Denomination: 'Yotobago'
Trade name: Tobago
Botanical Name: Chrysanthemum
Applicant/Holder: Syngenta Crop Protection AG
Schwarzwaldallee 215
Breeder: Peter Wain, Southampton, United Kingdom
Agent in Canada: BioFlora Inc.
38723 Fingal Line
R.R. #1
St. Thomas, Ontario
N5P 3S5
Tel: 519-631-6241
Application Date: 2003-09-30
Application Number: 03-3844
Grant of Rights Date: 2007-11-22
Certificate Number: 3016
Date rights surrendered: 2015-11-22

Variety Description

Variety used for comparison: 'Red Delano'

Summary: 'Yotobago' has taller plants with longer and narrower leaves than 'Red Delano'. The ray floret blades of 'Yotobago' are shorter and narrower than those of 'Red Delano'.


PLANT: year round cultivation for pot production, spray flowering type, 8 week response group, tall to very tall height
PRIMARY LATERAL SHOOT: very few to few
STEM: no anthocyanin colouration

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

FLOWER HEAD: double, decorative sub-type, self-coloured, red colour group of strong intensity, small to medium diameter, no bracts among ray florets
RAY FLORET: short blade with short corolla tube, slightly reflexed longitudinal axis of majority, convex in cross-section, dentate tip (2 notches), light yellow brown with dark purple red over colour on upper side, light yellow brown with brown red under colour on lower side

Origin & Breeding History: 'Yotobago' is a product from a planned breeding program conducted by the breeder, Mr. Peter Wain, an employee of Fides Goldstock Breeding in De Lier, The Netherlands. It originated from a cross made in January 1999 in Fareham, Hampshire, United Kingdom between a proprietary Chrysanthemum seedling selection designated 'P101B 4' as the female parent and another proprietary Chrysanthemum seedling selection designated 'RG1' as the male parent. 'Yotobago' was selected by the breeder in September 1999 in Fareham, Hampshire, United Kingdom 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 'Yotobago' 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 had the centre bud removed. 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 'Yotobago' with reference variety 'Red Delano'

Plant height (cm)

  'Yotobago' 'Red Delano'
mean 27.6 22.9
std. deviation 1.78 1.66

Leaf length (cm)

  'Yotobago' 'Red Delano'
mean 8.2 7.2
std. deviation 0.38 0.55

Leaf width (cm)

  'Yotobago' 'Red Delano'
mean 4.2 5.2
std. deviation 0.40 0.36

Ray floret blade length (cm)

  'Yotobago' 'Red Delano'
mean 2.1 3.3
std. deviation 0.11 0.20

Ray floret blade width (cm)

  'Yotobago' 'Red Delano'
mean 0.8 1.3

Ray floret colour (RHS)

  'Yotobago' 'Red Delano'
upper side 161C with N34A over colour 47C & 46A combined in checkerboard pattern
lower side 161C with 181B-C with under colour 186B-D with 185B-C under colour

Click on image for larger view
Chrysanthemum: 'Yotobago' (left) with reference variety 'Red Delano' (right)

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