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Indigocrisp and Other SHB Selections from the UF-IFAS Breeding Program

Indigocrisp and Other SHB Selections from the UF-IFAS Breeding Program. Dr. Jim Olmstead February 20, 2014. UF Variety Release. Must adhere to current UF-IFAS standards Tested in enough replication, locations, years, etc. Chain of custody – developmental timeline, MTA agreements

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Indigocrisp and Other SHB Selections from the UF-IFAS Breeding Program

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  1. Indigocrisp and Other SHB Selections from the UF-IFAS Breeding Program Dr. Jim Olmstead February 20, 2014

  2. UF Variety Release • Must adhere to current UF-IFAS standards • Tested in enough replication, locations, years, etc. • Chain of custody – developmental timeline, MTA agreements • Foundation stock • Plan for intellectual property protection and commercialization

  3. UF Variety Release • Release justification presented to Departmental and IFAS cultivar release committees. • After release, Florida Foundation Seed Producers, Inc. handles commercialization for the University of Florida.

  4. Royalties • UF – IFAS policy on release, protection and introduction of plant material: 70% of the royalty payment comes directly back to the breeding program Royalty payments fund the breeding program: salary, students, and infrastructure

  5. IndigocrispTM ‘FL98-325’ – (USPPAF)

  6. FL 98-325 (IndigocrispTM) • FL 98-325 is an early maturing crisp-textured genotype best adapted to areas with chilling requirements similar to or higher than Gainesville, FL. The key positive attributes for FL 98-325 are: • Very firm, crisp texture similar to Bluecrisp and Sweetcrisp • Earlier maturing than either Bluecrisp or Sweetcrisp • Higher yields than existing crisp textured genotypes • Potential for machine harvest for fresh market production • Reduced postharvest bruising or pathogen damage • Good flavor and size • Good vegetative budbreak with high crop loads

  7. FL 98-325 (IndigocrispTM) • Potential problems with FL 98-325: • Higher chill requirement means limited potential in expanding production areas in Florida (I-4 south). • Propagation by softwood stem cuttings has often resulted in low rooting percentages. • Susceptible to Botryosphaeria stem blight. • Darker fruit color

  8. 11/27/2012

  9. 1/30/2013 4/2/2012

  10. 11/27/2012

  11. Field Ratings (2011-2013)

  12. Lab Ratings (2013)

  13. Consumer Evaluation of Crisp Texture

  14. Consumer Evaluation of Crisp Texture

  15. Additional Information • Mehra et al. 2013. Postharvest disease development on southern highbush blueberry fruit in relation to berry flesh type and harvest method. Plant Dis. 97:213-221 • Machine harvested fruit with crisp texture (including FL 98-325) had the same or lower postharvest disease incidence as hand harvested conventional texture fruit • Takeda et al. 2013. Techniques for increasing machine harvest efficiency in southern highbush and rabbiteye blueberry. HortTechnology 23:430-436. • FL 98-325 had the highest packout percentages after machine harvest (94% - similar to hand harvest)

  16. Foundation Stock • MTA 12-094 (AgriStarts, Inc.) allows for the initiation and propagation of FL 98-325 prior to license offerings. • Initiation completed winter 2012-13, multiplication stage currently Initial budwood distribution will be limited. Breeder stock is maintained at the PSREU at Citra. • Contact Florida Foundation Seed Producers for license information • 352-273-3656 • www.ffsp.net

  17. Summary • FL 98-325 is an early-maturing, crisp genotype which will add another machine harvest for fresh market suitable variety to the short list currently available to Southeastern blueberry growers. • Unreliable propagation has been the biggest difficulty in the past. We hope to minimize this problem by making tissue culture plantlets available at the time licenses are offered. • FL 98-325 consistently ranks higher in yield than other crisp-textured genotypes, and the sugar/acid ratio beats many current varieties.

  18. Dec. 2013 Jan. 2014

  19. Feb. 2014 Feb. 2014 after H.C.

  20. Harvest Timing

  21. Dr. Jim Olmstead • UF-IFAS Horticultural Sciences Dept. • 2211 Fifield Hall • Gainesville, FL 32611 • (352) 273-4837 • http://www.hos.ufl.edu/faculty/jwolmstead

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