Cranberry Variety Trade Named

Cranberry Variety Trade Named
"Sundance," with Large Berry Size and
Favorable Bud Set Traits
INVENTORS • Eric Zeldin, Brent McCown
WARF: P100154US01
View U.S. Patent #PP025066 at Google Patents
Since its founding in 1925 as the patenting and
licensing organization for the University of Wisconsin-
The Wisconsin Alumni Research Foundation (WARF) is seeking commercial
partners interested in a new cranberry variety with superior fruit size,
coloration, yield potential, fertilizer tolerance and flower bud sets as
compared to the predominant cranberry cultivar.
Madison, WARF has been working with business and
industry to transform university research into products
that benefit society. WARF intellectual property
managers and licensing staff members are leaders in
the field of university-based technology transfer. They
are familiar with the intricacies of patenting, have
worked with researchers in relevant disciplines,
understand industries and markets, and have
negotiated innovative licensing strategies to meet the
Cranberry is Wisconsin’s number one fruit crop. Wisconsin provides nearly 60 percent of
the U.S. supply, and significant growth in demand, particularly for fruit for sweetened dried
cranberries, is expected to continue over the next decade.
individual needs of business clients.
UW–Madison researchers have developed a new variety of cranberry with the trade name
“Sundance.” This variety was developed through a cross of the “Stevens” cultivar and a
seedling selection of “Ben Lear” that offers significantly improved traits over its “Ben
Lear” parent. “Sundance” is superior to the predominant cranberry cultivar “Stevens” in
fruit size, overall coloration, yield potential and flower bud set. Also, under high crop loads,
“Sundance” tolerates high levels of fertilizer to improve yield and flower bud set without
causing excessive vine growth. Researchers believe that the improved fruit quality of
“Sundance,” specifically larger size and solid cell structure, will result in an improved
variety for sweetened dried cranberry production.
Growers interested in this cranberry variety should license the variety from WARF and
obtain vines from one of the approved propagators listed below. The license between
WARF and the grower must be in place before vines can be obtained.
• Cranberry Creek Cranberries Inc.
• Dempze Cranberry Co.
Wisconsin Alumni Research Foundation | 614 Walnut Street, 13th Floor | Madison, WI 53726 | [email protected] |
WARF: P100154US01
• Cranberry production KEY BENEFITS
• Large berry size – tests have indicated 60 percent of the “Sundance” yield was in berries greater than two grams, as compared to less than
20 percent in “Stevens.”
• Excellent bud set traits, both in general bud set and in rebud (return bloom)
• Fruit color is initially similar to “Stevens,” but color accumulation will proceed even when “Stevens” does not.
• High yield potential – unoptimized initial large-plot testing indicated 650 barrels per acre; subsequent multi-acre tests showed yields up to
twice that of fully established “Stevens” on four-year-old “Sundance.”
• Fertilizer tolerance – will not runner excessively under high crop loads
• Can be scaled up to full production relatively quickly
Several years of field trials have been completed with excellent results. A number of full beds are now in commercial development.
The development of this technology was supported by the WARF Accelerator Program. The Accelerator Program selects WARF’s most
commercially promising technologies and provides expert assistance and funding to enable achievement of commercially significant
milestones. WARF believes that these technologies are especially attractive opportunities for licensing.
Related Portfolios
WARF Accelerator Program Technologies
Related Technologies
See WARF reference number P01289US for a previously developed high-color, early maturing cranberry hybrid called “HyRed.”
Tech Fields
Agriculture - Plant varieties
For current licensing status, please contact Emily Bauer at [email protected] or (608) 262-8638.
Wisconsin Alumni Research Foundation | 614 Walnut Street, 13th Floor | Madison, WI 53726 | [email protected] |