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Registros recuperados: 35 | |
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Núñez,Lidia; D'Aquino,Miguel; Chirife,Jorge. |
The effect of temperature, concentration and contact time on the fungicidal effect of clove oleoresin dispersed in a concentrated sugar solution at 21 and 37ºC, and clove oleoresin at 0.2 to 0.8% (v/v) was studied. The test microorganisms were Candida albicans, Penicillium citrinum, Aspergillus niger and Trichophyton mentagrophytes. The fungicidal effect was enhanced at 37ºC; at this temperature short contact times (e.g. 1 min.) were enough to eliminate a microbial inoculum of 10(6) c.f.u./ml of C. albicans. Although clove oleoresin caused important lethal effect, P. citrinum and A. niger were more resistant. After 60 minutes, clove oleoresin dispersed (0.4% v/v) in concentrated sugar solution caused a 99.6% reduction of the initial population (10(6)... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Clove oil; Fungicide; Disinfectant; Sugar. |
Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822001000200010 |
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FIGUEIREDO, F. J. C.; CARVALHO, J. E. U. de; FRAZAO, D. A. C.. |
Com o objetivo de identificar um sistema eficiente de aplicação de defensivos (inseticida e/ou fungicida), com vistas a produção de sementes de caupi (Vigna unguiculata (L.) Walp.) livres de pragas e doenças, foi conduzido no Campo Experimental de Tracuateua, município de Bragança, Estado do Pará, um experimento onde testaram-se diferentes sistemas de pulverização. O inseticida (Diazinon) e o fungicida (Mancozeb) foram aplicados separadamente ou em mistura aos dez, 30 e 50 dias após a emergência, segundo o sistema. Os tratamentos Dz1, Dz2, Dz3 (uma, duas e três aplicações de Diazinon), Dn1, Dn2, Dn3 (uma, duas e três aplicações de Mancozeb), Dz1 + Dn1, Dz2 + Dn1, Dz3 + Dn1, Dz1 + Dn2, Dz2 + Dn2, Dz3 + Dn2, Dz1 + Dn3, Dz2 + Dn3 e e Dz3 + Dn3 foram... |
Tipo: Folhetos |
Palavras-chave: Caupi; Campo Experimental de Tracuateua; Braganca; Pará; Brasil; Cowpea; Pulverization; Infestation; Yield; Insecticide; Fungicide; Fungicida; Germinação; Inseticida; Infestação; Produtividade; Pulverização; Vigna Unguiculata; Amazonia; Germination; Vigor. |
Ano: 1985 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/383610 |
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PAZIN,WALLANCE M.; SANTOS,SUIKINAI N. DOS; QUEIROZ,SONIA C.N.; BAGATOLLI,LUIS A.; SOARES,ADEMILSON E.E.; MELO,ITAMAR S. DE; ITO,AMANDO S.. |
Abstract: We have established how natural compounds from green propolis collected by the species Apis mellifera act against the growth of Pythium aphanidermatum. On the basis of mass spectrometry (Q-ToF MS), we determined that Artepillin C, the major constituent of green propolis, underlies the effect and displays activity against P. aphanidermatum at a minimal inhibitory concentration of 750 µg.mL-1. Biophysical studies based on model membranes showed that this inhibitory effect may be linked with a membrane-related phenomenon: Artepillin C increases the permeability of membranes with relatively high fluidity in their lateral structure, a feature that is in line with the lipid composition reported for the cytoplasmic membrane of P. aphanidermatum.... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Green propolis; Artepillin C; Fungicide; Pythium aphanidermatum; Model membranes. |
Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000300617 |
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Santos, Jucileuza Conceição dos; Batista, Ieda Hortêncio; Barroso, Hiléia Santos; Lima, João Marcelo Silva; Costa Neto, Pedro de Queiroz; Ghelfi, Andrea; Pereira, José Odair. |
The biocidal agrochemicals commonly used in agriculture can remain in the soil, affecting the environmental conditions and causing serious risks to health. Knowing that soil microorganisms, especially those from the rhizosphere, can degrade environmental xenobiotics, it was evaluated the potential of bacteria isolated from Coriandrum sativum L. rhizosphere to biodegrade carbendazim (MBC), a fungicide extensively used by agriculturists from rural farming communities in Manaus, Amazonas. Cultures carried out in medium containing carbendazim as a sole carbon source enabled the isolation of 80 bacteria, in the established conditions. Assays to determine degradation potential allowed the selection of the two elite isolates identified as Stenotrophomonas sp.... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 2.12.00.00-9 Amazon soil; Fungicide; Coriander; Carbendazim-degrading bacteria; Stenotrophomonas; Xenobiotics. Microbiologia Aplicada. |
Ano: 2017 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/34067 |
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GOULART, A. C. P.; FIALHO, W. F. B.; FUJINO, M. T.. |
Este trabalho objetivou avaliar o efeito de dois tipos de embalagens e do tratamento fungicida na qualidade de sementes de soja armazenadas. Sementes de soja das cultivares FT-Estrela e MT/BR 51 (Xingu), tratadas e não tratadas com os fungicidas tiofanato metílico, tolylfluanid, carbendazin e benomyl, foram armazenadas (em sacos de papel e em sacos de polietileno) em armazéns convencionais em Ponta Porã, MS e Rondonópolis, MT, respectivamente. Uma máquina da marca Amazone Transmix foi utilizada para fazer o tratamento. A cada 60 dias foram realizadas avaliações dos seguintes parâmetros: umidade das sementes, sanidade de sementes (blotter test), germinação padrão, vigor no tetrazólio, emergência em areia e emergência a campo. Não foi observado efeito... |
Tipo: Folhetos |
Palavras-chave: Fungicide; Soybean; Fungicida; Soja; Seed treatment. |
Ano: 2002 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/938703 |
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Taghinezhad, Ebrahim; Rasooli Sharabiani, Vali. |
Most of the world's consumers have used the natural coatings instead of chemical coatings. In this research, some quality properties of Thomson orange were evaluated using Chitosan edible coating (at concentrations of 0.5, 1 and 2%) and chemical coating of fungicide (Ortho Phenyl Phenol) as compared to uncoated samples during storage for three months. Fruit were maintained in cold storage at 6 °C temperature and 85-90% relative humidity, then pH, total soluble solid (TSS) of orange juice and percentage of fruit weight loss were measured during storage every month. The results showed that weight loss of fruit with 2% chitosan coating was lower than other treatments. Also this treatment had high resistance against fungal attacks due to high values of pH, so... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chitosan; Citrus; Fungicide; Quality; Storage. |
Ano: 2018 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4189 |
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Murakami,Kiyotaka; Cruz,Andre Freire; Pires,Marcio de Carvalho; Icuma,Ivone Midori; Yamanishi,Osvaldo Kiyoshi. |
Abstract This study aimed to establish an alternative treatment for post-harvest storage of Papaya (Carica papaya L.), var “Tainung 1” and to control major diseases at this stage. Two storage place were evaluated (room temperature and cold room); Six treatments (Control, Samurai 40ml/20l water, Serenade® 40ml/20l water, Sanatizer EUPROOFF® 10ml/20l water, EUPROOFF® + Serenade® + Samurai, Serenade® + Samurai), five storage periods (0, 3, 6, 9 and 12 days) and three seasons (December, January and February). Fruit weight loss (FWL), color index, number and size of lesions were evaluated and used to calculate the disease incidence and average of disease incidence. The FWL and index color of fruits were more affected by monthly variation than the treatments,... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fruit disease; Biocontrol; Cold room; Fungicide; Organic pesticide. |
Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452020000300402 |
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Papini,S.; Andréa,M. M.. |
Enhanced degradation of the fungicide metalaxyl was investigated in two soils: a gley humic (GH) and a Dark Red Latosol (LE), collected at sites never exposed to the fungicide. The soil samples were treated with successive applications of metalaxyl as a commercial formulation and 14C-metalaxyl in laboratory. Metalaxyl biodegradation was analyzed during 63 days by means of radiometric techniques to verify biomineralization and degradation product formation from the applied 14C-metalaxyl. Although biomineralization (maximum of 14 and 8% in the GH and LE soils, respectively), and partial degradation (about 32 and 48%, respectively) were detected in both soils, enhanced degradation was verified only in the GH soil. Results proved that metalaxyl behaves... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Degradation; Fungicide; Biomineralization. |
Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832000000200023 |
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Monteón Ojeda, Abraham. |
Se estudió el progreso temporal de epidemias de antracnosis (C. gloeosporioides) y cenicilla (O. mangiferae) en dos huertos de mango (Mangifera indica) sujetos a programa de aspersión periódica de fungicidas de distinto grupo químico, modo de acción, combinación (rotación) y secuencia de aplicación, en concordancia con el desarrollo fenológico de tres flujos florales. El experimento se realizó en el huerto comercial “Las Tunas” en la región del trópico subhúmedo (Costa Grande) de Guerrero, México, durante el ciclo productivo 2010-2011. Las escalas fenológicas utilizadas permitieron identificar la floración plena, amarre inicial (3-5mm Ø) y frutos tamaño (8-15mm Ø) como etapas críticas de infección. El inicio de las epidemias se registró 23-30 días... |
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Palavras-chave: Mangifera indica; C. gloeosporioides; O. mangiferae; Epidemia; Manejo; Fungicida; Epidemics; Management; Fungicide; Fitopatología; Maestría. |
Ano: 2012 |
URL: http://hdl.handle.net/10521/752 |
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Silva,Gildo Almeida da; Bernardi,Taís Letícia; Schaker,Patrícia Dayane Carvalho; Agustini,Bruna Carla; Mello,Loiva Maria de; Valente,Patrícia. |
ABSTRACT The indiscriminate use of pesticides on grape crops is harmful for consumers´ healthin “in natura” consumption and in the ingestion of wine and grape juice. During winemaking, a rapid and efficient fermentation stage is critical to avoid proliferation of contaminating microorganisms and to guarantee the product´s quality. Polymerase chain reaction (PCR) has the advantage of detecting these contaminants in the early stages of fermentation. However,this enzymatic reaction may also be susceptible to specific problems, reducing its efficiency. Agricultural practices, such as fungicide treatments, may be a source of PCR inhibiting factors and may also interfere in the normal course of fermentation.The action of the pesticides captan and folpet on PCR... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fungicide; PCR inhibitors; Stuck fermentation; Taq polymerase inhibitors; Yeast growth. |
Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132016000100515 |
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Registros recuperados: 35 | |
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