Retaining canola seed: a saving or high risk cost?

2012

Research organisaton
Funding source

Trial details

Researcher(s) Simon Craig (BCG)
Ciara Cullen (BCG)
Year(s) 2012
Contributor Birchip Cropping Group
Trial location(s) Sea Lake, VIC
Retaining canola seed: a saving or high risk cost? locations
Aims

To compare the performance of certified (F1) vs retained (F2) generations of an open-pollinated and hybrid canola variety at different plant densities.

Key messages

The hybrid canola 44Y84 (both certified and retained generations) yielded better than the open-pollinated variety 43C80, by an average of 0.3t/ha (20%). The hybrid established better than the OP variety. On average, 40% of seeds established as plants and plant densities above 20 plants/m2 maximised grain yield. The use of certified seed for both open-pollinated and hybrid canola did not increase yields compared with retained seed for both hybrid and open-pollinated. However, view results with caution as the variability within the trial was high.

Lead research organisation N/A
Host research organisation N/A
Trial funding source BCG members
Related program N/A
Acknowledgments

The trial was funded by BCG members through their membership.


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

Method

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

Sea Lake 2012

Sow date 17 April 2012
Harvest date Not specified
Plot size Not specified
Plot replication 4
Fertiliser

17 April - MAP (50kg/ha) (10% N, 21.9% P) 12 July - GranAm (90kg/ha) (24% S, 20% N)

Herbicide

17 April - Triflur X® (2L/ha) - all plots 2 Nov - Reglone® (1.5L/ha) - all plots

Insecticide

17 April - chlorpyrifos (300ml/ha) - pre-sowing Talstar (40ml/ha) - post-sowing

Fungicide

17 April - Flutriafol (400ml/ha) - on fertiliser

Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

# Variety
Treatment 1
Treatment 2
Grain yield (t/ha) Establishment plants (plants/m2)
1 43C80 (OP) 5 plants per sq/m Certified 1.04 2
2 43C80 (OP) 10 plants per sq/m Certified 1.49 3
3 43C80 (OP) 20 plants per sq/m Certified 1.66 7
4 43C80 (OP) 40 plants per sq/m Certified 1.77 9
5 43C80 (OP) 80 plants per sq/m Certified 1.81 13
6 43C80 (OP) 5 plants per sq/m Retained 1.12 1
7 43C80 (OP) 10 plants per sq/m Retained 1.23 3
8 43C80 (OP) 20 plants per sq/m Retained 1.63 4
9 43C80 (OP) 40 plants per sq/m Retained 1.73 10
10 43C80 (OP) 80 plants per sq/m Retained 1.99 14
11 44Y84 (Hybrid) 5 plants per sq/m Certified 1.35 2
12 44Y84 (Hybrid) 10 plants per sq/m Certified 1.9 4
13 44Y84 (Hybrid) 20 plants per sq/m Certified 2.09 7
14 44Y84 (Hybrid) 40 plants per sq/m Certified 2.01 16
15 44Y84 (Hybrid) 80 plants per sq/m Certified 2.13 30
16 44Y84 (Hybrid) 5 plants per sq/m Retained 1.28 2
17 44Y84 (Hybrid) 10 plants per sq/m Retained 1.42 3
18 44Y84 (Hybrid) 20 plants per sq/m Retained 1.96 4
19 44Y84 (Hybrid) 40 plants per sq/m Retained 1.97 15
20 44Y84 (Hybrid) 80 plants per sq/m Retained 2 34

Grain yield t/ha


Loading

Establishment plants plants/m2


Loading
Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Sea Lake, VIC Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Sea Lake, VIC Lake
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 Sea Lake VIC
2012 549.6mm
2011 587.2mm
2010 588.0mm
2009 526.6mm
2008 500.6mm
2007 499.9mm
2006 528.2mm
2005 565.3mm
2004 518.4mm
2003 516.3mm
2002 469.9mm
2001 498.5mm
2000 473.9mm
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

Loading

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.

Sea Lake VIC

NOTE: Exact trial site locality unknown - Climate data may not be accurate
Loading
Loading
Loading

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.