Kakegawa S91

Petunia × Calibrachoa

Denomination: 'Kakegawa S91'
Trade name: SuperCal Terracotta
Botanical Name: Petunia x Calibrachoa
Applicant/Holder: Sakata Seed Corporation
2-7-1 Nakamachidai
Tsuzuki-Ku
Yokohama
224-0041
Japan
Breeder: Akinobu Ui, Sakata Seed Corporation, Shizuoka, Japan
Agent in Canada: BioFlora Inc.
38723 Fingal Line
R.R. #1
St. Thomas, Ontario
N5P 3S5
Canada
Tel: 519-631-6241
Application Date: 2007-03-01
Application Number: 07-5782
Grant of Rights Date: 2008-08-29
Certificate Number: 3313
Grant of Rights Termination Date: 2026-08-29

Variety Description

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

Summary: The shoots of 'Kakegawa S91' have absent or very weak anthocyanin colouration while those of 'Dancalipet' have strong anthocyanin at the base of the shoots only. 'Kakegawa S91' has shorter leaves than 'Dancalipet'. The flowers of 'Kakegawa S91' are funnelform and more than three coloured while those of 'Dancalipet' are salverform and only one coloured. The apex of the corolla lobe is retuse (shallow emarginate) for 'Kakegawa S91' while it is rounded to cuspidate for 'Dancalipet'. The upper side of the corolla of 'Kakegawa S91' is orange with randomly distributed light yellow orange areas and purple red around the margins and along the corolla lobe mid-veins whereas for 'Dancalipet', it is bright purple with purple red tones which are darker at the area of transition to the corolla tube. 'Kakegawa S91' has yellow secondary colour at the area of transition to the corolla tube while 'Dancalipet' has no secondary colour. The veins on the upper side of the corolla are green and weakly conspicuous for 'Kakegawa' S91' while they are purple black and strongly conspicuous for 'Dancalipet'.

Description:

PLANT: semi-upright growth habit
SHOOT: thin on lower third, absent or very weak anthocyanin colouration

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

SEPAL: linear, anthocyanin colouration present
FLOWER: single type, funnelform
COROLLA: medium degree of lobing, more than two coloured (blended colouration)
COROLLA LOBE: retuse (shallow emarginate) apex, medium undulation of margin, upper side is orange with randomly distributed light yellow orange areas and purple red around margin area and along mid-vein, yellow at area of transition to corolla tube on upper side, weakly conspicuous green veins on upper side, lower side is light yellow with blue pink around margin area and along mid-vein
COROLLA TUBE: srongly conspicuous yellow with dark brown veins on inner side, yellow green on outer side
ANTHER: light yellow before pollen dehiscence, yellow after pollen dehiscence

Origin & Breeding History: 'Kakegawa S91' 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, 6 intergeneric hybrid plantlets were transplanted to soil-less media for greenhouse culture and acclimatization. In March 2004, these plantlets were vegetatively propagated to produce rooted cuttings and in April 2004, they were transplanted to an open field and evaluated until July 2004 for flower colour and plant growth habit. 'Kakegawa S91' was selected in August 2004 based on its bright "terracotta" flowers (apricot with pinkish-red veins) and mounding plant growth habit. Ten (10) cuttings of 'Kakegawa S91' were further evaluated in open field trials from September to November 2004. These trials were used to confirm that the distinctive characteristics of 'Kakegawa S91' are fixed and stable.

Tests & Trials: Trials for 'Kakegawa S91' 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 S91' with reference variety 'Dancalipet'

Leaf length (cm)

  'Kakegawa S91' 'Dancalipet'
mean 3.2 4.2
std. deviation 0.18 0.25

Colour of corolla (RHS)

  'Kakegawa S91' 'Dancalipet'
upper side 24C with areas of 20D; 54B around margin and along corolla lobe mid-veins N74A with N66A tones which become darker at area of transition to corolla tube
upper side - veins green 187A
lower side 8D with 70C around margin and along corolla lobe mid-veins 75A with 64C around margin and along corolla lobe mid-veins

Secondary colour of corolla (RHS)

  'Kakegawa S91' 'Dancalipet'
upper side 9A N/A

Colour of corolla tube (RHS)

  'Kakegawa S91' 'Dancalipet'
inner side 12A with 200A veins 9A and 10B

Click on image for larger view
Kakegawa S91
Petunia × Calibrachoa: 'Kakegawa S91' (left) with reference variety 'Dancalipet' (right)

Click on image for larger view
Kakegawa S91
Petunia × Calibrachoa: 'Kakegawa S91' (left) with reference variety 'Dancalipet' (right)

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