49. Volume 14- Number 1 - IP Australia

PLANT VARIETIES JOURNAL 2001 VOL 14 NO. 1
Table 16 continued
LEAF: DENTATION OF MARGIN
strong weak weak strong
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LEAF: LENGTH (cm)
mean 22.9 25.4 25.8 21.4
std deviation 1.95 2.55 2.20 2.10
LSD/sig 1.5 P≤0.01 P≤0.01 P≤0.01
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LEAF: WIDTH (cm)
mean 9.0 10.1 9.1 8.3
std deviation 0.77 1.09 0.96 0.97
LSD/sig 0.7 P≤0.01 ns P≤0.01
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PETIOLE LENGTH: PLANT WITH LOBED LEAVES (cm)
8.6 11.8 10.7 9.5
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TIME OF FLOWERING (Days after sowing: 5-6-00 at Gatton,
QLD)
62 76 79 61
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PETAL LENGTH (mm)
mean 11.5 13.4 11.85 n/a
std deviation 0.85 0.86 0.82 n/a
LSD/sig 1.9 P≤0.01 ns n/a
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PETAL WIDTH (mm)
mean 5.8 6.8 5.6 n/a
std deviation 0.65 0.62 0.67 n/a
LSD/sig 1.01 P≤0.01 n/s n/a
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PLANT HEIGHT (cm)
mean 115.18 142.68 136.10 104.97
std deviation 6.27 7.86 7.28 6.00
LSD/sig 10.21 P≤0.01 P≤0.01 P≤0.01
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SILIQUA LENGTH (mm)
mean 59.85 53.18 53.90 57.60
std deviation 4.48 3.82 3.01 5.09
LSD/sig 5.95 P≤0.01 P≤0.01 ns
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SILIQUA: LENGTH OF BEAK (mm)
mean 14.8 9.95 11.93 9.40
std deviation 1.5 2.13 1.82 1.40
LSD/sig 2.87 P≤0.01 P≤0.01 P≤0.01
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SILIQUA: LENGTH OF PEDUNCLE (mm)
mean 22.25 16.05 18.82 17.45
std deviation 3.58 2.29 2.1 1.59
LSD/sig 3.43 P≤0.01 P≤0.01 P≤0.01
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seed parent is characterised by a very low level of blackleg
resistance compared with the candidate variety. The pollen
parent is a non-commercial proprietary breeding line
developed by the applicant with high levels of erucic acid.
Selection criteria: in early generations selections were
based on blackleg resistance, oil content, plant type, and
absence of erucic acid. The F 6 generation was evaluated in
trials and used for subsequent seed increases. Propagation:
by seed. Breeder: Andrew Easton, Pacific Seeds Pty Ltd,
Toowoomba, QLD.
Choice of Comparators ‘Monty’ A , ‘Mystic’ A ,
‘Rainbow’ A , ‘Georgie’, and ‘AG Emblem’ were selected as
comparators as they exhibit early to medium maturity. The
seed parent ‘Polo’ was excluded from the trial as it has no
resistance to blackleg. The pollen parent AB898 was
excluded as it has high levels of erucic acid.
Comparative Trial Location: conducted at Gatton, QLD,
sown on 5 June 2000. Conditions: sown by seed and normal
agronomic practices were employed. Trial design:
randomised complete block with three replicates.
Measurements: two replicates were sampled to provide 30
random samples per replication.
Prior Application and Sales
Country Year Current Status Name Applied
South Africa 1999 Granted ‘Varola 50’
No overseas sale. First Australian sale 2000.
Description: Heidi Young, Pacific Seeds, Toowoomba, QLD.
‘Varola 50’ syn Surpass 400
Application No: 2000/037 Accepted 24 Feb 2000
Applicant: Pacific Seeds Pty Ltd, Toowoomba, QLD.
Characteristics (Table 17, Figure 38) Plant: habit bushy,
height medium-tall; flowering and maturity early. Leaves:
lobed, medium dentation, short, colour dark green.
Inflorescence: petal colour yellow, petal length long; width
narrow. Siliqua: peduncle length short, siliqua length short,
beak length short. Seed: free of erucic acid.
Origin and Breeding Controlled pollination: seed parent
‘Polo’ x pollen parent breeding line AB898 in 1995. The
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