PERHC18B

Poinsettia

Denomination: 'PERHC18B'
Botanical Name: Euphorbia
Applicant/Holder: Dummen Group B.V.
P.O. Box 26
Coldenhovelaan 6, 2678 PS
De Lier
Netherlands
Breeder: Ruth Kobayashi, Carlsbad, United States of America
Agent in Canada: BioFlora Inc.
38723 Fingal Line
R.R. #1
St. Thomas, Ontario
N5P 3S5
Canada
Tel: 519-631-6241
Application Date: 2009-07-02
Application Number: 09-6674
Date Withdrawn: 2014-05-23

Variety Description

Variety used for comparison: 'Eckcory' (Dulce Rosa)

Summary: The leaves and petioles of 'PERHC18B' are shorter than those of 'Eckcory'. The leaves of 'PERHC18B' are lanceolate with a rounded to truncate base whereas those of 'Eckcory' are elliptic with a wedge-shaped base. The plants of 'PERHC18B' have a medium number of bracts whereas those of 'Eckcory' have many bracts. The largest bract of 'PERHC18B' is smaller than that of 'Eckcory'. The cyme of 'PERHC18B' is narrower than that of 'Eckcory'.

Description:

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

LEAF: lanceolate, rounded to truncate base, one colour on upper side, strong intensity of green colour, only green main vein on upper side, none or few lobes, absent or weak curvature of main vein
PETIOLE: weak intensity of green colour on upper side, absent or very weak anthocyanin colouration on upper side, absent or weak anthocyanin colouration on lower side
TRANSITIONAL LEAVES: few to medium number of partly bract-coloured leaf blades, few to medium number of fully bract-coloured leaf blades, absent or weak lobing, absent or weak curvature along main vein of fully bract-coloured leaf blade

BRACT: medium number, elliptic to obovate largest bract, one colour on upper side, upper side of outer bracts blue pink (RHS 65A) with white (RHS 155D) margin, upper side of middle bracts purple red (RHS N57C-D), upper side of inner bracts between dark pink red and purple red (RHS 53C/N57B), lower side white (RHS 155D) with flush of light blue pink (RHS 65B-C), no folding along the main vein, no twisting, weak rugosity between veins
CYATHIUM GLAND: medium size, yellow, no deformation

Origin & Breeding History: 'PERHC18B' originated at Paul Ecke Ranch, Encinitas, California where it was selected in December 2003. The new variety was selected for its medium pink bract colour and dark green foliage.

Tests & Trials: Trials for 'PERHC18B' 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 24, 2012. Pots were spaced 27 cm apart, from the pot centre. Observations and measurements were taken from 10 plants of each variety on November 21, 2012. All colour determinations were made using the 2007 Royal Horticultural Society (RHS) Colour Chart.


Comparison tables for 'PERHC18B' with reference variety 'Eckcory'

Leaf length (cm)

  'PERHC18B' 'Eckcory'
mean 9.4 12.5
std. deviation 0.58 1.03

Petiole length (cm)

  'PERHC18B' 'Eckcory'
mean 2.5 4.0
std. deviation 0.48 0.50

Largest bract length (cm)

  'PERHC18B' 'Eckcory'
mean 5.9 7.4
std. deviation 0.50 1.10

Cyme width (cm)

  'PERHC18B' 'Eckcory'
mean 3.9 9.6
std. deviation 0.29 1.55

Click on image for larger view
PERHC18B
Poinsettia: 'PERHC18B' (left) with reference variety 'Eckcory' (right)

Click on image for larger view
PERHC18B
Poinsettia: 'PERHC18B' (left) with reference variety 'Eckcory' (right)

Click on image for larger view
PERHC18B
Poinsettia: 'PERHC18B' (left) with reference variety 'Eckcory' (right)

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