CIDZ0109

Chrysanthemum

Variety Description

Variety used for comparison: 'Yosun City' (Point Pelee)

Summary: Including the petiole, the leaf of ‘CIDZ0109' is longer than that of ‘Yosun City'. The petiole of ‘CIDZ0109' is longer than that of ‘Yosun City'. The flower head of ‘CIDZ0109' has fewer ray florets than that of ‘Yosun City'. The ray floret of ‘CIDZ0109' is wider than that of ‘Yosun City'.

Description:

PLANT: bushy type, upright to semi-upright growth habit, dense branching

STEM: green

STIPULE: small
PETIOLE: moderately upwards attitude
LEAF: high length to width ratio, medium to long terminal lobe relative to leaf length, obtuse base, absent or weak glossiness of upper side, dark green upper side, medium to many deep indentations of margin
LOWEST LATERAL SINUS: medium depth, parallel margins with some tendency to converge

FLOWER HEAD: semi-double daisy type, very few rows of ray florets
RAY FLORET: ligulate type only, attitude of basal part ranges between moderately ascending and moderately ascending to horizontal, two keels on upper surface, very short to short corolla tube, weakly concave in cross-section at widest point, weakly revolute rolling of margin at middle half, reflexing and twisted along longitudinal axis with weak curvature along the distal half, high length to width ratio, pointed to dentate shaped tip
RAY FLORET (INNER SIDE): two colours, mainly dark red (RHS N45A) when newly opened, mainly dark purple red (RHS 46A) when fully opened, solid or nearly solid medium yellow (RHS 3A) secondary colour on marginal zone (basal three-quarter margin), colour is markedly different to that on the outer side
RAY FLORET (OUTER SIDE): medium yellow (RHS 3C) with lighter than medium brown purple (RHS 185D)
DISC: small diameter relative to head diameter, slightly domed in cross-section, yellowish green with no dark spot at centre before anther dehiscence, yellow orange at anther dehiscence

Origin & Breeding History: ‘CIDZ0109' originated from a controlled cross conducted between two proprietary breeding lines, the female parent designated ‘F0448' and the male parent designated ‘B7948', conducted in Gilroy, California, USA in March 2018. The resulting seed was sown in August 2018. A single unique seedling was selected in December 2018 based on its flower type and colour, as well as its flowering response time.

Tests & Trials: The comparative trial for ‘CIDZ0109' was conducted in a greenhouse in St. Catharine's, Ontario in the summer of 2025. Fifty unrooted cuttings were planted into 15 cm pots, with 5 cuttings per pot, 10 pots per variety on June 30, 2025. Plants were pinched on July 14, 2025 prior to short day treatment. Plants were spaced 30 cm apart on July 21, 2025. Observations and measurements were taken from 10 plants, or parts of plants, of each variety on September 10, 2025. Mean differences were significant at the 5% confidence probability level based on a paired Student's t-test. Colour determinations were made using the 2015 Royal Horticultural Society (RHS) colour chart.

Comparison tables for 'CIDZ0109' with reference variety 'Yosun City'

Leaf length including petiole (cm)

Petiole length (cm)

Number of ray florets per flower head

Ray floret width (cm)

Click on image for larger view

Chrysanthemum: 'CIDZ0109' (left) with reference variety 'Yosun City' (right)

Click on image for larger view

Chrysanthemum: 'CIDZ0109' (left) with reference variety 'Yosun City' (right)

Click on image for larger view

Chrysanthemum: 'CIDZ0109' (left) with reference variety 'Yosun City' (right)