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Denomination: 'Suntutubu'
Trade name: Ilumina Powder Blue
Botanical Name: Scoparia
Applicant/Holder: Suntory Flowers Limited
Administrative Division
4-17-5 Shiba, Minato-ku
Breeder: Yasuyuki Murakami, Suntory Flowers Limited, Shiga, Japan
Agent in Canada: BioFlora Inc.
38723 Fingal Line
R.R. #1
St. Thomas, Ontario
N5P 3S5
Tel: 519-317-7511
Application Date: 2007-02-23
Application Number: 07-5776
Date Withdrawn: 2009-09-23

Variety Description

Variety used for comparison: 'USSCO10' (Melongolly Blue)

Summary: The plants of 'Suntutubu' have denser branching than the plants of 'USSCO10'. 'Suntutubu' has a shorter pedicel length than 'USSCO10'. 'Suntutubu' has a smaller flower diameter and differs slightly in flower colour from 'USSCO10'.


PLANT: erect growth habit, dense branching, medium foliage density, weak anthocyanin at the base of the stem, red brown stem colour

LEAF: alternate arrangement, simple, linear shape, entire margin, light green on upper side, no petiole

INFLORESCENCE: terminal and axillary in position, three flowers per node
FLOWER: violet-blue hairs, four petals
PETAL: violet blue on upper side
ANTHERS: yellow before dehiscence, orange after dehiscence
FILAMENT: above hairs, purple.

Origin & Breeding History: 'Suntutubu' originated from a cross made at Higashiomi-shi, Shiga-ken, Japan, in May 2004. The female parent was a proprietary selection designated SCWB4 and the male parent was a proprietary selection designated SCWB6. From November 2004, seedlings obtained from the cross were grown in the greenhouse and evaluated. In April 2005, one seedling was selected based on its growth habit, flower size and flower colour.

Tests & Trials: Trials for 'Suntutubu' were conducted during the spring/summer of 2008 in a polyhouse at BioFlora Inc. in St. Thomas, Ontario. There were 15 plants each of the candidate and reference varieties. The plants were grown from rooted cuttings which were transplanted into 15 cm pots on May 13, 2008. Observations and measurements were taken from 10 plants on July 2, 2008. All colour determinations were made using the 2001 Royal Horticulture Society (RHS) Colour Chart.

Comparison tables for 'Suntutubu' with reference variety 'USSCO10'

Pedicel length (cm)

  'Suntutubu' 'USSCO10'
mean 0.84 1.06

Flower diameter (mm)

  'Suntutubu' 'USSCO10'
mean 11.2 13.4
std. deviation 0.42 0.97

Petal colour (RHS)

  'Suntutubu' 'USSCO10'
upper side 91A 94D

Click on image for larger view
Scoparia: 'Suntutubu' (left) with reference variety 'USSCO10' (right)

Click on image for larger view
Scoparia: 'Suntutubu' (left) with reference variety 'USSCO10' (right)

Click on image for larger view
Scoparia: 'Suntutubu' (left) with reference variety 'USSCO10' (right)

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