49. Volume 14- Number 1 - IP Australia

PLANT VARIETIES JOURNAL 2001 VOL 14 NO. 1
the imidazolinone resistance. Selection criteria: yield,
canola quality oil and protein and blackleg resistance.
Propagation: seed. Breeder: Dr Jay Patel, Pioneer Hi-Bred
International, Inc. Georgetown, Ontario Canada.
Choice of Comparators ‘Karoo’ A and ‘Monty’ A were
considered for the comparative trial as these are similar
varieties of common knowledge. ‘Karoo’ A is a widely
available variety with similar maturity. ‘Monty’ A , was
chosen because of its similarity in maturity and height. The
female parents were not considered for the trial as they have
very minimal resistance to blackleg.
Comparative Trial Location: Wagga Wagga, NSW, Jun
2000 to Dec 2000. Conditions: field trial conducted on
heavy grey cracking clay soil supplemented with nitrogen
and phosphorus fertilisers. Trial design: 1m wide x 3m long
field plots, 3 replicates of each variety arranged in a
randomised block design. Measurements: twenty samples
selected at random for each replicate of each variety.
Prior Applications and Sales
No prior applications. First sold in Australia in Dec 1999.
Description: Milton Jaeger, Pioneer Hi-Bred International, Inc., Wagga
Wagga, NSW.
Table 8 Brassica varieties
‘44C71’ *‘Monty’ A *‘Karoo’ A
____________________________________________________
LEAF: COLOUR (Light, Medium, Dark; Shades of Green)
dark medium light
____________________________________________________
LEAF: LOBE NUMBER (Few, Medium, Many)
many few many
____________________________________________________
LEAF: DENTATION OF MARGIN (1=Small 9=Large)
5 6 5
____________________________________________________
LEAF LENGTH (cm)
mean 18.73 14.83 15.58
std deviation 2.79 2.59 3.72
LSD/sig 1.48 P≤0.01 P≤0.01
____________________________________________________
TIME OF FLOWERING (Days after sowing: 1-6-99)
days 103 100 104
____________________________________________________
PETAL WIDTH (mm)
mean 6.09 5.94 5.55
std deviation 0.81 0.71 0.63
LSD/sig 0.35 ns P≤0.01
____________________________________________________
PLANT HEIGHT (cm)
mean 133 120 130
std deviation 10.41 7.64 5.00
LSD/sig 9.44 P≤0.01 ns
____________________________________________________
SILIQUA LENGTH (mm)
mean 49.30 57.11 59.28
std deviation 4.95 4.63 10.27
LSD/sig 3.42 P≤0.01 P≤0.01
____________________________________________________
SILIQUA: LENGTH OF PEDUNCLE (mm)
mean 19.15 24.05 19.65
std deviation 2.08 3.53 2.38
LSD/sig 1.32 P≤0.01 ns
____________________________________________________
HERBICIDE RESISTANCE (Active Constituents Imazapic &
Imazapyr)
yes no no
____________________________________________________
‘46C03’
Application No: 2000/199 Accepted: 17 Jul 2000.
Applicant: Pioneer Hi-Bred International, Inc. Des
Moines, Iowa, USA.
Agent: Pioneer Hi-Bred Australia Pty Ltd, Toowoomba,
QLD.
Characteristics (Table 9, Figure 30) Plant: height tall
(133.0cm), maturity mid. Seedlings: variable for hairs on
the first true leaf, Leaf: length long (17.13cm), width broad
(9.05cm), dentation of margin medium with many lobes.
Flowers: petals length/width ratio of 1.68. Pods: medium
(55.92mm). Peduncle medium (19.10mm). Beak medium
(10.78mm). Disease resistance: moderately resistant to
blackleg (Leptosphaeria maculans).
Origin and Breeding Controlled pollination: seed parent
(‘Barossa’ x ‘Bullet’) x pollen parent ‘Oscar’ A , followed by
a modified pedigree breeding method. The female parent is
susceptible to blackleg. Selection criteria: yield canola
quality oil and protein and blackleg resistance. Propagation:
seed. Breeder: Dr Jay Patel, Pioneer Hi-Bred International,
Inc. Georgetown, Ontario Canada.
Choice of Comparators ‘Oscar’ A , ‘46C01’ A ,
‘Rainbow’ A , ‘Ripper’ A and ‘AG Emblem’ were considered
for the comparative trial as these are similar varieties of
common knowledge. ‘Oscar’ A is a widely available variety
and one of the parents. ‘46C01’ A , was chosen because it is
a similar variety from the same breeding program.
‘Rainbow’ A , ‘Ripper’ A and ‘AG Emblem’ were chosen for
their similarities in height and maturity. The female parents
were not considered for the trial as they have very minimal
resistance to blackleg.
Comparative Trial Location: Wagga Wagga, NSW, Jun
2000 to Dec 2000. Conditions: field trial conducted on
heavy grey cracking clay soil supplemented with nitrogen
and phosphorus fertilisers. Trial design: 1m wide x 3m long
field plots, 3 replicates of each variety arranged in a
randomised block design. Measurements: twenty samples
selected at random for each replicate of each variety.
Prior Applications and Sales
No prior applications. First sold in Australia in Dec 1999.
Description: Milton Jaeger, Pioneer Hi-Bred International, Inc., Wagga
Wagga, NSW.
28