Denomination: 'Organza'
Trade name: Magma Flame Apricot Yellow
Botanical Name: Nemesia
Applicant/Holder: Syngenta Seeds B.V.
P.O. Box 2
1600 AA
Breeder: Har Stemkens, Syngenta Seeds B.V., Enkhuizen, Netherlands
Agent in Canada: BioFlora Inc.
38723 Fingal Line
R.R. #1
St. Thomas, Ontario
N5P 3S5
Tel: 519-631-6241
Application Date: 2005-11-25
Application Number: 06-5661
Date Withdrawn: 2008-07-30

Variety Description

Variety used for comparison: 'Nemhapri' (Magma Flame Pink)

Summary: The upper lobes of 'Organza' are light yellow orange fading to light yellow with age while 'Nemhapri' is light yellow orange in the background only. 'Organza' has dark violet markings on the upper lobes while they are purple for 'Nemhapri'. The lower lip of 'Organza' is yellow orange while it is light yellow orange for 'Nemhapri'. The secondary colour developing in the veins of the lower lip of 'Organza' is purple red while it is purple red to blue pink in the veins for 'Nemhapri'. As the corolla ages, the colour intensifies for 'Organza' while it weakly fades for 'Nemhapri'.


PLANT: erect to semi erect growth habit, sparse density, medium branching
STEM: thin to medium

LEAF BLADE: lanceolate, medium green, entire to dentate margin with very small points
PETIOLE: mostly sessile

CALYX: medium density of pubescence
COROLLA: colour strongly intensifying to pink with age, darker colour distribution towards the apex of the upper lobes on the upper side, light yellow orange fading to light yellow on the upper lobes of the upper side, purple red veins at margin of the upper lobes on the upper side, dark violet markings of very strong conspicuousness on the upper lobes of the upper side, purple to blue pink veins on the lower side
CENTRAL LOBES OF UPPER LIP OF COROLLA: absent or very weak margin undulation, absent or very weak reflexing
LOWER LIP OF COROLLA: yellow orange (darker towards palate), purple red developing in veins with age, weak margin undulation, absent to very weak reflexing
PALATE: yellow orange, medium size

Origin & Breeding History: 'Organza' originated from a controlled cross made in August 2002 in Enkhuizen, The Netherlands. The female parent was identified as D0366-2 and the male parent was identified as B0112-1. The new Nemesia variety was selected from the resultant progeny as a single plant in May 2003 based on criteria for earliness, plant form, and sterility. Asexual reproduction by vegetative cuttings was first conducted in July 2003 in Enkhuizen, The Netherlands.

Tests & Trials: The PBR trials were conducted in a polyhouse during the spring of 2007 in St. Thomas, Ontario. The trials included a total of 15 plants of the candidate variety and reference variety. All plants were grown from rooted cuttings and transplanted into 10.5 cm pots on March 20, 2007. Observations and measurements were taken from 10 plants of each variety on May 15, 2007. All colour measurements were made using the 2001 Royal Horticultural Society (RHS) colour chart.

Comparison tables for 'Organza' with reference variety 'Nemhapri'

Plant height (cm)

  'Organza' 'Nemhapri'
mean 24.8 21.3
std. deviation 2.15 2.48

Pedicel length (mm)

  'Organza' 'Nemhapri'
mean 25.8 21.1
std. deviation 5.43 4.07

Colour of upper side of upper lobes of corolla (RHS)

  'Organza' 'Nemhapri'
main colour 18C fading to 11C with age 19D
2nd colour close to N57D (with age) N57B-C,stronger with age
colour of markings N79B fading to 79B with age 61A

Colour of upper side of lower lip of corolla (RHS)

  'Organza' 'Nemhapri'
main colour 14A-14C 18B
2nd colour N57D in veins with age 63A-B in veins with age

Colour of lower side of corolla (RHS)

  'Organza' 'Nemhapri'
main colour 64B-C veins 63A veins

Palate colour (RHS)

  'Organza' 'Nemhapri'
main colour 23A 23A

Click on image for larger view
Nemesia: 'Organza' (left) with reference variety 'Nemhapri' (right)

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