SAXZ0008

Saxifrage

Denomination: 'SAXZ0008'
Trade name: Alpino Early Pink Heart Exp.
Botanical Name: Saxifraga ×arendsii
Applicant/Holder: Syngenta Participations AG
Schwarzwaldallee 215
4058
Basel
Switzerland
Breeder: Henricus G.W. Stemkens, Syngenta Seeds B.V., Enkhuizen, Netherlands
Agent in Canada: BioFlora Inc.
38723 Fingal Line
R.R. #1
St. Thomas, Ontario
N5P 3S5
Canada
Tel: 519-631-6241
Application Date: 2012-06-07
Application Number: 12-7628
Grant of Rights Date: 2015-06-30
Certificate Number: 5058
Grant of Rights Termination Date: 2035-06-30

Variety Description

Variety used for comparison: 'Rockrose' (Alpino Neon Rose)

Summary: When measured to the top of the foliage, the plants of 'SAXZ0008' are shorter than the plants of 'Rockrose'. When the flower is newly open, the colour on the inner side of the corolla of 'SAXZ0008' is purple with darker purple at the base of the petals whereas the corolla of 'Rockrose' is dark purple red. When the flower is intermediate between newly open and mature, the colour on the inner side of the corolla of 'SAXZ0008' is purple to blue pink with blue pink towards the margin and purple with dark purple red at the base of the petals whereas the corolla of 'Rockrose' is purple. When the flower is mature, the colour of the inner side of the corolla of 'SAXZ0008' is blue pink with purple at the base of the petals whereas the corolla of 'Rockrose' is purple. The flower of 'SAXZ0008' has a longer pedicel and a larger petal than the flower of 'Rockrose'. Before dehiscence, the colour of the anther of 'SAXZ0008' is yellow while the anther of 'Rockrose' is reddish. Before anther dehiscence, the colour of the style of 'SAXZ0008' is dark red pink with whitish red at the distal end while the style of 'Rockrose' is whitish green.

Description:

PLANT: erect growth habit, medium density of foliage and flowers

LEAF BLADE: alternate arrangement, simple type, obovate shape, lobed margin, medium to dark green on upper side, weak intensity of anthocyanin colouration when present on tips of lobes
PETIOLE: present

FLOWERING STEM: light green, medium to strong intensity of anthocyanin colouration at distal end towards flower
INFLORESCENCE: cymose panicle type
FLOWER: when newly open, inner side is purple (RHS 64B) with lighter purple (brighter than 61B) tones and purple (RHS 61A-B) towards base of petals; when intermediate between newly open and mature, inner side is purple to blue pink (RHS 64B-C) with blue pink (RHS N66D) towards petal margins and purple (RHS 61A) with dark purple red (RHS 60A) at base of petals; when mature, inner side is blue pink (lighter and more purple than RHS N66D) with purple (RHS 61A) at base of petals
PETAL: five per flower, orbicular shape, rounded apex, both straight and weak reflexing along longitudinal axis of margin
STAMEN: anther is yellow before and after dehiscence, filament is yellow green with some red tones
STYLE: dark red pink with whitish red at distal end before anther dehiscence

Origin & Breeding History: 'SAXZ0008' was developed as part of a controlled breeding program by the breeder, Henricus Godefridus Wilhelmus Stemkens, in Enkhuizen, Netherlands. It originated from a cross conducted in April 2007 between proprietary lines 'J1627-51' as the female parent and 'K0630-1' as the male parent. The resultant seed was sown in a greenhouse in August 2007. In March 2008, a single plant from the progeny was selected for its flower colour and plant growth habit and later named 'SAXZ0008'.

Tests & Trials: The comparative trial of 'SAXZ0008' was conducted in a polyhouse during the spring of 2014 at BioFlora Inc. in St. Thomas, Ontario. The trial included 20 plants of the candidate and reference variety. All plants were grown from rooted cuttings and transplanted into 11.4 cm pots on August 15, 2013. Observations and measurements were taken from 10 plants or parts of plants of the candidate and reference varieties on February 28, 2014. All colour determinations were made using the 2007 Royal Horticultural Society (RHS) Colour Chart.


Comparison tables for 'SAXZ0008' with reference variety 'Rockrose'

Foliage height (cm)

  'SAXZ0008' 'Rockrose'
mean 5.3 6.6
std. deviation 0.75 0.54

Flower diameter (mm)

  'SAXZ0008' 'Rockrose'
mean 20.3 16.1
std. deviation 0.67 0.74

Colour of new flower (RHS)

  'SAXZ0008' 'Rockrose'
inner side of corolla 64B with brighter than 61B tones and 61A-B towards base of petals brighter than 60B

Colour of intermediate flower (between new and mature flowers) (RHS)

  'SAXZ0008' 'Rockrose'
inner side of corolla 64B-C with N66D towards petal margins and 61A with 60A at base of petals lighter than 60C

Colour of mature flower (RHS)

  'SAXZ0008' 'Rockrose'
inner side of corolla lighter and more purple than N66D with 61A at base of petals lighter than 60C (as light as 60D)

Pedicel length (cm)

  'SAXZ0008' 'Rockrose'
mean 4.8 2.2
std. deviation 0.84 1.10

Petal length (mm)

  'SAXZ0008' 'Rockrose'
mean 9.6 7.6
std. deviation 0.52 0.52

Petal width (mm)

  'SAXZ0008' 'Rockrose'
mean 10.6 7.7
std. deviation 0.70 0.48

Click on image for larger view
SAXZ0008
Saxifrage: 'SAXZ0008' (left) with reference variety 'Rockrose' (right)

Click on image for larger view
SAXZ0008
Saxifrage: 'SAXZ0008' (left) with reference variety 'Rockrose' (right)

Click on image for larger view
SAXZ0008
Saxifrage: 'SAXZ0008' (left) with reference variety 'Rockrose' (right)

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