Managing crop architecture and lodging risk

Crop architecture manipulation helps maximise yield

  • Reducing crop height -> reduced lodging and less shading
  • Increased branching -> supports more pods
  • Shorter flowering period -> more light reaches the leaf

Shorter plants and greater branching with TOPREX sets oilseed rape plants up to capture more sunlight. More even crops flower over a shorter period, with less light reflecting from the yellow petals and more light reaching the green leaf.

TOPREX treated plants stand better through to harvest -> Faster combining; Reduced pod shatter; Less disease; Lower drying costs.


Tailor the timing of your PGR to your situation

Prioritise crops that are vigorous, tall/weak stemmed varieties, or in a high lodging risk situation.
Where it is not appropriate is in backward crops where the crop GAI (Green Area Index) is under 1.0 in March or 2.0 in April.

To make the most of the regulatory benefits of TOPREX ensure the crop has started to grow in the spring and is applied at the beginning of stem extension. Avoid the use of TOPREX in cold conditions, when the crop is not growing, as plant growth regulation may be reduced.