Presentation on theme: "Indigocrisp and Other SHB Selections from the UF-IFAS Breeding Program"— Presentation transcript:
1Indigocrisp and Other SHB Selections from the UF-IFAS Breeding Program Dr. Jim OlmsteadFebruary 20, 2014
2UF Variety Release Must adhere to current UF-IFAS standards Tested in enough replication, locations, years, etc.Chain of custody – developmental timeline, MTA agreementsFoundation stockPlan for intellectual property protection and commercialization
3UF Variety ReleaseRelease justification presented to Departmental and IFAS cultivar release committees.After release, Florida Foundation Seed Producers, Inc. handles commercialization for the University of Florida.
4RoyaltiesUF – IFAS policy on release, protection and introduction of plant material:70% of the royalty payment comes directly back to the breeding programRoyalty payments fund the breeding program: salary, students, and infrastructure
6FL (IndigocrispTM)FL 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 are:Very firm, crisp texture similar to Bluecrisp and SweetcrispEarlier maturing than either Bluecrisp or SweetcrispHigher yields than existing crisp textured genotypesPotential for machine harvest for fresh market productionReduced postharvest bruising or pathogen damageGood flavor and sizeGood vegetative budbreak with high crop loads
7FL 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
16Additional Information Mehra et al Postharvest disease development on southern highbush blueberry fruit in relation to berry flesh type and harvest method. Plant Dis. 97:Machine harvested fruit with crisp texture (including FL ) had the same or lower postharvest disease incidence as hand harvested conventional texture fruitTakeda et al Techniques for increasing machine harvest efficiency in southern highbush and rabbiteye blueberry. HortTechnology 23:FL had the highest packout percentages after machine harvest (94% - similar to hand harvest)
17Foundation StockMTA (AgriStarts, Inc.) allows for the initiation and propagation of FL prior to license offerings.Initiation completed winter , multiplication stage currentlyInitial budwood distribution will be limited. Breeder stock is maintained at the PSREU at Citra.Contact Florida Foundation Seed Producers for license information
18SummaryFL 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 consistently ranks higher in yield than other crisp-textured genotypes, and the sugar/acid ratio beats many current varieties.
21Total pounds/week for 5 bushes (3-yr old planting) Harvest TimingTotal pounds/week for 5 bushes (3-yr old planting)Week of YearFLSel01Jewel53.00671.1980.889103.63112.75125.38133.76144.325.69154.828.45162.6916.7173.444.50184.198.69191.38Total (Pound/5 bush)41.4344.91Pound/acre (1800 plants)15,00016,000