Power Bronze


Denomination: 'Power Bronze'
Botanical Name: Chrysanthemum
Applicant/Holder: Willy's Greenhouses Ltd.
159 Scott Street
Niagara-on-the-Lake, Ontario
L0S 1J0
Breeder: Simon van Spronsen, Niagara-on-the-Lake, Ontario
Agent in Canada: Variety Rights Management
475 County Road 18
R.R. #2
Oxford Station, Ontario
K0G 1T0
Tel: 613-258-9015
Application Date: 2008-04-04
Application Number: 08-6276
Grant of Rights Date: 2010-02-22
Certificate Number: 3787
Grant of Rights Termination Date: 2028-02-22

Variety Description

Varieties used for comparison: 'Apricot Cherie' and 'Power Yellow'

Summary: The inner side of the ray floret is light yellow with purple red at the base for 'Power Bronze' while it is orange brown to brown red for 'Apricot Cherie' and yellow for 'Power Yellow'. The outer side of the ray floret is purple red and light yellow for 'Power Bronze' while it is orange brown for 'Apricot Cherie' and brown red and yellow for 'Power Yellow'.


PLANT: year round cultivation for pot production, spray flowering type, 8 week response group, very short to short height, medium to many primary lateral shoots
STEM: short to medium length internode, medium thickness, no anthocyanin colouration, medium to strong strength

LEAF: ascending to horizontal attitude, medium to long, medium width, small length to width ratio, dark green on upper side, broad wedge base shape, short to medium length lower lobe, diverging margins of sinus between lateral lobes, terminal lobe with teeth present, no secondary lobes on terminal lobe

INFLORESCENCE: cylindrical form, no secondary lateral flower heads, medium number of flower heads showing colour when terminal head is fully expanded
FLOWER HEAD: single, daisy type, self coloured, yellow-bronze colour group, medium intensity of colour, medium diameter, peduncle medium in thickness
RAY FLORETS: at right angle to floral axis, medium to high number, bracts present among florets, outer florets medium to long, medium in width, small length to width ratio, straight along longitudinal axis, no pubescence on outer side, tip rounded with notch, outer side dark purple red when florets are expanding, outer side purple to purple red with light yellow when fully expanded, inner side yellow orange with purple red at base
DISC: medium diameter, yellow green before anther dehiscence, yellow at anther dehiscence, tubular, type 4 distribution, short disc florets.

Origin & Breeding History: 'Power Bronze' was discovered as a naturally occurring chance mutation of the variety 'Apricot Cherie'. It was selected for its improved flower colour in July of 2007 at Niagara on the Lake, Ontario. Asexual reproduction by stem cuttings was first conducted in July 2007.

Tests & Trials: Trials for 'Power Bronze' were conducted at Niagara on the Lake, Ontario in the Fall of 2008. The trial consisted of 15 plants of each variety, grown in 12.5 cm pots in the greenhouse. The plants were spaced 15 cm apart. Observations and measurements were taken on 10 plants of each variety. Colours were determined using the 2001 Royal Horticultural Society (RHS) Colour Chart.

Comparison table for 'Power Bronze' with reference varieties 'Apricot Cherie' and 'Power Yellow'

Colour of ray floret (RHS)

  'Power Bronze' 'Apricot Cherie' 'Power Yellow'
outer side - newly opened 60B-C 186B-C 180C-D
outer side - mature floret 59C-D and 11B N170D 180D and 7D
inner side - mature floret 11A and 60C-D N170D and 181D 7C-D

Click on image for larger view
Power Bronze
Chrysanthemum: 'Power Bronze' (left) with reference variety 'Apricot Cherie' (right)

Click on image for larger view
Power Bronze
Chrysanthemum: 'Power Bronze' (right) with reference variety 'Power Yellow' (left)

Date modified: