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Storage of ‘Jonagold’ apples

Scientia Horticulturae, 1987
Abstract ‘Jonagold’ apples, grown in south-east England, were picked on 14 and 27 October and stored at 1.5°C in 8% CO 2 + 13% O 2 or 2 + 2% O 2 . Samples picked on 14 October were also stored at 1.5°C in 2 + 1.25% O 2 . Ground colour and flesh firmness, measured instrumentally, were retained least effectively by 2% O 2 , and the incidence of ...
exaly   +2 more sources

Bruise detection on ‘Jonagold’ apples using hyperspectral imaging

Postharvest Biology and Technology, 2005
Abstract A hyperspectral imaging system has been built within the wavelength range of 400–1000 nm for detecting bruises on ‘Jonagold’ apples. A total of 160 apples, i.e., sound ( n  = 65), impact bruise ( n  = 80) and drop bruise ( n  = 15) were analysed.
Juan Xing, Josse De Baerdemaeker
exaly   +2 more sources

Stem and calyx recognition on ‘Jonagold’ apples by pattern recognition

Journal of Food Engineering, 2007
Abstract In this paper, a novel method to recognize stem or calyx regions of ‘Jonagold’ apples by pattern recognition is proposed. The method starts with background removal and object segmentation by thresholding. Statistical, textural and shape features are extracted from each segmented object and these features are introduced to several supervised ...
D. Unay, B. Gosselin
exaly   +2 more sources

Search for a dwarfing rootstock for ‘Jonagold’

Acta Horticulturae, 2022
J. Vercammen, A. Gomand, D. Bylemans
openaire   +2 more sources

Automatic defect identification and grading system for ‘Jonagold’ apples

2016 Second International Conference on Cognitive Computing and Information Processing (CCIP), 2016
A method to grade ‘Jonagold’ apples based on features extracted from defects is described. Database consisting of multi-spectral images of Jonagold apples is used for the work. Fuzzy C-Means (FCM) clustering method is used for defect segmentation, features from defect part is extracted using Histogram of Oriented Gradients (HOG) method and Apple ...
Shyla Raj, D.S. Vinod
openaire   +2 more sources

Bruise detection on Jonagold apples by visible and near-infrared spectroscopy

Food Control, 2005
The visible and near-infrared spectra of bruised and intact spots on Jonagold apples were acquired from 400 to 1700 nm with spectrophotometers. Multiplicative scatter correction (MSC) and Norris' first derivative were applied to pre-process the spectra. Afterwards, partial least squares (PLS) analysis was performed on the processed spectral data.
Juan Xing   +3 more
exaly   +2 more sources

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