Clearfield and Triazine tolerance testing

Is a grain sample Clearfield or Triazine Tolerant (TT)? Tests exist to verify the resistance.

Clearfield: A method of checking for Clearfield resistance (resistance to Intervix or OnDuty) is available for wheat, barley and canola. The test takes one week for wheat and 2-3 weeks for barley and canola.

Triazine tolerance: A method of checking for Triazine tolerance using Atrazine is available for canola. The test takes two weeks.


How much seed?

Wheat/ Barley: 2 cups

Canola: half cup

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