Characterization of Morphological Properties of Apricot Stones by Image Processing
Keywords:
image processing, shape characteristics, morphology, apricot stone, cultivar identificationAbstract
The morphological characteristics of the apricot stones of different cultivars show much higher variability, as it is typical in case of other fruit species. The variety of forms is easy to observe sensorially (directly or using a reading-glass), however it’s hard to describe exactly, in a quantitative way. The widely accepted international standard (UPOV) is based on comparison with standard cultivars, the results are given in a special point system, developed for this purpose. The information, provided by this evaluation system is not suitable for identification of the cultivars, but it can be used for distinguishing two sample sets. The aim of our research work was to develop quantitative methods for description of the stones. The statistically validated quantitative parameters offer the possibility of applying them as morphological markers for identification of the cultivars or for other genetic analyses without leaning on any standard samples as references. The traditional measurement methods are able to determine only the simplest geometrical parameters of the samples (such as length, width or thickness). However, the special characteristics, connected to the different cultivars, are related to much more complex shape parameters. Computer based machine vision system and image processing was applied for quick, automatic shape feature extraction and determination of new, quantitative shape parameters to characterize stones of 6 tested cultivars.
References
Asma, B. M., Ozturk, K. (2005): Analysis of morphological, pomological and yield characteristics of some apricot germplasm in Turkey. Genet. Resour. Crop. Evol., 52. 305–313. https://doi.org/10.1007/s10722-003-1384-5
Badenes, M. L., Mart´ınez-Calvo, J., Ll´acer, G. (1998): Analysis of apricot germplasm from the European ecogeographical group. Euphytica, 102. 93–99. https://doi.org/10.1023/A:1018332312570
Bailey, L. H. (1916): Prunus. In: The standard cyclopedia of horticulture, 5. P–R. Mount Pleasant Press, J. Horace McFarland Co., Harrisburg, PA, 2822–2845. p
Firtha, F (2007): Digitális képfeldolgozás, hiperspektrális mérési módszer. In: Balla Csaba, Síró István (szerk): Élelmiszer-biztonság és minőség III. Fogyasztóvédelem és élelmiszervizsgálat. Mezőgazda Kiadó: Budapest. 296–301. p.
Genovese, A, Ugliano, M, Pessina, R, Gambuti, A, Piombino, P, Moio, L (2004): Comparison of the aroma compounds in apricot (Prunus armeniaca L. cv Pellecchiella) and apple (Malus pumila L. cv Annurca) raw distillates. Ital. J. Food Sci., 16. 185–196.
Hou, H. Y. (1983): Vegetation of China with reference to its geographical distribution. Ann. Missouri Bot. Gard., 70(3), 509–548. https://doi.org/10.2307/2992085
IPGRI (1980): International Plant Genetic Resources Institute: List of descriptors for apricot (Prunus armeniaca L.). EUCARPIA meeting on Tree Fruit Breeding, Angers, France, 3–7 September 1979.
Joshi, V. K., Bhutani, V. P., Sharma, R. C. (1990): The effect of dilution and addition of nitrogen source on chemical, mineral and sensory qualities of wild apricot wine. American J. Enol. Vit., 41(3), 229–231. https://doi.org/10.5344/ajev.1990.41.3.229
Rehder, A (1940): Manual of cultivated trees and shrubs hardy in North America, exclusive of the subtropical and warmer temperate regions, 2nd revised and enlarged edition. Macmillan, New York, NY, USA
Szűcs, I. (2002): Alkalmazott statisztika, Agroinform Kiadó, Budapest
UPOV (2008): Protocol for Distinctness, Uniformity and Stability Tests: Apricot. Community Plant Variety Office. CPVO-TP/070/2 Final
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Copyright (c) 2011 Felföldi József, Firtha Ferenc, Hermán Rita, Pedryc Andrzej
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