Denomination: 'USTUNI60-01M'
Previously Proposed Denomination: 'USCALI60-01M'
Trade name: Supertunia Vista Silverberry
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: 2008-03-07
Application Number: 08-6213
Grant of Rights Date: 2010-06-01
Certificate Number: 3866
Grant of Rights Termination Date: 2028-06-01

Variety Description

Varieties used for comparison: 'Sunsurflala' (Surfinia Lavender Lace) and 'Sunsurfmomo' (Surfinia Light Pink)

Summary: The plants of 'USTUNI60-01M' have an upright growth habit while those of 'Sunsurfmomo' are creeping. 'USTUNI60-01M' is taller than both reference varieties. The leaves of 'USTUNI60-01M' are smaller than those of both reference varieties. 'USTUNI60-01M' has smaller flowers than both reference varieties. The upper side of the corolla lobes of 'USTUNI60-01M' are white while those of 'Sunsurflala' are light blue violet and those of 'Sunsurfmomo' are violet. 'USTUNI60-01M' is white on the inner side of the corolla tube while 'Sunsurflala' is violet. The anthers of 'USTUNI60-01M' are yellowish white before dehiscence while those of 'Sunsurflala' are violet.


PLANT: upright growth habit, thin to medium shoot thickness

LEAF: ovate, narrow acute apex, no variegation, light to medium green on upper side, no blistering

SEPAL: linear, anthocyanin colouration present
FLOWER: single type, funnelform, medium to strong degree of lobing, red/purple veins
COROLLA LOBE: one coloured on upper side, white on upper side, strong conspicuousness of veins on upper side, cuspidate apex, medium to strong undulation of margin
COROLLA TUBE: white (RHS N155B) on inner side, strong conspicuousness of veins on inner side, yellowish white anther before dehiscence

Origin & Breeding History: 'USTUNI60-01M' originated from a naturally occurring branch mutation of a 'USCALI6001' (Supertunia Vista Bubblegum) plant. The new variety was discovered and developed by the breeder Ushio Sakazaki at Four Star Greenhouse, in Michigan, United States on May 15, 2006. 'USTUNI60-01M' was selected based on flower colour. It was first propagated by vegetative cuttings on May 15, 2006 in Michigan, United States.

Tests & Trials: Trials for 'USTUNI60-01M' were conducted in a polyhouse during the spring of 2009 in St. Thomas, Ontario. The trial included a total of 15 plants each of the candidate and reference varieties. All plants were grown from rooted cuttings and transplanted into 15 cm pots on April 30, 2009. Observations and measurements were taken from 10 plants of each variety on May 27, 2009. All colour determinations were made using the 2001 Royal Horticultural Society (RHS) Colour Chart.

Comparison tables for 'USTUNI60-01M' with reference varieties 'Sunsurflala' and 'Sunsurfmomo'

Plant height (cm)

  'USTUNI60-01M' 'Sunsurflala' 'Sunsurfmomo'
mean 20.5 18.7 11.5
std. deviation 2.03 1.78 0.90

Leaf length (cm)

  'USTUNI60-01M' 'Sunsurflala' 'Sunsurfmomo'
mean 2.9 3.5 3.4
std. deviation 0.21 0.23 0.23

Leaf width (cm)

  'USTUNI60-01M' 'Sunsurflala' 'Sunsurfmomo'
mean 1.6 2.1 1.9
std. deviation 0.14 0.11 0.19

Flower diameter (cm)

  'USTUNI60-01M' 'Sunsurflala' 'Sunsurfmomo'
mean 5.1 5.7 5.7
std. deviation 0.27 0.27 0.25

Colour of corolla (RHS)

  'USTUNI60-01M' 'Sunsurflala' 'Sunsurfmomo'
upper side of lobe white 76C closest to 75C
inner side of tube N155B 77B 155C

Click on image for larger view
Petunia: 'USTUNI60-01M' (left) with reference varieties 'Sunsurflala' (center) and 'Sunsurfmomo' (right)

Click on image for larger view
Petunia: 'USTUNI60-01M' (left) with reference varieties 'Sunsurflala' (center) and 'Sunsurfmomo' (right)

Click on image for larger view
Petunia: 'USTUNI60-01M' (left) with reference varieties 'Sunsurflala' (center) and 'Sunsurfmomo' (right)

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