The interaction between the seeding rate and row spacing of hybrid and open pollinated canola (Brassica napus) varieties on wild radish (Raphanus raphanistrum) growth and seed production

2019

Research organisatons
Funding source

Trial details

Researcher(s) Mike Ashworth
Year(s) 2019
Contributor School of Agriculture and Environment - The University of Western Australia
Trial location(s) , WA
The interaction between the seeding rate and row spacing of hybrid and open pollinated canola (Brassica napus) varieties on wild radish (Raphanus raphanistrum) growth and seed production locations
Aims

This study was conducted to determine the effect of factorial combinations of seeding rate, row spacing and pollination type on canola yield and wild radish fecundity.  

Key messages

The results of this study suggest:

  • Crop emergence was affected by pollination type (greater in open pollinated var. Bonito), increased seeding rates and increased row-spacing, with variety and row-spacing interaction.
  • Weed densities were affected by the interaction between variety and row-spacing only.
  • Wild radish seed production was reduced by increased seeding rate.
  • In general, canola yield was increased by increasing seeding rate and row-spacing in both weedy and weed free situations.
Lead research organisation Australian Herbicide Resistance Initiative
Host research organisation Australian Herbicide Resistance Initiative
Trial funding source GRDC 9175962
Related program N/A
Acknowledgments

This research was funded by the Grains Research Development Corporation of Australia (GRDC).


Other trial partners University of Adelaide
Download the trial report to view additional trial information

Method

Crop type Oilseed: Canola
Treatment type(s)
  • Crop: Variety
  • Sowing: Rate
  • Sowing: Row Spacing
Trial type Experimental
Trial design Blocked

2019

Sow date Unknown
Harvest date Unknown
Plot size Not specified
Plot replication Not specified
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
, WA Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
, 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 WA
2019 210.0mm
2018 298.6mm
2017 324.0mm
2016 280.6mm
2015 249.6mm
2014 234.8mm
2013 277.8mm
2012 250.0mm
2011 235.3mm
2010 205.1mm
2009 248.0mm
2008 234.3mm
2007 221.4mm
2006 234.0mm
2005 174.6mm
2004 202.6mm
2003 206.6mm
2002 158.6mm
2001 197.3mm
2000 306.8mm
National soil grid Source: CSIRO/TERN
NOTE: National Soil Grid data is aggregated information for background information on the wider area
Actual soil values can vary significantly in a small area and the trial soil tests are the most relevant data where available

Soil properties

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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.

WA

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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 last modified: 03-01-2023 14:32pm AEST