Denomination: 'Suncalho'
Trade name: Million Bells White
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: 2009-03-25
Application Number: 09-6572
Date Withdrawn: 2011-11-01

Variety Description

Varieties used for comparison: 'USCALI386-2' (Superbells White) and 'Danoa32' (Noa White)

Summary: The leaves and flowers of 'Suncalho' are larger than those of both reference varieties. The margin of the corolla of 'Suncalho' has medium undulation while the margins of both reference varieties have weak undulation. The corolla tube of 'Suncalho' is longer than that of 'Danoa32'.


PLANT: upright growth habit
SHOOT: thin to medium thickness in lower third

LEAF BLADE: obovate, obtuse apex, no variegation, medium green on upper side, no blistering

SEPAL: lanceolate to elliptic, no anthocyanin colouration
FLOWER: single type, funnelform
COROLLA: medium degree of lobing, one colour on upper side
COROLLA LOBE: white (RHS NN155C) on upper and lower sides, absent or very weak conspicuousness of veins on upper side, truncate apex, medium undulation of margin
COROLLA TUBE: yellow (RHS 5A) on inner side, absent or very weak conspicuousness of veins on inner side
ANTHER: yellowish white before dehiscence

Origin & Breeding History: 'Suncalho' originated from a controlled pollination of the proprietary variety '2666-1' with the variety '3135-2' conducted in an isolated area from April to November 2006 in Higashiomi, Shiga, Japan. Seeds from the pollination were germinated and grown to maturity. One plant was selected by the breeder in September 2007 based on growth habit, flowering period, flower size, flower type, flower colour as well as resistance to rain, heat, drought and disease. The selected plant was propagated by cuttings and grown in pots. A trial was carried out from April to September 2008 where it was determined that this variety was distinguishable from any other varieties and it was named 'Suncalho'.

Tests & Trials: Trials for 'Suncalho' were conducted in a polyhouse during the summer-fall of 2010 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 10 cm pots on August 5, 2010. Observations and measurements were taken from 10 plants of each variety on September 25, 2010. All colour determinations were made using the 2007 Royal Horticultural Society (RHS) Colour Chart.

Comparison tables for 'Suncalho' with reference varieties 'USCALI386-2' and 'Danoa32'

Leaf length (cm)

  'Suncalho' 'USCALI386-2' 'Danoa32'
mean 4.8 3.5 3.3
std. deviation 0.30 0.26 0.32

Leaf blade width (cm)

  'Suncalho' 'USCALI386-2' 'Danoa32'
mean 1.8 1.2 1.1
std. deviation 0.13 0.13 0.11

Flower diameter (cm)

  'Suncalho' 'USCALI386-2' 'Danoa32'
mean 4.2 3.7 3.3
std. deviation 0.31 0.26 0.20

Corolla tube length (cm)

  'Suncalho' 'USCALI386-2' 'Danoa32'
mean 2.0 2.1 1.5
std. deviation 0.13 0.13 0.20

Click on image for larger view
Calibrachoa: 'Suncalho' (left) with reference varieties 'Danoa32' (centre) and 'USCALI386-2' (right)

Click on image for larger view
Calibrachoa: 'Suncalho' (left) with reference varieties 'USCALI386-2' (centre) and 'Danoa32' (right)

Click on image for larger view
Calibrachoa: 'Suncalho' (left) with reference varieties 'USCALI386-2' (centre) and 'Danoa32' (right)

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