Fluorescence imaging as a non-destructive method for pre-harvest detection of bitter pit in apple fruit (Malus domestica Borkh.)

2006 ◽  
Vol 40 (3) ◽  
pp. 287-294 ◽  
Author(s):  
Elmi Lötze ◽  
Christy Huybrechts ◽  
Annalene Sadie ◽  
Karen I. Theron ◽  
Roland M. Valcke
Keyword(s):  
Fluorescence Imaging ◽  
Malus Domestica ◽  
Apple Fruit ◽  
Malus Domestica Borkh ◽  
Bitter Pit ◽  
Non Destructive

scholarly journals Ultrastructure of Cells and Microanalysis in Malus domestica Borkh. ‘Szampion’ Fruit in Relation to Varied Calcium Foliar Feeding

Molecules ◽  
2020 ◽  
Vol 25 (20) ◽  
pp. 4622
Author(s):  
Piotr Kowalik ◽  
Tomasz Lipa ◽  
Zenia Michałojć ◽  
Mirosława Chwil
Keyword(s):  
Cell Wall ◽  
Malus Domestica ◽  
Cell Structure ◽  
Middle Lamella ◽  
Apple Fruit ◽  
Malus Domestica Borkh ◽  
X Ray ◽  
Transmission Electron ◽  
Cytoplasmic Membranes

Calcium is one of the most poorly reutilized nutrients. Its deficiencies cause various physiological disturbances and, consequently, reduce the quantity and quality of yields. Reduced content of Ca2+ ions in cells leads to development of, e.g., bitter pit in apples. Efficient and instantaneous mitigation of Ca2+ deficiencies is provided by foliar feeding. There are no detailed data on the effect of foliar feeding with various calcium forms on the cell structure or on the microanalysis and mapping of this element in apple fruit cells. Therefore, we carried out comparative studies of the ultrastructure of epidermis and hypodermis cells, to assess the content and distribution of calcium in the cell wall, cytoplasmic membrane, cytoplasm, and precipitates of Malus domestica Borkh. ‘Szampion’ fruit exposed to four Ca treatments, including the control with no additional Ca supplementation (I) and foliar applications of Ca(NO3)2 (II), CaCl2 (III), and Ca chelated with EDTA (IV). Light and transmission electron microscopy and an X-ray microanalyzer were used and showed a beneficial effect of calcium preparations on the ultrastructure of fruit epidermis and hypodermis cells, manifested in the presence of a normally developed cell wall with a regular middle lamella, preserved continuity of cytoplasmic membranes, and stabilized cell structure. In the selected elements of apical epidermis cells, the highest level of Ca2+ ions was detected in the middle lamella, cell wall, plasmalemma, and cytoplasm. The highest increase in the Ca2+ content in these cell constituents was recorded in treatment IV, whereas the lowest value of the parameters was noted in variant III.

Non-destructive measurement of bitter pit in apple fruit using NIR hyperspectral imaging

2006 ◽  
Vol 40 (1) ◽  
pp. 1-6 ◽  
Author(s):  
Bart M. Nicolaï ◽  
Elmi Lötze ◽  
Ann Peirs ◽  
Nico Scheerlinck ◽  
Karen I. Theron
Keyword(s):  
Hyperspectral Imaging ◽  
Apple Fruit ◽  
Bitter Pit ◽  
Destructive Measurement ◽  
Non Destructive

Pre-harvest hexanal spray reduces bitter pit and enhances post-harvest quality in ‘Honeycrisp’ apples (Malus domestica Borkh.)

2020 ◽  
Vol 273 ◽  
pp. 109610
Author(s):  
Erika J. DeBrouwer ◽  
Karthika Sriskantharajah ◽  
Walid El Kayal ◽  
J. Alan Sullivan ◽  
Gopinadhan Paliyath ◽  
...  
Keyword(s):  
Malus Domestica ◽  
Malus Domestica Borkh ◽  
Post Harvest ◽  
Bitter Pit ◽  
Honeycrisp Apples

Preferences of Canadian consumers for apple fruit size

2002 ◽  
Vol 82 (1) ◽  
pp. 165-167 ◽  
Author(s):  
C. R. Hampson ◽  
K. Sanford ◽  
J. Cline
Keyword(s):  
Malus Domestica ◽  
Consumer Preferences ◽  
Fruit Size ◽  
Age Groups ◽  
Consumer Preference ◽  
Apple Fruit ◽  
Malus Domestica Borkh ◽  
Size Preference ◽  
Fruit Diameter ◽  
Just Right

Apple fruit size preferences are known to vary among consumer populations. Characteristic commercial fruit size varies among apple-growing regions within Canada for a given cultivar. Canadian consumer preferences for apple size are not well documented, nor is it known whether preferences vary among regions. In this study, 586 consumers from British Columbia, Ontario and Nova Scotia were asked to rate a series of apple sizes using the affective “Just Right” scale. Ideal fruit size was similar regardless of province or consumer gender. Age groups differed slightly in fruit size preference. The Just Right score was a linear function of fruit diameter for all groups. The fruit diameter considered ideal for dessert use ranged from 7.4 to 7.6 cm among the age groups. Key words: Malus × domestica Borkh., sensory evaluation, consumer preference

Phenolic contents and other health and sensory related properties of apple fruit (Malus domestica Borkh., cv. Aroma): Effect of postharvest UV-B irradiation

2007 ◽  
Vol 45 (1) ◽  
pp. 1-10 ◽  
Author(s):  
Sidsel Fiskaa Hagen ◽  
Grethe Iren A. Borge ◽  
Gunnar B. Bengtsson ◽  
Wolfgang Bilger ◽  
Arvid Berge ◽  
...  
Keyword(s):  
Malus Domestica ◽  
Apple Fruit ◽  
Malus Domestica Borkh ◽  
Phenolic Contents
Sign in / Sign up

Export Citation Format

Share Document