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dc.contributor.authorMehra, Lucky Kumar
dc.date.accessioned2014-03-04T18:59:52Z
dc.date.available2014-03-04T18:59:52Z
dc.date.issued2010-12
dc.identifier.othermehra_lucky_k_201012_ms
dc.identifier.urihttp://purl.galileo.usg.edu/uga_etd/mehra_lucky_k_201012_ms
dc.identifier.urihttp://hdl.handle.net/10724/26968
dc.description.abstractPostharvest fungal decay is a major concern in blueberry production. Because the risk of infection is increased by fruit bruising, which in turn is increased by machine-harvest, fruit from early-maturing, high-value southern highbush blueberries are not harvested mechanically for the fresh market. This may change fundamentally with the advent of southern highbush genotypes with crisp-textured berries, i.e., fruit with qualitatively firmer flesh and/or skin. In field experiments, machine-harvested crispy fruit had the same or lower natural decay incidence as hand-picked conventional fruit after cold storage. Across cultivar and harvest method treatments, decay incidence was inversely related to fruit firmness. Several plant essential oils were evaluated as postharvest biofumigants to manage fungal decay during cold storage. The plant oil-derived fungicide Sporatec, applied as a biofumigant, reduced decay significantly in most cases. However, biofumigation resulted in significant negative impacts on sensory attributes and no beneficial effects on antioxidant activity of treated berries.
dc.languageeng
dc.publisheruga
dc.rightspublic
dc.subjectAlternaria
dc.subjectAureobasidium pullulans
dc.subjectBotrytis cinerea
dc.subjectColletotrichum
dc.subjectpostharvest decay
dc.subjectdisease management
dc.subjectblueberry
dc.subjectessential oil
dc.titleFungal infection and postharvest quality of blueberry fruit in relation to berry flesh type, harvest method, and postharvest biofumigation
dc.typeThesis
dc.description.degreeMS
dc.description.departmentPlant Pathology
dc.description.majorPlant Pathology
dc.description.advisorHarald Scherm
dc.description.committeeHarald Scherm
dc.description.committeeDan MacLean
dc.description.committeePhillip Brannen


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