Canola yield and heat stress in the Northern Agricultural Region

2017

Research organisation
Funding sources

Trial details

Researcher(s) Stephanie Boyce
Bob French
Martin Harries
Mark Seymour
Year(s) 2017
Contributor Northern Agri Group
Trial location(s) Geraldton, WA
Canola yield and heat stress in the Northern Agricultural Region locations
Aims

To quantify the impact of high temperature and water stress at flowering on canola yield.

Key messages

• Yield was highest from earlier sown plants; mid-May sown plants yielded only 18% of those sown in mid-April.
• This occurred despite warm autumn conditions which caused higher pod abortion on the main stems of mid-
April sown plants.
• Irrigation in spring reduced pod abortion by 15%; this highlights the advantage in using agronomic methods
such as stubble retention and canopy management to conserve moisture through to the podding stage.

Lead research organisation N/A
Host research organisation N/A
Trial funding source GRDC
Trial funding source DPIRD WA
Related program N/A
Acknowledgments

Thanks to the Geraldton DPIRD RSU for the trial site, Belinda White for technical assistance and GRDC and DPIRD
for project funding. Dr. Michael Forster of Edaphic Scientific for supplying sap flow sensors and help with calculations.


Other trial partners Not specified
Download the trial report to view additional trial information

Method

Crop type Oilseed: Canola
Treatment type(s)
  • Adverse Effects Management : Drought
  • Adverse Effects Management : Heat
Trial type Experimental
Trial design Replicated

Geraldton 2017

Sow date April 18, April 28, May 8 and May 18, 2017
Harvest date September 22 to October 2, 2017
Plot size Not specified
Plot replication 5
Download the trial report to view additional method/treatment information
Trial source data and summary not available
Check the trial report PDF for trial results.
Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Geraldton, WA Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Geraldton, WA Chromosol
Soil Moisture Source: BOM/ANU
Average amount of water stored in the soil profile during the year, estimated by the OzWALD model-data fusion system.
Year Geraldton WA
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Climate

Derived climate information

No observed climate data available for this trial.
Derived climate data is determined from trial site location and national weather sources.

Geraldton WA

NOTE: Exact trial site locality unknown - Climate data may not be accurate
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Some data on this site is sourced from the Bureau of Meteorology

SILO weather estimates sourced from https://www.longpaddock.qld.gov.au/silo/
Jeffrey, S.J., Carter, J.O., Moodie, K.B. and Beswick, A.R. (2001). Using spatial interpolation to construct a comprehensive archive of Australian climate data , Environmental Modelling and Software, Vol 16/4, pp 309-330. DOI: 10.1016/S1364-8152(01)00008-1.

Trial report and links

2017 trial report



Trial last modified: 16-06-2025 17:38pm AEST