Denomination: 'Sunbel-labu'
Trade name: Million Bells Lavender
Botanical Name: Calibrachoa
Applicant/Holder: Suntory Flowers Limited
Administrative Division
4-17-5 Shiba, Minato-ku
Breeder: Takuro Ishihara, Suntory Flowers Limited, Tokyo, Japan
Agent in Canada: BioFlora Inc.
38723 Fingal Line
R.R. #1
St. Thomas, Ontario
N5P 3S5
Tel: 519-631-6241
Application Date: 2004-02-27
Application Number: 04-4072
Grant of Rights Date: 2006-08-03
Certificate Number: 2482
Date rights surrendered: 2014-07-31

Variety Description

Variety used for comparison: 'KLEC02060' (MiniFamous Lavender)

Summary: 'Sunbel-labu' has weaker anthocyanin colouration of the shoot than 'KLEC02060'. The leaf of 'Sunbel-labu' is lighter green than 'KLEC02060'. 'Sunbel-labu' has a shorter sepal than 'KLEC02060'. 'Sunbel-labu' has a shorter pedicel with weaker anthocyanin colouration than 'KLEC02060'. The corolla of 'Sunbel-labu' is smaller in diameter with weaker lobing than 'KLEC02060'. 'Sunbel-labu' has a lighter blue-violet flower colour when fully opened than 'KLEC02060'. The corolla lobe margin of 'Sunbel-labu' has weaker undulation than 'KLEC02060'. 'Sunbel-labu' has a shorter corolla tube than 'KLEC02060'.


'Sunbel-labu' is a short to medium calibrachoa variety with a horizontal to mounding growth habit. The shoots are medium in thickness, and short to medium in length with very weak to weak anthocyanin present. The leaves are light to medium green, elliptic in shape, with a broadly acute or obtuse apex. There is no variegation present on the leaf blade. The sepals are rhombic in shape with anthocyanin present. 'Sunbel-labu' produces single, funnelform, light blue-violet flowers. The corolla has a small diameter with very weak to weak lobing, weak undulation of the margin and weak to medium conspicuousness of the purple veins. The corolla lobe apex is truncate to retuse. The inside of the corolla tube is yellow and has veins of very weak to weak conspicuousness. Anther colour is yellow.

Origin & Breeding History: 'Sunbel-labu' originated from a cross of '9LB6' as the female parent and '9LB1' as the male parent in April 2000 at Omi Research Center, Shiga-ken, Japan. In September 2000, 50 seedlings of this cross were grown in pots in a glasshouse and evaluated. One seedling was selected based on its growth habit, flower size and colour in September 2001. That seedling was propagated by cuttings and a trial was carried out by potting and bedding from April to October 2002 where it was evaluated and described.

Tests & Trials: Tests and trials for 'Sunbel-labu' were conducted in a polyhouse during the summer of 2005 in St. Thomas, Ontario. Trials included a total of 18 plants of each variety. Plants were grown from rooted cuttings transplanted into 25 cm baskets on May 27, 2005. Each basket contained 3 cuttings with a total of six baskets per variety. All colour characteristics were determined using the 2001 RHS colour chart and measured characteristics were based on ten plant measurements.

Comparison tables for 'Sunbel-labu' with reference variety 'KLEC02060'

Sepal length (mm)

  'Sunbel-labu' 'KLEC02060'
mean 10.6 14.2
std. deviation 0.70 1.14

Pedicel length (mm)

  'Sunbel-labu' 'KLEC02060'
mean 10.5 23.4
std. deviation 2.55 3.34

Corolla diameter (mm)

  'Sunbel-labu' 'KLEC02060'
mean 24.8 33.1
std. deviation 1.03 1.10

Corolla colour (RHS)

  'Sunbel-labu' 'KLEC02060'
upper side 76C with ring of N82C 76A-B with ring of N82A
lower side 76B 76B
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