Osdapur

Osteospermum

Denomination: 'Osdapur'
Trade name: Jamboana Purple Spoon
Botanical Name: Osteospermum ecklonis
Applicant/Holder: Syngenta Seeds B.V.
P.O. Box 2
1600 AA
Enkhuizen
Netherlands
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: 2005-04-29
Application Number: 05-4817
Date Withdrawn: 2006-10-16

Variety Description

Variety used for comparison: 'Aksullo' (Cape Daisy Nasinga Purple)

Summary: Plants of 'Osdapur' have a more erect growth habit, shorter peduncles and shorter leaves than 'Aksullo'. The leaves of 'Osdapur' are obovate with moderate lobing, whereas those of 'Aksullo' are elliptic with weak lobing. 'Osdapur' has less ray florets per inflorescence than 'Aksullo'. The main colour of the upper side of ray florets of 'Osdapur' is lighter than that of 'Aksullo'.

Description:

PLANT: erect shoots with weak anthocyanin

LEAF: obovate in shape, moderate degree of lobing, no variegation, medium to dark green in colour on the upper side

FLOWER: begins early, one complete ray floret whorl, no incomplete ray floret whorls, with dense pubescence on the calyx
RAY FLORET: spatulate in shape, with an obtuse apex, rolling on two thirds of the longitudinal margins, concave to horizontal in attitude, violet on the upper side, red purple on the lower side
DISC: purple before dehiscence

Origin & Breeding History: 'Osdapur' was developed by the breeder Anna M.W.P. Houbraken, an employee of Syngenta Seeds B.V. in Enkhuizen, The Netherlands. The new osteospermum variety originated from a cross between female parent 'E127' and an unknown male parent, conducted in June 2000. The new variety was selected from the progeny in 2001 based on plant habit, early flowering, branching, flower colour and plant vigour. The variety has been propagated by vegetative cuttings since August 2001.

Tests & Trials: The trials for 'Osdapur' were conducted in a polyhouse at BioFlora in St. Thomas, Ontario, during the spring of 2006. The trials included 15 plants of each variety grown from rooted cuttings and transplanted into 11 cm pots. Observations and measurements were taken from 10 plants of each variety. All colour characteristics were determined using the 2001 Royal Horticultural Society (RHS) colour chart.


Comparison tables for 'Osdapur' with reference variety 'Aksullo'

Length of peduncles (cm)

  'Osdapur' 'Aksullo'
mean 4.6 6.7
std. deviation 0.84 0.57

Length of leaf (cm)

  'Osdapur' 'Aksullo'
mean 4.7 6.7
std. deviation 0.48 0.51

Number of ray florets (count)

  'Osdapur' 'Aksullo'
mean 17.4 22.2
std. deviation 2.07 1.30

Colour of ray florets (RHS)

  'Osdapur' 'Aksullo'
upper side N78B with faded stripes N78A with darker stripes

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

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