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| Registros recuperados: 255 | |
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| Santos, Weverton Ferreira; Procópio, Sérgio de Oliveira; Silva, Alessandro Guerra da; Fernandes, Marcelo Ferreira; Santos, Eduardo Ribeiro dos. |
| Roundup Ready® technology adoption and the cultivation of a second crop have changed chemical control methods and weed management in the southwest region of Goiás State, Brazil. Considering these changes, this study aimed to perform a phytosociological survey in areas with glyphosate resistant soybeans and conventional soybeans as the main harvest and sorghum, maize, millet or fallow in succession as the second harvest. A multivariate matrix of the floristic composition was constructed, and the indicator values of the individual number and dry biomass of species were measured. Based on the number of individuals, the species Chamaesyce hirta, Bidens subalternans, and Cissampelos ovolifolia were typical of areas cultivated with glyphosate-resistant soybean,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Soybean; Second crop; Crop succession; Resistance; Herbicide.; Fitotecnia. |
| Ano: 2018 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/33049 |
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| Santos, Weverton Ferreira; Procópio, Sérgio de Oliveira; Silva, Alessandro Guerra da; Fernandes, Marcelo Ferreira; Santos, Eduardo Ribeiro dos. |
| Roundup Ready® technology adoption and the cultivation of a second crop have changed chemical control methods and weed management in the southwest region of Goiás State, Brazil. Considering these changes, this study aimed to perform a phytosociological survey in areas with glyphosate resistant soybeans and conventional soybeans as the main harvest and sorghum, maize, millet or fallow in succession as the second harvest. A multivariate matrix of the floristic composition was constructed, and the indicator values of the individual number and dry biomass of species were measured. Based on the number of individuals, the species Chamaesyce hirta, Bidens subalternans, and Cissampelos ovolifolia were typical of areas cultivated with glyphosate-resistant soybean,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ciências Agrárias - Agronomia soybean; Second crop; Crop succession; Resistance; Herbicide. Fitotecnia. |
| Ano: 2018 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/33049 |
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| Neves-Junior,Athayde; Cartágenes-Pinto,Ana Carolina; Rocha,Débora A.S.; Sá,Leandro F. Reis de; Junqueira,Maria de Lourdes; Ferreira-Pereira,Antonio. |
| Candidiasis has become an important concern for clinical practice, especially with the increasing incidence of immunocompromised patients. In this scenario, the development resistance to fluconazole presents a challenge for treating these opportunistic infections. The aim of this study was to evaluate some epidemiology features of Candidainfections in a Brazilian University Hospital using data, previously unavailable. We observed that 44% of the 93 clinical isolates tested, belonged to Candida albicansspecies and 56% belonged to non-Candida albicansspecies (mainly Candida tropicalis and Candida glabrata). Most strains were isolated from urine samples where C. albicans was predominantly detected. 29 strains presented a fluconazole resistance phenotype and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Candidaspp.; Clinical isolates; Epidemiology; Fluconazole; Resistance. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000301349 |
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| Brandolt,Tchana Martinez; Klafke,Gabriel Baracy; Gonçalves,Carla Vitola; Bitencourt,Laura Riffel; Martinez,Ana Maria Barral de; Mendes,Josiara Furtado; Meireles,Mário Carlos Araújo; Xavier,Melissa Orzechowski. |
| Abstract Vulvovaginal candidiasis (VVC) is an infection of the genital mucosa caused by different species of the genus Candida. Considering the lack of data on this topic in the south of Brazil, this study aimed to assess the prevalence of Candida spp. in the cervical-vaginal mucosa of patients treated at a university hospital in southern Rio Grande do Sul, as well as the etiology and the susceptibility of the isolates against fluconazole, itraconazole, miconazole and nystatin. Samples were collected at the gynecology clinic of the Federal Hospital of the University of Rio Grande, and the isolates were identified using phenotypic and biochemical tests. The susceptibility analysis was performed according to the CLSI M27-A2 protocol. Of the 263 patients... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vulvovaginal candidiasis; Antifungal; Susceptibility; Resistance. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822017000100145 |
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| Varella,Rafael Brandão; Ferreira,Selma Baía; Castro,Márcia Braga de; Tavares,Marisa Dias; Zalis,Mariano Gustavo. |
| We investigated the occurrence of HIV-1 antiretroviral resistance in individuals failing to respond to highly active antiretroviral therapy (HAART) attended by RENAGENO from 2001-2004. One hundred and seventeen patients were selected for this study; their plasma viral RNA was extracted and the PR and RT genes sequenced to examine subtype, genetic polymorphisms and mutations associated with resistance to antiretroviral drugs. HIV-1 sequence analysis showed that 86/100 (86%) were infected with subtype B, 7/100 (7%) with subtype F and 7/100 (7%) with RT/PR hybrid forms (2 D/B, 2 F/B, 2 B/F and 1 D/F). In 14 (12%) of the samples, the subtype was not determined. The prevalence of resistance mutations was high (93.1%), mainly in the RT gene. The most prevalent... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: HIV-1; HAART; Reverse transcriptase; Protease; Resistance. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702008000500007 |
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| Miller, Gay Y.; Algozin, Kenneth A.; McNamara, Paul E.; Bush, Eric J.. |
| Public health experts are concerned about the diminishing efficacy of antibiotics. Some have called for a ban on growth-promoting antibiotics in animal agriculture. This study identifies the contribution of growth-promoting antibiotics in the grower/finisher phase of U.S. pork production. With National Animal Health Monitoring System swine data, relationships are estimated between growth-promoting antibiotic use and productivity. Results indicate improvements in average daily gain (0.5%), feed conversion ratio (1.1%), and mortality rate (reduced 0.22 percentage points); these productivity improvements translate into a profitability gain of $0.59 per pig marketed, or an improvement of 9% in net profits associated with growth promotion antibiotics. |
| Tipo: Journal Article |
Palavras-chave: Antibiotics; Economics; Growth promotants; Productivity; Resistance; Swine; Q12; Q18. |
| Ano: 2003 |
URL: http://purl.umn.edu/43146 |
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| VALERIO, J. R.; KOLLER, W. W.. |
| Manejo de pragas em pastagens; Caracterizacao do problema, sobre a graminea forrageira, sobre o inseto; Consideracoes sobre as alternativas de controle, inseticidas quimicos, praticas culturais, resistencia de plantas aos insetos, controle biologico; Alguns resultados obtidos para fundamentar as proposicoes de manejo, efeito de diferentes cargas animal, durante o periodo seco do ano, efeito da remocao da cobertura vegetal morta acumulada ao nivel do solo em pastagens de brachiaria decumbens;Tratos culturais em pastagens de brachiaria decumbens Stapf; Selecao de gramineas resistentes as cigarrinhas das pastagens; Proposicoes para o manejo integrado das cigarrinhas das pastagens. |
| Tipo: Documentos (INFOTECA-E) |
Palavras-chave: Cigarrinha-das-pastagens; Manejo integrado; Controle; Carga animal; Queima controlada; Spittlebugs; Integrated control; Resistance; Controlled burning.; Cobertura Vegetal; Controle Biológico; Controle Químico; Gramínea; Inseticida; Gramineae; Ninfa; Pastagem; Ovo; Resistência; Queimada; Zulia Entreriana.; Grazing intensity; Eggs; Chemical control; Biological control; Insecticides; Nymphs; Pastures; Plant litter.. |
| Ano: 1992 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/321470 |
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| SOTO SEDANO,Johana; MORA MORENO,Rubén Eduardo; CALLE,Fernando; LÓPEZ CARRASCAL,Camilo Ernesto. |
