Visulvena
| Denomination: | 'Visulvena' |
|---|---|
| Trade name: | Ipanema Silver |
| 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: | 05-5188 |
| Grant of Rights Date: | 2007-11-28 |
| Certificate Number: | 3047 |
| Date rights surrendered: | 2008-12-18 |
Variety Description
Varieties used for comparison: 'Vertis' (Babylon White) and 'Suntapilavepi' (Tapien Lavender Pink)
Summary: Plants of 'Visulvena' have wider leaves than plants of 'Suntapilavepi'. The calyx of 'Visulvena' has more anthocyanin colouration than that of 'Vertis'. The main colour on the upper side of the corolla of 'Visulvena' is light blue violet, whereas it is white for 'Vertis' and violet for 'Suntapilavepi'.
Description:
PLANT: semi-upright to creeping, short to medium in height, medium in width
STEM: light to medium green, moderate pubescence, absent to very weak anthocyanin
LEAF: medium in length, narrow to medium in width
LEAF BLADE: ovate to rhombic, cuneate base, dissected with serrate margin, dark green, no anthocyanin
PETIOLE: medium to long
INFLORESCENCE: very small to small diameter, cylindrical in profile
CALYX: presence of anthocyanin on teeth only
COROLLA: small to medium in diameter, one-coloured, slightly streaking with age, light blue violet, weakly fading with age
COROLLA LOBES: free, straight to recurved, weak undulation of margin
COROLLA TUBE: protruding hair white in colour
COROLLA EYE ZONE: small, white.
Origin & Breeding History: 'Visulvena' was developed in Enkhuizen, The Netherlands, by the breeder Har Stemkens, an employee of Syngenta Seeds B.V. The new variety originated from a cross between the female parent 'X845-1' and the male parent 'W723-3'. A plant was selected from the resulting progeny in 2002. The variety has been propagated asexually through vegetative cuttings for over two years.
Tests & Trials: The tests and trials for 'Visulvena' 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 20, 2006. All colour measurements were made using the 2001 Royal Horticultural Society (RHS) Colour Chart.
Comparison tables for 'Visulvena' with reference varieties 'Vertis' and 'Suntapilavepi'
Plant height (cm)
| 'Visulvena' | 'Vertis' | 'Suntapilavepi' | |
|---|---|---|---|
| mean | 11.2 | 19.5 | 7.5 |
| std. deviation | 2.30 | 2.74 | 1.25 |
Leaf blade length (mm)
| 'Visulvena' | 'Vertis' | 'Suntapilavepi' | |
|---|---|---|---|
| mean | 31.5 | 29.7 | 21.2 |
| std. deviation | 5.02 | 2.45 | 4.02 |
Leaf blade width (mm)
| 'Visulvena' | 'Vertis' | 'Suntapilavepi' | |
|---|---|---|---|
| mean | 18.0 | 19.9 | 12.9 |
| std. deviation | 4.24 | 1.97 | 3.11 |
Petiole length (mm)
| 'Visulvena' | 'Vertis' | 'Suntapilavepi' | |
|---|---|---|---|
| mean | 9.9 | 8.7 | 5.6 |
| std. deviation | 1.66 | 1.34 | 1.71 |
Inflorescence diameter (cm)
| 'Visulvena' | 'Vertis' | 'Suntapilavepi' | |
|---|---|---|---|
| mean | 3.6 | 4.7 | 3.8 |
| std. deviation | 0.27 | 0.33 | 0.29 |
Corolla diameter (mm)
| 'Visulvena' | 'Vertis' | 'Suntapilavepi' | |
|---|---|---|---|
| mean | 16.9 | 16.3 | 14.9 |
| std. deviation | 0.74 | 0.67 | 0.74 |
Colour on upper side of corolla (RHS)
| 'Visulvena' | 'Vertis' | 'Suntapilavepi' | |
|---|---|---|---|
| main colour | 76C | white | lighter than 77D, aging to 76D |
| secondary colour | N/A | N/A | N82B |
Click on image for larger view
Verbena: 'Visulvena' (left) with reference varieties 'Vertis' (centre) and 'Suntapilavepi' (right)
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