USTUN75102

Petunia

Denomination: 'USTUN75102'
Trade name: Supertunia Picasso in Blue
Botanical Name: Petunia ×hybrida
Applicant/Holder: Plant 21 LLC
32149 Aquaduct Road
Bonsall, California
92003
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
Canada
Tel: 519-631-6241
Application Date: 2015-03-26
Application Number: 15-8551
Grant of Rights Date: 2017-06-30
Certificate Number: 5515
Grant of Rights Termination Date: 2037-06-30

Variety Description

Varieties used for comparison: 'USTUN48002' (Picasso in Pink) and 'Kumiyama 1 gou' (Moonlight Eclipse)

Summary: The plants of 'USTUN75102' have a spreading growth habit while those of 'Kumiyama 1 gou' are upright. The plants of 'USTUN75102' are shorter than those of both reference varieties. The plants of 'USTUN75102' are narrower than those of 'USTUN48002' and wider than those of 'Kumiyama 1 gou'. The leaves of 'USTUN75102' are larger than those of both reference varieties. The pedicels of 'USTUN75102' are longer than those of 'USTUN48002'. The flower of 'USTUN75102' is wider than that of 'Kumiyama 1 gou'. The veins on the inner side of the corolla of 'USTUN75102' have medium conspicuousness while those on 'USTUN48002' are weak and those on 'Kumiyama 1 gou' are absent or very weak. The inner side of the corolla of 'USTUN75102' is dark violet whereas that of 'USTUN48002' is blue pink and that of 'Kumiyama 1 gou' is blue violet. The inner side of the corolla tube of 'USTUN75102' is violet with dark violet veins whereas that of 'USTUN48002' is blue pink with dark green veins.

Description:

PLANT: spreading growth habit
SHOOT: medium thickness in lower third

LEAF BLADE: ovate shape, broad acute apex, no variegation, medium green on upper side, absent or weak blistering

PEDICEL: absent or very weak intensity of anthocyanin colouration
FLOWER: single type, campanulate shape
COROLLA: medium to strong degree of lobing, absent or very shallow incisions of margin, medium to strong undulation, medium conspicuousness of veins, dark violet (RHS N79A) veins, when newly open inner side is dark violet (RHS 79B-C) with dark green to light green at margin of corolla, when fully open inner side is dark violet (RHS 79B-C) with small to medium sized dark green to light green (RHS 144A-B) area at margin of corolla, when aged inner side is violet (RHS N80B-C) with dark violet (RHS 144A-B) at margin of corolla
COROLLA LOBE: cuspidate apex
COROLLA TUBE (INNER SIDE): violet (RHS 77A), medium conspicuousness of dark violet (RHS N79A) veins
ANTHER: violet before dehiscence

Origin & Breeding History: 'USTUN75102' originated from a controlled cross conducted by the breeder, Ushio Sakazaki, in Higashiomi, Shiga, Japan on May 17, 2012. The cross was made between the female parent, a proprietary seedling designated '11PJ54', and the male parent, a proprietary seeding designated '11PJ53'. The new plant was selected from the resulting progeny on May 31, 2013, in Bonsall, California, USA. 'USTUN75102' was selected based on its flower colour and flower pattern. This variety was first propagated by vegetative tip cuttings on June 3, 2013 in Bonsall, California, USA.

Tests & Trials: The comparative trial for 'USTUN75102' was conducted in a polyhouse during the spring of 2016 at BioFlora Inc. in St. Thomas, Ontario. The trial included a total of 20 plants each of the candidate and reference varieties. All plants were grown from rooted cuttings and transplanted into 15 cm pots on April 17, 2016. Observations and measurements were taken from 10 plants or parts of plants of each variety on May 18, 2016. All colour determinations were made using the 2007 Royal Horticultural Society (RHS) Colour Chart.


Comparison tables for 'USTUN75102' with reference varieties 'USTUN48002' and 'Kumiyama 1 gou'

Plant height (cm)

  'USTUN75102' 'USTUN48002' 'Kumiyama 1 gou'
mean 14.5 20.7 17.3
std. deviation 1.49 1.63 0.80

Plant width (cm)

  'USTUN75102' 'USTUN48002' 'Kumiyama 1 gou'
mean 32.7 46.5 16.8
std. deviation 2.01 3.66 0.71

Leaf length (cm)

  'USTUN75102' 'USTUN48002' 'Kumiyama 1 gou'
mean 5.8 4.9 4.2
std. deviation 0.25 0.15 0.19

Leaf blade width (cm)

  'USTUN75102' 'USTUN48002' 'Kumiyama 1 gou'
mean 3.2 2.8 2.7
std. deviation 0.17 0.10 0.16

Pedicel length (cm)

  'USTUN75102' 'USTUN48002' 'Kumiyama 1 gou'
mean 4.9 2.6 3.1
std. deviation 0.77 0.49 0.70

Flower width (cm)

  'USTUN75102' 'USTUN48002' 'Kumiyama 1 gou'
mean 4.6 4.6 3.8
std. deviation 0.24 0.18 0.11

Colour of fully open corolla (RHS)

  'USTUN75102' 'USTUN48002' 'Kumiyama 1 gou'
inner side 79B-C 67B N87A

Colour of corolla tube (RHS)

  'USTUN75102' 'USTUN48002' 'Kumiyama 1 gou'
inner side 77A with N79A veins 67C-D with 143B-C veins 77A with N77A veins

Click on image for larger view
USTUN75102
Petunia: 'USTUN75102' (left) with reference varieties 'USTUN48002' (centre) and 'Kumiyama 1 gou' (right)

Click on image for larger view
USTUN75102
Petunia: 'USTUN75102' (left) with reference varieties 'USTUN48002' (centre) and 'Kumiyama 1 gou' (right)

Click on image for larger view
USTUN75102
Petunia: 'USTUN75102' (left) with reference varieties 'USTUN48002' (centre) and 'Kumiyama 1 gou' (right)

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