Denomination: 'Sunmecakira'
Trade name: Prima Bright Yellow
Botanical Name: Mecardonia
Applicant/Holder: Suntory Flowers Limited
Administrative Division
4-17-5 Shiba, Minato-ku
Breeder: Kiyoshi Miyazaki, Shiga, Japan
Agent in Canada: BioFlora Inc.
38723 Fingal Line
R.R. #1
St. Thomas, Ontario
N5P 3S5
Tel: 519-631-6241
Application Date: 2008-02-21
Application Number: 08-6181
Grant of Rights Date: 2010-09-23
Certificate Number: 3951
Date rights surrendered: 2014-09-23

Variety Description

Variety used for comparison: 'USMECA67' (Goldflake)

Summary: The plants of 'Sunmecakira' are narrower, with shorter shoot length than those of 'USMECA67'. The leaves of 'Sunmecakira' are shorter and narrower than those of 'USMECA67'. The corolla of 'Sunmecakira' is slightly darker yellow than that of 'USMECA67'. There are many conspicuous veins on the corollas of 'Sunmecakira' whereas there are few to medium on 'USMECA67'.


PLANT: semi-erect to spreading growth habit, dense branching
STEM: weak to medium intensity of anthocyanin colouration, no stem wings

LEAVES: simple, ovate, dentate margin incisions, many teeth, no variegation, medium green, very weak pubescence

FLOWER: weak to medium intensity of anthocyanin colouration on pedicel, medium reflexing of corolla lobes, yellow (RHS 9A) on upper side
VEINS ON UPPER LOBES: brown purple (RHS 183A), medium to strong conspicuousness, many in number

Origin & Breeding History: 'Sunmecakira' originated from the cross between '3Mec8A' and '01T9', made in 2004 at Higashiomi-shi, Shiga, Japan. Seedlings obtained from the cross were grown in pots in a glasshouse and evaluated. Some seedlings were selected based on growth habit, flower size and colour. The selected plants were propagated by cuttings and grown in trials. In 2006, one plant was chosen and named 'Sunmecakira'.

Tests & Trials: Trials for 'Sunmecakira' were conducted in a polyhouse during the summer of 2009 in St. Thomas, Ontario. The trial included a total of 15 plants of each of the candidate and reference varieties. All plants were grown from rooted cuttings and transplanted into 15 cm pots on May 5, 2009. Observations and measurements were taken from 10 plants of each variety on June 11, 2009. All colour determinations were made using the 2001 Royal Horticultural Society (RHS) Colour Chart.

Comparison tables for 'Sunmecakira' with reference variety 'USMECA67'

Plant: height (cm)

  'Sunmecakira' 'USMECA67'
mean 8.2 6.3
std. deviation 1.11 0.59

Plant: width (cm)

  'Sunmecakira' 'USMECA67'
mean 32.7 59.6
std. deviation 2.56 6.30

Shoot: length (cm)

  'Sunmecakira' 'USMECA67'
mean 17.3 33.6
std. deviation 1.23 3.40

Leaf length (cm)

  'Sunmecakira' 'USMECA67'
mean 2.6 3.1
std. deviation 0.20 0.28

Leaf width (cm)

  'Sunmecakira' 'USMECA67'
mean 1.2 2.1
std. deviation 0.12 0.16

Colour of corolla lobes (RHS)

  'Sunmecakira' 'USMECA67'
upper side 9A-B 6A

Click on image for larger view
Mecardonia: 'Sunmecakira' (left) with reference variety 'USMECA67' (right)

Click on image for larger view
Mecardonia: 'Sunmecakira' (left) with reference variety 'USMECA67' (right)

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