Oslawit

Osteospermum

Denomination: 'Oslawit'
Trade name: Jamboana Landscape White
Botanical Name: Osteospermum ecklonis
Applicant/Holder: Syngenta Crop Protection AG
Schwarzwaldallee 215
Basel
4058
Switzerland
Breeder: Ánna M.W.P. Houbraken, 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: 2005-10-14
Application Number: 06-5595
Date Withdrawn: 2009-09-23

Variety Description

Variety used for comparison: 'Osnewi' (Jamboana White)

Summary: 'Oslawit' has a less erect growth habit than 'Osnewi'. 'Oslawit' has a wider flower head diameter and longer ray floret length than 'Osnewi'. The lower side of the ray floret is blue-violet for 'Oslawit' while it is light violet to brown violet for 'Osnewi'.

Description:

PLANT SHOOTS: semi-erect to horizontal, very short to short

LEAF: short, very narrow to narrow width, shallow margin indentations, no variegation, medium to dark green on upper side

FLOWER: paracorolla absent, flower head wide in diameter
RAY FLORET: long, narrow to medium width, obtuse apex, no inward rolling of longitudinal margin, white on upper side aging to light violet (RHS 75D) at the apical zone, blue violet on middle zone on lower side
DISC: narrow to medium diameter, light blue before dehiscence

Origin & Breeding History: 'Oslawit' originated from a controlled cross made in July 2001, in Enkhuizen, The Netherlands. The female parent was identified as E0156-1 and the male parent was a mix of pollen from unidentified Osteospermum ecklonis plants. The new variety was selected from the resultant progeny as a single plant in June 2002, based on criteria for plant habit and flower colour. Asexual reproduction by cuttings was first conducted in June 2002, in Enkhuizen, The Netherlands.

Tests & Trials: The trials for 'Oslawit' were conducted in a polyhouse at BioFlora in St. Thomas, Ontario, during the spring of 2008. The trials included 15 plants of each variety grown from rooted cuttings and transplanted into 11 cm pots on March 18, 2008. Observations and measurements were taken from 10 plants of each variety on June 3, 2008. All colour characteristics were determined using the 2001 Royal Horticultural Society (RHS) colour chart.


Comparison tables for 'Oslawit' with reference variety 'Osnewi'

Shoot length (cm)

  'Oslawit' 'Osnewi'
mean 9.7 15.8
std. deviation 2.14 0.92

Flower head diameter (cm)

  'Oslawit' 'Osnewi'
mean 8.3 2.4
std. deviation 0.22 0.17

Ray floret length (cm)

  'Oslawit' 'Osnewi'
mean 3.3 2.4
std. deviation 0.21 0.19

Click on image for larger view
Oslawit
Osteospermum: 'Oslawit' (left) with reference variety 'Osnewi' (right)

Click on image for larger view
Oslawit
Osteospermum: 'Oslawit' (left) with reference variety 'Osnewi' (right)

Click on image for larger view
Oslawit
Osteospermum: 'Oslawit' (left) with reference variety 'Osnewi' (right)

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