Aushunter

Rose

Denomination: 'Aushunter'
Trade name: Jubilee Celebration
Botanical Name: Rosa
Applicant/Holder: David Austin Roses Limited
Bowling Green Lane
Wolverhampton
Albrighton
WV7 3HB
United Kingdom
Breeder: David Austin, David Austin Roses Limited, Albrighton, United Kingdom
Agent in Canada: BioFlora Inc.
38723 Fingal Line
R.R. #1
St. Thomas, Ontario
N5P 3S5
Canada
Tel: 519-631-6241
Application Date: 2004-01-13
Application Number: 04-3940
Grant of Rights Date: 2010-03-17
Certificate Number: 3812
Grant of Rights Termination Date: 2028-03-17

Variety Description

Variety used for comparison: 'Ausjump' (Christopher Marlowe)

Summary: 'Aushunter' has a more upright growth habit than 'Ausjump'. 'Aushunter' has a larger leaf and larger flower diameter than 'Ausjump'. 'Aushunter' differs slightly from 'Ausjump' in flower colour.

Description:

PLANT: English shrub rose, bushy growth habit
YOUNG SHOOT ANTHOCYANIN: medium intensity, reddish brown
PRICKLES/THORNS: deep concave, green and red, sparse short prickles, average number of long prickles, absent to very few on pedicel

LEAF: medium green on upper side at time of first flowering, medium glossiness on upper side, five leaflets
TERMINAL LEAFLET: dentate margin, leathery texture, obtuse base

FLOWERING HABIT: mid-season, two flowering periods, duration more than ten weeks
FLOWER BUD: ovoid, orange pink upper surface, light red pink on under surface with tint of yellow
SEPAL: weak extensions
FLOWER: medium number per flowering shoot, irregularly rounded when viewed from above, flat on upper part when viewed from the side, concave on lower part when viewed from the side, flower centre infold, very double corolla type, pink blend American Rose Society colour group, overall colour red pink and yellow, fading to light blue pink with age, strong fruit tropicana fragrance
PETAL: middle zone of outer side orange, marginal zone of outer side light red-pink, middle zone of inner side orange-pink, marginal zone of inner side orange red, medium reflexing and undulation of margin
BASAL PETAL SPOT (inner side and outer side): medium size, yellow
OUTER STAMEN: yellow filament
STYLE: medium length, yellow-green, weak hairiness on upper half, positioned below anthers
RECEPTACLE: medium size, pitcher shaped, no prickles

Origin & Breeding History: 'Aushunter' originated from a cross between 'Ausgold' as the seed parent and an unnamed pollen parent. The cross was made at Bowling Green Lane, Albrighton, United Kingdom in 1998. Selection criteria included plant growth habit and repeated flowering.

Tests & Trials: 'Aushunter' was tested at Pickering Nurseries Inc. in Port Hope, Ontario in 2008. The trial included 8 plants of the candidate variety and 7 plants of the reference variety. The candidate and reference varieties were planted in the field as one year old plants in 2006. Measured characteristics were based on 30 measurements.


Comparison tables for 'Aushunter' with reference variety 'Ausjump'

Leaf length (mm)

  'Aushunter' 'Ausjump'
mean 157.3 109.4
std. deviation 20.63 13.03

Leaf width (mm)

  'Aushunter' 'Ausjump'
mean 108.4 77.6
std. deviation 17.05 8.22

Flower diameter (mm)

  'Aushunter' 'Ausjump'
mean 89 74
std. deviation 9.44 9.54

Flower overall colour (RHS)

  'Aushunter' 'Ausjump'
overall 49A and 9A 50C
fading to 55C 54C

Petal colour (RHS)

  'Aushunter' 'Ausjump'
outside - middle 24C 50C
outside - margin 37C 22B
inside - middle 37A 55B
inside - margin 39B 55B

Click on image for larger view
Aushunter
Rose: 'Aushunter' (left) with reference variety 'Ausjump' (right)

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