44. Volume 15- Number 2 - IP Australia

PLANT VARIETIES JOURNAL 2002 VOL 15 NO. 2
Table 9 (continued)
PLANT HEIGHT (cm)
mean 1321 1369 1260 1219 1277 1023 923
std deviation 40 28 75 46 64 54 46
LSD/sig 38 P≤0.01 P≤0.01 P≤0.01 P≤0.01 P≤0.01 P≤0.01
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PRIMARY GRAIN – TENDENCY TO BE AWNED
weak medium weak strong absent weak weak
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GRAIN – COLOUR OF LEMMA
yellow brown brown brown yellow yellow yellow
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PRIMARY GRAIN – HAIRINESS OF BASE
weak strong weak weak absent or medium or weak
very weak weak
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Bougainvillea hybrid
Bougainvillea
‘Arora’
Application No: 2000/345 Accepted: 20 Dec 2000.
Applicant: Jan and Peter Iredell, Moggill, QLD.
Characteristics (Table 10, Figure 16) Plant: growth habit
spreading, size small-medium, Stem: degree of hairiness
absent or low, thorns present, size of thorns small, thickness
of thorns thin-medium, shape of thorns concave. New
growth: presence of anthocyanin absent. Leaf: size medium,
length of blade (mean) 71.92 mm, width of blade (mean)
52.26 mm, length of petiole (mean) 21.19 mm, shape broad
ovate, shape of apex acuminate, shape of base cuneate,
undulation of margin medium, shape of cross-section
concave, curvature of longitudinal axis incurved, glossiness
of upper side weak, presence of variegation present, type of
variegation marginal, degree of variegation medium. Leaf
colour: number of colours three or more, primary (most
prevalent or obvious) colour RHS 147B, secondary colour
RHS 160A, tertiary colour RHS 191B, border between
colours clearly defined. Bract: size medium, degree of
reflex straight or low, width broad, shape of apex acute,
partly expanded number of colours one, primary colour
RHS 157B, fully expanded: number of colours two, primary
colour RHS N74B, secondary colour RHS 155C. Flower:
present, diameter small, predominant colour of visible
petals (perianth) cream, predominant colour of floral tube
white, size of floral tube small, shape of floral tube slender,
emergence of stamens absent. (Note: all RHS colour chart
numbers refer to 2001 edition.)
Origin and Breeding Spontaneous mutation: originated as
a bud-sport on Bougainvillea ‘Raspberry Ice’ at applicant’s
property during 1990. The sport was characterised by
variegated leaves, bicoloured bracts and compact growth
habit. The mutated shoot was isolated and propagated
vegetatively through six generations to confirm the
uniformity and stability of the selection. Selection criteria:
compact growth habit, variegated foliage and bract colour.
Propagation: by cuttings. Breeder: Jan Iredell, Moggill,
QLD.
Choice of Comparators Grouping characteristics used in
identifying the most similar varieties of common
knowledge were – Bract colour, and variegation of leaves.
On the basis of these grouping characteristics ‘Raspberry
Ice’, ‘Orange Stripe’ and ‘Majik’ A ’ were selected as
comparators. ‘Raspberry Ice’ is also the original parental
variety.
Comparative Trial Location: Moggill, Qld. Dec 2000-May
2002 Conditions: plants raised in soilless potting media in
200mm pots, fertilised with slow release Osmocote® added
at 5g/litre, grown under greenhouse film. Normal cultural
practices except pruning carried out during the trial. Trial
design: 6 plants each variety randomly placed.
Measurements: taken from all trial plants.
Prior Applications and Sales Nil.
Description: Jan Iredell, Moggill, QLD.
Table 10 Bougainvillea varieties
‘Arora’ *‘Majik’ A *‘Orange *‘Raspberry
Stripe’ Ice’
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PLANT: GROWTH HABIT
spreading bushy/ spreading spreading
spreading
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PLANT: SIZE
small/ medium medium/ medium/
medium large large
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STEM: SIZE OF THORNS
small medium medium medium
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STEM: SHAPE OF THORNS
concave flat flat/ concave
concave
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NEW GROWTH: PRESENCE OF ANTHOCYANIN
absent absent present present
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LEAF: UNDULATION OF THE MARGIN
medium weak weak medium
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