44. Volume 15- Number 2 - IP Australia

PLANT VARIETIES JOURNAL 2002 VOL 15 NO. 2
Table 43 (continued)
NUMBER OF STEM INTERNODES (>0.5cm)
mean 12.1 12.0 9.8 10.6 9.8 13.4 12.3 8.7 11.8 22.9 8.6 11.7
std deviation 2.6 2.2 2.4 2.9 2.4 2.0 2.8 2.4 2.1 2.9 2.6 2.8
LSD/sig 1.2 ns P≤0.01 P≤0.01 P≤0.01 P≤0.01 ns P≤0.01 ns P≤0.01 P≤0.01 ns
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LEAF LENGTH (mm) – Central terminal leaflet
mean 22.9 26.3 30.6 31.2 28.2 24.3 28.5 32.0 34.7 30.9 36.2 31.6
std deviation 4.6 4.7 6.9 5.3 5.2 3.9 5.0 5.5 7.2 4.8 6.0 5.9
LSD/sig 2.5 P≤0.01 P≤0.01 P≤0.01 P≤0.01 ns P≤0.01 P≤0.01 P≤0.01 P≤0.01 P≤0.01 P≤0.01
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LEAF WIDTH (mm) – Central terminal leaflet
mean 8.9 10.2 10.6 12.1 11.9 7.9 11.1 13.3 13.8 12.2 14.7 13.2
std deviation 1.91 2.22 2.7 2.7 2.8 1.8 2.6 3.0 3.3 3.8 3.1 3.0
LSD/sig 1.1 P≤0.01 P≤0.01 P≤0.01 P≤0.01 ns P≤0.01 P≤0.01 P≤0.01 P≤0.01 P≤0.01 P≤0.01
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PLANT GROWTH HABIT
prostrate semi semi- interm- interm- semi- semi- interm- erect semi- erect semi-erect
prostrate erect ediate ediate prostrate prostrate ediate erect
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STEM DENSITY
very high medium medium medium very interm- medium medium medium low low
high -low -high -high high ediate -high -low -low
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STEM DENSITY OF HAIRS (4th internode)
medium interm- medium interm- interm- interm- interm- medium medium low high low
ediate ediate ediate ediate ediate
-high -high -low -high -high
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PLANTS WITH LEAF MARKING (%)
98 92 90 92 88 94 94 100 97 87 93 94
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FLOWER COLOUR PERCENTAGE
Light purple (RHS 75A-C)
0 0 8 5 50 4.5 9.5 16 27 13 3 4
Medium purple (RHS 77 C-D)
45 52.5 76 83.5 46 77.5 73.5 72 62.5 80 59 79
Dark purple (RHS 77 B)
54 47.5 14 11.5 3 18 17 11 8.5 7 38 17
Other – – 2 white – 1 cream – – 1 white 2 white – – –
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Triticum aestivum
Wheat
‘QT8750’
Application No: 2001/075 Accepted: 28 May 2001.
Applicant: The State of Queensland through its
Department of Primary Industries Brisbane, QLD, and
Grains Research and Development Corporation, Barton,
ACT.
Characteristics (Table 44, Figure 50) Plant: growth habit
semi-erect during tillering, height medium (mean 81cm).
Flag leaf: shape strongly recurved, anthocyanin colouration
of auricles absent or very weak, glaucosity of sheath
medium. Stem: pith in cross section thin. Ear: glaucosity
strong, shape in profile parallel, density medium (mean
internode length 5.1mm), length long (mean 116mm),
colour white, awns present. Awns: length medium to long
(mean 54mm). Lower glume: beak length short (mean
3.5mm). Grain: colour white, texture hard. Time of
maturity: medium. Seasonal type: spring type.
Origin and Breeding Controlled pollination: recurrent
pollen parent ‘Batavia’ was crossed to non-recurrent seed
parent ‘Pelsart’ in 1991 and backcrossed in 1993. Doubled
haploid lines 1 were derived from the ova of the BC 1 F 1 , and
multiplied and selected during 1993 – 95 at the Leslie
Research Centre, Oakleigh Park and Wellcamp Farm. The
selected line designated as ‘QT8750’ was evaluated in strain
and regional trials, a range of disease resistance and tolerance
tests, and in milling and baking tests in 1996 – 2001. It was
also evaluated in the 1999 Disease Progress Nurseries of the
Plant Breeding Institute, Cobbitty, NSW. ‘QT8750’ was
finally selected for release on the basis of the combined
results from all of these. ‘QT8750’ was developed as a
typically intermediate maturing winter-sown wheat well
adapted to the northern wheat growing region of Australia. It
has shown outstanding quality characteristics for leavened
bread, and excellent colour and colour stability for yellow
alkaline noodles. Selection criteria: high yield, good
agronomic characteristics, and desirable domestic and export
quality. Propagation: seed produced by self-pollination
through at least two generations. Breeder: P M Banks,
Department of Primary Industries, Toowoomba, QLD.
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