Kakegawa S88

Petunia × Calibrachoa

Denomination: 'Kakegawa S88'
Trade name: SuperCal Velvet
Botanical Name: Petunia x Calibrachoa
Applicant/Holder: Sakata Seed Corporation
2-7-1 Nakamachidai
Breeder: Akinobu Ui, Sakata Seed Corporation, Shizuoka, Japan
Agent in Canada: BioFlora Inc.
38723 Fingal Line
R.R. #1
St. Thomas, Ontario
N5P 3S5
Tel: 519-631-6241
Application Date: 2007-03-01
Application Number: 07-5779
Grant of Rights Date: 2008-08-29
Certificate Number: 3310
Date rights surrendered: 2017-08-29

Variety Description

Variety used for comparison: 'Dancalipet' (Calitunia Purple)

Summary: 'Kakegawa S88' has shorter plants with shorter leaves and shorter petioles than 'Dancalipet'. The flowers of 'Kakegawa S88' are funnelform while those of 'Dancalipet' are salverform. The upper side of the corolla of 'Kakegawa S88' is purple darkening to dark purple red in the area of transition to the corolla tube whereas for 'Dancalipet', it is bright purple pink with purple red tones in the area of transition to corolla tube. The inner side of the corolla tube for 'Kakegawa S88' is blue pink and yellow orange with black veins while it is light and medium yellow for 'Dancalipet'.


PLANT: semi-upright growth habit
SHOOT: medium thick on lower third, strong anthocyanin colouration at base

LEAF: narrow elliptic, narrow acute apex, no variegation, dark green on upper side, no blistering

SEPAL: ranging from lanceolate to rhombic, no anthocyanin colouration
FLOWER: single type, funnelform
COROLLA: medium degree of lobing, one coloured
COROLLA LOBE: cuspidate and/or emarginate apex, medium undulation of margin, upper side is purple at margin darkening to dark purple red at area of transition to corolla tube, moderately to strongly conspicuous purple black veins on upper side, purple to blue pink on lower side
COROLLA TUBE: blue pink and yellow orange on inner side, moderately to strongly conspicuous black veins on inner side
ANTHER: yellowish white before pollen dehiscence, yellow after pollen dehiscence

Origin & Breeding History: 'Kakegawa S88' was developed by the breeder, Akinobu Ui, an employee of Sakata Seed Corporation, Japan. It originated from a hybridization between a proprietary hybrid Calibrachoa line and a proprietary hybrid Petunia line made in May 2003 in Kakegawa, Japan. In December 2003, 15 intergeneric hybrid plantlets were transplanted to soil-less media for greenhouse culture and acclimatization. In March 2004, 12 of the 15 plantlets were vegetatively propagated to produce rooted cuttings. In April 2004, these were transplanted to an open field and evaluated until July 2004 for flower colour and plant growth habit. 'Kakegawa S88' was selected in August 2004 based on its bright burgundy flowers and mounding plant growth habit. Ten (10) cuttings of 'Kakegawa S88' were further evaluated in open field trials from September to November 2004. These trials were used to confirm that the distinctive characteristics of 'Kakegawa S88' are fixed and stable.

Tests & Trials: Trials for 'Kakegawa S88' were conducted in a poly-house during the summer of 2007 at BioFlora Inc. in St. Thomas, Ontario. The trial included a total of fifteen (15) plants per variety. All plants were grown from rooted cuttings and transplanted into 11.5 cm pots on July 10, 2007. Observations and measurements were taken from ten (10) plants or parts of plants on August 30, 2007. All colour determinations were made using the 2001 Royal Horticultural Society (RHS) Colour Chart.

Comparison tables for 'Kakegawa S88' with reference variety 'Dancalipet'

Plant height (cm)

  'Kakegawa S88' 'Dancalipet'
mean 15.2 20.4
std. deviation 1.40 2.16

Leaf length (including petiole) (cm)

  'Kakegawa S88' 'Dancalipet'
mean 3.5 4.2
std. deviation 0.10 0.25

Petiole length (mm)

  'Kakegawa S88' 'Dancalipet'
mean 1.8 3.7
std. deviation 0.63 0.67

Colour of corolla (RHS)

  'Kakegawa S88' 'Dancalipet'
upper side 71B with N74A tones and darkening to 59A at area of transition to corolla tube N74A with tones of N66A and darker than N66A at area of transition to corolla tube
upper side - veins N186A 187A
lower side 71C-D 75A with 64C around margins and along mid-veins

Colour of corolla tube (RHS)

  'Kakegawa S88' 'Dancalipet'
inner side 186D with 13A at base; N186A veins 9A and 10B

Click on image for larger view
Kakegawa S88
Petunia × Calibrachoa: 'Kakegawa S88' (left) with reference variety 'Dancalipet' (right)

Click on image for larger view
Kakegawa S88
Petunia × Calibrachoa: 'Kakegawa S88' (left) with reference variety 'Dancalipet' (right)

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