Denomination: 'MPD5'
Trade name: Double Tiny Tunia Cherry
Botanical Name: Petunia ×hybrida
Applicant/Holder: NuFlora International Pty. Ltd.
63 Wills Road
Macquarie Fields, New South Wales
Breeder: Graham Noel Brown, Baulkham Hills, Australia
Agent in Canada: Variety Rights Management
475 County Road 18
R.R. #2
Oxford Station, Ontario
K0G 1T0
Tel: 613-258-9015
Application Date: 2004-08-13
Application Number: 04-4320
Date abandoned: 2008-11-06

Variety Description

Variety used for comparison: 'Kirimaji Double Rose' (Double Wave Rose)

Summary: 'MPD5' is a petunia variety which has double flowers that are significantly smaller in diameter than the flowers of 'Kirimaji Double Rose'.The leaves of 'MPD5' are also shorter and narrower than the leaves of 'Kirimaji Double Rose'.


PLANT: spreading growth habit
SHOOT: medium thickness, short to medium length, no anthocyanin colouration

LEAF: elliptic to circular shape, broad acute apex, no variegation, medium green on upper side, blistering absent

SEPAL: linear to obovate shape, no anthocyanin
FLOWER: double, funnel form
COROLLA LOBE: one colour on upper side, purple red, strongly conspicuous red purple veins, very strong undulation of margin
COROLLA TUBE: purple red to blue pink on inner side, strongly conspicuous veins

Origin & Breeding History: 'MPD5' was developed from a Petunia × hybrida breeding program located at the University of Sydney Plant Breeding Institute Cobbitty (PBIC), in Cobbitty, New South Wales, Australia. This vegetative breeding program is aimed at producing compact but spreading, small flowered petunia varieties. The parents 'X01.167' (female) and 'PKC27' (male) were crossed in December 2001. These parents were crossbreeds from the proprietary program. The new variety was selected from the F1 seedling population in October 2002 and was tested for uniformity and stability in tissue culture propagation. The initial selection criteria were for flower colour and form, early flowering and habit.

Tests & Trials: Trials for 'MPD5' were conducted in a polyhouse at Oxford Station, Ontario during the summer of 2006. The trials consisted of 15 plants of each variety, planted in 15 cm pots and spaced at approximately 30 cm apart on the bench. Observations and measurements were taken from 10 plants of each variety. Colour determinations were done using the 2001 Royal Horticultural Society (RHS) Colour Chart.

Comparison tables for 'MPD5' with reference variety 'Kirimaji Double Rose'

Leaf blade length (cm)

  'MPD5' 'Kirimaji Double Rose'
mean 2.57 3.04
std. deviation 0.29 0.39

Leaf blade width (cm)

  'MPD5' 'Kirimaji Double Rose'
mean 1.11 1.65
std. deviation 0.18 0.29

Diameter of corolla (mm)

  'MPD5' 'Kirimaji Double Rose'
mean 32.71 47.86
std. deviation 3.45 5.15

Main colour of corolla lobe (RHS)

  'MPD5' 'Kirimaji Double Rose'
upper side N66B N66B-C

Main colour of corolla tube (RHS)

  'MPD5' 'Kirimaji Double Rose'
inner side N66B-C N66B-C

Click on image for larger view
Petunia: 'MPD5' (left) with reference variety 'Kirimaji Double Rose' (right)

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