Denomination: 'Deknadya'
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: 2012-07-16
Application Number: 12-7659
Grant of Rights Date: 2014-05-23
Certificate Number: 4776
Date rights surrendered: 2015-05-11

Variety Description

Variety used for comparison: 'Zanmuspinner'

Summary: The plants of 'Deknadya' are shorter, and have more ray florets per flower head than the plants of 'Zanmuspinner'. The colour of the disc at anther dehiscence is light green for 'Deknadya' while the disc of 'Zanmuspinner' is yellow green.


PLANT: pot chrysanthemum, medium height, non-bushy type, response group 4 (7 weeks) when grown with precise day length control
STEM: green, large stipule

PETIOLE: attitude is moderately upwards, medium length relative to leaf length
LEAF: attitude is moderately downwards, medium to long including petiole, medium width, medium to high length to width ratio, length of terminal lobe relative to leaf length is medium to long, lowest lateral sinus is medium depth, margins of lowest lateral sinus are overlapping, predominant shape of base is rounded, weak glossiness on upper side, medium green on upper side, few indentations of margin, shallow to medium depth indentations of margin

FLOWER BUD: outer side is yellow green (nearest to RHS 1C, but darker) just before opening
FLOWER HEAD: semi-double, anemone type, medium diameter in disbudded plants, very low height in disbudded plants, short to medium length peduncle, few rows of ray florets
RAY FLORET: very many per flower head, two types, predominate type is spatulate, secondary type is quilled, attitude of basal part is moderately ascending to horizontal, ribbed on upper surface, long to very long corolla tube, profile of corolla tube is triangular, strongly concave profile in cross-section at widest point, spatulate type has weakly revolute margins along distal quarter, longitudinal axis has medium strength of incurving along extreme tip to distal quarter, medium to long, narrow, very high length to width ratio, dentate tip, inner side is white (RHS NN155B), colour of outer side is similar to colour of inner side
DISC: medium to large diameter, medium to large diameter relative to flower head diameter, dark green (nearest to RHS 144A, but slightly more yellow) before anther dehiscence, light green (nearest to N144D, but slightly more yellow) at anther dehiscence
DISC FLORET: enlarged tubular type, medium length, light green (nearest to 145C, but more yellow) with green at the extreme tip

Origin & Breeding History: 'Deknadya' was bred and developed by the breeder, Cornelis W. Dekker, in Hensbroek, Netherlands, as part of a planned breeding program. It originated from a hybrid cross conducted in October 2007 between the proprietary seedling designated '06.51467.01' as the female parent, and the proprietary seedling designated '05.39833.03' as the male parent. 'Deknadya' was selected from the resultant progeny in May 2008 based on its unique flower, and large, green disc. Asexual reproduction of 'Deknadya' was first conducted in June 2008.

Tests & Trials: The detailed description of 'Deknadya' is based on the UPOV report of Technical Examination, application number 2010/2841, purchased from the Community Plant Variety Office in Angers, France. The trials were conducted by the National Institute of Agricultural Botany in Cambridge, United Kingdom, in 2011. Colour determinations were made using the 2007 Royal Horticultural Society (RHS) Colour Chart.

Comparison table for 'Deknadya' with reference variety 'Zanmuspinner'

Colour of disc (RHS)

  'Deknadya' 'Zanmuspinner'
at anther dehiscence nearest to N144D, but slightly more yellow 2D

Click on image for larger view
Chrysanthemum: 'Deknadya'

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