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Enhancement of post-harvest shelf life of nectarines (Prunus persica (L.) Batsch var. nectarina) using hexanal

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Title: Enhancement of post-harvest shelf life of nectarines (Prunus persica (L.) Batsch var. nectarina) using hexanal
Author: Krishna Kumar, Shanthanu
Department: Department of Plant Agriculture
Program: Plant Agriculture
Advisor: Subramanian, Jayasankar
Abstract: This research investigated the effects of an ‘Enhanced Freshness Formulation’ (EFF) with hexanal as the key ingredient to improve the shelf life of nectarines. Pre-harvest sprays of EFF on ‘Fantasia’ nectarines, conducted at two commercial orchards in the Niagara region, ON, showed a general improvement in shelf life. Application of EFF delayed the incidence of chilling injury symptoms (internal browning and mealiness/woolliness) by one week. Treated fruits maintained significantly higher firmness until 38 d post-harvest. qRT-PCR was conducted to evaluate the expression levels of 22 genes potentially involved in ripening, to understand the regulatory effects of the hexanal formulation. EFF application induced a highly significant reduction in transcript levels of three Phospholipase D genes, five N-glycoprotein group genes, and other genes involved in ripening and softening processes. These findings indicate that a delay in the ripening process caused by EFF may be associated with the modulation of the expression of key ripening-related genes, enhancing shelf life and quality of nectarines.
URI: http://hdl.handle.net/10214/12941
Date: 2018-04
Rights: Attribution-NoDerivs 2.5 Canada
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Attribution-NoDerivs 2.5 Canada Except where otherwise noted, this item's license is described as Attribution-NoDerivs 2.5 Canada