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Page 1: Husbandry Guidelines - LG Seeds · the farmer serving the animal feed, export, distilling and latterly the biofuel markets. Current HGCA data (Table 1) clearly illustrates the ability

Husbandry Guidelines

Page 2: Husbandry Guidelines - LG Seeds · the farmer serving the animal feed, export, distilling and latterly the biofuel markets. Current HGCA data (Table 1) clearly illustrates the ability

2

Horatio has been added to the 2012/13 HGCA Recommended List as the

joint highest yielding soft milling wheat in treated trials.

Meeting the demands of a range of

domestic and export market criteria,

Horatio has performed well in all HGCA

regions of the UK producing consistent

yields over many seasons and is well

suited to early September sowing.

Horatio meets the requirements of the

traditional soft feed markets, notably the

export specification, and is

acceptable to UK distillers. It will also be

suitable for the biofuel market, as well as

the domestic animal feed market.

An easy variety to manage, Horatio

provides the grower with proven genetic

disease resistance which, when exploited

in conjunction with modern fungicides,

will ensure the threat from pathogens

can be kept to a minimum.

Limagrain introduced the concept of

husbandry guidelines for new varieties

many years ago and there is now

sufficient information to produce this

booklet for Horatio. The first part

provides some background information

on Horatio, the second section pointers

on how best to manage it. The guide is

not intended as a rigorous blueprint, but

provides sufficient technical support to

enable growers and agronomists to

realise the genetic potential offered by

this new and exciting variety.

Key Points• HGCA Recommended

• Soft milling feed wheat

• Suitable for earlySeptember sowing

• Resistant to orangewheat blossom midge

• Very good diseaseresistance

Key Markets• Distilling

• Biofuel

• Animal feed

• uks export brand

Introduction

Page 3: Husbandry Guidelines - LG Seeds · the farmer serving the animal feed, export, distilling and latterly the biofuel markets. Current HGCA data (Table 1) clearly illustrates the ability

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THE VARIETYPosition in the Market 4Pedigree and Selection 5Yield Potential 6Resistance to Diseases and Pests 9Agronomic Characteristics 10

MANAGEMENTSowing Date, Seed Rate and Seed Treatments 11Plant Growth Regulator (PGR) Use 13Herbicide Tolerance 13Crop Nutrition 14Fungicide Programmes 15Response to Fungicides 17Husbandry Summary 19

Contents

Page 4: Husbandry Guidelines - LG Seeds · the farmer serving the animal feed, export, distilling and latterly the biofuel markets. Current HGCA data (Table 1) clearly illustrates the ability

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For many years the UK has demonstrated

its capability to produce high yields of soft

milling wheats. Varieties in this sector

offer a wide range of market options for

the farmer serving the animal feed, export,

distilling and latterly the biofuel markets.

Current HGCA data (Table 1) clearly

illustrates the ability of Horatio to service

these markets. For the soft feed sector,

Horatio produces grain with both a good

specific weight and Hagberg falling

number, an area which has been an

inherent problem with many soft feed

varieties in the past.

Horatio has been placed in the (soft

wheat) category and will meet the

specifications for this market (Table 1).

Horatio - Position In The Market

Table 1: Market Specifications and Grain Quality

standard Horatio Viscount Beluga

nabim Group 3 or 4 4 4 4

Endosperm texture Soft Soft Soft Soft

Protein content (%) 10.5 – 11.5 10.9 10.7 10.7

Hagberg falling number - 238 172 159

Specific weight (kg/hl) - 76.4 76.1 75.7

Chopin alveograph W ≤ 120 (78) 90 95

Chopin alveograph P/L ≤ 0.55 (0.3) 0.3 0.4

( ) = limited data.

There is no UKS standard for Hagberg falling number or specific weight but 225 secs and 72.0kg/hl are commonly used as the minimum required.