| Cassava, Manihot esculenta Crantz, represents the main food source for more than one billion people. Cassava's production is affected by several diseases, one of the most serious is cassava bacterial blight (CBB) caused by Xanthomonas axonopodis pv. manihotis (Xam). A quantitative trait loci (QTL) analysis for CBB resistance was performed under natural infection conditions, using a mapping population of 99 full-sibs genotypes highly segregant and a SNP-based high dense genetic map. The phenotypic evaluation was carried out in Puerto López, Meta, Colombia, during the rainy season in 2015. Both resistant and susceptible transgressive segregants were detected in the mapping population. Through a non-parametric interval mapping analysis, two QTL were detected,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cassava; Molecular marker; QTL; Resistance; SNPs; Xanthomonas axonopodis pv. manihotis. |
| Ano: 2017 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2017000100002 |
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| VARGAS,L.; HENCKES,J.R.; GAVA,F.; AGOSTINETTO,D.; CARVALHO,I.R.; RAMOS,R.; RODRIGUES,R.. |
| ABSTRACT: Resistance to herbicides is one of the main factors responsible for weed control failures. Once uncontrolled and stressed, resistant weeds demand a new application of herbicides from different modes of action, which results in higher monetary costs and environmental impact. Knowledge of weed sensitivity levels to herbicides before making decisions for their management in the field is paramount to increasing the efficiency of integrated weed management. Thus, methods that allow the rapid determination of sensitivity levels can help to the correct recommendation before the application, and thus, favor the greater technical, economic and environmental efficiency of weed management. The objective of this work was to validate a rapid method to detect... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Integrated weed management; Resistance; Control; Efficiency. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100222 |
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| Levy, Ricardo Michael; UEL; Homechin, Martin; UEL; Santiago, Débora Cristina; UEL; Cadioli, Marina Capparelli; UEL; Baida, Fernando César; UEL. |
| O uso de híbridos e genótipos de milho resistentes aos nematóides formadores de galhas em sistemas de rotação de culturas mantém sua população em níveis baixos, diminuindo as perdas e possibilitando, posteriormente, o uso de genótipos mais suscetíveis. No presente trabalho, foi avaliada a resistência de 18 genótipos de milho ao parasitismo de M. paranaensis e a M. incógnita raça 1 em casa-de-vegetação. As plantas foram inoculadas com 5.000 ovos e eventuais juvenis dos respectivos nematóides. O delineamento utilizado foi inteiramente ao acaso, com dez repetições para cada tratamento com os nematóides e cinco repetições para a testemunha sem inoculação. Também foi realizada a técnica de coloração das raízes com fucsina ácida, pelo método de Byrd et al.... |
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Palavras-chave: 5.01.02.00-1 Fitossanidade Zea mayz; Nematóide; Resistência; Genótipo Zea may; Nematode; Resistance; Genotype. |
| Ano: 2009 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/761 |
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| Baida, Fernando Cesar; Universidade Estadual de Londrina; Santiago, Débora Cristina; Universidade Estadual de Londrina; Takahashi, Lúcia Sadayo Assari; Universidade Estadual de Londrina; Athanázio, João Carlos; Universidade Estadual de Londrina; Cadioli, Marina Capparelli; Universidade Estadual de Londrina; Levy, Ricardo Michael; Universidade Estadual de Londrina. |
| Nematoides formadores de galhas (Meloidogyne sp.) são responsáveis pela baixa produtividade na cultura do feijoeiro, cujas perdas, provocadas por esses patógenos, podem chegar até 90%. O presente estudo teve como objetivo avaliar o comportamento de seis linhagens de feijoeiro (‘Hav 06’, ‘Hav 11’, ‘Hav 28’, ‘Hav 50’, ‘Hav 69’ e ‘Torino’) frente ao parasitismo de M. javanica e de M. paranaensis. As linhagens foram inoculadas com 5.000 ovos e eventuais juvenis dos respectivos nematoides. O delineamento experimental foi inteiramente casualizado, com dez repetições para cada tratamento com os nematoides e dez repetições para testemunha sem inoculação. Quarenta e cinco dias após inoculação, os sistemas radiculares foram coletados, lavados e avaliados quanto à... |
| Tipo: Pesquisa Aplicada |
Palavras-chave: 5.01.02.00-1 nematoide-de-galha; Resistência; Feijoeiro Fitossanidade root-knot nematode; Resistance; Bean. |
| Ano: 2011 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/6146 |
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| Registros recuperados: 255 | |
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