44. Volume 15- Number 2 - IP Australia

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PLANT VARIETIES JOURNAL 2002 VOL 15 NO. 2 Table 7 (continued) LEAF COLOUR (RHS 2001) upper side 189A 137A lower side 147B 146B ____________________________________________________ FLOWER BUD HEIGHT (mm) prior to opening mean 8.4 7.3 std deviation 0.7 0.4 LSD/sig 0.6 P≤0.01 ____________________________________________________ FLOWER BUD WIDTH (mm) prior to opening mean 8.4 7.3 std deviation 0.7 0.3 LSD/sig 0.7 P≤0.01 ____________________________________________________ FLOWER type semi-double double ____________________________________________________ RAY FLORETS number of rows 4 to 5 8 to 10 number of florets 60-70 >100 ____________________________________________________ RAY FLORET LENGTH TO WIDTH RATIO mean 4.4 3.6 std deviation 0.4 0.3 LSD/sig 0.3 P≤0.01 ____________________________________________________ RAY FLORET COLOUR (RHS 2001) at first opening (when ray floret attitude is semi-erect) 58B 63C fully open (when ray floret attitude is horizontal) inner florets 58B N57D outer florets 58D 69D aged (when ray floret attitude is reflexed) inner florets 58B N57D outer florets 69D 69D ____________________________________________________ Avena sativa Oats ‘Possum’ Application No: 2001/236 Accepted: 17 Sep 2001 Applicant: Minister for Agriculture, Food and Fisheries, Adelaide, SA. Characteristics (Table 8, Figure 55) Plant: growth habit intermediate, length (stem and panicle) very short, maturity medium, seasonal type spring. Stem: hairiness of uppermost node present, intensity of hairiness of uppermost node absent or very weak. Leaf: hairiness of margins of leaf blade below the flag leaf absent. Inflorescence: orientation of branches equilateral, attitude of branches semi erect, attitude of spikelets pendulous, length of glumes medium. Seed: husk present, colour yellow, glaucosity of lemma of primary grain absent. Origin and Breeding Controlled pollination: seed parent ND863468 x first pollen parent OX82059-58-10 in 1990. The F1 from this cross was then crossed to the second pollen parent, ‘Carrolup’ A in 1991. The seed parent is characterised by late maturity and small seed size. The first pollen parent was characterised by tall plant type. The cross OX82059 is seed parent ‘Mortlock’ x pollen parent ‘Echidna’. The second pollen parent is also characterised by tall plant type. Hybridisation took place at the Northfield Research Laboratories, Adelaide, SA. From this cross, panicles were selected from F3 plots at Turretfield Research Centre (located near Rosedale, SA) in 1992. Selection number seven was chosen in 1998 after six cycles of selection on the basis of grain yield and grain quality. Selection criteria: grain yield, hectolitre weight, screenings percentage, 1000 grain weight, groat percentage, protein and oil content. Propagation: seed. Breeder: Dr. Pamela Zwer and the Oat Breeding Team of the South Australian Research and Development Institute, Waite Campus, Urrbrae, SA. Choice of Comparators Grouping characteristics used in identifying the most similar varieties of common knowledge were – Plant length: short, End use: milling. On the basis of these grouping characteristics, the following comparator variety was included in the trial: ‘Echidna’. ‘Euro’ was included as it is derived from the same cross as OX82059-58-10. ‘Mortlock’ was included as a milling quality variety. It is however, medium in plant height. ‘Potoroo’ was included as a short variety. The pollen parent ‘Carrolup’ A was not included as it is tall in plant height. Comparative Trial Location: Kingsford Research Centre, SA (Latitude 34º33′ Longitude 138º46′, elevation 120m), winter/spring 2001. Conditions: trial conducted in the field, sown on 29 Jun, fertiliser, herbicides and insecticides applied as required. Trial design: three replicates of each variety were sown in plots 5m x 1.3m arranged in a randomised block design. Measurements: from twenty plants at random. One sample per plant. Prior Applications and Sales Nil. Description: Suzanne Hoppo, SARDI, Adelaide, SA . Table 8 Avena varieties ‘Possum’ *‘Echidna’ *‘Euro’ *‘Mortlock’ *‘Potoroo’ ______________________________________________________________________________________________________________ PLANT – GROWTH HABIT intermediate intermediate semi-erect intermediate intermediate ______________________________________________________________________________________________________________ LEAF BLADE – HAIRINESS OF MARGINS OF LEAF BELOW FLAG LEAF absent weak weak very weak weak ______________________________________________________________________________________________________________ TIME OF PANICLE EMERGENCE medium medium medium early medium ______________________________________________________________________________________________________________ 22
