curation of the uk apple collection emma-jane lamont imperial college
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Curation of the UK Apple Collection
Emma-Jane Lamont
Imperial College
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• Germplasm conserved in a field genebank
• Two trees per variety
• Grafted onto dwarfing M9 rootstock
• Repropagated every 25-30 years approx
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Early History
• First aim: standardisation of nomenclature
• Catalogue published 1826
• Contained 1201 apple scions and 4 rootstocks
• Located at the Horticultural Society Gardens, London
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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
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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
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Data Management• Aim to verify 95% of
collection
• Link accessions to available data– publications– archives– grey literature
• Collate information in database
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Database Structure
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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%
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pre 17th century
17th century
18th century
19th century
20th century
Age of varieties in the collection
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Origin of varieties in the collection
UKFrance
USA
Germany
Netherlands
Canada
Other
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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
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Serbian apples in the Collection
• Budimka
• Cacanska Posna
• Grvena Lepogvetka
• Kolacara
• Pohorka
Pohorka
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Other accessions received
• Alexis
• Bedford Red
• Diana
• Dr Ramburg
• Fairy
Diana
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www.nfc-unet.com