THE VARIET Y

Page 5: Husbandry Guidelines - LG Seeds · the farmer serving the animal feed, export, distilling and latterly the biofuel markets. Current HGCA data (Table 1) clearly illustrates the ability

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Pedigree: Alchemy x Oakley

The objective of this cross was to combine

the excellent soft milling and disease

resistance characteristics of Alchemy with

the high yield potential and orange wheat

blossom midge resistance of Oakley and

strengthen the disease profile of each. A

high level of resistance to Septoria tritici

and yellow rust was a priority because of

the increasing difficulties of controlling

these diseases in the field.

Doubled haploid technology was used to

produce Horatio, enabling a true breeding

line to be developed rapidly with the best

disease and grain quality characters fixed

early on in the selection process.

Horatio - Pedigree And Selection

Page 6: Husbandry Guidelines - LG Seeds · the farmer serving the animal feed, export, distilling and latterly the biofuel markets. Current HGCA data (Table 1) clearly illustrates the ability

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Horatio demonstrates the highest yield

potential within its market sector. This is

seen in its performance in HGCA

Recommended List (RL) trials (Table 2)

where Horatio is 2% higher yielding than

Viscount both with and without fungicide.

Compared with the hard feed JB Diego,

Horatio is 1% better treated and untreated.

Horatio has also been a consistently high

yielding variety in three years of National

and Recommended List trials, a sign of a

stable variety.

Horatio has produced very high

yields throughout the UK in all HGCA

regions and performed well when

sown as a first or second wheat,

giving great flexibility in its position

on farm (Table 3).

Horatio - Yield Potential

Table 2: Yield Potential

Yield (% treated control)

Horatio Viscount JB Diego Grafton

UK (treated) 105 103 104 101

UK (untreated) 92 90 91 90

UK 2009 105 103 102 101

UK 2010 104 103 104 101

UK 2011 105 105 105 99

Table 3: Regional and Rotational Performance

Yield (% treated control)

Horatio Viscount JB Diego Grafton

Regional performance

HGCA East 105 104 104 101

HGCA West 104 102 106 102

HGCA North (104) 104 101 102

Rotational performance

First cereal 105 103 104 101

Second and more cereal 103 104 104 103

( ) = limited data

Page 7: Husbandry Guidelines - LG Seeds · the farmer serving the animal feed, export, distilling and latterly the biofuel markets. Current HGCA data (Table 1) clearly illustrates the ability

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When drilled in early-September sown

trials conducted by the HGCA, Horatio

maintained its high level of performance,

being the second highest yielding of all the

varieties tested and yielding 9% above

Grafton and 11% above Claire (Chart 1).

Chart 1: HGCA Early Sown Trials 2009 – 2011

Horatio Viscount Grafton Alchemy Claire

Yiel

d (%

trea

ted

cont

rols

)

Source: Agrii 2011, sown 4th September

Further independent evaluation using farm

levels of inputs was undertaken by Agrii

and supports the HGCA data showing

Horatio’s ability to perform well in an early

sown situation (Chart 2).

In this trial, Horatio was the highest

yielding of the varieties tested, 1.2 t/Ha

above Claire, a variety which is a proven

and popular choice for early sowing.

Chart 2: Agrii Early Sown Trial 2011

Horatio Viscount JB Diego Grafton Claire

Yiel

d (t

/ha)

111108

102 103100

8.89

7.948.32

7.537.69

Page 8: Husbandry Guidelines - LG Seeds · the farmer serving the animal feed, export, distilling and latterly the biofuel markets. Current HGCA data (Table 1) clearly illustrates the ability

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Chart 3: Yield Potential in Limagrain Farmer Trials

Horatio Viscount JB Diego Grafton

Yiel

d (%

trea

ted

cont

rols

)

Yiel

d (%

unt

reat

ed c

ontr

ols)

Treated Untreated

Horatio Viscount JB Diego Grafton

Source: Limagrain UK trials 2011

HGCA RL trials are conducted with high

levels of fungicide and PGR input,

designed to keep disease levels to a

minimum and measure the genetic

potential of varieties. The programmes

used in these trials cost in the region of

£200/ha, considerably more than would

be acceptable to farmers who would

typically spend less than half this figure.

