49. Volume 14- Number 1 - IP Australia

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PLANT VARIETIES JOURNAL 2001 VOL 14 NO. 1 terminal compound cyme, pedicel length short. Flower: solitary, rotate-funnelform, 5 lobed, diameter small (average 16.3mm), length short (average 14.8mm), margin entire, colour white (RHS 155D), bud yellow-green (RHS 154D) with anthocyanin weakly, greyed-purple (RHS 185D), calyx shape salverform, sepal length medium (average 6.7mm), sepal colour greyed-orange (RHS 172B) with streaks yellow-green (RHS 144B-C), inferior ovary colour yellow-green (RHS 144B-C). (Note: all RHS colour chart numbers refer to 1995 edition). Origin and Breeding Spontaneous mutation: Abelia xgrandiflora ‘Compacta’. Selection took place in MacLeans Ridges, NSW in 1994. Selection criteria: compact growth habit. Propagation: a number of mature stock plants were generated from this mutation through vegetative cuttings and were found to be uniform and stable. ‘Short & Sweet’ will be commercially propagated by vegetative cuttings from the stock plants. Breeder: Robert Pearce, MacLeans Ridges, NSW. Choice of Comparators ‘Compacta’ was selected as a comparator as it represents the source material from which the new variety arose and is the most similar variety. All other Abelia xgrandiflora varieties have much larger growth habits or variegated foliage and were rejected as comparators. Comparative Trial Location: Kincumber, NSW, springsummer 2000. Conditions: trial conducted open beds, plants propagated vegetatively from cuttings, rooted cuttings planted into 200 pots filled with soilless potting mix, nutrition maintained with slow release and liquid fertilisers. No pest and disease treatments were required. Trial design: fifteen pots of each variety arranged in a completely randomised design. Measurements: from ten plants at random. One sample per plant. Prior Applications and Sales No prior applications. First sold in Australia in Aug 1998. Description: Ian Paananen, Crop & Nursery Services Central Coast, NSW Table 1 Abelia varieties ‘Short & Sweet’ *‘Compacta’ ____________________________________________________ PLANT HEIGHT (cm) mean 24.8 38.4 std deviation 3.3 5.3 LSD/sig 5.1 P≤0.01 ____________________________________________________ PLANT WIDTH (cm) mean 47.6 78.9 std deviation 3.8 8.5 LSD/sig 7.5 P≤0.01 ____________________________________________________ INTERNODE LENGTH (mm) mean 17.0 25.0 std deviation 3.3 7.0 LSD/sig 6.2 P≤0.01 ____________________________________________________ LEAF LENGTH (mm) mean 25.7 35.2 std deviation 3.4 5.6 LSD/sig 5.2 P≤0.01 ____________________________________________________ LEAF LENGTH: WIDTH RATIO mean 1.9 2.8 std deviation 0.17 0.11 LSD/sig 0.16 P≤0.01 ____________________________________________________ LEAF SHAPE ovate lanceolate-ovate ____________________________________________________ FLOWER DIAMETER (mm) mean 16.3 19.0 std deviation 1.4 0.9 LSD/sig 1.3 P≤0.01 ____________________________________________________ FLOWER LENGTH (mm) mean 14.8 23.2 std deviation 2.4 1.7 LSD/sig 2.3 P≤0.01 ____________________________________________________ FLOWER COLOURS (RHS, 1995) main colour white 155D white 155D anthocyanin greyed-purple greyed-purple (intensity) 185D (weak) 185B (medium) bud yellow-green yellow-green 154D 154D sepals greyed-orange greyed-orange 172B streaked 173A streaked with 144B-C with 146C-D ovary yellow-green yellow-green 144B-C 146C-D ____________________________________________________ SEPAL LENGTH (mm) mean 6.7 7.5 std deviation 0.6 0.6 LSD/sig 0.7 P≤0.01 ____________________________________________________ Acacia cognata Bower Wattle ‘UY2’ Application No: 1999/343 Accepted: 17 Dec 1999. Applicant: Austraflora Pty Ltd, Dixon’s Creek, VIC. Characteristics (Table 2, Figure 23) Plant: habit low spreading, medium to dense shrub, tips of branches pendulous. Stem: light grey with medium internodes. Leaf: broad linear (average 61.8 x 4mm), mature leaf colour green (RHS 139A), young leaf greyed orange (RHS 166A) tip growth greyed orange (RHS 166A). Flower: ball shaped, axillary, pedunculate, yellow (RHS 2B). (Note: All RHS colour chart numbers refer to 1986 edition.) Origin and Breeding Open pollination followed by seedling selection: a number of Acacia cognata plants were planted in a plantation at Dixon’s Creek, VIC in 1980. One of these exhibited a smaller, more compact habit. Seed from open pollination was germinated in 1994, and from approximately 100 seedlings, several exhibiting compact or dwarf forms were selected and grown on. ‘UY2’ was one of those seedlings. The seed parent whilst being much more dwarf and compact than the normal form of Acacia cognata differs from this candidate in being an upright shrub of 2.5 16
