioteca(s): Embrapa Meio Ambiente. |
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| 188. | | MACEDO, P. E. F. de; SIVIERO, A.; MOREIRA, G. T. S.; HALFELD-VIEIRA, B. de A.; COELHO, R. M. S.; NECHET, K. de L. Queima do fio da mandioca: uma nova doença na cultura. In: CONGRESSO BRASILEIRO DE FITOPATOLOGIA, 51., 2109, Recife. Os avanços da Fitopatologia na Era Genômica: anais. Recife: SBF: UFPRE/PPGF, 2019. p. 452.| Biblioteca(s): Embrapa Acre; Embrapa Meio Ambiente. |
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| 190. | | SILVA, R.; NECHET, K. de L.; MORIYA, L. M.; CARVALHO, V. N.; BIAFORA, M. R.; SOUZA, D. E. H. de; HALFELD-VIEIRA, B. de A. Etiology and prevalence of macadamia diseases in Brazil. Australasian Plant Pathology v, n., p., 2024.| Biblioteca(s): Embrapa Meio Ambiente. |
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| 191. | | OLIVEIRA, L. C. de; NAKASONE, A. K.; LACERDA, L.; NECHET, K. de L.; LEMOS, W. de P.; MARINHO, A. M. do R.; HALFELD-VIEIRA, B. de A. Bactérias endofíticas e a promoção de crescimento de plantas de pimenta-do-reino. Research, Society and Development, v. 9, n. 11, e2909119818, 2020.| Biblioteca(s): Embrapa Amazônia Oriental; Embrapa Meio Ambiente. |
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| 195. | | LIMA, H. E. de; NECHET, K. de L.; HALFELD-VIEIRA, B. de A.; OLIVEIRA, J. R. de; DUARTE, H. da S. S.; QUEIROZ, E. de S.; OLIVEIRAM F. de L. Elaboração e validação de escalas diagramáticas para avaliação da severidade da mancha-bacteriana do feijão-caupi em cultivares com trifólios morfologicamente distintos. Ciência Rural, Santa Maria, v.43, n. 10, p. 1735-1743, 2013.| Biblioteca(s): Embrapa Roraima. |
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| 196. | | LIMA, H. E. de; NECHET, K. de L.; HALFELD-VIEIRA, B. de A.; OLIVEIRA, J. R. de; DUARTE, H. da S. S.; QUEIROZ, E. de S.; OLIVEIRAM F. de L. Elaboração e validação de escalas diagramáticas para avaliação da severidade da mancha-bacteriana do feijão-caupi em cultivares com trifólios morfologicamente distintos. Ciência Rural, Santa Maria, v. 43, n. 10, p. 1735-1743, 2013.| Biblioteca(s): Embrapa Meio Ambiente. |
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| 197. | | CARVALHO, A. L. de A.; REZENDE, L. C. de; COSTA, L. B.; HALFELD-VIEIRA, B. de A.; PINTO, Z. V.; MORANDI, M. A. B.; MEDEIROS, F. H. V.; BETTIOL, W. Optimizing the mass production of Clonostachys rosea by liquid-state fermentation. Biological Control, v. 118, p. 16-25, 2018.| Biblioteca(s): Embrapa Meio Ambiente. |
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| 198. | | REZENDE, L. C. de; CARVALHO, A. L. de A.; COSTA, L. B.; HALFELD-VIEIRA, B. de A.; SILVA, L. G.; PINTO. Z. V.; MORANDI, M. A. B.; MEDEIROS, F. H. V. de; MASCARIN, G. M.; BETTIOL, W. Optimizing mass production of Trichoderma asperelloides by submerged liquid fermentation and its antagonism against Sclerotinia sclerotiorum. World Journal of Microbiology & Biotechnology, v. 36, n. 8, article 113, 2020.| Biblioteca(s): Embrapa Meio Ambiente. |
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| 199. | | MELO, M. P. de; CABRAL, C. S.; REIS, A.; MATOS, K. S.; MARTINS, P. P.; BESERRA JÚNIOR, J. E. A.; NECHET, K. de L.; HALFELD-VIEIRA, B. de A. Rhizoctonia solani AG 1-IB and AG 4 HG-I causing leaf blight and root rot in plants from the Lamiaceae family in Brazil. Tropical Plant Pathology, v. 43, n. 2, p. 152-159, Apr. 2018.| Biblioteca(s): Embrapa Hortaliças; Embrapa Meio Ambiente. |
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| 200. | | BARRA, V. R.; SILVA, R. da; FERRAZ, H. G. M.; MACAGNAN, D.; SILVA, H. S. A.; MOURA, A. B.; HALFELD-VIEIRA, B. de A.; MENDONÇA, H. L.; VIEIRA JÚNIOR, J. R. Potencialidade antagonística detectada em alguns procariotas agentes de biocontrole de enfermidades de plantas. Summa Phitopapathologica, Botucatu, v. 34, n. 2, p. 121-126, 2008.| Biblioteca(s): Embrapa Rondônia; Embrapa Roraima. |
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| Registros recuperados : 205 | |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Roraima. Para informações adicionais entre em contato com cpafrr.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Meio Ambiente; Embrapa Roraima. |
