Denomination: 'Sunbelao'
Trade name: Million Bells Mounding Blue
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: 2010-02-25
Application Number: 10-6852
Grant of Rights Date: 2012-09-26
Certificate Number: 4408
Date rights surrendered: 2014-09-26

Variety Description

Varieties used for comparison: 'Sunbelrikubu' (Million Bells Trailing Blue '09) and 'USCALI51' (Superbells Blue)

Summary: The plant of 'Sunbelao' is taller than the plant of 'Sunbelrikubu'. The leaf blade of 'Sunbelao' is wider than the leaf blade of 'USCALI51'. The pedicel of 'Sunbelao' is shorter than the pedicel of 'Sunbelrikubu'. The flower of 'Sunbelao' has weak lobing while the flower of 'Sunbelrikubu' has medium to strong lobing and the flower of 'USCALI51' has medium lobing. The upper and lower side of the corolla of 'Sunbelao' differ slightly in colour from the corollas of the reference varieties.


PLANT: upright growth habit

LEAF BLADE: broad acute apex, no variegation, upper side medium green

SEPAL: no anthocyanin colouration
FLOWER: single, weak degree of lobing on corolla lobes
COROLLA LOBE: truncate apex, one colour on upper side, upper side violet (RHS N81A) when newly opened, lighter violet (RHS N81B-C) when fully opened with veins and tones of darker violet (RHS N81A), brown purple (RHS N77A) mid-vein and zone at transition to corolla tube, moderately conspicuous veins, lower side violet (RHS N81B-C)
COROLLA TUBE: inner side yellow (RHS 12A) with violet (RHS 77A) at transition to corolla, medium to strongly conspicuous veins.

Origin & Breeding History: The variety 'Sunbelao' originated from a controlled pollination, made from April to November, 2006, at Higashiomi, Shiga, Japan. The female parent was a proprietary calibrachoa variety designated '265-7' and the male parent was a proprietary calibrachoa variety designated '272-1'. Seeds from the pollination were germinated and grown to maturity. One plant was selected by the breeder in September 2007, in a controlled environment at Higashiomi, Shiga, Japan. The selected plant was propagated by cuttings and grown in a pot trial from April to September 2008. The new variety of calibrachoa was found to be distinguishable from any other varieties and was named 'Sunbelao'.

Tests & Trials: Trials for 'Sunbelao' were conducted in a polyhouse during the summer of 2011 in St. Thomas, Ontario. The trial included a total of 20 plants each of the candidate and reference varieties. All plants were grown from rooted cuttings and transplanted into 30 cm hanging baskets on May 12, 2011. 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 4, 2011. All colour determinations were made using the 2007 Royal Horticultural Society (RHS) Colour Chart.

Comparison tables for 'Sunbelao' with reference varieties 'Sunbelrikubu' and 'USCALI51'

Plant height (cm)

  'Sunbelao' 'Sunbelrikubu' 'USCALI51'
mean 22.2 15.1 23.9
std. deviation 1.15 0.99 3.55

Leaf blade width (cm)

  'Sunbelao' 'Sunbelrikubu' 'USCALI51'
mean 1.1 0.9 0.6
std. deviation 0.16 0.12 0.11

Pedicel length (cm)

  'Sunbelao' 'Sunbelrikubu' 'USCALI51'
mean 1.4 2.3 1.3
std. deviation 0.33 0.45 0.40

Colour of corolla lobe (RHS)

  'Sunbelao' 'Sunbelrikubu' 'USCALI51'
upper side - newly opened N81A N87A N82A
upper side - fully opened N81B-C N87B N82A
lower side N81B-C N80D 77C

Click on image for larger view
Calibrachoa: 'Sunbelao' (left) with reference varieties 'Sunbelrikubu' (centre) and 'USCALI51' (right)

Click on image for larger view
Calibrachoa: 'Sunbelao' (left) with reference varieties 'Sunbelrikubu' (centre) and 'USCALI51' (right)

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