Consulta: subjectFacets:"Severity"
Registros recuperados: 21
Data/hora: 10/06/2024 04:32:32

Efectividad biológica de insecticidas contra el psílido de la papa (Bactericera cockerelli Sulc.) en Metepec Estado de México y transmisión de bacterias no cultivadas asociadas a enfermedades en papa (Solanum tuberosum L.)
Provedor de dados: 32
Autores: López Duran, María Felipa.
Con el propósito de identificar insecticidas efectivos para el manejo del psílido de la papa Bactericera  cockerelli Sulc., y reducir la incidencia de la Punta Morada de la Papa (PMP), se realizó un experimento  en Metepec, Edo. de México, donde se evaluaron siete insecticidas de diferentes grupos toxicológicos. Los  mejores insecticidas para el control de huevos y adultos del psílido fueron extracto de nim y abamectina  con 69.8 y 84.8% de efectividad biológica, mientras que para ninfas fueron spiromesifen, bifentrina,  abamectina y flufenoxuron con 77.7% de efectividad. Sin embargo, ningún producto fue efectivo para  reducir la incidencia de la Punta Morada de la Papa.   El objetivo del segundo estudio fue determinar si B. cockerelli Sulc. transmite el...
Tipo: Tesis
Palavras-chave: Candidatus Liberibacter; Control químico; Fitoplasmas; Incidencia; Infección; Inoculación; Paratrioza; Psílido; Punta morada de la papa; Severidad; Transmisión Candidatus Liberibacter; Chemical control; Phytoplasmas; Incidence; Infection; Inoculation; Paratrioza; Potato Purple Top; Psyllid; Severity; Transmission.
Ano: 2012
URL: http://hdl.handle.net/10521/1028

Respuesta de 41 variedades prometedoras de caña de azúcar a la enfermedad de la escaldadura de la hoja (Xanthomonas albilineans).
Provedor de dados: 32
Autores: López Vázquez, José de Jesús.
La escaldadura de la hoja (Xanthomonas albilineans), es una de las enfermedades bacterianas de mayor importancia en el cultivo de caña de azúcar. Afecta la calidad del jugo y en variedades susceptibles ocasiona pérdidas estimadas entre el 90 y 100%. Con el objetivo fue caracterizar molecularmente el agente causal, evaluar el método apropiado de inoculación y evaluar la respuesta de 41 variedades de caña de azúcar a la escaldadura de la hoja. Las variedades fueron inoculadas en campo por tres métodos: transmisión mecánica, inyección y decapitado; a los 120 días después de la siembra. Se empleó una suspensión bacteriana de 9X10-8 ufc/ml-1.  Para identificar molecular se utilizó PCR con los primers 8F y 1492R. Para determinar el método apropiado de...
Palavras-chave: Escaldadura; Incidencia; Severidad; Resistencia; Susceptibilidad; Scald; Incidence; Severity; Resistance; Susceptibility; Maestría; Producción Agroalimentaria en el Trópico.
Ano: 2013
URL: http://hdl.handle.net/10521/2045

Etiología e incidencia de hongos asociados al manchado de cálices de jamaica (Hibiscus sabdariffa L.) en Guerrero, México.
Provedor de dados: 32
Autores: Martínez Sánchez, Cinthia.
El cultivo de la jamaica (Hibiscus sabdariffa L) es una de las actividades agrícolas importantes en el estado de Guerrero, así como una de las principales fuentes de ingresos monetarios y una alternativa para la diversificación de la actividad agrícola de la región. Este cultivo, en las zonas productoras de Guerrero, se ha visto afectado en los años recientes, por una enfermedad que se caracteriza por un manchado en la superficie del cáliz, situación que afecta a los productores a la hora de comercializar el producto. Por esta razón se realizó el presente trabajo de investigación con la finalidad de conocer los causantes de la enfermedad así como la incidencia y severidad. Los hongos que se asocian a la enfermedad son Coniella musaiaensis (Sutton) var....
Palavras-chave: Coniella musaiaensis var. hibisci; Lasiodiplodia theobromae; Corynespora cassiicola; Phomopsis sp.; Identificación; Severidad; Identification; Severity; Maestría; Fitopatología.
Ano: 2010
URL: http://hdl.handle.net/10521/260

Virus asociados al cultivo de jitomate en el estado de Morelos.
Provedor de dados: 32
Autores: 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...
Palavras-chave: Solanum lycopersicum; Virus; Incidencia; Severidad; Rendimiento; Control; Incidence; Severity; Yield; Fitopatología; Maestría.
Ano: 2013
URL: http://hdl.handle.net/10521/2000

Biología del tizón suizo y su relación con el silicio y la nutrición de árboles de navidad.
Provedor de dados: 32
Autores: 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...
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

