2018 Frost trials and seasonal information

Page last updated: Wednesday, 10 July 2019 - 1:06pm

This page hosts the 2018 frost trial information, handy project resources and the frost severity maps (from August).

What's happening where in WA

Click on the map to view trial information in more detail:

Site management information for Dale

Table 1 Crop and sowing details
Tillage type Minimum tillage
Seed bed Burnt oat stubble
Stubble loading Low (<5%)
Sowing equipment Knife points and press wheels
Row spacing (cm) 25.4
Sowing dates

TOS 1 - 12/04

TOS 2 - 19/04

TOS 3 - 27/04

TOS 4 - 3/05

TOS 5 - 10/05

TOS 6 - 18/5

TOS 7 - 28/05

TOS 8 - 6/06

Irrigation

Water two weeks before sowing for weed germination

Water the day before sowing for establishment

Fertiliser applied Pre-emergent 100kg/ha Gusto Gold
50kg/ha Urea
  Post-emergent 100 L/ha UAN
Herbicides applied Pre-emergent Barley
2.5L/ha Trifluralin
250g/ha Diuron
Wheat
118g/ha Sakura
2L/ha Trifluralin
250g/ha Diuron
  Post-emergent

2.5 L/ha Boxer Gold

670 mL/ha Velocity

Fungicides applied Pre-emergent N/A
  Post-emergent 300 mL/ha Uniform
Insecticides applied Seed treatment N/A
  Pre-emergent

1 L/ha Chlorpyrifos

200 mL/ha Bifenthrin

  Post-emergent Yet to applied
Table 2 Soil profile
  pH EC
Grey sandy loam 5.4 0.109

Trial information

Find out more about this research at the department’s upcoming Dale Frost and Canola field day, near Beverley, on Thursday, 11 October.

DPIRD Dale field day
DPIRD Dale field day
DPIRD Dale field day program
DPIRD Dale field day program

Screening of frost in cereals - UA00162 - B Biddulph

Trial objectives

  1. To assess the genetic variation in commercial material for reproductive frost damage in commercial wheat and barley.
  2. Develop a rating system for frost susceptibility of commercial wheat and barley varierties suitable for use by industry.
  3. Screening international wheat lines with the Focused Identification of Germplasm Strategy (FIG)S for reproductive frost susceptibility 

Frost tolerance in wheat - PhD project - B Leske

Trial objectives
1. To better understand how different wheat varieties respond to frost to help the development of more robust, higher yielding varieties, less susceptible to frost in the future.
This project is supported by Royalties for Regions, GRDC and DPIRD

Crop type x time of sowing (TOS) trial - DAW00260 - B Biddulph, R Smith

Trial objectives

  1. Within a sowing window compare the relative frost susceptibility of wheat, barley and oats in frost prone landscapes.
  2. To develop across a sowing program the most stable and profitable cereal production in frost prone landscapes.

Hypothesis: Wheat is as profitable as barley and oats when phenology matches optimum time of sowing.

Nitrogen x seeding rate trial - DAW00260 - D Nicol

Hypothesis; Changing canopy density with seeding rate and nitrogen changes frost severity, duration, synchronisation of canopy development and frost damage.

Trial objectives

1. Use small plots to investigate the effect of nitrogen and seed rate on frost damage in wheat.

Intensive nitrogen x variety trial - DAW00260 - D Nicol

Hypothesis: Increasing nitrogen increases ground cover, dry matter, synchronisation of canopy tissue sensitivity to frost damage.

Trial objectives

  1. This trial will complement concurrent trials at other sites using larger plots investigating frost damage associated with different crop canopies and nitrogen concentration.

Debugging the role bacteria in frost management - K Ryan, B Biddulph

Hypothesis 1: Pseudomonas does increase frost damage (stem damage and floret sterility) in oats and wheat.

