Effect of spring frost damage on apple fruit (Malus domestica Borkh.) inner quality at harvest

Čebulj, Anka (author), Mikulič Petkovšek, Maja (author), Veberič, Robert (author), Jakopič, Jerneja (author)

In the last few years, spring frosts have become more of a rule than an exception. There are several prevention measures available for growers and numerous are being tested; however, fruitlets are often affected to some extent. One of the more common phenomena is the development of frost rings. The aim of our study was to evaluate how the occurrence of frost rings affects sugar, organic acid, and phenol content in the flesh and phenol content in the peel of cv. ‘Gala’ apples. The results show that the frost damage from spring frost affects compounds in the peel, as well as in the flesh of ripe apples. The flesh of fruits with frost rings contained higher content of fructose and in the flesh directly under the rings there was higher sorbitol and malic acid content. Additionally, the hydroxycinnamic acid and dihydrochalcone content in apple flesh was also altered by frost. The frost-affected peel had a completely different ratio of phenolic compounds content in comparison to healthy apples. While there was a significantly higher content of hydroxycinnamic acids and dihydrochalcones in the corky peel in comparison to the unaffected peel, the flavonol and anthocyanin content was considerably lower.

• Language: English
• Keywords: frost rings, sugar, sorbitol, phenolic content
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: BF - Biotechnical Faculty
• Publication status: Published
• Publication version: Version of Record
• Year: 2022
• Number of pages: 10 str.
• Numbering: Vol. 12, iss. 1, art. 14
• PID: 20.500.12556/RUL-136892
• UDC: 634.11/.12
• ISSN on article: 2077-0472
• DOI: 10.3390/agriculture12010014
• COBISS.SI-ID: 90849283
• Publication date in RUL: 24.05.2022

Record is a part of a journal

• Title: Agriculture
• Shortened title: Agriculture
• Publisher: MDPI
• ISSN: 2077-0472
• COBISS.SI-ID: 523634201

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
• Licensing start date: 01.01.2022

Secondary language

• Language: Slovenian
• Keywords: kmetijstvo, sadjarstvo, jabolka, pozeba, kakovost plodov

Projects

• Funder: ARRS - Slovenian Research Agency
• Project number: P4-0013
• Name: Hortikultura

• Funder: ARRS - Slovenian Research Agency
• Project number: P4-0133
• Name: Trajnostno kmetijstvo