Five Tips For Growing High-Vigour Canola Seed

The NSW Department of Primary Industries (NSW DPI) has released a new publication called Five tips for growing high-vigour canola seed to support producers using grower-retained seed for their canola establishment.

The publication outlines the key steps identified in a joint investment project between NSW DPI and Grains Research and Development Corporation (GRDC) to improve seed vigour.

Colin McMaster, NSW DPI Research and Development Agronomist said how growers manage this year’s seed-crop could well determine the success of next year’s establishment and financial return.

“The margin of error in establishing canola is much smaller than it used to be, as we are now sowing less seeds, it is costing growers more money, and we are placing those seeds in more hostile seed-beds due to earlier sowing.

“Canola seed has less energy reserves than larger-seeded crops and, as a result, is more sensitive to poor establishment across a range of seasonal conditions and agronomic management practices.

“Research and field surveys have identified that growers often only establish half of what is sown, and if the autumn break was less favourable its likely to be much less,” said Mr McMaster.

To reduce financial risk, some growers in the low to medium rainfall zone use open-pollinated (OP) canola varieties because the seed is cheap to buy, and it will grow true to the parent crop.

These traits allow growers to confidently retain seed which can increase flexibility and reduce financial risk within the farming system, for example, if sowing conditions are marginal then seeding rates can be increased, or in the event of a failed establishment growers can spray out for an alternative option.

The guide also covers other agronomic factors to improve canola establishment including reduced sowing speed, adequate fertiliser separation from the seed, reducing stubble loads and shallow/uniform seed placement.