DESCRIPTIONS PLANT VARIETIES JOURNAL 2002 VOL 15 NO. 2 STEM – INTENSITY OF HAIRINESS OF UPPER-MOST NODE absent/weak medium medium weak/medium weak ______________________________________________________________________________________________________________ PLANT – LENGTH very short very short medium medium short ______________________________________________________________________________________________________________ PLANT – HEIGHT (cm) mean 929 893 993 1163 956 std deviation 26 31 50 31 41 LSD/sig 26 P≤0.01 P≤0.01 P≤0.01 P≤0.01 ______________________________________________________________________________________________________________ ‘Wintaroo’ Application No: 2001/219 Accepted: 17 Sep 2001. Applicant: Minister for Agriculture, Food and Fisheries, Adelaide, SA. Characteristics (Table 9, Figure 54) Plant: growth habit intermediate, length (stem and panicle) long, maturity medium, seasonal type spring. Stem: hairiness of uppermost node present, intensity of hairiness of uppermost node weak. Leaf: hairiness of margins of leaf blade below the flag leaf absent or very weak. Inflorescence: orientation of branches equilateral, attitude of branches semi-erect, attitude of spikelets pendulous, length of glumes medium. Seed: husk present, primary grain tendency to be awned weak, colour yellow, glaucosity of lemma of primary grain absent, primary grain hairiness of base weak. Origin and Breeding Controlled pollination: seed parent MIOLRP-86-3 x first pollen parent ‘Echidna’ in 1987. The F 1 from this cross was then crossed to the second pollen parent, ‘Wallaroo’ in 1988. The seed parent is characterised by late maturity. The first pollen parent is characterised by dwarf plant type. The second pollen parent is characterised by moderate intolerance to stem nematode and early maturity. Hybridisation took place at the Northfield Research Laboratories, Adelaide, SA. From this cross, panicles were selected from F 3 plots at Turretfield Research Centre (located near Rosedale, SA) in 1989. Selection number four was chosen in 1995 after seven cycles of selection on the basis of hay production, and disease resistance. Selection criteria: hay yield, cereal cyst nematode resistance and tolerance, and stem nematode tolerance. Propagation: by seed. Breeder: Dr. Pamela Zwer and the Oat Breeding Team of the South Australian Research and Development Institute, Waite Campus, Urrbrae, SA. Choice of Comparators Grouping characteristics used in identifying the most similar varieties of common knowledge were – Plant: length long, maturity medium; End use: hay. On the basis of these grouping characteristics, the following comparator varieties were included in the trial: ‘Marloo’, ‘Wallaroo’, ‘Swan’, ‘Bettong’, and ‘Euro’. The pollen parent ‘Echidna’ was also included in the trial. Comparative Trial Location: Kingsford Research Centre, SA (Latitude 34º33′ Longitude 138º46′, elevation 120m), winter/spring 2001. Conditions: trial conducted in the field, sown on 29 Jun, fertiliser, herbicides and insecticides applied as required. Trial design: three replicates of each variety were sown in plots 5m x 1.3m arranged in a randomised block design. Measurements: from twenty plants at random. One sample per plant. Prior Applications and Sales No prior applications. First sold in Australia in May 2000. Description: Suzanne Hoppo, SARDI, Adelaide, SA. Table 9 Avena varieties ‘Wintaroo’ *‘Marloo’ *‘Swan’ *‘Wallaroo’ *‘Bettong’ *‘Euro’ *‘Echidna’ ______________________________________________________________________________________________________________ PLANT – GROWTH HABIT intermediate intermediate intermediate intermediate semi prostrate semi-erect intermediate ______________________________________________________________________________________________________________ LEAF BLADE – HAIRINESS OF MARGINS OF LEAF BELOW FLAG LEAF absent or absent or absent or absent or absent or weak weak very weak very weak very weak very weak very weak ______________________________________________________________________________________________________________ TIME OF PANICLE EMERGENCE medium medium early early medium medium medium ______________________________________________________________________________________________________________ STEM – HAIRINESS OF UPPERMOST NODE present present absent present present present present ______________________________________________________________________________________________________________ STEM – INTENSITY OF HAIRINESS OF UPPER-MOST NODE weak medium n/a weak weak medium medium ______________________________________________________________________________________________________________ PLANT – LENGTH long long long long long medium very short ______________________________________________________________________________________________________________ 23
Page 1 and 2: Plant Varieties Journal Quarter Two
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44. Volume 15- Number 2 - IP Australia

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