Denomination: 'Suncalkuki'
Trade name: Million Bells Trailing Yellow
Botanical Name: Calibrachoa
Applicant/Holder: Suntory Flowers Limited
Administrative Division
4-17-5 Shiba, Minato-ku
Breeder: Takeshi Kanaya, Suntory Flowers Limited, Shiga, Japan
Agent in Canada: BioFlora Inc.
38723 Fingal Line
R.R. #1
St. Thomas, Ontario
N5P 3S5
Tel: 519-631-6241
Application Date: 2008-03-07
Application Number: 08-6215
Grant of Rights Date: 2010-09-23
Certificate Number: 3950
Date rights surrendered: 2014-09-23

Variety Description

Varieties used for comparison: 'KLECA05104' (MiniFamous Lemon) and 'Balcabyelow' (Cabaret Yellow)

Summary: The plants of 'Suncalkuki' are shorter than those of both reference varieties and narrower than those of 'KLECA05104'. 'Suncalkuki' has shorter leaf blades than 'KLECA05104' and longer leaf blades than 'Balcabyelow'. The pedicels of 'Suncalkuki' are longer than those of 'Balcabyelow'. 'Suncalkuki' has corolla with weak degree of lobing while 'Balcabyelow' has corolla with medium degree of lobing. The apex of the corolla lobes of 'Suncalkuki' are cuspidate while those of 'KLECA05104' are truncate.


PLANT: trailing growth habit

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

SEPAL: lanceolate, no anthocyanin colouration
FLOWER: single, salverform
COROLLA: weak degree of lobing, one colour on upper side
COROLLA LOBE: upper side yellow (RHS 5A-B) with lighter yellow (RHS 5C) margins and very weak conspicuousness of veins, lower side yellow green (RHS 2D) with yellow green (RHS 1B) midveins, cuspidate apex
COROLLA TUBE: inner side yellow (RHS 6A) with weak conspicuousness of veins

Origin & Breeding History: 'Suncalkuki' originated from a cross between the female parent 'R101' and the male parent 'C31' conducted in April 2004 at Higashiomi-shi, Shiga, Japan. The seedlings from the cross were grown in pots in the glasshouse and evaluated. In September 2005, one seedling was selected based on its growth habit, flower size and flower colour. The selected plant was propagated by cuttings and grown in pots. The trial was carried out from April to September 2006 at Higashiomi-shi, Shiga, Japan. The botanical characteristics of that plant were examined and found to be distinguishable from any other varieties. The new Calibrachoa variety was named 'Suncalkuki'.

Tests & Trials: Trials for 'Suncalkuki' were conducted in a polyhouse during the spring of 2009 in St. Thomas, Ontario. The trial included 20 plants each of the candidate and reference varieties. All plants were grown from rooted cuttings and transplanted in to 30 cm hanging baskets on May 21, 2009. Each basket contained 4 cuttings with a total of 5 baskets per variety. Observations and measurements were taken from 10 plants of each variety on July 8, 2009. All colour determinations were made using the 2007 Royal Horticultural Society (RHS) Colour Chart.

Comparison tables for 'Suncalkuki' with reference varieties 'KLECA05104' and 'Balcabyelow'

Plant height (cm)

  'Suncalkuki' 'KLECA05104' 'Balcabyelow'
mean 11.5 14.4 16.8
std. deviation 1.14 2.29 3.83

Plant width (cm)

  'Suncalkuki' 'KLECA05104' 'Balcabyelow'
mean 52.9 57.9 52.8
std. deviation 1.52 3.17 4.97

Leaf blade length (cm)

  'Suncalkuki' 'KLECA05104' 'Balcabyelow'
mean 3.5 5.3 2.5
std. deviation 0.22 0.37 0.13

Pedicel length (cm)

  'Suncalkuki' 'KLECA05104' 'Balcabyelow'
mean 1.7 2.0 1.2
std. deviation 0.22 0.55 0.08

Click on image for larger view
Calibrachoa: 'Suncalkuki' (left) with reference varieties 'KLECA05104' (centre) and 'Balcabyelow' (right)

Click on image for larger view
Calibrachoa: 'Suncalkuki' (left) with reference varieties 'KLECA05104' (centre) and 'Balcabyelow' (right)

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