Hypothesis 2: A wet canopy does increase frost damage (stem damage and floret sterility) in wheat

Hypothesis 3: Ice nucleators do increase frost damage (stem damage and floret sterility) in wheat

Virtual crop walk

Take a virtual crop walk via our recently uploaded pictures and videos

Dale

Date: 12 April 2018

Field notes:

  • First time of sowing going in
12th April birds-eye view of trial
12 April birds-eye view of trial
First time of sowing going in
Living Farm sowing the first time of sowing (TOS) at the DPIRD GRDC frost trial site
 
Date: 26 April 2018

Field notes:

  • 3 TOS sown (12/4, 19/4, 26/4)
Rainfall events Rainfall (mm)
22 April 3
23 April 4.8
26th April germinating wheat
26 April germinating wheat 
26 April birds-eye view of trial
26 April birds-eye view of trial
 
Date: 17 May 2018

Field notes:

  • 5 TOS sown
17th May birds-eye view of trial
17 May birds-eye view of trial
17th May birds-eye view of trial
17 May birds-eye view of trial 
 
Date: 28 May

Field notes:

  • Seventh TOS sown
Rainfall events Rainfall (mm)
25 May 28.6
26 May 13.2
27 May 1.6
28 May 1.6
Wheat establishment - TOS 5
Wheat establishment - TOS 5
Germinating wheat - TOS 6
Germinating wheat - TOS 6
 
Date: 7 June 2018

Field notes:

Rainfall events Rainfall (mm)
1 June 5.4
5 June 1.8
6 June 6.2
7 June 6.8
7 June birds-eye view of trial
7 June birds-eye view of trial
Germination counts in TOS 6 sown 18th May
Germination counts in TOS 6 - sown 18th May
 
Date: 21 June

Field notes:

Rainfall events Rainfall (mm) Rainfall events Rainfall (mm)
8 June 0.6 14 June 0.2
9 June 6.8 17 June 0.2
10 June 2.6 18 June 6.8
11 June 0.2 19 June 1
12 June 0.4 20 June 0.2
13 June 0.2 21 June 0.2
TOS 6 stubble application on bacteria trial
TOS 6 Final stubble application on bacteria trial
21st June birds-eye view of trial
21st June birds-eye view of trial - all 8 TOS in

 

Date: 7 August

Field notes:

Rainfall events Rainfall (mm)
June 65
July 102.2
August (until 16 Aug) 76.6
Birds eye view of the trial site
Birds eye view of the trial site
After an additional 76mm in August the site has a bit of waterlogging damage
After an additional 76mm in August (until 16 August), the site has a bit of waterlogging damage
Date: 25th October

Field notes:

Rainfall events Rainfall (mm)
August 95.4
September 11.6
October 27.2

Site overview

 

Date: 11th December

Field notes:

Rainfall events Rainfall (mm)
November 0
December  1.6
Harvesting at the Dale frost research site
Harvesting at the Dale frost research site
Harvest time at the Dale frost research trial site
Harvest time at the Dale frost research trial site

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Climate resources

Incidence of frost varies strongly across the agricultural region, with greatest occurrence in the central, eastern and southern parts. The severity map shown below shows how cold it got.

August

frost severity map
Frost severity map 1-19 August

September

Frost severity map 2 - 9 September 2018
Frost severity map 2-9 September 2018
Frost events 5 Sept 2018
Frost events 5 September 2018
Frost events 6 Sept 2018
Frost events 6 September 2018
Frost events 15 September 2018
Frost events 15 September 2018
Frost events 16 September 2018
Frost events 16 September 2018

You can use this map to get a general indication of the likelihood of frost for your area for this season. Historical frost risk maps, show the past occurrence of frost risk and these are available from the Seasonal climate information page.

  • Frost risk maps shows the average number of low temperature events occuring in the months when crops are at most risk of frost damage from 1975-2014.
  • Extreme weather events tool uses data from DPIRD's extensive weather station network to map extreme temperatures, either below or above a specified threshold. It provides real-time information about the location, duration and severity of frost and heat stress events, to help grain growers manage according to reduce their financial impact.

Handy project resources and recent publications

Investors and partner organisations

GRDC

Contact information

Kelly Ryan
+61 (0)8 9368 3480