53. Volume 13- Number 1 - IP Australia

PLANT VARIETIES JOURNAL 2000 VOL 13 NO. 1
Table 60 Continued
AWNS OR SCURS AT TIP OF EAR
long long long very long
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APICAL RACHIS SEGMENT HAIRINESS OF CONVEX
SURFACE
absent weak very weak weak to
medium
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LOWER GLUME SHOULDER WIDTH
narrow to narrow narrow narrow to
medium
medium
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LOWER GLUME SHOULDER SHAPE
elevated slightly slight slope sloping
sloping to straight
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LOWER GLUME BEAK LENGTH
medium medium short long
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LOWER GLUME BEAK SHAPE
slight straight slight slight
curve curve curve
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LOWER GLUME EXTENT OF EXTERNAL HAIRS
very weak very weak very weak medium
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LOWEST LEMMA BEAK SHAPE
straight straight straight moderate
curve
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Triticum turgidum subsp turgidum
Durum Wheat
‘Arrivato’
Application No: 1999/324 Accepted: 1 Dec 1999.
Applicant: New Zealand Institute for Crop and Food
Research Ltd, Christchurch, New Zealand.
Agent: Heritage Seeds Pty Ltd, Howlong, NSW.
Characteristics (Table 61, Figure 51) Plant: growth habit
intermediate, frequency of plants with recurved flag leaves
medium, maturity medium, length medium (107.7mm).
Flag leaf: length short (225mm), width wide (21.77mm),
ratio of length to width low (10.33), glaucosity of sheath
strong, glaucosity of blade weak. Awn: anthocyanin
colouration absent, colour light brown. Culm: hairiness of
uppermost node medium, glaucosity of neck strong. Ear:
distribution of awns whole length, length excluding awns
medium (86.6mm), total length of head (including awns)
long (234mm), ratio of length of awns to total head length
high (2.71), hairiness of margin of first rachis segment
strong, colour slightly coloured, shape in profile view
tapering, density dense. Lower glume: shape elongated,
shape of shoulder sloping, shoulder width narrow, length of
beak very short, shape of beak slight curve, hairiness of
external surface absent. Straw: pith in cross section thin.
Grain: shape ovoid, length of brush hair in dorsal view
medium.
Origin and Breeding Controlled pollination: seed parent
‘Tetraprelude’ x pollen parent ‘Waitohi’ in a planned
breeding program in 1987 in New Zealand. The seed parent
is characterised by very short plant height and the pollen
parent is characterised by white awn colour. F 1 was sown
out in the field in 1988. Pedigree selection was done within
F 2 -F 3 generations in 1989 and 1990. In 1991, single plant
selection was continued within the pedigree generation and
selection number 23 was selected to become the breeding
line 4210.23. In 1992 and 1993 it was sown as an
observation plot. It first entered NZ trials in 1994 as an F 7 ,
trial code 94SHA#4. Seed was rogued and pure seed sent to
Australia, which was later named as ‘Arrivato’. Selection
criteria: maturity, yield and awn colour. Propagation: by
seed. Breeder: Dr. Don Wright, New Zealand Institute for
Crop and Food Research Ltd, Lincoln, New Zealand.
Choice of Comparators ‘Tamaroi’ was chosen as a
comparator because of its similarity in maturity. ‘Yallaroi’
and ‘Kronos’ where chosen because these are similar
varieties of common knowledge in terms of height, maturity
and growth habit. ‘Kamillaroi’ and ‘Wallaroi’ were
excluded because these are white awned varieties and the
candidate has light brown awn colour. The parents were not
included on the basis of characteristics as stated above.
Comparative Trial Comparators: ‘Tamaroi’, ‘Kronos’ and
‘Yallaroi’. Location: Howlong, NSW. Conditions: trial
conducted in open plots under normal cultural practices.
Trial design: 5m x 1.2m plots replicated 4 times in a
randomized complete block design. Measurements: taken
from 10 plants within each plot giving a total of 40
measurements for each entry.
Prior Application and Sales Nil.
Description: Peter Crane, Heritage Seeds, Howlong, NSW.
Table 61 Triticum varieties
‘Arrivato’ *‘Tamaroi’ *‘Kronos’ *‘Yallaroi’
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PLANT: GROWTH HABIT
intermediate intermediatesemi erect intermediate
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PLANT: FREQUENCY OF PLANTS WITH RECURVED
FLAG LEAVES
medium high high very high
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TIME OF EAR EMERGENCE (FIRST SPIKELET VISIBLE
ON EARS OF 50% OF PLANTS)
25/9/99 23/9/99 15/8/99 27/9/99
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FLAG LEAF: LENGTH (mm)
mean 227 280 226 291
std deviation 3.32 9.58 6.90 6.74
LSD/sig 16.0 P≤0.01 n/s P≤0.01
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FLAG LEAF: WIDTH (mm)
mean 21.75 19.95 17.80 19.10
std deviation 0.37 0.67 0.34 0.23
LSD/sig 1.12 P≤0.01 P≤0.01 P≤0.01
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FLAG LEAF: RATIO OF FLAG LENGTH TO WIDTH
mean 10.45 14.05 12.69 15.22
std deviation 0.18 0.30 0.31 0.33
LSD/sig 0.53 P≤0.01 P≤0.01 P≤0.01
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