54. Volume 12- Number 4 - IP Australia

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PLANT VARIETIES JOURNAL 1999 VOL 12 NO. 4 ‘Surpass 600’ Application No: 98/239 Accepted: 1 Dec 1998. Applicant: Pacific Seeds Pty Ltd, Toowoomba, QLD. Characteristics (Table 11, Figure 39) Plant: bushy, height short-medium (average 125cm); flowering and maturity medium. Leaves: strongly lobed, moderately dentate, moderately short and broad, medium green. Inflorescence: petals yellow, medium petal length but petals narrow. Siliqua: peduncles long, siliqua long and beaks short. Seed: free of erucic acid. Origin and Breeding Controlled pollination: seed parent ‘Dunkeld’ A x pollen parent breeding line 4101 in 1994. The seed parent is characterised by taller plant height than the candidate variety (133.6cm vs 125.6cm). The pollen parent is a non-commercial proprietary breeding line developed by the applicant. Selection criteria: in early generations selections were based on maturity and plant type. The F 4 generation was selected for blackleg resistance, oil content, maturity. The F 5 was screened for oil content, blackleg resistance, maturity and plant type. Fifty nine individual selections were made in the following year and these were increased for trials and seed increase. Propagation: by seed. Breeder: Andrew Easton, Pacific Seeds Pty Ltd, Toowoomba, QLD. Choice of Comparators The seed parent ‘Dunkeld’ A was selected as a comparator as were ‘Charlton’, ‘Mystic’ A , and ‘Rainbow’ A which exhibit moderate to strong leaf lobe development whereas ‘Oscar’ A , ‘Scoop’ A , ‘Range’ A and ‘Grouse’ A were excluded because of their having few leaf lobes. Comparative Trial Comparators: ‘Charlton’, ‘Mystic’ A , and ‘Rainbow’ A and ‘Dunkeld’ A . Locations: trials were conducted at Wagga Wagga (sown 10 May 1999) and Cowra, NSW (sown 19 May 1999). Conditions: sown by seed and normal agronomic practices were employed. Trial design: randomised complete blocks with three replicates at Wagga Wagga and two at Cowra. Measurements: Two replications were sampled to provide 30 random samples per replication at each site. Prior Applications and Sales Nil. Description: Dr Ross Downes, Innovative Plant Breeders, Canberra. Table 11 Brassica varieties ‘Surpass 600’ *‘Charlton’ *‘Mystic’ A *‘Rainbow’ A *‘Dunkeld’ A ______________________________________________________________________________________________________________ LEAF LENGTH (cm) mean 21.4 24.0 24.0 22.1 22.4 std deviation 2.49 3.55 3.03 3.69 3.02 LSD/sig 1.30 P≤0.01 P≤0.01 ns ns ______________________________________________________________________________________________________________ LEAF WIDTH (cm) mean 9.9 9.9 10.5 9.7 9.9 std deviation 1.38 1.29 1.36 1.51 1.32 LSD/sig 0.59 ns P≤0.01 ns ns ______________________________________________________________________________________________________________ LEAF COLOUR mid green light green mid green mid green light green ______________________________________________________________________________________________________________ PLANTS WITH LEAF LOBES (PER CENT) 100 97 53 93 98 ______________________________________________________________________________________________________________ LOBE NUMBER PER PLANT WITH LOBED LEAVES 3.9 5.6 3.7 5.3 5.3 ______________________________________________________________________________________________________________ PETIOLE LENGTH ON PLANTS WITH LOBED LEAVES (cm) 10.7 12.1 12.0 12.8 11.1 ______________________________________________________________________________________________________________ LEAF DENTATION (rating 3=slight, 7=strong) 5.1 5.7 5.9 5.8 5.6 ______________________________________________________________________________________________________________ TIME OF FLOWERING (days after sowing at Wagga) 113 115 112 114 116 ______________________________________________________________________________________________________________ PETAL WIDTH (mm) mean 6.7 7.3 7.6 8.2 7.1 std deviation 0.73 0.85 0.76 0.88 0.82 LSD/sig 0.35 P≤0.01 P≤0.01 P≤0.01 P≤0.01 ______________________________________________________________________________________________________________ PLANT HEIGHT (cm) mean 125.6 135.4 133.4 135.7 133.6 std deviation 8.3 7.9 8.3 8.4 9.4 LSD/sig 3.4 P≤0.01 P≤0.01 P≤0.01 P≤0.01 ______________________________________________________________________________________________________________ SILIQUA LENGTH (mm) mean 62.5 62.5 58.8 55.1 61.8 std deviation 6.7 8.3 6.4 6.8 9.2 LSD/sig 3.3 ns P≤0.01 P≤0.01 ns ______________________________________________________________________________________________________________ 28
