54. Volume 12- Number 4 - IP Australia

PLANT VARIETIES JOURNAL 1999 VOL 12 NO. 4
comparative trial as these are similar varieties of common
knowledge. ‘Pale Face’ A and ‘Wilma’s Choice’ were
chosen because they have a similar pale pink flower colour
to ‘Guinevere’. ‘Rosea’ was included because it is the
parental variety from which the candidate was originated.
‘Scarlet Pimpernel’ A and ‘Merlin’s Magic’ A have reddish
coloured flowers and were therefore excluded, as was
‘Cinderella’ A , which has variegated leaves.
Comparative Trial Comparators: ‘Pale Face’ A , ‘Wilma’s
Choice’ and ‘Rosea’. Location: Redlands Nursery Pty
Ltd, Redland Bay, QLD Jan to Oct 1999. Conditions:
vegetatively propagated in Jan 1999 and potted to 140mm
pots in May 1999 using a sawdust based mix with
controlled release fertilizer, placed in full sun and protected
by hail cloth. Standard nursery irrigation and pest and
disease practices were carried out; no growth treatments
were applied. Trial design: completely randomised block
design containing 20 replicates of each variety.
Measurements: vegetative observations taken from 10
randomly selected plants and floral characteristics recorded
on 10 randomly selected flowers at anthesis.
Prior Applications and Sales
First sold in Denmark in 1995. First Australian sale nil.
Description: Dr KV Bunker, Redlands Nursery Pty Ltd, Redland Bay,
QLD.
Table 31 Mandevilla (syn Dipladenia) varieties
‘Guinevere’ *‘Pale *‘Wilma’s *Rosea
Face’ A Choice’
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FLOWER: COLOUR UPPERSIDE AT ANTHESIS (RHS, 1966)
57C 63C 68B 57A
deep pink light pink medium red purple
pink
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FLOWER: COLOUR UNDERSIDE AT ANTHESIS
(RHS, 1966)
main colour 57D 63C 68B 57C
deep pink light pink medium deep pink
pink
stripe 57B 63B 57C 53C
deep pink light pink deep pink red
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FLOWER BUD: COLOUR (RHS, 1966)
57B 63B 57C 53C
deep pink light pink deep pink red
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PEAR
Pyrus communis
‘Corinella’
Application No: 98/188 Accepted: 14 Oct 1998.
Applicant: R. Anastasio, Lancaster, VIC.
Characteristics (Table 32, Figure 29) Plant: habit erect,
vigour strong. One year old shoots: colour brown, lenticels
few, shoot internode length medium (average 32.11mm).
Leaf: length medium (average 66.6mm), width broad
(average 41.9mm), margin indentation serrate, shape of
upper blade acute, shape of base flat, curvature of midrib
strong, glands absent. Petiole: length short, (average
23.2mm), stipules absent. Fruit: size large, length long
(average 85.6mm), width broad (average 79.8mm), shape
concave pyriform, russet very slight, stalk length medium
(average 20.7mm), curvature of stalk weak, fruit ground
colour at harvest maturity RHS 145A, overcolour absent,
margin of eye basin ribbed, eye basin depth medium
(average 11.3mm), eye basin width medium (average
29.9mm). Seeds: shape ovate. Season of maturity: late
season (Apr 1st, Lancaster, Victoria).
Origin and Breeding Spontaneous mutation: from one
branch from grafts of ‘Paradise’, made onto D9 stock at
applicant’s property in Lancaster, VIC in 1990. The mutated
branch was noted to be different in habit and form and to
produce fruit unlike the parent. Grafts were taken in 1994,
from which ‘Corinella’ has been selected. Fruit from
‘Corinella’ are characterised by large size, green skin colour
and pronounced crowns at the base, where as ‘Paradise’ has
very small fruit size and green/yellow skin colour. Selection
criteria: large green skinned fruit. Propagation: vegetative
by budwood. ‘Corinella’ will be commercially propagated
by vegetative cuttings from the stock plants. Breeder: R.
Anastasio, Lancaster, VIC.
Choice of Comparators ‘Paradise’ was chosen as a
comparator because it is the original source material from
which the candidate variety was selected. ‘Packham
Triumph’ was selected since it is the most similar variety of
common knowledge in terms of similar fruit characteristics
and maturity time. No other similar varieties of common
knowledge have been identified
Comparative Trial Comparators: ‘Paradise’, ‘Packham
Triumph’. Location: Lancaster, VIC, 1995/98. Conditions:
trees 4 years old grafted onto Pyrus calleryana (D6) planted
in large blocks and maintained under normal commercial
practice. Trees planted on 6 metre spacings as free standing
specimens. Pest and disease treatments applied as required.
Trial design: large un-randomised block of commercial
planting. Measurements: taken from 12 trees with 80
measurements per variety.
Prior Applications and Sales
A prior application was made in Australia in 1995, which
was subsequently withdrawn. (Application number
95/202). First Australian sale nil.
Description: Leslie Mitchell, Agrisearch Services Pty Ltd, Shepparton,
VIC.
Table 32 Pyrus varieties
‘Corinella’ *‘Packham *‘Paradise’
Triumph’
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ONE YEAR OLD SHOOT INTERNODE LENGTH (mm)
Mid season
mean 32.11 32.18 40.56
std deviation 5.51 7.13 4.31
LSD/sig 3.07 ns P≤0.01
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WATER SHOOT COLOUR
brown brown light brown
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