Descubre y comparte nuestro conocimiento público

Se han encontrado 13 recursos

Resultados de búsqueda

Book 1978

Autor: Schwartz, Howard F. Gálvez E., Guillermo E. Schoonhoven, Aart van Howeler, Reinhardt H. Graham, Peter H. Flor Montoya, Carlos A.

A description is given of the different factors limiting to bean production in Latin America, type of damage caused, environmental conditions where they prevail, and possible control measures. With regard to diseases, the following are discussed: aphid-, whitefly- and beetle-transmitted viruses, ...

Se presenta una descripcion de los diferentes factores que limitan la produccion de frijol en Latinoamerica, el tipo de dano causado, condiciones ambientales donde estos prevalecen, y posibles medidas de control. Se examinan las siguientes enfermedades: virus transmitidos por afidos, mosca blanca...

Enlace original: https://cgspace.cgiar.org/handle/10568/77898

Investigación en Agricultura
Enlace permanente

Schwartz, Howard F. ,  Gálvez E., Guillermo E. ,  Schoonhoven, Aart van ,  Howeler, Reinhardt H. ,  Graham, Peter H. ,  Flor Montoya, Carlos A. ,  [Field problems of beans in Latin America] ,  Field problems of beans in Latin America
Report 1979

Autor: Schwartz, Howard F. Sanders, J.H.
Enlace original: https://cgspace.cgiar.org/handle/10568/71875

Investigación en Agricultura
Enlace permanente

Schwartz, Howard F. ,  Sanders, J.H. ,  [Plant diseases of dry beans (Phaseolus vulgaris L.) in Latin America and strategies for their control] ,  Plant diseases of dry beans (Phaseolus vulgaris L.) in Latin America and strategies for their control
Book Chapter 1989

Autor: Schwartz, Howard F. Morales, Francisco José

Seeds provide an efficient method for disseminating pathogenic organisms to different locations; more than 50 percent of the major bean diseases are seed borne. Mechanical damage, which may occur during harvesting, threshing and/or planting can affect seed viability, germination, and result in co...

La semilla constituye un metodo eficiente de diseminacion de organismos fitopatogenos a diversas localidades; mas de 50 por ciento de las principales enfermedades del frijol son transmitidas por la semilla. El dano mecanico que ocurre durante la cosecha, trilla y/o siembra tambien puede afectar l...

Enlace original: https://cgspace.cgiar.org/handle/10568/81833

Investigación en Agricultura
Enlace permanente

Schwartz, Howard F. ,  Morales, Francisco José ,  [Seed pathology] ,  Seed pathology
Book Chapter 1989

Autor: Schwartz, Howard F.

Bean plants are exposed to many fungal diseases including Alternaria leaf and pod spot, Ascochyta blight, ashy stem blight (Macrophomina phaseolina), Cercospora leaf spot, Chaetoseptoria leaf spot, Diaporthe pod blight, downy mildew (Phytophthora nicotianae var. parasitica and P. phaseoli), Entyl...

Las plantas de frijol estan expuestas a muchas enfermedades causadas por hongos como la mancha foliar y de la vaina por Alternaria, el anublo por Ascochyta, la pudricion gris del tallo (Macrophomina phaseolina), la mancha foliar por Cercospora, la mancha foliar por Chaetoseptoria, el anublo de la...

Enlace original: https://cgspace.cgiar.org/handle/10568/81823

Investigación en Agricultura
Enlace permanente

Schwartz, Howard F. ,  [Additional fungal pathogens] ,  Additional fungal pathogens
Book Chapter 1989

Autor: Schwartz, Howard F. Steadman, James R.

White mold, caused by the fungus Sclerotinia (Whetzelinia) sclerotiorum, is distributed worldwide and has more than 300 hosts. It infects flowers, cotyledons, seeds, leaves, or injured plant tissue. The disease can be controlled by crop rotation, flooding, reduced seeding rates, fewer irrigations...

El moho blanco causado por el hongo Sclerotinia (Whetzelinia) sclerotiorum se halla presente en todo el mundo, con mas de 300 plantas hospedantes del patogeno; infecta las flores, cotiledones, semillas, hojas o tejido lesionado. El control de la enfermedad se puede hacer por rotacion de cultivos,...

Enlace original: https://cgspace.cgiar.org/handle/10568/81822

Investigación en Agricultura
Enlace permanente

Schwartz, Howard F. ,  Steadman, James R. ,  [White mold] ,  White mold
Journal Article 1979

Autor: Álvarez Ayala, G. Schwartz, Howard F.

Investigations were conducted at CIAT to develop methodology required to evaluate resistance to Isariopsis griseola inherent in bean germplasm and breeding progeny. Abundant sporulation by the pathogen has been achieved by growing isolates in the lab. on V-8 medium incubated at 19 degrees Celsius...

Enlace original: https://cgspace.cgiar.org/handle/10568/88464

Investigación en Agricultura
Enlace permanente
Álvarez Ayala, G. ,  Schwartz, Howard F. ,  [Preliminary investigations of pathogenic variability expressed by Isariopsis griseola] ,  Preliminary investigations of pathogenic variability expressed by Isariopsis griseola
Journal Article 1990

Autor: Hill, J.P. Schwartz, Howard F. Salgado, M. Farrera, R.E.
Enlace original: https://cgspace.cgiar.org/handle/10568/88674

Investigación en Agricultura
Enlace permanente
Hill, J.P. ,  Schwartz, Howard F. ,  Salgado, M. ,  Farrera, R.E. ,  [Effects of sub-lethal applications of propiconazole on bean rust] ,  Effects of sub-lethal applications of propiconazole on bean rust
Journal Article 1982

Autor: Steadman, James R. Schwartz, Howard F.

High incidence of Uromyces phaseoli and Pseudomonas syringae pv. phaseolicola was reported in Pinto and Great Northern bean fields in SW Nebraska and NE Colorado (USA) in 1981. Pinto beans showed other symptoms that, after isolation and tests, were found to be caused by P. syringae pv. syringae. ...

Enlace original: https://cgspace.cgiar.org/handle/10568/88505

Investigación en Agricultura
Enlace permanente
Steadman, James R. ,  Schwartz, Howard F. ,  [Rust and halo blight epidemics, and the first report of bacterial brown spot in western Nebraska and eastern Colorado] ,  Rust and halo blight epidemics, and the first report of bacterial brown spot in western Nebraska and eastern Colorado
Journal Article 1980

Autor: Schwartz, Howard F.

A description is given of the format of the International Bean Rust Nursery (IBRN) established during a 1974 workshop of research workers from various countries. The objectives of the IBRN are to (a) identify cv. and breeding lines resistant to a wide spectrum of the pathogenic potential inherent...

Enlace original: https://cgspace.cgiar.org/handle/10568/88481

Investigación en Agricultura
Enlace permanente
Schwartz, Howard F. ,  [The International Bean Rust Nursery format] ,  The International Bean Rust Nursery format

Selecciona los documentos para visualizarlos

Nombre del archivo Ver recurso
Marcar todos
Limpiar todo