Predictive Method for Correct Identification of Archaeological Charred Grape Seeds: Support for Advances in Knowledge of Grape Domestication Process
| Autor: | Giacomo Paglietti, Gianfranco Venora, Oscar Grillo, Martino Orru, Mariano Ucchesu, Andrea Ardu, Gianluigi Bacchetta |
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| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
010506 paleontology Grapes Imaging Techniques Social Sciences lcsh:Medicine Crops Plant Science Biology Research and Analysis Methods Linear Discriminant Analysis 01 natural sciences Fruits Mathematical and Statistical Techniques Historical Archaeology Botany Vitis Statistical Methods Vitis vinifera Domestication lcsh:Science Flowering Plants Grape seed 0105 earth and related environmental sciences Multidisciplinary Plant Anatomy Morphometry lcsh:R Organisms Biology and Life Sciences Agriculture Plants Archaeology Italy Archaeological Dating Seeds Physical Sciences Grapevine Identification (biology) lcsh:Q Viticulture Mathematics Statistics (Mathematics) Research Article Crop Science 010606 plant biology & botany |
| Zdroj: | PLoS ONE, Vol 11, Iss 2, p e0149814 (2016) PLoS ONE |
| ISSN: | 1932-6203 |
| Popis: | The identification of archaeological charred grape seeds is a difficult task due to the alteration of the morphological seeds shape. In archaeobotanical studies, for the correct discrimination between Vitis vinifera subsp. sylvestris and Vitis vinifera subsp. vinifera grape seeds it is very important to understand the history and origin of the domesticated grapevine. In this work, different carbonisation experiments were carried out using a hearth to reproduce the same burning conditions that occurred in archaeological contexts. In addition, several carbonisation trials on modern wild and cultivated grape seeds were performed using a muffle furnace. For comparison with archaeological materials, modern grape seed samples were obtained using seven different temperatures of carbonisation ranging between 180 and 340ºC for 120 min. Analysing the grape seed size and shape by computer vision techniques, and applying the stepwise linear discriminant analysis (LDA) method, discrimination of the wild from the cultivated charred grape seeds was possible. An overall correct classification of 93.3% was achieved. Applying the same statistical procedure to compare modern charred with archaeological grape seeds, found in Sardinia and dating back to the Early Bronze Age (2017-1751 2σ cal. BC), allowed 75.0% of the cases to be identified as wild grape. The proposed method proved to be a useful and effective procedure in identifying, with high accuracy, the charred grape seeds found in archaeological sites. Moreover, it may be considered valid support for advances in the knowledge and comprehension of viticulture adoption and the grape domestication process. The same methodology may also be successful when applied to other plant remains, and provide important information about the history of domesticated plants. |
| Databáze: | OpenAIRE |
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