Tra Pewhit

Osteospermum

Denomination: 'Tra Pewhit'
Trade name: Tradewinds Pearl White
Botanical Name: Osteospermum ecklonis
Applicant/Holder: Goldsmith Seeds Europe B.V.
Cornelis Kuinweg 28A
1619 PE
Andijk
1619 PE
Netherlands
Breeder: Pim Kaagman, Goldsmith Seeds Europe B.V., 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: 2007-01-09
Application Number: 07-5713
Grant of Rights Date: 2008-05-29
Certificate Number: 3220
Date rights surrendered: 2009-05-25

Variety Description

Varieties used for comparison: 'Sunny Henry' and 'Osjamvan' (Jamboana Vanilla)

Summary: 'Tra Pewhit' differs from the reference varieties, 'Sunny Henry' and 'Osjamvan', mainly in plant height, main colour of the ray florets on the lower side and disc diameter before dehiscence. The plants of 'Tra Pewhit' are medium to tall whereas they are tall in 'Sunny Henry' and short to medium in height in 'Osjamvan'. The main colour of the lower side of the ray florets of 'Tra Pewhit' are light yellow with white along the margins whereas they are yellow with white along the margins in 'Sunny Henry' and faint light yellow with white at the base in 'Osjamvan'. Before dehiscence, the disc diameter of 'Tra Pewhit' is smaller than that of both reference varieties.

Description:

PLANT: erect shoots with absent to very weak anthocyanin, medium to tall in height

LEAF: short to medium in length, narrow to medium in width, obovate in shape, weak incisions of margins, no variegation, medium green on the upper side

FLOWER: medium length peduncle, one or two complete ray floret whorls, medium inflorescence diameter
RAY FLORET: short to medium length, medium to wide, obovate in shape, with a rounded - dentate apex, no reflexing, inward rolling of longitudinal margins absent, horizontal attitude to upwards with age, white on the upper side, light yellow with white along the margin on the lower side
DISC: white before dehiscence

Origin & Breeding History: 'Tra Pewhit' originated from the cross using a proprietary seedling, 'OY-85-9', as the female parent, with another proprietary seedling, 'OZ-185-1', as the male parent, conducted in June 1999. The resultant seed was sown in the greenhouse in August 2003. In January 2004, a single plant from the progeny was selected for flower qualtiy and colour, and compact growth habit.

Tests & Trials: The trials for 'Tra Pewhit' were conducted in a polyhouse at BioFlora in St. Thomas, Ontario, during the spring of 2007. 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 'Tra Pewhit' with reference varieties 'Sunny Henry' and 'Osjamvan'

Plant height (cm)

  'Tra Pewhit' 'Sunny Henry' 'Osjamvan'
mean 31.1 36.1 24.4
std. deviation 2.40 2.22 1.76

Main colour of ray florets (RHS)

  'Tra Pewhit' 'Sunny Henry' 'Osjamvan'
lower side 10B-A with white along the margin as dark as 12A with white along the margin faint yellow 4D with white at base

Disc diameter before dehiscence (cm)

  'Tra Pewhit' 'Sunny Henry' 'Osjamvan'
mean 0.9 1.1 1.3
std. deviation 0.11 0.19 0.08

Click on image for larger view
Tra Pewhit
Osteospermum: 'Tra Pewhit' (left) with reference varieties 'Sunny Henry' (centre) and 'Osjamvan' (right)

Click on image for larger view
Tra Pewhit
Osteospermum: 'Tra Pewhit' (left) with reference varieties 'Sunny Henry' (centre) and 'Osjamvan' (right)

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