The Malling series is a group of

rootstock A rootstock is part of a plant, often an underground part, from which new above-ground growth can be produced. It could also be described as a stem with a well developed root system, to which a bud from another plant is grafted. It can refer to a ...

s for grafting

apple tree An apple is an edible fruit produced by an apple tree (''Malus domestica''). Apple trees are cultivated worldwide and are the most widely grown species in the genus ''Malus''. The tree originated in Central Asia, where its wild ancestor, ' ...

s. It was developed at the

East Malling Research Station NIAB EMR is a horticultural and agricultural research institute at East Malling, Kent in England, with a specialism in fruit and clonally propagated crop production. In 2016, the institute became part of the NIAB Group. History A research ...

of the South-Eastern Agricultural College at

Wye Wye may refer to: Place names *Wye, Kent, a village in Kent, England ** Wye College, agricultural college, part of University of London before closure in 2009 **Wye School, serving the above village ** Wye railway station, serving the above villa ...

Kent Kent is a county in South East England and one of the home counties. It borders Greater London to the north-west, Surrey to the west and East Sussex to the south-west, and Essex to the north across the estuary of the River Thames; it faces ...

, England. From about 1912, Ronald Hatton and his colleagues rationalised, standardised and catalogued the various rootstocks in use in Europe at the time under names such as ''Doucin'' and ''Paradise''. Their first list had nine rootstock varieties, assigned the "type" numbers I–IX. The list later grew to twenty-four, and the Roman numerals gave way to

Arabic numerals Arabic numerals are the ten numerical digits: , , , , , , , , and . They are the most commonly used symbols to write decimal numbers. They are also used for writing numbers in other systems such as octal, and for writing identifiers such as ...

with the prefix "Malling" or "M.". From about 1917, collaboration between East Malling and the

John Innes Institute The John Innes Centre (JIC), located in Norwich, Norfolk, England, is an independent centre for research and training in plant and microbial science founded in 1910. It is a registered charity (No 223852) grant-aided by the Biotechnology and B ...

, in

Merton Park Merton Park is a suburb in the London Borough of Merton. It is situated between Colliers Wood, Morden, South Wimbledon and Raynes Park. It is 11 miles (11.7 km) southwest of Charing Cross. The area is part of the historic parish of Merto ...

in Surrey, gave rise to the Malling-Merton series, which were resistant to ''

Eriosoma lanigerum ''Eriosoma lanigerum'', the woolly apple aphid, woolly aphid or American blight, is an aphid in the superfamily Aphidoidea in the order Hemiptera. It is a true bug and sucks sap from plants. Description The adults of ''Eriosoma lanigerum'' a ...

'', the woolly apple aphid.

References

External links

Rootstocks

Apple rootstock identification — NSW Department of Primary Industries — Series: Agfact H4.1.10 – Edition: Second edition – Last updated: 12 Jun 2001

{{DEFAULTSORT:Malling Series Apple cultivars Science and technology in Kent Tonbridge and Malling