Keecrisp FL06-556

U.S. Patent PP27,771
Southern Highbush Blueberry Variety

General Description

Keecrisp is a mid-to-late-maturing variety producing berries with an extremely crisp and firm texture.

Cultivar name: Keecrisp (selection code FL 06-556)

Recommended for Florida: no, too late for the Florida market window.

FL region best adapted to: none

Production system: deciduous

Hydrogen cyanamide: Recommended; needs hydrogen cyanamide for leafing

Machine Harvestability: Possible; it has performed well under grower trials. Suitable for machine harvest for fresh market.

Per plant yields (Density 1,452-1,742 plants/acre):

o North-central FL (2015-2019): 2.2 – 7.0 lbs/plant, average 4.8 lbs/plant

Known disease susceptibility: none observed to date

Known insect damage susceptibility: none observed to date

Fruit quality data:

o Fruit firmness: 250 – 303 g/mm, average 267 g/mm, much higher than Emerald

o Berry Weight: 2.1 – 3.0 grams, average 2.5 grams, similar to Emerald

o Berry Diameter: 17.5 – 20.2 mm, average 18.6 mm, similar to Emerald

o Brix: 10.6 – 13.1, average 12.1, higher than Emerald

o Brix/Acid Ratio: 37.3 – 78.7, average 58.9, much higher than Emerald

o Fruit scar: small and dry

o Wax/bloom: medium

o Fruit defects: none observed

o Flavor Score: 24.5 – reference Emerald (19.9), Kestrel (29.0)

o Aroma: none

Cultivars with overlapping timing of flowering: Emerald, Farthing, Kestrel, Magnus, Patrecia, San Joaquin, Vireo

Other information: Has an upright plant architecture and has shown to have high yield when receiving adequate chilling. Leafing may be delayed, even with hydrogen cyanamide application.

License availability: For a list of current nursery licensees in the USA, click here

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Performance 2018-2019 Season

Fruit Quality and Yield

The following plots show the most important fruit quality traits and yield, across the season.

The vertical lines in the yield plots indicate when 10%, 50% and 90% of the harvest was achieved during the season.

Dotted lines indicate the desired values for new cultivars:

Berry weight greater than 2g
Fruit Diameter greater than 14mm
Firmness higher than 150g/mm
Brix higher than 10%
TTA less than 1%
Brix/TTA higher than 14 units

Warning: Yield plot coming from harvesting of two bushes. Values may seem overestimated as all the fruit from the bush is harvested, and because this is harvest yield and no packed yield. Use this data to compare among cultivars and no to predict potential yield on your farm.

Measurements are in grams (g). To convert from grams to pounds (lb) use the following formula:

lb of fruit per bush = (g of fruit) x (0.002204)