Denomination: 'Yoottawa'
Trade name: Ottawa
Botanical Name: Chrysanthemum
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: 2004-04-02
Application Number: 04-4162
Grant of Rights Date: 2007-11-22
Certificate Number: 3019
Date rights surrendered: 2014-10-03

Variety Description

Variety used for comparison: 'Surf'

Summary: 'Yoottawa' has a shorter ray floret blade and longer ray floret corolla tube than 'Surf'. The shape of the ray floret in cross-section is concave for 'Yoottawa' while it is flat to convex for 'Surf'.


PLANT: year round cultivation for pot production, disbud flowering type, 7 week response group, short to medium height
STEM: no anthocyanin colouration

LEAF: short to medium length, narrow, narrow to broad wedged base
LATERAL LOBE: diverging margins of sinus
LOWER LOBE: short to medium length, shallow to medium deep sinus

FLOWER HEAD: double, decorative sub-type, self-coloured, white colour group, medium to large diameter, no bracts among ray florets
RAY FLORET: short blade with medium length corolla tube, weakly reflexed longitudinal axis of majority, concave in cross-section, acute to emarginate tip, white on upper and lower sides

Origin & Breeding History: 'Yoottawa' is a product from 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 made in January 2000 in Salinas, California, USA between a proprietary Chrysanthemum seedling selection designated 'YB-A0238' as the female parent and another proprietary Chrysanthemum seedling selection designated 'YB-A0161' as the male parent. 'Yoottawa' was selected in November 2000 in Alva, Florida, USA based on its uniform plant growth habit, desirable inflorescence form and floret colours, fast response time and excellent post production longevity.

Tests & Trials: Trials for 'Yoottawa' were conducted in the fall of 2006 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 were disbudded by removal of lateral buds. Measured characteristics were based on measurements taken from 10 plants or parts of plants on November 1, 2006. All colour determinations were made using the 2001 Royal Horticulture Society (RHS) Colour Chart.

Comparison tables for 'Yoottawa' with reference variety 'Surf'

Ray floret blade length (cm)

  'Yoottawa' 'Surf'
mean 2.4 3.5
std. deviation 0.18 0.20

Ray floret corolla tube length (cm)

  'Yoottawa' 'Surf'
mean 1.8 0.5
std. deviation 0.26 0.07

Click on image for larger view
Chrysanthemum: 'Yoottawa' (left) with reference variety 'Surf' (right)

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