| Cultivar Name: |
Krymsk® 1
|
| Type |
Plum Rootstock |
| Synonyms |
'Krymsk® 1', 'cv.WA 1', 'VVA-1', 'VVA 1' P2G #2
|
| Patent |
Varieties International, LLC (Dundee, OR) 2005 PP15995
|
| Species |
Prunus tomentosa x Prunus cerasifera
|
| Usage |
Rootstock
|
| Scion Vigor Influence |
Dwarfing; 0 to 70% of Nemaguard or Lovell with both Plums and Apricots. About 50 to 60% of Lovell or Nemaguard with Peach.
|
| Soil Adaptation |
Waterlogging tolerance, good. Performs well in all soils and will tolerate heavy soils. Moderate tolerance to calcareous soil.
|
| Climatic Adaptation |
Hardiness: USDA Zone 4A. Cold tolerance: Excellent, Heat tolerance: Excellent
|
| Resistance Traits |
Susceptible to Root-knot nematode Ring Nematode, Crown Gall and Bacterial Canker. Good resistance or tolerance to Lesion nematodes.
|
| Graft Compatibility |
Good compatibility with plum (European and Japanese), poor compatibility with most nectarine and some peach. Apricot Cultivars tested are Apache, Robada and Orangered for 6 years. Numerous Peach and Plum cultivars tested for 3 to 6 years. Numerous Peach cultivars tested in Russia for 15 years.
|
| Propagation Notes |
Propagates well by use of hardwood and
softwood cuttings, as well as meristem cuttings in vitro.
|
| Propagation Method |
Vegetative
|
| Anchorage |
Good
|
| Suckering |
Low
|
| Description |
Bred by the inventor, Eremin; Guennadi, at the Breeding Station in Krymsk, Russia. ‘VVA-1’ is characterized by a dwarf habit, resistance to
low temperatures, the ability to serve well as rootstock that
is compatible with other crops, and the ability to propagate
well. In combination these traits set the new cultivar apart from all other existing cultivars of Prunus rootstock. Fruit has no commercial value. Level of susceptibility to crown gall is quite high, but needs more evaluation to determine the impact in orchards.
NC-14 trials: 2001, 2002, 2009; In the NC-140 trials Redhaven has been used as the scion cultivar. Compatibility has always been good in these trials. However, many other California cultivars have been grafted on Krymsk 1 and many of these show signs of poor compatibility. A report from Spain also indicated compatibility problems with some cultivars.
Cold hardy. |
| References |
- United States Patent and Trademark Office
- Progressive Genetics Group. Link
- University of California Fruit Report, Rootstocks; Link
- New Possibilities for
Rootstock Selections in the
21st Century, UCANR; Link
- California Dried Plum Board FIELD EVALUATION OF PRUNE ROOTSTOCKS 2014; Link
- Rootstocks, WSU Tree Fruit; Link
- Susceptibility of Prunus Rootstocks to Nematodes, UCANR; Link
- Field Confirmation of the Value of a New Approach to Replanting Stone Fruits, by Michael McKenry; Link
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No photos for this cultivar.
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