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UCD Warrior

Strawberry

Denomination: 'UCD Warrior'
Botanical Name: Fragaria × ananassa
Applicant/Holder: The Regents of the University of California

1111 Franklin Street, 12th Floor
Oakland, California
94607-5200
United States of America
Breeder: Glenn S. Cole, University of California, Plant Sciences, Davis, Davis, United States of America
Douglas Shaw, Davis, United States of America
Kirk D. Larson, Irvine, United States of America
Steven J. Knapp, University of California, Plant Sciences, Davis, Davis, United States of America
Agent in Canada: Expert Agriculture Team Ltd.
46420 Prairie Central Road
Chilliwack, British Columbia
V2P 6H3
Canada
Tel: 604-795-2537
Application Date: 2021-01-19
Provisional Protection:: 2021-01-19
Application Number: 21-10411
Grant of Rights Date: 2023-10-26
Certificate Number: 6933
Grant of Rights Termination Date: 2043-10-26

Variety Description

Varieties used for comparison: 'Fronteras' and 'Rainier'

Summary: 'UCD Warrior' has a medium number of stolons whereas 'Fronteras' has medium to many stolons and 'Rainier' has absent or very few to few stolons. The leaf of 'UCD Warrior' is large whereas the leaf of both reference varieties is small to medium sized. The petiole of 'UCD Warrior' is long whereas the petiole of both reference varieties is short to medium. The fruit of 'UCD Warrior' is very large whereas the fruit of both reference varieties is medium to large. The fruit of 'UCD Warrior' has a narrow to medium band without achenes whereas the fruit of 'Fronteras' has an absent or very narrow band without achenes and 'Rainier' has absent or very narrow to narrow band without achenes.

Description:

PLANT: not remontant type, upright growth habit, medium to dense foliage, strong vigour
STOLONS: medium number, medium intensity of anthocyanin colouration, medium density pubescence

PETIOLE: long, horizontal attitude of hairs
STIPULE: medium to strong intensity of anthocyanin colouration
LEAF: large, light green upper side, absent or weak blistering, medium glossiness, no variegation
TERMINAL LEAFLET: moderately longer than wide, acute base, serrate and crenate margin, concave in cross-section

FLOWERING: begins early
INFLORESCENCE: positioned beneath foliage, many flowers
PEDICEL: horizontal attitude of hairs
FLOWER: calyx same size as corolla, touching petal arrangement, stamen present
PETAL: length equal to width, white inner side

CALYX: attachment level with fruit, diameter slightly smaller than fruit, outwards attitude of sepals, weak adherence to fruit
FRUIT: begins ripening early, moderately longer than wide, very large, conical and cordate shape, none or very slight to slight difference in shape between terminal fruit and other fruit, medium firmness, large cavity
FRUIT SURFACE: medium red, slightly uneven colour distribution, strong glossiness, slightly uneven, narrow to medium width band without achenes, achenes positioned below surface
FRUIT FLESH: light red, light red core

Origin & Breeding History: 'UCD Warrior' originated from a cross conducted in the winter of 2011 in Davis, California. The cross was made between the proprietary female parent '08C123P001' and the proprietary male parent '07C092P003'. 'UCD Warrior' was selected for asexual propagation in 2012 based on resistance to pests, fruit firmness, flavour, size, resistance to bruising and post-harvest deterioration, yield in the first and second year of production.

Tests & Trials: The comparative trial for 'UCD Warrior' was conducted by Expert Agriculture Team Ltd., in Chilliwack, British Columbia during the 2022 growing season. The plots were arranged in a RBC design with 3 replicates. Each replicate consisted of 10 plants for a total of 30 plants of each variety. Plants were double offset row planted with approximately 30 cm between plants and 20 centimetres between the offset rows. Measurements were taken from 10 plants or parts of 10 plants of each variety.

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UCD Warrior
Strawberry: 'UCD Warrior' (centre) with reference varieties 'Fronteras' (left) and 'Rainier' (right)

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UCD Warrior
Strawberry: 'UCD Warrior' (centre) with reference varieties 'Fronteras' (left) and 'Rainier' (right)

Click on image for larger view
UCD Warrior
Strawberry: 'UCD Warrior' (centre) with reference varieties 'Fronteras' (left) and 'Rainier' (right)

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