Researcher(s) |
Simon Craig (BCG) |
---|---|
Year(s) | 2013 |
Contributor | Birchip Cropping Group |
Trial location(s) |
Horsham, VIC
Quambatook, VIC |
To determine the yield penalty for retaining hybrid canola varieties in different yielding and disease environments (Mallee and Wimmera).
Retaining hybrid canola from one season to the next incurred a yield penalty of 0.3t/ha at Quambatook. There was a general penalty of 0.2t/ha for retained seed in the mean yield of all varieties (including OPs) at Horsham. Oil content and test weights of retained seed were lower at Quambatook, but not at Horsham. Retaining hybrid seed compromises plant vigour, disease resistance and herbicide tolerance. The yield advantages (0.2-0.3t/ha) from hybrid varieties, particularly within the Clearfield hybrid varieties, significantly outweigh the initial seed cost of $44/ha at 2kg/ha sowing rate.
Lead research organisation | N/A |
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Host research organisation | N/A |
Trial funding source | BCG members |
Related program | N/A |
Acknowledgments |
This 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 | Not specified |
---|---|
Harvest date | Not specified |
Plot size | Not specified |
Plot replication | Not specified |
Fertiliser | Not specified |
Herbicide | Not specified |
Fungicide | Not specified |
Other trial notes |
This trial was replicated at a site near horsham, however the results were presented graphically meaning they could not be accurately transferred to this document. |
Sow date | 14 May 2013 |
---|---|
Harvest date | Not specified |
Plot size | Not specified |
Plot replication | 4 |
Fertiliser |
14 May - Supreme Z @ 55kg/ha 17 July - SOA @ 90kg/ha 2 August - Urea @ 90kg/ha |
Herbicide |
14 May - Triflur X @ 2L + Avadex Xtra @ 2L/ha 25 June - Select @ 350ml/ha + Verdict @ 100ml/ha + Hasten @ 1% 9 July - Atrazine @ 1.1kg/ha + Hasten @ 1% (TT Only), Roundup Ready @ .9kg/ha + Hasten @ 1% (RR Only), Lontrel @ 130ml (all) 24 July - Intervix @ 600ml + Hasten @ 1% |
Fungicide |
14 May - Jockey (4L/T) (Seed) + Impact @ 400ml |
Other trial notes |
This trial was replicated at a site near horsham, however the results were presented graphically meaning they could not be accurately transferred to this document. |
# | Variety |
Treatment 1
|
Oil (%) | NDVI (.) | Grain yield (t/ha) |
---|---|---|---|---|---|
1 | █ 43C80 | █ F1 | 38 | 0.4 | 1.04 |
2 | █ 43Y85 | █ F1 | 38 | 0.53 | 1.26 |
3 | █ 44Y84 | █ F1 | 39 | 0.49 | 1.46 |
4 | █ Crusher TT | █ F1 | 34 | 0.28 | 1.32 |
5 | █ Hyola® 555TT | █ F1 | 37 | 0.53 | 1.42 |
6 | █ Hyola® 559TT | █ F1 | 40 | 0.41 | 1.21 |
7 | █ Garnet | █ F1 | 39 | 0.57 | 1.52 |
8 | █ Hyola® 433 | █ F1 | 41 | 0.51 | 1.62 |
9 | █ Hyola® 50 | █ F1 | 40 | 0.65 | 1.63 |
10 | █ 43Y23 | █ F1 | 37 | 0.54 | 1.85 |
11 | █ Hyola® 505 | █ F1 | 39 | 0.66 | 1.71 |
12 | █ IH50 | █ F1 | 36 | 0.52 | 1.48 |
13 | █ 43C80 | █ F2 | 37 | 0.42 | 1.15 |
14 | █ 43Y85 | █ F2 | 37 | 0.43 | 0.99 |
15 | █ 44Y84 | █ F2 | 37 | 0.42 | 1.17 |
16 | █ Crusher TT | █ F2 | 36 | 0.34 | 1.23 |
17 | █ Hyola® 555TT | █ F2 | 36 | 0.27 | 0.79 |
18 | █ Hyola® 559TT | █ F2 | 39 | 0.38 | 1.02 |
19 | █ Garnet | █ F2 | 38 | 0.53 | 1.53 |
20 | █ Hyola® 433 | █ F2 | 39 | 0.41 | 1.25 |
21 | █ Hyola® 50 | █ F2 | 39 | 0.51 | 1.39 |
22 | █ 43Y23 | █ F2 | 34 | 0.28 | 1.12 |
23 | █ Hyola® 505 | █ F2 | 40 | 0.48 | 1.44 |
24 | █ IH50 | █ F2 | 34 | 0.34 | 1.07 |
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.