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 trees. 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 in

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

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'' ar ...

'', 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