Denomination: 'Kerpril'
Trade name: Priscilla
Botanical Name: Petunia ×hybrida
Applicant/Holder: Kerley, David William
49 Station Road Bethany, Over
CB24 5NJ
United Kingdom
Tel: 44 1954 230 995

Kerley, Priscilla Grace
49 Station Road Bethany, Over
CB24 5NJ
United Kingdom
Breeder: David William Kerley, Cambridge, United Kingdom
Priscilla Grace Kerley, Cambridge, United Kingdom
Agent in Canada: Norseco Inc.
2914, boulevard Curé-Labelle
Laval, Quebec
H7P 5R9
Tel: 514-332-2275
Application Date: 1999-04-23
Application Number: 99-1639
Grant of Rights Date: 2000-08-14
Certificate Number: 0788
Date rights surrendered: 2012-08-09

Variety Description

Variety used for comparison: 'Doubloon Blue Star'

Summary: 'Kerpril' is a violet coloured, double petunia variety with a semi-pendulous growth habit. It can be distinguished from the reference variety 'Doubloon Blue Star' by its stronger, thicker stems and its more horizontal initial growth. The foliage of 'Kerpril' is more dense than 'Doubloon Blue Star', although the leaves are smaller. 'Kerpril' flowers earlier than 'Doubloon Blue Star' and produces larger flowers.


'Kerpril' is a petunia variety with semi-pendulous growth habit and abundant branching. The stems are thick, with no anthocyanin colouration, moderate pubescence and the foliage is dense. The leaves of 'Kerpril' are dark green and elliptic to broad elliptic in shape, with a broadly acute apex and no rugosity. The margins of the leaves are entire, with no undulation. The upper and lower leaf surfaces and the margins are moderately pubescent. The leaves of 'Kerpril' are slightly angled towards the apex of the stem. 'Kerpril' has a linear shaped sepal with an acute apex, moderate pubescence and no anthocyanin colouration.

'Kerpril' flowers mid-season and produces violet coloured, double flowers along the full length of the stems. The overall flower shape is salverform, and the petal apex is acuminate. The peduncle has dense, bristly pubescence. The inner and outer side of the corolla is violet, and the inner and outer side of the throat is dark violet. The veins on the outer side of the throat are green-violet. The throat veins on the inner side are prominent.

Origin & Breeding History: 'Kerpril' originated in Cambridge, United Kingdom, from a cross between the variety 'Surfinia Blue Vein' and a seedling known as 'B'. The original cross was made in 1995. 'Kerpril' was selected in the F1 generation. The selection criteria were double flowers, early and free flowering, the pendant habit and free-branching.

Tests & Trials: Tests and trials for 'Kerpril' were conducted at Norseco, Inc., Laval, Quebec during the summer of 1999. The trials consisted of 25 cm hanging baskets, with 3 plants per basket. The plants were grown in a greenhouse, and had been planted from cuttings in February 1999. Measured characteristics were based on a minimum of 10 measurements.

Comparison tables for 'Kerpril' with reference variety 'Doubloon Blue Star'

Leaf length (cm) (excluding petiole)

  'Kerpril' 'Doubloon Blue Star'
mean 3.9 4.6
range 3.3 - 4.3 4.1 - 5.0

Leaf width (cm)

  'Kerpril' 'Doubloon Blue Star'
mean 2.9 3.5
range 2.4 - 3.5 3.0 - 3.9

Length of sepal (cm)

  'Kerpril' 'Doubloon Blue Star'
mean 1.4 1.95
range 1.2 - 1.5 1.5 - 2.0

Length of corolla (cm)

  'Kerpril' 'Doubloon Blue Star'
mean 5.3 4.4
range 4.7 - 5.7 3.8 - 4.6

Diameter of corolla (cm)

  'Kerpril' 'Doubloon Blue Star'
mean 5.9 4.5
range 5.3 - 6.5 4.0 - 5.5

Colour of inner side of corolla (RHS)

  'Kerpril' 'Doubloon Blue Star'
margin 88D 84B
middle 87A (81A when newly opened) 84B
throat 83A & 86A 83A (with 144C between veins)

Colour of outer side of corolla (RHS)

  'Kerpril' 'Doubloon Blue Star'
middle 85A-B & 76A 85D
throat 83A 83A (with 142B between veins)
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