Canola School: Is it Heat Stress? Assessing Damages & ID'ing the Culprit

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Abiotic — or “nonliving” — stresses can cause significant yield loss in canola. And, unfortunately, symptoms like sterile and distorted pods, flower blast and pale petals are not unique to one stressor, making misdiagnosis very common. For example, extreme heat, nutrient deficiency and herbicide injury can all result in very similar damage in canola plants.

So, how do we differentiate the signs of heat stress from those caused by other abiotic factors?

In this episode of Canola School, Murray Hartman, oilseed specialist with Alberta Agriculture and Rural Development, shares some tips to help determine whether or not a plant has responded to heat, the importance of early-assessment and what temperatures are a cause for concern.

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