Ringstad
The record of the National Fruit Collection, at Brogdale in Kent, describes it1:
Raised in about 1818 by Notary Frans Rundberg at Ringstad near Norrkoping, Sweden. Fruits have fine, loose textured, crisp, white flesh with a sweet, slightly acid and aromatic flavour.
Sources
- Ringstad (accession 1927 - 012), National Fruit Collection, Brogdale, Kent (Defra). Supports: the description quoted; the use; the fruit's size, shape and colours and the flesh, from the collection's characterisation; the picking time at Brogdale (early september); the other names.
- Using whole-genome SNP data to reconstruct a large multi-generation pedigree in apple germplasm, Hélène Muranty and others, BMC Plant Biology 20:2, 2020. Supports: its ploidy, diploid (supplementary table S1).