DESCRIPTIONS PLANT VARIETIES JOURNAL 1999 VOL 12 NO. 4 Table 11 Continued BEAK LENGTH (mm) mean 11.7 14.8 12.2 10.9 14.1 std deviation 2.1 2.4 2.0 2.1 2.6 LSD/sig 1.0 P≤0.01 ns ns P≤0.01 ______________________________________________________________________________________________________________ PEDUNCLE LENGTH (mm) mean 24.0 25.4 20.1 18.1 24.5 std deviation 3.3 4.1 3.5 2.5 3.6 LSD/sig 1.5 ns P≤0.01 P≤0.01 ns ______________________________________________________________________________________________________________ ‘Surpass 600 TT’ Application No: 98/238 Accepted: 1 Dec 1998. Applicant: Pacific Seeds Pty Ltd, Toowoomba, QLD. Characteristics (Table 12, Figure 40) Plant: bushy, height medium (average 118cm); flowering and maturity medium late. Leaves: long and broad, strongly lobed, moderately dentate, light green. Inflorescence: petals yellow, long and medium width. Siliqua: peduncles long, pods long and beaks long. Seed: free of erucic acid. Plants tolerate triazine herbicides. Origin and Breeding Controlled pollination: seed parent ‘Siren’ x pollen parent breeding line PAC N 142 (‘Surpass 600’). The female parent is triazine tolerant and the male parent was backcrossed three times onto the female followed by three generations of selection and seed increase. ‘Surpass 600 TT’, like other triazine tolerant varieties has reduced vegetative growth vigour compared with its male parent and other non-triazine tolerant varieties. It has shorter and narrower leaves than ‘Siren’, is earlier flowering at Cowra (108 vs 112 days), and is shorter (145 vs 155cm), has a much longer siliqua (60 vs 50 mm), and has a longer beak (13.4 vs 11.5mm). Selection criteria: triazine tolerance, blackleg resistance, oil content. Propagation: by seed. Breeder: Andrew Easton, Pacific Seeds Pty Ltd, Toowoomba, QLD. Choice of Comparators Varieties not tolerant to triazine herbicides can be readily distinguished. The comparators were triazine tolerant ‘TI 1 Pinnacle’ A , ‘Drum’ A , ‘Clancy’ A and ‘Karoo’ A . In a supplementary trial ‘Surpass 600 TT’ was compared with its maternal parent ‘Siren’. Comparative Trial Comparators: ‘TI 1 Pinnacle’ A , ‘Drum’ A , ‘Clancy’ A and ‘Karoo’ A . Locations: trials were conducted at Wagga Wagga (sown 10 May 1999) and Cowra, NSW (sown 19 May 1999). Conditions: sown by seed and normal agronomic practices were employed. Trial design: randomised complete blocks with three replicates at Wagga Wagga and two at Cowra. Measurements: Two replications were sampled to provide 30 random samples per replication at each site. Prior Applications and Sales Nil. Description: Dr Ross Downes, Innovative Plant Breeders, Canberra. Table 12 Brassica varieties ‘Surpass 600 TT’ *‘TI 1 Pinnacle’ A *‘Drum’ A *‘Clancy’ A *‘Karoo’ A ______________________________________________________________________________________________________________ LEAF LENGTH (cm) mean 18.7 16.6 18.0 15.9 19.4 std deviation 2.13 2.31 2.45 2.21 2.23 LSD/sig 0.95 P≤0.01 ns P≤0.01 ns ______________________________________________________________________________________________________________ LEAF WIDTH (cm) mean 8.5 7.6 8.4 8.0 8.5 std deviation 1.05 1.11 1.06 0.88 1.07 LSD/sig 0.45 P≤0.01 ns P≤0.01 ns ______________________________________________________________________________________________________________ LEAF COLOUR light green mid green light green mid green mid green ______________________________________________________________________________________________________________ PLANTS WITH LEAF LOBES (PER CENT) 96.7 98.3 76.7 36.7 86.7 ______________________________________________________________________________________________________________ LOBE NUMBER PER PLANT WITH LOBED LEAVES 3.9 5.1 4.5 4.8 3.2 ______________________________________________________________________________________________________________ PETIOLE LENGTH ON PLANTS WITH LOBED LEAVES (cm) 9.1 8.3 7.9 6.7 10.2 ______________________________________________________________________________________________________________ LEAF DENTATION (rating 3=slight, 7=strong) 5.4 5.8 6.0 5.7 6.1 ______________________________________________________________________________________________________________ TIME OF FLOWERING (days after sowing at Wagga) 118 120 116 116 113 ______________________________________________________________________________________________________________ 29
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GRANTS PLANT VARIETIES JOURNAL 1999
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SERVICE DIRECTORY WARATAH SEED CO.
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PLANT BREEDER’S RIGHTS ADVISORY C
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54. Volume 12- Number 4 - IP Australia

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