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Denomination: 'Argyelsin'
Trade name: Molimba Mini Yellow
Botanical Name: Argyranthemum frutescens
Applicant/Holder: Syngenta Crop Protection AG
Schwarzwaldallee 215
Breeder: Ánna M.W.P. Houbraken, Syngenta Seeds B.V., Enkhuizen, Netherlands
Agent in Canada: BioFlora Inc.
38723 Fingal Line
R.R. #1
St. Thomas, Ontario
N5P 3S5
Tel: 519-317-7511
Application Date: 2006-11-09
Application Number: 06-5641
Grant of Rights Date: 2008-07-18
Certificate Number: 3264
Date rights surrendered: 2009-08-25

Variety Description

Varieties used for comparison: 'Argyrayesi' (Shere Maggy Pastel Yellow) and 'Primrose Petite' (Courtyard Daisy Primrose Petite)

Summary: 'Argyelsin' has shorter plants than the reference varieties. The leaf blades of 'Argyelsin' are longer and more narrow than those of the reference varieties. The leaf blades of 'Argyelsin' are medium to dark blue green while those of 'Argyrayesi' are medium blue green and those of 'Primrose Petite' are light to medium grey green. 'Argyelsin' has shorter peduncles than 'Argyrayesi'. Before dehiscence, the floret discs of 'Argyelsin' are yellow orange while those of 'Primrose Petite' are yellow.


PLANT: upright and compact growth habit, very short to short, narrow, sparse to medium foliage density

LEAF BLADE: medium to long, narrow, attenuate base, cuspidate apex, medium to dark blue green
LEAF BLADE LATERAL LOBE: short to medium length, very narrow to narrow

PEDUNCLE: short, medium thickness
FLOWER: medium to broad diameter, semi-double
RAY FLORET: average of 21.0 per flower, straight with reflexing at apex along longitudinal axis, long, medium width, 3.2:1 ratio of length to width, yellow green on upper side before dehiscence, lighter yellow green on upper side after dehiscence, yellowish grey on lower side, light yellow green on upper side in aged flower
FLORET DISC: yellow orange before dehiscence, darker yellow orange after dehiscence
POLLEN: yellow orange

Origin & Breeding History: 'Argyelsin' was developed by the breeder, Anna M.W.P. Houbraken, an employee of Syngenta Seeds B.V. in Enkhuizen, The Netherlands. It originated from a controlled cross made in August 2002 in Enkhuizen, The Netherlands, between the female parent designated 'E0138-2' and mixed pollen from unidentified Argyranthemum frutescens plants. 'Argyelsin' was selected from the resultant progeny as a single plant in August 2003 based on its' plant habit and flower colour.

Tests & Trials: Trials for 'Argyelsin' were conducted in a polyhouse during the spring of 2007 at BioFlora Inc. in St. Thomas, Ontario. The trials included 15 plants per variety. Rooted cuttings were transplanted into 15 cm pots on March 23, 2007. Measured characteristics were based on measurements taken from 10 plants or parts of plants on June 4, 2007. All colour determinations were made using the 2001 Royal Horticultural Society (RHS) Colour Chart.

Comparison tables for 'Argyelsin' with reference varieties 'Argyrayesi' and 'Primrose Petite'

Plant height (cm)

  'Argyelsin' 'Argyrayesi' 'Primrose Petite'
mean 14.3 27.8 21.5
std. deviation 1.57 1.09 1.15

Leaf blade length (cm)

  'Argyelsin' 'Argyrayesi' 'Primrose Petite'
mean 7.3 5.5 5.3
std. deviation 0.39 0.35 0.40

Leaf blade width (cm)

  'Argyelsin' 'Argyrayesi' 'Primrose Petite'
mean 2.4 3.3 3.2
std. deviation 0.35 0.46 0.37

Peduncle length (cm)

  'Argyelsin' 'Argyrayesi' 'Primrose Petite'
mean 9.4 13.5 10.0
std. deviation 1.47 0.67 1.82

Colour of upper side of ray floret (RHS)

  'Argyelsin' 'Argyrayesi' 'Primrose Petite'
before dehiscence 2C more yellow than 2C lighter than 1D
after dehiscence lighter than 1D lighter than 2C lighter than 1D

Colour of floret disc (RHS)

  'Argyelsin' 'Argyrayesi' 'Primrose Petite'
before dehiscence 14B 14B 12A

Click on image for larger view
Argyranthemum: 'Argyelsin' (left) with reference varieties 'Argyrayesi' (centre) and 'Primrose Petite' (right)

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