Each year, Limagrain UK conducts a

number of ‘farmer trials’ where replicated

plots of varieties are placed in commercial

crops and managed by the grower using

farm levels of inputs. These trials are

designed to supplement the HGCA system

and determine how varieties perform when

given more realistic levels of management.

In 2011 there were 11 farmer trials located

at a range of locations around the UK from

Cornwall to Perthshire. The results (Chart

3) support those from the RL system. They

show Horatio’s high yield potential when

managed as a commercial crop would be,

with a 7% yield advantage over Viscount

and 4% over the hard feed JB Diego when

fungicide treated and 5 to 8% above these

two varieties untreated.

108 110

105102101

104

97 99

Page 9: Husbandry Guidelines - LG Seeds · the farmer serving the animal feed, export, distilling and latterly the biofuel markets. Current HGCA data (Table 1) clearly illustrates the ability

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( ) = limited data; R = resistant.

A high level of durable genetic disease

resistance is a key target in the Limagrain

breeding programme.

The table below gives the HGCA disease

resistance ratings for Horatio, Viscount, JB

Diego and Grafton.

Septoria tritici is the most widespread and

damaging disease of winter wheat and

resistance to this disease is the yardstick

by which most varieties are judged.

Horatio has very good resistance to

Septoria which is based on a number of

genes and not dependent on a single

major gene. This genetic resistance should

be used in conjunction with a targeted

fungicide programme to give the highest

level of disease control in the field.

Mildew resistance for Horatio is good and

this disease should not require routine

treatment. Mildew is frequently

associated with early sown, thick crops

and high humidity within the canopy,

which can be avoided by careful

management i.e. using lower seed rates

and careful nitrogen timing.

New races of yellow and brown rust in 2012

have affected numerous varieties, in many

cases we are likely to see ratings being

altered. At the time of writing it is unclear

where the ratings for Horatio will lie, but

they are expected to be lower than

published in the 2012 HGCA

Recommended List.

It is important that fungicide programmes

are targeted effectively to manage any

increased risk. In the case of brown rust, a

programme targeted at Septoria tritici is

likely to give adequate control.

Brown rust tends to be localised, with

certain areas of the country being affected

Horatio - Resistance to Diseases and Pests

Table 4: Resistance to Diseases and Pests

Horatio Viscount JB Diego Grafton

Mildew 7 7 6 7

Yellow rust 8 4 8 8

Brown rust 6 8 4 3

Septoria nodorum (6) 7 6 6

Septoria tritici 6 5 5 5

Eyespot 5 6 4 8

Fusarium ear blight 6 6 6 5

Orange wheat blossom midge R R - -

Page 10: Husbandry Guidelines - LG Seeds · the farmer serving the animal feed, export, distilling and latterly the biofuel markets. Current HGCA data (Table 1) clearly illustrates the ability

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more frequently than others. Historically,

Brown rust was a late season disease

developing after ear emergence. More

recently, the disease has appeared earlier

in some seasons where the autumn and

winter have been mild. This will need to be

carefully monitored, especially in earlier

sown crops.

The development of eyespot will need to

be monitored on Horatio, with thicker,

early sown crops on the heavier soil types

being most at risk. Lesions penetrating the

stem base are most likely to affect yield

and increase the lodging risk. As a number

of diseases are often present at the stem

base, correct identification is important.

Horatio has good resistance to Fusarium

ear blight and its current rating gives a

score of zero in the HGCA Mycotoxin risk

assessment.

Horatio also has genetic resistance to

orange wheat blossom midge and routine

insecticide sprays will not be required on

the variety.

