Vista Equipo: Variation in virulence and resistance in the bean-bean rust pathosystem in Ecuador

Variation in virulence and resistance in the bean-bean rust pathosystem in Ecuador

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 on...

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Autores Principales:	Ochoa L., José, Cruz, Elena, Murillo I., Angel, Danial, Daniel L.
Formato:	Artículos
Lenguaje:	en
Publicado:	2018
Materias:	FREJOL PHASEOLUS VULGARIS ROYA PATOGÉNESIS RESISTENCIA PARCIAL RESISTENCIA CUANTITATIVA RESISTENCIA ESPECÍFICA DE RAZA UROMYCES APPENDICULATUS VIRULENCIA LEGUMINOSAS
Acceso en línea:	http://repositorio.iniap.gob.ec/handle/41000/4814
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spelling	ir-:41000-48142018-11-07T17:02:09Z Variation in virulence and resistance in the bean-bean rust pathosystem in Ecuador Euphytica 153:313–319 Ochoa L., José Cruz, Elena Murillo I., Angel Danial, Daniel L. FREJOL PHASEOLUS VULGARIS ROYA PATOGÉNESIS RESISTENCIA PARCIAL RESISTENCIA CUANTITATIVA RESISTENCIA ESPECÍFICA DE RAZA UROMYCES APPENDICULATUS VIRULENCIA LEGUMINOSAS 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. 2018-02-09T20:59:57Z 2018-02-09T20:59:57Z 2007 Revista Artículo *EC-INIAP-BEESC-MGC. Quito (Euphytica 153:313–319) http://repositorio.iniap.gob.ec/handle/41000/4814 en p. 313-319 application/pdf E. E. Santa Catalina
institution	INIAP
collection	Repositorio INIAP
biblioteca	Biblioteca INIAP
language	en
format	Artículos
topic	FREJOL PHASEOLUS VULGARIS ROYA PATOGÉNESIS RESISTENCIA PARCIAL RESISTENCIA CUANTITATIVA RESISTENCIA ESPECÍFICA DE RAZA UROMYCES APPENDICULATUS VIRULENCIA LEGUMINOSAS
spellingShingle	FREJOL PHASEOLUS VULGARIS ROYA PATOGÉNESIS RESISTENCIA PARCIAL RESISTENCIA CUANTITATIVA RESISTENCIA ESPECÍFICA DE RAZA UROMYCES APPENDICULATUS VIRULENCIA LEGUMINOSAS Ochoa L., José Cruz, Elena Murillo I., Angel Danial, Daniel L. Variation in virulence and resistance in the bean-bean rust pathosystem in Ecuador
description	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.
author	Ochoa L., José Cruz, Elena Murillo I., Angel Danial, Daniel L.
author_facet	Ochoa L., José Cruz, Elena Murillo I., Angel Danial, Daniel L.
author_sort	Ochoa L., José
title	Variation in virulence and resistance in the bean-bean rust pathosystem in Ecuador
title_short	Variation in virulence and resistance in the bean-bean rust pathosystem in Ecuador
title_full	Variation in virulence and resistance in the bean-bean rust pathosystem in Ecuador
title_fullStr	Variation in virulence and resistance in the bean-bean rust pathosystem in Ecuador
title_full_unstemmed	Variation in virulence and resistance in the bean-bean rust pathosystem in Ecuador
title_sort	variation in virulence and resistance in the bean-bean rust pathosystem in ecuador
publishDate	2018
url	http://repositorio.iniap.gob.ec/handle/41000/4814
_version_	1635512328151629824
score	11,871979

Variation in virulence and resistance in the bean-bean rust pathosystem in Ecuador

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