Sunbel 789


Denomination: 'Sunbel 789'
Trade name: Million Bells White
Botanical Name: Calibrachoa
Applicant/Holder: Suntory Flowers Limited
Administrative Division
4-17-5 Shiba, Minato-ku
Breeder: Kiyoshi Miyazaki, Suntory Flowers Limited, Shiga, Japan
Takeshi Kanaya, Suntory Flowers Limited, Shiga, Japan
Yasuyuki Murakami, 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: 2013-11-13
Application Number: 13-8152
Grant of Rights Date: 2015-09-21
Certificate Number: 5117
Date rights surrendered: 2017-09-21

Variety Description

Varieties used for comparison: 'Suncalho' (Million Bells White) and 'SAKCAL108' (Calipetite White)

Summary: The plants of 'Sunbel 789' are taller, with longer shoots, than those of 'SAKCAL108'. The leaf blade of 'Sunbel 789' is smaller than that of 'Suncalho'. The corolla of 'Sunbel 789' is narrower than that of 'Suncalho' and wider than that of 'SAKCAL108'.


PLANT: semi-upright growth habit

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

PEDICEL: no anthocyanin colouration
FLOWER: single type, medium degree of lobing
COROLLA: inner side is white (RHS NN155D), absent or very weak conspicuousness of veins, no colour change at transition to corolla tube
COROLLA LOBE: rounded apex
COROLLA TUBE: inner side is yellow (RHS 7A)

Origin & Breeding History: 'Sunbel 789' originated from a controlled cross conducted in June 2010 at the Omi Research and Development Center of Suntory Flowers Ltd. in Higashiomi-shi, Shiga, Japan. The cross involved the two proprietary varieties, '10C224' as the female parent and '8711-1' as the male parent. Seeds from the pollination were germinated and grown to maturity. A single plant was selected in August 2011 based on its flower colour and growth habit. The selected plant was further propagated by cuttings and grown in pots in trials conducted between January 2012 and May 2013 to assess its botanical characteristics and confirm that the selection characteristics remained stable. It was later named 'Sunbel 789'.

Tests & Trials: The comparative trial for 'Sunbel 789' was conducted as an outdoor irrigated hanging basket trial during the summer of 2014 at BioFlora Inc. 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 into 30 cm hanging baskets on April 18, 2014 and transferred outside on June 10, 2014. Each basket contained 4 cuttings with a total of 5 baskets per variety. Observations and measurements were taken from 10 plants or parts of plants of each variety on June 25, 2014. All colour determinations were made using the 2007 Royal Horticultural Society (RHS) Colour Chart.

Comparison tables for 'Sunbel 789' with reference varieties 'Suncalho' and 'SAKCAL108'

Plant height (cm)

  'Sunbel 789' 'Suncalho' 'SAKCAL108'
mean 14.5 16.2 9.6
std. deviation 1.08 1.89 0.69

Shoot length (cm)

  'Sunbel 789' 'Suncalho' 'SAKCAL108'
mean 17.7 20.2 10.8
std. deviation 4.74 2.80 0.51

Leaf blade length (cm)

  'Sunbel 789' 'Suncalho' 'SAKCAL108'
mean 2.9 4.4 3.1
std. deviation 0.22 0.48 0.45

Leaf blade width (cm)

  'Sunbel 789' 'Suncalho' 'SAKCAL108'
mean 0.9 1.8 0.8
std. deviation 0.09 0.19 0.09

Corolla width (cm)

  'Sunbel 789' 'Suncalho' 'SAKCAL108'
mean 2.9 3.4 2.6
std. deviation 0.10 0.24 0.17

Click on image for larger view
Sunbel 789
Calibrachoa: 'Sunbel 789' (left) with reference varieties 'Suncalho' (centre) and 'SAKCAL108' (right)

Click on image for larger view
Sunbel 789
Calibrachoa: 'Sunbel 789' (left) with reference varieties 'Suncalho' (centre) and 'SAKCAL108' (right)

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