53. Volume 13- Number 1 - IP Australia

DESCRIPTIONS
PLANT VARIETIES JOURNAL 2000 VOL 13 NO. 1
Origin and Breeding Controlled pollination: seed parent
94606 x pollen parent ‘Sicot 189’ A at Australian Cotton
Research Institute (ACRI), Narrabri, NSW. The seed parent
is distinguished by its segregating glyphosate tolerance. The
pollen parent is distinguished by its susceptibility to
glyphosate. This cross was the third backcross of ‘Sicot
189’ A onto a line transformed with a Monsanto glyphosate
tolerance gene. The first cross was carried out at St. Louis,
USA and the F1 sent to quarantine at CSIRO Plant Industry
in Canberra, Australia where the first backcross was carried
out using ‘Sicot 189’ A . Two subsequent backcrosses using
‘Sicot 189’ A as the recurrent parent were carried out at
ACRI. At all stages progeny were screened for the
glyphosate tolerance gene and a marker gene. Following the
final backcross selfing was done and single plant selection
followed by progeny row and multiple environment trials
were carried out. Selection criteria: glyphosate tolerance,
resistance to bacterial blight and Verticillium wilt, leaf
hairiness, fibre quality and yield. Propagation: by seed.
Breeder: Mr P E Reid, CSIRO Plant Industry, Cotton
Research Unit, Narrabri, NSW.
Choice of Comparators ‘Sicot 189’ A was chosen because
it is the recurrent parent and the most similar variety of
common knowledge. The parent 94606 was not considered
as a comparator because it is easily distinguished from
‘Sicot 189RR’ because of its segregating glyphosate
tolerance.
Comparative Trials Comparator: ‘Sicot 189’ A . Trial
location: ACRI, Narrabri, NSW, 1998 – 99 summer.
Morphology and fibre quality trial conditions: field grown
irrigated trial with conventional management. Trial design:
15 entry trial in a row and column design with three
replicates and three row x 14m plots. Measurements:
morphological measurements on 10 plants from each plot.
Lint % and fibre quality measurements taken on a 50 boll
sample from the centre row of each plot. Fibre quality was
measured on a Zellweger Uster HVI 900 instrument.
Glyphosate tolerance trial conditions: glasshouse trial using
255mm pots. Trial design: four pots containing four plants
each for each treatment in a completely randomised design.
Standard commercial dose of Glyphosate was sprayed onto
plants at the 4 leaf stage.
Prior Application and sales Nil.
Description: Peter Reid, CSIRO Plant Industry, Cotton Research Unit,
Narrabri, NSW.
Table 20 Gossypium varieties
‘Sicot 189RR’ * ‘Sicot 189’ A
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PLANT WILTING 7 DAYS AFTER GLYPHOSATE
APPLICATION
no wilting severe wilting
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PLANT DAMAGE 14 DAYS AFTER GLYPHOSATE
APPLICATION
no damage dead
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Hordeum vulgare
Barley
‘Lindwall’
Application No: 1998/044 Accepted: 18 May 1998.
Applicant: The State of Queensland through its
Department of Primary Industries, Brisbane, QLD and
The Grains Research and Development Corporation,
Barton, ACT.
Characteristics (Table 21, Figure 52) Plant: growth habit
intermediate, height medium. Lower leaves: hairiness of
leaf sheath absent. Flag Leaf: anthocyanin colouration of
auricles present, intensity of anthocyanin colouration of
auricles medium, glaucosity of sheath strong. Inflorescence:
time of ear emergence medium-late. Awns: length
compared to ear short, anthocyanin colouration of tips
present, intensity of anthocyanin colouration of tips
medium, spiculation of margins present. Ear: attitude semierect,
length medium, number of rows two, density
medium, shape parallel, glaucosity weak. Rachis: length of
first segment short, curvature of first segment weak. Sterile
spikelet: attitude divergent. Median spikelet: length of
glume and awn relative to grain equal. Grain: rachilla hair
type short, husk present, spiculation of inner lateral nerves
of dorsal side of lemma medium, hairiness of ventral furrow
absent, disposition of lodicules clasping. Kernel: colour of
aleurone layer whitish.
Origin and Breeding Controlled pollination: seed parent
‘Triumph’ x pollen parent ‘Grimmett’. The seed parent is
characterised by semi-prostrate growth habit, mediumstrong
intensity of anthocyanin colouration of the auricles,
weak intensity of anthocyanin colouration of the tips of the
awns, tapering ear shape, equal length of awns compared to
the ears and long rachilla hair. The pollen parent is
characterised by semi-erect growth habit, very strong
anthocyanin colouration of the auricles, medium time to ear
emergence, strong intensity of anthocyanin colouration of
the awns, medium plant height, lax ear density, equal length
of awns compared to the ears, medium length of the first
rachis segment, strong curvature of the first rachis segment
and parallel to weakly divergent attitude of the sterile
spikelets. Hybridisation took place in Warwick,
Queensland, Australia in 1981. From this cross, F2 derived
line number 121 was tested in field trials between 1984 and
1989 and selected on the basis of agronomic, plant
pathology and grain quality data. Reselection number 121-
1 was selected in trials from 1990 to 1995 on the basis of
agronomic, plant pathology and grain quality data.
Selection criteria: high grain-yield potential, suitable
agronomic characteristics for cultivation in Queensland and
northern New South Wales and potential for use in
industrial malting and brewing. Propagation: by seed.
Breeder: Dr Raymond Paul Johnston, Queensland
Department of Primary Industries – Farming Systems
Institute, Hermitage Research Station, Warwick, QLD.
Choice of Comparators ‘Gairdner’ A , ‘Gilbert’ and
‘Tallon’ were chosen for the comparative trial, as these are
the most similar varieties of common knowledge.
‘Gairdner’ A and ‘Gilbert’ have similar maturity to
‘Lindwall’. ‘Tallon’ has slightly earlier maturity. ‘Tallon’ is
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