Mínimo uso de fungicida para el control de Botrytis cinerea en uva de mesa cv. Thompson Seedless

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dc.contributor.advisorZoffoli, Juan Pablo
dc.contributor.authorGonzález Araya, Javiera
dc.contributor.otherPontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería Forestal
dc.date.accessioned2022-12-06T16:00:52Z
dc.date.available2022-12-06T16:00:52Z
dc.date.issued2022
dc.date.updated2022-12-05T16:38:39Z
dc.descriptionTesis (Magíster en Fisiología y Producción Vegetal)--Pontificia Universidad Católica de Chile, 2022
dc.description.abstractGray mold, caused by Botrytis cinerea, is the main disease in table grape during postharvest. The cultivar Thompson Seedless is especially susceptible and it is exposed to multiple pre-harvest fungicide applications to prevent the infections that occur in flowering and during the berry ripening. Frequently the infection occurs at the flowering phase and remains quiescent until the berries start ripening or even showing an asymptomatic infection until it is expressed during post-harvest. The objectives of the study were to evaluate the effect of reduced application of fungicide, assessed through an infecting predictive model of B. cinerea and two shading conditions on decay and harvest and post-harvest quality of table grapes cv. Thompson Seedless. The fungicide treatment effect was evaluated (reduction of 2 fungicidal applications according to the infection model based in hours of wet foliage and temperature) and the shading effect (shading of 65% and 85%) in a factorial design. The fruit was harvested at two harvest times, and it was evaluated after 60 days in 0° plus 3 days in 20° C. A low gray mold incidence was found, the treatments did not affect the disease development, the model corroborated that the micro-environmental conditions for B. cinerea infection did not achieve a critical value. The use of shadow nets affects the berries quality, the shadowing treatments delay in 7 days the ripening of the berries and increase the incidence of berry splitting during postharvest. The effect of hairline cracks, shatter and bleaching was variable.
dc.format.extent71 páginas
dc.fuente.origenAutoarchivo
dc.identifier.doi10.7764/tesisUC/AGR/65860
dc.identifier.urihttps://doi.org/10.7764/tesisUC/AGR/65860
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/65860
dc.information.autorucFacultad de agronomía e ingeniería forestal ; Zoffoli, Juan Pablo ; 0000-0003-0455-8477 ; 58311
dc.information.autorucFacultad de agronomía e ingeniería forestal ; González Araya, Javiera ; S/I ; 1027581
dc.language.isoes
dc.nota.accesoContenido completo
dc.rightsacceso abierto
dc.subjectBotrytis cinereaes_ES
dc.subjectGray moldes_ES
dc.subjectShadinges_ES
dc.subjectVitis viniferaes_ES
dc.subjectThompson seedlesses_ES
dc.subject.ddc570
dc.subject.deweyBiologíaes_ES
dc.subject.ods03 Good health and well-being
dc.subject.odspa03 Salud y bienestar
dc.titleMínimo uso de fungicida para el control de Botrytis cinerea en uva de mesa cv. Thompson Seedlesses_ES
dc.typetesis de maestría
sipa.codpersvinculados58311
sipa.codpersvinculados1027581
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