Horatio has moderately tall straw and

responds well to PGR use, having a similar

rating to JB Diego when treated. It is

recommended that an effective programme

(see page 13) is planned for Horatio in most

situations to ensure its very high yield

potential is realised.

Horatio has a similar ripening date to

Viscount and is earlier to ripen than the

majority of other feed varieties (Table 5).

Horatio - Agronomic Characteristics

Table 5: Agronomic Characters

Horatio Viscount JB Diego Grafton

Straw height (cm) untreated 89 83 89 77

Resistance to lodging (with PGR) 8 7 8 9

Ripening (days ± Solstice, + = late) +1 +1 0 -2

Horatio has genetic resistance to orange wheat blossom midge

Page 11: Husbandry Guidelines - LG Seeds · the farmer serving the animal feed, export, distilling and latterly the biofuel markets. Current HGCA data (Table 1) clearly illustrates the ability

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Horatio has a prostrate winter growth habit

and a moderate to high tillering capacity.

In the early spring Horatio’s growth habit is

similar to Claire. Table 6 shows the growth

habit ratings for a number of soft and hard

feed varieties along with Claire and

Einstein for reference. Horatio’s score of 7

is akin to Claire and it is more prostrate

than Viscount and JB Diego.

In the spring, Horatio moves through the

ear primordial (growing point)

development and stem internode growth

stages slightly faster than Alchemy. Chart 4

compares the ear development stages of

Horatio with Viscount and Alchemy along

with Claire (a slow developer) and Einstein

(a fast developer) for reference. It shows

that Horatio is rated 'medium' in its

development speed, faster than Alchemy

but slower than Viscount and Einstein.

Horatio - Sowing Date, Seed Rate and Seed Treatments

Table 6: Growth Habit

Growth habit score (1 – 9 where 9 = prostrate)

Horatio 7

Viscount 5

JB Diego 6

Grafton 3

Claire 7

Einstein 4

Source: Limagrain UK trials 2011

Source: Limagrain UK trials 2010/2011

Chart 4: Primordia Ear Development in the spring

Horatio

Grafton

JB Diego

Viscount

Claire

Einstein

5.17 5.18 5.19 5.20 5.21 5.22 5.23 5.24 5.25 5.26

Apical growth stage (5.26 = terminal spikelet)

MANAGEMENT

Page 12: Husbandry Guidelines - LG Seeds · the farmer serving the animal feed, export, distilling and latterly the biofuel markets. Current HGCA data (Table 1) clearly illustrates the ability

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The combination of a prostrate growth

habit, medium speed of development with

good standing power and disease

resistance suggests that Horatio may be

sown from early September onwards.

Horatio has produced very high yields in

trials (see pages 6 & 7) when sown at this

time. It will continue to perform well when

sown throughout the autumn and the

latest safe sowing date for Horatio is the

end of February.

SOWING DATE

Seed rates for Horatio should reflect the drilling date and seedbed conditions.

These seed rates (Table 7) are based on

sowing into seedbeds where

establishment is likely to be good. Under

less favourable conditions they should be

increased by 40–50 seeds/m2 to allow for

losses during establishment.

SEED RATE

All Horatio seed should receive a ‘single

purpose’ seed treatment as routine in

order to control the commonly occurring

seed borne diseases. For earlier sowings,

broad spectrum dressings offering

improvements in standing power and early

season foliar disease protection should be

considered in high risk situations. Where

take-all risk is high, a disease usually

associated with second and continuous

wheat situations, specific seed treatments

such as Latitude or Jockey may be of

benefit and worth considering.

Insecticide seed dressings such as Deter

can provide good early season protection

against aphids carrying barley yellow

dwarf virus and help to reduce grain

hollowing by slugs. Where crops are drilled

in the early part of September, an

additional aphicide spray may also be

required later in the autumn to maintain

protection.

