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DrisStrawFiftyOne

Strawberry

Denomination: 'DrisStrawFiftyOne'
Botanical Name: Fragaria × ananassa
Applicant/Holder: Driscoll's, Inc.
345 Westridge Drive
Watsonville, California
95076
United States of America
Breeder: Esther Kibbe, Driscoll's, Inc., Watsonville, United States of America
Philip J. Stewart, 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: 2017-06-26
Provisional Protection:: 2017-09-27
Application Number: 17-9299
Grant of Rights Date: 2022-05-04
Certificate Number: 6576
Exemption from compulsory licensing: Yes
Expiry date for exemption from compulsory licensing: 2024-05-04
Grant of Rights Termination Date: 2042-05-04

Note: The applicant has requested an exemption from compulsory licensing to allow time to multiply and distribute propagating material of the variety. If the exemption is granted, it may be allowed for two years from the date rights are granted for the variety.


Variety Description

Varieties used for comparison: 'Ventana' and 'Driscoll El Dorado'

Summary: The stolons of 'DrisStrawFiftyOne' have a strong intensity of anthocyanin colouration whereas the stolons of 'Ventana' have a very strong intensity of anthocyanin colouration and those of 'Driscoll El Dorado' have a medium intensity of anthocyanin colouration. The stipule of 'DrisStrawFiftyOne' has a strong intensity of anthocyanin colouration whereas the stipule of 'Driscoll El Dorado' has a weak intensity of anthocyanin colouration. The leaf of 'DrisStrawFiftyOne' has an absent or weak degree of blistering whereas the leaf of 'Driscoll El Dorado' has a strong degree of blistering. The leaf of 'DrisStrawFiftyOne' has an absent or weak degree of glossiness whereas the leaf of 'Ventana' has medium glossiness. The terminal leaflet of 'DrisStrawFiftyOne' has a length equal to the width whereas the terminal leaflet of 'Ventana' is moderately longer than the width. The calyx of 'DrisStrawFiftyOne' is slightly larger than the fruit whereas the calyx of 'Ventana' is the same size as the fruit. The fruit of 'DrisStrawFiftyOne' is moderately longer than wide whereas the fruit of 'Ventana' is much longer than wide and the fruit of 'Driscoll El Dorado' has a length equal to the width. The fruit of 'DrisStrawFiftyOne' is large whereas the fruit of 'Ventana' is very large. The fruit surface of 'DrisStrawFiftyOne' is medium red whereas the fruit surface of 'Driscoll El Dorado' is orange red. The surface of the fruit of 'DrisStrawFiftyOne' is slightly uneven whereas the surface of the fruit of 'Ventana' is even or very slightly uneven. The achenes on the surface of the fruit of 'DrisStrawFiftyOne' are level with the surface whereas the achenes of both reference varieties are below the surface of the fruit.

Description:

PLANT: partially remontant bearing type, semi-upright growth habit, sparse foliage, weak vigour
STOLONS: few, strong intensity of anthocyanin colouration, dense pubescence

PETIOLE: medium length, slightly outwards attitude of hairs
STIPULE: strong intensity of anthocyanin colouration
LEAF: medium size, medium green upper side, absent or weak blistering, absent or weak degree of glossiness on upper side, no variegation
TERMINAL LEAFLET: length equal to width, acute base, crenate margin, straight in cross-section

FLOWERING: begins mid-season
INFLORESCENCE: positioned at same level as foliage, few to medium number of flowers
PEDICEL: slightly outwards attitude of hairs
FLOWER: calyx larger than corolla, small to medium diameter, touching petal arrangement, stamen present
PETAL: length equal to width, greenish white inner side

CALYX: attachment level with fruit, diameter slightly larger than fruit, outwards attitude of sepals, medium adherence to fruit
FRUIT: begins ripening mid-season, moderately longer than wide, large, conical, none or very slight difference in shape between terminal fruit and other fruit, firm, absent or small cavity
FRUIT SURFACE: medium red, slightly uneven colour distribution, medium glossiness, slightly uneven, absent or very narrow band without achenes, achenes positioned level surface
FRUIT FLESH: whitish, white core

Origin & Breeding History: 'DrisStrawFiftyOne' originated from a cross conducted on December 7, 2010 in Hillsborough Country, Florida, USA. The cross was made between the proprietary female parent designated '166T218' and the proprietary male parent variety 'DrisStrawForty'. A single plant was selected for asexual propagation by tissue culture and vegetative cuttings in February 2012 in Shasta County, California, USA based on yield, rain tolerance, fruit size and fruit flavour. Further propagation and testing was conducted in Huelva, Spain from 2015 to 2016.

Tests & Trials: The detailed description of 'DrisStrawFiftyOne' is based on the UPOV report of Technical Examination, application number 2017/1982, purchased from the Community Plant Variety Office, in Angers, France. The trials were conducted at the Escaroupim Studies Center - Ministry of Agriculture, Forestry and Rural Development, in Portugal from 2019 to 2020.

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DrisStrawFiftyOne
Strawberry: 'DrisStrawFiftyOne'

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DrisStrawFiftyOne
Strawberry: 'DrisStrawFiftyOne'

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DrisStrawFiftyOne
Strawberry: 'DrisStrawFiftyOne'

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