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Title

Seed Morphology in the Vitaceae Based on Geometric Models

AuthorsMartín Gómez, José Javier; Gutiérrez del Pozo, Diego ; Ucchesu, Mariano; Bacchetta, Gianluigi; Cabello Sáenz de Santamaría, Félix; Tocino, Ángel; Cervantes, Emilio
KeywordsGeometric curves
Grapes
Heart-shaped
Image analysis
J index
Morphology
Pips
Shape
Vitis
Issue Date2020
PublisherMultidisciplinary Digital Publishing Institute
CitationAgronomy 10 (5): 739 (2020)
AbstractMorphometric methods based on artificial vision algorithms provide measurements for magnitudes descriptive of seed images (i.e., the length, width, area, and surface circularity index). Nevertheless, their results frequently omit the resemblance of the images to geometric figures that may be used as models. A complementary method based on the comparison of seed images with geometric models is applied to seeds of <i>Vitis</i> spp. The J index gives the percentage of similarity between a seed image and the model. Seven new geometric models are described based on the heart-shaped and piriform curves. Seeds of different species, subspecies and cultivars of <i>Vitis</i> adjust to different models. Models 1 and 3, the heart curve and the water drop, adjust better to seeds of <i>V. amurensis, V. labrusca</i> and <i>V. rupestris</i> than to <i>V. vinifera.</i> Model 6, the Fibonacci’s pear, adjusts well to seeds of <i>V. vinifera</i>, in general, and better to <i>V. vinifera</i> ssp. <i>vinifera</i> than to <i>V. vinifera</i> ssp. <i>sylvestris</i>. Seed morphology in species of <i>Cissus</i> and <i>Parthenocissus,</i> two relatives of <i>Vitis</i> in the Vitaceae, is also analysed. Geometric models are a tool for the description and identification of species and lower taxonomic levels complementing the results of morphometric analysis.
Description16 páginas, 8 figuras, 6 tablas
Publisher version (URL)http://dx.doi.org/doi:10.3390/agronomy10050739
URIhttp://hdl.handle.net/10261/212495
DOIhttp://dx.doi.org/10.3390/agronomy10050739
E-ISSN2073-4395
Appears in Collections:(IRNASA) Artículos
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