Abiotic constraints in Canola
Broad constraint resources are outlined in the Agronomists Toolkit. Specific constraint categories are listed below:
Constraint - Tipping
- Flower and pod abortion or incompletely filled pods on sections of the flowering spike
- Frost, heat, aphids, nutrient deficiencies, and mositure stress can all cause tipping
- Canola plants are able to compensate for damage if sufficient moisture becomes available before the flowering and podding stages are finished.
Little can be done if heat or frost causes tipping. However nutirent defeciencies can be treated by application of the appropriate fertiliser, and aphids can be sprayed if it is economic to do so. Irrigation may also correct tipping if such an option is available.
Links and Resources
AOF - Tipping.
Description, contributing factors, and damage.
DAFWA - Heat stress in canola. Tipping
Introduction, what to look for, and what else it could be. Page last updated 2014.