Rootstocks
Rootstock Details by Phytophthora : Partly resistant
Citation
Other Names
4-G-816
Species
Prunus salicina x Prunus persica
Origin
USA, Zaiger Genetics, patented in 1983
Vigor
Dwarfing
Vigor Explanation
Waterlogging Tolerance
Good
Waterlogging Explanation
Calcareous Soil Tolerance
Unknown
Compatibility with Peach and Nectarine
Poor
Compatibility with Plum
Good
Suckering
Little or none
Explanations for calcareous soil tolerance - compatiblities - suckering
Drought Tolerance
Unknown
Anchorage
Good
Precocity
Precocious
Fruit Ripening
Advanced
Flower Timing
Advanced
Flower Density
Heavy
Cold Hardiness
Unknown
Rootknot Nematode
Resistant or tolerant
Lesion Nematode
Partly resistant
Ring Nematode
Unknown
Nematode Explanations
Bacterial Canker
Susceptible
Phytophthora
Partly resistant
Armillaria
Susceptible
Crown Gall
Susceptible
Disease Explanations
Very susceptible to Crown Gall
Other Diseases
Availability from Nurseries
Propagation Methods
Hardwood cuttings
Summary Comments
This rootstock has performed very well with plums and apricots. With peaches, its performance has been variable. Many trees look great, but others have died or shown other signs of incompatability. About half the trees died in the 1984 NC-140 trial.
References
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GF 655/2
Other Names
St. Julien 655/2
Species
Prunus insititia
Origin
Vigor
Dwarfing
Vigor Explanation
Waterlogging Tolerance
Good
Waterlogging Explanation
Calcareous Soil Tolerance
Good
Compatibility with Peach and Nectarine
Good
Compatibility with Plum
Unknown
Suckering
Lots
Explanations for calcareous soil tolerance - compatiblities - suckering
Drought Tolerance
Poor
Anchorage
Good
Precocity
Unknown
Fruit Ripening
Unknown
Flower Timing
Unknown
Flower Density
Unknown
Cold Hardiness
Unknown
Rootknot Nematode
Unknown
Lesion Nematode
Unknown
Ring Nematode
Unknown
Nematode Explanations
Bacterial Canker
Unknown
Phytophthora
Partly resistant
Armillaria
Unknown
Crown Gall
Resistant or tolerant
Disease Explanations
Other Diseases
Availability from Nurseries
Propagation Methods
Propagated by layering, hardwood cuttings and micropropagation
Summary Comments
Performed OK in the 1984 NC-140 trial but fruit size was always small and there was lots of suckering (but not nearly as much as Damas 1869).
References
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Marianna 26-24
Other Names
Species
Prunus cerasifera x Prunus munsoniana
Origin
Vigor
Standard
Vigor Explanation
Slightly less vigorous than Myrobalan 29C
Waterlogging Tolerance
Good
Waterlogging Explanation
Calcareous Soil Tolerance
Compatibility with Peach and Nectarine
Poor
Compatibility with Plum
Good
Suckering
Lots
Explanations for calcareous soil tolerance - compatiblities - suckering
Suckers profusely
Drought Tolerance
Anchorage
Precocity
Fruit Ripening
Flower Timing
Flower Density
Cold Hardiness
Rootknot Nematode
Resistant or tolerant
Lesion Nematode
Susceptible
Ring Nematode
Susceptible
Nematode Explanations
Bacterial Canker
Susceptible
Phytophthora
Partly resistant
Armillaria
Resistant or tolerant
Crown Gall
Partly resistant
Disease Explanations
Best rootstock to use if Armillaria (Oak Root Fungus) is a problem
Other Diseases
Availability from Nurseries
Propagation Methods
Summary Comments
Standard rootstock for plums in California, especially in heavy soils where Nemaguard does not do well, or where Armillaria is a problem. However, it tends to have many root suckers.
References
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Mr.S. 2/5
Other Names
Species
Not certain - could be Prunus cerasifera x Prunus spinosa or Prunus domestica x Prunus spinosa
Origin
Pisa, Italy
Vigor
Semidwarf
Vigor Explanation
Waterlogging Tolerance
Good
Waterlogging Explanation
Calcareous Soil Tolerance
Good
Compatibility with Peach and Nectarine
Good
Compatibility with Plum
Unknown
Suckering
Some
Explanations for calcareous soil tolerance - compatiblities - suckering
Drought Tolerance
Unknown
Anchorage
Good
Precocity
Precocious
Fruit Ripening
Advanced
Flower Timing
Unknown
Flower Density
Unknown
Cold Hardiness
No
Rootknot Nematode
Resistant or tolerant
Lesion Nematode
Susceptible
Ring Nematode
Susceptible
Nematode Explanations
Bacterial Canker
Resistant or tolerant
Phytophthora
Partly resistant
Armillaria
Partly resistant
Crown Gall
Resistant or tolerant
Disease Explanations
Several scientific studies show this rootstock to be resistant to some diseases such as bacterial canker and crown gall. However, in the California 2002 NC-140 trial, several trees died suddenly in the middle of the season, probably from a disease.
