44. Volume 15- Number 2 - IP Australia

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PLANT VARIETIES JOURNAL 2002 VOL 15 NO. 2 Table 19 (continued) FLAG LEAF: GLAUCOSITY OF SHEATH medium-strong medium-strong medium strong medium medium-strong ______________________________________________________________________________________________________________ TIME OF EAR EMERGENCE, (FIRST SPIKELET VISIBLE ON 50% OF EARS) medium medium medium medium early early-very early ______________________________________________________________________________________________________________ AWNS: INTENSITY OF ANTHOCYANIN COLOURATION OF TIPS medium medium-strong strong medium-strong weak weak-very weak ______________________________________________________________________________________________________________ EAR: GLAUCOSITY absent absent weak weak weak weak or very weak or very weak ______________________________________________________________________________________________________________ EAR: ATTITUDE semi-erect horizontal semi-erect horizontal semi-erect erect-semi recurved ______________________________________________________________________________________________________________ PLANT: LENGTH (STEM, EAR AND AWNS) (cm) mean 84.23 110.93 102.63 102.4 103.13 101.93 std deviation 2.38 1.76 0.29 2.95 3.76 2.02 LSD/sig 5.78 P≤0.01 P≤0.01 P≤0.01 P≤0.01 P≤0.01 ______________________________________________________________________________________________________________ EAR: SHAPE parallel parallel parallel parallel parallel tapering ______________________________________________________________________________________________________________ EAR: DENSITY medium lax lax lax medium medium ______________________________________________________________________________________________________________ EAR: LENGTH EXCLUDING AWNS (mm) mean 99.5 104.31 116.11 116.13 96.23 89.11 std deviation 2.84 0.71 3.87 2.43 3.56 2.24 LSD/sig 7.28 ns P≤0.01 P≤0.01 ns P≤0.01 ______________________________________________________________________________________________________________ AWN: LENGTH (mm) mean 100.69 142.11 150.31 159.63 163.97 156.05 std deviation 6.23 8.19 10.46 10.13 8.56 6.23 LSD/sig 19.36 P≤0.01 P≤0.01 P≤0.01 P≤0.01 P≤0.01 ______________________________________________________________________________________________________________ RACHIS: CURVATURE OF FIRST SEGMENT weak absent absent medium absent absent or very weak or very weak or very weak or very weak ______________________________________________________________________________________________________________ STERILE SPIKELET: ATTITUDE (IN MID THIRD OF EAR) parallel to parallel parallel parallel parallel parallel weakly divergent ______________________________________________________________________________________________________________ MEDIAN SPIKELET: LENGTH OF GLUME AND ITS AWN RELATIVE TO GRAIN equal equal longer longer equal longer ______________________________________________________________________________________________________________ GRAIN: RACHILLA HAIR TYPE long short short long short short ______________________________________________________________________________________________________________ GRAIN: ANTHOCYANIN COLOURATION OF LEMMA medium strong absent absent absent absent or very weak or very weak or very weak or very weak ______________________________________________________________________________________________________________ GRAIN: SPICULATION OF INNER LATERAL NERVES OF DORSAL SIDE OF LEMMA absent absent absent absent medium absent or very weak or very weak or very weak or very weak or very weak ______________________________________________________________________________________________________________ GRAIN: DISPOSITION OF LODICULES clasping clasping clasping clasping frontal frontal ______________________________________________________________________________________________________________ 36
DESCRIPTIONS PLANT VARIETIES JOURNAL 2002 VOL 15 NO. 2 ‘Torrens’ Application No: 2001/123 Accepted: 10 May 2001. Applicant: Luminis Pty Ltd, Adelaide University, Adelaide, SA and The Grains Research and Development Corporation, Barton, ACT. Characteristics (Table 20, Figure 52) Plant: growth habit erect, length medium. Lower leaves: hairiness of leaf sheaths absent. Flag Leaf: anthocyanin colouration of auricles present, intensity of anthocyanin colouration of auricles medium, glaucosity of sheath weak. Time of ear emergence: medium to early. Ear: attitude semi-recurved, length medium, number of rows two, density medium, shape tapering, glaucosity weak. Awns: length compared to ear medium, anthocyanin colouration of tips present, intensity of anthocyanin colouration of tips medium, spiculation of margins absent. Rachis: length of first segment