Synhen Thefirst

Aster

Denomination: 'Synhen Thefirst'
Trade name: Henry The First
Botanical Name: Aster
Applicant/Holder: Syngenta Crop Protection AG
Schwarzwaldallee 215
Basel
4058
Switzerland
Breeder: Mark Smith, Syngenta Flowers, Inc., Gilroy, United States of America
Agent in Canada: BioFlora Inc.
38723 Fingal Line
R.R. #1
St. Thomas, Ontario
N5P 3S5
Canada
Tel: 519-631-6241
Application Date: 2009-10-30
Application Number: 09-6777
Grant of Rights Date: 2011-12-05
Certificate Number: 4226
Grant of Rights Termination Date: 2029-12-05

Variety Description

Varieties used for comparison: 'Victoria Fanny' and 'Synbul Henfirst' (Blue Henry the First)

Summary: The plants of 'Synhen Thefirst' are medium height while those of 'Victoria Fanny' are tall and those of 'Synbul Henfirst' are short. The plants of 'Synhen Thefirst' are narrower than those of 'Victoria Fanny'. The stem of 'Synhen Thefirst' is thin while that of 'Victoria Fanny' is thick. The stem of 'Synhen Thefirst' has medium hairiness and no anthocyanin colouration on the internode while that of 'Victoria Fanny' has absent to very weak hairness and medium anthocyanin colouration on the internode. The leaf of 'Synhen Thefirst' is smaller than that of 'Victoria Fanny'. The flower head of 'Synhen Thefirst' has a smaller diameter than that of 'Victoria Fanny'. The upper side of the ray floret of 'Synhen Thefirst' is violet while that of 'Synbul Henfirst' is blue violet. The involucre of 'Synhen Thefirst' has a larger diameter than that of 'Victoria Fanny'.

Description:

PLANT: medium height
STEM: semi-erect branch attitude, thin, many branches, medium hairiness, no anthocyanin colouration on internodes, anthocyanin colouration on leaf axil ranging from absent to weak

LEAF: ovate, no dentations, medium green, absent or very weak anthocyanin colouration

FLOWER HEAD: distributed only on the distal part of a side branch of the first order, more than two whorls of ray florets, many ray florets
RAY FLORET: narrow obovate, predominantly ligulate, weakly incurved to straight tip, flat in cross section, rounded apex, dentation of apex present, violet (RHS N87A) on upper side
INVOLUCRE: funnel-shaped, many bracts, adpressed position of bracts
DISC: none

Origin & Breeding History: 'Synhen Thefirst' originated from an open pollinated cross between the female parent variety 'AS04-036' and pollen from an unknown male parent variety. The new variety was bred and developed by the breeder Mark Smith in March 2006 in Alva, Florida, USA. The resultant seed from the cross was sown in a greenhouse in May 2006 in Alva, Florida. The new variety was selected as a single plant from the progeny in October 2006 based on flower colour and plant growth habit.

Tests & Trials: Trials for 'Synhen Thefirst' were conducted in an outdoor irrigated trial during the summer of 2010 in St. Thomas, Ontario. The trial included a total of 15 plants each of the candidate and reference variety. All plants were grown from a single rooted cutting transplanted into a 20 cm standard pot on June 29, 2010. Observations and measurements were taken from 10 plants of the candidate variety and reference variety on September 14, 2010, except the variety 'Victoria Fanny' which was observed on September 29, 2010. All colour determinations were made using the 2007 Royal Horticultural Society (RHS) Colour Chart.


Comparison tables for 'Synhen Thefirst' with reference varieties 'Victoria Fanny' and 'Synbul Henfirst'

Plant height (cm)

  'Synhen Thefirst' 'Victoria Fanny' 'Synbul Henfirst'
mean 25.9 43.6 19.0
std. deviation 2.59 3.37 1.52

Plant width (cm)

  'Synhen Thefirst' 'Victoria Fanny' 'Synbul Henfirst'
mean 42.4 64.2 39.7
std. deviation 3.13 4.57 2.25

Leaf length (cm)

  'Synhen Thefirst' 'Victoria Fanny' 'Synbul Henfirst'
mean 2.2 3.3 2.1
std. deviation 0.14 0.31 0.24

Leaf width (cm)

  'Synhen Thefirst' 'Victoria Fanny' 'Synbul Henfirst'
mean 0.5 0.7 0.5
std. deviation 0.06 0.04 0.04

Flower head diameter (cm)

  'Synhen Thefirst' 'Victoria Fanny' 'Synbul Henfirst'
mean 3.3 3.9 3.2
std. deviation 0.16 0.21 0.13

Colour of ray floret (RHS)

  'Synhen Thefirst' 'Victoria Fanny' 'Synbul Henfirst'
upper side N87A N87A lighter than N88B

Involucre diameter (cm)

  'Synhen Thefirst' 'Victoria Fanny' 'Synbul Henfirst'
mean 1.7 1.2 1.5
std. deviation 0.14 0.12 0.14

Click on image for larger view
Synhen Thefirst
Aster: 'Synhen Thefirst' (left) with reference varieties 'Victoria Fanny' (centre) and 'Synbul Henfirst' (right)

Click on image for larger view
Synhen Thefirst
Aster: 'Synhen Thefirst' (left) with reference varieties 'Victoria Fanny' (centre) and 'Synbul Henfirst' (right)

Click on image for larger view
Synhen Thefirst
Aster: 'Synhen Thefirst' (left) with reference varieties 'Victoria Fanny' (centre) and 'Synbul Henfirst' (right)

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