Desred

Yarrow

Denomination: 'Desred'
Trade name: Desert Red
Botanical Name: Achillea tomentosa x A. millefolium
Applicant/Holder: Syngenta Crop Protection AG
Schwarzwaldallee 215
Basel
4058
Switzerland
Breeder: Henricus G.W. Stemkens, 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: 2009-10-06
Application Number: 09-6732
Grant of Rights Date: 2011-08-19
Certificate Number: 4135
Date rights surrendered: 2014-07-11

Variety Description

Varieties used for comparison: 'Paprika' and 'Summerwine'

Summary: The plants of 'Desred' are shorter and narrower than those of both reference varieties. The ray florets of 'Desred' are dark purple red whereas they are more purple for 'Summerwine'. The main colour of the lower surface of the ray florets of 'Desred' is a light yellow orange whereas it is purple for 'Summerwine'. The main colour of the disc florets of 'Desred' is yellow whereas it is purple red for 'Summerwine'.

Description:

PLANT: upright growth habit, dense branching, flowers mid to late season for long duration
STEM: green tinged with brownish red

LEAF: pinnately dissected, alternate arrangement
BLADE: oblong and oblanceolate shape, mucronate apex, truncate base, pinnatisect margin, dense pubescence on upper and lower surfaces, light to medium green on upper surface, light green on lower surface

INFLORESCENCE: upright corymb
RAY FLORET: single coloured, sinuate/notched apex, five ray florets per capitulum
UPPER SURFACE: dark purple red (darker than RHS 53A when fully opened fading to 53B), light yellow/brown red at base
LOWER SURFACE: light yellow orange (RHS 11D) with orange brown margins (RHS N170D)
DISC FLORET: mainly yellow

Origin & Breeding History: 'Desred' arose from an open pollinated cross of an Achilliea tomentosa seedling designated 'H4981-5' as the female parent with an unknown Achillea millefolium variety as the male parent which was carried out in the summer of 2003 in Enkhuizen, the Netherlands. The resulting progeny were sown in the greenhouse in March 2004. The new variety, 'Desred' was selected as a single seedling in July 2004 in Enkhuizen based on flower colour, plant habit and production characteristics.

Tests & Trials: Trials for 'Desred' were conducted in a polyhouse during the spring of 2010 in St. Thomas, Ontario. The trials included a total of 15 plants of each variety. All plants were grown from rooted cuttings and transplanted into 4.5 litre containers on July 2, 2010. Observations and measurements were taken from 10 plants of each variety on August 3, 2010. All colour determinations were made using the 2007 Royal Horticultural Society (RHS) Colour Chart.


Comparison tables for 'Desred' with reference varieties 'Paprika' and 'Summerwine'

Plant height (cm)

  'Desred' 'Paprika' 'Summerwine'
mean 18.6 37.8 26.2
std. deviation 1.46 5.37 4.64

Plant diameter (cm)

  'Desred' 'Paprika' 'Summerwine'
mean 25.1 40.4 34.7
std. deviation 3.45 4.07 5.90

Ray floret: main colour of upper surface (RHS)

  'Desred' 'Paprika' 'Summerwine'
fully opened darker than 53B 60A changing to 53B-C redder than 59A
aging to 53B 59D changing to 53D closest to 71A-70A

Ray floret: colour of lower surface (RHS)

  'Desred' 'Paprika' 'Summerwine'
main colour 11D with N170D at margins 11D with 49C-D at margins 70A-B

Click on image for larger view
Desred
Yarrow: 'Desred' (left) with reference varieties 'Paprika' (centre) and 'Summerwine' (right)

Click on image for larger view
Desred
Yarrow: 'Desred' (left) with reference varieties 'Paprika' (centre) and 'Summerwine' (right)

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