This Act protects the rights of producers of new cultivars. The
registration of a new cultivar is acceptable only when its characteristics
are shown to be significantly different from any existing type.
Successful registration enables the plant breeder to control the licence
for the cultivar’s propagation, whether by seed or vegetative methods.
Separate schemes operate for the individual genera of horticultural and
agricultural crops, but all breeding activities may benefit from the 1964
Act. Producers of licenced plants pay a royalty fee to the breeder.