| Cultivar Name: |
Controller 8
|
| Type |
Peach Rootstock |
| Synonyms |
`HBOK 10`, `P248-139`, '94-94-10', 'DeJong 24-20)
|
| Patent |
The Regents of the University of California (Oakland, CA) The United States of America as represented by the Secretary of Agriculture (Washington, DC) N/A (N/A) 2012 PP22505
|
| Parentage |
`OP-F2` plant from an F1 plant of Prunus persica cv.‘Harrow Blood’ (HB) × cv. ‘Okinawa’ (OK)
|
| Species |
Prunus persica L. Batsch new clonal peach rootstock
|
| Usage |
Rootstock
|
| Scion Vigor Influence |
semi-dwarf
|
| Soil Adaptation |
Poor tolerance to Calcareous Soil
|
| Resistance Traits |
Root-knot nematode Meloidogyne incognita (race 1) isolate `Beltran`. Shows resistance to root-knot nematode similar to that of Nemaguard. It may have resistance or tolerance to other types of nematodes, but that remains to be studied in more detail. Reactions to other diseases and pests appear to be similar to other rootstocks used in California.
|
| Graft Compatibility |
HBOK 10 appears to be well adapted to California and can be used as a rootstock for dessert peach, canning peach, nectarine and possibly almond and apricot.
|
| Propagation Notes |
leafy cuttings, hardwood cuttings, tissue culture
|
| Propagation Method |
Vegetative
|
| Anchorage |
Good
|
| Suckering |
Low
|
| Description |
Inventors: Bliss; Fredrick A. (Davis, CA), Almehdi; Ali A. (Davis, CA), Dejong; Theodore M. (Davis, CA), Gillen; Anne (Leland, MS), Ledbetter; Craig A. (Clovis, CA); UC Rootstock Breeding Program
Genetic Origin: The cultivar HBOK 10 originated from an intra-specific cross of two peach [Prunus persica (L.) Batsch] cultivars, ‘Harrow Blood’ (HB) x ‘Okinawa’ (OK).
Ownership: The University of California, Davis. This is a joint release by the University of California, Davis (UC Davis) and the United States Department of Agriculture – Agricultural Research Service (USDA-ARS).
Pedigree Details: (Harrow Blood x Okinawa) F1 ?(O.P.)?(OP-F2 Population)?Single plant (94-94-10). Peach is predominantly self pollinated so 94-94-10 is presumed to have been the result of a self pollinated flower of the single F1 plant. Phenotypic characteristics support that presumption.
In NC-140 Trials: 2009. It has performed well in the first three years of the 2009 NC-140 peach rootstock trial.
Field Performance: When used as clonally-produced rootstocks with fresh market peach (O’Henry and Springcrest) and nectarine (Mayfire and Summer Fire) scions, HBOK 10 showed size reduction of compound trees and no evidence of graft incompatibility or other abnormalities. Compound trees with HBOK 10 were smaller by ~8-12 % (based on reduced tree height and smaller trunk cross-sectional area (TCA), showed generally showed greater cropping efficiency, fruit on compound trees either similar in size or smaller than Nemaguard, less wood from summer and winter pruning, and fewer root suckers than Nemaguard. |
| References |
- United States Patent and Trademark Office
- Google Patents.
- California Tree Fruit Agreement (CTFA2010_152.pdf-92539.pdf); Link
- University of California Fruit Report, Rootstocks; Link
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