Sunsurf Ejiusa

Petunia

Variety Description

Variety used for comparison: 'Sunsurf Kuritora' (Surfinia Bouquet Lemon Improved)

Summary: The plants of 'Sunsurf Ejiusa' are taller than those of 'Sunsurf Kuritora'. The shoots of 'Sunsurf Ejiusa' are longer than those of 'Sunsurf Kuritora'. The leaf blade of 'Sunsurf Ejiusa' is wider than that of 'Sunsurf Kuritora'. The sepal of 'Sunsurf Ejiusa' is larger than that of 'Sunsurf Kuritora'. The flower of 'Sunsurf Ejiusa' is narrower than that of 'Sunsurf Kuritora'. The flower of 'Sunsurf Ejiusa' has a weak degree of undulation while the flower of 'Sunsurf Kuritora' has a strong degree of undulation. The secondary colour of the flower of 'Sunsurf Ejiusa' is dark green to light green at the apex of the margin which fades to lighter green towards the base of the margin while the flower of 'Sunsurf Kuritora' has no secondary colour. The apex of the corolla lobe of 'Sunsurf Ejiusa' is cuspidate while that of 'Sunsurf Kuritora' is rounded. The inner side of the corolla tube of 'Sunsurf Ejiusa' is white with a light green overcolour while it is light yellow with a darker yellow overcolour for 'Sunsurf Kuritora'.

Description:

PLANT: upright

LEAF: elliptic, narrow acute apex, no variegation, medium green, absent or weak blistering

PEDICEL: absent or very weak intensity of anthocyanin colouration
FLOWER: single, funnelform, medium degree of lobing, absent or very shallow incisions of margin, weak degree of undulation, medium conspicuousness of veins, greenish veins, main colour of inner side is white (RHS NN155B), secondary colour of inner side is dark green to light green (RHS 144A-B) at the apex of the margin fading to light green (RHS 144C) towards base of margin, medium sized area of secondary colour
NEWLY OPENED FLOWER: inner side is white (RHS NN155B) with yellower white (RHS 155A) at tip of apex and light green (lighter than RHS 144C) below apex tip
AGED FLOWER: inner side is white (RHS NN155B)
COROLLA LOBE: cuspidate apex
COROLLA TUBE: inner side is white (RHS 155B) with light green (RHS 145D) overcolour, weak conspicuousness of veins on inner side, light green (RHS 144B) veins, outer side is light green (RHS 145D)
ANTHER: yellowish before dehiscence

Origin & Breeding History: 'Sunsurf Ejiusa' originated from a controlled pollination between the female parent 'Px2982-01' and the male parent 'Px3015-03' in July 2008 at the Omi Research and Development Center of Suntory Flowers Ltd. in Higashiomi-shi, Shiga, Japan. 'Sunsurf Ejiusa' was selected in November 2009 based on its growth habit, flower colour and flower size.

Tests & Trials: The comparative trial for 'Sunsurf Ejiusa' was conducted in a polyhouse during the spring of 2014 at BioFlora Inc. in St. Thomas, Ontario. The trial included a total of 20 plants each of the candidate and reference variety. All plants were grown from rooted cuttings and transplanted into 15.2 cm pots on April 11, 2014. Observations and measurements were taken from 10 plants of each variety on May 23, 2014. All colour determinations were made using the 2007 Royal Horticultural Society (RHS) Colour Chart.

Comparison tables for 'Sunsurf Ejiusa' with reference variety 'Sunsurf Kuritora'

Plant height (cm)

Shoot length (cm)

Leaf width (cm)

Sepal length (cm)

Sepal width (cm)

Flower width (cm)

Secondary colour of flower (RHS)

Colour of corolla tube (RHS)

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Petunia: 'Sunsurf Ejiusa' (left) with reference variety 'Sunsurf Kuritora' (right)

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Petunia: 'Sunsurf Ejiusa' (left) with reference variety 'Sunsurf Kuritora' (right)

Click on image for larger view

Petunia: 'Sunsurf Ejiusa' (left) with reference variety 'Sunsurf Kuritora' (right)