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| Registros recuperados: 21 | |
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| Rodrigues,Maria Luísa Mendes; Souza,Samuel Gustavo Ribeiro de; Mizobutsi,Edson Hiydu; Pinheiro,Juceliandy Mendes da Silva; Monção,Flávio Pinto; Mizobutsi,Gisele Polete. |
| Abstract The aim of this study was to evaluate the anthracnose intensity in ‘Prata-Anã’ banana with the application of three phosphite formulations in two application intervals in the developing banana bunches and to evaluate the physical and chemical characteristics of fruits. In the field, in addition to producer management, three phosphite formulations were evaluated: FCu1 (4% Cu + 20% P2O5), FCu2 (4% Cu + 22% P2O5) and FK (42% P2O5 + 27.7% K2O) sprayed on banana bunches at different application frequencies: four and eight times. The experiment was carried out in a randomized blocks design following a 5 x 2 factorial scheme, with 3 phosphite formulations, pure water and no application and two application intervals. Pure water and no application were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Colletotrichum musae; Severity; Musa spp; Phosphites; Treatment. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452020000300401 |
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| Salgado Feregrino, Oscar Javier. |
| En México, el Tizón Suizo, Phaeocryptopus gaeumannii, reduce la calidad y producción de árboles de navidad, poco se conoce del ciclo biológico. Esta investigación se dividió en tres partes. La primera tuvo como objetivo conocer la biología del hongo a través de un año, para ello se identificó, secuenció, evaluó incidencia, severidad, defoliación, porcentaje de aislamientos, ascosporas en pseudotecios y aerotransportadas. En la segunda parte se estudió in vitro la relación del hongo con el silicio y nutrimentos, se registró peso húmedo y seco. En la tercera parte se estudio in situ la relación con la dosis nutritiva y evaluó porcentaje de defoliación y concentración nutrimental en acículas. En la primera parte se encontró hasta tres periodos de incremento... |
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Palavras-chave: Forestal; Maestría; Ascosporas aerotransportadas; Incidencia; Phaeocryptopus gaeumannii; Severidad; Pseudotsuga menziesii; Airborne ascospore; Incidence; Severity. |
| Ano: 2013 |
URL: http://hdl.handle.net/10521/2075 |
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| NAVARRO CERRILLO,RAFAEL M; HAYAS,ANTONIO; GARCÍA-FERRER,ALFONSO; HERNÁNDEZ CLEMENTE,ROCÍO; DUHALDE,PAMELA; GONZÁLEZ,LUIS. |
| El uso de sensores remotos para la evaluación de la severidad es una de los aspectos más importantes en el estudio de grandes incendios, así como la aplicación de los resultados para el proceso de restauración. En este trabajo se ha estudiado la aplicación de imágenes de los sensores Landsat ETM+ y ASTER para evaluar la vegetación previa, la superficie recorrida por el fuego y los daños producidos por el incendio ocurrido en el año 2005 en el Parque Nacional de Torres del Paine (Chile). Los resultados obtenidos indican que el índice delta NBR es bastante versátil para evaluar la superficie afectada, estimada en este caso en 17.138 ha, así como la severidad de los daños (Fiabilidad = 81,5 %; k = 0,73). Por otro lado, se ha confirmado la adecuación del uso... |
| Tipo: Journal article |
Palavras-chave: Incendios forestales; Vegetación patagónica; Severidad; Normalized Burn Ratio; Forest fires; Patagonian vegetation; Severity; Normalized Burn Ratio. |
| Ano: 2008 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2008000100008 |
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| Aucique-Perez,Carlos Eduardo; Daza,Edison Steve; Ávila-Diazgranados,Rodrigo Andrés; Romero,Hernán Mauricio. |
