Sunvioki

Viola

Variety Description

Variety used for comparison: 'Penny Yellow'

Summary: 'Sunvioki' has a more spreading growth habit than 'Penny Yellow'. 'Sunvioki' has a shorter plant height and wider plant width than 'Penny Yellow'; 'Sunvioki' has a shorter leaf blade length and lighter green leaves than 'Penny Yellow'. 'Sunvioki' has pubescence on the peduncle and sepal while 'Penny Yellow' has no pubescence. 'Sunvioki' has a narrower flower width than 'Penny Yellow'. 'Sunvioki' has slightly different flower colour and has no markings on the petals while 'Penny Yellow' has very dark brown, striped markings. 'Sunvioki' has medium to dense pubescence on the spur while 'Penny Yellow' has no pubescence.

Description:

'Sunvioki' has an intermediate to spreading growth habit. The leaf blade is ovate in shape with an obtuse shaped apex, a cuneate base and crenate margin. The upper side of the leaf blade is light green in colour and has weak glossiness. There is moderately dense pubescence on the leaf.

The peduncle has moderate pubescence. The sepal is lanceolate in shape and has an acute apex. The sepal is light green in colour and has dense pubescence. The upper, lateral and lower petals are yellow in colour. There are no markings on the petals. The hairs at the throat are cream in colour and the spur is yellow-green with a greyed blue spot at the tip.

Origin & Breeding History: 'Sunvioki' originated from a cross made in April 2000, at the Omi R&D Center, Suntory Flowers Ltd., in Shiga-ken, Japan. The female parent was a breeding line named '9V-39a' and the male parent was the variety 'Alpine Sun'. Seeds obtained from the cross were sown in August 2000 and from this planting, 20 seedlings were obtained. From the 20 seedlings, 3 seedlings were selected in view of highly spreading growth habit and yellow petals. The selected seedlings were grown and tested during potting and bedding trials from October 2001. From the 3 seedlings one plant was selected for its long blooming period.

Tests & Trials: 'Sunvioki' was tested in a polyhouse during the spring of 2005, in St. Thomas, Ontario. The trial included 15 plants of the candidate and reference varieties. Rooted cuttings were transplanted into 11 cm pots on May 9, 2005. All colour measurements were made using the RHS Colour Chart 2001. Measured characteristics were based on ten plant measurements.

Comparison tables for 'Sunvioki' with reference variety 'Penny Yellow'

Plant height (cm)

Plant width (cm)

Leaf blade length (cm)

Flower width (cm)

Colour of upper petal (RHS)

Colour of lateral petal (RHS)