SEED TREATMENTS

Table 7: Seed Rates

Seed rates (seeds/m2) for Horatio

Time of Early Mid Late Early Mid Late sowing September September September October October October

Seeds/m2 120 - 160 160 - 200 220-275 220-275 265-325 265-325

Page 13: Husbandry Guidelines - LG Seeds · the farmer serving the animal feed, export, distilling and latterly the biofuel markets. Current HGCA data (Table 1) clearly illustrates the ability

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Horatio has medium length straw and

responds well to PGR use, having a rating

of ‘8’ when treated, the same as JB Diego.

Where expected yields are likely to exceed

8t/ha, a routine application of a

chlormequat (CCU) based product will

provide a very cost effective insurance

against possible lodging and associated

loss of yield and quality.

Limagrain recommend a split PGR

application with 2/3 at Zadoks GS30 (or

more precisely 'glume primordial stage')

and the balance, GS31 ('first node

detectable') as an ideal input for Horatio. If

the weather does not permit a split

application, full rate CCC should be applied

at GS31. The addition of Moddus or

Canopy should be considered, especially if

the crop has a very high yield potential to

further reduce crop height and lodging

risk. Earlier sown crops are more likely to

benefit from the additional PGRs.

Where soil type, fertility, seasonal growth

and previous experience suggest a high

lodging risk then a late season ethephon

based product (such as Terpal) could be

used.

A managed approach should be adopted

with Horatio to reduce lodging by using a

combination of the appropriate seed rate,

controlling stem base diseases and correct

nitrogen timing in conjunction with early

spring PGR applications.

Horatio - Plant Growth Regulator Use

Preliminary testing suggests that Horatio is

likely to be tolerant to chlorotoluron (CTU)

based products but further evaluation is

required before a full recommendation can

be made. Growers are advised to contact

their agrochemical supplier before treating

Horatio crops to check the latest situation.

Recent research work has shown that

wheat varieties can vary in their ability to

suppress blackgrass and that variety

choice should be part of a blackgrass

control strategy. The more competitive

varieties have good ground cover in the

autumn, a prostrate growth habit and grow

quickly in the spring to help suppress

blackgrass. Horatio has these

characteristics and its competitiveness

against blackgrass was measured in a trial

in 2011 (Table 8, overleaf ). There were

fewer blackgrass plants surviving a

comprehensive herbicide treatment in the

Horatio plots than in the Oakley and JB

Diego plots.

Horatio - Herbicide Tolerance

Page 14: Husbandry Guidelines - LG Seeds · the farmer serving the animal feed, export, distilling and latterly the biofuel markets. Current HGCA data (Table 1) clearly illustrates the ability

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Nitrogen recommendations for winter

wheat have recently been updated to

reflect recent trial results, NVZ regulations

and the relative prices of grain and

fertiliser. In particular, allowance can now

be made for the high yield potential of

varieties like Horatio when calculating the

total amount of nitrogen fertiliser to apply

and comply with ‘N max’ limits.

With increasing scrutiny on nitrogen use it

is imperative growers can justify the

amount applied and should refer to Defra

RB 209, HGCA Guidelines or SAC Technical

Note 625 (as appropriate) and use a FACTS

qualified adviser when calculating the

rates to be applied to Horatio.

A three-way split nitrogen application will

be more reliable than a two-split approach.

The ideal target applications are based on

the actual growth stage of the crop and

coincide with Zadoks GS30 (glume

primordial stage) GS31/32 (terminal

spikelet) and GS 37 (flag leaf emergence).

The first application of nitrogen should

consist of no more than 50kgN/ha in most

cases and should be used with care on

Horatio. This dose can increase the threat

from disease and lodging; it could be

reduced (or even omitted) if the crop was

in a fertile situation where too much early

fertiliser would be detrimental. Well

tillered (> 1000/m2) crops do not need

nitrogen fertiliser at this stage.

However, in second or continuous wheat

crops, where a possible threat from take-

all exists, an increased first nitrogen

application would be desirable to reduce

the impact of any infection that might

occur.