Other Diseases
Availability from Nurseries
Propagation Methods
Easy to propagate by layering, hardwood cuttings and micropropagation
Summary Comments
In Europe, it is reported to tolerate calcareous soils, waterlogging and several soil pests and diseases. However, it was not very impressive in the 2002 NC-140 trial - 3 of the 8 trees died suddenly in one year and suckering was a little excessive.
References
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Myrobalan 29C
Other Names
Species
Prunus cerasifera
Origin
Vigor
Standard
Vigor Explanation
Waterlogging Tolerance
Good
Waterlogging Explanation
Calcareous Soil Tolerance
Compatibility with Peach and Nectarine
Poor
Compatibility with Plum
Good
Suckering
Some
Explanations for calcareous soil tolerance - compatiblities - suckering
Drought Tolerance
Anchorage
Precocity
Fruit Ripening
Flower Timing
Flower Density
Cold Hardiness
Rootknot Nematode
Resistant or tolerant
Lesion Nematode
Susceptible
Ring Nematode
Susceptible
Nematode Explanations
Bacterial Canker
Susceptible
Phytophthora
Partly resistant
Armillaria
Partly resistant
Crown Gall
Partly resistant
Disease Explanations
Other Diseases
Availability from Nurseries
Propagation Methods
Summary Comments
A standard rootstock for plum in California, especially in heavier soils where Nemaguard does not do well.
References
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Nemaguard
Other Names
FV 234-1
Species
Prunus persica (originally thought to also have Prunus davidiana, but molecular studies indicate it is primarily P. persica)
Origin
USDA in 1959
Vigor
Standard
Vigor Explanation
Waterlogging Tolerance
Fair
Waterlogging Explanation
Calcareous Soil Tolerance
Poor
Compatibility with Peach and Nectarine
Good
Compatibility with Plum
Good
Suckering
Little or none
Explanations for calcareous soil tolerance - compatiblities - suckering
Drought Tolerance
Unknown
Anchorage
Good
Precocity
Precocious
Fruit Ripening
Normal
Flower Timing
Normal
Flower Density
Normal
Cold Hardiness
No
Rootknot Nematode
Resistant or tolerant
Lesion Nematode
Partly resistant
Ring Nematode
Susceptible
Nematode Explanations
Bacterial Canker
Susceptible
Phytophthora
Partly resistant
Armillaria
Susceptible
Crown Gall
Partly resistant
Disease Explanations
Other Diseases
Availability from Nurseries
Propagation Methods
Seed propagated
Summary Comments
Main rootstock used in California because it is resistant to root-knot nematode and is compatible with peach, nectarine and plum. It makes a vigorous, productive tree with good fruit size. However, it does not tolerate waterlogged or calcareous soils and is susceptible to many soil pests including ring nematode, bacterial canker and armillaria.
References
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Nemared
Other Names
Species
Prunus persica
Origin
USDA, released in 1983
Vigor
Standard
Vigor Explanation
Waterlogging Tolerance
Poor
Waterlogging Explanation
Calcareous Soil Tolerance
Poor
Compatibility with Peach and Nectarine
Good
Compatibility with Plum
Good
Suckering
Little or none
Explanations for calcareous soil tolerance - compatiblities - suckering
Drought Tolerance
Unknown
Anchorage
Good
Precocity
Precocious
Fruit Ripening
Normal
Flower Timing
Normal
Flower Density
Normal
Cold Hardiness
No
Rootknot Nematode
Resistant or tolerant
Lesion Nematode
Susceptible
Ring Nematode
Susceptible
Nematode Explanations
Bacterial Canker
Susceptible
Phytophthora
Partly resistant
Armillaria
Susceptible
Crown Gall
Partly resistant
Disease Explanations
Other Diseases
Availability from Nurseries
Propagation Methods
Seed propagated
Summary Comments
Very similar to Nemaguard in most ways, except it has red leaves.
References
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