The effect of variety, time of sowing and plant population on high-yielding irrigated canola – 2015

2015

Research organisaton
Funding sources

Trial details

Researcher(s) Luke Gaynor (NSW DPI)
Neroli Graham (NSW DPI)
Tony Napier (NSW DPI)
Cynthia Podmore (NSW DPI)
Deb Slinger (NSW DPI)
Year(s) 2015
Contributor Department of Primary Industries NSW
Trial location(s) Leeton, NSW
Further information View external link
The effect of variety, time of sowing and plant population on high-yielding irrigated canola – 2015 locations
Aims

The experiment at Leeton evaluated the effect of variety, time of sowing, plant population and their interactions on canola grain yield, grain quality (oil content) and crop growth (lodging and harvest index). 

Key messages
  • Varietal selection again proved to be the strongest determinant of irrigated canola grain yield in the second year of experiments at Leeton.
  • The three highest yielding varieties were Nuseed® Diamond, Hyola® 50 and Nuseed® GT-50.
  • Sowing time and variety interaction affected lodging, grain yield and harvest index (HI).
  • Plant population alone only affected lodging but the variety interaction affected lodging and the harvest index.
Lead research organisation N/A
Host research organisation N/A
Trial funding source GRDC DAN00198
Trial funding source DPI NSW
Related program N/A
Acknowledgments

GRDC and NSW DPI jointly funded this research which is part of the ‘Southern irrigated cereal and canola varieties achieving target yields project’, DAN00198, 2014–17. The support of Daniel Johnston, Glenn Morris, Gabby Napier and Michael Hately for assistance with experiment management, field assessments and data collection is gratefully acknowledged.


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

Method

Crop type Oilseed: Canola
Treatment type(s)
  • Crop: Variety
  • Sowing: Rate
  • Sowing: Timing
Trial type Experimental
Trial design Replicated

Leeton 2015

Sow rate or Target density 25 plants/m2 (low density) and 50 plants/m2 (high density)
Sow date 3 April and 27 April 2015
Harvest date 13 November and 16 November 2015
Plot size Not specified
Plot replication Not specified
Fertiliser

Nitrogen budget
Total 318 kg N/ha (68 kg N/ha starting soil level;

100 kg N/ha pre-sowing;

100 kg N/ha topdressed; approximately 50 kg N/ha mineralised during growing season)

Other trial notes

This research paper is an extract from the publication Southern NSW Research Results 2015, available at
https://www.dpi.nsw.gov.au/agriculture/broadacre-crops/guides/publications/southern-nsw-research-results

Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

# Treatment 1
Lodging (0-9) Oil (%) Grain yield (t/ha) Average harvest index (value)
1 1 3.7 43.1 3.04 0.2
2 2 2.8 43 3.33 0.23
3 3 1.5 44 3.38 0.24
4 4 2.3 44.8 3.62 0.3
5 5 1.6 44.9 3.65 0.21
6 6 0.8 43.6 3.72 0.29
7 7 0.2 45.1 3.74 0.23
8 8 1.6 45.2 3.85 0.28
9 9 0.3 45.5 3.93 0.24
10 10 1.5 44.3 4 0.26
11 11 0.1 43.1 4 0.26
12 12 1.4 44.6 4.14 0.27
13 1314 0.5 45.5 4.24 0.26
14 15 1.7 44.9 4.59 0.29

Grain yield t/ha


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Average harvest index value


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Lodging 0-9


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Oil %


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Trial results Table 2

@T1: @T2:
# Treatment 1
Grain yield (t/ha) Lodging (0-9) Average harvest index (value) Grain yield (t/ha) Lodging (0-9) Harvest index (value)
1 1 2.94 2.9 0.2 3.14 4.5 0.2
1 2 3.92 0.2 0.25 4.07 0 0.27
2 3 3.68 1.6 0.28 3.56 2.9 0.31
2 4 4.67 1.2 0.29 4.51 2.2 0.3
3 5 4.05 1.6 0.26 3.87 1.3 0.27
3 6 4 0.9 0.28 3.43 0.8 0.3
4 7 4.04 1.8 0.27 4.23 1.1 0.28
4 8 4.11 0.7 0.26 4.38 0.2 0.26
5 9 4.23 0.3 0.26 3.62 0.3 0.23
5 10 3.42 1.9 0,19 3.87 1.2 0.23
6 11 3.31 1.8 0.23 3.35 3.9 0.24
6 12 3.68 1.7 0.28 4.02 1.6 0.29
7 13 4.01 0.6 0.24 3.46 0 0.22
7 14 3.23 1.8 0.22 3.54 1.1 0.25
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Grain yield t/ha


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Average harvest index value


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Harvest index value


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Lodging 0-9


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Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Leeton, NSW Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Leeton, NSW Sodosol
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 Leeton NSW
2015 58.4mm
2014 57.8mm
2013 107.5mm
2012 189.7mm
2011 168.7mm
2010 81.7mm
2009 22.9mm
2008 30.1mm
2007 23.6mm
2006 11.2mm
2005 39.9mm
2004 23.1mm
2003 56.3mm
2002 33.9mm
2001 205.8mm
2000 325.5mm
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.

Leeton NSW

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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: 20-10-2023 08:12am AEST