Seed transfer guideline

Instructions on how to match seed source to the planting site. Guidelines can be formulated in different ways. They can consist of a seed transfer zone within which seed can be moved at will. They can consist of a distance seed can be moved (e.g. 1° north or south, or 1000’ in elevation up or down). They can consist of a complex formula or computer program that calculates guidelines for specific sites or specific seedlots. Ideally seed transfer guidelines are based on biological data, but they are often based on anecdotal evidence or educated guesses.