SAKIMP021

Impatiens

Denomination: 'SAKIMP021'
Trade name: SunPatiens Vigorous Pink
Botanical Name: Impatiens
Applicant/Holder: Sakata Seed Corporation
2-7-1 Nakamachidai
Tsuzuki-Ku
Yokohama
224-0041
Japan
Breeder: Moriya Kawashima, Sakata Seed Corporation, Nagano, Japan
Michiyoshi Fuyama, Sakata Seed Corporation, Shizuoka, Japan
Agent in Canada: BioFlora Inc.
38723 Fingal Line
R.R. #1
St. Thomas, Ontario
N5P 3S5
Canada
Tel: 519-631-6241
Application Date: 2010-04-30
Application Number: 10-6950
Grant of Rights Date: 2011-08-19
Certificate Number: 4165
Date rights surrendered: 2014-08-19

Variety Description

Variety used for comparison: 'SAKIMP006' (SunPatiens Lavender)

Summary: The upper third of the shoot of 'SAKIMP021' has weak anthocyanin colouration while the shoot of 'SAKIMP006' has strong anthocyanin. The lower side of the leaf blade of 'SAKIMP021' has absent or very weak anthocyanin colouration on the midrib and veins while the leaf blade of 'SAKIMP006' has strong anthocyanin on the midrib and medium anthocyanin on the veins. The flower diameter is smaller for 'SAKIMP021' than for 'SAKIMP006'. The upper side of the petal is purple red to blue pink for 'SAKIMP021' while it is purple for 'SAKIMP006'. The flower spur of 'SAKIMP021' has medium anthocyanin colouration while the spur of 'SAKIMP006' has very weak anthocyanin.

Description:

SHOOT: weak anthocyanin colouration on upper third

LEAF: variegation absent, upper side medium green with absent or very weak anthocyanin colouration, lower side green with absent or very weak anthocyanin colouration on midrib and veins
PETIOLE: upper side with absent or very weak anthocyanin colouration

FLOWER: single, upper side purple red to blue pink (RHS N66B-C), lower side blue pink (RHS N66C-D) with blue pink to light blue pink (RHS 65A-B) along midrib, lower petal with shallow incision, no eye zone
PEDICEL: very weak anthocyanin colouration
SPUR: medium anthocyanin colouration, weak to medium degree of curvature.

Origin & Breeding History: The variety 'SAKIMP021' originated from a hybridization between two proprietary breeding lines, made in June 2005 at the Misato Research Station in Misato, Japan. The resultant F1 progeny were evaluated in an open field trial and a single plant selection was made based on criteria for flower colour, strong root system and vigorous plant growth habit. From May to August 2006, the selection was evaluated in the field in Misato, Japan. Shoot tip cuttings of the selection were sent to Salinas, California where the plants were grown and evaluated for stability traits. The selection, subsequently named 'SAKIMP021', was found to have unique characteristics that reproduce true to type in successive generations of asexual propagation.

Tests & Trials: Trials for 'SAKIMP021' were conducted in a polyhouse during the spring of 2010 in St. Thomas, Ontario. Trials included 15 plants each of the candidate and reference varieties. Rooted cuttings were transplanted into 15 cm pots on April 21, 2010. Observations and measurements were taken from 10 plants of each variety on June 21, 2010. All colour determinations were made using the 2007 Royal Horticultural Society (RHS) Colour Chart.


Comparison tables for 'SAKIMP021' with reference variety 'SAKIMP006'

Plant height (cm)

  'SAKIMP021' 'SAKIMP006'
mean 35.4 30.6
std. deviation 3.59 4.19

Flower diameter (cm)

  'SAKIMP021' 'SAKIMP006'
mean 5.3 6.5
std. deviation 0.22 0.37

Colour of petal (RHS)

  'SAKIMP021' 'SAKIMP006'
upper side N66B-C N74A-B
lower side N66C-D, 65A-B along midrib N74C with N74B at margin and base, N74A at midrib

Upper petal width (cm)

  'SAKIMP021' 'SAKIMP006'
mean 3.7 4.5
std. deviation 0.13 0.15

Click on image for larger view
SAKIMP021
Impatiens: 'SAKIMP021' (left) with reference variety 'SAKIMP006' (right)

Click on image for larger view
SAKIMP021
Impatiens: 'SAKIMP021' (left) with reference variety 'SAKIMP006' (right)

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