DESCRIPTIONS PLANT VARIETIES JOURNAL 2001 VOL 14 NO. 1 metres. Selection criteria: dwarf habit. Propagation: vegetatively through five generations. Breeder: Bill Molyneux, Dixon’s Creek, VIC. Choice of Comparators The two comparators, ‘UY3’ and ‘Green Mist’ A were chosen as the most similar varieties of common knowledge. ‘UY3’ is a sister line from the same seed batch. ‘Green Mist’ A was chosen because of its similarities in leaf length to width ratios and leaf colour. The parent was not included due to its obviously larger shrub habit. No other similar varieties of common knowledge have been identified. 250mm pots, in a random pattern into standard pinebarkbased growing medium containing appropriate slow release fertiliser. Trial design: twelve selections of each variety in a completely randomised design. Measurements: ten measurements from each of ten plants were undertaken in a random pattern, but from the same position on each plant. Prior Applications and Sales Nil. Description: William (Bill) M Molyneux, Dixon’s Creek, VIC. Table 2 Acacia varieties Comparative Trial Location: Dixon’s Creek, VIC, between Nov 1999 – Sep 2000. Conditions: trial conducted in the open air. Plants potted from 10cm tumblers into 250mm pots, in a random pattern into standard pinebarkbased growing medium containing appropriate slow release fertiliser. Trial design: twelve selections of each variety in a completely randomised design. Measurements: ten measurements from each of ten plants were undertaken in a random pattern, but from the same position on each plant. Prior Applications and Sales Nil. Description: William (Bill) M Molyneux, Dixon’s Creek, VIC. ‘UY3’ Application No: 1999/393 Accepted: 23 Dec 1999. Applicant: Austraflora Pty Ltd, Dixon’s Creek, VIC. Characteristics (Table 2, Figure 23) Plant: habit compact, medium density. Stem: procumbent, internodes short. Leaf: narrow linear (average 35.5mm x 1.2mm), mature leaf colour green (RHS 137A), young leaf green (RHS 143B), tip growth yellow green (RHS 152A). Flower: ball shaped, axillary, pedunculate, yellow (RHS 4C). (Note: All RHS colour chart numbers refer to 1986 edition.) Origin and Breeding Open pollination followed by seedling selection: a number of Acacia cognata plants were planted in a plantation at Dixon’s Creek, VIC in 1980. One of these exhibited a smaller, more compact habit. Seed from open pollination was germinated in 1994, and from approximately 100 seedlings, several exhibiting compact or dwarf forms were selected and grown on. ‘UY3’ was one of those seedlings. The seed parent whilst being much more dwarf and compact than the normal form of Acacia cognata differs from this candidate in being an upright shrub of 2.5 metres. Selection criteria: dwarf habit. Propagation: vegetatively through five generations. Breeder: Bill Molyneux, Dixon’s Creek, VIC. Choice of Comparators The two comparators, ‘UY2’ and ‘Green Mist’ A were chosen as the most similar varieties of common knowledge. ‘UY2’ is a sister line from the same seed batch. ‘Green Mist’ A was chosen because of its similarities in leaf length to width ratios and leaf colour. The parent was not included due to its obviously larger shrub habit. No other similar varieties of common knowledge have been identified. Comparative Trial Location: Dixon’s Creek, VIC, between Nov 1999 – Sep 2000. Conditions: trial conducted in the open air. Plants potted from 10cm tumblers into ‘UY3’ ‘UY2’ *‘Green Mist’ A ____________________________________________________ PLANT HABIT procumbent low spreading low spreading shrub shrub, tips shrub pendulous slightly weeping ____________________________________________________ PLANT DENSITY medium medium to dense dense ____________________________________________________ PLANT BRANCHLET: INTERNODE LENGTH short medium short ____________________________________________________ PLANT HEIGHT (cm) at 11 months LSD (P≤0.01) = 4.0 mean 6.6 c 32.1 a 25.5 b std deviation 1.9 3.7 4.8 ____________________________________________________ PLANT width (cm) at 11 months LSD (P≤0.01) = 15.0 mean 67.2 b 91.8 a 55.0 b std deviation 9.1 21.1 6.5 ____________________________________________________ LEAF LENGTH (mm) LSD (P≤0.01) = 7.2 mean 35.5 b 61.8 a 63.5 a std deviation 13.0 8.7 6.5 ____________________________________________________ LEAF WIDTH (mm) LSD (P≤0.01) = 0.4 mean 1.2 c 4.0 a 2.1 b std deviation 0.3 0.6 0.3 ____________________________________________________ LEAF COLOUR (RHS, 1986) mature 137A 139A 137A new growth 143B 166A 137A tip colour 152A 166A 147A anthocyanin in new growth absent present absent ____________________________________________________ FLOWER COLOUR (RHS, 1986) 4C 2B 2B ____________________________________________________ Means followed by the same letter are not significantly different at P≤0.01, Duncan’s Multiple Range Test Agapanthus inapertus x orientalis Agapanthus ‘Blue Brush’ Application No: 1999/271 Accepted: 27 Sep 1999. Applicant: Lifetech Laboratories Limited, Auckland, New Zealand. Agent: Avondale Nurseries Limited, Glenorie, NSW. Characteristics (Table 3, Figure 7) Plant: habit arching, evergreen, height tall. Leaf: upright, arching, length long 17
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49. Volume 14- Number 1 - IP Australia

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