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At the root of all the best... RGT Gravity Agronomy summary
Transcript of RGT Gravity - ragtseeds.co.ukragtseeds.co.uk/sites/default/files/2018-03/RGT Gravity...
At the root of all the best...
RGT Gravity
Agronomy summary
Drilling Window
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RGT Gravity has a semi- prostrate growth habit, medium thin leaves and a medium tillering capacity.
-6 -4 -2 0 2 4 6 8
Grafton
Graham
RGT Gravity
Santiago
Revelation
Speed of Dev to GS31 ( days+/- average )
Early Nov Early Oct Early sept
The ideal drilling window for RGT Gravity is late September
to the end of JanuarySource: AHDB RL 2018/19
Drilling Window
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Source: AHDB RL 2018/19
96
98
100
102
104
106
108
RGTGravity
Gleam Shabras Graham Elation Sundance
Yie
ld %
Contr
ols
Main drilling window
Late Drilled
Main Window Oct 6th – mid-November Late Drilled: Mid November onwards
Regional Yield
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96
98
100
102
104
106
108
110
RGT Gravity Gleam Shabras Graham Elation Sundance
Yie
ld %
Contr
ols
East
West
North
Source: AHDB RL 2018/19
Soil Type
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Source: AHDB RL 2018/19
99
100
101
102
103
104
105
106
107
RGTGravity
Gleam Shabras Graham Elation Sundance
Yie
ld %
Contr
ols
Heavy
Light
Rotational Position
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Source: AHDB RL 2018/19
96
98
100
102
104
106
108
RGTGravity
Gleam Shabras Graham Elation Sundance
Yie
ld %
Contr
ols
First
Second
Disease Profile
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Mildew YR BR S. Trtitici Eyespot Fusarium OBM
RGT Gravity 4 8 6 5.2 [4] [6] Yes
Gleam 6 7 6 6.2 [5] [6] Yes
Shabras 6 8 4 6.2 5 [5] No
Graham 7 8 6 6.9 4 6 No
Elation 7 9 6 4.7 [4] [6] Yes
Sundance 7 9 6 7.4 3 [6] Yes
Source: AHDB RL 2018/19
Disease Profile
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SantiagoSource: Untreated RL Trial Elsoms, 31.5.17
RGT Gravity
Response to Fungicide
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Source: AHDB RL 2018/19
0 20 40 60 80 100 120
RGT Gravity
Elation
Shabras
Gleam
Graham
Sundance
Untrt Trt
Fungicide inputs
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RGT Gravity is a high input/high output variety that has a high response to fungicides.
Suggested fungicide programme:• T0- CTL ( + Triazole if YR is present )
• T1- SDHI + triazole +CTL
• T1.5 (Optional) – CTL +/- triazole if necessary
• T2 – SDHI + triazole +CTL
Always consult a BASIS qualified agronomistSource: NIABTAG Agronomy Strategy No.4, 2018
Straw Strength
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-1.0
-0.5
0.0
0.5
1.0
1.5
2.0
2.5
3.0
0.0
5.0
10.0
15.0
20.0
25.0
Graham Shabras LGSundance
Elation RGT Gravity Gleam
% R
educt
ion in L
odgin
g
% L
odgin
g
No PGR PGR % Reduction in Lodging
Source: AHDB RL 2018/19
Straw Strength
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RGT Gravity is a medium tall variety that is relatively non-responsive to PGR inputs ( Ratings 7 –PGR and 7 +PGR ).
In normal situations a split chlormequat at GS30 & 31 should be sufficient.
In thick, forward crops include Moddus or Canopy ( GS30-31)
In situations of high risk include Terpal ( GS37-45 ) or Canopy ( GS37-39 )
Source: AHDB RL 2018/19Always consult a BASIS qualified agronomist
Maturity
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-2 -1 0 1 2 3 4
Grafton
Graham
RGT Gravity
Santiago
Revelation
Ripening +/- JB Diego
RGT Gravity flowers early and ripens
1 day later than JB Diego. This long
flowering/grain filling period, plus it’s
large biomass is what gives
RGT Gravity its yield.
In dry springs if tillers are lost RGT
Gravity can compensate by laying down additional
grain sites, which is what gives
The variety its consistent yields
Source: AHDB RL 2018/19
RGT Gravity - Summary
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RGT Gravity is a high input/high output variety suited to drilling from late September to the end of January
Strengths:
Consistent high yields over soil types, regions and rotational
position.
OBM and YR resistance
Watchouts:
Straw length under high fertile situations.
Eyespot and S.tritici in high disease situations.
