Argyrayesi

Argyranthemum

Denomination: 'Argyrayesi'
Trade name: Shere Maggy Pastel Yellow
Botanical Name: Argyranthemum frutescens
Applicant/Holder: Syngenta Crop Protection AG
Schwarzwaldallee 215
Basel
4058
Switzerland
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
Canada
Tel: 519-631-6241
Application Date: 2005-04-29
Application Number: 05-4828
Grant of Rights Date: 2007-06-08
Certificate Number: 2771
Date rights surrendered: 2011-05-03

Variety Description

Varieties used for comparison: 'Argyraketis' (Shere Maggy White) and 'Primrose Petite' (Courtyard Daisy Primrose Petite)

Summary: 'Argyrayesi' has a taller plant height and wider plant width than 'Primrose Petite'. 'Argyrayesi' has a longer, wider leaf than the reference varieties. 'Argyrayesi' has dark blue green leaves while 'Argyraketis' has light blue green leaves and 'Primrose Petite' has medium grey green leaves. 'Argyrayesi' has yellow green ray florets while 'Argyraketis' has white ray florets and 'Primrose Petite' has slightly lighter yellow green ray florets 'Argyrayesi' has a smaller disc than 'Primrose Petite'.

Description:

PLANT: upright bushy growth habit, dense branching, early flowering

LEAF BLADE: base attenuate, apex mucronate, dark blue green on upper side

PEDUNCLE: thin

FLOWER: single to semi-double, ray floret straight along longitudinal axis, outer ray florets yellow green on upper and lower side, disc yellow orange before and after anther dehiscence.

Origin & Breeding History: 'Argyrayesi' originated from an open pollinated cross that took place in the summer of 2001, in Enkhuizen, The Netherlands. The female parent was a proprietary seedling selection and the male parent was an unidentified selection. The resultant seed was sown and the new variety was selected from the progeny in August 2002, based on the criteria for early flowering, flower colour, plant habit, branching and plant vigour. Asexual reproduction of the new variety by vegetative cuttings was first conducted in August 2002 in Enkhuizen, The Netherlands.

Tests & Trials: 'Argyrayesi' was tested during the spring of 2006 in St. Thomas, Ontario. The trial included 15 plants of each variety. All plants were grown from rooted cuttings transplanted into 15 cm pots on March 30, 2006. Observations and measurements were taken from 10 plants of each variety on May 26, 2006. All colour measurements were made using the 2001 RHS colour chart.


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

Plant height (cm)

  'Argyrayesi' 'Argyraketis' 'Primrose Petite'
mean 26.7 25.4 22.1
std. deviation 1.83 2.37 1.15

Plant width (cm)

  'Argyrayesi' 'Argyraketis' 'Primrose Petite'
mean 37.9 39.1 30.6
std. deviation 1.66 3.98 3.55

Leaf length (cm)

  'Argyrayesi' 'Argyraketis' 'Primrose Petite'
mean 5.7 4.5 4.7
std. deviation 0.80 0.38 0.56

Leaf width (cm)

  'Argyrayesi' 'Argyraketis' 'Primrose Petite'
mean 3.6 2.4 2.8
std. deviation 0.66 0.35 0.36

Peduncle length (mm)

  'Argyrayesi' 'Argyraketis' 'Primrose Petite'
mean 11.1 8.9 6.9
std. deviation 1.55 1.03 1.45

Flower diameter (cm)

  'Argyrayesi' 'Argyraketis' 'Primrose Petite'
mean 4.4 4.1 5.5
std. deviation 0.13 0.28 0.20

Colour of ray floret (RHS)

  'Argyrayesi' 'Argyraketis' 'Primrose Petite'
upper side 2C white 1D
lower side 1D white 157D (more yellow than)

Colour of aged ray floret (RHS)

  'Argyrayesi' 'Argyraketis' 'Primrose Petite'
upper side 2C (lighter than) white 1D

Disc diameter (mm)

  'Argyrayesi' 'Argyraketis' 'Primrose Petite'
mean 13.8 12.6 16.6
std. deviation 0.92 0.52 1.35

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

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

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

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