Application of esterase isozyme for identifying the purity of hybrid rice cultivars

The technology of esterase isozyme electrophoresis had been compared with field purity test in identifying genetic purity of hybrid rice.The results showed that there was no significantly difference between these two methods in purity test for hybrid rice cultivars.And the former could be used as an assistant measure in the practices.Some problems about the technology of esterase isozyme electrophoresis for purity test were also discussed.