IBSZ0001

Candytuft

Denomination: 'IBSZ0001'
Trade name: Sunsurfer Early White
Botanical Name: Iberis sempervirens
Applicant/Holder: Syngenta Participations AG
Schwarzwaldallee 215
4058
Basel
Switzerland
Breeder: Henricus G.W. Stemkens, Syngenta Seeds B.V., Enkhuizen, Netherlands
Agent in Canada: BioFlora Inc.
38723 Fingal Line
R.R. #1
St. Thomas, Ontario
N5P 3S5
Canada
Tel: 519-631-6241
Application Date: 2012-06-07
Application Number: 12-7627
Grant of Rights Date: 2015-06-30
Certificate Number: 5056
Grant of Rights Termination Date: 2035-06-30

Variety Description

Variety used for comparison: 'Snowcone'

Summary: The plants of 'IBSZ0001' are dense while the plants of 'Snowcone' are of medium density. The intensity of anthocyanin colouration of the shoot is of medium intensity for 'IBSZ0001' while it is strong for 'Snowcone'. Flowering for 'IBSZ0001' occurs very early and lasts a long time whereas flowering for 'Snowcone' occurs early and lasts for a medium length of time. The inflorescence of 'IBSZ0001' is smaller in diameter than the inflorescence of 'Snowcone'. The arrangement of the petals is predominantly overlapping for 'IBSZ0001' while the petals of 'Snowcone' are predominantly free to touching. The curvature of the petal along the longitudinal axis is recurved for 'IBSZ0001' while it is flat for 'Snowcone'. The petal margin of 'IBSZ0001' has medium strength undulation while the petal margin of 'Snowcone' has weak undulation.

Description:

PLANT: vegetatively propagated perennial, bushy-rounded growth habit, dense, very dense inflorescences
SHOOT: absent or very sparse pubescence, medium intensity of anthocyanin colouration

LEAF BLADE: ranging from linear to lanceolate shape, acute apex, truncate base, entire margin, no variegation, dark green on upper side, no pubescence on upper and lower sides
PETIOLE: absent

FLOWERING: one per growing cycle, very early, long length of time
INFLORESCENCE: racemose corymb type, positioned at terminal location, medium density, flattened apex
FLOWER BUD: round shape, white to whitish yellow
PETAL: mostly overlapping arrangement, recurved along longitudinal axis, medium undulation of margin, white (RHS NN155D) on upper and lower sides, no colour change with age
POLLEN: medium yellow

Origin & Breeding History: 'IBSZ0001' was developed as part of a controlled breeding program by the breeder Henricus Godefridus Wilhelmus Stemkens in Enkhuizen, Netherlands. It originated from a hybrid cross conducted in April 2007 between proprietary lines 'K1007-1' as the female parent, and 'K1077-1' as the male parent. The resultant seed was sown in a greenhouse in August 2007. In March 2008, a single plant from the progeny was selected for its flower colour and plant growth habit and named 'IBSZ0001'.

Tests & Trials: The comparative trial of 'IBSZ0001' was conducted in a polyhouse during the winter and spring of 2014 at BioFlora Inc. in St. Thomas, Ontario. The trial included a total of 20 plants each of the candidate and reference variety. All plants were grown from rooted cuttings and transplanted into 15.2 cm pots on August 15, 2013. Observations and measurements were taken from 10 plants or parts of plants of each variety on February 28, 2014 except for the leaf blade measurements which were taken on April 24, 2014. All colour determinations were made using the 2007 Royal Horticultural Society (RHS) Colour Chart.


Comparison table for 'IBSZ0001' with reference variety 'Snowcone'

Inflorescence diameter (cm)

  'IBSZ0001' 'Snowcone'
mean 2.8 3.2
std. deviation 0.16 0.19

Click on image for larger view
IBSZ0001
Candytuft: 'IBSZ0001' (left) with reference variety 'Snowcone' (right)

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IBSZ0001
Candytuft: 'IBSZ0001' (left) with reference variety 'Snowcone' (right)

Click on image for larger view
IBSZ0001
Candytuft: 'IBSZ0001' (left) with reference variety 'Snowcone' (right)

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