The rise of new breeding techniques such as genetic modification is the main reason for introducing the essentially derived variety(EDV)system.EDV system has the value of reducing the modification of breeding and encouraging the original innovation of breeding,which is introduced into the newly revised Seed Law in China.However,the rapid development of new breeding technology,espe-cially gene editing technology,has posed challenges to the implementation of this system,including diffi-culties in determining the EDV assessment criteria,obstacles in application of the improved results of new breeding technology and the imbalance of interests among breeders.Accordingly,the EDV system should be adapted to the development of breeding technology from the aspects of setting differentiated identification standards,introducing responsibility rules and rebalancing the interests of breeders for the triple purpose of stimulating original innovation,promoting the application of new technology and realiz-ing the balance of interests.As China has begun to commercialize gene-edited varieties,it is necessary to work out the implementation method of EDV system according to the current situation of seed industry and the development trend of breeding technology to promote the effective implementation of the system and ensure its proper functioning.
new breeding techniquesessentially derivedbalance of interestsUPOVliability rules
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