The EBS has three levels of information about germplasm:

1. Germplasm

2. Seed lot

3. Package

Germplasm

Germplasm is the highest level concept. A germplasm record can refer to:

• A new F1 cross

• A segregating F3 “line”

• A fixed doubled haploid line

• A landrace accession from the germplasm bank

• A single seed in a single-seed descent breeding pipeline

• . . . or any other kind of germplasm

Seed Lots

Whenever germplasm is harvested and preserved, it is associated with a seed lot. Typically a seed lot is defined by when, where, and how it was harvested.

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Package

Packages represent physical entities. Each harvested seed lot could be stored in one or more package.

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Example of early generation / segregating materials:

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Example of fixed materials:

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