Visual Characterization of the Esthetic Quality of the Rosebush

Abstract

Since its introduction into the analysis of foodstuffs, sensory analysis has been applied in several contexts. This work seeks to widen the field of sensory analysis to include ornamental plants and to characterize their esthetic quality. Using the rosebush as a plant model, an attribute generation protocol is proposed in order to develop a conventional profile of such products. Further to statistical treatments aiming to verify the unambiguity, discrimination and independence of these attributes, a reduced list of 18 attributes has been set up. These attributes make up the very core of the conventional profiling studies currently undertaken. PRACTICAL APPLICATIONS The generation of a list of attributes that is not too long, in order to describe plants as exhaustively as possible, is one of the first steps of extending sensory analysis methods to ornamental horticulture. This list will be used to train a panel of assessors to characterize the rosebush. Two applications are in progress. The first application consists of evaluating the impact of nitrogen nutrition on the visual quality of the rosebush. The second has the objective of determining which characteristics influence consumer preferences.

Assessing the visual aspect of rotating virtual rose bushes by a labeled sorting task

“…These differences are mainly based on the general appearance of the plants rather than on precise characteristics of the aerial organs. Except for the buds, which are barely visible, and for the thorns, not apparent on these virtual plants, as the flowers, the vocabulary obtained and used to interpret the product mapping is effectively reliable for the attributes dealt with Boumaza et al (2009Boumaza et al ( , 2010 obtained by another methodology for several cultivars and used for the 'Radrazz' alone (Huché-Thélier et al, 2011).This stresses the need to enhance some virtual organ faithfulness to be more exhaustive. Nonetheless, in these studies, the plant height was not being part of the sensory lexicon as reported here.…”

“…Recently, Boumaza et al (2009) transposed the sensory approach to the ornamental field with one of the most famous ornamental plants as model: the rose bush. This approach made it possible to select sensory attributes according their unambiguity, discrimination power, and independence using plants directly as stimuli.…”

Potencial ornamental de Baccharis milleflora e Baccharis tridentatacomo folhagem de corte

“…Entretanto, mesmo com a enorme biodiversidade brasileira com potencial para uso ornamental, a prospecção da flora nativapara este fim ainda se encontra bastante incipiente (STUMPF et al, 2008). Além disso, para definição de uma planta como ornamental são necessárias avaliações de suas características estéticas, que preferencialmente devem ser realizadas por profissionais ligados à floricultura (HEIDEN et al, 2006;BOUMAZA et al, 2009;BOUMAZA et al, 2010).…”

Behavior and postharvest evaluation criteria of Vriesea incurvata Gaudich. (Bromeliaceae) floral scapes

“…These scales allow the reduction of subjectivity of postharvest estimates, providing relevant information of the product in order to improve its quality (BOUMAZA et al, 2009).…”

“…(ALAEY et al, 2011). Aesthetic characteristics determine the products commercial perception, and morphological measures such as plant or organ size, number of flowers, leaves and flowers colors, etc., can be used as deciding factor to use as cut flower (BOUMAZA et al, 2009 However, there are numerous prerequisites or postharvest evaluation criteria and depending on the inherent characteristics of each species, these can influence behavior and senescence (RANI and SINGH, 2014).…”