|Trade name:||Supertunia Mini Purple Improved|
|Botanical Name:||Petunia ×hybrida|
Plant 21 LLC
32149 Aquaduct Road
United States of America
Ushio Sakazaki, Shiga, Japan
|Agent in Canada:||
38723 Fingal Line
St. Thomas, Ontario
|Grant of Rights Date:||2007-08-17|
|Grant of Rights Termination Date:||2025-08-17|
Variety used for comparison: 'Sunripami' (Surfinia Baby Purple)
Summary: 'USTUNI6504' has a smaller flower diameter than 'Sunripami'. 'USTUNI6504' has more conspicuous veins on the upper side of the corolla lobe than 'Sunripami'.
PLANT: semi upright to creeping growth habit, short, medium to wide
SHOOTS: medium thickness, short to medium length, absent to very weak anthocyanin colouration
LEAVES: medium length and width, elliptic, broad acute apex, no variegation, medium to dark green on upper side, no blistering, petiole short in length
SEPALS: short to medium length, narrow, linear, no anthocyanin colouration
FLOWERS: short to medium length pedicel, single corolla, very small to small diameter, salverform shape
COROLLA: moderate lobing, red purple on upper side, blue pink to violet on lower side, veins purple and moderately conspicuous, margin with weak undulation
COROLLA TUBE: short to medium length, violet on inner side, veins strong to very strongly conspicuous
ANTHERS: light grey before and after pollen dehiscence.
Origin & Breeding History: 'USTUNI6504' originated from a controlled cross between a seed raised variety with red flowers as the female parent and a wild Petunia species as the male parent. The cross was made by the breeder, Ushio Sakazaki, in Shiga, Japan on April 25, 2001. The seed from the cross was collected and sent to Gensingen, Germany for further breeding and selection. The new petunia was selected as a single plant from the resultant progeny on June 18, 2002, in Gensingen, Germany. Selection was based on improved branching characteristics and growth habit.
Tests & Trials: The tests and trials for 'USTUNI6504' were conducted in a polyhouse at BioFlora in St. Thomas, Ontario in the spring of 2006. The trials included 15 plants of each variety. Rooted cuttings were transplanted into six inch pots on April 17, 2006. Observations and measurements were taken from 10 plants of each variety. All colour measurements were made using the 2001 Royal Horticultural Society Colour Chart.
Comparison tables for 'USTUNI6504' with reference variety 'Sunripami'
Corolla diameter (cm)
Colour of corolla (RHS)
|upper side||N74A (redder than)||N74A (redder than)|
|lower side||71D, N78D towards corolla tube||72C, N78D towards corolla tube|
Colour of corolla tube (RHS)
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