Syndurango Dark

Chrysanthemum

Denomination: 'Syndurango Dark'
Trade name: Durango Bronze Improved
Botanical Name: Chrysanthemum ×morifolium
Applicant/Holder: Syngenta Crop Protection AG
Schwarzwaldallee 215
Basel
4058
Switzerland
Breeder: Wendy Bergman, Syngenta Flowers, Inc., Alva, United States of America
Agent in Canada: BioFlora Inc.
38723 Fingal Line
R.R. #1
St. Thomas, Ontario
N5P 3S5
Canada
Tel: 519-631-6241
Application Date: 2010-06-01
Application Number: 10-6993
Grant of Rights Date: 2014-09-29
Certificate Number: 4895
Grant of Rights Termination Date: 2032-09-29

Variety Description

Variety used for comparison: 'Orange Yochatham' (Chatham Orange)

Summary: The leaves of 'Syndurango Dark' are longer than the leaves of 'Orange Yochatham'. The length of the terminal lobe of the leaf in relation to the leaf length is medium to long for 'Syndurango Dark' while it is very long for 'Orange Yochatham'. The longitudinal axis of the ray florets from the inner row is moderately incurved along the distal half for 'Syndurango Dark' while it is very weakly incurved along the distal quarter for 'Orange Yochatham'. The colour of the outer side of the flower bud just before opening is light brown with light yellow brown tones for 'Syndurango Dark' whereas it is light yellow brown with yellow green tones for 'Orange Yochatham'. In respect to the colour of the inner side of the ray florets, the colour of ray florets from the inner rows is markedly different from the colour of ray florets from the outer rows for 'Syndurango Dark' while there is no such colour difference between ray florets from the inner and outer rows for 'Orange Yochatham'. In respect to the colour of the outer side of the ray florets, the colour of ray florets from the inner rows is light yellow and the colour of ray florets from the outer rows is brown red with light yellow brown tones for 'Syndurango Dark' while the colour of ray florets from both the inner and outer rows is light yellow brown with brown purple tones for 'Orange Yochatham'.

Description:

PLANT: pot chrysanthemum, bushy type, upright growth habit, sparse to medium branching
STEM: green

PETIOLE: attitude is moderately upwards, medium length relative to leaf length
LEAF: medium to high length to width ratio, length of terminal lobe relative to leaf length is medium to long, lowest lateral sinus is shallow to medium depth, margins of lowest lateral sinus are parallel, predominant shape of base is obtuse and truncate, medium to dark green on upper side, medium to many indentations of margin, medium depth of indentations of margin

FLOWER BUD: outer side is light brown (RHS 174C-D) with light yellow brown (RHS 163C) tones just before opening
FLOWER HEAD: double, low to medium height in non-disbudded plants, medium density of ray florets
RAY FLORET: ligulate type, short corolla tube, flat in cross-section at widest point, no rolling of margins, longitudinal axis is very weakly incurved to straight along distal quarter, longitudinal axis of ray floret from inner row is moderately incurved along distal half, medium to high length to width ratio, emarginate and mamillate tip, inner side is light yellow brown (RHS 163C) with orange brown (RHS 171C) overcolour, overcolour is distributed throughout ray floret as diffuse stripes, colour of outer side is markedly different from colour of inner side, outer side is brown red (RHS 181C) with light yellow brown (RHS 160B-C) tones, in comparison to ray floret from inner row the colour of inner and outer sides is markedly different, outer side of ray floret from inner row is light yellow (closest to RHS 8B)

Origin & Breeding History: 'Syndurango Dark' originated from a naturally occurring whole plant mutation of the variety 'Yodurango'. It was discovered and selected in February 2007 by the breeder, Wendy R. Bergman, in Alva, Florida, USA. Selection of 'Syndurango Dark' was based on its flower colour, and plant growth habit.

Tests & Trials: The trial for 'Syndurango Dark' was conducted in the fall of 2012 at Meyers Fruit Farm in Niagara on the Lake, Ontario. Flowering trials were conducted under greenhouse conditions similar to those used in commercial Chrysanthemum production. 50 unrooted cuttings were stuck into 15 cm pots on August 18, 2012. There were 5 cuttings per pot and the pots were spaced 30 cm apart. The plants were pinched once prior to short day treatment. Observations and measurements were taken from 10 plants, or parts of plants, of the candidate and reference varieties on November 15, 2012. All colour determinations were made using the 2007 Royal Horticultural Society (RHS) Colour Chart.


Comparison tables for 'Syndurango Dark' with reference variety 'Orange Yochatham'

Leaf length including petiole (cm)

  'Syndurango Dark' 'Orange Yochatham'
mean 10.4 7.7
std. deviation 0.91 0.39

Colour of flower bud just before opening (RHS)

  'Syndurango Dark' 'Orange Yochatham'
outer side 174C-D with 163C tones 162C with 150C-D tones

Colour of ray floret from inner row (RHS)

  'Syndurango Dark' 'Orange Yochatham'
outer side closest to 8B 162C-D with 185D tones

Click on image for larger view
Syndurango Dark
Chrysanthemum: 'Syndurango Dark' (left) with reference variety 'Orange Yochatham' (right)

Click on image for larger view
Syndurango Dark
Chrysanthemum: 'Syndurango Dark' (left) with reference variety 'Orange Yochatham' (right)

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