Plant Variety Journal - IP Australia

Details of Application
Application Number 2007/155
Variety Name ‘Estrella’
Genus Species Rubus idaeus
Common Name Raspberry
Synonym Nil
Accepted Date 2 Jul 2007
Applicant Driscoll Strawberry Associates, Inc, Watsonville, CA, USA
Agent Phillips Ormonde & Fitzpatrick, Melbourne, VIC
Qualified Person Margaret Zorin
Details of Comparative Trial
Overseas Testing US Patent & Trademark Office (USPTO)
Authority
Overseas Data PP 19, 137 Granted 26 August 2008
Reference Number
Location Watsonville, California, United States of America and
verified Stanthorpe Queensland Australia 2008.
Descriptor Raspberry (Rubus idaeus) TG/43/7.
Period 1998-2005.
Conditions Traditional cultural practices employ rooted cuttings planted
into raised ridges of soil in winter, the plants are then trellised
and primocane harvest commences approximately 7 months
later in summer and autumn. At the end of the primocane
harvest the plants are pruned and the floricane harvest
commences in the following spring. Test plots for verification
were planted in late winter 2007 at Stanthorpe and verified in
2008.
Trial Design After asexual propagation by in vitro shoot tip culture was
used to produce root cuttings of ‘Estrella’ and ‘Heritage’
which were compared in plots side by side under standard
commercial raspberry production conditions.
Measurements Measurements were taken of plant, flower and fruit
characteristics approximately 7 months after planting for
primocane production and approximately 17 months after
planting for floricane production. All measurements were
made in accordance with UPOV technical guidelines and
colours are described and most similar colour designations are
provided from Royal Horticultural Society (RHS) Colour
Charts.
RHS Chart - edition 2001
Origin and Breeding
The new variety of raspberry ‘Estrella’ was developed from the hybridization of
‘Q481.7’ (an unpatented variety) as the seed parent and ‘S826.3’ (an unpatented
variety) as the pollen parent. In 1998 the parents were cross pollinated, and fruit and
seed were collected to produce seedlings for selection in field planting in Watsonville,
California USA. The variety ‘Estrella’ was selected for its yellow colour, productivity
and flavour in 2000. ‘Estrella’ has been maintained for at least 6 generations in its
present form by clonal reproduction without loss of distinctive characteristics.
Breeders: Rick Harrison, Fred Cook, Brian Hamilton and Gavin Sills all employees of
Driscoll Strawberry Associates, Inc. Watsonville, California, USA.
Page 401 of 550
Plant Varieties Journal Vol. 21 No.3