DrisRaspSeven

Raspberry

Denomination: 'DrisRaspSeven'
Trade name: Esperanza
Botanical Name: Rubus idaeus
Applicant/Holder: Driscoll's, Inc.
A California Corporation
P.O. Box 50045, 345 Westridge Drive
Watsonville, California
95077-5045
United States of America
Breeder: Brian K. Hamilton, Richmond, United States of America
Carlos D. Fear, Driscoll's, Inc., Watsonville, United States of America
Matthias Vitten, Watsonville, United States of America
Lluvia V. Gutierrez, Salinas, 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: 2013-04-11
Application Number: 13-7995
Grant of Rights Date: 2016-01-06
Certificate Number: 5172
Grant of Rights Termination Date: 2036-01-06

Variety Description

Varieties used for comparison: 'Maravilla' and 'Heritage'

Summary: The intensity of anthocyanin colouration on the current season's cane is very weak on 'DrisRaspSeven' whereas it is strong for both reference varieties. Previous season's canes of 'DrisRaspSeven' are shorter than those of 'Maravilla'. The current season's canes of 'DrisRaspSeven' are shorter than those of 'Heritage'. On the current season's cane, the spines of 'DrisRaspSeven' are of medium density, medium size at the base, and medium length whereas the spines for 'Maravilla' are very sparse, very small at the base, and very short. The terminal leaflet of 'DrisRaspSeven' is shorter than that of 'Heritage'. 'DrisRaspSeven' has a medium amount of spines on the pedicel whereas 'Maravilla' has few. The fruit of 'DrisRaspSeven' is medium to firm whereas the fruit of 'Heritage' is soft to medium. On the current season's cane, flowering begins mid-season for 'DrisRaspSeven' whereas 'Maravilla' begins late season.

Description:

PLANT: upright growth habit, bears fruit on both previous season's cane in summer and on current season's cane in autumn VERY YOUNG SHOOT DURING RAPID GROWTH: no anthocyanin colouration on middle third, weak intensity of anthocyanin colouration at apex

PREVIOUS SEASON'S CANE: vegetative bud burst occurs mid-season, flowering begins mid-season, fruit ripening begins mid to late season, fruiting period lasts a short to medium length of time

CURRENT SEASON'S CANE: emerges mid-season, many, medium to strong bloom, very weak intensity of anthocyanin colouration, short to medium internode length, short vegetative bud, flowering begins mid-season, fruit ripening begins mid-season
SPINE ON CURRENT SEASON'S CANE: medium density, small size base, medium length, brown
LEAF ON CURRENT SEASON'S CANE: medium to dark green on upper side, predominantly five leaflets
LEAFLET ON CURRENT SEASON'S CANE: straight in cross-section, medium to strong rugosity, lateral leaflets not touching

FLOWER: medium size

FRUITING LATERAL: semi-erect attitude
PEDUNCLE: very weak intensity of anthocyanin colouration
PEDICEL: medium number of spines
FRUIT: medium length, medium width, very small length to width ratio, medium conical shape in lateral view, single drupe is medium sized, medium red, medium glossiness, medium to firm, medium adherence to plug

Origin & Breeding History: 'DrisRaspSeven' arose from a controlled cross conducted in April 2004 between 'Cardinal' (female parent) and 'Maravilla' (male parent). Initial seedling of the new variety was asexually propagated in 2005 at a nursery in Santa Cruz, California. Selection criteria included self-fruitful plants, large and bright red berries. 'DrisRaspSeven' was subsequently asexually propagated and underwent further testing at a nursery in Ventura, California from 2005 to 2011.

Tests & Trials: The comparative trials for 'DrisRaspSeven' 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 with 5 plants per replicate for a total of 15 plants of each variety. Plants were spaced approximately 61 centimetres apart within rows and 3 metres between rows.


Comparison tables for 'DrisRaspSeven' with reference varieties 'Maravilla' and 'Heritage'

Length of previous season's cane (cm)

  'DrisRaspSeven' 'Maravilla' 'Heritage'
mean 180.36 202.68 189.98
std. deviation 4.82 15.59 19.26

Length of current season's cane (cm)

  'DrisRaspSeven' 'Maravilla' 'Heritage'
mean 181.00 195.90 207.10
std. deviation 6.39 26.80 8.98

Terminal leaflet length (cm)

  'DrisRaspSeven' 'Maravilla' 'Heritage'
mean 11.05 10.08 13.09
std. deviation 1.62 1.33 1.23

Click on image for larger view
DrisRaspSeven
Raspberry: 'DrisRaspSeven' (top left) with reference varieties 'Maravilla' (top right) and 'Heritage' (bottom)

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