Rootstocks
Rootstock Details by Bacterial Canker : Resistant or tolerant
Guardian
Other Names
BY520-9
Species
Prunus persica
Origin
USDA, released in 1993
Vigor
Standard
Vigor Explanation
Waterlogging Tolerance
Fair
Waterlogging Explanation
Calcareous Soil Tolerance
Poor
Compatibility with Peach and Nectarine
Good
Compatibility with Plum
Unknown
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
Partly resistant
Nematode Explanations
Has root-knot nematode resistance, but slightly less than Nemaguard. Has greater resistance to ring nematode than Nemaguard and is thus less susceptible to bacterial canker.
Bacterial Canker
Resistant or tolerant
Phytophthora
Unknown
Armillaria
Susceptible
Crown Gall
Unknown
Disease Explanations
Other Diseases
Availability from Nurseries
Propagation Methods
Seed propagated
Summary Comments
Similar to Nemaguard in many ways but is substantially less susceptible to bacterial canker and Peach Tree Short Life, and is thus widely planted in southeastern USA.
References
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Krymsk 2
Other Names
VSV 1
Species
Prunus incana x Prunus tomentosa
Origin
Russia
Vigor
Dwarfing
Vigor Explanation
Waterlogging Tolerance
Fair
Waterlogging Explanation
Calcareous Soil Tolerance
Poor
Compatibility with Peach and Nectarine
Poor
Compatibility with Plum
Good
Suckering
Lots
Explanations for calcareous soil tolerance - compatiblities - suckering
Reported to be compatible with plum. In 2002 NC140 trial was not very compatible with Redhaven peach. Had 60 root suckers per tree in this trial.
Drought Tolerance
Unknown
Anchorage
Unknown
Precocity
Precocious
Fruit Ripening
Unknown
Flower Timing
Unknown
Flower Density
Unknown
Cold Hardiness
Yes
Rootknot Nematode
Susceptible
Lesion Nematode
Resistant or tolerant
Ring Nematode
Unknown
Nematode Explanations
Showed susceptibility to root-knot, but resistance to lesion nematode in California tests. (Nematode Table)
Bacterial Canker
Resistant or tolerant
Phytophthora
Unknown
Armillaria
Unknown
Crown Gall
Unknown
Disease Explanations
Survived well at a severe bacterial canker site in South Carolina
Other Diseases
Availability from Nurseries
Propagation Methods
Summary Comments
Performed poorly in the 2002 NC-140 trial due to excessive suckering, poor fruit size and signs of incompatibility.
References
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Lovell
Other Names
Species
Prunus persica
Origin
California, selected about 1882
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
Susceptible
Lesion Nematode
Partly resistant
Ring Nematode
Partly resistant
Nematode Explanations
Bacterial Canker
Resistant or tolerant
Phytophthora
Susceptible
Armillaria
Susceptible
Crown Gall
Susceptible
Disease Explanations
One of the better rootstocks in terms of resistance to bacterial canker.
Other Diseases
Availability from Nurseries
Propagation Methods
Seed propagated
Summary Comments
Has been a standard peach rootstock for many years, but now is not widely used in California because of root-knot nematode susceptibility.
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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Pumiselect
Other Names
Rhenus 2
Species
Prunus pumila
Origin
Germany
Vigor
Semidwarf
Vigor Explanation
Waterlogging Tolerance
Poor
Waterlogging Explanation
Calcareous Soil Tolerance
Poor
Compatibility with Peach and Nectarine
Good
Compatibility with Plum
Unknown
Suckering
Little or none
Explanations for calcareous soil tolerance - compatiblities - suckering
Drought Tolerance
Good
Anchorage
Poor
Precocity
Unknown
Fruit Ripening
Unknown
Flower Timing
Unknown
Flower Density
Unknown
Cold Hardiness
Yes
Rootknot Nematode
Resistant or tolerant
Lesion Nematode
Partly resistant
Ring Nematode
Partly resistant
Nematode Explanations
In California trials (Nematode Table), this rootstock was resistant to root-knot nematodes, similar to Nemaguard in lesion susceptibility and between Nemaguard and Lovell in ring nematode susceptibility.
Bacterial Canker
Resistant or tolerant
Phytophthora
Unknown
Armillaria
Unknown
Crown Gall
Unknown
Disease Explanations
Survived well in a severe bacterial canker site in South Carolina
Other Diseases
Availability from Nurseries
Propagation Methods
Summary Comments
This rootstock did not perform well in the 2001 NC-140 trial. It had small fruit size every year and a couple of trees died from unknown causes.
References
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Viking
Other Names
Species
Complex Prunus hybrid that is reported to be 1/2 peach, 1/4 almond, 1/8 plum and 1/8 apricot
Origin
USA from Zaiger Genetics
Vigor
Standard
Vigor Explanation
Reported to be very vigorous, but California studies have shown it to be equal to Nemaguard.
Waterlogging Tolerance
Unknown
Waterlogging Explanation
Calcareous Soil Tolerance
Good
Compatibility with Peach and Nectarine
Good
Compatibility with Plum
Unknown
Suckering
Little or none
Explanations for calcareous soil tolerance - compatiblities - suckering
Drought Tolerance
Unknown
Anchorage
Good
Precocity
Precocious
Fruit Ripening
Unknown
Flower Timing
Unknown
Flower Density
Unknown
Cold Hardiness
No
Rootknot Nematode
Resistant or tolerant
Lesion Nematode
Partly resistant
Ring Nematode
Partly resistant
Nematode Explanations
Bacterial Canker
Resistant or tolerant
Phytophthora
Unknown
Armillaria
Unknown
Crown Gall
Unknown
Disease Explanations
Other Diseases
Availability from Nurseries
Propagation Methods
Hardwood cuttings
Summary Comments
A vigorous rootstock compatible with peach and nectarine that is one of the most resistant rootstocks to bacterial canker (Bacterial Canker Report 2006), even though it is not completely resistant to ring nematode. It is resistant to root-knot and partially resistant to lesion nematode (Nematode Table), similar to Nemaguard.
References
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