Cultivar Name: |
Colt
|
Type |
Cherry Rootstock |
Synonyms |
EMLA Colt
|
Patent |
National Seed Development Organisation Limited (Newton, EN) 1977 PP04059
|
Parentage |
Prunus avium F 299/2 x Prunus pseudocerasus Lind
|
Usage |
Rootstock
|
Scion Vigor Influence |
Semi-vigorous
|
Soil Adaptation |
tolerates wet heavy soils better than Mahaleb and Gisela 5, drought sensitive, slight to not dwarfing under California irrigated conditions,
|
Climatic Adaptation |
not cold hardy (not a problem in California climate)
|
Resistance Traits |
Has shown resistance to Phytophthora root rot and gopher damage, but is susceptible to crown gall caused by Agrobacterium tumefaciens; resists bacterial canker; cherries on Colt are field resistant to cherry stem pitting.
|
Graft Compatibility |
Colt has good compatibility with nearly all cherry varieties, possibly excluding Van.
|
Propagation Notes |
Preformed root initial make propagations by hardwood and softwood cuttings very effective.
|
Propagation Method |
Vegetative
|
Suckering |
Low
|
Description |
Originated in Kent, England, by H.M. Tyderman, deceased, late of East Malling, England.
Pollination, evaluation, and testing was carried out at the East Malling Research Station, Maidstone, Kent, England. Patent date June 14, 1977.
The original plant was a member of a family of seedlings, Fb 2/58, cross produced by pollinating flowers of Prunus avium L. F 299/2 with pollen from Prunus pseudocerasus Lind. in 1958. Selection was made in 1966/1967. Vigorous, sturdy, erect shoots with large, bright-green leaves; stems greenish. When used as understock, induces some dwarfing and higher fruit bud production
However, in the Northwest irrigated orchards it produces a vigorous tree that is similar in size ot Mazzard with similar low precocity.
Also in the Northwest, Colt
performs well in replant situations where cherries follow cherries on nonfumigated
sites.
Yield potential: The Colt cultivar has been found to induce higher fruit bud production on the scion in the early life of the cherry tree than F 12/1, thus in favorable years giving heavier crops earlier in the tree's life. Fruit quality is equal to, or better than, that produced on F 12/1 rootstock.
A good rootstock for growing cherry trees in large gardens and community orchards. It produces a tree with a height of 12ft-14ft in European conditions and somewhat larger in North American conditions. It is useful for large cherry fans. Colt is roughly comparable to the apple MM111 rootstock. |
References |
- The Brooks and Olmo Register of Fruit & Nut Varieties. Third Edition. 1997. ASHS Press, Alexandria, Virginia.
- Burchell Nursery Fruit and Nut Tree Varieties. Link
- Dave Wilson Nursery. Link
- United States Patent and Trademark Office
- Cherry Cultivars - Sweet and Tart FACTSHEET, Ontario, Ministry of Ag, Food, and Rural Affairs;
Link
- Orange Pippin; Link
- Cherry Rootstocks for Sacramento County, by Chuck Ingels and Robert Arceo; Link
- Rootstocks, WSU Tree Fruit; Link
- Sweet Cherry Rootstock Traits, by Lynn E. Long, OSU, 2009; Link
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No photos for this cultivar.
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