Efectividad biológica de insecticidas contra el psílido de la papa (Bactericera cockerelli Sulc.) en Metepec Estado de México y transmisión de bacterias no cultivadas asociadas a enfermedades en papa (Solanum tuberosum L.)
Provedor de dados: 32
Autores: López Duran, María Felipa.
Con el propósito de identificar insecticidas efectivos para el manejo del psílido de la papa Bactericera  cockerelli Sulc., y reducir la incidencia de la Punta Morada de la Papa (PMP), se realizó un experimento  en Metepec, Edo. de México, donde se evaluaron siete insecticidas de diferentes grupos toxicológicos. Los  mejores insecticidas para el control de huevos y adultos del psílido fueron extracto de nim y abamectina  con 69.8 y 84.8% de efectividad biológica, mientras que para ninfas fueron spiromesifen, bifentrina,  abamectina y flufenoxuron con 77.7% de efectividad. Sin embargo, ningún producto fue efectivo para  reducir la incidencia de la Punta Morada de la Papa.   El objetivo del segundo estudio fue determinar si B. cockerelli Sulc. transmite el...
Tipo: Tesis
Palavras-chave: Candidatus Liberibacter; Control químico; Fitoplasmas; Incidencia; Infección; Inoculación; Paratrioza; Psílido; Punta morada de la papa; Severidad; Transmisión; Maestría; Entomología y Acarología; Chemical control; Phytoplasmas; Incidence; Infection; Inoculation; Paratrioza; Potato Purple Top; Psyllid; Severity; Transmission.
Ano: 2009
URL: http://hdl.handle.net/10521/1356

Orobanche cumana wallr. resistance of commercial sunflower cultivars grown in Argentina
Provedor de dados: 46
Autores: 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

Sowing date reduces the incidence of wheat blast disease
Provedor de dados: 86
Autores: 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

Anthracnose control of ‘Prata-Ana’ banana with pre-harvest phosphite application
Provedor de dados: 94
Autores: 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

Hydrothermal treatment in the management of anthracnose in ‘Prata-Anã’ banana produced in the semiarid region of Minas Gerais, Brazil
Provedor de dados: 94
Autores: 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

Caracterización de la situación posincendio en el área afectada por el incendio de 2005 en el Parque Nacional de Torres del Paine (Chile) a partir de imágenes multiespectrales
Provedor de dados: 97
Autores: 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

Chlorophyll a fluorescence and leaf temperature are early indicators of oil palm diseases
Provedor de dados: 63
Autores: 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

Research on corn and sorghum pathology in Thailand
Provedor de dados: 106
Autores: Udom Pupipat; Kitti Choonhawongse; Thammasak Sommartya; Siangjeaw Piriyaprin; Warapa Kunaporn; Prachum Jutawantana.
6 ill., 18 tables
Palavras-chave: Corn; Maize; Sorghum; Pathology; Head mold; Leaf diseases; Downy mildews; Stalk rot; Diplodia zeae; Root diseases; Varieties; Disease resistance; Selection; Fungicides; Disease control; Yields; Fungitoxicology; Severity; Compost making; ข้าวโพด; ข้าวฟ่าง; โรคพืช; โรคราน้ำค้าง; โรคลำต้นเน่า; เชื้อสาเหตุ; สารกำจัดเชื้อรา; ดิพโพลเดีย; โรคที่เกิดกับราก; โรคราบนช่อข้าวฟ่าง; โรคทางใบ; โรคราสนิม.
Ano: 1982
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4094

การลดความรุนแรงของโรคไหม้ของข้าวโดยการปลูกแบบหลายสายพันธุ์ในภาคเหนือตอนล่าง
Provedor de dados: 106
Autores: Acharaporn Na Lampang Noenplab.
This study was carried out at Phitsanulok Rice Research Center during 2008-2010 aiming for minimizing rice blast severity by growing 2 rice lines differed in blast resistance to broaden rice genetics. In 2008, resistance screening was performed on 2 sets of blast resistant rice lines derived from KDML105 having different donors of resistance developed by Ubon Ratchathani Rice Research Center. Ten selected blast isolates were inoculated one at a time onto 21 day-old seedlings at 50,000 spores/ml and kept at 25 o C in the controlled room for 7 days before assessment. Since selection criteria were based on resistance to half of the tested isolates and an ideal pair should have similar maturity, therefore, none of the lines have been selected. In 2009, the...
Tipo: Collection
Palavras-chave: Rice blast; Severity; Multilines; Lower north region; ข้าว; โรคไหม้; ความรุนแรง; สายพันธุ์ข้าว; การปลูกแบบหลายสายพันธุ์; ภาคเหนือตอนล่าง.
Ano: 2011
URL: http://anchan.lib.ku.ac.th/agnet/handle/123456789/3077

