Denomination: 'DISZ0001'
Trade name: Darla Red Improved
Botanical Name: Diascia barberae
Applicant/Holder: Syngenta Crop Protection AG
Schwarzwaldallee 215
Breeder: Marnix de Kroon, Syngenta Seeds B.V., Enkhuizen, Netherlands
Agent in Canada: BioFlora Inc.
38723 Fingal Line
R.R. #1
St. Thomas, Ontario
N5P 3S5
Tel: 519-631-6241
Application Date: 2010-12-24
Application Number: 10-7137
Date Withdrawn: 2013-09-09

Variety Description

Varieties used for comparison: 'Diastured' (Flying Colors Red Improved) and 'Codiusre' (Sun Chimes Red)

Summary: The plant of 'DISZ0001' is shorter than the plant of 'Diastured' and is dense while the reference varieties have medium plant density. The leaf of 'DISZ0001' is longer than the leaf of 'Diastured'. The upper side of the leaf blade is dark green for 'DISZ0001' while the leaf of 'Diastured' is medium green and the leaf of 'Codiusre' is light to medium green. The corolla lobe of 'DISZ0001' has no trichomal elaiophores while 'Diastured' has dense trichomal elaiophores. The spur on the corolla of 'DISZ0001' has medium curvature and is pointing downwards while the spur on the corolla of 'Diastured' has strong curvature and is pointing inwards.


PLANT: upright to spreading growth habit, dense
STEM: no anthocyanin colouration

LEAF: acute apex, cordate base, medium glossiness, no variegation, dark green on upper side

PEDICEL: small angle relative to peduncle, absent or very weak anthocyanin colouration
COROLLA: dark pink red (RHS 53D) on upper side
LATERAL LOBES: absent or weak reflexing
LOWER COROLLA LOBE: as long as broad, absent or weak incurving, weak undulation of margin
COROLLA WINDOW: medium yellow
SPUR: medium length, brown purple (RHS 184C) with darker brown purple (RHS 184A) at tip, medium curvature, tip pointing downwards.

Origin & Breeding History: The variety 'DISZ0001' originated from a controlled cross made in May 2006 at Enkhuizen, Netherlands. The female parent was a red flowered proprietary seedling, designated H0026-1 and the male parent was a red flowered proprietary seedling, designated D29. The resultant seed was sown in a greenhouse in February 2007. In May 2007, a single plant was selected from the progeny, based on criteria for flower colour, plant habit and production characteristics.

Tests & Trials: Trials for 'DISZ0001' were conducted in a polyhouse during the summer of 2012 in St. Thomas, Ontario. The trial included a total of 15 plants each of the candidate and reference variety. All plants were grown from rooted cuttings and transplanted into 11 cm pots on April 24, 2012. Observations and measurements were taken from 10 plants of each variety on June 26, 2012. All colour determinations were made using the 2007 Royal Horticultural Society (RHS) Colour Chart.

Comparison tables for 'DISZ0001' with reference varieties 'Diastured' and 'Codiusre'

Plant height (cm)

  'DISZ0001' 'Diastured' 'Codiusre'
mean 19.9 28.9 20.4
std. deviation 1.55 2.33 2.88

Leaf length (cm)

  'DISZ0001' 'Diastured' 'Codiusre'
mean 2.8 2.0 2.8
std. deviation 0.33 0.15 0.27

Colour of corolla (RHS)

  'DISZ0001' 'Diastured' 'Codiusre'
upper side 53D 51A 53D (duller than)

Click on image for larger view
Diascia: 'DISZ0001' (left) with reference varieties 'Diastured' (centre) and 'Codiusre' (right)

Click on image for larger view
Diascia: 'DISZ0001' (left) with reference varieties 'Diastured' (centre) and 'Codiusre' (right)

Click on image for larger view
Diascia: 'DISZ0001' (left) with reference varieties 'Diastured' (centre) and 'Codiusre' (right)

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