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| Researcher(s) |
Rohan Brill John Bromfield Rajneet Kaur Uppal |
|---|---|
| Year(s) | 2019 |
| Contributor | Department of Primary Industries NSW |
| Trial location(s) |
Wagga Wagga, ACT
|
| Further information | View external link |
The aim of this experiment was to understand canola variety heat stress responses and their capacity to adapt to warmer future climates.
• Heat stress during the reproductive development phase significantly reduced grain yield, harvest index and oil percentage.
• Varieties respond differently to heat stress: Nuseed Diamond had the highest reduction in grain yield and oil percentage under heat stress, whereas ATR Stingray had the lowest reduction in grain yield.
• Under heat stress, seed formation is more severely affected than pod formation.
• Canola pods that appear healthy can produce less, or even no, seed, and therefore do not achieve yield potential under heat stress.
The implications of this research are that heat stress has a significant effect on canola crops. Healthy canola pods heat stressed during the reproductive phase can have reduced seed and oil and therefore do not achieve yield and quality potential. Our field-based portable heat chamber system has increased the reliability of heat tolerance research and will allow the effect of heat stress on canola cultivars to be assessed for breeding programs.
| Lead research organisation | N/A |
|---|---|
| Host research organisation | N/A |
| Trial funding source | GRDC BLG108 |
| Trial funding source | DPI NSW |
| Related program | N/A |
| Acknowledgments |
This experiment was part of the ‘Effect of heat stress on canola – protocol and hypothesis development’ pilot project, BLG108, 2017–19, a joint investment between GRDC and NSW DPI under the Grains Agronomy and Pathology Partnership (GAPP) |
| Other trial partners | Not specified |
| Crop type | Oilseed: Canola |
|---|---|
| Treatment type(s) |
|
| Trial type | Experimental |
| Trial design | Randomised,Replicated |
| Sow date | Unknown |
|---|---|
| Harvest date | 2 November 2019 |
| Trial design method | RCBD Randomised Complete Block Design |
| Plot size | Not specified |
| Plot replication | 4 |
| Other trial notes |
This research paper is an extract from the publication Southern NSW Research Results 2020, available at |
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.
