UCD Royal Royce
| Denomination: | 'UCD Royal Royce' |
|---|---|
| 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: | 21-10408 |
| Grant of Rights Date: | 2023-10-26 |
| Certificate Number: | 6930 |
| Grant of Rights Termination Date: | 2043-10-26 |
Variety Description
Varieties used for comparison: 'Cabrillo' and 'Albion'
Summary: The leaf of 'UCD Royal Royce' has a medium degree of blistering whereas both reference varieties have absent or weak blistering. The petiole of 'UCD Royal Royce' is long whereas the petiole of 'Cabrillo' is short to medium length and 'Albion' is medium length. The fruit of 'UCD Royal Royce' is very large whereas the fruit of 'Cabrillo' is medium to large and the fruit of 'Albion' is large. The calyx of 'UCD Royal Royce' is slightly larger than the fruit whereas the calyx of both reference varieties is slightly smaller than the fruit. The fruit of 'UCD Royal Royce' is of medium firmness whereas the fruit of 'Cabrillo' is firm and 'Albion' is very firm.
Description:
PLANT: day neutral type, upright growth habit, dense foliage, strong vigour
STOLONS: medium number, weak to medium intensity of anthocyanin colouration, dense pubescence
PETIOLE: long, horizontal attitude of hairs
STIPULE: absent or very weak to weak intensity of anthocyanin colouration
LEAF: large, medium green upper side, medium degree of blistering, absent or weak glossiness, no variegation
TERMINAL LEAFLET: equal length and width, acute base, serrate and crenate margin, concave in cross-section
FLOWERING: begins very early to early
INFLORESCENCE: positioned beneath foliage, many flowers
PEDICEL: slightly outwards attitude of hairs
FLOWER: calyx larger than corolla, touching petal arrangement, stamen present
PETAL: moderately shorter than wide, white inner side
CALYX: attachment level with fruit, diameter slightly larger than fruit, upwards and outwards attitude of sepals, medium adherence to fruit
FRUIT: begins ripening early, moderately longer than wide, very large, conical shape, slight difference in shape between terminal fruit and other fruit, medium firm, medium sized cavity
FRUIT SURFACE: medium red, slightly uneven colour distribution, strong glossiness, even or slightly uneven, absent or very narrow to narrow band without achenes, achenes positioned below surface
FRUIT FLESH: light red, white core
Origin & Breeding History: 'UCD Royal Royce' originated from a cross conducted in the winter of 2008 in Davis, California. The cross was made between the proprietary female parent '03C114P003' and the proprietary male parent '04C009P005'. 'UCD Royal Royce' was selected for asexual propagation in 2009 based on yield, resistance to bruising and post-harvest deterioration, fruit appearance, and reduced runner production in coastal regions.
Tests & Trials: The comparative trial for 'UCD Royal Royce' 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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Strawberry: 'UCD Royal Royce' (centre) with reference varieties 'Albion' (left) and 'Cabrillo' (right)
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Strawberry: 'UCD Royal Royce' (centre) with reference varieties 'Albion' (left) and 'Cabrillo' (right)
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Strawberry: 'UCD Royal Royce' (centre) with reference varieties 'Albion' (left) and 'Cabrillo' (right)
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