The percentage of purity in breeder seeds is

The percentage of purity in breeder seeds is 100.
The genetic purity of breeder seed crops should be maintained at 100 percent.
Breeder seed is the seed or vegetative propagating material directly controlled by the originating or sponsoring plant breeder of the breeding programme or institution and/ or seed whose production is personally supervised by a qualified plant breeder and which provides the source for the initial and recurring increase of foundation seed.
Breeder seed shall be genetically so pure as to guarantee that in the subsequent generation i.e. certified foundation seed class shall confirm to the prescribed standards of genetic purity.