|Trade name:||Sunny Olympia|
|Botanical Name:||Chrysanthemum ×morifolium|
Syngenta Crop Protection AG
Wendy Bergman, Syngenta Flowers, Inc., Alva, United States of America
|Agent in Canada:||
38723 Fingal Line
St. Thomas, Ontario
|Grant of Rights Date:||2008-11-24|
|Date rights surrendered:||2010-01-27|
Variety used for comparison: 'Yomanhattan' (Manhattan)
Summary: 'Sunny Yoolympia' has a taller plant and larger flower head diameter than 'Yomanhattan'. The lowest lateral sinus of the leaf is longer for 'Sunny Yoolympia' than 'Yomanhattan'. The upper and lower sides of the ray floret of 'Sunny Yoolympia' are lighter yellow than those of 'Yomanhattan'.
PLANT: year round cultivation for pot production, spray flowering type, 8 week response group
STEM: green, no anthocyanin colouration
LEAF: dark green, 1.8:1 length/width ratio, obtuse base, parallel to converging margins of sinus between lateral lobes
FLOWER HEAD: double decorative type, self-coloured, light yellow colour group, dense ray florets
RAY FLORET: ligulate, incurved inner ray florets, longitudinal axis of majority is straight with a slightly recurved tip, weak curvature, convex in cross-section, mamillate tip, yellow green on upper side, solid or nearly solid colour pattern on upper side, light yellow on lower side
Origin & Breeding History: 'Sunny Yoolympia' is a product of a planned breeding program conducted by the breeder, Mrs. Wendy R. Bergman, an employee of Yoder Brothers, Inc. in Barberton, Ohio, USA. It is a naturally occurring whole plant mutation of the Chrysanthemum variety 'Yoolympia'. 'Sunny Yoolympia' was discovered and selected on December 1, 2002, as a single flowering plant within a population of 'Yoolympia' plants growing in a controlled environment in Fort Myers, Florida, USA. The selection of this plant was based on its uniform plant growth habit, desirable inflorescence form and floret colours, fast response time and excellent post-production longevity. Asexual reproduction of 'Sunny Yoolympia' by vegetative tip cuttings was first conducted in Fort Myers, Florida, USA in December 2002.
Tests & Trials: Trials for 'Sunny Yoolympia' were conducted in the fall of 2007 at Yoder Canada Ltd. in Leamington, Ontario. They were performed under greenhouse conditions similar to those used in commercial Chrysanthemum production. 40 unrooted cuttings per variety were directly stuck into 15 cm pots with 4 cuttings per pot and 10 pots per variety. The pots were spaced 30 cm apart. The plants were pinched once prior to short day treatment. All plants had the central bud removed. Observations and measurements were taken from 10 plants of each variety on October 29, 2007. All colour determinations were made using the 2001 Royal Horticulture Society (RHS) Colour Chart.
Comparison tables for 'Sunny Yoolympia' with reference variety 'Yomanhattan'
Plant height (cm)
Length of lowest lateral sinus of leaf (cm)
Flower head diameter (cm)
Colour of ray floret (RHS)
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