germination of a seed sample, when grown under, ideal, controlled

conditions. This result provides an indication on how the seed will

perform in the field or greenhouse, but since the conditions in the

field or greenhouse do not always match those in the laboratory,

the results may be different.

We also have not trialed genetically modified varieties. In order to

trial or use genetically modified varieties we would need to meet

the requirements of the Gene Technology Act (2000) as well as any

other relevant legislation. It is illegal to sell or trial vegetable seeds

in Australia, which have been genetically modified.

and variety will have a different lifecycle and its performance will

fall at different rates. Usually the vigour will fall first and be seen by

slower emergence, then the germination will start to fall. An

increase in the number of abnormal seedlings and an increase in

the spread of the germination will show this in the germination

tests.

most basic is slurry treatment, where chemical is applied without

any binder. A problem with this is that it often flakes off and is

being phased out of use for OH&S reasons. The alternative to this

Polycoat. Polycoat applies chemical evenly to each seed with a

binder that ensures that the chemical remains on the seed. The

next step is Encrusting. Encrusting is the application of chemical

and powder to fill in the hollows on the seed. It can increase the

size and weight of the seed, but it is possible to still see the shape

of the seed. Finally there is pelleting. Pelleting has been available

for many years and provides a complete cover to the seed. The size

and shape of the seed is completely changed. There are many

materials used for pelleting and the ones used vary depending on

the seed being treated to ensure the best possible performance.