Russeting
Russetting is a collective term for corked cells on the surface of the fruit of pome fruit .
Russeting results from injuries to the fruit skin. Depending on the type and time of the injury during fruit growth, different forms of russeting can arise. Possible causes are climatic conditions such as precipitation or frost. Gall and rust mites such as apple rust mites , yeasts and apple powdery mildew can also cause russeting. Rust fungi, on the other hand, do not trigger the russeting because they do not affect the fruit, but other parts of the plant. There are different types of apples for which russeting is typical, such as the Osnabrück Renette or the Gray Autumn Strenette . With such varieties, a certain amount of russeting is not a quality defect .
literature
- Linskens, Gelissen: The nature of the smoky peel in fruits of the apple variety Golden Delicious , Phytopathologische Zeitschrift, 1966
- Academy of Agricultural Sciences of the GDR: News sheet for plant protection in the GDR , 1978, pages 169 to 172
Individual evidence
- ↑ a b Thomas Rühmer Far too much rusted apples , published in Haidegger Perspektiven, April 2009 edition (accessed April 14, 2011)
- ↑ Swiss Confederation, Department of Economic Affairs EVD, gall and rust mites on pome fruit (PDF file 182 kB) ( page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice. (accessed April 14, 2011)
- ↑ EC marketing standards: Criteria about russeting in apples ( Memento of the original from July 5, 2007 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. (accessed April 14, 2011)
- ↑ Regulation (EC) No. 85/2004 - Appendix 4 List of apple varieties for which russeting is typical ( Memento of the original from July 5, 2007 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. (accessed April 14, 2011)
Web links
- Fruit growing side Mainfranken, russeting on plums www.obstbauseite.de
- Foundation Competence Center for Fruit Growing on Lake Constance, reticulated russeting from apple powdery mildew