47. Volume 14- Number 2 - IP Australia

Origin and Breeding Controlled self-pollination: of a
breeding line designated as 94-23-87. The resulting seeds
were identified as 95-105. The seeds were germinated and
one of the flowering progeny designated UoM95-105-6 was
selected. The parent is characterised by the presence of
numerous shades of large, semi double, coral flowers.
Selection criteria: large, coral coloured, semi double type
flowers, spreading and prolific growth habit with short
response time to flowering. Propagation: propagated
asexually using terminal cuttings through many
generations. Breeders: Neil Owen Anderson and Peter
David Ascher, University of Minnesota, St. Paul,
Minnesota, USA.
Choice of Comparators ‘UoM92-332-2’ from the same
breeder was the best comparator available. ‘Jennifer’
(Yoder, USA) was selected within the USA as being the
closest variety of common knowledge. ‘Jennifer’ is
described as an early decorative type garden
chrysanthemum with a stunning, bronze, two-tone flower
with mahogany centre petals surrounded by amber outer
petals. ‘Jennifer’ had a later flowering response and smaller
flowers than the candidate. An additional comparator
‘Horizon’ was selected from the Cleangro, U.K.
“Showmaker” series as being of similar two-tone colour
somewhere between the parent colour, the first comparator
and the candidate. The commercial varieties
‘Dancer’(lemon, decorative) and ‘Rodeo’(yellow, single)
were considered but were rejected on the basis of flower
colour. The Yoder coral/salmon varieties, ‘Blushing Emily’,
‘Grenadine’ and ‘Zesty Jean’ were all considered to be of
comparable colour but were all decorative types and not
chosen as as the closest comparators.
Comparative Trial Location: conducted at F&I Baguley
Flower and Plant Growers, Clayton South, VIC between Jan
and May 2001. Conditions: plants raised on their own roots
from cuttings planted into 200mm pots in commercial pine
bark potting mix on raised glasshouse benches. Pots were
watered and fed using a drip system (one dripper /pot). The
glasshouse had blackout facilities for flower regulation and
the glasshouse walls and roof were sprayed with whitewash.
All plants were subjected to the same spray chemical
treatments to maintain health. Trial design: 20 plants of
each variety arranged in 5 rows of 4 pots. The trial design
allowed comparison of form, growth habit and flower
colour. Measurements: from all trial plants.
Prior Applications and Sales
Country Year Current Status Name Applied
USA 2000 Applied ‘95-105-6’
Canada 2000 Applied ‘95-105-6’
Prior sales nil.
Description: Graeme Guy, Clayton South, VIC.
Table 6 Chrysanthemum varieties
‘UoM95- *‘Uom92- *‘Jennifer’*‘Horizon’
105-6’ 333-2’
____________________________________________________
LEAF SIZE small small medium mediumsmall
____________________________________________________
PLANT VARIETIES JOURNAL 2001 VOL 14 NO. 2
LEAF INCISIONS OF MARGIN
strong strong medium medium
____________________________________________________
LEAF LENGTH /WIDTH RATIO
longer longer longer as long as
than than than broad
broad broad broad
____________________________________________________
PLANT DENSITY
dense dense medium medium
____________________________________________________
TIME OF BEGINNING OF FLOWERING
early early late early
____________________________________________________
FLOWER COLOUR CHANGE
present present absent present
____________________________________________________
FLOWER COLOUR
Stage 6 RHS 178B RHS 185B RHS 7D
RHS 178D RHS 179B
RHS 168D RHS 160B
Stage 7 RHS 10C RHS 173D RHS 84 B
RHS 160C RHS 184C
RHS 162C RHS 186C
RHS 174D
RHS 186D
Stage 10 RHS 186C RHS 186B RHS 167C
____________________________________________________
FLOWER TYPE
semi- semi- double double
double double
____________________________________________________
‘UoM92-333-2’
Application No: 2000/338 Accepted: 1 Mar 2001.
Applicant: Regents of the University of Minnesota,
Minneapolis, USA.
Agent: Anthony Tesselaar Plants Pty Ltd, Silvan, VIC.
Characteristics (Table 7, Figure 16) Plant: height medium.
Stem: internode length short, diameter medium, colour
green (RHS 138B) anthocyanin colouration absent, strength
medium-strong. Lateral shoot: attachment to the stem
medium, angle between lateral shoot and stem medium.
Peduncle: thickness medium, length of terminal flower
head short. Stipule: size small. Leaf: length small-medium,
width narrow to medium, length to width ratio medium
(longer than wide), thickness medium, texture leathery,
dissection strong, colour upper side green (RHS 147A),
length of lower lobe short, shape of base of sinus between
lateral lobes round, claw in base of sinus between lateral
lobes absent, margins of sinus between lateral lobes parallel
to diverging, shape of base obtuse, shape of apex cuspidate.
Inflorescence: corymbiform. Flower head: diameter large,
height from involucral bracts to top of flower head medium,
type semi-double, number of involucral bracts 5or less,
involucral bracts among ray florets absent. Ray Floret:
longitudinal axis of majority of florets slightly twisted,
length of corolla tube short, cross section of ray concave,
keel present (2), length of outer florets long, width of outer
florets medium, ratio length to width, high, shape of tip
dentate, colour of outer side of majority of ray florets RHS
35C (at stage 6), colour of inner side of majority of ray
florets RHS 184C (at stage 8), colour of inner side of
majority of ray florets when faded RHS 186B (at stage 10),
31
DESCRIPTIONS