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Data corrente: |
16/05/2019 |
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Data da última atualização: |
22/11/2019 |
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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: |
LIMA, H. E. de; HALFELD-VIEIRA, B. de A.; NECHET, K. de L.; SOUZA, G. R. de; MIZUBUTI, E. S. G.; OLIVEIRA, J. R. de. |
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Afiliação: |
HYANAMEYKA EVANGELISTA DE L PRIMO, CPAF-RR; BERNARDO DE ALMEIDA HALFELD VIEIRA, CNPMA; KATIA DE LIMA NECHET, CNPMA; GIOVANNI RIBEIRO DE SOUZA, CPAF-RR. |
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Título: |
Influence of Bacterial Blight on different phenological stages of cowpea. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Scientia Horticulturae, v. 255, p. 44-51, 2019. |
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Idioma: |
Inglês
Português |
|
Conteúdo: |
Abstract: The cowpea bacterial blight is a common disease, but some of its epidemiological parameters have not been totally elucidated. The objective of this study was to determine the influence of the inoculation of the bacterial blight pathogen (Xanthomonas citri pv. vignicola - Xcv) at different phenological stages of the cowpea, as well the effect on its yield components, and the transmission of the bacterium to the seed. Under greenhouse conditions, plant defoliation was observed on the cowpea cultivar BRS Bragança inoculated with 107 CFU of Xcv/mL at the four phenological stages, - VC (plants with primary leaves at nodes 1 & 2), V3 (3rd trifoliolate leaf unfolded at node 5), R2 (50–100% of open flowers), and R3 (one pod at maximum lenght). There was a difference in the relative area under the disease progress curve (RAUDPC) between the phenological stages and the reduction of some production components, such as dry seed mass. The pathogen was isolated from seeds produced in infected plants in all phenological stage, with the highest values ??of CFU per gram of seeds in the V3 and R3. Under field conditions, two experiments were conducted using the cv. BRS Vita-7 (resistant) and cv. BRS Bragança (susceptible) inoculated with Xcv at the V3 and R2. The disease was more severe in cv. BRS Bragança, with the RAUDPC being higher in plants inoculated at V3 with a reduction of dry seed mass in inoculated R2 and inoculated R3 when compared to their uninoculated counterparts across two growing seasons. Regardless of the phenological stage in which the plant was inoculated, it was possible to detect Xcv in cv. BRS Bragança and cv. BRS Vita-7 seeds. The highest values of CFU per gram were recorded in samples from cv. BRS Bragança inoculated at V3 stage. Results on the presence cowpea's seeds infected by Xcv show that bacterial blight disease is highly seed transmitted and demonstrate the current need to avoid additional spread of the pathogen to new areas where there are favorable climatic conditions in Brazil or to disease-free countries that can result in considerable losses. Thus, the disease management should be used based on seed certification programmes, realizing sanitary tests of cowpea seed to avoid the spread of Xcv and the maintenance of disease-free seed stocks. MenosAbstract: The cowpea bacterial blight is a common disease, but some of its epidemiological parameters have not been totally elucidated. The objective of this study was to determine the influence of the inoculation of the bacterial blight pathogen (Xanthomonas citri pv. vignicola - Xcv) at different phenological stages of the cowpea, as well the effect on its yield components, and the transmission of the bacterium to the seed. Under greenhouse conditions, plant defoliation was observed on the cowpea cultivar BRS Bragança inoculated with 107 CFU of Xcv/mL at the four phenological stages, - VC (plants with primary leaves at nodes 1 & 2), V3 (3rd trifoliolate leaf unfolded at node 5), R2 (50–100% of open flowers), and R3 (one pod at maximum lenght). There was a