| Researcher(s) |
Simon Craig (BCG) Ciara Cullen (BCG) |
|---|---|
| Year(s) | 2012 |
| Contributor | Birchip Cropping Group |
| Trial location(s) |
Sea Lake, VIC
|
To compare the performance of certified (F1) vs retained (F2) generations of an open-pollinated and hybrid canola variety at different plant densities.
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 |
| Crop type | Oilseed: Canola |
|---|---|
| Treatment type(s) |
|
| Trial type | Experimental |
| Trial design | Replicated |
| 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 |
| # | Variety |
Treatment 1
|
Treatment 2
|
Establishment plants (plants/m2) | Grain yield (t/ha) |
|---|---|---|---|---|---|
| 1 | █ 43C80 (OP) | █ 5 plants per sq/m | █ Certified | 2 | 1.04 |
| 2 | █ 43C80 (OP) | █ 10 plants per sq/m | █ Certified | 3 | 1.49 |
| 3 | █ 43C80 (OP) | █ 20 plants per sq/m | █ Certified | 7 | 1.66 |
| 4 | █ 43C80 (OP) | █ 40 plants per sq/m | █ Certified | 9 | 1.77 |
| 5 | █ 43C80 (OP) | █ 80 plants per sq/m | █ Certified | 13 | 1.81 |
| 6 | █ 43C80 (OP) | █ 5 plants per sq/m | █ Retained | 1 | 1.12 |
| 7 | █ 43C80 (OP) | █ 10 plants per sq/m | █ Retained | 3 | 1.23 |
| 8 | █ 43C80 (OP) | █ 20 plants per sq/m | █ Retained | 4 | 1.63 |
| 9 | █ 43C80 (OP) | █ 40 plants per sq/m | █ Retained | 10 | 1.73 |
| 10 | █ 43C80 (OP) | █ 80 plants per sq/m | █ Retained | 14 | 1.99 |
| 11 | █ 44Y84 (Hybrid) | █ 5 plants per sq/m | █ Certified | 2 | 1.35 |
| 12 | █ 44Y84 (Hybrid) | █ 10 plants per sq/m | █ Certified | 4 | 1.9 |
| 13 | █ 44Y84 (Hybrid) | █ 20 plants per sq/m | █ Certified | 7 | 2.09 |
| 14 | █ 44Y84 (Hybrid) | █ 40 plants per sq/m | █ Certified | 16 | 2.01 |
| 15 | █ 44Y84 (Hybrid) | █ 80 plants per sq/m | █ Certified | 30 | 2.13 |
| 16 | █ 44Y84 (Hybrid) | █ 5 plants per sq/m | █ Retained | 2 | 1.28 |
| 17 | █ 44Y84 (Hybrid) | █ 10 plants per sq/m | █ Retained | 3 | 1.42 |
| 18 | █ 44Y84 (Hybrid) | █ 20 plants per sq/m | █ Retained | 4 | 1.96 |
| 19 | █ 44Y84 (Hybrid) | █ 40 plants per sq/m | █ Retained | 15 | 1.97 |
| 20 | █ 44Y84 (Hybrid) | █ 80 plants per sq/m | █ Retained | 34 | 2 |
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.
