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DrisBlackThirteen

Blackberry

Denomination: 'DrisBlackThirteen'
Botanical Name: Rubus
Applicant/Holder: Driscoll's, Inc.
345 Westridge Drive
Watsonville, California
95076
United States of America
Breeder: Gavin R. Sills, Driscoll's, Inc., Watsonville, United States of America
Mark Crusha, Driscoll's, Inc., Watsonville, United States of America
Andrea M. Pabon, 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: 2016-01-14
Application Number: 16-8787
Grant of Rights Date: 2020-08-18
Certificate Number: 6248
Grant of Rights Termination Date: 2040-08-18

Variety Description

Variety used for comparison: 'DrisBlackTwo'

Summary: The anthocyanin colouration on the dormant canes of 'DrisBlackThirteen' is absent while it is of medium to strong intensity for 'DrisBlackTwo'. The margin of the terminal leaflet of 'DrisBlackThirteen' has no undulation while that of 'DrisBlackTwo' has strong undulation. The fruit of 'DrisBlackThirteen' has a very large length to width ratio, is long conical and is longer than the fruit of `DrisBlackTwo', which has a medium length to width ratio and is circular.

Description:

PLANT: upright growth habit, medium to many new canes, non-suckering

DORMANT CANE: absent or very weak anthocyanin colouration, medium number of branches, distribution of branches predominantly over whole length of cane, rounded to angular in cross-section
SPINES: absent

YOUNG SHOOT: strong intensity of anthocyanin colouration, medium green, many glandular hairs

TIME OF LEAF BUD BURST: mid-season
LEAF: predominantly three leaflets per leaf, palmate type, medium green on upper side, weak to medium glossiness of upper side, medium to large stipules
TERMINAL LEAFLET: no lobing, v-shaped in cross-section, absent or very weak undulation of margin, weak to medium blistering between veins, medium depth bi-serrate incisions of margin

BEGINNING OF FLOWERING: late on previous and current year's cane
FLOWER: pinkish, dense glandular hairs on pedicel

BEGINNING OF FRUIT RIPENING: late on previous and current year's cane
FRUITING LATERAL: no prickles
FRUIT: very large length/width ratio, long conical in longitudinal cross-section, black
DRUPELETS: very many, large

Origin & Breeding History: 'DrisBlackThirteen' was discovered in Santa Cruz County, California, USA in December 2009 originating from a cross conducted in April 2008 between two proprietary varieties, 'BP571' (female parent) and 'BP544' (male parent). The original seedling was first asexually propagated at a nursery in Santa Cruz County, California in 2009. Initial selection criteria included productivity, medium sized black fruit and selft-fruitful plants. 'DrisBlackThirteen' was further propagated by tissue culture and root cuttings and underwent testing at a nursery in Santa Cruz County, California from 2012 to 2014.

Tests & Trials: The comparative trial for 'DrisBlackThirteen' was conducted in Chilliwack, British Columbia during the 2017 and 2018 growing seasons. Each variety consisted of 3 replicates per variety with 3 plants per replicate for a total of 9 plants of each variety. Plants were spaced approximately 1 metre apart in the row. Measured characteristics were based on 10 measurements.


Comparison table for 'DrisBlackThirteen' with reference variety 'DrisBlackTwo'

Fruit length (cm)

  'DrisBlackThirteen' 'DrisBlackTwo'
mean 3.8 2.72
std. deviation 0.47 0.29

Click on image for larger view
DrisBlackThirteen
Blackberry: 'DrisBlackThirteen' (left) with reference variety 'DrisBlackTwo' (right)

Click on image for larger view
DrisBlackThirteen
Blackberry: 'DrisBlackThirteen' (left) with reference variety 'DrisBlackTwo' (right)

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