difference in the relative area under the disease progress curve (RAUDPC) between the phenological stages and the reduction of some production components, such as dry seed mass. The pathogen was isolated from seeds produced in infected plants in all phenological stage, with the highest values ??of CFU per gram of seeds in the V3 and R3. Under field conditions, two experiments were conducted using the cv. BRS Vita-7 (resistant) and cv. BRS Bragança (susceptible) inoculated with Xcv at the V3 and R2. The disease was more severe in cv. BRS Bragança, with the RAUDPC being higher in plants inoculated at V3 with a reduction of dry seed mass in inoculated R2 and inoculated R3 when compared to their uninoculated counterparts acro... Mostrar Tudo |
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Palavras-Chave: |
Bacterial blight. |
|
Thesagro: |
Doença de Planta; Feijão de Corda; Vigna Unguiculata; Xanthomonas Citri. |
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Thesaurus NAL: |
Bacterial diseases of plants; Cowpeas; Disease transmission. |
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Categoria do assunto: |
--
H Saúde e Patologia |
|
Marc: |
LEADER 03132naa a2200277 a 4500
001 2109056
005 2019-11-22
008 2019 bl uuuu u00u1 u #d
100 1 $aLIMA, H. E. de
245 $aInfluence of Bacterial Blight on different phenological stages of cowpea.$h[electronic resource]
260 $c2019
520 $aAbstract: The cowpea bacterial blight is a common disease, but some of its epidemiological parameters have not been totally elucidated. The objective of this study was to determine the influence of the inoculation of the bacterial blight pathogen (Xanthomonas citri pv. vignicola - Xcv) at different phenological stages of the cowpea, as well the effect on its yield components, and the transmission of the bacterium to the seed. Under greenhouse conditions, plant defoliation was observed on the cowpea cultivar BRS Bragança inoculated with 107 CFU of Xcv/mL at the four phenological stages, - VC (plants with primary leaves at nodes 1 & 2), V3 (3rd trifoliolate leaf unfolded at node 5), R2 (50–100% of open flowers), and R3 (one pod at maximum lenght). There was a difference in the relative area under the disease progress curve (RAUDPC) between the phenological stages and the reduction of some production components, such as dry seed mass. The pathogen was isolated from seeds produced in infected plants in all phenological stage, with the highest values ??of CFU per gram of seeds in the V3 and R3. Under field conditions, two experiments were conducted using the cv. BRS Vita-7 (resistant) and cv. BRS Bragança (susceptible) inoculated with Xcv at the V3 and R2. The disease was more severe in cv. BRS Bragança, with the RAUDPC being higher in plants inoculated at V3 with a reduction of dry seed mass in inoculated R2 and inoculated R3 when compared to their uninoculated counterparts across two growing seasons. Regardless of the phenological stage in which the plant was inoculated, it was possible to detect Xcv in cv. BRS Bragança and cv. BRS Vita-7 seeds. The highest values of CFU per gram were recorded in samples from cv. BRS Bragança inoculated at V3 stage. Results on the presence cowpea's seeds infected by Xcv show that bacterial blight disease is highly seed transmitted and demonstrate the current need to avoid additional spread of the pathogen to new areas where there are favorable climatic conditions in Brazil or to disease-free countries that can result in considerable losses. Thus, the disease management should be used based on seed certification programmes, realizing sanitary tests of cowpea seed to avoid the spread of Xcv and the maintenance of disease-free seed stocks.
650 $aBacterial diseases of plants
650 $aCowpeas
650 $aDisease transmission
650 $aDoença de Planta
650 $aFeijão de Corda
650 $aVigna Unguiculata
650 $aXanthomonas Citri
653 $aBacterial blight
700 1 $aHALFELD-VIEIRA, B. de A.
700 1 $aNECHET, K. de L.
700 1 $aSOUZA, G. R. de
700 1 $aMIZUBUTI, E. S. G.
700 1 $aOLIVEIRA, J. R. de
773 $tScientia Horticulturae$gv. 255, p. 44-51, 2019.
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