Denomination: 'SYEP22866'
Trade name: Sigma
Botanical Name: Euphorbia pulcherrima
Applicant/Holder: Syngenta Crop Protection AG
Schwarzwaldallee 215
Breeder: Katharina Zerr, Syngenta Seeds GmbH, Hillscheid, Germany
Agent in Canada: BioFlora Inc.
38723 Fingal Line
R.R. #1
St. Thomas, Ontario
N5P 3S5
Tel: 519-631-6241
Application Date: 2010-03-08
Application Number: 10-6883
Grant of Rights Date: 2014-07-11
Certificate Number: 4844
Grant of Rights Termination Date: 2032-07-11

Variety Description

Variety used for comparison: 'Prestige'

Summary: The plants of 'SYEP22866' are narrower than those of 'Prestige'. The middle third of the stems of 'SYEP22866' have anthocyanin colouration ranging from weak to medium whereas those of 'Prestige' have very weak anthocyanin colouration. The deepest sinus on the leaf blades of 'SYEP22866' is very shallow whereas that on 'Prestige' is a medium depth. The petioles and largest bract of 'SYEP22866' are shorter than those of 'Prestige'. The bracts of 'SYEP22866' have weak rugosity between the veins whereas those of 'Prestige' have absent or very weak rugosity.


PLANT: branching present
STEM: medium intensity of green colour on middle third, anthocyanin colouration on middle third ranging from weak to medium, absent or weak anthocyanin colouration on upper third

LEAF: ovate, wedge-shaped to rounded base, one colour on upper side, strong intensity of green colour, green and red main vein on upper side, none or few lobes, deepest sinus is absent or very shallow, absent or weak curvature of main vein
PETIOLE: absent to very weak intensity of green colour on upper side, strong anthocyanin colouration on upper side, medium anthocyanin colouration on lower side
TRANSITIONAL LEAVES: few partly bract-coloured leaf blades, very few fully bract-coloured leaf blades, absent or weak lobing, absent or weak curvature along main vein of fully bract-coloured leaf blade

BRACT: many, ovate largest bract, one colour on upper side, upper side dark purple red (RHS 53B), no marbling on upper side, no spotting on upper side, lower side red (RHS 47B), no folding along the main vein, no twisting, weak rugosity between veins
CYME: early opening of the cyathia
CYATHIUM GLADE: medium to large, yellow, no deformation

Origin & Breeding History: 'SYEP22866' originated from a cross pollination conducted in Hillscheid, Germany in June 2003 between the female parent proprietary seedling identified as 10049 and pollen from the male parent proprietary seedling identified as 298. The resultant seed was collected and sown in a greenhouse in Hillscheid, Germany in February 2004. A single plant was selected by the breeder in December 2004 based on bract colour, inflorescence size, early flowering, foliage colour, branch strength and plant habit. The new variety was tested in trials at greenhouses in Hillscheid, Germany, Enkhuzein, The Netherlands and Boulder, Colorado, USA, in April 2007. Further evaluations were conducted in greenhouse trials in the fall of 2008 and 2009.

Tests & Trials: Trials for 'SYEP22866' were conducted in a greenhouse in St. Catharines, Ontario. Trials included 25 plants each of the candidate and reference variety. All plants were grown from rooted cuttings and transplanted into 15 cm pots on July 30, 2012. Pots were spaced 27 cm apart, from the pot centre. Observations and measurements were taken from 10 plants of each variety on December 4, 2012. All colour determinations were made using the 2007 Royal Horticultural Society (RHS) Colour Chart.

Comparison tables for 'SYEP22866' with reference variety 'Prestige'

Plant width (cm)

  'SYEP22866' 'Prestige'
mean 58.4 66.9
std. deviation 3.26 3.03

Petiole length (cm)

  'SYEP22866' 'Prestige'
mean 5.8 9.1
std. deviation 0.55 0.71

Largest bract length (cm)

  'SYEP22866' 'Prestige'
mean 14.1 17.3
std. deviation 0.69 1.07

Click on image for larger view
Poinsettia: 'SYEP22866' (left) with reference variety 'Prestige' (right)

Click on image for larger view
Poinsettia: 'SYEP22866' (left) with reference variety 'Prestige' (right)

Click on image for larger view
Poinsettia: 'SYEP22866' (left) with reference variety 'Prestige' (right)

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