African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6754

Full Length Research Paper

Basic physical properties of fruits in loquat (Eriobotrya Japonica (Thunb. Lindl.) cultivars and genotypes determined by both classical method and digital image processing

Mustafa G. BOYDAS1*, Bahadir SAYINCI1, Sadiye GOZLEKCI2, Ismail OZTURK1, and Sezai ERCISLI3
  1Agricultural Faculty, Department of Agricultural Machinery, Ataturk University, 25240 Erzurum-Turkey. 2Agricultural Faculty, Department of Horticulture, Akdeniz University, 07070 Antalya-Turkey. 3Agricultural Faculty, Department of Horticulture, Ataturk University, 25240 Erzurum-Turkey.
Email: [email protected]

  •  Accepted: 12 July 2012
  •  Published: 31 July 2012



In this study, dimensions, mass and shape characteristics of five commercial loquat cultivars (‘Akko XIII’, ‘Champagne de Grasse’, ‘Guzelyurt 6’, ‘Hafifcukurgobek’ and ‘Sayda’) and two genotypes (‘KKTC3’ and ‘KKTC4’) were determined. Physical properties such as dimension and shape were determined both by digital caliper and image processing to compare each other. Among the cultivars and genotypes tested, ‘KKTC4’ (58.88 mm) had the highest length while KKTC3 had the highest major diameter, minor diameter, mass, geometric mean diameter, surface area and volume, with a mean of 46.31 mm, 43.61 mm, 60.12 g, 48.69 mm, 74.82 cm2, and 61.25 cm3, respectively. The greatest value of elongation and the smallest value of sphericity were obtained from ‘Akko XII’ with 1.33, and ‘Akko XII’ was more oblong than the other cultivars and genotypes. The smallest value of elongation and the greatest value of sphericity were obtained from ‘Sayda’ with 1.12 and 91.16%, respectively. The results of comparison between the digital caliper and image processing showed that using the image processing method could potentially be rapid and alternative to the conventional measurement method.


Key words: Eriobotrya japonica, image processing, loquat, physical properties.