Denomination: 'CIDZ0026'
Trade name: Shasta Improved
Botanical Name: Chrysanthemum ×morifolium
Applicant/Holder: Syngenta Crop Protection AG
Schwarzwaldallee 215
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
Tel: 519-631-6241
Application Date: 2011-07-29
Application Number: 11-7347
Date Withdrawn: 2014-09-29

Variety Description

Variety used for comparison: 'Yojuneau' (Juneau)

Summary: The plants of 'CIDZ0026' are broader with a larger flower head diameter, and a longer ray floret than the plants of 'Yojuneau'.


PLANT: pot chrysanthemum, bushy type, semi-upright growth habit, sparse to medium branching, medium to many flower heads
STEM: green

PETIOLE: attitude ranges from horizontal to moderately downwards, medium length relative to leaf length
LEAF: medium length to width ratio, length of terminal lobe relative to leaf length is medium, lowest lateral sinus is medium depth, margins of lowest lateral sinus are diverging, predominant shape of base is obtuse, absent or weak glossiness of upper side, medium green on upper side, medium number of indentations of margin, medium depth of indentations of margin

FLOWER BUD: outer side is white (RHS NN155B) just before opening
FLOWER HEAD: semi-double, daisy type, low to medium height in non-disbudded plants, two rows of ray florets, medium density of ray florets
RAY FLORET: ranging from 23 to 29 per flower head, ligulate type, attitude of basal part is moderately ascending, two keels on upper surface, very short corolla tube, ranging from weakly concave to flat in cross-section at widest point, no rolling of margins, longitudinal axis is straight, medium to high length to width ratio, mamillate tip, inner side is white (RHS NN155C), colour of outer side is similar to colour of inner side
DISC: small diameter relative to head diameter, profile in cross-section is indented, green to yellowish with no spot at centre before anther dehiscence, yellowish green at anther dehiscence

Origin & Breeding History: 'CIDZ0026' originated from a controlled cross-pollination conducted in February 2008, in Gilroy, California, USA, as part of a controlled breeding program of Syngenta Flowers, Inc. The cross involved a proprietary line designated 'YB-A9617' as the female parent, and a proprietary line designated 'YB-B2756' as the male parent. The resultant seed was sown in a greenhouse in July 2008. 'CIDZ0026' was selected as a single plant from the progeny in December 2008 by the breeder, Wendy R. Bergman, based on its flower colour, and plant growth habit.

Tests & Trials: The trial for 'CIDZ0026' 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 13, 2012. All colour determinations were made using the 2007 Royal Horticultural Society (RHS) Colour Chart.

Comparison tables for 'CIDZ0026' with reference variety 'Yojuneau'

Plant width (cm)

  'CIDZ0026' 'Yojuneau'
mean 51.8 45.9
std. deviation 1.93 2.47

Flower head diameter (cm)

  'CIDZ0026' 'Yojuneau'
mean 8.0 6.8
std. deviation 0.64 0.36

Ray floret length (cm)

  'CIDZ0026' 'Yojuneau'
mean 3.9 3.4
std. deviation 0.27 0.19

Click on image for larger view
Chrysanthemum: 'CIDZ0026' (left) with reference variety 'Yojuneau' (right)

Click on image for larger view
Chrysanthemum: 'CIDZ0026' (left) with reference variety 'Yojuneau' (right)

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