"duly authorised officer" means any public officer authorised by the Minister under section twenty-four to exercise the powers of an inspector of seeds under this Act; "future goods", in relation to a contract of sale of prescribed seed, means prescribed seed to be acquired by the seller after the making of the contract of sale; "imported certified seed" means any prescribed seed certified in the country of its origin imported by a registered seed importer and certified as imported certified seed under the provisions of Part VIII; "inspector" means a person designated as an inspector of seeds under section twenty-three; "licensed seed seller" means any seed seller licensed as such under Part V; "official seed-tester" means a person approved by the Certifying Authority as an official seed-tester under section eighteen; "owner", in relation to any seeds, includes any person having for the time being the possession thereof; "prescribed seed" means any seed to which this Act applies by virtue of a regulation made under section thirty-five; "purity" means analytical purity expressed as a percentage by weight; "registered seed cleaner" means any seed cleaner registered as such for the time being under Part II; "registered seed importer" means any seed importer registered as such for the time being under Part II; "registered seed producer" means any seed producer registered as such for the time being under Part VIII; "restricted seed" means any seed to which a regulation made under section thirty-nine applies;