seed treatment

Most Australian native seeds have a dormancy mechanism which delays or interrupts germination until environmental conditions are favourable. In the bush fire is often the trigger to break dormancy and promotes germination. Research has shown that it is actually a chemical in the smoke from the fire that promotes germination. Dormancy occurs through physical or physiological means. Pre-treatment of these seeds prior to use in direct seeding or propagation in a nursery will assist the germination process. For example, to enable the natural regeneration of the bushland after plants have been damaged or destroyed by the fire.

For some species, mainly those with very hard seed coats, other treatments such as scarification, or hot water treatment have been found to be more effective in promoting germination. Some seeds require no treatment at all, and germinate well naturally. The seeds of some species use light as a trigger for germination, and for most seeds germination only occurs when the seed senses that moisture and temperature conditions are appropriate, as to try to germinate when it is too hot and dry would be suicidal.

Tranen has an extensive database on the treatments required to promote germination and the appropriate timing and field conditions for the sowing of seed. 

We have a custom-made smoke tent as well as a scarification machine.

In addition to treating seeds as part of our normal revegetation activities, some of our clients who will be direct seeding or raising seedlings in nursery situations send their seeds to us for prior treatment.

Should you require a quotation for or advice about seed treatment, please contact us by email by clicking here.