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Curation of the UK Apple Collection
Emma-Jane Lamont
Imperial College
• Germplasm conserved in a field genebank
• Two trees per variety
• Grafted onto dwarfing M9 rootstock
• Repropagated every 25-30 years approx
Early History
• First aim: standardisation of nomenclature
• Catalogue published 1826
• Contained 1201 apple scions and 4 rootstocks
• Located at the Horticultural Society Gardens, London
Development, 19th Century
• Synonymous varieties were discarded
• “Inferior varieties” were discarded
• Collection was replanted in 1858
• Reduced to 600 varieties at that time
Blenheim Orange
Development, 20th Century• New varieties added, particularly through
association with trials & PVR
• Current contents:– 2017 culinary/dessert– 101 cider– 78 ornamentals – 15 rootstock
Fiesta/Red Pippin
Data Management• Aim to verify 95% of
collection
• Link accessions to available data– publications– archives– grey literature
• Collate information in database
Database Structure
Summary of results
Total number of apple accessions 2143Donation date known 2108 98%Donor identity known 2014 94%Varieties with valid publications 1677 78%Variety country of origin known 1603 75%At least one parent known 821 38%
pre 17th century
17th century
18th century
19th century
20th century
Age of varieties in the collection
Origin of varieties in the collection
UKFrance
USA
Germany
Netherlands
Canada
Other
Parentage summary
• 452 varieties have both parents known– 129 have Cox’s Orange Pippin as a parent
– 70 have Golden Delicious as a parent
– 72 have Jonathan as a parent
– 54 have McIntosh as a parent
• 194 asexually derived varieties– most commonly of Cox, Golden Delicious, Jonagold
Serbian apples in the Collection
• Budimka
• Cacanska Posna
• Grvena Lepogvetka
• Kolacara
• Pohorka
Pohorka
Other accessions received
• Alexis
• Bedford Red
• Diana
• Dr Ramburg
• Fairy
Diana
www.nfc-unet.com