INTRODUCTION OF QUARANTINED SEED FOR CROP-SCIENCE REGISTRATION

Registration of germplasms, cultivars, parental lines, and genetic sto cks in Crop Science provides recognition to scientists that develop an d document these plant materials. During 1987 through 1993, 8.5% of Cr op Science registrations were of foreign origin. Among these, 26% were quarantine-restricted. The purpose of this report is to provide guide lines to foreign contributors of quarantined plant germplasm for Crop Science registration. Seeds of several crop genera from other countrie s that might be registered are in the prohibited quarantine category a nd can be introduced only under permit. Examples include the crop gene ra Arachis, Gossypium, Oryza, Pennisetum, Sorghum, Triticum, and Zea. Send samples of clean, untreated seeds and associated information to t he USDA Plant Germplasm Inspection Station, Bldg. 580, BARC-East, Belt sville, MD 20705. The number of seeds needed for quarantined-growouts will vary depending on the class of registration. Procedures described herein generally apply to quarantined introductions for purposes othe r than Crop Science registration.