Annex

Heat a reasonably large volume of water to the required temperature using a heating unit capable of maintaining the temperature required (e.g. a water bath).

The seed should be tied loosely in an open mesh cloth bag (such as cheesecloth) and suspended in the water for the treatment. The water must be constantly circulated throughout the duration of the treatment. The amount of seed treated at one time should not be such as to cause the temperature in the water bath to go more than one degree below the treatment temperature.

After treatment, immediately plunge the seed into a cold water bath or cold running water and dry as quickly as possible.