AKIV571-1

Verbena

Denomination: 'AKIV571-1'
Trade name: Superbena Royale Chambray
Botanical Name: Glandularia ×hybrida
Applicant/Holder: Plant 21 LLC
32149 Aquaduct Road
Bonsall, California
92003
United States of America
Breeder: Akiko Takahashi, Plant 21 LLC, Shiga, Japan
Agent in Canada: BioFlora Inc.
38723 Fingal Line
R.R. #1
St. Thomas, Ontario
N5P 3S5
Canada
Tel: 519-631-6241
Application Date: 2010-02-25
Application Number: 10-6874
Grant of Rights Date: 2012-08-23
Certificate Number: 4384
Grant of Rights Termination Date: 2030-08-23

Variety Description

Varieties used for comparison: 'KLEVP06349' (Fuego Denim Blue) and 'AKIV572-1' (Superbena Royale Silverdust)

Summary: The plants of 'AKIV571-1' are narrower than the plants of 'KLEVP06349'. The stem of 'AKIV571-1' has absent to weak anthocyanin colouration while the stem of 'KLEVP06349' has medium anthocyanin. The leaf of 'AKIV571-1' is shorter and narrower than the leaf of 'KLEVP06349'. The inflorescence of 'AKIV571-1' is smaller in diameter than the inflorescence of 'KLEVP06349'. The corolla of 'AKIV571-1' is smaller in diameter than the corolla of 'KLEVP06349'. The upper side of the corolla lobe is a darker blue violet for 'AKIV571-1' than for 'AKIV572-1'.

Description:

PLANT: semi-upright to creeping growth habit
STEM: absent to weak anthocyanin colouration on middle third

LEAF: ovate, lobed, crenate margin incisions, upper side medium green with no anthocyanin colouration, truncate base

INFLORESCENCE: broad ovate in profile
CAYLX: anthocyanin colouration present in teeth only
COROLLA TUBE: hairs purple at tip
COROLLA LOBES: not touching, longitudinal axis straight to recurved, weak margin undulation, one colour on upper side, even colour pattern, upper side violet (RHS N87A-B) when newly opened, blue violet (RHS N88B) when fully opened, ages to violet blue to light violet blue (RHS 92A-B), colour strongly fading with age
COROLLA EYE: medium size, white with purple at base.

Origin & Breeding History: The variety 'AKIV571-1' originated from a controlled cross made in Higashiomi, Shiga, Japan on May 14, 2007. The female parent was a proprietary seedling designated 07V424-03 and the male parent was an unnamed seedling selected from the seed variety 'Nioimurasaki'. The new verbena was selected as a single plant from the resultant progeny on June 11, 2008, in Bonsall, California, USA. The variety was selected based on criteria for good branching characteristics, plant growth habit and disease resistance. The variety was first propagated by vegetative cuttings on June 12, 2008 in Bonsall, California, USA.

Tests & Trials: Trials for 'AKIV571-1' were conducted in a polyhouse during the summer of 2011, in St. Thomas, Ontario. The trial included a total of 15 plants each of the candidate and reference varieties. All plants were grown from rooted cuttings and transplanted into 15 cm shallow pots on May 2, 2011. Observations and measurements were taken from 10 plants of each variety on June 23, 2011. All colour determinations were made using the 2007 Royal Horticultural Society (RHS) Colour Chart.


Comparison tables for 'AKIV571-1' with reference varieties 'KLEVP06349' and 'AKIV572-1'

Plant width (cm)

  'AKIV571-1' 'KLEVP06349' 'AKIV572-1'
mean 46.5 69.7 47.7
std. deviation 2.69 4.54 4.08

Leaf length (mm)

  'AKIV571-1' 'KLEVP06349' 'AKIV572-1'
mean 36.3 50.8 40.8
std. deviation 2.87 3.52 2.04

Leaf width (mm)

  'AKIV571-1' 'KLEVP06349' 'AKIV572-1'
mean 22.2 34.4 18.9
std. deviation 1.75 2.95 1.91

Inflorescence diameter (cm)

  'AKIV571-1' 'KLEVP06349' 'AKIV572-1'
mean 4.2 6.4 4.9
std. deviation 0.15 0.26 0.39

Corolla diameter (mm)

  'AKIV571-1' 'KLEVP06349' 'AKIV572-1'
mean 15.1 21.0 15.6
std. deviation 1.20 0.67 1.17

Colour of upper side of corolla (RHS)

  'AKIV571-1' 'KLEVP06349' 'AKIV572-1'
newly opened N87A-B N87B N88C
fully opened N88B, aging to 92A-B N88C N88D, aging to 91B

Click on image for larger view
AKIV571-1
Verbena: 'AKIV571-1' (left) with reference varieties 'KLEVP06349' (centre) and 'AKIV572-1' (right)

Click on image for larger view
AKIV571-1
Verbena: 'AKIV571-1' (left) with reference varieties 'KLEVP06349' (centre) and 'AKIV572-1' (right)

Click on image for larger view
AKIV571-1
Verbena: 'AKIV571-1' (left) with reference varieties 'KLEVP06349' (centre) and 'AKIV572-1' (right)

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