Kakegawa S82

Calibrachoa

Denomination: 'Kakegawa S82'
Trade name: Colorburst Trailing Electric Red
Botanical Name: Calibrachoa
Applicant/Holder: Sakata Seed Corporation
2-7-1 Nakamachidai
Tsuzuki-Ku
Yokohama
224-0041
Japan
Breeder: Sakata Seed Corporation, Yokohama, Japan
Agent in Canada: Variety Rights Management
475 County Road 18
R.R. #2
Oxford Station, Ontario
K0G 1T0
Canada
Tel: 613-258-9015
Application Date: 2004-03-18
Application Number: 04-4123
Grant of Rights Date: 2007-01-24
Certificate Number: 2681
Date rights surrendered: 2009-03-06

Variety Description

Variety used for comparison: 'Kakegawa S69' (Colorburst Melon)

Summary: 'Kakegawa S82' has lighter green leaves and narrower sepals than 'Kakegawa S69'. The inner side of the corolla for 'Kakegawa S82' is red while for 'KakegawaS69', it is orange pink with red secondary colour in the area of transition to the corolla tube and along the midribs of the corolla lobes. The outer side of the corolla is dark pink red for 'Kakegawa S82' while it is orange pink to light red pink for 'Kakegawa S69'.

Description:

'Kakegawa S82' is a Calibrachoa variety with upright to creeping plant growth habit. The plants are short and the shoots are medium in length with absent to very weak anthocyanin colouration. The shape of the leaf blade ranges from elliptic to obovate with an obtuse apex. The upper side of the leaf blade is medium green and there is no variegation. There is no petiole.

The flowers produced by 'Kakegawa S82' are single type. Anthocyanin colouration of the sepals is absent. The degree of lobing of the corolla is moderate. The inner side of the corolla is red and the outer side is dark pink red. The lobes of the corolla have a truncate shaped apex. The inner side of the corolla tube is yellow and conspicuousness of the veins within the corolla tube is strong.

Origin & Breeding History: 'Kakegawa S82' originated from a hybridization conducted in May of 1999 in Kakegawa, Japan. The female parent was an unnamed breeding line with deep rose coloured flowers, creeping plant growth habit and erect center stem designated 'R-9' and the male parent was variety 'Kakegawa S24' (Liricashower Pure White). From August of 1999 to August of 2003, three selections and crosses were conducted to produce F3 seed. The selection criteria at each generation was the creeping plant growth habit. From the F3 generation, one seedling was selected for vegetative propagation based on its scarlet rose coloured flowers and creeping plant growth habit with semi-erect center stem. In August of 2001, this selection was planted in 9 cm hanging pots for evaluation in greenhouse and open field trials. The selection was subsequently named 'Kakegawa S82'.

Tests & Trials: The test and trial for 'Kakegawa S82' was conducted in a polyhouse at Variety Rights Management in Oxford Station, Ontario during the summer of 2005. The trial included 15 plants of each variety grown in 10 cm pots. The plants were spaced 13 cm apart. All colour characteristics were determined using the 2001 Royal Horticultural Society (RHS) colour chart and measured characteristics were based on ten measurements.


Comparison tables for 'Kakegawa S82' with reference variety 'Kakegawa S69'

Sepal width (mm)

  'Kakegawa S82' 'Kakegawa S69'
mean 10.60 14.40
std. deviation 1.65 4.20

Colour of corolla (RHS)

  'Kakegawa S82' 'Kakegawa S69'
primary - inner side 45A 37A
secondary - inner side N/A 42B
outer side 47C 37B/C

Colour of corolla tube (RHS)

  'Kakegawa S82' 'Kakegawa S69'
inner side 6B 6B

Click on image for larger view
Kakegawa S82
Calibrachoa: 'Kakegawa S82' (left) with reference variety 'Kakegawa S69' (right)

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