16. Publication of Plant Breeders' Right Where the Ministry grants a plant breeders' right, it shall give public notice to that effect. 17. Deposition of Samples The Ministry shall, for the purpose of conservation, cause that the holder deposits at the Institute of Biodiversity Conservation sample of the new plant varieties with respect to which a plant breeders' right have been granted. 18. Maintenance of Variety 1/ The holder shall have the obligation to maintain the variety to ensure that all the characteristics of the variety at the date of granting the right are maintained throughout the duration of the plant breeders' right. 2/ The Ministry may, to ensure that the variety is maintained, require the holder to furnish material of the variety or any other necessary information. PART THREE TRANSFER AND REVOCATION OF PLANT BREEDERS' RIGHT 19. Transfer of Right 1/ Plant breeders' right may be transferred to other persons by a contract or by the law. 2/ A transfer of plant breeders' right by a contract may have no effect unless entered in the register of plant breeders' right. 20. Surrender of Plant Breeders' Right 1/ A holder may surrender his plant breeders' right by giving notice to the Ministry. 2/ Upon receiving notice of surrender, the Ministry shall enter same in the register of plant breeders right and give public notice thereof. 3/ Where an action in respect of a plant breeders' right is pending before a court, the Ministry shall not register the surrender except by leave of the court or by consent of the parties in the court proceeding. 21. Plant Breeders' Right Granted to a Person not Entitled to 1/ Where a plant breeders' right has been granted to a person who is not entitled to, the person who is entitled to the plant breeders' right may apply to the Ministry demanding that the plant breeders' right be transferred to him. 2/ The Ministry shall, upon examining the application for the transfer and the response of the holder and ascertaining that the right has wrongly been granted to the holder and that the applicant is entitled thereto, cause the plant breeders' right to be transferred