49. Volume 14- Number 1 - IP Australia

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PLANT VARIETIES JOURNAL 2001 VOL 14 NO. 1 Table 18 continued LEAF ANGLE (degree) LSD (P≤0.01)=1.38 mean 14.9 b 10.05 a 26.1 c 24.75 c 15.6 b std deviation 0.54 0.59 3.90 0.43 0.80 ______________________________________________________________________________________________________________ FIRST FLOWERING (date) 14-Jun 29-Jun 16-Jul 11-Jun 12-Jul very early early medium very early medium ______________________________________________________________________________________________________________ FLOWER DENSITY medium medium medium-dense medium sparse-medium ______________________________________________________________________________________________________________ FLOWER DIAMETER (mm) LSD (P≤0.01)=0.50 mean 17.05 d 13.75 b 15.75 c 12.30 a 15.35 c std deviation 0.74 0.70 0.77 0.46 0.55 ______________________________________________________________________________________________________________ BUD MAIN COLOUR WITH CUP (RHS, 1986) 34A 157C 43B 45A 46A orange-red green-white red red red ______________________________________________________________________________________________________________ BUD COLOUR WITHOUT CAP (RHS, 1986) 65D 155A 155A 155B 158C pink white white white yellow white ______________________________________________________________________________________________________________ PETAL COLOUR AT FIRST OPENING (RHS, 1986) 155B white 155B 155B 155B 155D – 65D pink white white white white ______________________________________________________________________________________________________________ PETAL COLOUR AT TWO WEEKS AFTER OPENING (RHS, 1986) 155C 155A 155B 155A 155D white white white white white – 62C pink ______________________________________________________________________________________________________________ PETAL COLOUR AT SIX WEEKS AFTER OPENING (RHS, 1986) 155A white 155A 155B 155A white 62C – 78C with pink at base white white – 80D violet at tips purple ______________________________________________________________________________________________________________ NECTARY COLOUR AT FIRST OPENING (RHS, 1986) 144C 150A 160A 153B 153C yellow green yellow green greyed yellow yellow green yellow green ______________________________________________________________________________________________________________ NECTARY COLOUR AT TWO WEEKS AFTER OPENING (RHS, 1986) 151A yellow 153C yellow 153C yellow 178A greyed red 153C yellow green green – 173B green green – 173B greyed orange greyed orange ______________________________________________________________________________________________________________ NECTARY COLOUR AT SIX WEEKS AFTER OPENING (RHS, 1986) 173A 153C 153C 187A 173B greyed orange yellow. green yellow green greyed purple greyed orange ______________________________________________________________________________________________________________ STAMINODIA OUTLINE narrow narrow narrow narrow narrow triangular triangular triangular triangular triangular ______________________________________________________________________________________________________________ STAMINODIA COLLAR COLOUR (RHS, 1986) white yellow white white white pink ______________________________________________________________________________________________________________ STYLE COLOUR pink white white white-pink pink ______________________________________________________________________________________________________________ CALYX TUBE FURROWING absent-slight medium absent-slight absent-slight absent-slight ______________________________________________________________________________________________________________ CALYX TUBE OUTLINE flared conical flared conical conical ______________________________________________________________________________________________________________ CALYX TUBE DIAMETER (mm) LSD(P≤0.01)=0.16 mean 7.14 b 7.21 b 7.30 bc 7.05 b 6.83 a std deviation 0.20 0.24 0.22 0.15 0.21 ______________________________________________________________________________________________________________ CALYX TUBE MID-POINT COLOUR (RHS, 1986) 150B 144C 144C 173A 144B yellow green yellow green yellow green yellow green greyed orange – 173A greyed orange ______________________________________________________________________________________________________________ Note: mean values followed by the same letter are not significantly different at P ≤0.01 according Duncan’s Multiple Range Test. 40
