DrisBlackThree

Blackberry

Denomination: 'DrisBlackThree'
Trade name: Driscoll's Monica
Botanical Name: Rubus
Applicant/Holder: Driscoll's, Inc.
A California Corporation
P.O. Box 50045, 345 Westridge Drive
Watsonville, California
95077-5045
United States of America
Breeder: Gavin R. Sills, Driscoll's Inc., Watsonville, United States of America
Carlos D. Fear, Driscoll's, Inc., Watsonville, United States of America
Andrea M. Pabon, Driscoll's Inc., 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: 2011-11-04
Application Number: 12-7710
Grant of Rights Date: 2016-01-06
Certificate Number: 5166
Grant of Rights Termination Date: 2036-01-06

Variety Description

Varieties used for comparison: 'Carmel' and 'Olallie'

Summary: The intensity of anthocyanin colouration on the dormant canes of 'DrisBlackThree' is medium to medium to strong whereas it is very weak on 'Carmel'. The spines on the dormant canes of 'DrisBlackThree' are few to medium in number whereas there are many on 'Olallie'. The spines of 'DrisBlackThree' are very small whereas they are medium sized on 'Carmel' and small to medium sized on 'Olallie'. The leaf stipules of 'DrisBlackThree' are small whereas they are medium sized on 'Carmel'. The flower diameter of 'DrisBlackThree' is smaller than that of 'Carmel'. There are few prickles on the fruiting laterals of 'DrisBlackThree' whereas there are many on 'Olallie'. The drupelets of the fruit of 'DrisBlackThree' are medium to large whereas those of the fruit of 'Olallie' are small to medium size. In longitudinal section, the fruit shape of 'DrisBlackThree' is medium ovate whereas that of 'Carmel' is oblong and 'Olallie' is long conical to oblong. 'DrisBlackThree' begins flowering and ripening fruit mid-season on previous season's cane whereas 'Carmel' begins late in the season.

Description:

PLANT: upright growth habit, medium number of new canes, non-suckering

DORMANT CANE: medium to medium to strong anthocyanin colouration, few to medium number of branches, distribution of branches predominantly only on the upper half of cane, rounded to angular in cross section
SPINES: present, few to few to medium in number, very small, outwards attitude of apex in relation to cane

LEAF: predominantly five leaflets per leaf, palmate type, medium intensity of green colour of upper side, medium glossiness of upper side, small stipules
TERMINAL LEAFLET: lobing absent, v-shaped in cross section, absent or very weak undulation of margin, medium to strong blistering between veins, shallow to medium depth bi-serrate incisions of margin

BEGINNING OF FLOWERING ON PREVIOUS YEAR'S CANE: mid-season
FLOWER: white, medium density of glandular hairs on pedicel

BEGINNING OF FRUIT RIPENING: mid-season
FRUITING LATERAL: few prickles
FRUIT: bears on previous year's cane, small to medium length/width ratio, medium ovate shape in longitudinal section, black
DRUPELETS: medium to many, medium to large sized

Origin & Breeding History: 'DrisBlackThree' arose from the cross 'Carmel' (female parent) by 'Zorro' (male parent) conducted in 2001 at Cassin Ranch, Santa Cruz County, California, USA. In July 2003, 'DrisBlackThree' was initially selected from the seedling population based on early bud burst, long production season, high yield, good flavour and shipping quality. It was asexually propagated at Driscoll Nursery in Santa Cruz County, California and underwent further propagation and testing from 2003 to 2011.

Tests & Trials: The comparative trial for 'DrisBlackThree' was 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 3 plants per replicate for a total of 9 plants of each variety. Plants were spaced approximately 1.2 metres between plants in the row and spaced approximately 2.5 metres apart between rows. Measured characteristics were based on 10 measurements.


Comparison table for 'DrisBlackThree' with reference varieties 'Carmel' and 'Olallie'

Flower diameter (cm)

  'DrisBlackThree' 'Carmel' 'Olallie'
mean 4.6 5.06 3.3
std. deviation 0.27 0.51 0.35

Click on image for larger view
DrisBlackThree
Blackberry: 'DrisBlackThree' (top left) with reference varieties 'Olallie' (top right) and 'Carmel' (bottom)

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