Denomination: 'Petrosena'
Previously Proposed Denomination: 'Petrose'
Trade name: Sanguna Lipstick
Botanical Name: Petunia ×hybrida
Applicant/Holder: Syngenta Crop Protection AG
Schwarzwaldallee 215
Breeder: E. Barends, Syngenta Seeds B.V., Enkhuizen, Netherlands
Agent in Canada: BioFlora Inc.
38723 Fingal Line
R.R. #1
St. Thomas, Ontario
N5P 3S5
Tel: 519-631-6241
Application Date: 2005-05-13
Application Number: 05-4894
Grant of Rights Date: 2007-11-28
Certificate Number: 3044
Date rights surrendered: 2008-12-18

Variety Description

Varieties used for comparison: 'Sunrovein' (Surfinia Rose Veined) and 'USTUNI8902' (Supertunia Vista Fuchsia)

Summary: 'Petrosena' has a more upright growth habit than the reference varieties. 'Petrosena' has a shorter sepal length and narrower sepal width than 'Sunrovein'. 'Petrosena' has a smaller flower diameter than 'Sunrovein' and a larger flower diameter than 'USTUNI8902'. 'Petrosena' has less conspicuous veins on the upper surface of the corolla than 'Sunrovein'. 'Petrosena' has more conspicuous veins on the inner side of the corolla tube than 'USTUNI8902'. 'Petrosena' has yellowish white anther colour before pollen dehiscence while 'USTUNI8902' has light purple anther colour.


PLANT: upright growth habit, short to medium height, narrow to medium

SHOOTS: thin to medium thickness, short to medium length, absent to very weak anthocyanin colouration

LEAVES: short to medium length, narrow to medium width, ovate to elliptic, narrow acute apex, no variegation, medium to strong green on upper side, no blistering, short to medium length petiole

SEPALS: medium length, narrow to medium width, linear, no anthocyanin colouration

FLOWERS: medium to long pedicel, single corolla, medium diameter, trumpet shape
COROLLA: moderate lobing, purple red with blue pink at margin on upper side, blue pink on lower side, veins purple red and weakly conspicuous, margin with medium undulation
COROLLA TUBE: short to medium length, purple on inner side, veins strongly conspicuous
ANTHERS: yellowish white before and after pollen dehiscence.

Origin & Breeding History: 'Petrosena' originated from a controlled cross made in 2000 in Enkhuizen, The Netherlands, between the female parent, 'A998-1' and the male parent 'Y942-4'. A plant was selected from the resultant progeny of the cross in 2001, based on flower characteristics and plant habit. Asexual reproduction by vegetative cuttings was first conducted in August, 2001 in Enkhuizen, The Netherlands.

Tests & Trials: The tests and trials for 'Petrosena' were conducted in a polyhouse at BioFlora in St. Thomas, Ontario in the spring of 2006. The trials included 15 plants of each variety. Rooted cuttings were transplanted into six inch pots on April 17, 2006. Observations and measurements were taken from 10 plants of each variety. All colour measurements were made using the 2001 Royal Horticultural Society Colour Chart.

Comparison tables for 'Petrosena' with reference varieties 'Sunrovein' and 'USTUNI8902'

Sepal length (mm)

  'Petrosena' 'Sunrovein' 'USTUNI8902'
mean 16.7 22.1 15.3
std. deviation 1.25 3.38 1.34

Sepal width (mm)

  'Petrosena' 'Sunrovein' 'USTUNI8902'
mean 3.7 7.3 2.6
std. deviation 0.67 2.06 0.70

Flower diameter (cm)

  'Petrosena' 'Sunrovein' 'USTUNI8902'
mean 5.7 6.9 4.6
std. deviation 0.32 0.59 0.14

Colour of corolla (RHS)

  'Petrosena' 'Sunrovein' 'USTUNI8902'
upper side N66B, 67C at margin 71D N66B
lower side N66C N66C N66C-D

Colour of corolla tube (RHS)

  'Petrosena' 'Sunrovein' 'USTUNI8902'
inner side 71A 76B-C N66C

Click on image for larger view
Petunia: 'Petrosena' (left) with reference varieties 'Sunrovein' (centre) and 'USTUNI8902' (right)

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