Parentage:
Steuben x Norwis
Breeder:
Cornell University Potato Breeding Program;
Ithaca, NY
Release Date:
Released to New York seed potato growers in 1999
Description:
Medium to medium-late maturing, scab-resistant tablestock line with pale yellow flesh
Plant Characteristics:
Type
medium to large-sized tops, upright
Maturity medium to medium-late (slightly
earlier than Katahdin, similar or slightly later than Atlantic)
Flowers white
Tuber Characteristics:
Shape mostly round to slightly oval, uniform and
attractive shape
Eyes shallow
Skin slightly netted to flaky skin with prominent
lenticels (degree of netting is similar to Superior and
typically less than Atlantic)
Flesh pale yellow
Resistances/Susceptibilities:
Golden nematode race Ro1 resistant
Common scab
resistant
Internal defects
susceptible to internal heat necrosis in the Southeastern coastal areas of the
Eastern U.S.
relatively low incidence of hollow heart
Keuka Gold is not known to have
resistance to other diseases; however, no major problems have been
noted to date.
Small-plot Research Results in
Maine (NE1014 Regional Project):
Total Yields
396 cwt/A in nine Maine trials (Presque Isle, Exeter, and St. Agatha)
113% of Katahdin and 105% of Atlantic
U.S.#1 Yields 355 cwt/A in nine Maine trials (Presque Isle,
Exeter, and St. Agatha)
141% of Katahdin and 119% of Atlantic
Specific gravity medium, Keuka Gold averaged 1.077 in nine
trials (0.001 less than Katahdin and 0.016 less than
Atlantic)
Tuber size moderate-sized tubers with 42% in the 2-1/2 to 4 inch
range (compared to 55% for Katahdin)
External defects usually low incidence (6% for Keuka Gold compared to 19% for
Katahdin)
Hollow heart relatively low (1.9% versus 1.4% for Katahdin and 5.7% for
Atlantic
Chip color not usually acceptable for chipping
Cooking tests excellent cooking quality
Dormancy and Small-scale storage tests3:
 New
York: Medium dormancy, typically 1to 2 weeks longer than Atlantic and similar
to Katahdin
Maine: Moderate dormancy, similar to Atlantic and Katahdin
Weight loss 5-mo. @38F: 4.8% (similar to Atlantic and Katahdin)
Weight loss 5-mo. @50F: 11.5% (less than Atlantic and Katahdin)
Maine Challenge Grant Results:
This line has been grown commercially in Maine, but has not been part of the New
Potato Variety Challenge Grant Program
Management Suggestions:
Fertilizer: Suggest moderate nitrogen rates, approximately
150 lbs/A under typical conditions, but may adjust depending on soil conditions and crop rotation.
Spacing: 7-8" seed; 8 to 9" table
Other: Avoid wide seedpiece spacings which could lead to oversize and
greater hollow heart incidence. Not suited for production in warmer production areas of the Southeastern U.S. due to susceptibility to
internal heat necrosis.
1Results presented reflect current
information available at the time of printing and is based on both research
results and commercial trials. The information will need to be updated as more
trials are conducted. For more information see the release publication (if
noted above), contact the originating breeding program, or contact Greg Porter,
5722 Deering Hall, Room #114, University of Maine, Orono, ME 04469
(207-581-2943).
2Growing
conditions vary widely around the eastern region and performance in a particular
area may be different from the average results. See the annual trial reports or
contact Greg Porter, 5722 Deering Hall, Room #114, University of Maine, Orono,
ME 04469 (207-581-2943) for more information about performance at a specific
location.
3Storage screenings indicate
relative differences among varieties and do not guarantee “storage capability”
under commercial conditions. Commercial “storage capability” will depend on
growing conditions, harvesting and handling practices, pest management, storage
size and management, etc. The reported weight-loss values were generated from
tubers that did not receive any sprout inhibitors.
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