Denomination: 'Dekantonov'
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: 2013-10-21
Application Number: 13-8134
Grant of Rights Date: 2015-06-30
Certificate Number: 5080
Date rights surrendered: 2017-05-19

Variety Description

Variety used for comparison: 'Snowdon'

Summary: The upper side of the leaf of 'Dekantonov' is medium green while it is dark green for 'Snowdon'. Relative to leaf length, the terminal lobe of 'Dekantonov' is of medium length whereas the terminal lobe of 'Snowdon' is long. The inner side of the ray floret of 'Dekantonov' is pinkish white whereas that of 'Snowdon' is white.


PLANT: tall, non bushy
STEM: green

STIPULE: small
PETIOLE: moderately upwards attitude, short length relative to leaf length
LEAF: moderately downwards attitude, medium length including petiole, medium to broad, low length to width ratio, medium length of terminal lobe relative to leaf length, lowest lateral sinus is deep, margins of lowest lateral sinus are overlapping, cordate base, weak glossiness of upper side, medium green on upper side
LEAF MARGIN: few indentations, shallow indentations

FLOWER BUD: outer side is yellow green (RHS 150D) tinged with pink just before opening
PEDUNCLE: short to medium length
FLOWER: double, medium to large diameter on disbudded plants, medium height on disbudded plants, medium density of ray florets
RAY FLORET: ligulate type, upper surface is ribbed, strongly concave profile in cross section at widest point, margin is weakly revolute along distal three quarters, longitudinal axis is strongly incurved along distal quarter, long to very long, very broad, low to medium length to width ratio, mamillate apex, inner side is white (slightly whiter than RHS N155B), outer side is similar colour to inner side, outer side of inner rows is white (RHS N155C)
FLOWERING PERIOD: begins in 7 weeks with precise daylength control

Origin & Breeding History: 'Dekantonov' originated from a hybrid cross conducted by the breeder, Cornelius W. Dekker of Dekker Breeding B.V., in Hensbroek, Netherlands between the female parent '06.48857.01' and the male parent '06.51083.01' in January 2008. 'Dekantonov' was selected in November 2008 based on its large flower head, strong vigour and good vase life.

Tests & Trials: The detailed description of 'Dekantonov' is based on the UPOV report of Technical Examination, 2012/0427, purchased from the Community Plant Variety Office (CPVO) in Angers, France. The trials were conducted by the National Institute of Agricultural Botany (NIAB) in Cambridge, United Kingdom in 2013. Colour determinations were made using the 2007 Royal Horticultural Society (RHS) Colour Chart.

Comparison table for 'Dekantonov' with reference variety 'Snowdon'

Colour of ray floret (RHS)

  'Dekantonov' 'Snowdon'
inner side slightly whiter than N155B NN155B

Click on image for larger view
Chrysanthemum: 'Dekantonov'

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