54. Volume 12- Number 4 - IP Australia

PLANT VARIETIES JOURNAL 1999 VOL 12 NO. 4
STIPULE: LENGTH (mm) (at 2nd fertile node)
mean 75.49 67.87 69.97
std deviation 8.86 5.71 5.39
LSD/sig 6.81 P≤0.01 ns
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PEDUNCLE: LENGTH (mm) (at 1st fertile node)
mean 106.43 83.41 77.10
std deviation 21.65 19.18 15.91
LSD/sig 16.15 P≤0.01 P≤0.01
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LEAFLET: WIDEST POINT TO BASE (mm)
(at 2nd fertile node)
mean 23.68 19.73 19.83
std deviation 2.96 3.51 2.72
LSD/sig 3.67 P≤0.01 P≤0.01
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‘Helena’
Application No: 99/228 Accepted: 9 Nov 1999.
Applicant: Chief Executive Officer, Agriculture Western
Australia, Perth, WA and Grains Research and
Development Corporation, Barton, ACT.
Characteristics (Table 19, Figure 42) Plant: a milling
grade, conventional leaf type field pea, height tall, time of
flowering medium to late, maturity medium, anthocyanin
present. Foliage: colour green, intensity medium. Leaf:
conventional, medium to large, dentation very weak,
usually 4 leaflets (average 4.25) per leaf at 1st fertile node,
parchment weak, distance from widest point to base short.
Stipule: well-developed, flecking present, maximum
intensity medium. Flower: wing reddish purple, colour
strong, standard intensity of colour medium, shape of base
slightly arched. Pod: shape straight or weak concave
curvature, usually 5 ovules (mean 4.7) per pod at 2nd fertile
node, shape of distal part blunt. Seed: shape irregular, size
small to medium (100 seed weight 14.1 g) cotyledon colour
yellow, dimple present, testa; colour mainly green
(classified dun), plain, hilum white, shape of starch grains
complex.
Origin and Breeding Controlled pollination: seed parent
‘Dundale’ x pollen parent A130-465-3 (a South Australian
breeding line). The seed parent ‘Dundale’ is earlier in
flowering and has larger seed than ‘Helena’. The pollen
parent A130-465-3 is distinguished from ‘Helena’ by its
brown seed testa colour, ‘Helena’ has mainly green testa
colour. The original cross was made in Western Australia in
1988, single plants selected in the F 2 and F 2 derived F 3 to F 5
lines were evaluated over the next three years. Single plants
were reselected from the promising F 2 derived lines to
produce near homozygous lines. The F 5 derived F 6 -F 8 lines
were tested in breeders trials and five years of performance
testing in the Crop Variety Tests conducted by AGWEST in
various regional locations in Western Australia. Selection
criteria: increased seed yield and seed quality, agronomic
adaptation to the agricultural regions of Western Australia.
Propagation: by seed. Breeder: Dr. T Khan and Dr. R
French, Agriculture Western Australia, South Perth, WA.
Choice of Comparators ‘Dundale’ and ‘Derrimut’ have
coloured flowers, conventional leaf type and dun seed type
similar to ‘Helena’. ‘Dundale’ is also the seed parent of
‘Helena’. Both comparators are most similar varieties of
common knowledge in southern Australia’.
Comparative Trial Comparators: ‘Dundale’ and
‘Derrimut’. Location: Avon Districts Agriculture Centre,
Northam WA. Sown 2/6/99. Conditions: plants were in red
loam pH 5.6 in CaCl 2 in open plots. The plots were treated
with 2.2l/ha Bladex® plus glyphosate 2 days before
seeding, Hoegrass® at 1.5l/ha on 1/7/99 and Sertin® at 250
ml/ha on 19/7/99 where applied for grass control, no
treatment for disease or insect control was required. Agras®
No 1 at 120 kg/ha was drilled with the seed, all seed was
inoculated with group E inoculum the day it was sown. Trial
design: plants sown in randomised complete blocks 10m
long by 1.42m (8 rows) wide by 2 replications.
Measurements: taken from 10 specimens per replicate
selected randomly from approximately 2000 plants.
Prior Applications and Sales Nil.
Description: David Allen Collins, Northam, WA.
Table 19 Pisum varieties
‘Helena’ *‘Derrimut’ *‘Dundale’
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DAYS TO FIRST FLOWER
mean 85.90 73.75 80.15
std deviation 1.82 2.09 3.29
LSD/sig 3.16 P≤0.01 P≤0.01
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HEIGHT AT FIRST FLOWER (mm)
mean 1035.51 734.50 919.50
std deviation 121.83 73.23 59.57
LSD/sig 82.52 P≤0.01 P≤0.01
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WIDTH OF FLOWER BASE (mm)
mean 32.01 27.03 33.31
std deviation 2.01 1.92 2.30
LSD/sig 3.5 P≤0.01 ns
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HEIGHT AT MATURITY (mm)
mean 1475.75 1454.75 1666.50
std deviation 183.52 232.99 195.21
LSD/sig 175.79 ns P≤0.01
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100 SEED WEIGHT (g) (from harvest sample)
mean 14.11 12.31 17.07
std deviation 0.44 1.09 2.46
LSD/sig 2.46 ns P≤0.01
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SEED: TESTA COLOUR
95% green 65% green 45% green
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STIPULE: LENGTH (mm) (at 2nd fertile node)
mean 81.37 65.87 84.19
std deviation 7.59 10.24 10.82
LSD/sig 8.11 P≤0.01 ns
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STIPULE: WIDTH (mm) (at 2nd fertile node)
mean 47.58 36.30 48.59
std deviation 5.11 5.53 7.57
LSD/sig 5.62 P≤0.01 ns
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PEDUNCLE: LENGTH (mm) (at 1st fertile node)
mean 98.19 80.04 116.69
std deviation 19.24 13.41 13.43
LSD/sig 14.56 P≤0.01 P≤0.01
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