OSTZ0003

Osteospermum

Denomination: 'OSTZ0003'
Trade name: Tradewinds Yellow Improved
Botanical Name: Osteospermum ecklonis
Applicant/Holder: Syngenta Crop Protection AG
Schwarzwaldallee 215
Basel
4058
Switzerland
Breeder: Pim Kaagman, Andijk, Netherlands
Agent in Canada: BioFlora Inc.
38723 Fingal Line
R.R. #1
St. Thomas, Ontario
N5P 3S5
Canada
Tel: 519-631-6241
Application Date: 2011-11-01
Application Number: 11-7413
Grant of Rights Date: 2013-09-24
Certificate Number: 4629
Date rights surrendered: 2014-09-24

Variety Description

Variety used for comparison: 'Tra Yel' (Tradewinds Yellow)

Summary: The shape of the apex of the ray floret is obtuse for 'OSTZ0003' while it is acute for 'Tra Yel'. The colour on the upper side of the ray floret from a young flower head is light yellow overlaid with yellow stripes for 'OSTZ0003' while it is slightly darker yellow with a darker yellow apex for 'Tra Yel'. The colour on the upper side of the ray floret is light yellow overlaid with yellow stripes at the apex for 'OSTZ0003' while it is slightly darker yellow with a darker yellow apex for 'Tra Yel'. The colour of the basal zone of the ray floret is dull violet for 'OSTZ0003' whereas it is dull blue pink for 'Tra Yel'.

Description:

PLANT: attitude of shoots is erect

LEAF: shallow to medium depth indentations of margin, no variegation, medium green on upper side

YOUNG FLOWER HEAD: upper side of ray floret is light yellow (RHS 6D) overlaid with yellow (RHS 6C) stripes
FLOWER HEAD: no paracorolla, daisy type
RAY FLORET: obtuse apex, inward rolling of longitudinal margins is absent on all flowers, basal zone is violet (RHS 75B, but more dull), one colour on upper side, main colour on upper side is light yellow (RHS 6D) overlaid with yellow to light yellow (RHS 6C-D) stripes at apex, colour distribution on the upper side is even, colour group of middle zone of lower side is yellow with brown stripe
DISC: dark blue

Origin & Breeding History: 'OSTZ0003' was bred and developed by the breeder, Theodore C.M. van Kleinwee, in Enkhuizen, Netherlands, as part of a controlled breeding program. It originated from an open pollinated cross between a proprietary line with bronze-yellow flower colour designated '98-10' as the female parent, and an unknown male parent. The cross was conducted in August 2007. The resultant seed was collected and sown in a greenhouse in Enkhuizen in March 2008. In August 2008, a single plant was selected using flower colour and plant growth habit as the selection criteria. This plant was named 'OSTZ0003'.

Tests & Trials: Trials for 'OSTZ0003' were conducted in a polyhouse during the spring of 2012 at BioFlora Inc. in St. Thomas, Ontario. The trials included a total of 20 plants each of the candidate and reference varieties. All plants were grown from rooted cuttings and transplanted into 11.5 cm pots on April 23, 2012. Observations and measurements were taken from 10 plants of each variety on June 11, 2012. All colour determinations were made using the 2007 Royal Horticulture Society (RHS) Colour Charts.


Comparison tables for 'OSTZ0003' with reference variety 'Tra Yel'

Colour of ray floret from young flower head (RHS)

  'OSTZ0003' 'Tra Yel'
upper side 6D overlaid with stripes of 6C 9C-D with 9C at apex

Colour of basal zone of ray floret (RHS)

  'OSTZ0003' 'Tra Yel'
upper side closest to 75B (more dull) closest to 70C (more dull)

Colour of ray floret (RHS)

  'OSTZ0003' 'Tra Yel'
upper side 6D overlaid with 6C-D stripes at apex 9C-D with 9C apex

Click on image for larger view
OSTZ0003
Osteospermum: 'OSTZ0003' (left) with reference variety 'Tra Yel' (right)

Click on image for larger view
OSTZ0003
Osteospermum: 'OSTZ0003' (left) with reference variety 'Tra Yel' (right)

Click on image for larger view
OSTZ0003
Osteospermum: 'OSTZ0003' (left) with reference variety 'Tra Yel' (right)

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