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Osceola

Strawberry

Denomination: 'Osceola'
Previously Proposed Denomination: 'Driscoll Osceola'
Synonym: Driscoll Osceola
Botanical Name: Fragaria × ananassa
Applicant/Holder: Driscoll's, Inc.
345 Westridge Drive
Watsonville, California
95076
United States of America
Breeder: Amy Martin, Driscoll's, Inc., Watsonville, United States of America
Agent in Canada: Lavery, De Billy, S.E.N.C.R.L. - LLP
1, Place Ville Marie, Bureau 4000
Montreal, Quebec
H3B 4M4
Canada
Tel: 514 397-5138
Application Date: 2003-10-02
Application Number: 04-4294
Grant of Rights Date: 2008-12-05
Certificate Number: 3425
Exemption from compulsory licensing: Yes
Expiry date for exemption from compulsory licensing: 2010-12-05
Grant of Rights Termination Date: 2026-12-05

Variety Description

Variety used for comparison: 'Biscayne'

Summary: 'Osceola' differs from 'Biscayne' mainly in the general attitude of the terminal leaflet tip, anthocyanin colouration of the stipule, stolon thickness, difference in primary and secondary fruit shape and fruit skin and flesh colour. 'Osceola' has a reflexing terminal leaflet tip while it is flat for 'Biscayne'. The anthocyanin colouration of the stipule is medium to strong for 'Osceola' while it is absent or very weak for 'Biscayne'. 'Osceola' has a thin to medium thick stolon while it is medium to thick for 'Biscayne'. There is a moderate difference in the shape between the primary and secondary fruit for 'Osceola' while there is a marked difference for 'Biscayne'. The colour of the fruit skin and flesh is more orange red for 'Osceola' while the fruit skin is red to dark red and the flesh is light red for 'Biscayne'.

Description:

PLANT: not everbearing, flat globose to flat growth habit, strong vigour, early to midseason harvest maturity

LEAF: medium to dark green on upper side, semi-upwards to horizontal profile, weak to medium interveinal blistering, three leaflets per leaf
TERMINAL LEAFLET: slightly concave in profile, reflexing attitude of leaf tip, as long as broad length/width ratio, obtuse base, acute shape of teeth
PETIOLE: medium pubescence, hairs pointing upwards
STIPULE: medium strong anthocyanin colouration

STOLON: medium to many in number, weak to medium anthocyanin colouration, thin to medium thickness, medium to dense pubescence

TIME OF FLOWERING: early
INFLORESCENCE: level with to positioned above foliage
FLOWER: medium size, calyx diameter equal in size to corolla, inner calyx diameter equal in size to outer calyx
PETALS: overlapping on secondary flowers, broader than long

FRUITING TRUSS: semi-erect attitude at first picking, medium to long
FRUIT: broader than long to as long as broad, medium in size, conical, moderate difference in shape between primary and secondary fruit, absent or very narrow band without achenes
FRUIT SKIN: absent or very weak unevenness of surface, orange red, even colour, medium to strong glossiness
ACHENES: level with to above surface of fruit
CALYX: set in a basin, slightly larger to larger than fruit diameter, weak medium to medium adherence
FRUIT FLESH: medium to firm, orange red to medium red, slightly uneven to even colour, medium to strong sweetness, very fine texture when tasted, weak acidity

Origin & Breeding History: 'Osceola' originated as a result of a controlled cross between 'Marathon' and 'Sonora' in an ongoing breeding program, and was discovered as a seedling in Monterey County, California in 1999. The original seedling of the new cultivar was asexually propagated by stolons in a nursery in Shasta County, California. Propagules were transplanted to a controlled breeding plot in Monterey County, California, where the variety was identified and selected for further evaluation. Selection criteria included fruit colour, fruiting truss length, leaflet margin and teeth and fruit shape.

Tests & Trials: The bare root strawberry plants were planted in the spring of 2006 on raised beds, double rows staggered, 30 cm between plants and 30 cm between rows, in a total of 4 rows per bed. Drip irrigated and daily fertilized according to Publication 513, Growing Strawberries in Ontario. The examination was completed in the summer of 2007.

Click on image for larger view
Osceola
Strawberry: 'Osceola' (right) with reference variety 'Biscayne' (left)

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