Nakpen004

Pentas

Denomination: 'Nakpen004'
Trade name: Bahamas Light Pink
Botanical Name: Pentas
Applicant/Holder: Sakata Seed Corporation
2-7-1 Nakamachidai
Tsuzuki-Ku
Yokohama
224-0041
Japan
Breeder: Shouji Shiotsuki, Japan
Agent in Canada: Variety Rights Management
475 County Road 18
R.R. #2
Oxford Station, Ontario
K0G 1T0
Canada
Tel: 613-258-9015
Application Date: 2005-04-04
Application Number: 05-4683
Date Withdrawn: 2008-08-29

Variety Description

Variety used for comparison: 'New Look Pink'

Summary: 'Nakpen004' has a larger plant than 'New Look Pink'. The leaf of 'Nakpen004' is longer than 'New Look Pink'. 'Nakpen004' has a wider inflorescence than 'New Look Pink'. The corolla of 'Nakpen004' is slightly wider with a longer corolla tube than 'New Look Pink'. 'Nakpen004' has a lighter pink corolla colour than 'New Look Pink'. The stigma of 'Nakpen004' is white while it is pink in 'New Look Pink'.

Description:

PLANT: upright growth habit
STEM: short internodes, light green colour, anthocyanin colouration present

LEAF: elliptic shape, medium green colour, sparse pubescence, absent or very weak blistering

INFLORESCENCE: rounded shape of the upper side when viewed from the side

COROLLA: large diameter, long corolla tube, corolla tube light blue pink (RHS 65D)
COROLLA LOBE: semi-erect to horizontal attitude, long, broad, ovate shape, primary colour light blue pink (RHS 56C), white eye
ANTHER: found below top of corolla tube, pollen whitish to yellowish colour
PISTIL: long style, medium sized white lobes of stigma

Origin & Breeding History: 'Nakpen004' originated from the cross between the female parent 'New Look Pink' and the male parent 'New Look Rose' made in Fujisawa, Japan in 1995. In 1996, F1 seed from this cross was sown in a greenhouse, with the plants later transplanted to an outdoor trial, where they were evaluated and selected based on compact growth habit, branching growth habit and large flower clusters. The selections were intercrossed to produce F2 seed. In 1997, the F2 generation was sown, evaluated and intercrossed in the same manner. In 1998, the F3 generation was sown, evaluated and intercrossed in the same manner. In 1999, the F4 generation was sown in a greenhouse and later transplanted to an outdoor trial where the final selection was made based on its light pink flower colour, branching and compact growth habit and large flower clusters. In 2001 and 2003, the selection was evaluated in an indoor and outdoor trial to confirm uniformity and stability of its characteristics.

Tests & Trials: Tests and trials were conducted during the summer of 2005 in Oxford Station, Ontario. Fifteen plants of each variety were individually grown in 10 centimeter plastic pots spaced 15 centimeters apart in a poly house.


Comparison tables for 'Nakpen004' with reference variety 'New Look Pink'

Plant height (cm)

  'Nakpen004' 'New Look Pink'
mean 31.38 26.13
std. deviation 1.51 2.70

Plant width (cm)

  'Nakpen004' 'New Look Pink'
mean 26.88 17.88
std. deviation 2.64 2.17

Leaf length (cm)

  'Nakpen004' 'New Look Pink'
mean 10.38 8.45
std. deviation 1.78 0.99

Inflorescence diameter (cm)

  'Nakpen004' 'New Look Pink'
mean 7.46 5.30
std. deviation 1.19 0.59

Corolla colour (RHS)

  'Nakpen004' 'New Look Pink'
outer side of tube 65D 68D
upper side of lobe 56C 68A

Click on image for larger view
Nakpen004
Pentas: 'Nakpen004' (left) with reference variety 'New Look Pink' (right)

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