Yospirit Lake


Denomination: 'Yospirit Lake'
Trade name: Spirit Lake
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: 2006-09-26
Application Number: 06-5581
Grant of Rights Date: 2008-11-24
Certificate Number: 3414
Date rights surrendered: 2014-10-03

Variety Description

Variety used for comparison: 'Yofort Wayne' (Fort Wayne)

Summary: 'Yospirit Lake' has a longer lowest lateral sinus of the leaf than 'Yofort Wayne'. 'Yospirit Lake' has a larger flower head diameter and longer ray floret than 'Yofort Wayne'. The main colour on the upper side of the ray floret of 'Yospirit Lake' is darker purple than that of 'Yofort Wayne'.


PLANT: year round cultivation for pot production, spray flowering type, 8 week response group
STEM: green, no anthocyanin colouration

LEAF: medium green, 1.6:1 length/width ratio, obtuse base, diverging margins of sinus between lateral lobes

INFLORESCENCE: corymbiform
FLOWER HEAD: semi-double daisy type, bi-coloured, purple and white colour group, moderately dense ray florets
RAY FLORET: ligulate, longitudinal axis of majority is straight with a slightly recurved tip, flat to convex in cross-section, weakly dentate tip, upper side is purple with white secondary colour at base and extending towards apex along margins, lower side is violet with white base
DISC: yellow green before anther dehiscence, medium yellow at anther dehiscence
DISC FLORET: enlarged tubular type

Origin & Breeding History: 'Yospirit Lake' 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 originated from a cross between proprietary Chrysanthemum seedling selection designated 'YB-4859' as the female parent and another proprietary Chrysanthemum seedling selection designated 'YB-A5305' as the male parent. This cross was conducted by the breeder in March 2003, in Salinas, California, USA. 'Yospirit Lake' was discovered and selected in December 2003, as a single flowering plant among the progeny of the stated cross 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 suitability for production. Asexual reproduction of 'Yospirit Lake' by vegetative tip cuttings was first conducted in Fort Myers, Florida, USA in March 2004.

Tests & Trials: Trials for 'Yospirit Lake' 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 'Yospirit Lake' with reference variety 'Yofort Wayne'

Length of lowest lateral sinus of leaf (cm)

  'Yospirit Lake' 'Yofort Wayne'
mean 1.8 0.9
std. deviation 0.17 0.23

Flower head diameter (cm)

  'Yospirit Lake' 'Yofort Wayne'
mean 8.2 6.2
std. deviation 0.59 0.41

Ray floret length (cm)

  'Yospirit Lake' 'Yofort Wayne'
mean 4.8 3.0
std. deviation 0.51 0.23

Colour of upper side of ray floret (RHS)

  'Yospirit Lake' 'Yofort Wayne'
main / background 61A 64A-B
secondary / over-colour 155D 155A

Click on image for larger view
Yospirit Lake
Chrysanthemum: 'Yospirit Lake' (left) with reference variety 'Yofort Wayne' (right)

Click on image for larger view
Yospirit Lake
Chrysanthemum: 'Yospirit Lake' (left) with reference variety 'Yofort Wayne' (right)

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