Current through September 30, 2024
Section 101.7 - Seed organismsWhen used in conjunction with or in reference to seed organisms, the following shall mean:
(a)Master Seed. An organism at a specific passage level which has been selected and permanently stored by the producer from which all other seed passages are derived within permitted levels.(b)Working Seed. An organism at a passage level between Master Seed and Production Seed.(c)Production Seed. An organism at a specified passage level which is used without further propagation for initiating preparation of a fraction.49 FR 22625, May 31, 1984