Influence of Fusarium spp. isolate and inoculum density on resistance screening tests in onion

Autores
Caligiore Gei, Pablo Fernando; Valdez, Jorge Gustavo; Piccolo, Ricardo José; Galmarini, Claudio Romulo
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Fusarium basal rot (FBR), which is caused predominantly by Fusarium oxysporum and F. proliferatum, is the main limiting factor of onion crops. Resistant cultivars obtained in other countries do not behave as such in Argentina crop fields. The cultivars AntárticaINTA, Grano de Oro-Seminis, Valcatorce-INTA and TW-2007 (reported as tolerant) were tested with five Fusarium spp. isolates, using four inoculum concentrations. Disease incidence was recorded along 28 days and the area under disease progress curve was calculated. Diverse epidemiological models were fitted to experimental data. There were significant differences in the resistance level among cultivars, with TW-2007 being the most tolerant. Local Fusarium isolates were the most virulent ones. The concentration of 10,000 microconidia/ gram was the most lethal for all isolates. The absence of resistance to Fusarium in the four cultivars tested was confirmed. Inoculum concentration and isolate are critical factors in screening for resistance to FBR. Breeding based on the selection of genotypes against low virulence strains of Fusarium spp. and the presence of more aggressive strains in local fields may be one of the causes why varieties reported as resistant or tolerant behave as susceptible in our environment. Key words: Allium cepa, breeding, Fusarium basal rot, inoculum concentration.
Fil: Caligiore Gei, Pablo Fernando. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Cuyo Mendoza-San Juan. Estación Experimental Agropecuaria La Consulta; Argentina
Fil: Valdez, Jorge Gustavo. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Cuyo Mendoza-San Juan. Estación Experimental Agropecuaria La Consulta; Argentina
Fil: Piccolo, Ricardo José. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Cuyo Mendoza-San Juan. Estación Experimental Agropecuaria La Consulta; Argentina
Fil: Galmarini, Claudio Romulo. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Cuyo Mendoza-San Juan. Estación Experimental Agropecuaria La Consulta; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mendoza; Argentina
Materia
ALLIUM CEPA L.
FUSARIUM BASAL ROT
BREEDING
SCREENING
INOCULUM CONCENTRATION
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/10331
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/10331
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Influence of Fusarium spp. isolate and inoculum density on resistance screening tests in onionCaligiore Gei, Pablo FernandoValdez, Jorge GustavoPiccolo, Ricardo JoséGalmarini, Claudio RomuloALLIUM CEPA L.FUSARIUM BASAL ROTBREEDINGSCREENINGINOCULUM CONCENTRATIONhttps://purl.org/becyt/ford/4.1https://purl.org/becyt/ford/4Fusarium basal rot (FBR), which is caused predominantly by Fusarium oxysporum and F. proliferatum, is the main limiting factor of onion crops. Resistant cultivars obtained in other countries do not behave as such in Argentina crop fields. The cultivars AntárticaINTA, Grano de Oro-Seminis, Valcatorce-INTA and TW-2007 (reported as tolerant) were tested with five Fusarium spp. isolates, using four inoculum concentrations. Disease incidence was recorded along 28 days and the area under disease progress curve was calculated. Diverse epidemiological models were fitted to experimental data. There were significant differences in the resistance level among cultivars, with TW-2007 being the most tolerant. Local Fusarium isolates were the most virulent ones. The concentration of 10,000 microconidia/ gram was the most lethal for all isolates. The absence of resistance to Fusarium in the four cultivars tested was confirmed. Inoculum concentration and isolate are critical factors in screening for resistance to FBR. Breeding based on the selection of genotypes against low virulence strains of Fusarium spp. and the presence of more aggressive strains in local fields may be one of the causes why varieties reported as resistant or tolerant behave as susceptible in our environment. Key words: Allium cepa, breeding, Fusarium basal rot, inoculum concentration.Fil: Caligiore Gei, Pablo Fernando. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Cuyo Mendoza-San Juan. Estación Experimental Agropecuaria La Consulta; ArgentinaFil: Valdez, Jorge Gustavo. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Cuyo Mendoza-San Juan. Estación Experimental Agropecuaria La Consulta; ArgentinaFil: Piccolo, Ricardo José. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Cuyo Mendoza-San Juan. Estación Experimental Agropecuaria La Consulta; ArgentinaFil: Galmarini, Claudio Romulo. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Cuyo Mendoza-San Juan. Estación Experimental Agropecuaria La Consulta; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mendoza; ArgentinaSociedad Brasileira Fitopathologia2014-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/10331Caligiore Gei, Pablo Fernando; Valdez, Jorge Gustavo; Piccolo, Ricardo José; Galmarini, Claudio Romulo; Influence of Fusarium spp. isolate and inoculum density on resistance screening tests in onion; Sociedad Brasileira Fitopathologia; Tropical Plant Pathology; 39; 1; 2-2014; 19-271982-56761983-2052enginfo:eu-repo/semantics/altIdentifier/url/http://ref.scielo.org/2dq2bxinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:36:46Zoai:ri.conicet.gov.ar:11336/10331instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 15:36:46.518CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Influence of Fusarium spp. isolate and inoculum density on resistance screening tests in onion
title Influence of Fusarium spp. isolate and inoculum density on resistance screening tests in onion
spellingShingle Influence of Fusarium spp. isolate and inoculum density on resistance screening tests in onion
Caligiore Gei, Pablo Fernando
ALLIUM CEPA L.