The second application should be targeted

just prior to Zadoks GS32 or to be more

accurate, at the terminal spikelet stage.

Horatio - Crop Nutrition

Following the dry spring in 2011, theblackgrass population was considerablylower than would be expected. The trialdoes indicate the differences between

varieties where grassweeds occur and howcorrect variety choice can play a role in anoverall control strategy.

Table 8: Blackgrass Competition

Horatio Oakley JB Diego Stigg

Blackgrass (ears/m2) 34 43 43 28

Source: Agrii 2011, assessed May 2011. Plots received an autumn and spring herbicide.

Page 15: Husbandry Guidelines - LG Seeds · the farmer serving the animal feed, export, distilling and latterly the biofuel markets. Current HGCA data (Table 1) clearly illustrates the ability

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Careful monitoring of the crop stage,

especially in earlier drilled crops is

essential for the correct timing of inputs.

This should be the main nitrogen

application, in the region of 100kgN/ha.

The third application close to flag leaf

emergence (Zadoks GS37) delivers the

remainder of the nitrogen required for

maximum yield.

In simple terms the breakdown of the three

split applications is 25% / 50% / 25%.

Sulphur

It is now well accepted that sulphur

deficiency is present in many soils in the

country and therefore sulphur applications

are desirable on most crops. Crops at

highest risk from sulphur deficiency are

those grown on the lighter soils (chalks or

sands), particularly where organic

manures are not used. Deficiency is

becoming more widespread and it is likely

most wheat crops will benefit from a

sulphur application.

The best approach is to apply 15 - 20

kgS/ha (equivalent to 40 - 50 kgSO2/ha) in

the early spring but before stem extension.

This may be combined with the first

nitrogen application or split between the

first and second applications. Later

applications of sulphur may not be as

effective in dealing with sulphur deficiency

in wheat crops.

Trace elements such as manganese,

copper, boron and iron are important

during periods of rapid growth, especially

around flag leaf emergence. Foliar

applications of products such as Multimin

will ensure that any transient deficiencies

are met and will aid flowering

synchronisation. The use of magnesium at

T3 will help with grain fill and improve

specific weight.

At the time of writing grain prices arehigher, but more volatile, than have beenseen for many years. With the prospect ofhigh gross margins from wheat crops,using a sensible fungicide programme onHoratio will deliver an excellent return onthe investment. In HGCA RL trials over afive year period, including some highdisease pressure years, Horatio has shownan average response of 13% - equivalent to

1.3t/ha – from a comprehensiveprogramme.

Fungicide programmes for Horatio shouldbe targeted and take in to account itsgenetic resistance to the individualdisease outlined earlier. The aim shouldbe to keep the crop clean to the groundbut the flag leaf and top two leaves areparticularly important with respect to grainfilling. It is essential that Septoria tritici is

Horatio - Fungicide Programmes

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controlled very effectively and cropsreceive adequate protection againstmildew and eyespot.

Horatio is likely to benefit from fungicidesapplied at the following timings:

TO (Pre GS 30)This fungicide is frequently used as anearly pre-season ‘clean up’ and as aninsurance to help with diseasemanagement later on, particularly asapplication with the first part of asequential PGR programme is possible(see page 13).

Horatio is unlikely to require a routine TOtreatment but an application ofchlorothalonil will help to delay Septoriadevelopment. Where disease levels in thecrop at the end of the winter are high theaddition of a low dose of a triazole couldalso be considered.

T1 (GS31-32)The main disease to be targeted at thistime will be Septoria tritici and thefungicide should be applied to keep thefinal leaf three disease free. Sprays shouldbe based on a triazole (e.g. Opus orProline) using at least a half label ratemixed with chlorothalonil. In Limagraintrials, Tracker has produced good resultswhen applied at this stage. Strobilurinchemistry could be included if there is athreat from brown rust.