Genetic polymorphisms and asthma: findings from a case - control study in the Madeira island population
Provedor de dados: 48
Autores: 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

Immune responses to Leptospira infection: roles as biomarkers for disease severity
Provedor de dados: 55
Autores: Chirathaworn,Chintana; Kongpan,Sutthikarn.
Various leptospiral components have been identified and shown to be involved in tissue destruction. In addition, immune responses to leptospires have been implicated in target organ damages in severe leptospirosis cases. Several inflammatory mediators were shown to be higher in susceptible animals than in resistant hosts. Moreover, cytokines/chemokines and serum proteins induced following Leptospira infection were suggested to be biomarkers for disease severity in human leptospirosis. This review focuses on the role of immune responses in the severity of leptospirosis. Studies in both animal models and humans are discussed.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Leptospirosis; Severity; Biomarker; Immune response.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702014000100077

Circulating high mobility group box-1 and toll-like receptor 4 expressions increase the risk and severity of epilepsy
Provedor de dados: 56
Autores: Kan,Minchen; Song,Lihong; Zhang,Xueqiang; Zhang,Jing; Fang,Pingping.
This study aimed to investigate the association of serum high-mobility group box-1 (HMGB1) and toll-like receptor 4 (TLR4) expressions with the risk of epilepsy as well as their correlations with disease severity and resistance to anti-epilepsy drugs. One hundred and five epilepsy patients and 100 healthy controls (HCs) were enrolled in this case-control study, and serum samples were collected from all participants to assess the HMGB1 and TLR4 expressions by enzyme-linked immunosorbent assay (ELISA). Both serum HMGB1 (P&lt;0.001) and TLR4 (P&lt;0.001) expressions were higher in epilepsy patients than in HCs, and they displayed good predictive values for risk of epilepsy. Moreover, HMGB1 was positively correlated with TLR4 level (r=0.735, P&lt;0.001). HMGB1...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: High-mobility group box-1 (HMGB1); Toll-like receptor 4 (TLR4); Epilepsy; Severity; Drug resistance.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2019000700603

The alternative control of powdery mildew complex (Leveillula taurica and Erysiphe sp.) in tomato in the Azapa Valley, Chile
Provedor de dados: 118
Autores: 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

Relationship between blast severity on seedlings and panicles of Brazilian oat cultivars
Provedor de dados: 65
Autores: Danelli,Anderson Luiz Durante; Maciel,João Leodato Nunes; Boaretto,Cristina; Cruz,Christian; Castro,Ricardo Lima de; Forcelini,Carlos Alberto.
ABSTRACT: Blast, caused by Pyricularia oryzae, threats black (Avena strigosa) and white (A. sativa) oats in Brazil. Little is known about the reaction of Brazilian oat cultivars to blast and if there is a relationship between the response of cultivars to the disease at seedling and adult plant stages. The goals of this research were to verify (a) the reaction of black and white Brazilian oat cultivars to infection of P. oryzae and (b) if the response to blast on seedling leaves and panicles was correlated. Seedlings and adult plants of 13 oat cultivars were inoculated with a conidial suspension of one P. oryzae isolate obtained from a black oat cultivar. The cultivars were classified according to blast severity on the leaf seedlings and panicles estimated...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pyricularia oryzae; Severity; No-tillage.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017001200205

Ethylene inhibitor aminoethoxyvinilglycine on glomerella leaf spot in apple cultivar 'Royal Gala'
Provedor de dados: 65
Autores: Bogo,Amauri; Casa,Ricardo Trezzi; Rufato,Leo; Kuhnem Júnior,Paulo Roberto; Gonçalves,Mayra Juline.
Aqueous solution of Aminoethoxyvinylglycine (AVG) has been commercialized in Brazil as ReTainTM C, 15% mainly as a potent inhibitor of ethylene biosynthesis by prevention of pre-harvest abscission and ripening of apple fruits. The effect of the product was evaluated during the 2007-08 and 2008-09 crop seasons in edafoclimatic conditions of Santa Catarina upland. Plants of 'Royal Gala' cultivar were sprayed with ReTainTM C, four weeks before the first commercial harvest at doses of 0; 62,5; 125, and 250mg a.i L-1. The incidence and severity were quantified weekly in 100 leaves distributed in four branches with 12 replications and assessed the area under the incidence -I and severity -S disease progress curve (AUIDPC and AUSDPC) of Glomerella leaf spot...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Malus domestica; Growth regulator; Colletotrichum gloeoporioides; Incidence; Severity; Area under disease progress curve.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782011000600001

Conidia sporulation of Pyricularia oryzae in segments of wheat plants under six different temperatures
Provedor de dados: 65
Autores: 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