Denomination: 'USTUN48002'
Trade name: Supertunia Picasso in Pink
Botanical Name: Petunia ×hybrida
Applicant/Holder: Plant 21 LLC
32149 Aquaduct Road
Bonsall, California
United States of America
Breeder: Ushio Sakazaki, Shiga, Japan
Agent in Canada: BioFlora Inc.
38723 Fingal Line
R.R. #1
St. Thomas, Ontario
N5P 3S5
Tel: 519-631-6241
Application Date: 2012-03-09
Application Number: 12-7549
Grant of Rights Date: 2014-05-23
Certificate Number: 4783
Grant of Rights Termination Date: 2032-05-23

Variety Description

Variety used for comparison: 'Balpelite' (Lime Light)

Summary: The plants of 'USTUN48002' are taller than those of 'Balpelite'. The shoots and pedicels of 'USTUN48002' are longer than those of 'Balpelite'. The corolla tube of 'USTUN48002' is shorter than that of 'Balpelite'. The inner side of the corolla tubes of 'USTUN48002' are blue pink with medium conspicuousness of blue pink veins and no petaloids whereas those of 'Balpelite' are white with strong conspicuousness of dark violet veins and petaloids present.


PLANT: upright growth habit, medium shoot thickness on lower third

LEAF BLADE: ovate and elliptic, narrow to broad acute apex, no variegation, medium green on upper side, blistering present

SEPAL: spatulate, no anthocyanin colouration
FLOWER: single, funnelform, green veins
COROLLA LOBE: two colours on upper side, upper side blue pink (RHS 73A, 71D) with dark green (RHS 143A-C) at margin, weak to medium conspicuousness of veins on upper side, medium undulation of margin
COROLLA TUBE: inner side blue pink (RHS N74D) with blue pink (RHS 67C) veins, medium conspicuousness of veins on inner side
ANTHERS: white before dehiscence

Origin & Breeding History: 'USTUN48002' originated from a controlled cross conducted by the breeder between the female parent '08P359-01', a proprietary seedling, and the male parent '09PJ25-5GE'. The cross was conducted in Higashiomi-shi, Shiga, Japan on May 8, 2009. The new variety was selected as a single plant from the resultant progeny on May 27, 2010 in Bonsall, California, USA based on flower colour pattern, flower colour uniformity and stability of the flower colour pattern. 'USTUN48002' was first propagated by vegetative tip cuttings on May 28, 2010 in Bonsall, California, USA.

Tests & Trials: Trials for 'USTUN48002' were conducted in a polyhouse during the spring of 2013 in St. Thomas, Ontario. The trial included a total of 20 plants each of the candidate and reference variety. All plants were grown from rooted cuttings and transplanted into 15 cm pots on April 10, 2013. Observations and measurements were taken from 10 plants of each variety on May 12, 2013. All colour determinations were made using the 2007 Royal Horticultural Society (RHS) Colour Chart.

Comparison tables for 'USTUN48002' with reference variety 'Balpelite'

Plant height (cm)

  'USTUN48002' 'Balpelite'
mean 16.5 12.5
std. deviation 0.46 0.39

Shoot length (cm)

  'USTUN48002' 'Balpelite'
mean 17.0 10.4
std. deviation 1.14 0.75

Pedicel length (cm)

  'USTUN48002' 'Balpelite'
mean 2.1 1.2
std. deviation 0.45 0.26

Corolla tube length (cm)

  'USTUN48002' 'Balpelite'
mean 2.4 2.9
std. deviation 0.07 0.13

Colour of corolla tube (RHS)

  'USTUN48002' 'Balpelite'
inner side N74D with 67C veins closest to N155D with 79A-B veins
petaloids N/A 143A with pink centre

Click on image for larger view
Petunia: 'USTUN48002' (left) with reference variety 'Balpelite' (right)

Click on image for larger view
Petunia: 'USTUN48002' (left) with reference variety 'Balpelite' (right)

Click on image for larger view
Petunia: 'USTUN48002' (left) with reference variety 'Balpelite' (right)

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