Swestrena
| Denomination: | 'Swestrena' |
|---|---|
| Trade name: | Magalena Ultra Sweet Stripe |
| Botanical Name: | Glandularia ×hybrida |
| Applicant/Holder: |
Syngenta Crop Protection AG Rosentalstrasse 67 Basel CH-4058 Switzerland |
| Breeder: |
Har 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: 519-317-7511 |
| Application Date: | 2005-11-29 |
| Application Number: | 05-5187 |
| Grant of Rights Date: | 2007-11-28 |
| Certificate Number: | 3046 |
| Date rights surrendered: | 2008-12-18 |
Variety Description
Variety used for comparison: 'Lan Lav Star' (Lanai Lavender Star)
Summary: The main colour on the upper side of the corolla of 'Swestrena' is white and the secondary colour is purple red, whereas the main colour of the corolla of 'Lan Lav Star' is light blue violet and the secondary colour is violet.'Swestrena' has a smaller corolla than 'Lan Lav Star'.
Description:
PLANT: upright to semi-upright, tall, narrow to medium in width
STEM: medium green, dense pubescence, absent to very weak anthocyanin
LEAF: long, medium in width
LEAF BLADE: lanceolate, cuneate base, serrate margin, light green, no anthocyanin
PETIOLE: short
INFLORESCENCE: medium in diameter, broad ovate in profile
CALYX: absence of anthocyanin
COROLLA: medium to large in diameter, two-coloured, star shaped, main colour white, secondary colour purple red, weakly fading with age
COROLLA LOBES: free, mostly incurved, moderate undulation of margin
COROLLA TUBE: protruding hair light green to yellow in colour
COROLLA EYE ZONE: present on one lobe, mostly green-yellow.
Origin & Breeding History: 'Swestrena' was discovered and developed in Enkhuizen, The Netherlands, by the breeder Har Stemkens, an employee of Syngenta Seeds B.V. The new variety was discovered in 2003 as a mutation of verbena 'Arbena', and the new variety was selected based on a unique flower colour pattern. The variety has been propagated asexually through vegetative cuttings over a two year period.
Tests & Trials: The tests and trials for 'Swestrena' were conducted in a polyhouse during the spring and summer of 2006, at BioFlora Inc. in St. Thomas, Ontario. The trial included 15 plants of each variety. Rooted cuttings were transplanted into 10 cm pots on April 18, 2006. Observations and measurements were taken from 10 plants of each variety on June 17 to 19, 2006. All colour measurements were made using the 2001 Royal Horticultural Society (RHS) Colour Chart.
Comparison tables for 'Swestrena' with reference variety 'Lan Lav Star'
Plant width (cm)
| 'Swestrena' | 'Lan Lav Star' | |
|---|---|---|
| mean | 41.7 | 52.0 |
| std. deviation | 4.98 | 7.02 |
Leaf blade width (mm)
| 'Swestrena' | 'Lan Lav Star' | |
|---|---|---|
| mean | 19.5 | 27.1 |
| std. deviation | 2.17 | 2.88 |
Petiole length (mm)
| 'Swestrena' | 'Lan Lav Star' | |
|---|---|---|
| mean | 4.1 | 6.8 |
| std. deviation | 1.20 | 1.14 |
Corolla diameter (mm)
| 'Swestrena' | 'Lan Lav Star' | |
|---|---|---|
| mean | 20.8 | 23.2 |
| std. deviation | 0.63 | 0.92 |
Colour on upper side of corolla (RHS)
| 'Swestrena' | 'Lan Lav Star' | |
|---|---|---|
| main colour | 155B | 76D |
| secundary colour | 58B | N81C |
Click on image for larger view
Verbena: 'Swestrena' (left) with reference variety 'Lan Lav Star' (right)
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