Yomarquette

Chrysanthemum

Variety Description

Variety used for comparison: 'Yojamestown'

Summary: The leaves of 'Yomarquette' are longer than those of 'Yojamestown'. 'Yomarquette' has leaves with a wedged to obtuse shaped base while 'Yojamestown' has leaves with a truncate to weakly cordate base. The margins of sinus between the lateral lobes of the leaves of 'Yomarquette' are diverging while those of 'Yojamestown' are overlapping. 'Yomarquette' has light colour intensity on the flower head while 'Yojamestown' has medium colour intensity. The flower heads of 'Yomarquette' have a larger diameter than those of 'Yojamestown'. 'Yomarquette' has ray florets which have emarginate tips and are concave to flat in cross section while 'Yojamestown' has ray florets which have dentate tips and are flat to convex in cross section. The secondary colour on the upper side of the ray florets of 'Yomarquette' is blue pink while that of 'Yojamestown' is red purple to blue pink.

Description:

PLANT: year round cultivation for pot production, pinched, spray flowering type, 8 week response group
STEM: green

LEAF: wedged/obtuse base, divergins margins of sinus between lateral lobes, medium green

INFLORESCENCE: flat corymbiform
FLOWER HEAD: double decorative type, chromatic self, purple colour group, light intensity of colour, medium to dense ray florets
RAY FLORET: ligulate, straight to reflexing longitudinal axis of majority, weak curvature, emarginate tip, violet (RHS 75C-D) with weak overlay of diffuse blue pink in stripes to strong overlay of blue pink towards inner florets on upper side, violet (RHS 75B-C) streaked with blue pink (RHS N74C-D) on lower side
DISC: medium yellow before anther dehiscence, yellow-orange at anther dehiscence
DISC FLORETS: enlarged tubular type, massed at center

Origin & Breeding History: 'Yomarquette' originated from a cross pollination made in March 2000 in Salinas, California, United States between the female parent proprietary seedling selection 'YB-6275' and the male parent proprietary seelding selection 'YB-5681'. The new variety was the product of a planned breeding program conducted by the breeder, Mrs. Wendy Bergman. 'Yomarquette' was discovered and selected by the breeder in December 2001 as a single flowering plant within the progeny in Fort Myers, Florida, United States. Selection of 'Yomarquette' was based on plant growth habit, inflorescence form, floret colours, response time, suitability for production and postproduction longevity. Asexual reproduction of the variety by vegetative tip cuttings was first conducted in Fort Myers, Florida, United States in March 2002.

Tests & Trials: Trials for 'Yomarquette' were conducted in Leamington, Ontario, in the fall of 2008. Flowering trials were performed under greehouse conditions similar to those used in commercial chrysanthemum production. Forty unrooted cuttings of both the candidate and reference varieties were directly stuck into 15 cm pots, with 4 cuttings per pot, 10 pots per variety, planted on August 25, 2008. Plants were spaced 30 cm apart. Plants were pinched once prior to short day treatment. All plants had the centre bud removed. Observations and measurements were taken from 10 plants of each variety on November 3, 2008. All colour determinations were made using the 2001 Royal Horticultural Society (RHS) Colour Chart.

Comparison tables for 'Yomarquette' with reference variety 'Yojamestown'

Leaf length (cm)

Flower head diameter (cm)

Colour of upper side of ray floret (RHS)

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Chrysanthemum: 'Yomarquette' (left) with reference variety 'Yojamestown' (right)

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Chrysanthemum: 'Yomarquette' (left) with reference variety 'Yojamestown' (right)