Denomination: 'USTUNI207'
Trade name: Supertunia Mini Rose Veined
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: 2002-10-08
Application Number: 02-3321
Grant of Rights Date: 2004-09-16
Certificate Number: 1935
Date rights surrendered: 2014-09-16

Variety Description

Variety used for comparison: 'Sunrove' (Surfinia Pink Veined)

Summary: 'USTUNI207' has a smaller corolla diameter and shorter pedicel than 'Sunrove'. 'USTUNI207' has a darker pink corolla colour than 'Sunrove'. The veins on the inner side of the corolla lobe in 'USTUNI207' are a darker purple than in 'Sunrove'. 'USTUNI207' has a longer corolla tube than 'Sunrove'. The veins on the outer side of the corolla tube of 'USTUNI207' are violet in colour while they are light green in 'Sunrove'.


'USTUNI207' is a petunia variety with a creeping growth habit. The shoots are medium to long in length with no anthocyanin present. The leaves are medium green, ovate to obovate in shape with a broadly acute to obtuse apex. There is no variegation on the leaf blade. The sepals are linear in shape with no anthocyanin present. 'USTUNI207' produces single, funnelform, pink flowers. The corolla has weak lobing with medium to strong undulation of the margin and strong conspicuousness of the red/purple veins. The corolla lobe apex can be truncate, acute or cuspidate. The inside of the corolla tube is purple and has veins of strong to very strong conspicuousness. Anther colour is a light blue.

Origin & Breeding History: 'USTUNI207' is the product of a planned breeding program conducted by the breeder, Ushio Sakazaki of Hikone Shiga, Japan. The objectives of the program was to create new trailing petunia varieties with unique flowers, and greater disease resistance and heat tolerance. 'USTUNI207' originated from a cross made by the breeder on May 6, 1998 in Shiga, Japan, with the seed raised petunia variety 'Fantasy Blue' as the female parent, and a unidentified petunia as the male parent. The F1 seed was collected and sent to Gensingen, Germany for further breeding and selection. 'USTUNI207' was selected as a single plant from the resulting progeny on June 15, 1999 in Germany. The new petunia was selected based on good branching characteristics and trailing habit.

Tests & Trials: Tests and trials for 'USTUNI207' were conducted in a polyhouse at BioFlora Inc., St. Thomas, Ontario during the summer of 2003. The trials included 15 plants of each variety. Rooted cuttings were transplanted into 15cm pots on April 25, 2003 (week 17). All colour measurements were made using RHS colour chart 2001. Unless otherwise indicated measured characteristics were based on ten measurements.

Comparison tables for 'USTUNI207' with reference variety 'Sunrove'

Pedicel length (mm)

  'USTUNI207' 'Sunrove'
mean 37.1 46.5
std. deviation 8.157 15.789

Diameter of corolla (mm)

  'USTUNI207' 'Sunrove'
mean 29.2 57.6
std. deviation 2.150 3.373

Colour of corolla lobe (RHS)

  'USTUNI207' 'Sunrove'
inner side N74B-C, veins 72A N155B with tones of N74C-D, veins 67A
outer side 77C N74D with 76D close to mid veins and at base

Corolla tube length (mm)

  'USTUNI207' 'Sunrove'
mean 54.4 29.1
std. deviation 3.273 1.595
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