Denomination: 'Dektoshka'
Botanical Name: Chrysanthemum ×morifolium
Applicant/Holder: Dekker Breeding B.V.
Julianaweg 6A
1711 RP
Breeder: Cornelis W. Dekker, Dekker Breeding B.V., Hensbroek, Netherlands
Agent in Canada: BioFlora Inc.
38723 Fingal Line
R.R. #1
St. Thomas, Ontario
N5P 3S5
Tel: 519-631-6241
Application Date: 2010-06-21
Application Number: 10-7009
Grant of Rights Date: 2011-09-22
Certificate Number: 4187
Grant of Rights Termination Date: 2029-09-22

Variety Description


PLANT: 7.5 week response group, non-bushy, tall to very tall, green stem

LEAF: small stipule, moderately upwards attitude of petiole with horizontal blade attitude, medium to long petiole relative to leaf length, medium length leaf including petiole, narrow to medium width, medium to high length/width ratio, short to medium length terminal lobe relative to leaf length, rounded base, medium green with weak glossiness of upper surface, few to medium number of shallow to medium depth indentations
LOWEST LATERAL SINUS: medium to deep, converging margins

INFLORESCENCE: deeply domed form, narrow to medium width, medium angle between primary lateral shoot and stem, upright to semi-upright attitude of lateral flower heads, medium number of flower heads per stem
FLOWER BUD: light blue pink (nearest to RHS 62D but much more grey and not a solid colour) just before opening
FLOWER HEAD: semi-double, medium to large diameter, medium height, long peduncle, few rows of ray florets, medium to many ray florets
RAY FLORETS: ligulate type only, moderately ascending attitude of basal part, upper surface ribbed, very short to short corolla tube, weakly convex profile in cross section at widest point, weakly involute rolling of margin at basal quarter, medium length, medium to broad in width, low to medium length/width ratio, mamillate tip, two colours on inner surface, mainly purple (RHS 72B but paler and not a solid colour) with solid or nearly solid white (RHS N155D) at basal quarter on inner surface, white (RHS N155B becoming tinged with purple in the distal quarter) on outer surface
LONGITUDINAL AXIS OF RAY FLORET: reflexing at distal quarter to distal half, weak curvature
DISC FLORETS: daisy type, large diameter, medium diameter relative to head diameter, slightly domed profile in cross section, green with no dark spot at centre before anther dehiscence, medium yellow at anther dehiscence

Origin & Breeding History: 'Dektoshka' arose from crossing the proprietary seedling '04.88886.01' as the female parent with the proprietary seedling number '03.7793.05' as the male parent which was conducted in October, 2005 in Hensbroek, the Netherlands. It was selected from the resultant progeny in May, 2006 based on unique flower colour, flower size and good vase life. Asexual reproduction of the variety by cuttings was first conducted in Hensbroek in April, 2006 and was designated for commercialization in April, 2007.

Tests & Trials: The detailed description of 'Dektoshka' is based on the UPOV report of Technical Examination, application number 2008/1889, purchased from the Community Plant Variety Office in Angers, France. The trials were conducted by The National Institute of Agricultural Botany (NIAB) in Cambridge, United Kingdom, in 2009. Colour determinations were made using the 2007 Royal Horticultural Society (RHS) Colour Chart, 5th edition.

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Chrysanthemum: 'Dektoshka'

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