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Tipo de Documento: Revista
Artículo
Autor : Ochoa L., José
Cruz, Elena
Murillo I., Angel
Danial, Daniel L.
Título : Variation in virulence and resistance in the bean-bean rust pathosystem in Ecuador
Título de la serie: Euphytica 153:313–319
Palabras clave : FREJOL;PHASEOLUS VULGARIS;ROYA;PATOGÉNESIS;RESISTENCIA PARCIAL;RESISTENCIA CUANTITATIVA;RESISTENCIA ESPECÍFICA DE RAZA;UROMYCES APPENDICULATUS;VIRULENCIA;LEGUMINOSAS
Fecha de publicación : 2007
Código: *EC-INIAP-BEESC-MGC. Quito (Euphytica 153:313–319)
Páginas: p. 313-319
Estación: E. E. Santa Catalina
Resumen : Twenty two Uromyces appendiculatus isolates were tested on 20 differential and 25 Ecuadorian Phaseolus vulgaris cultivars in the seedling stage. Based on the infection types 20 races could be discerned. The Ecuadorian cultivars differed greatly in their reaction to the isolates, from resistant to only one isolate (‘Red Small Garden’) to resistant to all isolates (‘G2333’). The isolates showed a wide range of virulence to the Ecuadorian cultivars, from virulent to only two cultivars (isolate 13) to virulent to 21 cultivars (isolates 5 and 23). Seven cultivars with a basically susceptible infection type appeared to differ greatly in quantitative resistance when tested in three consecutive crop cycles. The disease severities in percentage leaf area affected averaged over the three cycles ranged between 83.9% for ‘Red Small Garden’ and 13.1% for ‘INIAP-414’. Race-specific resistance does not seem an advisable breeding strategy, but the quantitative resistance offers a good alternative.
Citación : Ochoa L., J., Cruz, E., Murillo I., A., & Danial, D.L. (2007). Variation in virulence and resistance in the bean-bean rust pathosystem in Ecuador. Euphytica , 153, 313–319. doi: 10.1007/s10681-006-9143-2
URI : http://repositorio.iniap.gob.ec/handle/41000/4814
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