TO and T1If either mildew or eyespot is present atthe TO or T1 timings these will need to becatered for in the fungicide mix. A numberof very effective mildewicides are availablei.e. Talius. Flexity has activity on mildew

and eyespot, and Proline and Tracker areeffective against eyespot and Septoria.

T2 (GS37 – 39)Aimed at keeping the top two leaves cleanand maintaining Septoria control, triazolessuch as Opus or Proline with chlorothalonilhave proved to be very reliable at thistiming. On Horatio, which has goodresistance to Septoria, there is scope touse lower rates than on other moresusceptible varieties but it is importantthat sufficient fungicide is applied at thistime to maintain green leaf area of theupper leaves.

In crops with a high yield potential orwhere Septoria pressure is high, the newSDHI fungicides (Adexar, Aviator XPro andSeguris) could be used where theirpersistence and effects on green leafretention are most likely to be of benefit.

Strobilurins are frequently included in thefungicide mix at the T2 timing. On Horatiotheir contribution to disease control will befor brown rust and their physiologicaleffects may be useful.

T3 (GS60 +)An ear emergence fungicide will bevaluable on Horatio to maintain earlierdisease control, provide protection againstspecific ear diseases and help to improvespecific weight.

A number of products are available for eardisease control with those based onProline ± a strobilurin performing well atthis timing. A quarter to a half label doseis appropriate for additional diseasecontrol. A minimum of half dose isnecessary for Fusarium control.

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Horatio - Response to Fungicides

Table 9: Limagrain Fungicide Programme trials 2011

TO GS30/31 T1 GS32 T2 GS39/45 T3 GS60/65 Approx cost

Product Rate (l/ha) Product Rate (l/ha) Product Rate (l/ha) Product Rate (l/ha) £/ha

HGCA Talius 0.15 Tracker 1.5 Aviator 1 Proline 0.72 178Ignite 0.625 Bravo 1 Talius 0.15 Comet 0.75

Flexity 0.5

Triazole Opus 0.4 Tracker 0.75 Opus 0.75 Caramba 0.5 76Talius 0.15 Bravo 1 Bravo 1

Bayer Opus 0.4 Proline 0.6 Firefly 1.5 Firefly 1 103Talius 0.15 Bravo 1

BASF Opus 0.4 Tracker 1 Tracker 1 Brutus 1 105Talius 0.15 Bravo 1 Ignite 0.375

Syngenta Opus 0.4 Cherokee 1.5 Amistar Opti 1.25 Amistar Opti 0.75 77Talius 0.15 Ignite 0.75 Folicur 0.75

Bayer SDHI Opus 0.4 Proline 0.6 Aviator 1 Firefly 1 107Talius 0.15 Bravo 1

BASF SDHI Opus 0.4 Adexar 1 Adexar 1.6 Brutus 1 146Talius 0.15 Bravo 1 Comet 200 0.4

Syngenta Opus 0.4 Amistar Opti 1.25 Seguris 1 Amistar Opti 0.75 116SDHI Talius 0.15 Ignite 0.75 Folicur 0.75

In addition to the Farmer Trials mentioned

earlier, Limagrain conduct their own

Agronomy Trials to investigate the

response of varieties to different fungicide

regimes. In 2011, Horatio was included in

these trials and treated with a

comprehensive range of fungicide

programmes. Although the trial was a first

cereal drilled in good time, disease

pressure was very low and the site

suffered from a lack of rainfall during much

of the spring growing season.

The treatments were:

• The HGCA programme, designed to keep

disease levels to a minimum and

measure the genetic potential of a

variety

• A relatively inexpensive triazole based

programme

• Programmes from Bayer, BASF and

Syngenta, based largely on triazole

chemistry with the inclusion of

strobilurins at T2 and T3 (Bayer and

Syngenta) or ‘stacked’ triazoles (BASF)

• As above but with the addition of the

new SDHI chemistry

Full details of the treatments are given in

Table 9, along with an indication of the

cost/ha.

