Kirifu-24

Calibrachoa

Denomination: 'Kirifu-24'
Trade name: Milky Way Blue Improved
Botanical Name: Calibrachoa
Applicant/Holder: Japan Agribio Company, Limited
1-5-11 Irifune, Chuo-ku
Tokyo
104-0042
Japan
Breeder: Saori Yamada, Kirin Agribio Company, Limited, Tokyo, Japan
Daigaku Takeshita, Kirin Agribio Company, Limited, Tokyo, Japan
Agent in Canada: BioFlora Inc.
38723 Fingal Line
R.R. #1
St. Thomas, Ontario
N5P 3S5
Canada
Tel: 519-631-6241
Application Date: 2006-11-23
Application Number: 06-5671
Grant of Rights Date: 2008-08-29
Certificate Number: 3293
Date rights surrendered: 2012-06-22

Variety Description

Variety used for comparison: 'Kirifu Compact Blue'

Summary: The plants of 'Kirifu-24' are broader than those of 'Kirifu Compact Blue'. 'Kirifu-24' has longer shoots and pedicels than 'Kirifu Compact Blue'. The corolla of 'Kirifu-24' has a larger diameter than that of 'Kirifu Compact Blue'. The upper side of the corolla of 'Kirifu-24' is white with light blue violet tones while it is blue with 'Kirifu Compact Blue'. The lower side of the corolla of 'Kirifu-24' is lighter violet than that of 'Kirifu Compact Blue'.

Description:

PLANT: spreading growth habit
SHOOT: very thin to thin, weak anthocyanin colouration at tip

LEAF BLADE: linear to narrowly oblanceolate, obtuse to broadly acute apex, no variegation, medium green on upper side, no blistering

SEPAL: linear, no anthocyanin colouration
FLOWER: single type, salverform
COROLLA: strong to very strong degree of lobing, one colour on upper side
COROLLA LOBE: white with light blue violet tones on upper side, purple green veins on upper side, weak conspicuousness of veins on upper side, light blue violet and violet tones on lower side, strong undulation of margin
COROLLA TUBE: yellow with weak conspicuousness of veins on inner side
ANTHER: yellow before pollen dehiscence, yellow after pollen dehiscence

Origin & Breeding History: 'Kirifu-24' originated from a cross conducted during May 2001, in Tochigi, Japan. The cross was between the female parent 'Kirifu Compact Blue' and the male parent a Calibrachoa pygmaea plant. The initial selection of 'Kirifu-24' was made in September 2001 based on its plant growth habit, vigor, branching habit, time of flowering, sterility and tolerance to weather extremes. The variety has been maintained since October 2001 through the use of vegetative cuttings.

Tests & Trials: Trials for 'Kirfu-24' were conducted during the summer of 2007, in a polyhouse, in St. Thomas, Ontario. The trial included 15 plants each of the candidate and reference varieties. All plants were grown from rooted cuttings and transplanted into 11 cm pots on April 30, 2007. Observations and measurements were taken from 10 plants of each variety on June 21, 2007. All colour determinations were made using the 2001 Royal Horticultural Society (RHS) Colour Chart.


Comparison tables for 'Kirifu-24' with reference variety 'Kirifu Compact Blue'

Plant width (cm)

  'Kirifu-24' 'Kirifu Compact Blue'
mean 47.0 27.6

Shoot length (cm)

  'Kirifu-24' 'Kirifu Compact Blue'
mean 27.1 16.2
std. deviation 5.07 2.40

Pedicel length (cm)

  'Kirifu-24' 'Kirifu Compact Blue'
mean 1.4 0.7
std. deviation 0.39 0.25

Corolla diameter (cm)

  'Kirifu-24' 'Kirifu Compact Blue'
mean 2.1 1.4
std. deviation 0.09 0.08

Colour of corolla lobe (RHS)

  'Kirifu-24' 'Kirifu Compact Blue'
upper side N155B with 85D tones N78A-B
lower side 85D and N87D tones N81D with N81B margins

Click on image for larger view
Kirifu-24
Calibrachoa: 'Kirifu-24' (left) with reference variety 'Kirifu Compact Blue' (right)

Click on image for larger view
Kirifu-24
Calibrachoa: 'Kirifu-24' (left) with reference variety 'Kirifu Compact Blue' (right)

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