Denomination: 'Keisurfputem'
Botanical Name: Petunia ×hybrida
Applicant/Holder: Keisei Rose Nurseries Inc.
1-12-1 Oshiage
Breeder: Shunsuke Takeuchi, Keisei Rose Nurseries Inc., Tokyo, Japan
Agent in Canada: BioFlora Inc.
38723 Fingal Line
R.R. #1
St. Thomas, Ontario
N5P 3S5
Tel: 519-631-6241
Application Date: 2013-01-23
Application Number: 13-7858
Date Withdrawn: 2015-10-13

Variety Description

Variety used for comparison: 'Sunripami' (Surfinia Baby Purple)

Summary: The plants of 'Keisurfputem' have shorter shoots than the plants of 'Sunripami'. The leaf blade of 'Keisurfputem' is narrower than the leaf blade of 'Sunripami'. The shape of the leaf blade apex of 'Keisurfputem' is narrow acute whereas it is broad acute for 'Sunripami'. The sepal of 'Keisurfputem' is longer than the sepal of 'Sunripami'. The corolla of 'Keisurfputem' is narrower than the corolla of 'Sunripami'


PLANT: spreading growth habit

LEAF BLADE: ovate and elliptic, narrow acute apex, no variegation, medium green on upper side, absent or weak blistering

PEDICEL: weak to medium intensity of anthocyanin colouration
FLOWER: single type, funnelform
COROLLA: strong degree of lobing, absent or very shallow incisions of margin, medium to strong undulation of margin, inner side is purple (darker than RHS N74A, as dark as RHS 71A) when newly open, inner side is purple (closest to RHS N74A) when fully open, inner side is purple (RHS N74A) when aged, weak to medium conspicuousness of purple veins on inner side
COROLLA LOBE: cuspidate apex
COROLLA TUBE: inner side is violet (closest to RHS 77B-C), strong conspicuousness of veins on inner side, outer side is dark violet (closest to RHS 79D)
ANTHER: light blue before dehiscence

Origin & Breeding History: 'Keisurfputem' originated from a hybrid cross conducted in September 2005 by the breeder, Shunsuke Takeuchi, as part of a planned breeding program, in Katori, Chiba, Japan. It was the result of a cross between proprietary breeding lines '06L-115' as the female parent and '99L-16' as the male parent. A single plant was selected from the resultant progeny in March 2006 based on its plant growth habit, plant vigour, branching characteristics, long flowering period, flower colour and abundance, and good garden performance. Asexual reproduction of 'Keisurfputem' by cuttings was first conducted in March 2006.

Tests & Trials: The comparative trial for 'Keisurfputem' was conducted in a polyhouse during the summer of 2014 at BioFlora Inc. in St. Thomas, Ontario. The trial included a total of 20 plants each of the candidate and reference variety. All plants were grown from rooted cuttings and transplanted into 15 cm pots on June 18, 2014. Observations and measurements were taken from 10 plants or parts of plants of each variety on July 7, 2014. All colour determinations were made using the 2007 Royal Horticultural Society (RHS) Colour Chart.

Comparison tables for 'Keisurfputem' with reference variety 'Sunripami'

Shoot length (cm)

  'Keisurfputem' 'Sunripami'
mean 17.6 29.0
std. deviation 2.03 2.14

Leaf blade width (cm)

  'Keisurfputem' 'Sunripami'
mean 2.3 3.2
std. deviation 0.24 0.34

Sepal length (cm)

  'Keisurfputem' 'Sunripami'
mean 1.6 1.3
std. deviation 0.12 0.13

Flower width (cm)

  'Keisurfputem' 'Sunripami'
mean 5.2 5.6
std. deviation 0.18 0.18

Colour of inner side of corolla (RHS)

  'Keisurfputem' 'Sunripami'
newly open darker than N74A (as dark as 71A) darker than N74A (as dark as 71A)
fully open closest to N74A pinker than N74A
aged N74A N74A-B

Colour of corolla tube(RHS)

  'Keisurfputem' 'Sunripami'
inner side 77B-C N81C
outer side closest to 79D duller than 77A

Click on image for larger view
Petunia: 'Keisurfputem' (left) with reference variety 'Sunripami' (right)

Click on image for larger view
Petunia: 'Keisurfputem' (left) with reference variety 'Sunripami' (right)

Click on image for larger view
Petunia: 'Keisurfputem' (left) with reference variety 'Sunripami' (right)

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