What can PGR’s do for me?
Brian Staines – Feb 2013
Why do crops lodge?
Summary
All lodging caused by leverage on roots or stem
Root lodging
Stem lodging
Key Factors
• Root anchorage
• Soil type
• Leverage force
Key Factors
• Stem strength
• Plant height
• Leverage force
What can I do to reduce lodging?
• Reduce nutritional input or avoid high nutrition paddock
• Reduce water input (irrigation)
• Reduce seeding rate
• Select shorter varieties
•
………
Moddus Evo
Moddus Evo is a new generation plant growth regulator (PGR)
being developed by Syngenta for use in Wheat, Barley and Oats.
Moddus Evo delivers:
Genetic production potential
•
Reduced lodging
–
–
–
–
–
Faster harvest speeds
Minimizes lost grain
Improved grain quality
Reduced stress at harvest
Improved harvest index
How does it reduce lodging?
Barley – Bathurst NSW 2010
• Reduces internodal length
• Increases stem wall thickness
• Increases crown root development
Check
MODDUS EVO Stem wall
area 124% of check
MODDUS EVO
400 mL/ha
MODDUS EVO: Final Crop Height
Crop Height - % of Untreated
(Mean of 6 trials)
120
100
80
60
40
20
0
Check
ModdusEVO
100 100mL/ha
mL/ha +
MODDUS
Cycocel
1L/ha
+ ERREX 1L/ha
Moddus 200
+ MODDUS
Moddus 400
+
MODDUS
EVOmL/ha
200mL/ha
EVO mL/ha
400mL/ha
Cycocel
1L/ha
Cycocel
1L/ha
+ ERREX 1L/ha
+ ERREX 1L/ha
Check
Moddus: Crop Enhancement and Lodging Management
Barley – Bathurst NSW 2010
Barley – Wagga Wagga NSW 2010
Check
MODDUS Stem wall
area 124% of check
Applied
GS31
Applied
GS29
MODDUS
400 mL/ha
MODDUS EVO: plant growth regulator for cereals
•
Anti-Lodging registration
– GS31 & GS37 application window
•
Crops
– Wheat, barley and oats
•
Rates
– Wheat
• 300 - 400mL/ha alone
• 200mL/ha + 1-1.3L/ha ERREX
– Barley
• 300 - 400mL/ha alone
• Up to 2 applications in barley
– Oats
• 300 - 400mL/ha alone
Wheat : Stem Strength
Moddus EVO at different timings
1.2
0.3
1
0.25
0.8
0.2
0.6
0.15
0.4
0.1
0.2
0.05
0
Strength of
stem base(Nm)
0
Untreated
GS 26
GS 29-30
GS 32
Source : Novartis, 1997
PP12/431
™
Barley % Lodging
4 trials 2010
PW032E3-2010AU, SYN09815#1, SYN09832#3
SYN09832#5
60
% of Untreated
50
40
30
20
10
0
UTC
Moddus 400ml/ha
Moddus 400 FB
400ml/ha
Moddus 600ml/ha
Moddus 600 FB
200ml/ha
Untreated
MODDUS 400 mL/ha @ GS31
Barley Yields
4 trials 2009 UTC 4.05t/ha
120
PW032E3-2010AU, SYN09815#1, SYN09832#3
SYN09832#5
100
103
106
105
% of Untreated
100
80
60
40
20
0
UTC
Moddus 400ml/ha
Moddus 400ml/ha FB 400ml/ha Moddus 400ml/ha FB Etherl
PP12/431
™
Wheat Lodging %
3 trials 2010
PW032A3-2010AU
45
40
% of Untreated
35
30
25
20
15
10
5
0
UTC
Moddus 200ml/ha
Moddus 400ml/ha
Moddus 200ml/ha + Errex 1.3l/ha
Wheat Yield
3 trials 2010 UTC 4.04t/ha
PW032A3-2010AU
120
100
101.2
UTC
Moddus 200ml/ha
107.6
109.9
Moddus 400ml/ha
Moddus 200ml/ha + Errex 1.3l/ha
% of Untreated
100
80
60
40
20
0
PP12/431
™
Oats Lodging %
3 trials, 2010
PW032A3-2009AU, PW032E3-2010AU,
60
% of Untreated
50
40
30
20
10
0
UTC
Moddus 200ml/ha
Moddus 400ml/ha
Oats Yield
3 trials, 2009-10, UTC 3.9t/ha
PW032A3-2009AU, PW032E3-2010AU
140
131
125
120
100
% of Untreated
100
80
60
40
20
0
UTC
Moddus 200ml/ha
Moddus 400ml/ha
MODDUS EVO response
There are variations in how different species respond
80
•
For cereals the response is greatest in:
1. Oats, followed by
2. Barley, followed by
3. Wheat
% Inhibition (Height, 30 DAT)
•
Bermuda
grass
60
Rye
40
Rape
20
Perennial
ryegrass
Sunflower
0
0
125
•
Forage crops have a greater response than grain crops
•
Barley has the highest rate of bounce back
•
Varieties within crops also respond differently
250
MODDUS (g ai/ha)
500
750
MODDUS EVO: what else can it
influence…
•
Crop enhancement effects
– Increase in nutrient extraction and
utilisation
– Increases in water use efficiency
– Influence on water soluble
carbohydrates
– Brackeling reduction
MODDUS EVO: Key Messages
•
Reduced lodging and increased yield
•
Application timing CRITICAL
•
Should not be implied to stressed crops
•
Many other “side effects” yet to be proven
- Improve Grain Quality & Yield
- Improve root development
- Improve water use efficiency
- Reduction of Barley head loss
Questions?
Brian Staines