Denomination: 'Sunmecareki'
Trade name: Prima Lemon Yellow
Botanical Name: Mecardonia
Applicant/Holder: Suntory Flowers Limited
Administrative Division
4-17-5 Shiba, Minato-ku
Breeder: Kiyoshi Miyazaki, Suntory Flowers Limited, Shiga, Japan
Agent in Canada: BioFlora Inc.
38723 Fingal Line
R.R. #1
St. Thomas, Ontario
N5P 3S5
Tel: 519-631-6241
Application Date: 2006-03-03
Application Number: 06-5256
Grant of Rights Date: 2008-08-29
Certificate Number: 3319
Date rights surrendered: 2010-08-17

Variety Description

Variety used for comparison: 'USMECA67' (Goldflake)

Summary: 'Sunmecareki' has a shorter shoot length than 'USMECA67'. 'Sunmecareki' has smaller leaves and a shorter pedicel length than 'USMECA67'. 'Sunmecareki' has a shorter calyx length and a smaller corolla than 'USMECA67'. 'Sunmecareki' has weaker reflexing of the corolla lobes than 'USMECA67'.


PLANT: cascading/creeping growth habit, very dense branching
STEM: weak anthocyanin colouration at tips, no stem wings

LEAVES: simple, ovate, serrate margin, medium number of serrations, medium green, no variegation, no pubescence

FLOWER: no anthocyanin colouration in pedicel, weak reflexing of corolla lobes, yellow (RHS 9A) on upper side, dark violet veins on upper and lateral lobes.

Origin & Breeding History: 'Sunmecareki' originated from a cross between two unknown Mecardonia seedlings, made in June 1995, at Hokuto-shi, Yamanashi-ken, Japan. In 1996, seedlings obtained from the cross were grown in pots in a glasshouse and evaluated. Two seedlings were selected based on growth habit and flower size. The selected plants were propagated by cuttings and grown in trials. In October 2000, one plant was chosen and named 'Sunmecareki'.

Tests & Trials: Tests and trials were conducted in a polyhouse during the summer of 2007 in St. Thomas, Ontario. The trial included a total of 15 plants of each variety. All plants were grown from rooted cuttings and transplanted into 15 cm pots on May 8, 2007. Observations and measurements were taken from 10 plants of each variety on July 16, 2007. All colour measurements were made using the 2001 Royal Horticultural Society (RHS) Colour Chart.

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

Shoot length (cm)

  'Sunmecareki' 'USMECA67'
mean 25.0 31.8
std. deviation 1.00 3.65

Leaf length (cm)

  'Sunmecareki' 'USMECA67'
mean 1.7 3.0
std. deviation 0.14 0.34

Leaf width (cm)

  'Sunmecareki' 'USMECA67'
mean 0.9 1.9
std. deviation 0.10 0.20

Pedicel length (cm)

  'Sunmecareki' 'USMECA67'
mean 1.8 3.7
std. deviation 0.48 0.63

Calyx length (mm)

  'Sunmecareki' 'USMECA67'
mean 6.0 9.8
std. deviation 0.47 0.63

Corolla width (mm)

  'Sunmecareki' 'USMECA67'
mean 12.6 16.7
std. deviation 0.97 1.16

Corolla length (mm)

  'Sunmecareki' 'USMECA67'
mean 10.3 13.9
std. deviation 1.06 1.10

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

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

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