| ABSTRACT Bud rot (BR) caused by Phytophthora palmivora and lethal wilt (LW) whose causal agent is unknown, are two diseases currently posing a threat to the oil palm ( Elaeis guineensis . Jacq) industry. BR, first reported in 1964, has destroyed more than 85,000 ha. LW, first reported in 1994 in the Llanos Orientales in Colombia, has destroyed more than 5,000 ha. Chlorophyll a fluorescence is useful as a provider of information about the efficiency of the photosynthetic process when plants are subjected to biotic or abiotic stresses. Oil palms affected by BR and LW showed anomalies in the photosynthetic system, manifested by reductions in Fv / F M and ΦPSII. Changes in ΦPSII, variable fluorescence yield ( Fv ) and maximum fluorescence in light-adapted... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Photosystem II; PSII quantum efficiency; Plant-Pathogen Interaction; Severity. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162020000201201 |
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| Kovaleski,Marcos; Maciel,João Leodato Nunes; Santos,Gustavo Bilibio dos; Silva,Alieze Nascimento da; Deuner,Carolina Cardoso. |
| ABSTRACT: Wheat blast is known for developing itself more intensely under relatively high temperature conditions but many aspects related to its epidemiology remain unknown. The objective of this research was to evaluate the sporulative capacity of Pyricularia oryzae Triticum (Pot), the causal agent of wheat blast, in tissues of wheat plants under different temperatures degrees. Wheat plants of the cultivar Anahuac 75, susceptible to blast, were inoculated in the stage of flowering with conidial suspensions (105 conidia/mL) of the Pot isolates Py 12.1.209 and Py 12.1.132. Seven days after the inoculation, plants were cut in the following segments: leaves, stems and rachis (with blast severity ranging from 40 to 60%). Groups of each one of the three plant... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Wheat blast; Conidial production; Severity; Sporulative lesions. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000400151 |
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| Berenguer,Anabela Gonçalves; Fernandes,Ana Teresa; Oliveira,Susana; Rodrigues,Mariana; Ornelas,Pedro; Romeira,Diogo; Serrão,Tânia; Rosa,Alexandra; Câmara,Rita. |
| BACKGROUND: Asthma is a complex disease influenced by multiple genetic and environmental factors. While Madeira has the highest prevalence of asthma in Portugal (14.6%), the effect of both genetic and environmental factors in this population has never been assessed. We categorized 98 asthma patients according to the Global Initiative for Asthma (GINA) guidelines, established their sensitization profile, and measured their forced expiratory volume in 1second (FEV1) and forced vital capacity (FVC) indexes. Selected single nucleotide polymorphisms (SNPs) were analysed as potential markers for asthma susceptibility and severity in the interleukin 4 (IL4), interleukin 13 (IL13), beta-2-adrenergic receptor (ADRB2), a disintegrin and metalloprotease 33 (ADAM33),... |
| Tipo: Journal article |
Palavras-chave: Asthma; Madeira; SNPs; Susceptibility; Severity. |
| Ano: 2014 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602014000100040 |
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| Silva,Lais Maia e; Ribeiro,Regina Cássia Ferreira; Rodrigues,Maria Luisa Mendes; Fernandes,Martielle Batista; Mizobutsi,Edson Hiydu. |
| Abstract Anthracnose stands out among rot diseases that can occur in the post-harvest phase of banana. The aim of this study was to evaluate the thermotherapy in the control of anthracnose in ‘Prata Anã’ banana produced in northern state of Minas Gerais. Bananas ‘Prata Anã’ variety were divided into groups of three fruits and inoculated with Colletotrichum musae. Groups were submitted to thermotherapy using five temperatures (40°C, 44°C, 48°C, 52°C and 56°C) and four immersion times (4, 8, 12 and 16 minutes) and control. Treatments were repeated five times in a completely randomized design. Area under the incidence progress curve (AUIPC) and area under the severity progress curve (AUSPC) were calculated. To evaluate the thermotherapy efficiency compared... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Colletotrichum musae; Thermotherapy; Incidence; Severity. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452018000200402 |
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| Miladinovic,D; Dedic,B; Quiróz,F; Alvarez,D; Poverene,M; Cantamutto,M. |
| The parasitic weed Orobanche cumana Wallr. (broomrape) is one of the major limiting factors in worldwide sunflower production. However, it is absent in the centre of origin and in the sunflower crop areas of América. It has not yet been elucidated if O. cumana naturalization in sunflower habitats in Argentina is restricted as a result of either abiotic constraints or resistance in grown commercial cultivars. The aim of the present study was to assess the degree of resistance of commercial sunflower cultivars grown in Argentina to O. cumana. More than 95% of the tested sunflower cultivars were, in general, susceptible to broomrape attack. Although three cultivars were found to evidence an acceptable response to broomrape attack, only one of them showed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broomrape; Incidence; Severity. |
| Ano: 2012 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1852-62332012000100004 |
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| Coelho,Maurício Antônio de Oliveira; Torres,Gisele Abigail Montan; Cecon,Paulo Roberto; Santana,Flávio Martins. |
| Abstract: The objective of this work was to assess the effect of sowing date on the intensity of wheat blast disease, as well as the yield losses caused by this disease in different wheat (Triticum aestivum) genotypes. The experiments were conducted in 2013 at the Sertãozinho experimental station of Empresa de Pesquisa Agropecuária de Minas Gerais (Epamig), in the municipality of Patos de Minas, in the state of Minas Gerais, Brazil. Fourteen wheat genotypes and two sowing dates were evaluated. The experimental design was a randomized complete block with three replicates. The evaluated variables were: incidence, severity, thousand grain weight (TGW), grain yield, and yield losses. A disease index (DI) was calculated, based both on the incidence and the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Magnaporthe oryzae; Pyricularia oryzae; Triticum aestivum; Disease index; Severity; Tolerance.. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2016000500631 |
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| Sepúlveda-Chavera,Germán; Salvatierra-Martínez,Ricardo; Andía-Guardia,Rodrigo. |
| The powdery mildew complex (Leveillula taurica and Erysiphe sp.) is one of the major factors limiting tomato (Solanum lycopersicum) production in the Azapa Valley, Chile. This problem is especially severe in the case of protected crops because the options for the treatment of these crops with chemical fungicides are limited. This study evaluated the effects of 0.5 and 1.0 kg100 L-1 Ospo-V55® and 10% raw cow's milk on tomato leaflets infected by powdery mildew complex. Ospo-V55®, with active ingredients consisting of 10% p/p of algae extract (IB-101) and 0.8% of microorganism concentrate, was evaluated in this study. Ospo-V55® contains flavonoids, alkaloids and phenols, oligo- and polysaccharides, 8.6% protein, 0.5% magnesium and trace amounts of... |
| Tipo: Journal article |
Palavras-chave: Alternative product; Conidial germination; Ospo-V55®; Powdery mildew; Raw cow's milk; Severity; Tomato; Valle de Azapa. |
| Ano: 2013 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202013000100010 |
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| Pérez Rojas, Moisés. |
| En un invernadero comercial de jitomate ubicado en Zacatepec, Morelos, se realizaron aplicaciones independientes de miel de abeja, Saccharomyces cerevisiae, ácido acetil salicílico, cobre-manganeso-zinc y acibenzolar S-metil para determinar su efecto sobre el rendimiento, incidencia y severidad de virosis en este cultivo. Adicionalmente, se evaluó el extracto de clavo como repelente de mosca blanca. Las plantas tratadas con levadura tuvieron la menor incidencia en la primera fecha de evaluación. Plantas asperjadas con acibenzolar S-metil mostraron la menor severidad en las tres primeras fechas de evaluación, mientras que las tratadas con miel presentaron los valores más altos de incidencia en todas las fechas de evaluación. El extracto de clavo no funcionó... |
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Palavras-chave: Solanum lycopersicum; Virus; Incidencia; Severidad; Rendimiento; Control; Incidence; Severity; Yield; Fitopatología; Maestría. |
| Ano: 2013 |
URL: http://hdl.handle.net/10521/2000 |
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| Registros recuperados: 21 | |
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