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Effect of seed size on wheat response to sowing depth

2014
CC BY 4.0

Research organisations
Liebe Group Department of Agriculture and Food WA

Trial details

Researcher(s) Bob French (DAFWA)
Year(s) 2014
Contributor Liebe Group
Trial location(s) Buntine, WA
Effect of seed size on wheat response to sowing depth locations
Aims

To test the interaction between wheat variety and seed size on the ability to emerge from deep sowing.

Key messages
  • Sowing wheat 75mm deep compared to 40mm deep reduced crop establishment by up to 62% and wheat yield by up to 24%.
  • Within the same variety small seed was much more sensitive to deep sowing than large seed.
  • Corack and Mace were the least sensitive varieties to deep sowing in terms of yield.
  • Growers should endeavour to use seed larger than 35 g/thousand seeds, especially if sowing into stressful conditions.
Lead research organisation Department of Agriculture and Food WA
Host research organisation Department of Agriculture and Food WA
Related program N/A
Acknowledgments

Shari Dougall and Bruce Thorpe, DAFWA Wongan Hills.

Christine Zaicou-Kunesch, DAFWA Geraldton, Laurie Maiolo, DAFWA Merredin, and GRDC for funding.

The Fitzsimmons family for hosting the trial.
Other trial partners Liebe Group
Download the trial report to view additional trial information

Method

Crop type Cereal (Grain): Wheat
Treatment type(s)
  • Sowing : Placement
Trial type Experimental
Trial design Replicated

Buntine 2014

Sow rate or Target density Various, calculated to give 120 plants per square meter
Sow date 29 May 2014
Harvest date Not specified
Plot size 10m x 1.54m
Plot replication 4
Paddock history 2011: pasture, 2012: wheat, 2013: canola
Fertiliser

29/05/2014: 80 kg/ha Macropro Plus banded (8 kg/ha N, 11 kg/ha P, 7 kg/ha K)
Herbicide

28/05/2014: 2 L/ha Spray.Seed, 118 g/ha Sakura

30/06/2014: 670 mL/ha Velocity
Other trial notes

Paper reviewed by: Sally Sprigg, DAFWA

Contact

Bob French, DAFWA

bob.french@agric.wa.gov.au

(08) 9081 3126
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
Site Depth Type pH EC P K N A OC CAT
Buntine, WA 0 - 10cm Sand over gravel 5.40 1.00
Buntine, WA 10 - 20cm Sand over gravel 4.40
Buntine, WA 20 - 30cm Sand over gravel 4.60
Soil conditions
Trial site Soil texture
Buntine, WA Sand over gravel
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Buntine, WA Kandosol
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 Buntine WA
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Climate

Buntine WA 2014

Observed climate information

Rainfall trial gsr (mm) 180mm

Derived climate information

Buntine 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

2014 trial report



Trial last modified: 11-09-2017 12:15pm AEST