short-medium, curvature of first segment medium. Sterile spikelet: attitude divergent. Median spikelet: length of glume and its awn relative to grain shorter. Grain: rachilla hair type short, husk absent, spiculation of inner lateral nerves of dorsal side of lemma absent, hairiness of ventral furrow absent. Kernel: colour of aleurone layer weakly coloured. Seasonal type: spring. Origin and Breeding Controlled pollination: seed parent ‘Galleon’ x pollen parent ‘CIMMYT 42002’. The seed parent is characterised by weak intensity of anthocyanin colouration of the auricles, medium-early time to ear emergence, weak intensity of anthocyanin colouration of the tips of the awns, short awns compared to the ears length, medium curvature of the first segment of the rachis, an absence of hair in the ventral furrow and the presence of grain husk. The pollen parent is characterised by strong anthocyanin colouration of the auricles, medium-late time to ear emergence, strong intensity of anthocyanin colouration of the awns, short awns compared to the ear length, weak curvature of the first rachis segment, an absence of hair in the ventral furrow and an absence of grain husk. Hybridisation took place at the Waite Campus, Adelaide University in 1989. From this cross, F 3 derived selection number 78 was tested in Adelaide University Stage 3, SARDI Stage 3 and 4 trials between 1995 and 2001 and selected on the basis of agronomic, disease resistance and grain quality data. Selection criteria: high grain yield potential, desirable agronomic characteristics and resistance to cereal cyst nematode for cultivation in South Australia. Propagation: approximately 100 cereal cyst nematode resistant reselections were made in 1998 and were multiplied in a summer nursery at Langhorne Creek, South Australia. From these, 80 of the highest yielding populations were subsequently multiplied at Turretfield Research Station, South Australia during 2000. The most phenotypically similar selections were bulked to produce approximately 2.5 tonnes of pure seed and used to sow commercial scale seed production at two locations (Charlick Experimental Research Station, South Australia and Dimboola, Victoria) in 2001. Breeder: Dr David Sparrow, Ms Amanda Box and Professor Andrew Barr, SA Barley Improvement Program, Department of Plant Science, Waite Campus, Adelaide University, SA. Choice of Comparators Grouping characteristics used in identifying the most similar varieties were– Lower leaves: hairiness of leaf sheaths absent, Flag leaf: anthocyanin colouration of auricles present, Awns: anthocyanin colouration of tips present, Ear: number of rows two, Seasonal type: spring. On this basis, the following comparator genotypes were included in the trial: ‘CIMMYT 42002’ (pollen parent), ‘Galleon’ (seed parent), ‘Schooner’ (husked), ‘Morrell’ (hulless) and ‘Namoi’ (hulless). Comparative Trial Location: sown at Charlick Experimental Research Station, Strathalbyn, SA (Latitude 35º29′ South, Longitude 135º89′ East). Conditions: sown into a calcareous loam over limestone marl sub-soil 15 Jul, 2001. Trial design: genotypes arranged in a 3-replicate randomised complete block design. Measurements: qualitative traits (e.g. time of ear emergence) were measured on a whole plot basis, whereas quantitative traits (ear length excluding awns) were measured on 15 randomly sampled plants from a single replicate. Prior Applications and Sales Nil. Description: Andrew Barr and Amanda Box, SA Barley Improvement Program, Department of Plant Science, Waite Campus, Adelaide University, Adelaide, SA. Table 20 Hordeum varieties ‘Torrens’ *‘Galleon’ *‘Schooner’ *‘CIMMYT *‘Morrell’ *‘Namoi’ 42002’ ______________________________________________________________________________________________________________ PLANT: GROWTH HABIT erect prostrate erect erect erect erect ______________________________________________________________________________________________________________ FLAG LEAF: INTENSITY OF ANTHOCYANIN COLOURATION OF AURICLES medium weak weak strong strong medium ______________________________________________________________________________________________________________ TIME OF EAR EMERGENCE medium-early medium-early medium medium-late medium-late medium ______________________________________________________________________________________________________________ PLANT LENGTH (stem, ear and awns) (cm) – to tip of awns mean 69 71 76 85 84 78 std deviation 1.00 3.61 1.00 5.57 2.08 0.00 LSD/sig 2.41 ns P≤0.01 P≤0.01 P≤0.01 P≤0.01 ______________________________________________________________________________________________________________ 37
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44. Volume 15- Number 2 - IP Australia

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