Physiological characterization of advanced table grape segregants against the application of gibberellic acid (GA3)

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dc.contributor.advisorArce Johnson, Jorge Patricio
dc.contributor.authorBenítez Hernández, Solange Viviana
dc.contributor.otherPontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería Forestal
dc.date2024-04-07
dc.date.accessioned2022-04-18T16:36:30Z
dc.date.issued2022
dc.date.updated2022-04-12T21:15:34Z
dc.descriptionTesis (Doctor en Ciencias de la Agricultura)--Pontificia Universidad Católica de Chile, 2022
dc.description.abstractGibberellin (GA3) applications is one of the essential management practices for table grapes. This study compared three advanced table grape segregants obtained from the breeding program (Consorcio de la Fruta-PUC). Given their different genetic backgrounds, the harvest of these grapes differs both in their seasonality and in their response to GA3 applications. Good quality berries were obtained with less quantity and frequency of GA3 applications (>25 ppm). The effect of GA3 applications on the evaluated segregants showed an increase in weight of 20-40%, in size of 10-30% of the berries, and finally, a decrease in seed size of 30-80%. At the histological level, it was found that in the berries treated with GA3 at 7-30 daa, all the segregants showed an increase in the number of cells of 30-55% and in the size of the mesocarp at 22% with respect to the control. In the physiological analyses, the segregants showed an increase in stomatal conductance and transpiration accompanied by a foliar supply of potassium in the plants treated with GA3. Despite the differences between the segregants in terms of response to GA, each displays characteristics that make it suitable to be registered as a new variety. One possible contribution of this study would be to indicate that all segregants need fewer GA applications; furthermore, the influence of climatic and some physiological parameters that may be decisive in the effect of GA3
dc.description.version2024-04-07
dc.format.extent170 páginas
dc.fuente.origenAutoarchivo
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/63670
dc.information.autorucFacultad de Ciencias Biológicas ; Arce Johnson, Jorge Patricio ; S7I ; 54718
dc.information.autorucFacultad de Agronomía e Ingeniería Forestal ; Benítez Hernández, Solange Viviana ; S/I ; 1031367
dc.language.isoen
dc.nota.accesocontenido completo
dc.rightsacceso abierto
dc.subjectGA3 applicationses_ES
dc.subjectTable grape segregantses_ES
dc.subjectSize berryes_ES
dc.subjectClimatees_ES
dc.subjectHistologyes_ES
dc.subjectPhysiology parameterses_ES
dc.subject.ddc634.8
dc.subject.deweyTecnologíaes_ES
dc.subject.otherUva de mesa - Efecto del ácido giberélicoes_ES
dc.subject.otherUvas - Anatomía e histologíaes_ES
dc.titlePhysiological characterization of advanced table grape segregants against the application of gibberellic acid (GA3)es_ES
dc.typetesis doctoral
sipa.codpersvinculados54718
sipa.codpersvinculados1031367
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