CIFZ0028

Chrysanthemum

Variety Description

Variety used for comparison: 'Yovanna' (Vanna Snow)

Summary: When grown without precise day length control, the natural flowering period of 'CIFZ0028' begins very early while the natural flowering period of 'Yovanna' begins early. 'CIFZ0028' has a shorter leaf, a larger flower head diameter, a longer ray floret, a larger disc diameter, and a longer disc floret than 'Yovanna'. The depth of the lowest lateral sinus of the leaf is shallow for 'CIFZ0028' while it is medium depth for 'Yovanna'. 'CIFZ0028' has an anemone type disc whereas 'Yovanna' has a daisy type disc. The diameter of the disc relative to the flower head diameter is medium for 'CIFZ0028' while it is small for 'Yovanna'. Before anther dehiscence, the colour of the disc of 'CIFZ0028' is yellow whereas the disc of 'Yovanna' is yellow orange. At anther dehiscence, the colour of the disc of 'CIFZ0028' is light yellow whereas the disc of 'Yovanna' is medium yellow.

Description:

PLANT: garden chrysanthemum, bushy type, hemispherical growth habit, dense branching, many flower heads, natural flowering period begins very early when grown without precise day length control
STEM: green

PETIOLE: attitude is moderately upwards, short relative to leaf length
LEAF: low to medium length to width ratio, length of terminal lobe relative to leaf length is medium, lowest lateral sinus is shallow, margins of lowest lateral sinus are diverging, predominant shape of base is obtuse, weak glossiness of upper side, medium green on upper side, few indentations of margin, shallow indentations of margin

FLOWER BUD: outer side is light yellow (RHS 4D) just before opening
FLOWER HEAD: semi-double, anemone type, low height in non-disbudded plants, medium number of rows of ray florets, sparse to medium density of ray florets
RAY FLORET: ranging from 41 to 58 per flower head, ligulate type, attitude of basal part is moderately ascending, two keels on upper surface, short corolla tube, flat to weakly convex in cross-section at widest point, no rolling of margins, longitudinal axis is straight, high to very high length to width ratio, dentate tip, inner side is white (RHS NN155D), colour of outer side is similar to colour of inner side, in comparison to ray floret from inner row the colour of inner and outer sides is similar
DISC: medium diameter relative to flower head diameter, yellow (RHS 5B-C) with no dark spot at centre before anther dehiscence, yellow (RHS 6B) at anther dehiscence
DISC FLORET: petaloid type, white (RHS NN155D) with yellow (RHS 6B-C) tips

Origin & Breeding History: 'CIFZ0028' originated from a controlled cross-pollination conducted in September 2007, in Amanecer, Columbia, as part of a controlled breeding program of Syngenta Flowers, Inc. The cross involved a line designated '03-M220' as the female parent, and a line designated '04-M222' as the male parent. The resultant seed was sown in a greenhouse in Alva, Florida, USA, in October 2008. 'CIFZ0028' was selected as a single plant from the progeny on March 25, 2009 by the breeder, Mark A. Smith, based on its natural season response time, flower size and type, plant growth habit, and uniformity in flowering habit.

Tests & Trials: The trial for 'CIFZ0028' was conducted as an outdoor irrigated trial during the summer of 2012 at BioFlora Inc. in St. Thomas, Ontario. It included a total of 20 plants of the candidate variety and 15 plants of the reference variety. All plants were grown from rooted cuttings and transplanted into 20 cm pots on June 11, 2012. Observations and measurements were taken from 10 plants, or parts of plants, of the candidate and reference varieties on August 30, 2012. All colour determinations were made using the 2007 Royal Horticultural Society (RHS) Colour Chart.

Comparison tables for 'CIFZ0028' with reference variety 'Yovanna'

Leaf length including petiole (cm)

Flower head diameter (cm)

Ray floret length (cm)

Disc diameter (cm)

Disc floret length (cm)

Colour of disc (RHS)

Click on image for larger view

Chrysanthemum: 'CIFZ0028' (left) with reference variety 'Yovanna' (right)

Click on image for larger view

Chrysanthemum: 'CIFZ0028' (left) with reference variety 'Yovanna' (right)