The effect of temperature on infection and a warning system for pear blossom blast caused by Pseudomonas syringae pv. syringae

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dc.contributor.authorLatorre, BA
dc.contributor.authorRioja, ME
dc.contributor.authorLillo, C
dc.date.accessioned2024-01-10T12:43:43Z
dc.date.available2024-01-10T12:43:43Z
dc.date.issued2002
dc.description.abstractBlossom blast caused by Pseudomonas syringae pv. syringae van Hall, is a major disease of pears (Pyrus spp.) in Chile. Freezing temperatures may predispose pears to infection, however, our results demonstrated that blossom blast infection might occur in the absence of frosts, at temperature higher than 5degreesC, provided that the appropriate inoculum concentration, moisture levels and the susceptible bloom stages were available. Regardless of the flower bud stage development, blossom blast was lowest at 5degreesC and highest at 20degreesC. The first symptoms appeared after 2-3 days at 20degreesC, and were delayed 2 days at 5 C. A significant and positive linear regression best explained the relationship between disease incidence and temperature. A warning system, based on temperature and free moisture conditions, was developed and found to be useful for prediction of blossom blast infection in the field. Antibiotic treatments applied after each warning significantly (p<0.05) reduced blossom blast on Packham's Triumph pears. (C) 2002 Elsevier Science Ltd. All rights reserved.
dc.fechaingreso.objetodigital2024-04-11
dc.format.extent7 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1016/S0261-2194(01)00061-8
dc.identifier.issn0261-2194
dc.identifier.urihttps://doi.org/10.1016/S0261-2194(01)00061-8
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/77617
dc.identifier.wosidWOS:000174452400005
dc.information.autorucAgronomía e Ing. Forestal;Latorre B;S/I;98977
dc.issue.numero1
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final39
dc.pagina.inicio33
dc.publisherELSEVIER SCI LTD
dc.revistaCROP PROTECTION
dc.rightsacceso restringido
dc.subjectAsian pear
dc.subjectbacterial canker
dc.subjectEuropean pear
dc.subjectPrunus spp.
dc.subjectPyrus communis
dc.subjectstone fruits
dc.subjectNUCLEATION-ACTIVE BACTERIA
dc.subjectPOPULATION-DYNAMICS
dc.subjectSOUR CHERRY
dc.subjectFLOWER BUDS
dc.subjectTREES
dc.subjectORCHARDS
dc.subjectCANKER
dc.titleThe effect of temperature on infection and a warning system for pear blossom blast caused by Pseudomonas syringae pv. syringae
dc.typeartículo
dc.volumen21
sipa.codpersvinculados98977
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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