Wheat
Sunlamb
Variety fact sheet – Eastern Zone
Variety snapshot
Late maturing spring wheat,
suits early April planting
Suitable for grazing and
grain production
Excellent leaf and stem
rust resistance
Very good yellow leaf
spot resistance
Excellent Septoria tritici
blotch resistance
ASW quality classification for
Northern and South Eastern Zones
Breeders comments
Dual purpose crops offer growers an opportunity to increase the profitability of
their farm by achieving returns from both grazing and grain. By sowing earlier, using
varieties with longer maturities, the growing season is extended, making better use of
soil moisture and helping to fill the ‘feed gap’ that is often experienced in late autumn/
early winter.
Sunlamb (SUN521C) is an awnless, long season spring wheat, differing from most
other dual purpose varieties currently used like Wedgetail, Naparoo and Marombi,
which are winter wheats (cold/vernalisation responsive). Sunlamb’s slow maturity
is achieved through a unique combination of photoperiod sensitivity and cold
responsiveness . When sown in its optimum planting window (early to mid April),
Sunlamb has generally flowered at much the same time as Wedgetail, and a few days
earlier than Naparoo.
The slow maturity of Sunlamb suits dual purpose grazing and grain production
systems throughout central and southern NSW, Victoria and SA. Sunlamb produces
similar total dry matter to Naparoo, whilst achieving similar grain recovery after
grazing to Wedgetail. When grazing any wheat variety, care needs to be taken to
ensure that stock are withdrawn from the crop before GS31 (first node) so that the
developing heads are not damaged.
Seed Availability
PBR and EPR
Commercial quantities of Sunlamb
Sunlamb is protected by Plant
may be available through AGT
Breeders Rights (PBR) and all
Affiliates, or your local retailer.
production (except seed saved for
Please consult the AGT website
planting) is liable to an End Point
for AGT Affiliate contact details.
Royalty (EPR), which funds future
plant breeding. Sunlamb growers
will be subject to a Growers License
Agreement that acknowledges that
an EPR of $2.75/tonne + GST has
to be paid on all production other
than seed saved for planting.
Dual purpose trials: Grain recovery and dry matter production of
Sunlamb versus control varieties in NSW Mixed Cereal Trials 2004-2010
Yield as % of site average
2004 - 2009*
2010 - 2012**
Grain Recovery
Total Dry Matter
Grain Recovery
Total Dry Matter
3.02
3.75
3.79
3.73
Sunlamb
109
95
104
94
Wedgetail
102
101
105
107
Naparoo
106
96
121
101
Northern NSW Average (t/ha)
1.99
4.67
3.63
6.90
Sunlamb
107
100
100
99
Wedgetail
106
101
100
103
Naparoo
113
97
106
97
Southern NSW Average (t/ha)
*MET analysed data, Sunlamb was in 2008 and 2009 trials / **Mean of trials in 2010-2012
Grain only trials: Predicted yields of Sunlamb versus control varieties
Grain yield as % of site average (NVT early sown long term MET analysis 2010-2014)
North East NSW
North West NSW
South East NSW
South West VIC
North East VIC
South East VIC
South West NSW
120
115
110
105
100
95
90
85
80
75
120
115
110
105
100
95
90
85
80
75
Sunlamb
Naparoo
Wedgetail
Disease, agronomic and grain quality ratings for Sunlamb and control varieties
Sunlamb*
Wedgetail
Naparoo
Stem Rust
R
MRMS
RMR
Stripe Rust
MRMS
MS
MR
Leaf Rust
MR#
MS
R, S
Crown Rot
MS
MSS
MSS
P. thornei Tolerance
I
MI*
MT*
P. thornei Resistance
MS
S
SVS
Yellow Leaf Spot
MRMS
MSS
MS
Septoria tritici Blotch
MR
MSS
MR
Maturity
Late
Late
Very Late
Plant Height
Medium
Medium
Medium
Acid Soil Tolerance
MI
TMT
-
Northern Quality Classification
ASW
AH
Feed
South Eastern Quality Classification
ASW
APH
Feed
Southern Quality Classification
Feed
APW
Feed
Screenings Risk
Low - Moderate
Low - Moderate
-
Test Weight
Moderate - High
Moderate - High
Moderate - High
RResistant
MR Moderately Resistant
MS Moderately Susceptible
SSusceptible
VS
Very Susceptible
TTolerant
MT Moderately Tolerant
MI
Moderately Intolerant
IIntolerant
VI
Very Intolerant
Source / NSW Winter crop variety sowing guide 2015, NVT and AGT data.
-
#
*
Insufficient Data
Provisional rating change for
the exotic strain of leaf rust
Preliminary ratings, to be used
with caution
Contact details
James Whiteley, Marketing Manager, Eastern
0419 840 589
Kerrie Gleeson, Marketing Manager, Northern
0427 958 259
Meiqin Lu, Wheat Breeder
0428 856 612
Britt Kalmeier, Wheat Breeder
0408 442 005
End Point Royalty Office
(08) 8313 6810
agtbreeding.com.au
Disclaimer / The information contained in this brochure is based on knowledge and understanding at
the time of writing. Growers should be aware of the need to regularly consult with their advisors on local
conditions and currency of information.