DESCRIPTIONS PLANT VARIETIES JOURNAL 2001 VOL 14 NO. 1 Chamelaucium uncinatum x Chamelaucium axillare Waxflower ‘My Sweet Sixteen’ Application No: 1998/250 Accepted: 2 Dec 1998. Applicant: Western Flora, Coorow, WA. Characteristics (Table 19, Figure 16) Plant: habit bushy, height medium. Stem: thickness medium, branch angles medium. Leaf: length medium, thickness medium, apex acute, angle erect. Flower: season spring, distal narrow, flower type single, dense, size small-medium, bud main colour with cap green (RHS 137D), apical colour with cap lost white (RHS 155D), young flower petal colour white (RHS 155D), petal colour development fast, petal main colour at mid maturity red-purple (RHS 62A), young flower nectary colour yellow-green (RHS 146A), flower nectary colour at mid maturity yellow-green (RHS 144A-B), staminodia outline medium, staminodia collar colour red, calyx tube mature colour pink (RHS 56C), style mature colour red-purple, calyx tube longitudinal furrowing strong, outline flared, mid point colour yellow-green (RHS 144B). (Note: All RHS colour chart numbers refer to 1986 edition.) Origin and Breeding Controlled pollination: seed parent ‘Snowflake’ x pollen parent Chamelaucium axillare. The seed parent is more vigorous, narrower leaves, flowers white maturing to pale pink. The pollen parent is not bushy, lighter colour and thicker leaves, sparser and larger flowers, mature flower colour not uniform. Hybridisation took place at Western Flora, Coorow, WA in 1993. Nine mature fruit were recovered from the seed parent and five embryos were rescued and germinated in vitro. Seedlings were multiplied in vitro to a sufficient number to deflask and grow in the nursery. Plants were potted into 180mm plastic pots and grown to flowering stage. Selection criteria: ‘My Sweet Sixteen’ was selected for its stability, uniform habit, rich green leaves, flower density and colour, flowering time. Propagation: vegetative. Breeder: Brian Jack, Coorow, WA. Choice of Comparators Both parents, ‘Snowflake’ and C. axillare, were chosen as comparators as they are the closest varieties of common knowledge. Comparative Trial Location: Coorow, WA. Latitude 30º S, longitude 116º E, elevation 170m. Conditions: the trial was conducted in a shade house with 50% knitted green shade cloth roof. Plants were potted into 180mm black plastic pots, potting mix, sand coco peat perlite with slow release fertiliser and micronutrients. Media was steam/air treated at 62º C for 30 mins then cooled rapidly to ambient temperature. Plants were regularly sprayed with fungicides and with insecticides when necessary. Trial design: 10 pots of each variety were arranged in random in rows. Measurements: taken at random from all trial plants. Prior applications and sales No prior applications. First sold in Australia in Aug 1998. Description: Brian Jack, Coorow, WA. Table 19 Chamelaucium varieties ‘My Sweet *‘Snowflake’ *C. axillare Sixteen’ ____________________________________________________ STEM: THICKNESS medium medium thin-medium ____________________________________________________ LEAF: LENGTH (MATURE NON-AXILLARY LEAVES) medium medium-long medium-long ____________________________________________________ LEAF: THICKNESS (MATURE NON-AXILLARY LEAVES) medium medium thick ____________________________________________________ LEAF: ANGLE WITH FLOWERING STEM erect erect semi-erect ____________________________________________________ TIME OF BEGINNING OF FLOWERING late medium late ____________________________________________________ FLOWERING BRANCHES: PREDOMINANT LOCATION OF FLOWERS narrow narrow broad ____________________________________________________ FLOWER: DENSITY dense dense medium ____________________________________________________ FLOWER: DIAMETER small- medium medium medium ____________________________________________________ BUD: MAIN COLOUR WITH BUD CAP (RHS, 1986) 137D 138A 137B ____________________________________________________ PETAL: COLOUR DEVELOPMENT fast slow medium ____________________________________________________ PETAL: MAIN COLOUR AT MID-MATURITY (RHS, 1986) 62A 56C 61B ____________________________________________________ YOUNG FLOWER: NECTARY COLOUR (RHS, 1986) 146A 146C 144C ____________________________________________________ FLOWER NECTARY: COLOUR AT MID-MATURITY (RHS, 1986) 144A-B 187A 145B ____________________________________________________ STAMINODIA: OUTLINE medium narrow medium ____________________________________________________ STAMINODIA: COLLAR COLOUR red pink pink ____________________________________________________ CALYX LOBE: COLOUR (MATURE) (RHS, 1986) 56C 155D 61A ____________________________________________________ STYLE: COLOUR (MATURE) red-purple white pink-purple ____________________________________________________ CALYX TUBE: LONGITUDINAL FURROWING strong strong slight ____________________________________________________ CALYX TUBE: MID POINT COLOUR (RHS, 1986) 144B 153A 144 A ____________________________________________________ 41
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49. Volume 14- Number 1 - IP Australia

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