Dala Whit


Denomination: 'Dala Whit'
Trade name: Darla White
Botanical Name: Diascia barberae
Applicant/Holder: Goldsmith Seeds, Inc.
2280 Hecker Pass Highway
P.O. Box 1349
Gilroy, California
United States of America
Breeder: Johanna Jonkers, Goldsmith Seeds Europe B.V., Andijk, Netherlands
Agent in Canada: BioFlora Inc.
38723 Fingal Line
R.R. #1
St. Thomas, Ontario
N5P 3S5
Tel: 519-631-6241
Application Date: 2005-07-19
Application Number: 05-5020
Date Withdrawn: 2006-10-16

Variety Description

Variety used for comparison: 'Balwhiswhit' (Whisper White)

Summary: 'Dala Whit' has smaller, darker green leaves than 'Balwhiswhit'. The internodes of 'Dala Whit' are shorter than those of 'Balwhiswhit'. 'Dala Whit' has shorter corollas and a lower density of trichomal elaiophores on the lower corolla lobe than the reference variety.


PLANT: upright growth habit, medium to tall, medium width, medium branching density, no anthocyanin colouration on stems

LEAF BLADE: dark green, short to medium length, narrow, no variegation, no anthocyanin colouration, shallow cordate base, narrow acute apex, dentate margin (with very shallow incisions), no hairiness

PEDUNCLE: medium to long internodes with short to medium length pedicels
COROLLA: short to medium length, broad width, white inner surface, weak to moderate reflexing of lateral lobes
LOWER LOBE: broader than long, very weak undulation of margin, medium density of pink trichomal elaiophores
COROLLA THROAT: one medium yellow spot
SPUR: pinkish white, moderate curvature

Origin & Breeding History: 'Dala Whit' was developed by the breeder Johanna Jonkers, an employee of Goldsmith Seeds Europe, The Netherlands, as part of a planned breeding program. The variety originated from a selfed cross of 'DSZ-40-6', a proprietary seedling with rose coloured flowers. The cross was made by the breeder in February 2003. The resultant seed was sown in May 2003, and in July 2003 a single plant was selected by the breeder based on leaf colour, flower colour and branching habit.

Tests & Trials: The trials for 'Dala Whit' were conducted in a polyhouse during the spring of 2006 in St. Thomas, Ontario. The trial included a total of 15 plants of each variety. All plants were grown from rooted cuttings transplanted into 11 cm pots on March 31, 2006. Observations and measurements were taken from 10 plants of each variety on May 17, 2006. All colour measurements were made using the 2001 RHS colour chart.

Comparison tables for 'Dala Whit' with reference variety 'Balwhiswhit'

Leaf blade length (cm)

  'Dala Whit' 'Balwhiswhit'
mean 2.1 2.8
std. deviation 0.15 0.30

Leaf blade width (cm)

  'Dala Whit' 'Balwhiswhit'
mean 1.1 1.5
std. deviation 0.15 0.15

Length of corolla (cm)

  'Dala Whit' 'Balwhiswhit'
mean 2.1 2.5
std. deviation 0.08 0.13

Main colour of corolla (RHS)

  'Dala Whit' 'Balwhiswhit'
inner side whiter than 155C whiter than 155C

Colour of spur (RHS)

  'Dala Whit' 'Balwhiswhit'
main 155C 155C

Click on image for larger view
Dala Whit
Diascia: 'Dala Whit' (left) with reference variety 'Balwhiswhit' (right)

Click on image for larger view
Dala Whit
Diascia: 'Dala Whit' (left) with reference variety 'Balwhiswhit' (right)

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