Propagation should include

explaining the production of plants from seed, including managing seed storage, pretreatments (e.g., stratification, scarification, pelleted, coated), substrate, temperature, light, water, and diseases
determining the viability and germination rate of seeds.

Process/Skill Questions:

What factors help determine whether a grower should propagate his/her own plants or purchase young plants from a propagation specialist?
Why can seeds of some plants be collected and propagated while seeds of other plants cannot and must be purchased?
What environmental factors influence plant propagation? How can a grower control these factors?
What are the advantages of seed pretreatments?
What are the advantages and disadvantages of growing plants from seeds?