FUSARIUM BASAL ROT
BREEDING
SCREENING
INOCULUM CONCENTRATION
title_short Influence of Fusarium spp. isolate and inoculum density on resistance screening tests in onion
title_full Influence of Fusarium spp. isolate and inoculum density on resistance screening tests in onion
title_fullStr Influence of Fusarium spp. isolate and inoculum density on resistance screening tests in onion
title_full_unstemmed Influence of Fusarium spp. isolate and inoculum density on resistance screening tests in onion
title_sort Influence of Fusarium spp. isolate and inoculum density on resistance screening tests in onion
dc.creator.none.fl_str_mv Caligiore Gei, Pablo Fernando
Valdez, Jorge Gustavo
Piccolo, Ricardo José
Galmarini, Claudio Romulo
author Caligiore Gei, Pablo Fernando
author_facet Caligiore Gei, Pablo Fernando
Valdez, Jorge Gustavo
Piccolo, Ricardo José
Galmarini, Claudio Romulo
author_role author
author2 Valdez, Jorge Gustavo
Piccolo, Ricardo José
Galmarini, Claudio Romulo
author2_role author
author
author
dc.subject.none.fl_str_mv ALLIUM CEPA L.
FUSARIUM BASAL ROT
BREEDING
SCREENING
INOCULUM CONCENTRATION
topic ALLIUM CEPA L.
FUSARIUM BASAL ROT
BREEDING
SCREENING
INOCULUM CONCENTRATION
purl_subject.fl_str_mv https://purl.org/becyt/ford/4.1
https://purl.org/becyt/ford/4
dc.description.none.fl_txt_mv Fusarium basal rot (FBR), which is caused predominantly by Fusarium oxysporum and F. proliferatum, is the main limiting factor of onion crops. Resistant cultivars obtained in other countries do not behave as such in Argentina crop fields. The cultivars AntárticaINTA, Grano de Oro-Seminis, Valcatorce-INTA and TW-2007 (reported as tolerant) were tested with five Fusarium spp. isolates, using four inoculum concentrations. Disease incidence was recorded along 28 days and the area under disease progress curve was calculated. Diverse epidemiological models were fitted to experimental data. There were significant differences in the resistance level among cultivars, with TW-2007 being the most tolerant. Local Fusarium isolates were the most virulent ones. The concentration of 10,000 microconidia/ gram was the most lethal for all isolates. The absence of resistance to Fusarium in the four cultivars tested was confirmed. Inoculum concentration and isolate are critical factors in screening for resistance to FBR. Breeding based on the selection of genotypes against low virulence strains of Fusarium spp. and the presence of more aggressive strains in local fields may be one of the causes why varieties reported as resistant or tolerant behave as susceptible in our environment. Key words: Allium cepa, breeding, Fusarium basal rot, inoculum concentration.
Fil: Caligiore Gei, Pablo Fernando. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Cuyo Mendoza-San Juan. Estación Experimental Agropecuaria La Consulta; Argentina
Fil: Valdez, Jorge Gustavo. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Cuyo Mendoza-San Juan. Estación Experimental Agropecuaria La Consulta; Argentina
Fil: Piccolo, Ricardo José. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Cuyo Mendoza-San Juan. Estación Experimental Agropecuaria La Consulta; Argentina
Fil: Galmarini, Claudio Romulo. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Cuyo Mendoza-San Juan. Estación Experimental Agropecuaria La Consulta; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mendoza; Argentina
description Fusarium basal rot (FBR), which is caused predominantly by Fusarium oxysporum and F. proliferatum, is the main limiting factor of onion crops. Resistant cultivars obtained in other countries do not behave as such in Argentina crop fields. The cultivars AntárticaINTA, Grano de Oro-Seminis, Valcatorce-INTA and TW-2007 (reported as tolerant) were tested with five Fusarium spp. isolates, using four inoculum concentrations. Disease incidence was recorded along 28 days and the area under disease progress curve was calculated. Diverse epidemiological models were fitted to experimental data. There were significant differences in the resistance level among cultivars, with TW-2007 being the most tolerant. Local Fusarium isolates were the most virulent ones. The concentration of 10,000 microconidia/ gram was the most lethal for all isolates. The absence of resistance to Fusarium in the four cultivars tested was confirmed. Inoculum concentration and isolate are critical factors in screening for resistance to FBR. Breeding based on the selection of genotypes against low virulence strains of Fusarium spp. and the presence of more aggressive strains in local fields may be one of the causes why varieties reported as resistant or tolerant behave as susceptible in our environment. Key words: Allium cepa, breeding, Fusarium basal rot, inoculum concentration.
publishDate 2014
dc.date.none.fl_str_mv 2014-02
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/10331
Caligiore Gei, Pablo Fernando; Valdez, Jorge Gustavo; Piccolo, Ricardo José; Galmarini, Claudio Romulo; Influence of Fusarium spp. isolate and inoculum density on resistance screening tests in onion; Sociedad Brasileira Fitopathologia; Tropical Plant Pathology; 39; 1; 2-2014; 19-27
1982-5676
1983-2052
url http://hdl.handle.net/11336/10331
identifier_str_mv Caligiore Gei, Pablo Fernando; Valdez, Jorge Gustavo; Piccolo, Ricardo José; Galmarini, Claudio Romulo; Influence of Fusarium spp. isolate and inoculum density on resistance screening tests in onion; Sociedad Brasileira Fitopathologia; Tropical Plant Pathology; 39; 1; 2-2014; 19-27
1982-5676
1983-2052
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://ref.scielo.org/2dq2bx
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Sociedad Brasileira Fitopathologia
publisher.none.fl_str_mv Sociedad Brasileira Fitopathologia
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1846083490024521728
score 13.22299

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