49. Volume 14- Number 1 - IP Australia

PLANT VARIETIES JOURNAL 2001 VOL 14 NO. 1
quality in nurseries at Lake Bolac and Horsham. In 1997 the
variety was entered into the Interstate Stage 2 canola trials
and then to Stage 4 trials in 1998, as AGA97-14, and was
trialled in a range of locations covering relevant canola
growing regions of Australia for two years. Certified seed
production occurred in 1999 and the variety was
commercialised in 2000. Propagation: open pollinated seed.
Breeder: Ag-Seed Research Pty Ltd under a team headed by
Dr. Gururaj Kadkol.
Choice of Comparators ‘Charlton’ A , ‘Ripper’ A and
‘Oscar’ A were used as comparators. ‘Oscar’ A and
‘Charlton’ A have been a leading medium maturing canola
varieties in Australia since 1994 and 1998 respectively.
‘Ripper’ A was included as a recently released medium
maturity variety. The pollen parent was not considered
because it is an experimental inbred line within the breeding
program.
Comparative Trial Location: Comparative trials were
conducted at Ag-Seed Research trial site at Horsham, VIC.
Conditions: Field trials were conducted during 2000 season.
Glasshouse trials were carried out in 2000 and 2001. Trial
Design: data on mature plant characters were collected in
replicated field trials consisting of six row, 5m plots laid out
as randomised blocks. Seedling character data were
collected in glasshouse trials designed as completely
randomised trials. Measurement: data were recorded on 20
random plants from each of the three replicates giving a
total of 60 observations per variety.
Prior Applications and Sales
No prior applications. First sold in Australia in Apr 2000.
Description: Paul Rudolph, Ag-Seed Research Pty Ltd, Horsham, VIC.
Table 14 Brassica varieties
‘Trooper’ *‘Charlton’ A *‘Ripper’ A *‘Oscar’ A
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COTYLEDON WIDTH/LENGTH
mean 2.003 1.886 1.921 1.835
std deviation 0.110 0.150 0.164 0.176
LSD/Sig 0.076 P≤0.01 P≤0.01 P≤0.01
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EXTENT OF HAIRS ON FIRST TRUE LEAF
absent 1 8 9 4
few 18 37 31 40
numerous 41 15 20 16
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PERCENTAGE OF LEAF LOBING
present 75.0 66.6 81.6 6.6
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LOBE NUMBER PER PLANT WITH LOBED LEAVES
mean 2.96 2.95 3.37 2.75
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DAYS TO 50% FLOWERING
113 113 114 113
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PETAL LENGTH/WIDTH
mean 2.02 1.80 1.80 2.19
std deviation 0.14 0.14 0.11 0.17
LSD/sig 0.06 P≤0.01 P≤0.01 P≤0.01
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PERCENTAGE OF ANTHER DOTTING
present 48.3 60.0 100 51.6
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PLANT HEIGHT (cm)
mean 129.2 125.1 130.4 119.2
std deviation 8.67 7.63 9.15 8.06
LSD/sig 3.8 P≤0.01 ns P≤0.01
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SILIQUA LENGTH (mm)
mean 45.3 51.1 49.3 43.8
std deviation 5.13 6.73 4.98 3.93
LSD/sig 2.3 P≤0.01 P≤0.01 ns
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PEDICEL LENGTH (mm)
mean 21.7 23.0 25.9 18.2
std deviation 4.04 3.66 5.86 2.99
LSD/sig 2.09 ns P≤0.01 P≤0.01
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BEAK LENGTH (mm)
mean 8.95 13.11 15.09 9.28
std deviation 1.18 2.02 1.78 1.32
LSD/sig 0.75 P≤0.01 P≤0.01 ns
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POD WIDTH (mm)
mean 4.54 4.76 4.61 4.61
std deviation 0.3 0.34 0.29 0.33
LSD/sig 0.14 P≤0.01 ns ns
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‘TM8’
Application No: 1999/346 Accepted: 20 Jun 2000.
Applicant: Agriculture Victoria Services Pty Ltd,
Attwood, VIC and
Grains Research and Development Corporation, Barton,
ACT.
Agent: Ag-Seed Research Pty Ltd, Horsham, VIC.
Characteristics (Table 15, Figure 36) Plant: habit erect,
height medium (118cm), medium early maturing. Seedling:
cotyledon medium (width/length ratio 1.9), first true leaf
few to numerous hairs, 5 th leaf mostly lobed (98% lobed),
colour green (RHS 137C, 1986). Flower: medium petals
(length/width ratio 1.9), anther dotting present. Pods:
medium long (51.3mm), pedicel medium (21mm), beak
medium (10.7mm). Seed: black, canola quality. Herbicide
resistance: tolerant to triazine herbicides.
Origin and Breeding Controlled pollination: ‘TM8’ was
developed using a modified breeding method in 1996 from
a cross, made in 1994, between two breeding lines, TI8*S
and BLN896*S. The seed parent is characterised by later
flowering and pollen parent is susceptible to triazine
herbicides. During 1995 and 1996 the segregating material
was selected for blackleg resistance and oil and protein
content in nurseries at Lake Bolac and Horsham. In 1997
the variety was evaluated for yield and canola quality in a
preliminary yield trial at Horsham. In 1998 the variety was
entered into the interstate Stage 2 canola trials and then to
Stage 4 trials in 1999, as TM8, and was trialled in a range
of locations covering relevant canola growing regions of
Australia for two years. Certified seed production occurred
in 1999 and the variety was commercialised in 2000.
Propagation: open pollinated seed. Breeder: Oilseeds team
at Victorian Institute for Dryland Agriculture, Horsham, led
by Mr Wayne Burton.
Choice of Comparators ‘TI1 Pinnacle’ A , ‘Drum’ A , and
‘Karoo’ A were used as comparators. ‘TI1 Pinnacle’ A has
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