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VUKOZ90345

Weigela

Denomination: 'VUKOZ90345'
Trade name: Czechmark Twopink
Botanical Name: Weigela
Applicant/Holder: Spring Meadow Nursery, Inc.
12601 120th Avenue
Grand Haven, Michigan
49417
United States of America
Breeder: Vojtech Benetka, The Czech Republic
Agent in Canada: BioFlora Inc.
38723 Fingal Line
R.R. #1
St. Thomas, Ontario
N5P 3S5
Canada
Tel: 519-317-7511
Application Date: 2017-03-07
Provisional Protection:: 2017-03-07
Application Number: 17-9122
Date Withdrawn: 2022-03-28

Variety Description

Variety used for comparison: 'Bokrasopin' (Sonic Bloom Pink)

Summary: The plants of 'VUKOZ90345' have dense branching whereas the plants of 'Bokrasopin' have medium density branching. In early spring, the anthocyanin colouration on the shoot of 'VUKOZ90345' is of weak to medium intensity whereas the anthocyanin colouration is strong on the shoot of 'Bokrasopin'. The leaf blade of 'VUKOZ90345' is narrower than that of 'Bokrasopin'. The intensity of colouration on the upper side of the leaf blade of 'VUKOZ90345' is dark whereas it is of medium intensity for 'Bokrasopin'. The outer side of the flower bud of 'VUKOZ90345' is dark purple red whereas the flower bud of 'Bokrasopin' is purple brown. The corolla diameter of 'VUKOZ90345' is smaller than that of 'Bokrasopin'. The inner side of the corolla of 'VUKOZ90345' is blue pink whereas the inner side of the corolla of 'Bokrasopin' is purple with purple red tones. The outer side of the corolla tube of 'VUKOZ90345' is purple red with purple red to blue pink towards the base whereas that of 'Bokrasopin' is dark purple red.

Description:

PLANT: strong vigour, erect growth habit, dense branching

ONE-YEAR-OLD SHOOT: light brown
SHOOT: weak to medium intensity of anthocyanin colouration in early spring

LEAF BLADE: elliptic shape, medium to many incisions on margin, weak to medium undulation of margin when newly opened, absent or very weak undulation of margin when fully opened, no variegation, medium degree of blistering
LEAF BLADE (UPPER SIDE): dark intensity of green colour, brown green (RHS N137A) colouration in summer, medium to strong glossiness
LEAF BLADE (LOWER SIDE): dense pubescence along midrib, medium density of pubescence along secondary veins

INFLORESCENCE: compound panicle
FLOWER BUD: dark purple red (RHS 60A)
SEPAL: sparse pubescence, mostly red
COROLLA: single-coloured, campanulate shape
COROLLA LOBE: inner side is blue pink (RHS 63C, 64D), pointed to rounded apex
COROLLA TUBE: outer side is purple red (RHS N57D) with purple red to blue pink (RHS 63A-B) towards base
PISTIL: longer than corolla
OVARY: absent to very sparse to sparse pubescence
TIME OF FLOWERING: first full flowering occurs early in the season, medium length duration of first flowering, second flowering in autumn

Origin & Breeding History: 'VUKOZ90345' originated from a controlled cross conducted by the breeder, Vojtech Benetka, in Pruhonice, Czech Republic in 1990. The cross was made between the female parent variety 'Eva Supreme' and a proprietary male parent plant designated as 87-8-1. From the resulting progeny, 'VUKOZ90345' was selected as a single plant in the summer of 1994 based on its pink flower colour, the number of flowers and reblooming performance. 'VUKOZ90345' was first asexually propagated by softwood cuttings in the summer of 1994 in Pruhonice, Czech Republic.

Tests & Trials: The comparative trial for 'VUKOZ90345' was conducted as an outdoor trial during the spring and summer of 2020 at BioFlora Inc., in St. Thomas, Ontario. The trial included a total of 12 plants each of the candidate and reference variety. The plants were grown from 10 cm long rooted liners and planted into 7.5 litre containers on August 6, 2019. The plants were overwintered in a polyhouse and moved outdoors in late May of 2020 to a drip irrigated field where they were arranged in rows with approximately 1 metre spacing between plants. The observations and measurements were taken from 10 plants or 10 parts of plants of each variety on April 24, 2020. The colour determinations were made using the 2007 Royal Horticultural Society (RHS) Colour Chart.


Comparison tables for 'VUKOZ90345' with reference variety 'Bokrasopin'

Leaf blade width (cm)

  'VUKOZ90345' 'Bokrasopin'
mean 5.0 5.8
std. deviation 0.39 0.50

Colour of flower bud (RHS)

  'VUKOZ90345' 'Bokrasopin'
outer side 60A 185B

Corolla diameter (cm)

  'VUKOZ90345' 'Bokrasopin'
mean 1.9 3.2
std. deviation 0.22 0.29

Colour of corolla (RHS)

  'VUKOZ90345' 'Bokrasopin'
inner side 63C, 64D 61B with 63A tones

Colour of corolla tube (RHS)

  'VUKOZ90345' 'Bokrasopin'
outer side N57D with 63A-B towards base 60B

Click on image for larger view
VUKOZ90345
Weigela: 'VUKOZ90345' (left) with reference variety 'Bokrasopin' (right)

Click on image for larger view
VUKOZ90345
Weigela: 'VUKOZ90345' (left) with reference variety 'Bokrasopin' (right)

Click on image for larger view
VUKOZ90345
Weigela: 'VUKOZ90345' (left) with reference variety 'Bokrasopin' (right)

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