Sunsenebu

Cineraria

Denomination: 'Sunsenebu'
Trade name: Blue
Botanical Name: Senecio cruentus x S. heritieri
Applicant/Holder: Suntory Flowers Limited
Administrative Division
4-17-5 Shiba, Minato-ku
Tokyo
108-0014
Japan
Breeder: Kiyoshi Miyazaki, Shiga, Japan
Agent in Canada: BioFlora Inc.
38723 Fingal Line
R.R. #1
St. Thomas, Ontario
N5P 3S5
Canada
Tel: 519-631-6241
Application Date: 1999-07-09
Application Number: 99-1736
Protective direction granted: 1999-07-09
Grant of Rights Date: 2003-09-26
Certificate Number: 1592
Date rights surrendered: 2014-09-26

Variety Description

Varieties used for comparison: 'Sunsenedibu' and 'Jester Blue'

Summary: 'Sunsenebu' produces larger plants with smaller leaves than those of 'Jester Blue'. 'Sunsenebu' has longer petioles than the reference varieties. The peduncle for 'Sunsenebu' is shorter than that for 'Sunsenedibu' and longer than that for 'Jester Blue'. Intensity of anthocyanin colouration of the peduncle for 'Sunsenebu' is weak to moderate while it is absent to very weak for 'Jester Blue'. Diameter of the cyme for 'Sunsenebu' is larger than that of the reference varieties. 'Sunsenebu' has larger flowers with longer ray florets than 'Jester Blue'. The lower side of the floret for 'Sunsenebu' is light violet blue while it is blue violet for 'Sunsenedibu'.

Description:

'Sunsenebu' is a vegetatively propagated, annual cineraria variety. The plant growth habit is upright-bushy and the degree of branching is medium to dense. The colour of the stem is dark green with weak intensity of anthocyanin colouration at the top of the stem and very strong anthocyanin at the base. Shape of the stems is smooth. The stems are small to medium in thickness with moderate to strong glaucosity and dense to very dense pubescence. Arrangement of the leaves is alternate. The leaf type is simple and the petiole is present. Stipules are present at the base of the petioles. The shape of the leaf blade is reniform with an acute shaped apex, a very open, cordate shaped base and a dentate to incised margin. Curvature of the leaf blade is absent and undulation of the margin is weak. Pubescence of the leaf blade is sparse to moderate on the upper side and very dense on the lower side. Glaucosity on the upper side of the leaf blade is moderate. Main colour of the leaf blade is medium green on the upper side and light green on the lower side. Variegation of the leaf blade is absent.

Time of flowering for 'Sunsenebu' is late in the season and lasts a moderate to long time. There is one flowering period. The inflorescence type is a cyme and the position of the flowers is both terminal and axillary. Attitude of the flowers is erect to semi-erect depending on their location within the cyme. The peduncle has weak to moderate intensity of anthocyanin colouration and moderate pubescence. Intensity of anthocyanin colouration of the pedicel is weak to moderate. The sepals are oblong to lanceolate in shape with an acute shaped apex and strong recurvature of the tip. The margin of the sepal is entire. Pubescence of the sepals is sparse on the upper side and absent to very sparse on the lower side. The sepals have weak to moderate glaucosity. Main colour of the upper side of the sepals is dark green with dark violet secondary colouration distributed in the middle.

'Sunsenebu' produces few ray florets per flower which are medium long to long and narrow. The length/width ratio of the ray floret is medium to high. The longitudinal axis of the majority of ray florets is reflexing with a weak to moderate curvature. The ray floret is linear to oblong in shape with a praemorse shaped apex and weak recurvature of the tip. Pubescence on the outer side of the ray floret is absent. Main colour of the ray florets is violet blue on the inner side and light violet blue on the outer side. Secondary colour on the inner side is distributed as lighter violet blue stripes in the center and along each margin of the ray florets. The floret disc is dark violet in colour.

Origin & Breeding History: 'Sunsenebu' originated from a cross between the female parent, Senecio cruentus 'Jupiter Blue', and the pollen parent, Senecio heritierii, at the Hakushu Research Center of Suntory Ltd., Yamanashi-ken, Japan in January of 1995. It was grown from tissue culture and the botanical characteristics have been examined. The plants have been tested in pots since July 1996.

Tests & Trials: The test and trials for 'Sunsenebu' were conducted at Norseco Inc., in Boisbriand, Quebec in the winter of 2001. There were 15 plants per variety and they were grown in a poly-house. The plants were grown in 15 cm pots and spaced approximately 20 cm apart.


Comparison tables for 'Sunsenebu' with reference varieties 'Sunsenedibu' and 'Jester Blue'

Plant height (cm)

  'Sunsenebu' 'Sunsenedibu' 'Jester Blue'
mean 34.7 32.7 15.9
std. deviation 2.76 2.92 1.61
number measured 14 20 14

Plant width (cm)

  'Sunsenebu' 'Sunsenedibu' 'Jester Blue'
mean 30.7 32.1 26.1
std. deviation 2.45 2.99 2.03
number measured 14 20 14

Leaf blade length (cm)

  'Sunsenebu' 'Sunsenedibu' 'Jester Blue'
mean 5.9 5.1 7.8
std. deviation 1.27 1.11 1.66
number measured 20 20 20

Leaf blade width (cm)

  'Sunsenebu' 'Sunsenedibu' 'Jester Blue'
mean 7.2 6.3 8.6
std. deviation 1.51 1.29 1.86
number measured 20 20 20

Petiole length (mm)

  'Sunsenebu' 'Sunsenedibu' 'Jester Blue'
mean 82 64 59
std. deviation 11.96 9.48 1.33
number measured 15 15 20

Peduncle length (cm)

  'Sunsenebu' 'Sunsenedibu' 'Jester Blue'
mean 5.9 7.7 4.3
std. deviation 1.42 1.94 1.31
number measured 15 15 20

Pedicel length (cm)

  'Sunsenebu' 'Sunsenedibu' 'Jester Blue'
mean 5.2 5.6 2.6
std. deviation 1.58 2.06 0.50
number measured 20 20 15

Colour of upper side of sepal (RHS)

  'Sunsenebu' 'Sunsenedibu' 'Jester Blue'
main 143A 143C 146C
secondary 79B 79A N/A

Diameter of cyme (cm)

  'Sunsenebu' 'Sunsenedibu' 'Jester Blue'
mean 16.3 15.0 8.5
std. deviation 2.19 2.97 1.39
number measured 10 10 10

Diameter of flower (cm)

  'Sunsenebu' 'Sunsenedibu' 'Jester Blue'
mean 6.6 6.1 3.2
std. deviation 0.69 0.96 0.33
number measured 15 15 15

Length of ray floret (cm)

  'Sunsenebu' 'Sunsenedibu' 'Jester Blue'
mean 2.9 2.7 1.3
std. deviation 0.39 0.30 0.14
number measured 10 10 10

Main colour of ray floret (RHS)

  'Sunsenebu' 'Sunsenedibu' 'Jester Blue'
inner side 89B-89C & 94A 89B-89C 95A-95B
outer side 91D 89D 97C

Secondary colour of ray floret (RHS)

  'Sunsenebu' 'Sunsenedibu' 'Jester Blue'
inner side 94C(middle) & 93B(margins) 76A 155D & 1D
outer side N/A N/A 155D

Colour of disc

  'Sunsenebu' 'Sunsenedibu' 'Jester Blue'
RHS number 83A 83A 93A-93B
Date modified: