47. Volume 14- Number 2 - IP Australia

PLANT VARIETIES JOURNAL 2001 VOL 14 NO. 2
Table 37 continued
NUMBER OF FLORETS
mean 88.7 98.7 82.2 84.6 104.3 85.4 73.9
std deviation 19.78 20.12 23.37 18.01 25.23 20.06 21.96
LSD/sig 14.02 ns ns ns P≤0.01 ns P≤0.01
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FLORET LENGTH (mm)
mean 9.87 10.66 9.77 9.94 10.50 10.03 9.67
std deviation 0.63 0.73 0.76 0.68 0.63 0.78 0.57
LSD/sig 0.61 P≤0.01 ns ns P≤0.01 ns ns
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Triticum aestivum
Wheat
‘Koelbird’
Application No: 2001/017 Accepted: 21 Feb 2001.
Applicant: Department of Agriculture for and on behalf
of the State of New South Wales, Orange, NSW.
Agent: Moree Seed Graders Pty Ltd, Moree, NSW.
Characteristics (Table 38, Figure 46) Plant: growth habit
erect, length medium, straw pith thick. Flag leaf: glaucosity
weak. Ear: emergence early, glaucosity weak, shape
tapering, density medium to dense, colour white, awns at tip
medium. Grain: colour purple. Seasonal type: spring.
Origin and Breeding Controlled pollination: seed parent
breeding line WW1203-23 x pollen parent ‘Konini’. Initial
cross was made in 1993 and the F 1 seed was increased over
summer in the glass house. F 2 rows were sown in 1994 and
single head selections of lines that demonstrated purple
grain colour and spring growth habit were selected. These
F 3 selections were sown under irrigation in single rows over
summer in 1994. Single plants, which demonstrated spring
growth habit and purple grain colours were selected. The F 4
single plant selections were sown in observation plots in
1995 and several single plant selections were selected from
promising lines. These were sown in small-unreplicated
yield evaluation plots in 1996. RP1-97 was identified as
highest yielding purple grained line with growth habit
suited to local climatic conditions. It was entered into larger
replicated plot trials on Wagga Agricultural Institute in
1997. RP1-97-2 was selected from these plots for seed
increase in 1998. There was still some variability within this
line and further selections were taken from individual seed
increase plots that demonstrated trueness to type for
maturity and grain colour. The final selection, RP1-97-2-1
was progressed to seed increase 1999. Seed for this variety
was derived from 80 single plant selections taken from the
breeder’s trial plots. Each selection was individually
threshed and sown into plots. Each plot was carefully
checked for trueness to type of the population. Any plots
demonstrating variability were removed. The remaining
plots were harvested as a bulk line. This seed was sown in
an area of 0.1 hectare in 2000. The seed from this crop will
form the foundation seed of commercial seed and grain
crops. ‘RP1-97-2-1’ was later renamed as ‘Koelbird’.
Selection criteria: purple grain colour, high yield, resistance
to stem rust, leaf rust and stripe rust.
Choice of Comparators ‘Konini’ was chosen because it is
the pollen parent and exhibited similar purple grain colour
68
as the candidate variety. It was included to demonstrate the
physiological differences between the two varieties.
WW1203-23 was the seed parent and expresses white grain
colour. It was included to demonstrate other evident
differences. Common bread wheat varieties ‘Janz’ and
‘H 45’ were not included for their white grain colour.
Comparative Trial Location: sown on Temora Agricultural
Research and Advisory Station, Barmedman Rd, Temora
NSW. Conditions: sown into red clay soils on good
moisture at 40kg/ha seeding rate with 100kg/ha of MAP.
Trial design: randomised plots 6m x 1.42m in 2 replicates.
Data collection: 10 specimens per replicate randomly
selected from 1,750 plants per plot.
Prior Applications and Sale Nil.
Description: Paul Breust, NSW Agriculture, Temora, NSW.
Table 38 Triticum varieties
‘Koelbird’ *‘Konini’ *WW1203-23
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PLANT HEIGHT (cm)
mean 90.50 107.27 88.15
std deviation 3.85 3.30 5.57
LSD/sig 6.25 P≤0.01 ns
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GROWTH HABIT
erect intermediate semi erect
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FLAG LEAF ANTHOCYANIN COLOURATION OF
AURICLES
absent absent absent
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EAR EMERGENCE
early very late early-medium
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FLAG LEAF GLAUCOSITY
weak- medium- medium
medium weak
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EAR GLAUCOSITY
weak weak medium-weak
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STRAW PITH IN CROSS SECTION
thick thick medium-thick
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EAR DENSITY
medium- dense mediumdense
dense
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