DrisStrawTwelve

Strawberry

Denomination: 'DrisStrawTwelve'
Trade name: Driscoll's Alafia
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: Esther J. Pullen, Valrico, United States of America
Kristie L. Gilford, Dover, United States of America
Bruce D. Mowrey, Watsonville, United States of America
Philip J. Stewart, 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: 2010-01-11
Application Number: 10-6804
Grant of Rights Date: 2016-03-22
Certificate Number: 5227
Grant of Rights Termination Date: 2036-03-22

Variety Description

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

Summary: The plants of 'DrisStrawTwelve' have medium density of foliage and vigour whereas the plants of 'Festival' have dense to very dense foliage and strong to very strong vigour. The inflorescence of 'DrisStrawTwelve' is positioned beneath the foliage whereas it is positioned above the foliage for 'Sanibel'. The plants of 'DrisStrawTwelve' have no or very few stolons whereas those of 'Festival' have many. The petiole of 'DrisStrawTwelve' is short to medium length whereas that of 'Festival' is long. The flower petals of 'DrisStrawTwelve' are overlapping whereas they are free on 'Sanibel' and touching on 'Festival'. The calyx attachment of 'DrisStrawTwelve' is level with the fruit whereas it is inserted in the fruit for 'Sanibel'. The attitude of the sepals of 'DrisStrawTwelve' is outwards whereas it is upwards on 'Festival'. Excluding the core, the fruit flesh of 'DrisStrawTwelve' is orange red whereas it is light red for 'Sanibel' and dark red for 'Festival'. The fruit cavity of 'DrisStrawTwelve' is large whereas it is medium size in 'Sanibel' and small in 'Festival'.

Description:

PLANT: upright growth habit, medium density of foliage, 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, medium blistering, medium glossiness, no variegation
TERMINAL LEAFLET: much longer than width, obtuse base, serrate margin, concave shape in cross-section
PETIOLE: short to medium length, slightly outwards attitude of hairs
STIPULE: medium intensity of anthocyanin colouration

TIME OF BEGINNING OF FLOWERING: mid-season
INFLORESCENCE: positioned beneath foliage, medium number of flowers, slightly outwards attitude of hairs on pedicel
FLOWER: calyx diameter smaller than corolla, stamens present
PETALS: overlapping, equal in length and width, white

TIME OF BEGINNING OF FRUIT RIPENING: mid-season
FRUIT: equal in length and width, medium-large 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 below to level with the fruit surface
CALYX: attachment level with fruit, outwards attitude of sepals, slightly larger than diameter of fruit
FRUIT FLESH: medium to firm, orange red, light red core, large cavity

Origin & Breeding History: 'DrisStrawTwelve' arose from the cross of the variety 'Sanibel' (female parent) by the variety 'Bonaire' (male parent) conducted in April 2004 in Ventura County, California, USA. In December 2004, 'DrisStrawTwelve' was initially selected from the seedling population based on yield, fruit size, fruit shape and shipping quality. It was asexually propagated at Driscoll Nursery in Shasta County, California and underwent further propagation and testing from 2004 to 2008 in Hillsborough, Florida, USA.

Tests & Trials: Trials for 'DrisStrawTwelve' 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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DrisStrawTwelve
Strawberry: 'DrisStrawTwelve' (top) with reference varieties 'Festival' (centre) and 'Sanibel' (bottom)

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

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