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The HGCA programme produced the

highest yield at 10.0t/ha with the triazole

programme only 0.17t/ha lower. The

triazole/strobilurin mixtures from the three

manufacturers had similar yields and were

all about 0.7t/ha behind the HGCA

treatment. The SDHI treatments were also

lower than the HGCA – by about 0.6t/ha -

and gave very similar yields to the non-

SDHI treatments from their respective

manufacturers.

The picture changes when a margin over

fungicide cost (yield x £/tonne {£160} –

fungicide cost) is calculated. The high

yielding and low cost triazole programme

had the best margin of £1497/ha. The

second best margin (£1422/ha) came from

the intensive HGCA programme where the

additional cost was partly offset by the

higher yield. The differences between the

respective manufacturers programmes

with and without SDHIs were relatively

small, with only £45/ha between the

highest and the lowest, suggesting there

was no financial benefit to adding either a

strobilurin or SDHI treatment to a good

triazole programme to Horatio in this trial.

Although the results were influenced by

the season and low disease pressure, they

do show the importance of matching

fungicide use to the genetic resistance

inherent in a variety such as Horatio and

how this is reflected in the final margin.

The yields and margin over fungicides for the trial are presented in Chart 5.

Chart 5: Yield and Margins for Fungicide Trials 2011

HGCA Triazole Bayer BASF Syngenta BayerSDHI

BASF SDHI

SyngentaSDHI

Yiel

d (t

/ha)

Mar

gin

over

fung

icid

e (£

/ha)

10.5

10.0

9.5

9.0

8.5

8.0

1500

1400

1300

1200

1100

1000

1450

1350

1250

1150

1050

Source: Limagrain 2011, Suffolk. Wheat price of £160/t used in the margin calculations.

Yield (t/ha) Margin over fungicide (£/ha)

Page 19: Husbandry Guidelines - LG Seeds · the farmer serving the animal feed, export, distilling and latterly the biofuel markets. Current HGCA data (Table 1) clearly illustrates the ability

19

Disclaimer: The information in this document is for guidance only and does not constitute a recommendation.

Limagrain cannot accept any liability in connection with the use of this information.

Notes:Full data from the HGCA Recommended Lists database is available at www.hgca.com.

On the 1-9 scales, high figures indicate that a variety shows the character to a high degree.

1. ‘HGCA Recommended Lists’ is a registered trademark of the Home-Grown Cereals Authority

2. Adexar, Canopy, Flexity, Opus, Terpal, and Tracker are registered trademarks of BASF ( www.agricentre.co.uk)

3. Aviator X-Pro, Deter, Jockey and Proline are registered trademarks of BayerCropScience (www.bayercropscience.co.uk)

4. Moddus and Seguris are registered trademarks of Syngenta (www.syngenta-crop.co.uk)

5. Latitude is a registered trademark of Monsanto (www.monsanto.co.uk)

6. Talius is a registered trademark of DuPont (www.dupont.com).

Always read the label. Use pesticides safely

• Drill between early-September and the end of October, adjusting seed rate to

sowing date and soil conditions

• Apply nitrogen in three doses, split between three key growth stages

• Use a three or four spray fungicide programme targeted at Septoria and catering

for mildew, brown rust and eyespot as necessary

• Assess lodging risk and use sequential spring PGRs in conjunction with seed rate,

nitrogen timing and stem base disease control

Horatio - Husbandry Summary

Page 20: Husbandry Guidelines - LG Seeds · the farmer serving the animal feed, export, distilling and latterly the biofuel markets. Current HGCA data (Table 1) clearly illustrates the ability

Limagrain UK, Rothwell, Market Rasen, Lincolnshire, LN7 6DT Tel: 01472 371471 Fax: 01472 371386 www.limagrain.co.uk/horatioEmail: [email protected]

Whilst every care is taken to produce reliable and accurate guidelines, no liability can be accepted for any use made of this information.

06/2012