Descubre y comparte nuestro conocimiento público

Se han encontrado 10 recursos

Resultados de búsqueda

The CIAT rice breeding program has been developing germplasm resistant to P. oryzae since 1967. The distribution of these lines throughout Latin America is done using the observational nursery (VIOAL) organized by the International Network for Genetic Evaluation of Rice-INGER. Augmented design wi...


Guimaraes, Elcio PerpétuoOspina Rey, Yolima[Evaluación del progreso en la selección de líneas resistentes al añublo del arroz (Pyricularia oryzae Cav.) en viveros internacionales]Evaluación del progreso en la selección de líneas resistentes al añublo del arroz (Pyricularia oryzae Cav.) en viveros internacionales

Thirty-four fungicides were applied to soil at the time the blast susceptible Fanny rice variety was planted in 1 m(2) plots, replicated twice. On the basis of blast incidence and spike development the most effective fungicides were Benlate, NF.44, Duter, Brestan and Desmosan


Gálvez E., Guillermo E.Castaño Zapata, Jairo[Aplicación de productos quimoterapéuticos al suelo para el control de Pyricularia oryzae en arroz]Aplicación de productos quimoterapéuticos al suelo para el control de Pyricularia oryzae en arroz

Sixty rice cultivars were planted in 20 m long plant beds 1.20 m wide at two locations: Meta Department where good temperature and humidity conditions exist for blast (Pyricularia oryzae) development, and Cauca Valley where temperature is near optimum but humidity is low. At the Cauca location th...


Gálvez E., Guillermo E.Castaño Zapata, Jairo[Nuevo método para obtener alta infección de Pyricularia oryza en áreas de baja humedad relativa]Nuevo método para obtener alta infección de Pyricularia oryza en áreas de baja humedad relativa

The infection efficiency and the infection rate of the spore population of Pyricularia oryzae was lower if the percentage of races to which each cultivar was resistant was high. It appears that cultivars with resistance to a high percentage of the races of the pathogen behaved as expected for “ho...


Sang Won AhnOu, SH[Epidemiological implications of the spectrum of resistance to rice blast]Epidemiological implications of the spectrum of resistance to rice blast

Eighteen rice cultivars used for differentiating physiologic races of Pyricularia oryzae in the Philippines were repeatedly exposed in the blast nursery, and seven of them artificially inoculated with 40 single-spore isolates. The number of lesions that formed on individual cultivars was negative...


Sang Won AhnOu, SH[Quantitative resistance of rice to blast disease]Quantitative resistance of rice to blast disease
Sang Won AhnTulande Valencia, EdgarRubiano, M.[Negative selection in breeding for quantitative resistance to rice blast (Bl) under upland nursery conditions]Negative selection in breeding for quantitative resistance to rice blast (Bl) under upland nursery conditions
Sang Won AhnRubiano, M.[Relationship between susceptibility to leaf blasst (Bl) and panicle Bl severity]Relationship between susceptibility to leaf blasst (Bl) and panicle Bl severity
Sang Won AhnRubiano, M.[Methods and timing of fungicide application to control rice blast (Bl) under favorable upland conditions in Colombia]Methods and timing of fungicide application to control rice blast (Bl) under favorable upland conditions in Colombia

El añublo ô quemazón del arroz, causado por el hongo P. grisea (Sacc), es la enfermedad más limitante del cultivo en todo el mundo. La resistencia varietal ha sido y continua siendo la base para el control de la pyricularia, sin embargo, ésta resistencia se pierde rápidamente debido al surgimient...


Prado Patiño, G.A.Correa Victoria, Fernando J.[Estudios sobre la fertilidad y compatibilidad sexual del hongo Pyricularia grisea (Sacc) y sus implicaciones en el desarrollo de resistencia durable en variedades de arroz para Colombia]Estudios sobre la fertilidad y compatibilidad sexual del hongo Pyricularia grisea (Sacc) y sus implicaciones en el desarrollo de resistencia durable en variedades de arroz para Colombia

Selecciona los documentos para visualizarlos

Nombre del archivo Ver recurso