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Daisy Duke

Shasta Daisy

Denomination: 'Daisy Duke'
Trade name: Daisy May
Botanical Name: Leucanthemum ×superbum
Applicant/Holder: Horvath, Brent
10702 Seaman Road
Hebron, Illinois
60034
United States of America
Breeder: Brent Horvath, Hebron, United States of America
Agent in Canada: BioFlora Inc.
38723 Fingal Line
R.R. #1
St. Thomas, Ontario
N5P 3S5
Canada
Tel: 519-317-7511
Application Date: 2010-01-22
Application Number: 10-6808
Grant of Rights Date: 2012-08-23
Certificate Number: 4376
Grant of Rights Termination Date: 2030-08-23

Variety Description

Variety used for comparison: 'Snowcap'

Summary: The plants of 'Daisy Duke' are taller in height than those of 'Snowcap'. The ray florets of 'Daisy Duke' are longer than those of 'Snowcap'. The ray florets of 'Daisy Duke' differ in colour from those of 'Showcap'. 'Daisy Duke' begins flowering earlier than 'Snowcap'.

Description:

PLANT: upright bushy growth habit

LEAF: alternate and basal arrangement, linear to oblanceolate and elliptic-spatulate on basal leaves, acute apex, cordate and attenuate base, serrate to dentate margin, medium green on upper side, medium pubescence on upper side

FLOWERING: very early flowering
PEDUNCLE: medium to thick
FLOWER: single type
RAY FLORET: average of 32-36 per flower, straight to reflexing, dentate index, length to width ratio 3:1, upper side is white (RHS NN155B) and white (RHS NN155B) with age, lower side is white (RHS NN155C)
FLORET DISC: yellow (RHS 12A) before anther dehiscence, yellow (RHS 12B) after anther dehiscence

Origin & Breeding History: 'Daisy Duke' originated from an open pollination between the female parent 'Hebron Hardy' and the pollen from an unknown male parent in 2005, in Hebron, Illinois, USA. The new cultivar was selected from the resultant seedlings based on flower abundance, flower appearance, and plant size.

Tests & Trials: Trials for 'Daisy Duke' were conducted in a polyhouse during the spring of 2011, in St. Thomas, Ontario. The trial included a total of 15 plants each of the candidate and reference varieties. All plants were grown from rooted cuttings transplanted into 1 gallon containers on April 15, 2011. Most observations and measurements were taken from 10 plants of each variety on June 15, 2011. All colour determinations were made using the 2007 Royal Horticultural Society (RHS) Colour Chart.


Comparison tables for 'Daisy Duke' with reference variety 'Snowcap'

Plant height (cm)

  'Daisy Duke' 'Snowcap'
mean 34.5 22.6
standard deviation 2.25 1.83

Ray floret length (cm)

  'Daisy Duke' 'Snowcap'
mean 3.0 2.5
standard deviation 0.19 0.11

Colour of ray floret (RHS)

  'Daisy Duke' 'Snowcap'
upper side NN155B N155A-B

Click on image for larger view
Daisy Duke
Shasta Daisy: 'Daisy Duke' (left) with the reference variety 'Snow Cap' (right)

Click on image for larger view
Daisy Duke
Shasta Daisy: 'Daisy Duke' (left) with the reference variety 'Snow Cap' (right)

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