Kakegawa S90

Petunia × Calibrachoa

Variety Description

Varieties used for comparison: 'Dancalipet' (Calitunia Purple) and 'Kakegawa S89' (SuperCal Neon Rose)

Summary: 'Kakegawa S90' has larger leaves and longer petioles than 'Kakegawa S89'. The flowers of 'Kakegawa S90' are larger in diameter with longer pedicels than both reference varieties. The flowers of 'Kakegawa S90' are funnelform while those of 'Dancalipet' are salverform. The upper side of the corolla for 'Kakegawa S90' is purple while it is lighter purple with purple red tones for both reference varieties. The veins on the upper side of the corolla are purple black for 'Kakegawa S90' while they are red purple for 'Kakegawa S89'. 'Kakegawa S90' has stronger conspicuousness of the veins on the inner side of the corolla tube than 'Kakegawa S89.

Description:

PLANT: semi-upright growth habit
SHOOT: thin on lower third, absent or very weak anthocyanin colouration at base

LEAF: narrow elliptic, narrow acute apex, no variegation, dark green on upper side, no blistering

SEPAL: linear, no anthocyanin colouration
FLOWER: single type, funnelform
COROLLA: medium degree of lobing, two coloured
COROLLA LOBE: truncate to emarginate apex, strong undulation of reflexed margin, purple on upper and lower sides, violet on upper side at area of transition to corolla tube, moderately conspicuous purple black veins on upper side
COROLLA TUBE: yellow on inner side, strongly conspicuous veins on inner side
ANTHER: yellowish white before pollen dehiscence, yellow after pollen dehiscence

Origin & Breeding History: 'Kakegawa S90' was developed by the breeder, Akinobu Ui, an employee of Sakata Seed Corporation, Japan. It originated from a hybridization between a proprietary hybrid Calibrachoa line and a proprietary hybrid Petunia line made in May 2003 in Kakegawa, Japan. In December 2003, 12 intergeneric hybrid plantlets were transplanted to soil-less media for greenhouse culture and acclimatization. In March 2004, 10 of the 12 plantlets were vegetatively propagated to produce rooted cuttings. In April 2004, these were transplanted to an open field and evaluated until July 2004 for flower colour and plant growth habit. 'Kakegawa S90' was selected in August 2004 based on its medium to large flower size, purple flower colour and semi-creeping plant growth habit. Ten (10) cuttings of 'Kakegawa S90' were further evaluated in open field trials from September to November 2004. These trials were used to confirm that the distinctive characteristics of 'Kakegawa S90' are fixed and stable.

Tests & Trials: Trials for 'Kakegawa S90' were conducted in a poly-house during the summer of 2007 at BioFlora Inc. in St. Thomas, Ontario. The trial included a total of fifteen (15) plants per variety. All plants were grown from rooted cuttings and transplanted into 11.5 cm pots on July 10, 2007. Observations and measurements were taken from ten (10) plants or parts of plants on August 30, 2007. All colour determinations were made using the 2001 Royal Horticultural Society (RHS) Colour Chart.

Comparison tables for 'Kakegawa S90' with reference varieties 'Dancalipet' and 'Kakegawa S89'

Leaf length (cm)

Leaf width (cm)

Petiole length (mm)

Flower diameter (cm)

Colour of corolla (RHS)

Secondary colour of corolla (RHS)

Colour of corolla tube (RHS)

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Petunia × Calibrachoa: 'Kakegawa S90' (left) with reference variety 'Dancalipet' (right)

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Petunia × Calibrachoa: 'Kakegawa S90' (left) with reference variety 'Dancalipet' (right)

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Petunia × Calibrachoa: 'Kakegawa S90' (left) with reference variety 'Dancalipet' (right)