Manual of Rootstocks

Rootstock comparison table

Rootstock M40
Summary M40 is compatible with many prunes, apricots and Japanese plums. Its almond compatibility is similar to ‘Marianna 26-24’ and is incompatible with peaches, nectarines and some almond varieties.
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Using


M40
Species compatibility Japanese plum
European plum
Apricot
Vigour % of standard 85%
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Growing


M40
Rootstock size class Vigorous
Support required Free-standing
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Climate


M40
Cold-hardiness Cold-hardy
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Identification


M40
Developer University of California Davis Plant Breeding Center
Country of origin United States
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Problems


M40
Phytophthora Some resistance
Bacterial canker Some susceptibility
Root knot nematode Some resistance
Honey / Oak root fungus Some resistance
Root suckers Few
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