Keipawhihis

Petunia

Denomination: 'Keipawhihis'
Trade name: Surfinia Patio White
Botanical Name: Petunia ×hybrida
Applicant/Holder: Keisei Rose Nurseries Inc.
1-12-1 Oshiage
Sumida-ku
Tokyo
131-0045
Japan

Suntory Flowers Limited
Administrative Division
4-17-5 Shiba, Minato-ku
Tokyo
108-0014
Japan
Tel: +81-3-5419-1382
Breeder: Shinya Miyano, Chiba-ken, Japan
Kazunari Iwaki, Shiga, Japan
Agent in Canada: BioFlora Inc.
38723 Fingal Line
R.R. #1
St. Thomas, Ontario
N5P 3S5
Canada
Tel: 519-631-6241
Application Date: 2005-03-29
Application Number: 05-4651
Grant of Rights Date: 2007-08-17
Certificate Number: 2834
Date rights surrendered: 2010-08-17

Variety Description

Varieties used for comparison: 'Revolution White' (Surfinia White) and 'Keipamipihas' (Surfinia Patio Misty Pink)

Summary: 'Keipawhihis' has a more upright growth habit than 'Revolution White' and a less upright growth habit than 'Keipamipihas'. 'Keipawhihis' has a shorter, narrower sepal than 'Revolution White'. 'Keipawhihis' has a linear sepal shape with a straight margin while 'Revolution White' has an elliptic sepal shape with an undulating margin. 'Keipawhihis' has a smaller flower diameter than 'Revolution White'. 'Keipawhihis' has a white corolla while 'Keipamipihas' has a white and violet corolla. 'Keipawhihis' has weaker undulation of the corolla margin than 'Revolution White' and stronger undulation than 'Keipamipihas'. 'Keipawhihis' has less conspicuous veins in the corolla tube than 'Revolution White'.

Description:

PLANT: semi-upright growth habit, medium height, narrow to medium width

SHOOTS: thin, short to medium length, absent to very weak anthocyanin colouration

LEAVES: medium length, medium to wide, ovate, broad acute and obtuse apex, no variegation, medium green on upper side, no blistering, petiole medium to long

SEPALS: very short to short, narrow width, linear, no anthocyanin colouration

FLOWERS: short pedicel, single corolla, small diameter, trumpet shape
COROLLA: moderate lobing, white on upper and lower side, veins purple and green, veins very weak in conspicuousness, margin with medium undulation
COROLLA TUBE: short to medium, yellow green on inner side, veins very weak in conspicuousness
ANTHERS: yellowish-white before pollen dehiscence, yellow after dehiscence.

Origin & Breeding History: 'Keipawhihis' originated from a controlled cross between unnamed breeding lines, made in September 2001, at Sawara-shi, Chiba-ken, Japan. In April 2002, 100 seedlings were obtained from the cross and grown in pots in the glasshouse for evaluation. In July 2002, one seedling was selected based on its growth habit, flower size and flower colour.

Tests & Trials: The tests and trials for 'Keipawhihis' 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 'Keipawhihis' with reference varieties 'Revolution White' and 'Keipamipihas'

Petiole length (mm)

  'Keipawhihis' 'Revolution White' 'Keipamipihas'
mean 10.9 8.8 2.8
std. deviation 3.87 2.15 0.79

Sepal length (mm)

  'Keipawhihis' 'Revolution White' 'Keipamipihas'
mean 9.9 19.5 13.3
std. deviation 0.88 1.35 0.95

Sepal width (mm)

  'Keipawhihis' 'Revolution White' 'Keipamipihas'
mean 2.4 6.2 2.2
std. deviation 0.52 0.63 0.42

Flower diameter (cm)

  'Keipawhihis' 'Revolution White' 'Keipamipihas'
mean 4.3 6.5 3.6
std. deviation 0.23 0.33 0.17

Colour of corolla (RHS)

  'Keipawhihis' 'Revolution White' 'Keipamipihas'
upper side white white 75A-B
lower side white white 75B-C

Secondary colour on corolla (RHS)

  'Keipawhihis' 'Revolution White' 'Keipamipihas'
inner side n/a n/a N155B and 155B

Colour of corolla tube (RHS)

  'Keipawhihis' 'Revolution White' 'Keipamipihas'
inner side 154D 160A 155B

Click on image for larger view
Keipawhihis
Petunia: 'Keipawhihis' (left) with reference varieties 'Revolution White' (centre) and 'Keipamipihas' (right)

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