DrisStrawTwentyThree

Strawberry

Denomination: 'DrisStrawTwentyThree'
Trade name: Driscoll's Phoebe
Botanical Name: Fragaria ×ananassa
Applicant/Holder: Driscoll's, Inc.
A California Corporation
P.O. Box 50045, 345 Westridge Drive
Watsonville, California
95077-5045
United States of America
Breeder: Philip J. Stewart, Watsonville, United States of America
Esther J. Pullen, Valrico, United States of America
Kristie L. Gilford, Dover, United States of America
Bruce D. Mowrey, Watsonville, 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: 2011-10-04
Application Number: 12-7712
Grant of Rights Date: 2016-03-22
Certificate Number: 5229
Grant of Rights Termination Date: 2036-03-22

Variety Description

Varieties used for comparison: 'Sanibel' and 'Festival'

Summary: The plants of 'DrisStrawTwentyThree' have sparse density of foliage with weak to medium vigour whereas the plants of 'Festival' have dense to very dense foliage with strong to very strong vigour. The inflorescence of 'DrisStrawTwentyThree' is positioned above the foliage whereas it is positioned beneath the foliage for 'Festival'. The plants of 'DrisStrawTwentyThree' have no or very few stolons whereas those of 'Festival' have many. The inflorescence of 'DrisStrawTwentyThree' has many to very many flowers whereas that of 'Sanibel' has medium to many and 'Festival' has a medium number. The petal arrangement on the flowers of 'DrisStrawTwentyThree' is free whereas it is touching for 'Festival'. The fruit firmness of 'DrisStrawTwentyThree' is soft to medium whereas it is firm for 'Sanibel'. The fruit cavity of 'DrisStrawTwentyThree' is medium to large whereas it is absent or small in 'Festival'.

Description:

PLANT: upright growth habit, sparse foliage, weak to medium vigour, day neutral type
STOLONS: absent or very few, absent or very weak intensity of anthocyanin colouration, absent or sparse density of pubescence

LEAF: medium size, medium green on upper side, absent or weak blistering, strong glossiness, no variegation
TERMINAL LEAFLET: moderately longer than width, obtuse base, serrate and crenate margin, concave shape in cross-section
PETIOLE: medium length, horizontal attitude of hairs
STIPULE: medium intensity of anthocyanin colouration

TIME OF BEGINNING OF FLOWERING: mid to late season
INFLORESCENCE: positioned above foliage, many to very many flowers, upwards attitude of hairs on pedicel
FLOWER: calyx diameter smaller than corolla, stamens present
PETALS: free, equal in length and width, white

TIME OF BEGINNING OF FRUIT RIPENING: mid to late season
FRUIT: moderately longer than width, medium to large, conical, absent or very narrow band without achenes
FRUIT SKIN: medium red, even or very slightly uneven colour, medium glossiness, even or very slightly uneven surface
ACHENES: inserted level with fruit surface
CALYX: attachment inserted, outwards attitude of sepals, slightly larger than diameter of fruit
FRUIT FLESH: soft to medium firmness, medium red, light red core, medium to large fruit cavity

Origin & Breeding History: 'DrisStrawTwentyThree' arose from the cross of the unnamed proprietary variety '1M16' (female parent) by another unnamed proprietary variety '87K286' (male parent) conducted in January 2006 in Hillsborough County, Florida, USA. In December 2007, 'DrisStrawTwentyThree' was initially selected from the seedling population based on high yield, fruit size and medium sweetness. It was asexually propagated at Driscoll Nursery in Shasta County, California and underwent further propagation and testing from 2007 to 2011 in Hillsborough County, Florida, USA.

Tests & Trials: Trials for 'DrisStrawTwentyThree' were conducted in Chilliwack, British Columbia during the 2014 growing season. The plots were planted in the spring of 2013 in a randomized complete block design (RCBD). Each variety consisted of 3 replicates/variety with 5 plants per replicate (for a total of 15 plants of each variety). Plants were spaced approximately 30 centimetres between plants in the row and spaced approximately 2.5 metres apart between rows. Measured characteristics were based on 10 measurements.

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DrisStrawTwentyThree
Strawberry: 'DrisStrawTwentyThree' (top) with reference varieties 'Festival' (centre) and 'Sanibel' (bottom)

Click on image for larger view
DrisStrawTwentyThree
Strawberry: 'DrisStrawTwentyThree' (top) with reference varieties 'Festival' (centre) and 'Sanibel' (bottom)

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