Archive image from page 7 of Descriptive catalog of vegetables (1947). Descriptive catalog of vegetables . descriptivecatal1947asso Year: 1947 4 ASSOCIATED SEED GROWERS, INC. 1. A room in the Asgrow germination and analytical laboratory. The Functions of the Laboratory in Evaluating Seed Three prerequisites for 'good' seed are that the seed shall be (1) Viable, (2) Clean, (3) Disease-free. The most essential character of any Asgrow seed is its ability to germinate and pro- duce normal plants under average conditions. One of the primary functions of a seed laboratory is that of determining
Archive image from page 7 of Descriptive catalog of vegetables (1947). Descriptive catalog of vegetables . descriptivecatal1947asso Year: 1947 4 ASSOCIATED SEED GROWERS, INC. 1. A room in the Asgrow germination and analytical laboratory. The Functions of the Laboratory in Evaluating Seed Three prerequisites for 'good' seed are that the seed shall be (1) Viable, (2) Clean, (3) Disease-free. The most essential character of any Asgrow seed is its ability to germinate and pro- duce normal plants under average conditions. One of the primary functions of a seed laboratory is that of determining seed viability so that such seed may be evaluated for use by our customers. Viability implies ability to germinate and grow when proper environmental conditions are provided. A seed may be considered to have germinated when it develops those structures which are commonly recognized in different varieties, species, or families of plants as essen- tial to normal seedlings. Broken, malformed or other seedlings which are known to be incapable of producing plants under suitable laboratory conditions are to be considered as not having germinated. A second function of a seed laboratory is to determine the purity of a seed stock. This is accomplished by computing freedom from dirt, chaff, other crop seeds, and weed seeds. If weed seeds or other crop seeds are present, it is necessary to identify them accurately and to report if any noxious weeds are present. A third function of a seed laboratory is to determine if seed may be contaminated either internally or externally with bacterial or fungous organisms that are pathogenic to the seed or the plants that are expected to develop from the seed.
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