Sunlorose

Asarina

Denomination: 'Sunlorose'
Trade name: Lofos Compact Rose
Botanical Name: Asarina
Applicant/Holder: Suntory Flowers Limited
Administrative Division
4-17-5 Shiba, Minato-ku
Tokyo
108-0014
Japan
Breeder: Yasuko Isobe, Suntory Flowers Limited, 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: 2012-12-21
Application Number: 12-7822
Grant of Rights Date: 2015-09-21
Certificate Number: 5113
Grant of Rights Termination Date: 2035-09-21

Variety Description

Variety used for comparison: 'Sun-Asaro' (Lofos Great Cascade Wine Red)

Summary: The plants of 'Sunlorose' have a smaller leaf blade and a smaller corolla diameter with a shorter corolla tube than the plants of 'Sun-Asaro'. On the middle third of an actively growing stem, the intensity of anthocyanin colouration is absent or very weak for 'Sunlorose' while the intensity of anthocyanin for 'Sun-Asaro' is medium. The base of the leaf blade of 'Sunlorose' is partly overlapping whereas the base of 'Sun-Asaro' is open. The number of incisions of the margin of the leaf blade is medium for 'Sunlorose' while the number of incisions for 'Sun-Asaro' is many. Anthocyanin colouration of the calyx is absent for 'Sunlorose' whereas anthocyanin colouration of the calyx of 'Sun-Asaro' is present and of weak intensity on the dorsal surface only. The sepal of 'Sunlorose' is shorter than the sepal of 'Sun-Asaro'. The main colour of the outer side on the dorsal surface of the corolla tube is purple for 'Sunlorose' while the dorsal surface of the corolla tube of 'Sun-Asaro' is also purple, but redder. The style of 'Sunlorose' is shorter than the style of 'Sun-Asaro'.

Description:

PLANT: creeping growth habit
STEM: medium density of pubescence, light green, absent or very weak intensity of anthocyanin colouration

LEAF BLADE: broad ovate shape, broad acute apex, cordate base, partly overlapping base, medium green on upper side, medium density of pubescence on upper side
INCISIONS OF LEAF BLADE MARGIN: medium number, dentate type, medium depth

CALYX: no anthocyanin colouration, light green
SEPAL: medium density of pubescence, ovate shape
FLOWER BUD: brown purple (RHS 186A-B) on upper side, brown purple (RHS 186A-B) with grey (whiter than RHS 156D) on lower side
FLOWER: bilabiate form
COROLLA: weak undulation of margin, upper lobes reflexing, inner side of upper corolla lobes is purple (darker than RHS 67A)
COROLLA TUBE: outer side is purple (closest to RHS 70A-B) on dorsal surface, inner side is purple (darker than RHS 67A), guide hairs within tube are orange

Origin & Breeding History: 'Sunlorose' originated from a cross pollination conducted in June 2009 at the Omi R&D Center of Suntory Flowers Ltd., located in Higashiomi-shi, Shiga, Japan. The cross involved the two proprietary Asarina hybrid selections 'LP133-1' as the female parent and 'LP115-1' as the male parent. In November 2010, one seedling was selected for its plant growth habit, flower size and flower colour. This selected plant was propagated by cuttings and grown in pots in order to examine its botanical characteristics from April to October 2011. Once it was concluded that this plant was distinguishable from other varieties, uniform and stable in its characteristics, it was named 'Sunlorose'.

Tests & Trials: The comparative trial of 'Sunlorose' was conducted in a polyhouse during the spring of 2014 at BioFlora Inc. in St. Thomas, Ontario. It included a total of 20 plants each of the candidate and reference variety. All plants were grown from rooted cuttings and transplanted into 5 hanging baskets which were 30.5 cm in diameter on April 25, 2014. Each basket contained 4 cuttings. Observations and measurements were taken from 10 plants or parts of plants of each variety on June 5, 2014. All colour determinations were made using the 2007 Royal Horticultural Society (RHS) Colour Chart.


Comparison tables for 'Sunlorose' with reference variety 'Sun-Asaro'

Leaf blade length (cm)

  'Sunlorose' 'Sun-Asaro'
mean 5.2 8.1
std. deviation 0.36 0.48

Leaf blade width (cm)

  'Sunlorose' 'Sun-Asaro'
mean 5.1 7.8
std. deviation 0.34 0.52

Sepal length (cm)

  'Sunlorose' 'Sun-Asaro'
mean 2.0 3.6
std. deviation 0.08 0.16

Corolla diameter (cm)

  'Sunlorose' 'Sun-Asaro'
mean 2.9 4.4
std. deviation 0.13 0.35

Corolla length including corolla tube (cm)

  'Sunlorose' 'Sun-Asaro'
mean 4.9 7.2
std. deviation 0.23 0.39

Corolla tube length (cm)

  'Sunlorose' 'Sun-Asaro'
mean 4.0 5.5
std. deviation 0.10 0.23

Colour of corolla tube (RHS)

  'Sunlorose' 'Sun-Asaro'
inner side darker than 67A closest to 61A with flecks of 69D
dorsal surface of outer side closest to 70A-B closest to 61A

Style length (cm)

  'Sunlorose' 'Sun-Asaro'
mean 3.6 5.4
std. deviation 0.15 0.13

Click on image for larger view
Sunlorose
Asarina: 'Sunlorose' (left) with reference variety 'Sun-Asaro' (right)

Click on image for larger view
Sunlorose
Asarina: 'Sunlorose' (left) with reference variety 'Sun-Asaro' (right)

Click on image for larger view
Sunlorose
Asarina: 'Sunlorose' (left) with reference variety 'Sun-Asaro' (right)

Date modified: