Manual of Rootstocks

Rootstock comparison table

Rootstock M793
Summary M.793 is a hybrid with 'Northern Spy' as one parent. It outperforms 'Northern Spy' rootstock in many categories. It is virus free.
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Using


M793
Species compatibility Apple
Vigour % of standard 80% - 90%
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Growing


M793
Rootstock size class Vigorous
Support required Temporary support
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Climate


M793
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Identification


M793
Developer John Innes Horticultural Institute
Country of origin United Kingdom
Period of origin 1950 - 1999
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Problems


M793
Woolly aphid Some resistance
Fire blight Some resistance
Some susceptibility
Burr knots Few
Collar rot Some resistance
Some susceptibility
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