Join grains senior research officer Bob French live on Friday 1 December from 1-1.30pm as he delivers Optimum density and optimum seed rate for canola in Western Australia: how important are they and what factors affect them?
Twenty-four canola cultivar × plant density trials were conducted in Western Australia between 2010 and 2014 and 112 individual yield-density response curves fitted.
Economic optimum density was chosen as the point on the response curve where marginal return to increasing density equals the marginal cost.
This depends on the following parameters: seed cost, seed size, germination percentage, field establishment (the proportion of viable seeds that become established plants) and grain price.